Shah Nita H.

2022-2023

1. (With Nisha Sheoran, Ekta Jayswal, Dhairya Shukla, Nehal Shukla, Jagdish Shukla,Yash Shah): Modelling COVID-19 transmission in the United States through interstate and foreign travels and evaluating impact of governmental public health interventions. Journal of Mathematical Analysis and Applications, 514, 1-16, 2022. # 629 ISSN: 0022-247X
2. (With Milan B Patel): An EOQ model for deteriorating items when demand is cloud fuzzy. International Journal of Logistics Systems and Management, 42 (1), 140-152, 2022. # 610 ISSN: 1742-7975
3. (With Ekta N. Jayswal & Ankush H. Suthar): Positive Impact of Lockdown due to COVID-19 on Pollution. Discontinuity, Nonlinearity, and Complexity, 11 (2), 353-362, 2022. # 650 ISSN: 2164-6414
4. (With Kavita Rabari & Ekta Patel): A Deteriorating Inventory Model under Overtime Production and Credit Policy for Stock and Price Sensitive Demand Function. Operational Research in Engineering Sciences: Theory and Applications, 5 (2), 85-98, 2022. # 734 ISSN: 2620-1607
5. (With Jalpa N. Vaghela, Purvi M. Pandya & Yash N. Shah): Mathematical model for transmission of Chlamydia due to sexual activity and unhygienic environment. Exploration of Medicine, 3, 375-385, 2022. # 764 ISSN: 2692-3106
6. (With Nisha Sheron & Ekta Jayswal): Fractional order model for malaria-cholera co-infection. Mathematics in Engineering, Science and Aerospace, 13 (3), 833-852, 2022. # 626 ISSN: 2041-3165
7. (With Bipasha Paul Shukl & Anupam Priamvada): Ensemble-based Model for Rainfall Nowcasting using Automatic Weather Station Data. Journal of Engineering Science and Technology Review, 15 (4), 111-116, 2022. # 775 ISSN: 1791-2377
8. (With Pratik H Shah & Milan B Patel): Inventory Policies for Non-instantaneous Deteriorating Items with Advance sales, Advertisement efforts and effect of Static Versus Dynamic Rebate. International Journal of Supply and Operations Management, 9 (1), 95-107, 2022. # 656 ISSN: 2383-2525
9. (With Ekta Ptel & Kavita Rabari): Investigation of carbon emissions due to COVID-19 vaccine inventory. International Journal of System Assurance Engineering and Management, 13 (1), 409-420, 2022. # 710 ISSN: 0976-4348
10. (With Ankush H. Suthar, Ekta N. Jayswal, Nehal Shukla & Jagdish Shukla): Modelling the impact of plasma therapy and immunotherapy for recovery of COVID‑19 infected Individuals. São Paulo Journal of Mathematical Sciences, 15 (1), 344-364, 2021. # 627 ISSN: 2316-9028
11. (With Pratik H Shah & Milan B Patel): Pricing Decisions with Effect of Advertisement and Greening Efforts for a Greengocer. Sustainability, 14, 1-13, 2022. # 757 ISSN: 2071-1050
12. (With Bipasha Paul Shukla & Anupam Priamvada): "Precipitation nowcasting using ensemble learning approaches. International Journal of Global Warming, 28 (4), 387-399, 2022. # 754 ISSN: 1758-2091
13. (With Milan B Patel & Pratik H Shah): Inventory policies under fuzzy and cloud fuzzy Environment. International Journal of Information and Decision Sciences, 14 (4), 356-370, 2022. # 667 ISSN: 1756-7017
14. (With Bipasha Paul Shukla & Jyoti Chahal): Diurnal variations in drop-size, rainfall rate relationship for Shillong Station. METSZET Journal, 7 (11), 262-275, 2022. # 777 ISSN: 2061-2710
15. (With Purvi M. Pandya & Ekta N. Jayswal): A Mathematical Approach to Study Socio-Academic Pressure on Students. Gradiva Review Journal, 8 (11), 701-714, 2022. # 660 ISSN: 0363-8057
16. (With Nisha Sheron): Homotopy Perturbation Method for Pneumonia–HIV Co-Infection. Foundations, 2, 1101–1113, 2022. # 731 ISSN: 2673-9321
17. (With Nisha Sheroan & Ekta Jayswal): Optimum controls to avert co-infection of Malaria - COVID-19. Journal of Statistics and Management Systems, 25 (8), 2043-2059, 2022. # 682 ISSN: 0972-0510
18. (With Naisargi M Prajapati & Ekta K Patel): Sustainable Production Deteriorating Inventory Model under Preservation Technology Investment and Carbon Emissions for Stock and Price-Sensitive Demand. Gradiva Review Journal, 8 (12), 997-1010, 2022. # 782 ISSN: 0363-8057
19. (With Moksha H Satia & Foram A Thakkar): Mathematical Treatment to Toxic Air Pollutants Caused by Stakeholders. Gradiva Review Journal, 9 (1), 535-546, 2023. # 531 ISSN: 0363-8057
20. (With Ankush H. Suthar & Purvi M. Pandya): Transmission of COVID-19 through asymptomatic individuals. International Journal of Applied Systemic Studies, 10 (1), 1-15, 2023. # 633 ISSN: 1751-0589
21. (With Kavita Rabari & Ekta Patel): Dynamic Pricing and Goodwill Inventory Model for Deteriorating Items. Revista Investigacion Operacional, 44 (1), 68-78, 2023. # 647 ISSN: 0257-4306
22. (With Mamta Kumari, Pijus Kanti De, & Pankaj Narang): Integrated optimization of inventory, replenishment, and vehicle routing for a sustainable supply chain utilizing a novel hybrid algorithm with carbon emission regulation. Expert Systems with Applications, 220, 1-18, 2023. # 793 ISSN: 0957-4174
23. (With Kavita Rabari & Ekta Patel): Greening efforts and deteriorating inventory policies for price-sensitive stock-dependent demand. International Journal of Systems Science: Operations & Logistics, 10 (1), 1-7, 2023. # 678 ISSN: 2330-2674
24. (With Pratik H Shah): Optimal inventory policies for non-instantaneous deteriorating items with advance sales and advertisement efforts. International Journal of Operational Research, 46 (3), 343-357, 2023. # 616 ISSN: 1745-7645
25. (With Jyoti Chahal, Bipasha Paul Shukla & Anupam Priyamvada): Microphysical Modelling of Precipitation using Disdrometer observations. eMegha, Winter, 36, 2023. # 808
26. (With Kapil Chaudhary): Analysis of the Ebola with a fractional-order model involving the Caputo-Fabrizio derivative. Songklanakarin Journal of Science and Technology, 45 (1), 69-79, 2023. # 782 ISSN: 0125-3395
27. (With Ekta Jayswal & Ankush H Suthar): Fractional-order model on vaccination and severity of COVID-19. International Journal of Dynamics and Control, 11 (3), 1363-1374, 2023. # 737 ISSN: 2195-2698
28. (With Milan B Patel & Pratik H Shah): Optimal Procurement of COVID-19 Vaccine

with Time-Dependent Holding Cost and Shortages under Cloud Fuzzy Demand Rate. Journal of Uncertain Systems, 16 (2), 15 pages, 2023. # 724 ISSN: 1752-8917

Talks

1. Limit and Continuity. Workshop in Mathematical Problem Solving for Students of Mathematics. M G Science College Ahmedabad, Sep. 3, 2022. # 773
2. Heat Diffusion Model on Random Graph. ICRAGT-2022, Gujarat University, Ahmedabad, Sep 10-11, 2022. # 783
3. Sustainable Inventory Routing. Contemporary Issues in Sustainable Supply Chain Management: Modelling and Optimization, ORSI-Meerut Chapter, Sep. 24, 2022. # 784
4. Chaos in Learning Two-Person Game. International Conference on Applied Mathematical Sciences (ICAMS-2022), GU & PU, Nov 12-13, 2022. # 767
5. Tips for Writing and Publishing Research Findings in the Indexed Journal. Akenten Appiah-Menka University, Ghana, Nov. 18,    #792
6. Incredible Potential of Prime Numbers. National Mathematics Day, DHGU, Sagar, MP, Dec-22, 2022. # 794
7. Sampling Techniques for Quantitative Research. ResearchME-2023, Department of Forensic Sciences, GU, Mar. 20, 2023. # 806
8. Optimal Trajectory of Cricket Ball for Sixer. CORDENumACA'23, Mohandas College of Engineering and Technology, Anad, Trivandrum, Mar. 23, 2023. # 785
9. Cricket Team Selection Using Mixed-Integer Programming. ARYA-23, School of Emerging Sciences & Technology, GU, Mar. 25, 2023. # 804

Books:

1. Monika K Naik: Integral Transforms and its Applications, 2022. Degruyter ISBN: 978-311-07-9285-0
2. Falguni Acharya: Solid Geometry with MATLAB Programming, 2022. River ISBN: 978-877-02-2761-2
3. Jitendra Panchal: Elementary Vector Calculus and Its Applications with MATLAB Programming, 2022. River ISBN: 978-877-02-2387-4
4. Monika K Naik: Mathematical Analysis of Inventory Policies in Supply Chain, 2022. Lambart Academic Publishing, Germany ISBN: 978-620-4-74949-5
5. Kunal T Shukla: Optimal Strategies for Deteriorating Inventory System for Demand Declining Market, 2022. Lambart Academic Publishing, Germany ISBN: 978-620-5-51629-4

2021-2022

1. (With Ekta Jayswal and Purvi Pandya): Fractional order model for yield through diagnosed/undiagnosed soil. São Paulo Journal of Mathematical Sciences, 15 (1), 392–403, 2021. # 639 ISSN: 1982-6907
2. (With Nisha Sheoran, Ekta Jayswal): Mathematical Model of HBV/HCV Co-Infection. Discontinuity, Nonlinearity, and Complexity , 10 (3), 409-424, 2021. # 604 ISSN: 2164-6376
3. (With Foram A Thakkar & Moksha H. Satia): Center Manifold Theory for Hemorrhage due to High Blood Pressure. Compliance Engineering Journal, 12 (6), 22-39, 2021. # 555 ISSN: 0898-3577
4. (With Ekta N. Jayswal & Ankush H. Suthar): Curtailing Pollution due to Processes on Plastic Disposal. Journal of Environmental Accounting and Management, 9 (4), 331-342, 2021. # 608 ISSN: 2325-6192
5. (With Kavita Rabari & Ekta Patel): Inventory and Preservation Investment For Deteriorating System with Stock-Dependent Demand and Partial Backlogged Shortages. Yugoslav Journal of Operations Research, 31 (2), 181-192, 2021. # 611 ISSN: 0354-0243
6. (With Milan Patel): An Inventory Model for Substitutable Deteriorating Products under Fuzzy and Cloud Fuzzy Demand Rate. Optimal Decision Making in Operations Research and Statistics Methodologies and Applications, Chapter 13, 279-289, 2021. # 624 ISBN: 978-036-76-1875-9
7. (With Monika Naik): Co-ordinated Selling Price and Replenishment Policies for Duopoly Retailers under Quadratic Demand and Deteriorating Nature of Items. Optimal Decision Making in Operations Research and Statistics Methodologies and Applications, Chapter 14, 290-300, 2021. # 655 ISBN: 978-036-76-1875-9
8. (With Pratik Shah & Milan Patel): An Inventory model with Carbon Emission dependent Demand for a Manufacturer-Distributor Supply Chain. Adalya Journal, 10 (6), 151-163, 2021. # 720 ISSN: 1301-2746
9. (With Nisha & Ekta Jayswal): Bifurcation Analysis for COVID-19 Model with Inhibitory Effect. Advanced Applications of Computational Mathematics, Chapter 13, 215-233, 2021. # 653 ISBN: 978-87-7022-604-2
10. (With Ankush & Ekta J): Multi-zonal transmission dynamics of pandemic COVID-19 and its stability. Journal of Safety Science and Resilience, 1 (2), 128-134, 2020. # 649 ISSN: 2666-4496
11. (With Ekta Patel, and Kavita Rabari): Upper-Lower Bounds for the Profit of an Inventory System Under Price-Stock Life Time Dependent Demand. Decision Making in Inventory Management (Springer), Chapter 1, 1-16, 2021. # 681 ISBN: 978-981-16-1729-4
12. (With Mrudul Jani & Urmila Chaudhari): An Inventory Policy for Maximum Fixed Life-Time Item with Back Ordering and Variable Demand Under Two Levels Order Linked Trade Credits. Decision Making in Inventory Management (Springer), Chapter 5, 61-75, 2021. # 558 ISBN: 978-981-16-1729-4
13. (With Pratik Shah): Inventory Policies for Non-instantaneous Deteriorating Items with Random Start Time of Deterioration. Decision Making in Inventory Management (Springer), Chapter 6, 77-89, 2021. # 640 ISBN: 978-981-16-1729-4
14. (With Kavita Rabari & Ekta Patel): An Inventory Model for Deteriorating Items with Constant Demand Under Two-Level Trade-Credit Policies. Decision Making in Inventory Management (Springer), Chapter 7, 91-103, 2021. # 620 ISBN: 978-981-16-1729-4
15. (With Milan Patel) Retailer’s Optimal Ordering Policy Under Supplier Credits When Demand is Fuzzy and Cloud Fuzzy. Soft Computing in Inventory Management (Springer), Chapter 1, 1-17, 2021. # 635 ISBN: 978-981-16-2156-7
16. (With Urmila Chaudhari & Mrudul Jani): Impact of Two Different Trade Credits Options on a Supply Chain with Joint and Independent Decision Under Trapezoidal Demand. Soft Computing in Inventory Management (Springer), Chapter 10, 177-203, 2021. # 559 ISBN: 978-981-16-2156-7
17. (With Monika Naik): A Coordinated Single-Vendor Single-Buyer Inventory System with Deterioration and Freight Discounts. Soft Computing in Inventory Management (Springer), Chapter 11, 205-224, 2021. ISBN: 978-981-16-2156-7
18. (With Pratik H. Shah, Milan B. Patel & Wakhid Ahmad Jauhari): Inventory policies for non-instantaneous deteriorating items with preservation technology investment under price-sensitive time-dependent demand. International Journal of Procurement Management, 14 (6), 702-723, 2021. # 599 ISSN: 1753-8432
19. (With Pratik H. Shah and Milan B. Patel): Retailer’s inventory decisions with promotional efforts and preservation technology investments when supplier offers quantity discounts. OPSEARCH, 58(4), 1116-1132, 2021. # 690 ISSN: 0030-3887
20. (With Ankush H. Suthar, Moksha H. Satia, Ekta N. Jayswal and Foram A. Thakkar): Z-control on dynamics of pollution-allergy model. Applied Mathematics - A Journal of Chinese Universities, 36 (4), 583-598, 2021. # 563 ISSN: 1005-1031
21. (With Ekta Patel & Kavita Rabari): Inventory Model for COVID-19 Medicine under Carbon Emissions Sensitive Demand. International Journal of Operations and Quantitative Management, 27 (3), 237-244, 2021. # 719 ISSN: 1082-1910
22. (With Moksha H Satia): Mathematical Model for the Dispersion of Toxicity through Commuters. TWMS Journal of Applied and Engineering Mathematics, 12 (1), 268-283, 2022. # 556 ISSN: 2587-1013
23. (With Zalak Patel and Bijal Yeolekar): Vertical Transmission of HIV-HBV Co-infection with Liquor Habit and Vaccination. Malaysian Journal of Mathematical Sciences, 16 (1), 119-142, 2022. # 440 ISSN: 1823-8343
24. (With Pratik H Shah and Milan B Patel): Retailer’s inventory decisions with exchange scheme under the effect of advertisement efforts. Journal of Industrial and Production Engineering, 39 (3), 158-165, 2022. # 705 ISSN: 2168-1023
25. (With Nita Shah, Ekta Patel & Kavita Rabari): Optimal Inventory Policies for Price and Time Sensitive Demand Under Advertisement. Recent Advances in Computer Science and Communications, 15 (1), 131-138, 2022. # 595 ISSN: 2666-2566
26. (With Nita H. Shah, Kavita Rabari & Ekta Patel): Economic Production Model with Reliability and Inflation for Deteriorating Items under Credit Financing When Demand Depends on Stock Displayed. REVISTA INVESTIGACIÓN OPERACIONAL, 43 (2), 203-213, 2022. # 708 ISSN: 02574-306
27. (With Ekta Patel & Kavita Rabari): EPQ Model to Price-Sensitive Stock Dependent Demand with Carbon Emission under Green and Preservation Technology Investment. Economic Computation and Economic Cybernetics Studies and Research, 56 (1), 209-222, 2022. # 697 ISSN: 1842–3264
28. (With Milan B. Patel & Pratik H. Shah): A New Defuzzification Method for Cost Analysis of Economic Order Quantity under Cloud Pentagonal Fuzzy Demand. International Journal of Fuzzy System Applications, 11 (1), 1-17, 2022. # 711 ISSN: 2156-177X
29. (With Moksha H Satia): Impact of Covid-19 on Film Industry. Dynamics of Continuous, Discrete and Impulsive Systems Series B: Applications & Algorithm, 29 (3b), 225-239, 2022. # 659 ISSN: 1918-2538
30. (With Pratik Shah & Milan Patel): Optimal Decisions for an Impresario before the Start of Program Series. AIMS International Journal of Management, 16 (1), 17-27, 2022. # 740 ISSN: 1939-7011

Talks

1. Manufacturer-Distributor Supply Chain for Vaccine with Carbon Emission Dependent Demand. International Webinar on Emerging Trends in Sustainable Supply Chain Management (ETSSCM-2021), Gujarat University, Jun-12, 2021. # 722
2. Special Session: Carbon Emission and Supply Chain. Interdisciplinary Research in Applied Mathematics, Management and Technology (IRAMMT-2021), American Institute of Management and Technology, June 20-21, 2021. # 725
3. Attitude Modeling Using Kalman Filter Approach. Digital Conference on Satellite Praxes Through Mathematical Techniques, Gujarat University, July 10, 2021. # 723
4. Vectorized Categorization and Prediction. System Modelling and Artificial Intelligence (SMAI-2021), Manipal University, Jul-27, 2021. # 727
5. Mathematical Model to Restrain Transmission of COVID-19 through Various Controls. Prediction & Spread of COVID-19 Among the North-Eastern States, National Institute of Disaster Management & Mizoram University, Sep-7, 2021. # 739
6. Applications of Matrices. Awareness and Scope of mathematics, Shree M P Shah Arts and Science College Surendranagar & C U Shah University Surendranagar, Sep-16, 2021. # 741
7. Patient Flow Optimization during Pandemic. Recent Advances in Statistics & Operations Research - CONIAPS 27, NIT-Sikkim, Oct. 26, 2021. # 743
8. What is impact of Vaccination on Severity of COVID-19? 27th International Conference of International Academy of Physical Sciences on Recent Advances in Mathematical and Computational Optimizations (RAMCO), School of Computational and Integrative Sciences, JNU, New Delhi, Oct. 26-28, 2021. # 746
9. Linear Algebra for Machine Learning. AICTE Training and Learning (ATAL) Academy Sponsored Online One Week Faculty Development Programme on “Emerging Trends in Application of Mathematics", Department of Mathematics Dayananda Sagar College of Engineering, Bengaluru, Dec. 6, 2021. # 732
10. Solution of ODE/PDE using Neural Network. AICTE Training and Learning (ATAL) Academy Sponsored Online One Week Faculty Development Programme on “Emerging Trends in Application of Mathematics", Department of Mathematics, Dayananda Sagar College of Engineering, Bengaluru, Dec. 14, 2021. # 733
11. In Your Story You must be your own HERO. TCS, Dec. 17, 2021. # 747
12. Mathematics from Intuition to Esoterica. National Mathematics Day, Amity Noida, Dec. 22, 2021. # 742
13. Fractional-order Model on Vaccination and Severity of COVID-19. International Conference on Emerging Trends in Mathematical Modeling: Post Pandemic Era, Techno India University, Jan. 7, 2022. # 749
14. Boosting Algorithm for Face Recognition. Role of Artificial Intelligence in Computational Mathematics & Engineering, SRM Institute of Science & Technology, Jan. 10, 2022. # 750
15. Essence of Mathematical Literacy. Gujarat Vigynan Samelan, Jan. 30, 2022. # 752
16. Stackelberg Game and Nash-Equilibrium. Online FDP on “OPTIMIZATION: The OMNIPRESENT”, Motilal Nehru College, University of Delhi, Delhi, Feb. 5, 2022. # 753
17. Transportation Network. National Conference in Emerging Trends in Discrete Mathematics (NCETDM-2022), HNGU in association with Atmiya University, Feb. 18, 2022. # 717
18. Mathematical Model to control Pollution from Medical-waste during COVID-19. International Women's Day, Banasthali University, March 8, 2022. # 760
19. Fractional-Order Model for Diabetes-COVID-19 Fatality and Optimal Control on It. International Conference on "Emerging Trends in Pure and Applied Mathematics, Tezpur University, Mar. 12, 2022. # 761
20. Nature-Inspired Algorithms for Optimization. Prof. P. C. Vaidya National Conference on Mathematical Sciences, SP University, Mar. 15, 2022. # 751
21. Introduction to Quantitative Techniques. “ResearchME 2022” Workshop on Essentials of Research Methodology, IDSR & Department of Biochemistry & Forensic Science, Gujarat University, Apr. 4, 2022. # 763
22. Foundations of Newtonin Mechanics. 2nd Refresher Course in Physics, Department of Physics, Gujarat University, Jun-14, 2022. # 770
23. Oscillations and Waves. 2nd Refresher Course in Physics, Department of Physics, Gujarat University, Jun-14, 2022. # 769
24. Mathematical Model of the Biometric System of Fingerprint. International Conference on Dynamical Systems and Numerical Methods (ICDSNM-22), Department of Mathematics, Jamia Millia Islamia New Delhi, May 20-21, 2022. # 765
25. Mathematical Optimization in Graphics and Vision. Virtual International FDP on "Role of Optimization in Computational Mathematics, Supply Chain Management and Engineering, SRM Institute of Science & Technology, May-23, 2022. # 768
26. Mathematical Model for Transmission of Chlamydia due to Sexual Activity and Unhygienic Environment. Online 2nd International Conference Recent Advances in Computational Mathematics & Engineering, B K Birla Institute of Engineering & Technology, Pilani, May 30-31, 2022. # 772
27. Tactics for Selecting a Research Topic. Academic Writing and Online Resources for Research, Vardhaman College, Bijnor, U.P. Mahatma Hansraj Faculty Development Centre, Jun-30, 2022. # 776

 

Books

1. (With Mandeep Mittal): Soft Computing in Inventory Management, 2021,   ISBN: 978-981-16-2155-0
2. (With Mandeep Mittal & Leopoldo Eduardo Cárdenas-Barrón): Decision Making in Inventory Management, 2021, Springer. ISBN: 978-981-16-1728-7

 

2020-2021

1. (With Monika): Inventory policies for deteriorating items with time-price backlog dependent demand. International Journal of Systems Science: Operations & Logistics, 7 (1), 76-89, 2020. # 516 ISSN: 2330-2674
2. (With Nisha & Ekta): Z - Control on COVID-19-Exposed Patients in Quarantine. International Journal of Differential Equations, Article ID 7876146, 11-pages, 2020 # 649 ISSN:1687-9643
3. (With Moksha & Foram): Control strategies on Pollutants for Clean Environment. Journal of Xidian University, 14 (6), 2914-2935, 2020 # 539 ISSN:1001-2400
4. (With Wakhid Ahmad Jauharia, Niimas Ayu Frensilia Putri Adama, Cucuk Nur Rosyidia, Nyoman Pujawan): A closed-loop supply chain model with rework, waste disposal, and carbon emissions. Operations Research Perspectives, 7,1- 27, 2020 # 606 ISSN: 2214-7160
5. (With Nehal Shukla, Foram Thakkar &Moksha Satia): Simulation Study of H1N1 Transmission through Immigrants and Vaccination. Journal of Advances in Mathematics and Computer Science, 35 (5), 102-120, 2020 # 550 ISSN: 2456-9968
6. (With Dushyant Patel & Digesh Shah): Optimal Carbon Footprints For Chemical Industries Incorporating Trade Credit Under Trended Demand. REVISTA INVESTIGACION OPERACIONAL, 41 (6), 793-803, 2020. # 553 ISSN: 2574306
7. (With Digesh Shah & Dushyant Patel): Economic Order Quantity Model For Price-Sensitive Quadratic Demand With Imperfect Quality Under Inspection. REVISTA INVESTIGACION OPERACIONAL, 41 (6), 844-853, 2020. # 554 ISSN: 2574306
8. (With Ekta Patel & Kavita Rabari): Optimal Ordering Policies under Conditional Trade-Credit for Retailer. REVISTA INVESTIGACION OPERACIONAL, 41 (7), 970-978, 2020. # 617 ISSN: 0257-4306
9. (With Monika K. Naik): Imperfect Inventory Model for Trended Demand under Radio Frequency Identification and Trade Credit. Yugoslav Journal of Operations Research, 30 (4), 499-523, 2020. # 528 ISSN: 2334-6043
10. (With Pratik H. Shah & Milan B. Patel): Inventory Policies with Retailer’s Flexible Payment Time and Customer’s Fixed Credit Time for Manufacturer-Retailer Supply Chain. Economic Computation and Economic Cybernetics Studies and Research, 54 (4), 87-102, 2020. # 621 ISSN: 0424–267X
11. (With Ankush & Ekta J.): Dynamics of malaria-dengue fever and its optimal control. International Journal of Optimization and Control: Theories & Applications, 10 (2), 166-180, 2020. # 568 ISSN: 2146-0957
12. (With Ankush Suthar & Purvi Pandya): Mathematical Modeling for Asthma due to Air Pollution. Journal of Applied Nonlinear Dynamics, 10 (2), 219-228, 2021. # 587 ISSN: 2164-6457
13. (With Ekta & Ankush): Mathematical modeling on investments in burning and recycling of dumped waste by plastic industry. International Journal of Environmental Science and Technology, 17 (3), 741-750, 2021. # 586 ISSN: 1735-1472
14. (With Kavita & Ekta): Dynamic Demand and Pricing Inventory Model for Non-Instantaneous Deteriorating Items. International Journal of Mathematical, Engineering and Management Sciences, 6 (2), 510-521, 2021. # 632 ISSN: 2455-7749
15. (With Pratik H. Shah & Kavita Rabari):  Optimal Inventory Decisions with Advanced Sales for Deteriorating Items. Revista Investigacio´ N Operacional, 42 (1), 97-103, 2021. # 590 ISSN: 0257-4306
16. (With Akanksha): Mathematical modelling of transient heat conduction by Step-Enriched Extended Finite Element Method. GEDRAG & ORGANISATIE REVIEW, 34 (1), 395-412, 2021. # 712 ISSN: 0921-5077
17. (With Milan Patel): Reducing the Deterioration Rate of Inventory through Preservation Technology Investment under Fuzzy and Cloud Fuzzy Environment. Predictive Analytics Modeling and Optimization, CRC-Press, Chapter 4, 65-80, 2021. # 615 ISBN: 978-0-3675-3-7463
18. (With Chetan): Optimal Preservation Technology Investment and Price for the Deteriorating Inventory Model with Price-Sensitivity Stock- Dependent Demand. Predictive Analytics Modeling and Optimization, CRC-Press, Chapter 6, 89-98, 2021. # 419 ISBN: 978-0-3675-3-7463
19. (With Digesh Shah & Dushyant Patel): Optimal Production-Inventory Policies for Processed Fruit Juices Manufacturer and Multi-retailers with Trended Demand and Quality Degradation. Predictive Analytics Modeling and Optimization, CRC-Press, Chapter 8, 113-126, 2021. # 552 ISBN: 978-0-3675-3-7463    
20. (With Kavita Rabari & Ekta Patel): An inventory model with stock-dependent demand under trade-credit policy and fixed life-time. International Journal of Procurement Management, 14 (2), 264-275, 2021. # 596 ISSN: 1753-8432
21. (With Bijal & Zalak): Optimal Control Model for Blindness due to Deficiency of Vitamin-A. Dynamics of Continuous, Discrete and Impulsive Systems Series B: Applications & Algorithms, 28 (4(b)), 279-291, 2021. # 448 ISSN: 1918-2538
22. (With Akanksha): Mathematical Modelling and Computer Simulation of Two Dimensional Steady State Heat Conduction Problem by Extended Finite Element Method. Advances and Applications in Fluid Mechanics, 26 (1), 67-84, 2021. # 696 ISSN: 0973-4686
23. (With Mandeep): Introduction to Compartmental Models in Epidemiology. Mathematical Analysis for Transmission of COVID-19, Chapter 1, 1-20, 2021. # 679 ISBN: 978-981-33-6263-5
24. (With Ankush H. Suthar, Moksha H. Satia, Yash Shah, Nehal Shukla, Jagdish Shukla, and Dhairya Shukla): Modelling the Impact of Nationwide BCG Vaccine Recommendations on COVID-19 Transmission, Severity and Mortality. Mathematical Analysis for Transmission of COVID-19, Chapter 2, 21-37      2021. # 630 ISBN: 978-981-33-6263-5
25. (With Bijal Yeolekar): Transmission Dynamics of Covid-19 from Environment with Red Zone, Orange Zone, Green Zone Using Mathematical Modelling. Mathematical Analysis for Transmission of COVID-19, Chapter 4, 61-76, 2021. # 646 ISBN: 978-981-33-6263-5
26. (With Nisha Sheoran, and Ekta N. Jayswal):   Effective Lockdown and Plasma Therapy for COVID-19. Mathematical Analysis for Transmission of COVID-19, Chapter 7, 125-141, 2021. # 636 ISBN: 978-981-33-6263-5
27. (With Ankit Sikarwar, Ritu Rani and Ankush H. Suthar): Controlling the Transmission of COVID-19 Infection in Indian Districts: A Compartmental Modelling Approach. Mathematical Analysis for Transmission of COVID-19, Chapter 8, 143-160, 2021. # 661 ISBN: 978-981-33-6263-5
28. (With Purvi M. Pandya, and Ekta N. Jayswal): Global Stability Analysis Through Graph Theory for Smartphone Usage During COVID-19 Pandemic. Mathematical Analysis for Transmission of COVID-19. Chapter 15, 295-308, 2021. # 602 ISBN: 978-981-33-6263-5
29. (With Ekta N. Jayswal and Purvi M. Pandya): Bio-waste Management During COVID-19. Mathematical Analysis for Transmission of COVID-19. Chapter 17, 325-336, 2021. # 663 ISBN: 978-981-33-6263-5
30. (With Ekta Patel, Kavita Rabari): Sustainable Vaccine Inventory Model under Carbon Tax policy. Compliance Engineering Journal, 12 (4), 625-635, 2021. # 716 ISSN: 0898-3577
31. (With Ankush H. Suthar, Ekta N. Jayswal and Ankit Sikarwar): Fractional SIR-Model for Estimating Transmission Dynamics of COVID-19 in India. J - Multidisciplinary Scientific Journal, 4, 86-100, 2021. # 683 ISSN: 2571-8800
32. (With Kavita Rabari and Ekta Patel): Manufacturing Inventory Model under Replacement Policy where the Demand is Time-, Price-and Replacement Period Sensitive. Compliance Engineering Journal, 12 (5), 174-185, 2021. # 714 ISSN: 0898-3577
33. (With Ekta Jayswal and Purvi Pandya): Fractional order model for yield through diagnosed/undiagnosed soil. São Paulo Journal of Mathematical Sciences, 15 (1), 392–403, 2021. # 639 ISSN: 1982-6907
34. (With Nisha Sheoran, Ekta Jayswal): Mathematical Model of HBV/HCV Co-Infection. Discontinuity, Nonlinearity, and Complexity, 10 (3), 409-424, 2021. # 604 ISSN: 2164-6376
35. (With Foram A Thakkar & Moksha H. Satia): Center Manifold Theory for Hemorrhage due to High Blood Pressure. Compliance Engineering Journal, 12 (6), 22-39, 2021. # 555 ISSN: 0898-3577
36. (With Ekta N. Jayswal & Ankush H. Suthar): Curtailing Pollution due to Processes on Plastic Disposal. Journal of Environmental Accounting and Management, 9 (4), 331-342, 2021. # 608 ISSN: 2325-6192

Talks

1. Inventory Model for Substitutable Deteriorating Products during COVID-19 under Fuzzy and Cloud Fuzzy Demand Rate. International Faculty Development Program on "Prominence of Mathematics in Diverse Sector", Hindustan College of Engineering and Technology, Coimbatore, Jul-19, 2020 # 652
2. Inventory Policies for Non-instantaneous Deteriorating Items with Preservation technology investment under Price-sensitive Time-dependent demand. Optimization in Inventory Management, Department of Mathematics, Assam University, Silchar, July 25-26, 2020 # 657
3. Inventory Policies for Non-instantaneous Deteriorating Items with Advance Sales, Advertisement Efforts and Effect of Static vs Dynamic Rebate. International Webinar on The Role of Applied Mathematics in Present Global Crises, Vidyasagar University, Aug. 7, 2020 # 664
4. Stochastic Optimization using Soft Computing. SMOSC, Manipal University, Aug. 11, 2020 # 662
5. Principle of Least Action. Department of Physics, Gujarat University, Sep. 5, 2020 # 665
6. Mathematics behind Trip to Neptune. Department of Physics, Gujarat University, Sep. 5, 2020 # 666
7. Inventory Policies under Fuzzy and Cloud Fuzzy Environment. Digital International Conference on Inventory Modeling, Gujarat University, Aug-22, 2020 # 668
8. HIV-TB Co-infection Model. Advances in Mathematical Modeling of Infectious Diseases, Tezpur University, Aug-31, 2020 # 658
9. Recharge Your Group Theory Concepts. Induction Program, Ganpat University, Sep.1, 2020 # 670
10. Frontline Research Topics in Applied Mathematics. Recent Trends in Applied Mathematics, LBSGFGC, Bengaluru, Sep. 3, 2020 # 671
11. Bio-waste Management during COVID-19. International Conference in Nature Inspired Dynamical Systems, Gujarat University, Sep. 12, 2020 # 673
12. (With Bhavin J Shah): Handling Double Whammy in COVID Time: Demand and Supply disruption and Recovery through OR Models. Pre-APORS Conference, Philippines, Sep. 24, 2020 # 669
13. Modeling heat conduction in materials with interfaces using the extended finite element method. Digital International Conference on Advances in Computational Methods, Gujarat University, Ahmedabad, Sep. 26, 2020 # 676
14. Global Stability through Graph Theory for Digital Learning. Digital International Conference on Applied Mathematical Sciences, Parul University, Sep. 26, 2020 # 675
15. Optimal Strategies for Manufacturer- Retailer Inventory System under Discount Dependent Credit Period. Virtual International Conference on Soft Computing Techniques and Cost Optimization for Inventory Modeling, Techno India University, Oct. 10, 2020 # 674
16. Mathematical Model for Domestic Violence during lockdown due to pandemic COVID-19. Mathematical Modelling in the context of Covid-19 and the Global Crisis, National Institute of Technology Agartala, Tripura, Oct. 12, 2020. # 672
17. Numerical Investigations in Engineering. Civil Engineering, Nirma University, Ahmedabad, Oct. 15, 2020. # 677
18. Deterministic inventory models with and without shortages. Guest Lecture, Amity Noida, Oct. 19, 2020. # 688
19. A Lot-Size Model for Price-Stock-Life Time Dependent Demand. Advances in Inventory Control & Supply Chain Management, ORSI - Meerut Chapter, Nov. 8, 2020. # 691
20. Optimal Distribution of Medical Essentials During Pandemic COVID-19 through a Genetic Algorithm. International Webinar on Advances in Operational Research for Optimal Humanosphere, ORSI - Tirupati Chapter, Nov. 21, 2020. # 680
21. Unconstrained Multivariable Optimization. Refresher Course in Mathematics and Statistics at HRDC Indore, Dec. 2, 2020. # 693
22. One Dimensional Minimization/Maximization Problem. Refresher Course in Mathematics and Statistics at HRDC Indore, Dec. 2, 2020. # 694
23. Resuming Air-traffic in Post Pandemic Time. 53rd Annual convention of ORSI and International Conference on Role of Operations Research during Pandemic in Association with ORSN. India & Nepal, Dec. 17-20, 2020. # 687
24. Optimum Controls to Avert Co-infection of Malaria - COVID-19. 26th International Conference of IAPS (online) on Advances in Differential Equations & Mathematical Modelling (IC-ADE-MM-2020). Jawaharlal Nehru University, Dec. 18, 2020. # 685
25. Optimization in Supply Chain of Agriculture Produce. 26th International Conference of International Academy of Physical Sciences (CONIAPS-XXVI) ON Convergence of Computing, Statistics and Operations Research - Empowering Youth For Sustainable Future DECEMBER 18-20, 2020 (ONLINE), Vijayanagara Sri Krishnadevaraya University, Karnataka, Dec. 18, 2020. # 692
26. EPQ model for returned/reworked inventories during imperfect production process in pandemic of COVID-19 for price-stock-dependent demand. 3rd International Conference on Industrial & Mechanical Engineering and Operations Management (IMEOM), Dhaka, Bangladesh, Dec. 26, 2020. # 689
27. Quick Visit of Matrices. D. G Vaishnav College, Chennai, Jan. 30, 2021. # 704
28. Capacitated Multi-period, Multi-echelon Facility Location Problem (CMF) for Vaccine Distribution. 12th Annual Convention of Operational Research Society of Nepal, Nepal, Feb. 2, 2021. # 703
29. Modeling COVID-19 Pandemic and Allocation of Vaccine Distribution. Virtual International Conference on Physical Sciences (ICPS – 2021), SVNIT, Surat, Feb. 5, 2021. # 700
30. Mathematical Model of Post-COVID-19 Dynamics and its Prediction. 2nd International Conference on Mathematical Modeling, Computational Intelligence Techniques and Renewable Energy, PDPU, Gandhinagar, Feb. 6, 2021. # 702
31. Classical Economic Order Quantity Model. Optimization: Theory, Practice & Simulation (OTPS 2021), SVNIT, Surat, Feb. 8, 2021. # 698
32. Compartmental Modelling: An Introduction. Orientation Program for M.Phil., University of Kerala, Feb. 10, 2021. # 706
33. Retailer’s Inventory Decisions with Promotional Efforts and Preservation Technology Investments when Supplier offers Quantity Discounts. International Conference on Sustainable Development: Modelling and Optimization (ICSDMO-2021), ORSI-Meerut Chapter, Feb. 16, 2021. # 701
34. Blue Economy for Maritime. National Conference on Blue Economy: Prospects & Challenges, Techno India University, March 6, 2021. # 702
35. Transmission of Covid-19 and Fighting Against It through Differential Equations. Department of Mathematics, St. Albert's College, Ernakulam, Mar. 18, 2021. # 713
36. Linear Transformations. Department of Mathematics, Integral University, Lucknow, Mar. 20, 2021. # 712
37. Intermediate Value Property Applications and Problems. Department of Mathematics, Indus University, Ahmedabad, May 8, 2021. # 715
38. Fractional Order Second Wave COVID-19 Transmission and its Prediction. Department of Mathematics, Academy of Maritime Education & Training, Chennai, May 12, 2021. # 721
39. Disaster Management to Curtail Supply Chain Disruption due to Restricted Movement During Pandemic COVID-19. Global Summit on Supply Chain Resilience, Techno India University, Kolkata, May 15, 2021. # 718

2019-2020

1. (With Moksha & Foram): Environmental Balance Through Optimal Control on Pollutants. Applications and Applied Mathematics: An International Journal, 14 (1), 399 - 415, 2019. # 546 ISSN: 1932-9466
2. (With V. D. Thakkar & A. K. Desai): Rationale of Single Transferable Voting System. The International journal of analytical and experimental model analysis, 11 (7), 113 – 134, 2019. # 548 ISSN: 0886-9367
3. (With Urmila & Mrudul): Inventory Modelling of Deteriorating Item and Preservation Technology with Advance Payment Scheme Under Quadratic Demand. Optimization and Inventory Management: Springer, Chapter 4, 69-79 # 459 ISBN: 978-981-13-9697-7
4. (With Mrudul & Urmila): Inventory Control Policies for Time-Dependent Deteriorating Item with Variable Demand and Two-Level Order Linked Trade Credit. Optimization and Inventory Management: Springer, Chapter 3, 55-67, 2020. # 538 ISBN: 978-981-13-9697-7
5. (With Chetan): Dynamic Pricing, Advertisement Investment and Replenishment Model for Deteriorating Items. Optimization and Inventory Management: Springer, Chapter 5, 81-92, 2020. # 477 ISBN: 978-981-13-9697-7
6. (With Monika): Inventory Policies with Development Cost for Imperfect Production and Price-Stock Reliability-Dependent Demand. Optimization and Inventory Management: Springer, Chapter 7, 119-136, 2020. # 529 ISBN: 978-981-13-9697-7
7. (With Moksha & Bijal): Global analysis of electronic items with re-manufacturing to control e-waste. International Journal of Environment and Waste Management, 24 (3), 249 – 272, 2019. # 512 ISSN: 1478-9868
8. (With Purvi & Moksha): Global Stability for Divorce in Arrange/Love Marriage due to extra Marital Affair. International Journal of Scientific & Technology Research (IJSTR), 8 (9), 371-376, 2019. # 570 ISSN: 2277-8616
9. (With Moksha & Foram): Effect of Environmental Pollutants on Rain due to Stakeholders. Mathematics in Engineering Sciences: Novel Theories, Technologies, and Applications, Chapter 11, 301-327, 2019. # 537 ISBN: 978-135-12-6631-4
10. (With Monika): Coordinated production, ordering, shipment and pricing model for supplier–retailer inventory system under trade credit. Operations and Research Decisions, 29 (2), 55-76, 2019. # 455 ISSN: 2391-6060
11. (With Ekta, Moksha & Foram): SEIR – Application for Crop Through Water and Soil Texture. Advances in Applied Mathematical Problems, Chapter 8, 179-191, 2019. # 542 ISBN: 978-87-7022-110-8
12. (With Zalak & Bijal): Vertical dynamics of Ebola with media impact. Journal of King Saud University – Science, 31 (4), 567 – 574, 2019. # 482 ISSN: 1018-3647
13. (With Foram & Moksha): Dynamical interaction of supervisor-student towards. International Journal of Applied Systemic Studies, 8 (4), 300 – 314, 2018. # 510 ISSN: 1751-0589
14. (With Akanksha): Numerical Simulation Of Steady State Elliptic Interface By Extended Finite Element Method. Advances and Applications in Fluid Mechanics, 23 (2), 197-214, 2019. # 582 ISSN: 0973-4686
15. (With Ekta N. Jayswal, Moksha H. Satia, Ankush H. Suthar, Foram A. Thakkar): Transmission Intensity And Impact Of Control On Skin Diseases Due To Temperature Change. International Journal of Scientific & Technology Research, 8 (12), 747-753, 2019. # 564 & 569 ISSN: 2277-8616
16. (Urmila & Leopoldo Eduardo Cárdenas-Barrón): Integrating credit and replenishment policies for deteriorating items under quadratic demand in a three echelon supply chain. International Journal of Systems Science: Operations & Logistics, 7 (1), 34 – 46, 2020. # 411 ISSN: 2330-2674
17. (With Akanksha): Mathematical modelling of transient heat conduction by Extended. Journal of Information and Computational Science, 10 (3), 50 – 73, 2020 # 613 ISSN: 1548-7741
18. (With Nisha Sheroan & Yash Shah): Dynamics OF HIV-TB Co-Infection Model, Axioms, 9 (1), 29 – 45, 2020. # 612 ISSN: 2075-1680
19. (With Ankush Suthar & Ekta Jayswal): Effect of Hospitalization for Infectious Transmission of 2019-nCoV. Journal of Xidian University, 14 (3), 584-595, 2020. # 613 ISSN: 1001-2400
20. (With Foram M. Suthar, Moksha H. Satia, Foram A. Thakkar): Mathematical Model for Diabetic to be on Dialysis. International Journal of Scientific & Technology Research, 9 (4), 3684-3688, 2020. # 532 ISSN: 2277-8616
21. (With Ekta Patel and Kavita Rabari): Optimal Default Risk for Price and Credit Sensitive Demand and Fixed Life Time. Journal of Applied Science and Computations, 7 (4), 250-264, 2020. # 603 ISSN: 1076-5131
22. (With Ankush H. Suthar, Ekta N. Jayswal): Dynamics of Crimean-Congo Haemorrhagic fever and its stability. Journal of Applied Science and Computations, 7 (4), 265-284, 2020. # 601 ISSN: 1076-5131
23. (With Ekta Patel & Kavita Rabari): Manufacturer - Retailer Pricing, Payment and Replenishment Strategies with Discount Dependent Credit Period for Price-Stock dependent demand. Journal of Xidian University, 14 (6), 2414-2432, 2020. # 619 ISSN: 1001-2400
24. (With Purvi Pandya, Moksha Satia, Ankush Suthar): Global dynamics of COPD and tuberculosis among smokers. Proyecciones, 39 (2), 383-399, 2020. # 565 ISSN: 0717-6279
25. (With Purvi Pandya, Ekta Jayswal): Optimal Controls to Restrain Pollution Prevailing due to Global Warming on Rain. Journal of Xidian University, 14 ( 5), 1570-1584, 2020.  # 594 ISSN: 1001-2400
26. (With Purvi M. Pandya, Ekta N. Jayswal): Optimal Controls to Restrain Pollution Prevailing due to Global Warming on Rain. Journal of Xidian University, 14(5), 1570-1584, 2020. # 594 ISSN: 1001-2400
27. (With Ankush Suthar & Purvi Pandya): Controlling Asthma Due to Air Pollution. Mathematical Models of Infectious Diseases and Social Issues, Chapter 1, igi-global, 2-22, 2020. # 591 ISBN: 978-1-7998-3742-8
28. (With Purvi Pandya, Ekta Jayswal & Yash Shah): Spread of Tuberculosis Among Smokers: A Mathematical Model. Mathematical Models of Infectious Diseases and Social Issues, Chapter 3, igi-global, 49-73, 2020. # 589 ISBN: 978-1-7998-3742-8
29. (With Nisha Sheoran & Moksha Satia): Stability Analysis of Co-Infection of Malaria-Dengue. Mathematical Models of Infectious Diseases and Social Issues, Chapter 7, igi-global, 138-177, 2020. # 597 ISBN: 978-1-7998-3742-8
30. (With Ekta Jayswal & Purvi Pandya): Fractional-Order Model to Visualize the Effect of Plastic Pollution on Rain. Mathematical Models of Infectious Diseases and Social Issues, Chapter 8, igi-global, 178-195, 2020. # 592 ISBN: 978-1-7998-3742-8
31. (With Moksha Satia): Transmission of Water and Food Waste in Aquaponic Systems. Mathematical Models of Infectious Diseases and Social Issues, Chapter 10, igi-global, 216-245, 2020. # 598 ISBN: 978-1-7998-3742-10
32. (With Zalak Patel): Vertical Transmission of Syphilis with Control Treatment. Mathematical Models of Infectious Diseases and Social Issues, Chapter 11, igi-global, 216-245, 2020. # 598 ISBN: 978-1-7998-3742-11
33. Bijal & Zalak Mathematical Model to Analyze Effect of Demonetization. Mathematical Models of Infectious Diseases and Social Issues, Chapter 12, igi-global, 270-308, 2020. # 487.            ISBN: 978-1-7998-3742-12
34. (With Ankush & Ekta): Dynamics of malaria-dengue fever and its optimal control. International Journal of Optimization and Control: Theories & Applications, 10 (2),166-180, 2020. # 568 ISSN: 2146-0957
35. (With Akanksha): Existence and multiplicity of solutions for Nonlocal elliptic problem involving p􀀀biharmonic operator and concave-convex nonlinearities. Gedrag & organisatie review, 11 (2), 2088-2094, 2020. # 648 ISSN: 0921-5077

Talk:

1. Problem Solving in Linear Algebra. UGC-NET Workshop, Gujarat College, Aug. 31, 2019. # 593
2. Disaster Management to Curtail Supply Chain Disruption due to Flood. MTMI ORLANDO Conference, Orlando, Sep-21, 2019. # 581
3. Modelling Epidemics through ER – Graph. Recent Advancements in Graph Theory RAGT-2019, Department of Mathematics, Gujarat University, Ahmedabad, Nov. 9, 2019. # 588
4. Large Scale Optimization, ORSI-2019 Annual Convention and International Conference on Practice of Management Science & Analytics, IIM-A, Dec. 16-18, 2019. # 584
5. Fractional Order Differential Calculus in Modelling of Viscoelastic Systems. STTP, LDCE, Dec. 19, 2019. # 609
6. Control Strategies to Curtail Transmission of COVID-19, Webinar, Amity University, Noida, April 15, 2020. # 625
7. Social Distancing to break COVID-19 Transmission Chain, Webinar, Parul University, Baroda, April 25, 2020. # 628
8. Comparative Study of Three Countries for Transmission of COVID-19 through Asymptomatic Individuals. International Webinar on Mathematical Modelling and Multidisciplinary Mathematics, IITE, Gandhinagar, May 2, 2020. # 634
9. Modelling the Impact of Nationwide BCG Vaccine Recommendations on COVID-19 Transmission, Severity, and Mortality. Mathematics Webinar, SRM University, Sonapat, May 11, 2020. # 514
10. Modelling the Impact of Plasma Therapy and Immunotherapy for Recovery of COVID-19 Infected Individuals. "Abhivyakti Webinar on ""Recent Perspective of Science in Line of COVID-19 Pandemic", GU, Ahmedabad, May 18, 2020. # 641
11. Social Distancing in Lockdown 4.0 to control Spread of COVID-19. Webinar, Jaypee Institute of Information Technology, Noida, May 20, 2020. # 642
12. Effective Lockdown and Plasma Therapy for COVID-19. Webinar – Mathematics, Ganpat University, May 24, 2020. # 643
13. COVID-19 transmission of zones. Webinar – Mathematics, Dayananda Sagar College of Engineering, Bangalore, June 7, 2020. # 645
14. Positive Impact of Lockdown due to COVID-19 on Pollution. Webinar - Applications of Mathematics and Contemporary use of its Scientific & Technical Terminology in Hindi, Jawaharlal Nehru University, Jun 14, 2020. # 654

2018-2019

1. (With Monika Naik): Inventory model for non-instantaneous deterioration and price-sensitive trended demand with learning effects. International Journal of Inventory Research, 5 (1), 60 – 77, 2018. # 483 ISSN: 1746-6970
2. (With V. D. Thakkar): Iterative matching of DNA sequence. Mathematics Today, 34 (A), 163 – 173, 2018. # 508 ISSN: 0976-3228
3. (With Foram & Bijal): Optimal control for switching on/off between two major parties. International Journal of Advanced and Innovative Research, 7 (5), 2018. # 496 ISSN: 2278-8744
4. (With Dushyant & Digesh): EPQ model for returned/reworked inventories during imperfect production process under price-sensitive stock-dependent demand. Operational Research International Journal, 18, 343 – 359, 2018. # 381 ISSN: 1866-1505
5. (With Urmila & Mrudul): Optimal policies for time-varying deteriorating item with preservation technology under selling price and trade credit dependent quadratic demand in a supply chain. International Journal of Applied and Computational Mathematics, 3 (2), 363 – 379, 2017. # 422 ISSN: 2349-5103
6. (With Monika Naik): Inventory Policies for Deteriorating Items under Stock-Dependent Demand with Variable Holding Cost. International Journal of Applied Engineering Research, 13 (12), 10435-10448, 2018. # 530 ISSN: 0973-4562
7. (With Mrudul & Urmila): Inventory policies for maximum fixed life-time product with quadratic demand under permissible delay in payments for a single supplier-two retailers. International Journal of Business Performance and Supply Chain Modelling, 10 (1), 33 – 48, 2018. # 462 ISSN: 1758-9401
8. (With Moksha & Foram): Bifurcation and Stability Analysis for Environmental Pollutants through Three-layered Population and Rain. International Journal of Computational Engineering and Management, 21 (5), 17 – 28, 2018. # 534 ISSN: 2230 – 7893
9. (With Urmila & Mrudul): Optimum inventory control for imperfect quality item with maximum lifetime under Quadratic demand and Preservation Technology Investment. International Journal of Applied Engineering Research, 13 (16), 12475 - 12485, 2018. # 461 ISSN: 0973-4562
10. (With Shivani, Foram & Moksha): Dynamics of Curtailing Obesity. Advanced Modeling and Optimization: An Electronic International Journal, 20 (2), 407 – 418, 2018. # 518 ISSN: 1841-4311
11. (With Monika): Inventory policies for price-sensitive stock-dependent demand and quantity discounts. International Journal of Mathematical, Engineering and Management Sciences, 3 (3), 247 – 257, 2018. # 488 ISSN: 2455-7749
12. (With VDT, Foram & Moksha): Quantification of Cardiac Arrest among Beauty Conscious Individuals. International Journal of Computational Engineering and Research, 8 (8), 33 – 39, 2018. # 533 ISSN: 2250 –3005
13. (With Shreya, Foram & Moksha): Optimal control for transmission of water pollutants. International Journal of Mathematics, Engineering Technology and Management Sciences, 3 (4), 381 – 391, 2018. # 521 ISSN: 2455-7749
14. (With Milan, Foram & Moksha): Mathematical Model for contesting party workers. Journal of Computer and Mathematical Sciences, 9 (5), 342 – 352, 2018. # 527 ISSN: 2319-8133
15. (With Mrudul & Urmila): EPQ model for deteriorating items with quadratic demand, dynamic production rate and production time dependent selling price: A Risk analysis approach. International Journal of Supply Chain Management, 7 (4), 377 – 385, 2018. # 452 ISSN: 2050-7399
16. (With Chetan): Retailer's optimal pricing and replenishment policy for new product and optimal take-back quantity of used product. Yugoslav Journal of Operations Research, 28 (3), 343 – 353, 2018. # 492 ISSN: 0354-0243
17. (With Jaydev, Foram & Moksha): Mathematical model for impact of media on cleanliness drive in India. Mathematical Journal of Interdisciplinary Sciences, 7 (1), 29 – 36, 2018. # 541 ISSN: 2278-9561
18. (With Shivani, Foram & Moksha): Mathematical Model of Infertility Due to Obesity in Female. Journal of New Theory, 25 (1), 38 – 49, 2018. # 517 ISSN: 2149-1402
19. (With Urmila & Mrudul): Impact of Advertisement on Retailer's Inventory with Non-(instantaneous Deterioration under Price-sensitive Quadratic Demand. TWMS Journal of Pure and Applied Mathematics, 9 (2), 159 – 172, 2018. # 438 ISSN: 2076-2585
20. (With Monika): Fresh Produce Inventory for Time-Price and Stock Dependent Demand. Revista Investigacion Operacional, 39 (4), 515 – 527, 2018. # 515 ISSN: 0257-4306
21. (With Niketa, Foram & Moksha) : Control Strategies for Nipah Virus. International Journal of Applied Engineering Research, 13 (21), 15149-1516, 2018. # 547 ISSN: 0973-4562
22. (With Ankush, Moksha & Foram): SEI-Model for transmission of Nipah Virus. Journal of Mathematical and Computational Sciences, 8 (6), 714 – 730, 2018. # 551 ISSN: 1927-5307
23. (With Viral, Moksha & Foram): Mathematical Analysis for Unemployment Issue even after Post-Graduation. Mathematics Today, 34, 25 – 34, 2018. # 526 ISSN: 0976 - 3228
24. (With Nehal, Foram & Moksha): Optimal control of HCV transmission under liquoring. Journal of Theoretical Biology, 465, 27 – 33, 2019. # 549 ISSN: 0022-5193
25. (With Urmila & Mrudul): Inventory Control Policies for substitutable deteriorating Items Under Quadratic Demand. Operations and Supply Chain Management, 12 (1), 42 – 48, 2019. # 453 ISSN: 1979 – 3561
26. (With Monika): Optimal replenishment and pricing policies for deteriorating items with quadratic demand under trade credit, quantity discounts and cash discounts. Uncertain Supply Chain Management, 7 (3), 439 – 456, 2019. # 513 ISSN: 2291-6830
27. (With Ekta Patel): Free and Forced Vibrations by Finite Element Method. International Journal of Applied Engineering Research, 14 (2), 369 – 372, 2019. # 577 ISSN: 0973-4562
28. (With V. D. Thakkar, Moksha & Foram): Global Stability of Diabetic Children with Electronic Gadgets using Lypaunov Function. Journal of Mathematical & Computational Sciences, 9 (2), 194 – 205, 2019. # 571 ISSN: 1927-5307
29. (With Purvi, Foram & Moksha): Mathematical Modeling for Hospitalization due to Temperature Variations. International Journal of Mathematical, Engineering and Management Sciences, 4 (2), 361 – 374. 2019. # 561 ISSN: 2455-7749
30. (With Urmila & Mrudul): Optimal control analysis for service, inventory and preservation technology investment. International Journal of Systems Science: Operations & Logistics, 6 (2), 130 – 142, 2019. # 446 ISSN: 2330-2674
31. (With Ekta, Moksha & Akanksha): Finite Element Scheme for Steady Seepage Water Flow in Valley. Journal of Applied Sciences and Computations, 6 (3), 1039 – 1044, 2019. # 576 ISSN: 1076-5131
32. (With Ankush & Moksha): Stability analysis of effect of vaccination in the transmission of swine flu. International Journal of Computational Engineering Research, 9 (3), 25 – 34, 2019. # 573 ISSN: 2250-3005
33. (With Urmila & Mrudul): Effect of manufacturer’s innovation and retailer’s promotion under trapezoidal demand with centralized and decentralized options. TOP, 27 (1), 55 – 69, 2019. # 536 ISSN: 1134-5764
34. (With Ekta, Moksha & Foram): Stability analysis of crop due to soil and water. International Journal of Advance and Innovative Research, 6 (2 X), 61 – 72, 2019. # 545 ISSN: 2394-7780
35. (With Akanksha): Mathematical modelling of Nonlinear Mass Diffusion Problem by Extented Finite Element Method. Journal of Applied Science and Computations, 6 (5), 559 – 567, 2019. # 585
36. (With Ekta & Moksha): Optimal investments for burning and recycling of plastics. Advances in Water and Environmental Engineering, 1 (1), 1 – 9, 2019. # 579
37. (With Purvi & Ankush): Curtailing severity of the depression due to social pressure by medication. Advances in Mathematical Sciences, 1 (1), 1 – 4, 2019. # 580

Talks

1. Network Topology for Communication. Research Meet for Mathematicians, Parul University, Baroda, Dec. 6, 2018. # 567
2. Center Manifold Theory for Hemorrhage due to High Blood Pressure. International Conference on Numerical Analysis, Computing & Applications in Science, Engineering & Technology, Mohandas Engineering College, Thiruvanatahapuram, Dec. 17 – 18. 2018. # 555
3. Various Contracts in Furniture’s Supply Chain under Price and Sales Effort Sensitive Demand. Emerging Trends in Inventory, Supply Chain & Reliability Modeling, Department of OR, University of Delhi, Delhi, Dec. 21 – 23, 2018. # 557
4. Applications of Soft Computing Techniques. Prof. P. C. Vaidya National Conference on Mathematical Sciences, St. Xavier’s College, Ahmedabad, Dec. 25, 2018. # 566
5. Z-type control on Skin Malignancy due to U-V Rays. International Conference on Indo-Canadian Multidisciplinary Research: Trends and Prospects, IITRAM, Dec. 28, 2018. # 560
6. Matices Helping to solve Real Problems. Integral University, Lucknow, March 18, 2019. # 574
7. Transmission of Swine flu with Migration. Modeling, Optimization and Computing for Technology and Sustainable Development, SRM-IST, Ghaziabad, April 27, 2019. # 578

Book:

1. (With Foram): Mathematical Analysis of Transmission of Social and Health Issues. Lambart Academic Publishers, Germany. ISBN: 978-613-9-98693-4
2. (With Mrudul): Inventory Policies for Deteriorating items under different demand. Lambart Academic Publishers, Germany. ISBN: 978-620-0-11670-3
3. (With Urmila): Supply chain inventory modelling for different payment options. Lambart Academic Publishers, Germany. ISBN: 978-620-0-11631-4

2017-2018

1. (with Urmila & Mrudul): Inventory model with expiration date of items and deterioration under two-level trade credit and preservation technology investment for time and price sensitive demand: DCF approach. International Journal of Logistic Systems and Management, 27 (4), 420 – 437, 2017. # 432 ISSN: 0974-7206
2. (with Foram & Bijal): Mathematical analysis of a motivated stage artist to be a film artist. Advances in Dynamical Systems and Applications, 12 (2), 163 -180, 2017. # 486 ISSN: 0973-5321
3. (with Mrudul & Urmila): Retailer’s optimal policies for price-credit dependent trapezoidal demand under two-level trade credit. International Journal of Operations and Quantitative Management, 23 (2), 115 – 130, 2017. # 421 ISSN: 1082-1910
4. (with Mahesh Yeolekar): Influence of mass and length of biped robot  on its passive walking. International Journal of Applied Nonlinear Science, 2 (4), 235 – 246, 2017. # 404 ISSN: 1752-2862
5. (with Zalak & Bijal): Threshold for vaccination in measles and its vertical transmission. International Journal of Dynamical Systems and Differential Equation, 7 (2), 157 – 168, 2017. # 445 ISSN: 1732-3591
6. (with Bijal & Zalak): Epidemics of corruption Using Incidence Function. Economic Computation and Economic Cybernetics Studies and Research, 51 (2), 165 – 180, 2017. # 444 ISSN: 1842–3264
7. (with Moksha & Bijal): Optimal control on depletion of green belt due to industries. Advances in Dynamical Systems and Applications, 12 (3), 217 -232, 2017. # 491 ISSN: 0973-5321
8. (with Chetansinh): Retailer’s Replenishment and Pricing Decisions for Non-Instantaneous Deterioration and Price-Dependent Demand. International Journal of Industrial Engineering & Production Research, 28 (2), 101 – 111, 2017. # 450 ISSN: 2008-4889
9. (with Mrudul): Economic Order Quantity Model for Non-Instantaneously Deteriorating Items under Order-Size-Dependent Trade Credit. Modelling, Measurement and Control Series D. Production Engineering and Management, 37 (1), 1 – 19, 2016. # 409 ISSN: 1240-4551
10. (With Bijal & Zalak): Dynamics of value-added life through education with control on malpractices. Aryabhatta Journal of Mathematics and Informatics, 9 (2), 185 – 200, 2017. # 464 ISSN: 0975-7139
11. (With Foram & Bijal): Optimal control model for poor nutrition in life cycle, Dynamics of Continuous, Discrete and Impulsive Systems Series B: Applications & Algorithms, 24 (5), 387 – 400, 2017. # 480 ISSN: 1492-8760
12. (With Urmila & Mrudul): Supply chain inventory model for multi-items with up-stream permissible delay under price sensitive quadratic demand. Investigacion Operacional, 38 (5), 492 – 509, 2017. # 443 ISSN: 0257-4306
13. (With Zalak & Bijal): Cogenital transmission of Chagas with control dropouts and spraying. International Journal on Applied and Computational Mathematics, 3 (1), 185 – 201, 2017. # 456 ISSN: 2349-5103
14. (With Mrudul & Urmila): Optimal replenishment time for retailer under partial upstream prepayment and partial downstream overdue payment for quadratic demand. Mathematical and Computer Modelling of Dynamical Systems, 24 (1), 1 – 11, 2017. # 431 ISSN: 1387-3954
15. (With Monika Naik): Dynamic selling price and advertisement investment for deteriorating inventory with stock-dependent demand. AMO – Advanced Modeling and Optimization, 19 (2), 339 – 362, 2017. # 493 ISSN: 1841-4311
16. (With Foram & Bijal): Simulation of Dengue Disease with Control. International Journal of Scientific and Innovative Mathematical Research (IJSIMR), 5 (7), 14 – 28, 2017. # 503 ISSN: 2347-307X
17. (With Foram & Bijal): Mathematical Model for Curbing Liquor Habit through Rehabilitation. AMO – Advanced Modeling and Optimization, 19 (2), 371 – 386, 2017. # 493 ISSN: 1841-4311
18. (With Foram & Bijal): Stability Analysis of Tuberculosis Due to Smoking. International Journal of Innovative Science and Research Technology, 3 (1), 230 – 237, 2018. # 507 ISSN: 2456 –2165
19. (With Foram & Bijal): Modelling Liquor Transmission: Curtail through Optimal Modelling Liquor Transmission: Curtail through Optimal Modelling Liquor Transmission: Curtail through Optimal Modelling. International Journal of Computational Engineering & Management, 21 (1), 17 – 27, 2018. # 511 ISSN: 2230-7893
20. (With Mrudul & Urmila): Optimal ordering policy for deteriorating items under down-stream trade credit dependent quadratic demand with full up-stream trade credit and partial down-stream trade. International Journal of Mathematics in Operational Research, 12 (3), 378 – 396, 2018. # 442 ISSN: 1757-5869
21. (With Foram & Bijal): Stability of ‘GO-CLEAN’ Model through Graphs.  Journal of Computer and Mathematical Sciences, 9 (2), 79-93, 2018. # 501 ISSN: 0976-5727
22. (With Chetan): Imperfect production inventory model for time and effort dependent demand under inflation and maximum reliability. International Journal of Systems Science: Operations & Logistics, 5 (1), 60 – 68, 2018. # 433 ISSN: 2330-2674
23. (With Dushyant and Digesh): Optimal Credit Period and Lot-Size for Deteriorating Items With Fixed Life Time and Trade Credits. Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques, Chapter 3, 44-47, 2018. # 383 ISBN13: 9781522532323
24. (With Monika): Dynamic Pricing and Ordering Policies With Quality and Physical Deterioration Under Quadratic. Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques, Chapter 7, 107-122, 2018. # 470 ISBN13: 9781522532323
25. (With Urmial and Mrudul): Setting Two-Tiered Price for Non-Instantaneous Deterioration: Price-Sensitive Quadratic demand. Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques, Chapter 8, 123-140, 2018. # 472 ISBN13: 9781522532323
26. (With Chetan): Vendor-Buyer Supply Chain Models With Supplier Default Risk Under Selling Price and Trade Credit Period Dependent Demand. Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques, Chapter 10, 156-173, 2018. # 457 ISBN13: 9781522532323
27. (With Mrudul & Urmila): Inventory Control Policies for Deteriorating Item With Preservation Technology, Quadratic Demand, and Trade Credit for a Single Supplier-Two Retailers Supply Chain: A Centralization vs. Decentralization Approach. Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques, Chapter 11, 174-193, 2018. # 471 ISBN13: 9781522532323
28. (With Gede & Daniel): Stackcelberg Game Inventory Model With Progressive Permissible Delay of Payment Scheme. Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques, Chapter 12, 194-214, 2018. # 393 ISBN13: 9781522532323
29. (With Isha & Sarla): Collaboration of Single-Manufacturer Multi-Buyer Inventory Status With Credit Option Under Fuzzy Demand. Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques, Chapter 15, 250-283, 2018. # 393 ISBN13: 9781522532323
30. (With Monika Naik): EOQ model for deteriorating item under full advance payment availing of discount when demand is price-sensitive. International Journal of Supply Chain and Operations Resilience, 3 (2), 163 – 197, 2018. # 498 ISSN: 2052-868X
31. (With Chetan): An EPQ model for deteriorating items with price dependent demand and two level trade credit financing. Revista Investigacion Operacional, 39 (2), 170 – 180, 2018. # 439 ISSN: 0257-4306
32. (With Moksha & Foram): Mathematical approach on household waste causing environmental pollutants due to landfill and treatments. International Journal of Engineering Technology and Management Research, 5 (2), 266 – 282, 2018. # 519 ISSN: 2454-1907
33. (With Moksha & Bijal): Stability of Waste Paper Recycling through Graph Theory. Journal of New Theory, 22, 1 – 21, 2018. # 506 ISSN: 2149-1402
34. (With

Talks

1. Congenital Transmission of Chagas with Control Dropouts and Spraying. NDS-2017, July 6- 8, 2017, San Francisco, USA. # 495
2. Fuzzy Statistics and Future Trends. International Virtual Conference (IVC-2017), Aug. 6 – 10, 2017, UP. # 499
3. Cricket Team Selection Using Simplex Method. National Workshop on "Operations Research and Recent Trends", Aug. 19, 2017, B. M. College, Imphal. # 500
4. Dynamical System of Demonetization. National Workshop on "Operations Research and Recent Trends", Aug. 19, 2017, B. M. College, Imphal. # 502
5. Mathematics of Cancer tumor growth. GAMS: International Conference, Dec. 22, 2017, Ganpat University, Ganpat. # 509
6. EPQ model with variable fuel price. International Conference RTORS2017, Dec 29, 2017, IIT Roorkee. # 504
7. Introduction to Optimization. National Workshop on "Statistical Modeling and Optimization Using R software", IITREM, Feb 1, 2018. # 523
8. Advanced techniques for Optimization. National Workshop on "Statistical Modeling and Optimization Using R software", IITREM, Feb 1, 2018. # 524
9. Tsunami Modelling. National Conference on Applied Mathematical Sciences, GU, April 14, 2018. # 535

 

 

2016-2017

 

1. (With Urmila Chaudhari & Mrudul Jani): An integrated production-inventory model with preservation technology investment for time-varying deteriorating item under time and price sensitive demand. International Journal of Inventory Research, 3 (1), 81 – 98, 2016. # 418 ISSN: 1746-6970
2. (With Bijal Yeolekar, Urmila Chaudhari & Jyoti Gupta): Analysis of Effect of Environmental Discharge and Awareness Programs on Japanese Encephalitis Spread using Mathematical Modeling and Simulation. Chapter 4, Models and Methods for Supporting Decision-Making in Human Health and Environment Protection, 2016. # 400 ISBN: 978-1-63485-202-9
3. (With Zalak Patel & Bijal Yeolekar): Modeling vertical transmission of hepatitis B virus under treatment and Alcoholic habits. DCDIS – B, 23 (5b), 301 – 329, 2016. # 434 ISSN: 1918-2538
4. Retailer's optimal policies for deteriorating items with a fixed life-time under order-linked conditional trade credit. Uncertain Supply Chain Management, 5 (1), 126 – 134, 2017. # 436 ISSN: 2291-6830
5. (With Foram Thakkar & Bijal Yeolekar): dynamics of parking habits with punishment: An application of SEIR model. Journal of Basic and Applied Research International, 19 (3), 168 – 174, 2016. # 454 ISSN: 2395-3438
6. (With Aziz, Takasar, Umara, Muhammad): Qualitative behavior of pine wilt disease model. Journal of Basic and Applied Research International, 19 (3), 206 – 218, 2016. # 451 ISSN: 2395-3438
7. (With Urmila and O. K. Gupta): Two-layered supply chain with quadratic demand and preservation technology investment for time dependent deteriorating item with fixed-life. Advanced Modeling and Optimization: An Electronic International Journal, 18 (2), 285 – 299, 2016. # 417 ISSN: 1841-4311
8. (With Mrudul and Urmila): study of imperfect manufacturing system with preservation technology investment under inflationary environment for quadratic demand: a reverse logistic approach. Journal of Advanced Manufacturing Systems, 16 (1), 17 – 34, 2017. # 437 ISSN: 1793-6896 DOI: 10.1142/S0219686717500020
9. Joint Decision for Price Competitive Inventory Model with Time-Price and Credit Period Dependent Demand. Handbook of Research on Advanced data mining techniques and applications for business intelligence, Chapter 20, 341 – 352, 2017. # 420 ISSN: 2327 – 3275. Editors: Shrawan Kumar Trivedi et al.
10. (With Chetan): Economic order quantity for deteriorating items under inflation with time and advertisement dependent demand. OPSEARCH, 54 (1), 168 – 180, 2017. # 423 ISSN: 0030 – 3887
11. (With Foram & Bijal): Mathematical analysis of optimal control theory on underweight. Advances in Research, 8 (5), 1 –11, 2017. # 465 ISSN: 2348 – 0394
12. (With Zalak and Bijal): Preventions and controls on congenital transmissions of Zika: Mathematical analysis, Applied Mathematics, 8, 500 – 519, 2017. # 458 ISSN: 2152 -7393
13. Three-layered integrated inventory model for deteriorating items with quadratic demand and two level trade credit financing. International Journal of Systems Science: Operations Research & Logistics, 4 (2), 85 – 91, 2017. # 392 ISSN: 2330-2682
14. (With Moksha & Bijal): Optimum control for spread of pollutants through forest resources, Applied Mathematics, 8, 607 – 620, 2017. # 481 ISSN: 2152 -7393

 

Talks

1. Duality in LPP. Video Lecture, EMRC, Gujarat University, Aug. 11, 2016. # 428
2. Differential Equations. Video Lecture, EMRC, Gujarat University, Aug. 11, 2016. # 441
3. Collaboration as an academic investment. Symposium on “Excellence in Research – 2016”, 31st National Convention of IAPT, Kadi Serva Vidhayalaya, Gandhinaga, Oct. 20, 2016. # 463
4. Solution of Difference equations. Video Lecture, EMRC, Gujarat University, Nov. 8, 2016. # 468
5. Optimal Control Model for Memory Loss due to Deficiency of Sodium. National Seminar on "Mathematics and its Applications, PDPU, Gandhinagar, Nov. 19, 2016. # 473
6. Epidemics of Malpractice Using Incidence Function. Innovation and Recent Trends in Bio-Mathematics and Statistics Education, Banasthali University, Nov. 21, 2016. # 474
7. Mathematical Models through partial differential equation. Innovation and Recent Trends in Bio-Mathematics and Statistics Education, Banasthali University, Nov. 21, 2016. # 475
8. Mechanics of carbon nanotubes: Mathematical Model. Refresher course on NanoTechnology, GU, Ahmedabad, Nov. 25, 2016. # 476
9. Constrained optimization. Video Lecture, EMRC, Gujarat University, Jan. 10, 2017. # 427
10. Partial Differentiation. Video Lecture, EMRC, Gujarat University, Jan. 11, 2017. # 478
11. Partial Differentiation of functions of function and Implicit function. Video Lecture, EMRC, Gujarat University, Jan 11, 2017. # 479
12. Climate Variability and the Dynamics of Infectious Diseases: Mathematical Analysis. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. # 469
13. Concept of Convexity/Concavity. Video Lecture, EMRC, Gujarat University, Feb 7 2017. # 396
14. P – Graph modelling. National Conference in Analysis, Algebra and Graph Theory (NCAAG – 2017), Saurashtra University, Feb. 10, 2017. # 396
15. Graph theory and its application. Ph.D. course work, MHRD, Gujarat University, Feb. 21, 2017. # 489

Presentations

1. (Bijal M. Yeolekar): Dynamics of parking habits with punishment: An application of SEIR model. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. #
2. (Dushyant G. Patel): EPQ model for Returned/Reworked inventories during imperfect production process under price-sensitive stock-dependent demand. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. # 383
3. (Urmila Chaudhari): Inventory modeling of deteriorating item and preservation technology with advance payment scheme under quadratic demand. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. #
4. (Mrudul Jani): EPQ model for deteriorating items with quadratic demand, dynamic production rate and production time dependent selling price: a risk analysis approach. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. #
5. (Chetansinh Vaghela): Retailer’s replenishment and pricing decisions for non-instantaneous deterioration and price-dependent demand. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. #
6. (Monica K. Naik): Coordinated production, ordering, shipment and pricing model for supplier-retailer inventory system under trade credit. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. #
7. (Mahesh Yeolekar): Study of basin of attraction of passive dynamic kneed biped robot. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. #
8. (Zalak A. Patel): Congenital transmission of chagas with control dropouts and spraying. International Conference in Computational Mathematics and Statistics, Banasthali University, Jan. 24-26, 2017. #

MONOGRAPH

1. (With Nidhi Raykundaliya): Optimal ordering policy for inventory system in demand declining market. Lambart Academic Publishing, Germany. ISBN: 978 – 3- 659 – 95102 – 2.

 

2015 - 2016

1. (With Mrudul Y. Jani & Digesh B. Shah): Economic order quantity model under trade credit and customer returns for price-sensitive quadratic demand. Revista Investigacion Operacional, 36 (3), 240 – 248, 2015. # 398 ISSN: 0257-4306
2. (With Bijal Yeolekar & Nehal Shukla): Liquor habit transmission model. Applied Mathematics, 6 (8), 1208 – 1213, 2015. # 408 ISSN: 2152-7393 doi: http://dx.doi.org/10.4236/1m.2015.68112
3. Three-layered integrated inventory model for deteriorating items with quadratic demand and two level trade credit financing. International Journal of Systems Science: Operations & Logistics. Aug. 11, 2015 # 392 ISSN: 2330 – 2682 http://dx.doi.org/10.1080/23302674.2015.1075078
4. (With Poonam & Anirbid Sircar): Hydrocarbon production optimization: Theory and Practices. Advances in Petroleum Engineering: Petrochemical – II, 4, 211 – 238, 2015. Studium Press, LLC, USA # 354 ISBN: 1 – 62699 – 043 – 3
5. (With Urmila Chaudhari): Optimal policies for three players with fixed life time and two-level trade credit for time and credit dependent demand. Advances in Industrial Engineering, 4 (1), 89 – 100, 2015. # 412 ISSN: 2222-7067 doi:10.7508/aiem.2015.01.009
6. (With Digesh Shah & Dushyant Patel): Optimal transfer, ordering and payment policies for joint supplier-buyer inventory model with price-sensitive trapezoidal demand and net credit. International Journal of Systems Science, 46 (10), 1752-1761, 2015. # 331  ISSN: 1464-5319 doi: 10.1080/00207721.2013.835000 IF: 1.579
7. (With Bhavin J. Shah & Rohit Kapoor): A simulation- and genetic algorithm-based optimisation of closed-loop multi-echelon inventory system. International Journal of Mathematics in Operational Research, 8 (1), 28 – 59, 2016. # 384 ISSN: 1757-5869
8. (With Digesh Shah & Dushyant Patel): EPQ model for imperfect production processes with rework and random preventive machine time for deteriorating items and trended demand. Yugoslav Journal of Operations Research, 25 (3), 425-443, 2015. # 349 ISSN: 2374-6043 doi: 10.2298/YJOR130608019S
9. (With Digesh Shah & Dushyant Patel): Optimal credit period and ordering quantity for credit dependent trended demand and deteriorating items with maximum lifetime. Control & Cybernetics, 14 (2), 311 – 320, 2015. # 371 ISSN: 0324-8569
10. (With Bijal Yeolekar and Nehal Shukla): SEI - model for social messages. Journal of Basic and Applied Research International, 14 (2), 81 – 89, 2016. # 413 ISSN: 2395-3446
11. (With Urmial and Mrudul): Optimal down-stream credit period and replenishment time for a supply chain. Journal of Basic and Applied Research International, 14 (2), 101 – 115, 2016. # 407 ISSN: 2395-3446
12. (With Mahesh Yeolekar): Stability analysis for walking of passive dynamic biped robot. Journal of Basic and Applied Research International, 15 (3), 153 – 161, 2016. # 399 ISSN: 2395-3446
13. (With Mrudul Jani): Impact of future price increase on ordering policies for deteriorating items under quadratic demand. International Journal of Industrial Engineering Computations, 7 (3), 423 – 436, 2016. ISSN: 1923-2926 doi:10.5267/j.ijec.2015.12.006
14. (With Isha and Sarla Pareek): Deteriorating inventory model under permissible delay in payments and fuzzy environment. Chapter 5, Optimal Inventory Control and Management Techniques, 77 – 99, 2016. # 302 ISBN: 978-1-4666-9889-5
15. (With Mrudul): Optimal Ordering for Deteriorating Items of Fixed-Life with Quadratic Demand and Two-Level Trade Credit. Chapter 1, Optimal Inventory Control and Management Techniques, 1 – 16, 2016. # 405 ISBN: 978-1-4666-9889-5
16. (With Digesh and Dushyant): Lot Size Model for Reverse Logistics with Quadratic Demand. Chapter 2, Optimal Inventory Control and Management Techniques, 17 – 30, 2016. # 380 ISBN: 978-1-4666-9889-5
17. (With Zalak and Bijal): Stability analysis of vertival transmission of HIV with delays in treatment and pre-AIDS. Journal of Basic and Applied Research International, 17 (2), 88 – 102, 2016. # 424 ISSN: 2395 – 3446

Talks

1. Basics of Scilab. National workshop on Scientific computing methods using SPSS and Scilab, St. Xavier’s College, Ahmedabad, Aug. 22, 2015. # 402
2. Mathematical model for population growth of fish, FCITSFTCES, SVNIT, Surat, Oct. 1, 2015. # 415
3. Bio-economic model of fishery for price-sensitive demand, FCITSFTCES, SVNIT, Surat, Oct. 1, 2015. # 416
4. Differential equations and its applications in engineering, FDP, Parul University, Vadodara, Jan. 1, 2016. # 426
5. Stability of Differential equations, FDP, Parul University, Vadodara, Jan. 1, 2016. # 429
6. Optimal transportation for inventory with carbon emission dependent demand, National Conference : Recent trends in Applied Mathematics and Modeling, Parul University, Vadodara, April. 9, 2016. # 430

Presentations

1. (Mahesh Yeolekar): Robustness analysis of biped robotic walker, SCIXL-2015, DOM, GU, Sep. 26, 2015. Won Second Prize. # 401
2. (Bijal Yeolekar): Optimal fish harvesting with deterioration, effort and price-sensitive demand, National Conference : Recent trends in Applied Mathematics and Modeling, Parul University, Vadodara, April. 9, 2016. # 425 (Won Second Prize)
3. (Zalak Patel): Modelling vertical transmission of hepatitis B virus under treatment and alcoholic habits, National Conference : Recent trends in Applied Mathematics and Modeling, Parul University, Vadodara, April. 9, 2016. # 434 (Won Third Prize)
4. (Chetan Vaghela): Economic order quantity for deteriorating items under inflation with time and advertisement dependent demand, National Conference : Recent trends in Applied Mathematics and Modeling, Parul University, Vadodara, April. 8, 2016. # 423

2014 - 2015

1. (With Digesh Shah and Dushyant Patel) : Optimal inventory policies for single-supplier single-buyer deteriorating items with price-sensitive stock-dependent demand and order-linked trade credit. International Journal of Inventory Control and Management, 3 (1), 285 – 301, 2013. ISSN: 0975 – 3729 # 336
2. (With Digesh Shah and Dushyant Patel) : Optimal Ordering, Shipment and Payment Policies for an Integrated Supplier -Buyer Inventory Model with Trapezoidal Demand and Net Credit. Book Chapter “Emerging Dimensions of Commerce and Management”, Chapter 4, 29 – 46, 2014. International Research Publication House, ISBN: 978 – 93 – 84144 – 32 – 6. # 330
3. (With Poonam Mishra) : Petroleum Economics. Book Chapter “Researches in Commerce and Management : A Deep Insight”, Chapter 14, 206 – 214, 2014. Serials Publications, ISBN: 978 – 81 – 8387 – 677 – 3. # 387
4. (With Poonam Mishra) : Risk and decision analysis for petroleum management: Theory and Practices. Book Chapter “Commerce and Management: A Researcher’s Perspective”, Chapter 19, 252 – 263, 2014. Serials Publications, ISBN: 978 – 81 – 8387 – 673 – 5. # 389
5. (With Jyoti Gupta) : Deterministic mathematical model for dynamics of water borne diseases. Advances in Research, 2 (9), 515 – 522, 2014. ISSN: 2348 – 0394 sciencedomain.org # 378
6. (With Digesh Shah and Dushyant Patel) : EPQ Model for Imperfect Production Processes with Rework and Random Preventive Machine Time for Deteriorating Items and Trended Demand. Yugoslavia Journal of Operations Research, 25 (3), 425 – 443, ISSN: 2334 – 6043 www.yujor.fo.bg.ac.rs # 349
7. Retailer’s replenishment and credit policies for deteriorating inventory under credit period-dependent demand and bad-debt loss. TOP, 23, 298 – 312, 2015. ISSN: 1863-8279 doi: 10.1007/s11750-014-0343-y # 390
8. (With Niketa Trivedi and Nehal Shukla): Inventory model for deteriorating items with fixed life under quadratic demand and nonlinear holding cost. International Journal of Engineering and Innovative Technology, 3 (12), 56 – 60, 2014. ISSN: 2277 – 3754 #388
9. (With Jyoti Gupta) : Modelling and simulation of influenza with screening. International Journal of Engineering and Innovative Technology, 3 (12), 308 – 313, 2014. ISSN: 2277 – 3754 #386
10. (With Digesh B. Shah and Dushyant G. Patel): Optimal Preservation Technology Investment, Credit Period and Ordering Policies for Deteriorating Inventory under Credit Period Dependent Quadratic Demand. International Journal of Engineering and Innovative Technology, 3 (12), 256 – 260, 2014. ISSN: 2277 – 3754 #368
11. (With Dushyant G. Patel and Digesh B. Shah): Manufacturing process with disruption under Quadratic Demand for Deteriorating Inventory. International Journal of Engineering and Innovative Technology, 3 (12), 303 – 307, 2014. ISSN: 2277 – 3754 #382
12. (With Hardik Soni): An EOQ model with imprecise production and exponential fuzzy demand under linear combination of possibility and necessity measure. Business and Economics in search of Excellence, Chapter 5, 55 – 71, 2014. Research India Publications ISBN: 978-93-84144-63-0 #265
13. (With Dushyant G. Patel and Digesh B. Shah): Optimal pricing and ordering policies for deteriorating items with two-level trade credits under price-sensitive trended demand. AMSE JOURNALS –2014-Series: Modelling D, 35 (1), 1-8, 2014. ISSN: 1240-4551 # 356
14. (With Dushyant G. Patel and Digesh B. Shah): Optimal pricing and ordering policies for inventory system with two-level trade credits under price-sensitive trended demand. International Journal of Applied and Computational Mathematics, 1 (1), 101 – 110, 2015. ISSN: 2199 – 5796  doi:10.1007/s40819 – 014 – 0003 – 9 # 355
15. (With Bhavin J. Shah):  EPQ model for time-declining demand with imperfect production process under inflationary conditions and reliability. International Journal of Operations Research, 11 (3), 91 – 99, 2014. ISSN: 1813 – 7148 #385
16. (With Digesh Shah and Dushyant Patel) : An EOQ model for perishable inventory under credit period dependent quadratic demand. Mexican Journal of Operations Research, 3(1), 2 – 12, 2014. ISSN: 2007 – 5138 # 364
17. (With Mahesh Yeolekar) : Influence of Slope Angle on the Walking of Passive Dynamic Biped Robot. Applied Mathematics, 6, 456 – 465, 2015. http://www.scirp.org/journal/am http://dx.doi.org/10.4236/am.2015.63043 ISSN: 2152 – 7393 IF: 1.13 # 403
18. (With Digesh B. Shah and Dushyant G. Patel): Optimal credit period and purchase quantity for credit-dependent trended demand. OPSEARCH, 52 (1), 101 – 107, 2015.   10.1007/s12597-014-0171-8 ISSN: 0030 – 3887 # 363
19. (With Leopoldo Eduardo Cárdenas-Barrón): Retailer’s decision for ordering and credit policies for deteriorating items when a supplier offers order-linked credit period or cash discount. Applied Mathematics and Computation, 259, 569 – 578, 2015. http://authors.elsevier.com/a/1QlZwLvMg4KYb. ISSN: 0096 – 3003 IF: 1.672 # 299
20. (With Mahesh Yeolker): Feasibility analysis of walking of passive dynamic biped robot. Journal of Advances in Mathematics, 10 (3), 3319 – 3325, 2015. ISSN: 2347 – 1921 IF: 1.244 # 395
21. (With Digesh Shah and Dushyant Patel) : Optimal preservation technology investment, retail price and ordering policies for deteriorating items under trended demand and two-level trade credit financing. Journal of Mathematical Modelling and Algorithms, 14 (1), 1 – 12, 2015. ISSN: 2214 – 2495 # 358
22. (Invited Talk): Mathematical model of human thermal system. National Conference on Applied Mathematics (NCAM-2014), Parul Institute of Engineering and Technology, June 27, 2014. # 377
23. (Presented by Digesh B. Shah) : Optimal preservation technology, credit period and ordering policies for deteriorating inventory under credit-period dependent demand. Parul Institute of Engineering and Technology, June 27, 2014. # 368
24. (Presented by Dushyant G. Patel) : Manufacturing process with disruption and deterioration under quadratic demand. Parul Institute of Engineering and Technology, June 27, 2014. # 382
25. (Presented by Jyoti Gupta) : Modelling and simulation of Influenza with screening. Parul Institute of Engineering and Technology, June 27, 2014. # 386
26. (Presented by Niketa Trivedi) : Inventory model for deteriorating items with fixed life under quadratic demand and non-linear holding cost. Parul Institute of Engineering and Technology, June 27, 2014. # 388
27. (Presented by Maulik Panchal and Monica) : Modeling an Arms Race for India and Pakistan. Parul Institute of Engineering and Technology, June 27, 2014. # 391
28. (Invited Talk) (Jyoti Gupta) : Modelling motion of an Aircraft. 50th Annual Conference of Gujarat Ganit Mandal, Nov. 06, 2014 @ Abrama, Surat. # 397
29. (Presented by Digesh B. Shah) : Lot size model for reverse logistics with quadratic demand. ORSI – 47, Dec. 2, 2014 @ Tirupati. # 380
30. (Presented by Dushyant G. Patel) :Optimal credit period and lot-size for deteriorating items with fixed life time and quadratic demand under two-level trade credits. ORSI – 47, Dec. 3, 2014 @ Tirupati. # 383
31. (Presented by Mahesh) : Stability analysis of passive dynamic biped robot. National conference on Recent Trends in Mathematics and its Applications, Dec.19, 2014 @ Surendranagar. # 399
32. (Invited Talk): Mathematical model for fire spread. Workshop on Indian Women and Mathematics, April 02, 2015 @ South Campus, New Delhi. # 406

2013 - 2014

1. (With Hardik Soni) : Continuous review inventory model with fuzzy stochastic demand and variable lead-time. International Journal of applied industrial engineering, 1 (2), 7 -24, 2012. # 286 ISSN: 2155 - 4161
2. (With Ajay S. Gor and Chetan Jhaveri) : Production - inventory model with imperfect production process when demand is quadratic. International Journal of Advanced Engineering Applications, 2 (3), 56 – 64, 2013. # 231 ISSN: 2277 – 7345A
3. (With Digesh Shah) : Integrated optimal policy for deteriorating inventory system of vendor – buyer with trapezoidal demand. Journal of Economic Computation and Economic Cybernetics Studies and Research, 47 (2), 37 – 56, 2013. # 326 ISSN: 1842 – 3264
4. (With Dushyant Patel and Digesh Shah) : EPQ model for trended demand with rework and random preventive machine time. ISRN Operations Research, 2013, Article ID 481572, 8 pages. http://dx.doi.org/10.1155/2013/485172, 2013. # 340 ISSN: 2314 – 6397
5. (With Jyoti Gupta) : SEIR model and simulation for vector borne diseases. Applied Mathematics, 4, 8(A), 13 – 17, 2013. doi:10.4236/am.2013.48A003 # 344 ISSN: 2152 – 7393. scirp.org/journal/am
6. (With Dushyant Patel and Digesh Shah) : Optimal transfer, ordering and payment policies for joint supplier–buyer inventory model with price sensitive trapezoidal demand and net credit. International Journal of Systems Science, http://dx.doi.org/10.1080/00207721.2013.835000, 2013. # 331 ISSN: 1464 - 5319
7. (With Jyoti Gupta) : Mathematical modeling of pulmonary and extra-pulmonary tuberculosis. International Journal of Mathematics Trends and Technology, 4 (9), 158 – 162, 2013. # 359 ISSN: 2231 – 5373 www.ijmttjournal.org
8. (With Jyoti Gupta) : Modelling and analysis of HIV/AIDS menace using differential equations. Journal of Advances in Mathematics, 3 (2), 190 – 200, 2013. # 366 ISSN 2347 – 1921 cirworld.com
9. (With Digesh Shah and Dushyant Patel) : Optimal replenishment and payment policies for deteriorating inventory model with price-sensitive trapezoidal demand under biddable two-part trade credit. Universal Journal of Industrial and Business Management, 1 (4), 141 – 161, 2013. Doi: 10.13189/ujibm.2013.010403 http://www.hrpub.org. # 339 ISSN: 2332 - 3329
10. (With Arpan D. Shah) : Optimal pricing policies for deteriorating items with preservation technology and price-sensitive demand. Journal of Advances in Mathematics, 4 (2), 386 – 395, 2013. # 357 ISSN 2347 – 1921 cirworld.com
11. Book Chapter (With Jyoti Gupta) : Mathematical Modelling of Malaria using differential equations. ebook - Deforestation : Conservation policies, Economic Implications and Environmental Impact. Editor: C. N. Bouza Herrear, Chapter 5, 115 – 132, 2013, Nova Publishers, New York. ISBN: 978 – 1 – 62948 – 242 – 2. # 342
12. (With Mahesh Yolekar) : Graphical analysis of passive dynamic bipedal robot. International Journal of Robotics Research and Development, 4 (1), 1 – 8, 2014. # 360 ISSN: 2278 – 9421 tjprc.org
13. (With Digesh Shah and Dushyant Patel) : Optimal shipments, ordering and payment policies for integrated supplier – buyer deteriorating inventory system with price-sensitive trapezoidal demand and net credit. International Journal of Production Technology and Management, 4 (3), 14 – 31, 2013. # 332 ISSN: 0976 – 6391 iaeme.com/ijptm.asp Impact factor : 4.3285
14. (With Jyoti Gupta) : Modelling of HIV-TB Co-infection Transmission Dynamics. American Journal of Epidemiology and Infectious Disease, 2 (1), 1 – 7, 2014. #370 ISSN: 2333 - 1275
15. (With Mahesh Yolekar) : Local Stability analysis of passive dynamic bipedal robot. International Journal of Robotics Research and Development, 4 (1), 9 – 16, 2014. # 373 ISSN: 2278 – 9421 tjprc.org
16. (With Jyoti Gupta) : HIV/AIDS – Malaria coinfection dynamics. Research Journal of Modelling and Simulation, 1 (1), 8 – 13, 2014. DOI: 10.12966/rjms.02.02.2014 # 372 ISSN sciknow.org
17. (With Digesh Shah and Dushyant Patel) : Optimal retail price, replenishment time and payment scenario under biddable two-part trade credit for price – sensitive trapezoidal demand. Dynamics of Continuous, Discrete and Impulsive Systems : Series B : Applications & Algorithms, 20 (6b), 647 – 673, 2013. # 338 ISSN: 1918 – 2538 (e)
18. (With Nidhi Raykundaliya): A collaborative vendor-buyer deteriorating inventory system in declining market when trade credit is offered. Asian Journal of Management Research, 4 (3), 404 – 418, 2014. # 268 ISSN: 2229 – 3795 ipublishing.co.in/ajmrissues.html
19. (With Digesh Shah and Dushyant Patel) : Optimal credit period and purchase quantity for credit dependent trended demand. OPSEARCH, 2014. # 363 DOI 10.1007/s12597-014-0171-8 ISSN: 0975 – 0320
20. (With Digesh Shah and Dushyant Patel) : Optimal preservation technology investment, retail price and ordering policies for deteriorating items under trended demand and two level trade credit financing. Journal of Mathematical Modelling and Algorithms, 2014. # 358 DOI 1007/s10852-014-9253-0 ISSN: 2214-2495
21. (With Digesh Shah and Dushyant Patel) : Optimal integrated inventory policy for stock-dependent demand when trade credit linked is linked to order quantity. Revista Investigacion Operacional (Cuba), 35 (2), 130 – 140, 2014. # 329 ISSN: 0257 – 4306
22. (With Arpan D. Shah) : Optimal cycle time and preservation technology investment for deteriorating items with price-sensitive stock-dependent demand under inflation. Journal of Physics: Conference Series, 495, 1 – 10, 2014, SciTech 2014. # 365 ISSN: 1742 – 6596 doi : 10.1088/1742-6596/495/1/012017
23. (With Digesh Shah and Dushyant Patel) : Optimal policies for deteriorating items with maximum lifetime and two-level trade credits. International Journal of Mathematics and Mathematical Sciences, Volume 2014, Article ID 365929, 5 pages # 361

            http://dx.doi.org/10.1155/2014/365929

1. (Invited Talk) : Railway track allocation using conflict graph. STTP on Pedagogy in Engineering Mathematics. June 24, 2013 @ Parul Institute of Technology, Vadodara. # 345
2. (Invited Talk) : Bifurcation theory and its applications. STTP on Pedagogy in Engineering Mathematics. June 24, 2013 @ Parul Institute of Technology, Vadodara. # 346 By Jyoti Gupta
3. (Invited Talk) : Numerical Integration by trapezoidal rule. STTP on RTAMES. July 01, 2013 @ Nirma University, Ahmedabad. # 350
4. (Invited Talk) : Phase portrait of differential equations. STTP on RTAMES. July 01, 2013 @ Nirma University, Ahmedabad. # 351 Jyoti Gupta
5. (Invited Talk) : Energy optimization of double inverted pendulum on a cart. STTP on RTAMES. July 02, 2013 @ Nirma University, Ahmedabad. # 347
6. (Invited Talk) : Mathematical model for oil production allocation problem. ICRTMD @ Amity (Noida) on Oct. 30, 2013. # 367
7. (Presented by Arpan D. Shah) : Weight loss Modelling. SciXL – 2014 @ Gujarat University, Ahmedabad on Jan. 04, 2014. # 374
8. (Presented by Jyoti Gupta) : Soup cooling using heat equation. SciXL – 2014 @ Gujarat University, Ahmedabad on Jan. 04, 2014. # 375
9. (Presented by Jagruti Rana) : Capturing assembly seats by political parties in present state elections. SciXL – 2014 @ Gujarat University, Ahmedabad on Jan. 04, 2014. # 376
10. (Invited Talk Key Note Address) : Mathematical models of HIV / AIDS and opportunist diseases. SciTech- 2014, Jan. 13, 2014 @ Jakarta, Indonesia. # 369
11. (Presented by Arpan D. Shah) :Optimal cycle time and preservation technology investment for deteriorating items with price – sensitive stock – dependent demand under inflation. SciTech- 2014, Jan. 13, 2014 @ Jakarta, Indonesia. # 365

• - 2013

1. (With Poonam Pandey) : Supply chain inventory model for deteriorating items under retailer partial trade credit and stock-dependent demand. Management Review, 2 (1), 68 – 76, 2011. # 246 ISSN: 2231 – 0142
2. (With Sarla Pareek and Isha Sangal) : Buyer – Seller coordination for fuzzy deteriorating items. International Journal of Inventory Control and Management, 1 (2), 69 – 94, 2011. # 280 ISSN: 0975 - 3729
3. (With Arpan D. Shah) : Optimal ordering – transfer policy for deteriorating inventory items with fuzzy stock – dependent demand. Mexican Journal of Operations Research, 1 (1), 29 – 44, 2012. # 300 ISSN: 2007 - 5138
4. (With Amisha R. Patel) : Collaborative deteriorating inventory models with two-level credit policy and a price negotiation scheme for price – sensitive stock – dependent demand. International Journal of Development Research and Quantitative Techniques, 2 (1) 3 – 20, 2012. # 295 ISSN: 0974 – 3472
5. (With Ajay S. Gor and Chetan Jhaveri) : Optimal pricing and ordering policy for an integrated inventory model with quadratic demand when trade credit linked to order quantity. Journal of Modelling in Management, 7 (2), 148 – 165, 2012. # 256 ISSN: 1746 - 5664
6. (With Ajay S. Gor and Chetan Jhaveri) : Joint economic production inventory model for single – manufacturer – single – buyer for time dependent deteriorating items with imperfect quality when demand is quadratic. Amity Management Analyst, 7 (1 – 2), 61 – 72, 2012. # 241 ISSN: 0975 - 1440
7. (With Amisha R. Patel) : Optimal ordering and transfer policy for deteriorating inventory with stock-dependent demand. International Journal of Operations and Quantitative Management, 18 (2), 101 – 115, 2012. # 252 ISSN: 1082 – 1910
8. Ordering policy for inventory management when demand is stock-dependent and a temporary price discount is linked to order quantity. Revista Investigacion Operacional, 33 (3), 233 – 244, 2012. # 293 ISSN: 0257 – 4306 http://rev-inv-ope.univ-paris1.fr/
9. (With Digesh Shah) : Vendor – Buyer ordering policy when demand is trapezoidal. 3, 721 – 730, 2012. # 315 ISSN: 1923 – 2934 www.Growing Science.con/ijiec. doi :10.5267/j.ijiec.2012.07.002
10. (With Jyoti Gupta) : Origin – Destination transportation models : Methods. International Journal of Mathematical Sciences and Applications, 2 (3), 819 – 825, 2012. # 312 ISSN: 2230 – 9888 journalshub.com
11. (With Amisha R. Patel) : Optimal ordering policies for inventory system with stock-dependent demand using a discounted cash-flow analysis when trade credit is linked to order quantity. International Journal of Inventory Control & Management, 2 (2), 1 – 24, 2012. # 304 ISSN: 0975 – 3729
12. (With Niketa Trivedi) : Optimal policies for deteriorating inventory system with storage constraint under two – level trade credit financing for stock-dependent demand. International Journal of Inventory Control & Management, 2 (2), 97 – 114, 2012. # 306 ISSN: 0975 – 3729
13. (With Arpan D. Shah and Nidhi Raykundaliya) : Vendor – buyer deteriorating inventory model when two – level trade credit policy is offered during recession. International Journal of Inventory Control & Management, 2 (2), 79 – 96, 2012. # 307 ISSN: 0975 – 3729
14. (With Arpan D. Shah and Nidhi Raykundaliya) : Vendor – buyer deteriorating inventory model when two – level trade credit policy is offered during recession. International Journal of Inventory Control & Management, 2 (2), 79 – 96, 2012. # 314 ISSN: 0975 – 3729 Same as 307 only for tuning record
15. (With Hardik Soni and Kamlesh Patel) : A fuzzy production – inventory model with imprecise production and fuzzy production time under - measure. International Journal of Mathematics and Computations, 18 (1), 67 – 84, 2013. # 267 ISSN: 0974 – 5718
16. (With Hardik Soni and Kamlesh Patel) : Optimizing inventory and marketing policy for non-instantaneous deteriorating item with generalized type deterioration and holding cost rates. OMEGA, 41 (2), 421 – 430, (April) 2013. # 298 ISSN: 0305 - 0483
17. (With Arpan D. Shah and Bhavin J. Shah) : Deteriorating inventory model with finite production rate and two-level of credit financing for stochastic demand. OPSEARCH. 50 (3), 358 – 371, 2013. doi 10.1007/S12597 – 012 – 0112 -3, 2012. # 313 ISSN: 0030 – 3887
18. (With Hardik Soni and Jyoti Gupta) : A note on ‘a replenishment policy for items with price-dependent demand, time proportional deterioration and no shortages’. International Journal of Systems Science. http://dx.doi.org/ 10.1080 / 00207721.2012.749434, 2012. # 316 ISSN: 1309 – 8063
19. (With Poonam Mishra) : Oil production optimization : a mathematical model. Journal of Petroleum Exploration and Production Technology, doi 10.1007 / S13202 – 012 – 0040 – z, 2012. # 317 ISSN: 2190 – 0566
20. (With Jyotindra Prajapati) : Calculus War between Newton and Leibniz. Aryabhatta Journal of Mathematics & Informatics, 4 (2), 175 – 184, 2012. # 283 ISSN: 0975 – 7139
21. (With Digesh Shah) : Joint optimal policy for variable deteriorating inventory system of vendor – buyer with trapezoidal demand. British Journal of Applied Science & Technology, 3 (1), 160 – 173, 2013. # 320 sciencedomain.org, ISSN: 2231 – 0843
22. (With Arpan D. Shah) : Optimal procurement policy with trade credit financing, capacity constraint and stock-dependent demand. International Journal of Operations Research (Taiwan), 9 (4), 185 – 194, 2012. # 318 ISSN: 1813 – 7148
23. (With Amisha R. Patel and O. K. Gupta) : Integrated vendor – buyer cooperative models for deteriorating inventory with quantity discount and price-sensitive stock-dependent demand. International Journal of Inventory Control and Mangement, 2 (1), 113 – 129, 2012. # 282 ISSN: 0975 - 3729
24. (With Dushyant Patel and Digesh Shah) : Optimal pricing, shipments and ordering policies for single – vendor single – buyer inventory system with price – sensitive stock – dependent demand and order – linked trade credit. Global Journal of Researches in Engineering G: Industrial Engineering, 13 (1), 31 – 41, 2013. # 335 ISSN: 2249 – 4596
25. (With Arpan D. Shah) : Optimal replenishment policy for deteriorating inventory with trade credit financing, capacity constraint and stock – dependent demand. International Journal of Engineering and Applied Sciences, 2 (3), 37 – 48, 2013. # 319 ISSN: 2305 – 8269
26. (With Mahesh Yeolekar) : Pole placement approach for controlling double inverted pendulum. Global Journal of Researches in Engineering : Mechanical and Mechanics Engineering, 13 (2), 17 – 23, 2013. # 341 ISSN: 2249 – 4596
27. (With Niketa Trivedi) : Growth model of Indian metro-cities. Thematic Journal of Applied Sciences, 2 (2), 14 – 17, 2013. # 324 ISSN: 2277 – 3037
28. (With Dushyant Patel and Digesh Shah) : Optimal integrated inventory policies for deteriorating items with stock-dependent demand and trade credit linked to order quantity. Mexican Journal of Operations Research, 2(1) 2 – 13, 2013. # 334 ISSN: 2007 – 5138
29. (With Arpan D. Shah) : Optimal manufacturing and pricing policies in an imperfect production system. Journal of SCI – TECH Research, 4 (1), 52 – 66, 2013. # 327 ISSN: 0974 - 9780
30. (Invited Talk) : Fish population growth rate model : Kankaria Lake and rain forecasting using simulation. Refresher course in Environmental Science, July 6, 2012 @ GU. #322
31. (Invited Talk) : Basin of attraction for knee-less bipedal robot. National Conference on Advances in Mathematical Sciences (NCAMS-2012), Dec. 7, 2012 @ KSVU, Gandhinagar. # 325
32. (Invited Talk) : Transportation problem using Tonelli Lagrangians. 78th Annual conference of Indian Mathematical Society (IMS 2012 – 13), Jan. 22 – 25, 2013 @ BHU, Varansi. # 323
33. (Invited Talk) : Optimal retail price, replenishment time and payment scenario under biddable two – part trade credit for price – sensitive trapezoidal demand. National Conference on Recent Trends in Operations Research (NCRTOR-2013), April 11 – 12, 2013 @ Amity School of Engineering & Technology, New Delhi. # 338
34. (Presented by Arpan D. Shah) : Optimal manufacturing and pricing policies in an imperfect production system. National Conference on Advances in Mathematical Sciences (NCAMS-2012), Dec. 7-8, 2012 @ KSVU, Gandhinagar. # 327
35. (Presented by Jyoti Gupta) : Mathematical model for malaria. National Conference on Advances in Mathematical Sciences (NCAMS-2012), Dec. 7-8, 2012 @ KSVU, Gandhinagar. # 328
36. (Presented by Dushyant Patel) : Optimal integrated policy for stock – dependent demand when trade credit linked to order quantity. National Conference on Advances in Mathematical Sciences (NCAMS-2012), Dec. 7-8, 2012 @ KSVU, Gandhinagar. # 329
37. (Presented by Digesh Shah) : Optimal ordering, shipment and payment policies for an integrated vendor – buyer inventory model with trapezoidal demand and net credit. National Conference on Advances in Mathematical Sciences (NCAMS-2012), Dec. 7-8, 2012 @ KSVU, Gandhinagar. # 330
38. (Presented by Mahesh Yeolekar) : Controller for the inverted pendulum. National Conference on Advances in Mathematical Sciences (NCAMS-2012), Dec. 7-8, 2012 @ KSVU, Gandhinagar. # 331
39. (Presented by Digesh Shah) : Optimal shipments, ordering and payment policies for integrated supplier – buyer deteriorating inventory system with price – sensitive trapezoidal demand and net credit. National Conference on Recent Trends in Operations Research (NCRTOR-2013), April 11 – 12, 2013 @ Amity School of Engineering & Technology, New Delhi. # 332
40. (Presented by Dushyant Patel) : Optimal inventory policies for single – supplier single – buyer deteriorating items with price – sensitive stock – dependent demand and order – linked trade credit. National Conference on Recent Trends in Operations Research (NCRTOR-2013), April 11 – 12, 2013 @ Amity School of Engineering & Technology, New Delhi. # 336
41. (Presented by Mahesh Yeolekar) : Mathematical modeling of bipedal: Passive dynamic robot. National Seminar on Mathematical Modelling and Simulation, May 03 – 04, 2013 @ Nirma University, Ahmedabad. # 343

2011 - 2012

1. (With Hardik Soni) : Optimal pricing and ordering policies when the supplier provides two-stage credit periods. Global Journal of Finance and Management, 3 (1), 159 – 172, 2011. # 165 ISSN: 0975 - 6477
2. (With Amisha Patel & Lou, K. R.) : Optimal ordering and pricing policy for price-sensitive stock-dependent demand under progressive payment scheme. International Journal of Industrial Engineering Computations, 2 (3), 523 – 532, 2011. # 278 ISSN: 1923 - 2934
3. (With Chetan Jhaveri and Ajay S. Gor) : Determination of optimal pricing, shipment and payment policies for an integrated supplier – buyer deteriorating inventory model in buoyant market with two – level trade credit. International Journal of Operational Research, 11 (2), 119 – 135, 2011. # 242 ISSN: 1745 - 7653
4. (With Nidhi Raykundaliya) : Co-ordinated inventory models with two-level credit policy and a price negotiation scheme in declining market. International Journal of Data Analysis Techniques and Strategies, 3 (2), 202 – 219, 2011. # 279 ISSN: 1755 - 8069
5. (With Kunal Shukla) : A collaborative vendor – buyer deteriorating inventory model for optimal pricing, shipment and payment policy with two-part trade credit. Book Chapter 21, Supply Chain Coordination and Management, Intechweb Publishers, 2011 ISBN : 978 – 953 – 7619. # 284
6. (With Hardik Soni) : Optimal policy for fuzzy expected value production – inventory model with imprecise production preparation time. International Journal of Machine Learning and Cybernets, doi 10.1007/S/3042 – 011 – 0020 – 5, 2011. # 287 ISSN: 1868 – 808X
7. (With Poonam Mishra and Hardik Soni) : Optimal ordering policies for weibull distribution deterioration with associated salvage value under scenario of progressive credit periods. OPSEARCH, 48 (1), 73 – 85, 2011. DOI : 10.1007 / S12597 – 011 – 0036 – 3. # 200 ISSN: 0030 - 3887
8. (With O. K. Gupta & Amisha Patel) : An integrated deteriorating inventory model with permissible delay in payments and price-sensitive stock-dependent demand. International Journal of Operational Research, 11 (4), 425 – 442, 2011. # 266 ISSN: 1745 - 7653
9. (With Chetan Jhaveri and Ajay S. Gor) : An integrated inventory policy with deterioration for a single vendor and multiple buyers in supply chain when demand is quadratic. Revista Investigacion Opercional, 32 (2), 93 – 106, 2011. # 276 ISSN: 0257 - 4306
10. (With Harsh Trivedi) : Production – inventory strategy of deteriorating items for single-vendor and two buyers. Marketing Zephyr, 3 (2), 6 – 12, 2011. # 213 ISSN: 0974 - 9195
11. Single supplier – buyer integrated inventory model under multiple JIT delivery and stock – dependent demand. Journal of Mathematical Modelling and Algorithms, 10 (3), 293 – 305, 2011. # 292 ISSN: 1572 - 9214
12. (With Isha Sangal, Sarla Pareek) : Coordinated vendor – buyer inventory model for deteriorating items under fuzzy environment. ASOR Bulletin, 30 (1), 62 – 77, 2011. # 261 ISSN: 0812 – 860X
13. (With Hardik Soni) : Joint pricing and replenishment policy for stock dependent demand under progressive payment scheme. Viewpoint, 2 (1), 55 – 73, 2011. # 170 ISSN: 2229 - 3825
14. (With Chetan Jhaveri and Ajay S. Gor) : Determination of optimal ordering and transfer policy for deteriorating inventory system when demand is quadratic. International Journal of Management Science and Engineering Management, 6 (4), 278 – 233, 2011. # 255 ISSN: 1750 – 9653
15. (With Nidhi Raykundaliya) : Single vendor and multiple buyers integrated inventory policy in demand declining market. International Journal of Inventory Control and Management, 1 (1), 23 – 42, 2011. # 273 ISSN: 0975 – 3729
16. (With Bhavin J. Shah, Wee, H. M. and Gede) : Optimal co-ordinated supply chain strategy with price and time sensitive demand. International Journal of Business Performance and Supply Chain Modelling, 3(3), 208 - 225,–2011. # 216 ISSN: 1758 – 941X
17. (With Kunal T. Shukla) : Optimal ordering policy in demand declining market under inflation when supplier credits linked to order quantity. Electronic journal of Applied Statistical Analysis, 4(2), 131 – 143, 2011. # 219 ISSN: 2070 – 5948
18. (With Chetan Jhaveri) : Integrated optimal ordering strategy for single-supplier single – buyer deteriorating inventory system considering multiple JIT delivery and relevant cost functions when demand is quadratic. Proceedings of Eighth AIMS International Conference on Management, 194 – 201, 2011. # 296
19. Optimal ordering policy for deteriorating items in a response to temporary price discount linked to order quantity and stock-dependent demand. International Journal of Management and Transformation, 5(2), 3 – 13, 2011. # 294 ISSN: 0974 - 3502
20. (With Hardik Soni) : A multi-objective production inventory model with backorder for fuzzy demand under flexibility and reliability. Journal of Mathematical Modelling and Algorithms, 10, 341 – 356, 2011. # 285 ISSN: 1572 - 9214
21. (With Amisha R. Patel) : Optimal ordering policies using a discounted cash-flow analysis when stock-dependent demand and a credit is linked to order quantity. American Journal of Mathematics and Sciences, 1 (1), 17 – 32, 2012. # 305 ISSN: 2250 – 3102
22. Talk in Refresher Course in Environmental Science) Mathematical tools in environmental science, June 30, 2011 @ GU, Ahmedabad.
23. Introduction of Mathematics to Finance. Nov. 24, 2011. KCG, Gujarat Government. # 309
24. Talk : Dynamics of the spread of tuberculosis incorporating drug resistance and HIV : A mathematical Model. International Conference on “Applied Mathematics & Statistics (ICAPMS - 2011), Dec. 16 – 18, 2011 @ Ahmedabad. # 310
25. Talk : Optimal split pick-up and split delivery of maritime crude oil transportation. @ Vadodara Institute of Engineering, Jan. 07, 2012. # 308
26. (Talk by Baharul ) : Modelling of high resolution IRS satellite imaging geometry using bundle adjustment with a combination of sequential and batch filters. International Conference on “Applied Mathematics & Statistics (ICAPMS - 2011), Dec. 16 – 18, 2011 @ Ahmedabad. # 311
27. (Presented by Amisha) : Optimal ordering policies for inventory system with stock-dependent demand using a discounted cash-flow analysis when trade credit is linked to order quantity. International Conference on “Applied Mathematics & Statistics (ICAPMS - 2011), Dec. 16 – 18, 2011 @ Ahmedabad. # 314
28. (Presented by Niketa) : Optimal policies for deteriorating inventory with storage constraint under to-level trade credit financing for stock-dependent demand. International Conference on “Applied Mathematics & Statistics (ICAPMS - 2011), Dec. 16 – 18, 2011 @ Ahmedabad. # 306
29. (Presented by Nidhi Raykundaliya) : Vendor – buyer deteriorating inventory model when two – level trade credit policy is offered during recession. International Conference on “Applied Mathematics & Statistics (ICAPMS - 2011), Dec. 16 – 18, 2011 @ Ahmedabad. # 307
30. (Presented by Jyoti) : Origin – Destination Transportation. International Conference on “Applied Mathematics & Statistics (ICAPMS - 2011), Dec. 16 – 18, 2011 @ Ahmedabad. # 310
31. (Presented by Bhavin) : Deteriorating inventory model with finite production rate and two – level of credit financing for stochastic demand. International Conference on “Applied Mathematics & Statistics (ICAPMS - 2011), Dec. 16 – 18, 2011 @ Ahmedabad. # 313
32. (Presented by Digesh Shah) : Vendor – buyer ordering policy when demand is trapezoidal. (National Conference on “Applied Mathematics” (NCAM – 2012), May 4 – 5, 2012 @ Parul Institute of Engineering, Vadodara. # 315

(2010 – 2011)

1. (With Kunal Shukla) : Supply chain inventory model for optimal ordering and pricing policies under retailer partial trade credit scenario in declining market. Dynamics of Continuous, Discrete and Impulsive Systems – Series B, 17 (2), 309 – 324, 2010. # 251 ISSN: 1918-2538
2. (With Poonam Pandey) : An EOQ model for deteriorating items under supplier credits when demand is stock-dependent. Yugoslavia Journal of Operations Research, 20 (1), 145 – 156, 2010. # 208 ISSN: 0354-0243
3. (With Raiyan Munshi) : An order level lot size model for deteriorating items for two storage facilities when demand is exponentially declining. Revista Investigacion Operacional, 31 (3), 193 – 199, 2010. # 211 ISSN: 0257-4306
4. (With Chetan Jhaveri & Ajay S. Gor) : Joint optimal production – inventory model with imperfect production processes and varying deterioration rate in buoyant market. International Journal of Operational Research, 9 (2), 125 – 140, 2010. # 236 ISSN: 1745-7645
5. (With Baharul Islam) : Attitude modeling using Kalman filter approach for improving the geometric accuracy of Catosat-1 data products. Sensors & Transucers, 118 (7), 144 – 155, 2010. # 250 ISSN: 1726-5479
6. (With Amisha R. Patel) : Optimal ordering and pricing policies for deteriorating inventory model under delay in payments and stock-dependent demand. Mathematics Today, 26 (June 2010), 1 – 10, 2010. #260 ISSN: 0976-3228
7. (With Nidhi Raykundaliya) : Optimal policies for integrated inventory system for deteriorating items using quantity discount in price-sensitive declining market. TECNIA – Journal of Management Studies. 5 (1), 15 – 25, 2010. # 270 ISSN: 0975 – 7104
8. (With Chetan Jhaveri & Ajay S. Gor) : Single vendor and multiple buyers integrated inventory system when demand is quadratic. International Journal of Business Performance and Supply Chain Modelling, 2 (2), 171 – 182, 2010. # 275 ISSN: 1758 – 941X
9. (With Kunal Shukla) : Optimal production schedule in declining market for an imperfect production system. International Journal of Machine Learning & Cybernets, 1(1), 89 – 99, 2010. # 277 ISSN: 1868-808X
10. Integrated deteriorating inventory model when order quantity is linked to freight rate and credit period. International Journal of Modelling in Operations Management, 1(2), 137 – 156, 2010. # 262 ISSN: 2042-4108
11. (With Chetan Jhaveri & Ajay S. Gor) : Production – inventory model for deteriorating items with imperfect production process when demand is quadratic. Journal of Innovative Research in Management and Humanities, 1(1), 2010. # 232 ISSN: 2141 - 8217
12. (With Nidhi Raykundaliya) : A deteriorating inventory model for single vendor and multi buyers in demand declining market. Viewpoint, 1 (1), 45 – 52, 2010. # 274 ISSN: 2229 - 3825
13. (With Hardik Soni & C. K. Jaggi) : Inventory models and trade credit : A review. Control and Cybernetics, 39 (3), 867 – 884, 2010. # 176 ISSN: 0324 - 3569
14. (With Chetan Jhaveri & Ajay S. Gor) : An integrated deteriorating inventory model with permissible delay in payments when demand is quadratic. Galgotias Management Insights, 2(2), 43 -58, 2011. # 264 ISSN: 0975 - 7694
15. (With Amisha Patel) : Integrated inventory models with two-level credit policy and a price negotiation scenario for price-sensitive stock-dependent demand. International Journal of Industrial Engineering Computations, 2 (3), 657 - 670, 2011. # 289 ISSN: 1450-2887
16. (With Hardik Soni) Periodic review inventory model with service level constraint in fuzzy environment. International Journal of Applied Decision Sciences, 4(2), 129 – 147, 2011. # 272 ISSN: 1755-8085
17. (With Kunal Shukla & O. K. Gupta) : Supply chain inventory model for deteriorating items under two level credit policy in declining market. International Journal Applied Management Science, 3(2), 143 – 173, 2011. # 248 ISSN: 1755-8921
18. (INVITED TALK) : Metric and ultrametric spaces of resistances using graph theory. Workshop on “Role of Mathematics in Engineering” at Parul Institute of Engineering, Baroda, Novm. 26, 2010. # 288
19. (With Amisa R. Patel) : Integrated inventory models with two – level credit policy and a price negotiation scheme for price – sensitive stock – dependent demand. Presnted @ APORS-2010, Penang, Malaysia, Decm. 07, 2010. # 289
20. (Presented by Kunal Shukla) : A collaborative vendor – buyer deteriorating inventory model for optimal pricing, shipment and payment policy with two – part trade credit. @ APORS-2010, Penang, Malaysia, Decm. 07, 2010. # 284
21. (Presented by Isha) : Collaboration of single – manufacturer multi – buyer inventory system with credit option under fuzzy demand. AIMS – 8 @ IIM A, Jan. 01, 2011. # 291
22. (Presented by Chetan) : Integrated optimal ordering strategy for single – supplier single – buyer deteriorating inventory system considering multiple JIT delivery and relevant cost functions when demand is Quadratic. AIMS – 8 @ IIM A, Jan. 02, 2011. # 296
23. (Presented by Bhavin) : Economic replenishment model for integrated supply chain with ROI linked to stock return policy. AIMS – 8 @ IIM A, Jan. 02, 2011. # 297
24. Lecture Series : Inventory modeling in Supply Chain, Centre for Mathematical Sciences, Banasthali University, Rajasthan. Sept. 26 – Oct. 01, 2010. (15 Lectures)
25. Invited Talk : Inventory Problems in Crisp and Fuzzy Environments Using Mathematical Programming. Workshop on Inventory Modeling, Centre for Mathematical Sciences, Banasthali University, Rajasthan. March 05, 2011.

• – 2010)

1. Vendor’s optimal policy for time dependent deteriorating inventory with exponentially decreasing demand and partial backlogging. Published in Australian Society of Operations Research Bulletin (ASOR Bulletin), 28 (2), 9 – 14, 2009. # 209 ISSN: 1446-6678
2. (With Nidhi & Bhavin) : A deteriorating inventory model with discounted selling price in declining market. Proceeding of National Women’s Conference on “Exploring Potentialities of Women in Engineering. 292 – 297, July 3- 4, 2009. # 235

1.  (Invited Talk) : Spatial fuzzy compromise approach for flood disaster management. National Women’s Conference on “Exploring Potentialities of Women in Engineering. July  4, 2009, Changa. # 244
2. (With Nidhi) : A deteriorating inventory model for demand declining market under inflation and trade credit. Proceedings of “Ninth International Conference on Operations and Quantitative Management, 1 – 7. # 217
3. (With Chetan Jhaveri and Ajay Gor) : A joint strategy for vendor – buyer deteriorating inventory system when demand is quadratic. Proceedings of “Ninth International Conference on Operations and Quantitative Management, 8 – 13.     # 218
4. (With Nidhi) : Optimal pricing and ordering policy for deteriorating items under delay in payments in demand declining market. Revista Investigacion Operacional, 30 (3), 224 – 234, 2009. #233 ISSN: 0257-4306
5. (With Bhavin J. Shah & H. M. Wee) : A lot size inventory model for the weibull distributed deterioration rate with discounted selling price and stock – dependent demand. International Journal of Data Analysis Techniques and Strategies, 1 (4), 355 – 363, 2009. # 192 ISSN: 1755-8069
6. Mathematics as a tool for economic and social issues. History and Heritage of Mathematical Sciences, Sukrtindra Oriental Research Institute, 210 – 215, 2009. # 132
7. (With Nidhi) : Optimal pricing and ordering policy for deteriorating inventory under trade credit in demand declining market. China – USA Business Review, 8 (8), 46 – 52, 2009. # 234 ISSN: 1537-1514
8. (With Amisha) : Optimal pricing and ordering policy for stock dependent demand under delay in payments. ASOR bulletin, 28 (3) 2 – 9, 2009. # 259 ISSN: 1446-6678
9. (With Chetan and Ajay) : Optimal pricing, shipment and payment policies for an integrated supplier-buyer inventory model in buoyant market with two-level trade credit. International Journal of Business Insights and Transformation, 2 (2), 3 – 12, 2009. # 242 ISSN: 0974-5874
10. (With Hardik) : Ordering policy for stock-dependent demand rate under progressive payment scheme. International Journal of Systems Sciences, 40 (1), 81 – 89, 2009. # 171 ISSN: 1464-5319
11. Optimisation of pricing and ordering under the two-stage credit policy for deteriorating items when the end demand is price and credit period sensitive. International Journal of Business Performance and Supply Chain Modelling, 1 (2 & 3), 229 – 239, 2009. # 201 ISSN: 1758-941X
12. (With Poonam Pandey) : Deteriorating inventory model when demand depends on advertise and stock display. International Journal of Operations Research (Taiwan), 6 (2), 33 – 44, 2009. # 225 ISSN: 1813-7148
13. (With Bhavin J. Shah & Kunal T. Shukla) : Deterministic inventory model for two-level credit linked demand under permissible delay in payments. ASORB, 28 (4), 27 – 36, 2009. # 230 ISSN: 1446-6678
14. (With Ajay S. Gor) : Determining optimal selling price and lot-size for exponentially deteriorating items when the supplier offers all unit quantity discounts. Journal of SCI – Tech Research,  1(1), 77 – 82, 2010. # 41 ISSN: 0974-9780
15. (With Kunal Shukla) : Optimal transfer – ordering strategy for a deteriorating inventory in declining market. International Journal of Mathematics and Mathematical Science, Article ID 503676, 15 pages, 2009. # 253 ISSN: 0974 - 4428
16. A lot – size model for deteriorating items under conditions of a one-time only extended credit period. International Journal of Mathematics and Mathematical Science, Article ID 173428, 9 pages, 2010/137428. # 177 ISSN: 0974 - 4428
17. (With Kunal Shukla) : Optimal ordering and pricing policies for deteriorating inventory in demand declining market and time dependent partial backlogging. Tatva, 6(2), 71 – 81, 2010. # 224 ISSN:  0973 - 0974
18. (With Kunal Shukla) : Deteriorating inventory model in demand declining market under inflation when supplier credits linked to order quantity. Revista Investigacion Operacional, 31 (2), 95 – 108, 2010. # 226 ISSN: 0257-4306
19. (With Nidhi Raykundaliya) : Retailer’s pricing and ordering strategy for weibull distribution deterioration under trade credit in declining market. Applied Mathematical Sciences, 4 (21), 1011 – 1020, 2010. # 238 ISSN: 1312-885X
20. (With Kunal Shukla) : Optimal ordering policy for deteriorating items in demand declining market and time dependent partial backlogging. Journal of Science, 1(1), 115 – 118, 2010. # 223 ISSN:  0975 - 5446
21. (With Kunal Shukla) : Deteriorating inventory model for optimal ordering and pricing policies under partial trade credit in supply chain when demand decreases. Modelling, Measurement and Control, Series D, 30, 2, 49 – 63, 2009. # 254 ISSN: 0761-2516
22. (Presented by Nidhi) : A deteriorating inventory model with discounted selling price in declining market. National Women’s Conference on “Exploring Potentialities of Women in Engineering. 4 July, 2009, Changa. # 235
23. (Video Presentation): A deteriorating inventory model for demand declining market under inflation and trade credit. Ninth International Conference on Operations and Quantitative Management, June 28, 2009, Los Angeles, US. # 217
24. (Presented by Ajay Gor) : A joint strategy for vendor – buyer deteriorating inventory system when demand is quadratic. Ninth International Conference on Operations and Quantitative Management, June 29, 2009, Los Angeles, US. # 218
25. (Presented by Chetan) : An integrated deteriorating inventory model with permissible delay in payments when demand is quadratic. APORS, Decm. 8, 2009, Jaipur. # 264
26. (Invited Talk) : Optimal pricing and ordering policy for an integrated inventory model with Quadratic demand when trade credit linked to order quantity. National Seminar on Recent trends in Operations Research and its Computational Challenges, Department of Applied Mathematics, University of Calcutta, 18 Novm. 2009. # 256
27. Lecture Series (15 – lectures) : Inventory Modelling @ Centre for Mathematical Sciences, Banasthali University, Jaipur, Aug. 18 – 23, 2009

• – 2009)

1. (with B. Islam, Nita H. Shah and B. Gopala Krishna) : A Generic Model for Relative Adjustment between Optical Sensors Using Rigorous Orbit Mechanics. Published in Sensors & Transducers Journal, 93 (6), pp. 37 – 49, 2008. # 221

1. (With Nidhi Raykundaliya & Bhavin J. Shah) : An order level inventory system for deteriorating item with  trade credit under declining market conditions using DCF – approach. Published in Review of Business and Technological Research, 1 (1), 1 – 7, 2008. # 220
2. (With B. Islam, Nita H. Shah and B. Gopala Krishna) : Photogrammetric resection approach using straight line features for estimation of Carosat – 1 platform parameters. Published in Sensors & Transducers Journal, 95 (8), pp. 134 – 145, 2008. # 228
3. (With Niketa J. Mehta) : Lot-size inventory model with shortages and deterioration for decreasing demand. Published in Mathematics Today, 24, 9 – 16, 2008. # 120
4. (With Ravi Gor) : A time dependent deteriorating EOQ model with selling price and stock dependent demand during inflation under supplier credits. Published in Icfai University Journal of Operations Management, 7(4), 6 – 20, 2008. #143
5. (With Ankit Acharya) : A time dependent deteriorating order level inventory model for exponentially declining demand. Published in Applied Mathematical Sciences, 2 (56), 2795 – 2802, 2008. # 212
6. (With Hardik Soni) : Optimal ordering and pricing policies for stock dependent demand and deteriorating items under progressive trade credit scheme. Published in Investigacao Operacional, 28 (1), 91 – 105, 2008. # 173
7. One time only incentives and inventory policies for deteriorating items. Published in Economic Computation and Economic Cybernetics Studies and Research, 42 (3), 183 – 190, 2008. # 73
8. (With Hardik Soni) : Optimal ordering and trade credit policy for EOQ model. Indus journal of Management and Social Sciences, 2 (1), 66 – 76, 2008. # 175
9. (With Ajay S. Gor & Chetan Jhaveri) : Integrated optimal solution for variable deteriorating inventory system of vendor – buyer when demand is quadratic. Published in Canadian Journal of pure & applied sciences, 3 (1), 713 – 717, 2009. # 227
10. (With Ajay S. Gor) : An integrated economic lot-size model for vendor – buyer inventory system when input is random. Published in Mathematical and Computer Modelling, 49, 1326 – 1330, 2009. # 187
11. (With Kunal T. Shukla) : Deteriorating inventory model for waiting time partial backlogging. Published in Applied Mathematical Sciences, 3(9), 421 – 428, 2009. #222
12. (With Poonam Pandey) : An EOQ model for stock dependent demand under buyer partial trade credit policy in supply chain. Published in International Journal of Mathematical Sciences and Engineering Applications (IJMSEA), 3 (1), 279 – 292, 2009. # 245
13. (With Poonam Pandey & Ravi Gor) : Present value formulation of lot-size inventory model for deteriorating items with shortages when demand depends on advertisement frequency and stock displayed. Published in International Journal of Operations and Quantitative Management, 15 (2), 91 – 100, 2009. # 214
14. (With Poonam Pandey) : Weibull distributed deterioration of units with salvage value inventory model for a temporary price discount. Published in ASOR Bulletin (Australian Society of Operations Research Bulletin), 28 (1), 2 – 9, 2009. # 207
15. (Presented by Bhavin J. Shah) : An order level inventory system for deteriorating item with  trade credit under declining market conditions using DCF – approach.  2008 International Conference on Global issues in Business and Technology. July, 31 – 01 August, 2008, National Institute of Financial Management, Faridabad. # 220
16. (Presented by Baharul Islam) : DEM generation using photogometric bundle block adjustment for Cartosat – I. 28 – INCA (Indian National Cartographi Association) International congress on collaborative mapping and space technology, Novm. 04 – 06, 2008, Gandhinagar. Paper ID 262. # 239

• – 2008)

1. (With Ravi M. Gor) : EOQ model for deteriorating items with price dependent demand under supplier credits. Published in International Journal of Computational Intelligence Research and Applications, 1(1), 83 – 94, 2007. # 134 ISSN: 0973-1873

1. (With Bhavini Pandya) : Forecasting BSE index using artificial neural networks. Published in International Journal of Computational Intelligence Research and Applications, 1(1), 17 – 22, 2007. # 172  ISSN: 0973-1873
2. (With Amrina and C. K. Jaggi) : Optimization of channel profit for deteriorating items under permissible delay in payments when the end demand is price sensitive. Published in Revista Investigacion Operacional, 28 (2), 157 – 169, 2007.  # 178 ISSN: 0257-4306
3. (With Ajay S. Gor and C. C. Gujarathi) : A note on optimal marketing policies with variable mark-up for exponentially deteriorating inventory under random input. Published in Revista Investigacion Operacional, 28 (3), 190 – 195, 2007.     # 38 ISSN: 0257-4306
4. (With Chirag J. Trivedi) : An order level lot size inventory model for exponentially deteriorating inventory with random lead time. Published in Economic Computation & Economic Cybernetics and Research, 41 (3 – 4), 269 – 276, 2007. # 29 ISSN: 0424-267x
5. (With Bhavin J. Shah and Y. K. Shah) : An EOQ model with time dependent deterioration under discounted cash flow approach when supplier credits are linked to order quantity. Control and Cybernetics, 36 (2), 405 – 423, 2007. # 145 ISSN: 0324-8569
6. (With Hardik Soni) : Optimal ordering policy for stock dependent demand under progressive payment scheme. Published in European Journal of Operational Research, 184 (1), 91 – 100, 2008. # 169 ISSN: 0377-2217
7. (With Poonam Mishra) : Inventory management of time dependent deteriorating items with salvage value. Published in Applied Mathematical Sciences, 2(16), 793 – 798, 2008. # 190 ISSN: 1312-885X
8. (With Poonam Pandey & Ravi Gor) : Order level lot size inventory model for Weibull distributed deteriorating units having salvage value with price breaks. Published in The icfai Journal of Operations Management, 7(1), 7 – 15, 2008. # 199 ISSN: 0379-5446
9. (With Poonam Pandey) : Optimal ordering policy for time dependent deterioration with associated salvage value when delay in payments is permissible. Published in Investigacion Operacional, 2 (2), 117 – 129, 2008. # 196 ISSN: 0257-4306
10. (With Hardik Soni) : Optimal ordering and credit policy for EOQ model. Published in Indus Journal of Management and Social Sciences, 2 (1), 66 – 76, 2008. # 174 ISSN: 1992-4399
11. (With Vandana Dixit) : Production inventory model for deteriorating items with trended demand. Published in Vidya, 3 (1), 28 – 35, 2008. # 104
12. (With Nidhi Raykundaliya) : A time dependent deteriorating production inventory model with exponentially decreasing demand. Published in Mathematics Today, Vol. 24, 13 – 22, 2008. # 210 ISSN: 0976-3228
13. (With Chetan Jhaveri and Ajay S. Gor) : An integrated vendor – buyer strategy when demand is quadratic. Published in Mathematics Today, Vol. 24, 31 – 38, 2008. # 215 ISSN: 0976-3228
14. (With Hardik Soni) : Optimal ordering and trade credit policy for EOQ model. Published in Indus Journal of Management & Social Sciences, 2 (1), 66 – 76, 2008. # 175 ISSN: 1992 - 4399
15. A production – inventory model in a supply chain management with imperfect processes and exponential deterioration of units. Presented at ORSI, 4 – 6 Decm. New Delhi. # 195
16. (Invited Talk) : Solving quadratic programming problems: a neural network approach. Mathematics Meet – 2008, 28 – 29 March, 2008, Ahmedabad.
17. (Presented by Poonam) : Lot-size model for deteriorating items with salvage value when units received are uncertain. Presented at ICON07, IBS, 27 – 29 Decm., Ahmedabad. # 193
18. (Presented by Poonam) : Order-level lot-size inventory model for deteriorating items with salvage value under random input. Presented at SOM – 11, 21 – 23 Decm. Nasik. # 194
19. (Presented by Poonam) : Optimal ordering policies for weibull distribution deterioration with associated salvage value under scenario of progressive credit period. Presented at SCIXL-2008, 05 Jan. 2008, Ahmedabad. # 200
20. (Presented by Pathik) : A fuzzy set theory approach to battalion rostering problem. Presented at SCIXL-2008, 05 Jan. 2008, Ahmedabad. # 202
21. (Presented by Baharul) : Spacecraft Attitude modeling using coplannerity model. Presented at SCIXL-2008, 05 Jan. 2008, Ahmedabad. # 203
22. (Presented by Harsh) : Buyer – Supplier bargaining strategy. Presented at SCIXL-2008, 05 Jan. 2008, Ahmedabad. # 204
23. (Presented by Raiyan) : Inventory model for deteriorating items with two-bins and finite replenishment. Presented at SCIXL-2008, 05 Jan. 2008, Ahmedabad. # 205
24. (Presented by Ghanshyam) : Statistical analysis of clinical measures of levels of serum for chronic peridontitis. Presented at SCIXL-2008, 05 Jan. 2008, Ahmedabad. # 206
25. (Presented by H. M. Wee) : Optimal Strategy for an integrated vendor – buyer inventory system for deteriorating items with salvage value. Presented at CAT – 2008, 22 Jan. 2008, Australia. # 186
26. (Presented by Nidhi) : A time dependent deteriorating production inventory model with exponential decreasing demand. Presented at Mathematics Meet – 2008, 28 – 29 March, 2008, Ahmedabad. # 210
27. (Presented by Raiyan) : An order level lot size model for deteriorating items for two storage facilities when demand is exponentially decreasing. Presented at Mathematics Meet – 2008, 28 – 29 March, 2008, Ahmedabad. # 211
28. (Presented by Ankit) : A time dependent order level inventory model for exponentially declining demand. Presented at Mathematics Meet – 2008, 28 – 29 March, 2008, Ahmedabad. # 212
29. (Presented by Poonam) : Present value formulation of lot size inventory model for deteriorating items with shortages when demand depends on advertisement frequency and stock displayed. Presented at Mathematics Meet – 2008, 28 – 29 March, 2008, Ahmedabad. # 214
30. (Presented by Chetan) : An integrated vendor – buyer strategy when demand is quadratic. Presented at Mathematics Meet – 2008, 28 – 29 March, 2008, Ahmedabad. # 215

• – 2007)

1. (With Chirag J. Trivedi & Y. K. Shah) : An EOQ model for deteriorating items with a special sales promotional incentive scheme. Published in The Management Accountant, 41 (7), 534 – 535, 2006. # 42

1. (With Bhavin J. Shah & Y. K. Shah) : Present value formulation of OLLS model for time dependent deteriorating rate of items with stock – dependent demand under permissible delay in payments. Published in International Jr. of Combianatronics, Information and Systems Sciences, 2006. # 148 ISSN: 1077-8926
2. EOQ model for deteriorating items : A Buyer’s perspective. Published in Economic Computation and Economic Cybernetics Studies and Research, Vol. 39 (1 – 4), 265 – 270, 2006. # 69 ISSN: 0424-267x
3. (with Hardik Soni & Ajay S. Gor) : An EOQ model for progressive payment scheme under DCF – approach. Published in APJOR (Singapore), 23 (4), 509 – 524, 2006. # 161 ISSN: 0217-5959
4. (with Hardik Soni & Bhavin J. Shah) : An EOQ model for deteriorating items with progressive payment scheme under DCF – approach. Published in OPSEARCH, 43 (3), 238 – 258, 2006. # 162 ISSN: 0975 - 0320
5. (with Niketa J. Mehta) : Order – level lot – size model for deteriorating items with exponentially decreasing demand. Published in Mathematics Today, 22 (1), 45 – 52, 2006. # 123 ISSN: 0976 - 3228
6. (with Khadija H. Lokhandwala & Y. K. Shah) : Optimal ordering policies when anticipating parameters changes in EOQ system under random input. Published in The Aligarh Journal of Statistics, Vol. 26, 19 – 28, 2006. # 71 ISSN: 0971-0388
7. (with Ravi Gor) : Management of Damagable Merchandise. Published in Journal of Combinatronics, Information & System Sciences, Vol. 28 – 29, 109 – 115, 2006. # 163 ISSN: 1077 - 8926
8. Building E-business with Extranets and supply chain management. Published in Economy Informatics, Vol. 6 (1 – 4), 13 – 16, 2006. # 126 ISSN: 1582 - 7941

(with Ravi Gor) : An EOQ model for deteriorating items with price dependent demand and permissible delay in payments under inflation. Published in OPSEARCH (Special Issue on Supply Chain Management and Inventory Control), Vol. 43 (4), 376 – 388, 2006. # 147 ISSN: 0975 - 0320

1. (With Bhavin J. Shah and Y. K. Shah) : Present value formulation of Order – Level Lot – Size model for time dependent rate of deteriorating items with stock dependent demand under permissible delay in payments. Journal of Combinatorics, Information and System Sciences, 31 (1 – 4), 95 – 112, 2006. # 148 ISSN: 1077-8926
2. (With Bhavin J. Shah and Y. K. Shah) : Replenishment policy for time dependent deteriorating items under credit financing. Revista Investigacion Operacional, 27 (1), 21 – 30, 2006. # 138 ISSN: 0257-4306
3. (Presented by Hardik Soni, Bhasha Mankad & Pathik Mehta) : Fuzzy Mathematics and its applications in Disaster Management, Food – water quality control and health care. Gujarat Ganit Mandal, 27 Octo., 2006, Surat. # 179
4. (Presented by G. C. Patel) : The study of absorbency of Gingival Retraction cords. 25 –th convention of GSR, 14 Octo., 2006, Gandhinagar. # 181
5. (Presented by B. Islam) : A line based mathematical approach for classical calibration with sequential estimator. International Conference on Current Trends in Industrial & Applied Mathematics (ICCTIAM07), January 16 – 18, 2007, Vadodara. #183
6. (Presented by Hardik Soni & co-authored with Ajay S. Gor) : Inventory management of deteriorating vegetables with salvage value. XXI, Gujarat Science Congress, 11 March, 2007, Patan. # 184 (CD – PP No. 52, Part II)

(2005 – 2006)

1. (With Chirag J. Trivedi ) : An EOQ model for deteriorating items under permissible delay in payments when supply is random. Published in Revista Investigacion Operacional (CUBA), 26(2), 157 – 168, 2005. # 31 ISSN: 0257-4306
2. (With Ravi Gor) : A lot – size model with variable deterioration rate under supplier credits. Published in Journal of Applied Mathematical Analysis and Application, 1 (1), 65 – 76, 2005. # 133 ISSN: 0973-3868
3. (With Hardik Soni & Bhavin J. Shah) : Optimal ordering policy for progressive trade credit scheme under random input. Published in Proceeding of Sixth International Conf. on Opers. & Quant. Management, 683 – 690, August 9 – 11, 2005. # 168
4. (With Ravi Gor) : An EOQ model for deteriorating items with two parameters Weibull distribution deterioration under supplier credits. Published in Journal of Mathematics and Systems Sciences, 1 (1), 2 – 18, 2005. # 135 ISSN: 2159-5291
5. (With Ajay S. Gor) : An EOQ system when random chance of discounts are offered. Published in Vidya, 1 (2), 104 – 107, 2005. # 48
6. (with Vandana Dixit) : Price discount strategies : A review. Published in Revista Investigacion Operacional (Cuba), 26(1), 19 – 32, 2005. # 107 ISSN: 0257-4306
7. (With Khadiza Lokhandwala & Y. K. Shah) : Optimal ordering policies under conditions of extended payment privileges for deteriorating items. Published in Revista Investigacion Operacional (Cuba), 26(3), 1 – 8, 2005. # 72 ISSN: 0257-4306
8. Price discounts for extraordinary purchases when units in inventory deteriorate : The buyer’s perspective. Published in Indian Journal of Mathematics and Mathematical Sciences, 1 (2), 93 – 97, 2005. # 78 ISSN: 2159-5291

1. (With Bhavin J. Shah & Y. K. Shah) : EOQ model for time dependent deterioration rate with a temporary price discount. Published in APJOR, 22 (4), 479 – 485, 2005. # 141 ISSN: 0217-5959
2. Reverse Engineering tools and criteria for their selection. Published in Economic Computation and Economic Cybernetics Studies and Research, Vol. 39 (1 – 4), 213 – 224, 2005. # 115 ISSN: 0424-267x

1. (with Dinesh Barot & Y. K. Shah) : Deterministic inventory model for deteriorating items with inventory level dependent demand rate and shortages. Published in Economic Computation and Economic Cybernetics Studies and Research, Vol. 39 (1 – 4), 235 – 242, 2005. # 109 ISSN: 0424-267x
2. An EOQ model for items with two levels of storage for a linearly increasing demand. Published in Economic Computation and Economic Cybernetics Studies and Research, Vol. 39 (1 – 4), 243 – 247, 2005. # 67 ISSN: 0424-267x
3. (with Niketa Mehta) : Time varying decreasing demand for deteriorating items. Published in Journal of Applied Mathematical Analysis and Applications, Vol. 1 (2), 139 – 148, 2005. # 105
4. (with Niketa Mehta) : An inventory model with shortages and trended demand. Published in Journal of Applied Mathematical Analysis and Applications, Vol. 1 (2), 149 – 156, 2005. # 103
5. (with Khadiza Lokhandwala and Y. K. Shah) : Determination of the EOQ under permissible delay in payments allowing partial payment when quantity received is uncertain. Published in Panjab University Research Journal (Science), Vol. 55, 43 – 49, 2005. # 83 ISSN: 0555-7631
6. Inventory model for deteriorating items and time value of money for a finite time horizon under the permissible delay in payments. Published in International Journal of Systems Science, Vol. 37 (1), 9 – 15, 2006. # 110 ISSN  1464-5319
7. (with Bhavin J. Shah & Y. K. Shah) : Replenishment policy for time dependent deteriorating items under credit financing, Revista Investigacion Operacional (Cuba), Vol. 27 (1), 21 – 30, 2006. # 138 ISSN  0257-4306
8. An EOQ model for two level of credit period under random input.   Presented at ICOQM – 6, August 9 – 11, 2005, IIM – Indore. # 167
9. (Presented by Hardik Soni) : Optimal ordering policy for progressive trade credit scheme under random input. Presented at ICOQM – 6, August 9 – 11, 2005, IIM – Indore. # 168
10.  

Optimal ordering policy for stock-dependent demand under progressive payment scheme. Presented at ICORAID – 2005 – ORSI, Decm. 27 – 29, 2005, IISc. – Banglore. # 170

1. (Presented by Bhavin J. Shah) : Optimum replenishment policy for time dependent deteriorating items under credit financing. Presented at ICORAID – 2005 – ORSI, Decm. 27 – 29, 2005, IISc. – Banglore. # 138

1. (Presented by Bhavini Pandya) : Forecasting BSE Index Using Artificial Neural Networks. Presented at Gujarat Science Congress – 2006, 26 March, 2006, Ahmedabad. # 172

(2004 – 2005)

1. (with Manisha K. Parikh & Y. K. Shah) : Order level lot size inventory model with two suppliers. Published in Modelling, Measurement & Control, Vol. 25 (2), Series D, 29 – 40, 2004. # 91 ISSN: 0761-2516
2. (with Bhavin J. Shah and Y. K. Shah) : An Order - Level Lot-Size model with stock dependent demand for time dependent deterioration under permissible delay in payments. Published in Far East Jr. of Theoretical Statistics, Vol. 12, No. 2, 201 - 220, 2004. # 144 ISSN: 0972-0863

1. Probabilistic Order Level system when items in inventory deteriorate and delay in payments is permissible. Published in Asia - Pacific Jr. of Operational Research, Singapore, Vol. 21, N0. 3, 319 - 331, 2004.  # 14 ISSN: 0217-5959
2. (with Bhavin J. Shah and Y. K. Shah) : Present value formulation of lot - size model with exponential rate of deterioration. Published in Research Bulletin, Vol. 25, 24 - 27, 2004.   # 140
3. (with Y. K. Shah) : A note on (Tj , Sj) - policy for a deterministic inventory model with linear trend in demand. Published in Industrial Engineering Journal, Vol. 33 (11), 3 - 4, 2004.  # 52 ISSN: 0970-2555
4. (with Ravi Gor) : An order - level lot - size model with time dependent deterioration. Published in Journal of Current Sciences, 5 (1), 13 - 19, 2004.  # 136 ISSN: 0972- 6101
5. Cryptography in 21 - st century : A critical review. Published in Journal of Current Sciences, 5 (1), 327 - 336, 2004.    # 129 ISSN: 0972- 6101
6. (with Niketa J. Mehta) : Time varying increasing demand inventory model for deteriorating items. Published in Investigacon Operational (Cuba) Vol. 26 (1), 3 – 9, 2005.   # 131 ISSN: 0257-4306
7. (with Vandana M. Dixit) : Price discount strategies : A review. Published in Investigacon  Operational (Cuba) Vol. 26 (1), 19 – 32, 2005. # 107 ISSN: 0257-4306
8. (with Chirag J. Trivedi & Y. K. Shah) : An EOQ model with a special sales promotional incentive scheme. Published in Assam Statistical Review, Vol. 18 (1 – 2), 102 – 108, 2004. # 55 ISSN: 0976-4291

1. (With Ravi M. Gor & G. C. Patel) : Study of Collection – Distribution policy of blood components for Prathama Blood Bank. Published in Supply Chain Management in Global Enterprise (Proceeding of SOM – 8), 144 – 158, 2004. # 156

1. (With Hardik Soni) : Optimal ordering policies for exponentially deteriorating items under scenario of progressive credit period. Published in Far East Journal of Theoretical Statistics, Vol. 17 (1), 1 – 17, 2005. # 164 ISSN: 0972-0863
2. (Presented by Ravi Gor) :  An EOQ model for deteriorating items with price dependent demand and permissible delay in payments under inflation. Presented at International Conference on Operations Research, 8 - 11 Jan., 2004, Kolkata.  # 147
3. (Presented by Ravi Gor) : Study of collection – distribution policy of blood components for Prathama blood bank. SOM – IX, 17 – 19 Decm. 2004, Mumbai.       # 156
4. Dynamic programming formulation for enting CD’s . SCRA – 2004, FIM – XI, 27 – 29 Decm., 2004, Lukhnow.   # 160
5. (Presented by Nita H. Shah & co – authored with Hardik Soni, Ajay S. Gor) : An EOQ model for progressive payment scheme under DCF approach.  SCRA – 2004, FIM – XI, 27 – 29 Decm., 2004, Lukhnow.  # 161
6. (Presented by Bhavin J. Shah & co – authored with Hardik Soni) : A lot – size model for deteriorating items under progressive payment scheme : A DCF approach. SCRA – 2004, FIM – XI, 27 – 29 Decm., 2004, Lukhnow.    # 162
7. (Presented by Ravi Gor) : Management of damageable merchandise. SCRA – 2004, FIM – XI, 27 – 29 Decm., 2004, Lukhnow.   # 163
8. (Invited Talk) : Modeling HIV transmission & AIDS using differential equations, Instructional Seminar on Mathematical Modelling with special Emphasis on Industrial Mathematics, 21 March, 2005, Patan.   # 166

(2003 – 2004)

1. (with Arcelus F. & G. Srinivasan) : Retailer’s pricing, credit and inventory policies for deteriorating items in response to temporary price / credit incentives. Published in International Jr. of Production Economics (Netherlands), Vol. 81 - 82, 153 - 162, 2003.
2. (with Arcelus F. & G. Srinivasan) : Forward Buying Policies for deteriorating Items Under Price Sensitive Demand and Temporary Price Discounts. Published in International Jr. Of Operations and Quantitative Management, Vol. 9, N0. 2, 87 - 102, 2003.

1. (with Niketa J. Mehta) : A lot - size model for deteriorating items with exponentially increasing demand and shortages under inflation and time discounting. Published in Investigacao Operacional (Portugal), Vol. 23, 103 - 111, 2003.
2. (with Ravi Gor) : An order - level lot - size model with time dependent deterioration and permissible delay in payments. Published in Advances and Applications in Statistics, Vol. 3, No. 2, 159 - 172, 2003.
3. (with Bhavin J. Shah and Y. K. Shah) : Present value formulation of Economic Lot-size model for inventory system with variable deteriorating rate of items. Published in Economy Informatics, Vol. 3, No. 1 / 2, 37 - 40, 2003.
4. Desision making as an art : A cybernetic application. Published in Economic Computation & Economic Cybernetics Studies and Research, Vol. 36, No. 1 / 4, 2003.

1. A discrete – in – time EOQ model for dtriorating items under temporary price discount. Published in Assam Statistical Review, Vol. 17 (1), 1 – 6, 2003

1. (with Niketa J. Mehta) : An inventory model for deteriorating items with exponentially decreasing demand and shortages under inflation and time discounting. Published in Industrial Engineering Journal, Vol. 33 (4), 19 - 23, 2004.
2. (Invited Talk) : Analytic Hierarchy Process - A multiple criteria decision tool for inventory forecasting. Symposium on Optimization, Operations Research & Information, 3 - 4 Decm. 2003, Kolkata.
3. Staistics : Science of prediction. 24 -Gujarat Statistical conference, Oct. 11 - 12, 2003, Bhavanagar.
4. Information Technology : India’s Tomorrow. Presented on 9 Decm. in APORS - 2003, New Delhi.
5. (by Ravi Gor) : A lot - size model with variable deterioration rate under supplier credits. Presented on 9 Decm. in APORS - 2003, New Delhi.
6. (by Bhavin J. Shah) : EOQ model for time dependent detreioration rate under temporary price discount. Presented on 9 Decm. in APORS - 2003, New Delhi.
7. (by Ravi Gor) : An order - level lot - size model with time dependent deterioration. Presented on 26 Feb. 2003, Second Gujarat State Research Students Meet, V. V. nagar.
8. (by Bhavin J. Shah) : Classical EOQ with present value formulation. Presented on 26 Feb. 2003, Second Gujarat State Research Students Meet, V. V. nagar.
9. (by Ravi Gor) :  An EOQ model for deteriorating items with price dependent demand and permissible deley in payments under inflation. Presented at International Conference on Operations Research, 8 - 11 Jan., 2004, Kolkata.
10. (by Bhavin J. Shah) : An EOQ model with time dependent deterioration under discounted cash flow approach when supplier credits linked to order quantity. Presented at International Conference on Operations Research, 8 - 11 Jan., 2004, Kolkata.
11. (by Bhavin J. Shah) : An order - level lot - size inventory model with stick dependent demand for time time dependent deterioration under permissible delay in payments. Presented in Conference on Queues, Inventory, Reliability, Maintanance and Replacement, 19 - 22 Feb., 2004, Kochi.
12. (by Ravi Gor) : An EOQ model for deteriorating items with two parameters Weibull distribution deterioration under supplier credits. Presented at 24 -Gujarat Statistical conference, Oct. 11 - 12, 2003, Bhavanagar.
13. (by Ravi Gor) : An order - level lot - size model with time dependent deterioration and permissible delay in payments. Presented at 6-th Annual Conference of Society of Operations Management, 20 - 22 Decm., 2002, Kozikode.
14. (by Ravi Gor) : A time dependent deteriorating EOQ model with selling price and stock-dependent demand under conditions of permissible delay in payments. Presented at 7-th Annual Conference of Society of Operations Management, 19 - 21 Decm., 2003, Indore.

(2002 – 2003)

1. (with Ketan Gajjar) : A discrete - in - time EOQ model for deteriorating items under known price increase. Published in Aligarh Jr. of Statistics, Vol. 22, 11 - 16, 2002.
2. A deterministic inventory model for deteriorating items with time dependent demand and shortages for finite time horizon. Published in Modeling, Measurement & Control (France), Vol. 23, N0. 1/2, 47 - 54, 2002.

1. (with Ajay S. Gor & Dr. C. C. Gujarathi) : An EOQ model for deteriorating items with decreasing demand and shortages under inflation and time discounting. Published in Far East Jr. of Teoretical Statistics, Vol. 6, No. 2, 107 - 120, 2002.

(2001 – 2002)

1. A deterministic inventory model for deteriorating items with time dependent demand and shortages for finite time horizon. Modelling, Measurement & Control, Vol. 23, no. 1-2, 47 -55, 200
2. (with Ajay S. Gor &  C. C. Gujarathi) An EOQ model for deteriorating items with decreasing demand and shortages under inflation and time discounting. Far East Jr. of Theoretical Statistics, 6 (2), 2002, 107 – 120.
3. (with Ketan Gajjar) A discrete – in – time EOQ model for deteriorating items under known price increase. The  Aligarh Jr. of Statistics, 22, 2002, 11 – 16.

1. Mathematics as a tool for Economic and Social Issues. ICHHMS – 2002, Ernakulam, Kochi, Decm. 19 – 22, 2002.
2. Stochastic Calculus and Financial Analysis. ICIWIM – 2002, IIT – B, Mumbai, Decm 7 – 9, 2003
3. (by Ravi Gor) An order level lot size model with time dependent deterioration and permissible delay in payments. SOM – 2002, Kozikode, Decm 20 – 22, 2002

(2000 – 2001)

1. Determining selling price & procurement quantity with linear trend in demand. Economic computation & Economic Cybernetics Studies & Res.(Romania), 1 – 4, 2000
2. (with G. Srinavasan & F. Arcelus) Retailer’s response to special sales : Price discount vs trade credit. OMEGA (UK), 29 (5), 2000, 417 – 428.
3. (with Y. K. Shah) Literature survey on inventory models for deteriorating items. Economic Annals (Yuoslavia), 44, 2000, 221 – 237.

1. (Vandana Dixit) ith   A production inventory model for exponentially increasing demand and production. Modelling, Measurement & Control, 22 (3 – 4), 2001, 15 – 24.

1. (Niketa J. Mehta) An inventory model for time varying demand and planned shortages. Economic computation & Economic Cybernetics Studies & Res.(Romania), 1 – 4, 2001.
2. A deterministic inventory model for deteriorating items with time dependent demand and shortages for finite time horizon. Modelling, Measurement & Control, Vol. 23, no. 1-2, 47 -55, 2002

1. Supply chain Management : An Integrated framework. Proc. OMC – 4, Chennai, 2000, 75 – 81.

1. (Ajay S. Gor)  An inventory model under the influence of marketing policies with variable mark - up under price change anticipation. Operations Research (Narosa Publishers), 2000, 117 – 120.
2. Optimal selling price and procurement quantity : Diversification under yield randomness in inventory models, Ind. Engg. Jr., 30 (3), 2001, 12 – 15.
3. (with Manisha K.Parikh & Y. K. Shah) Diversification in EOQ model for deteriorating items. Jr. of Decisions and Mathematical  Sciences, 5 – 6, 2001, 7 – 14.

1. (by Dinesh Barot ) Deterministic inventory model for deteriorating items with inventory level dependent demand rate and shortages. ORSI – 33, IIM – Ahmedabad, 2000.

1. (by Ajay  S. Gor) Determination of the EOQ model for deteriorating items with permissible credit period requiring partial payment.       ORSI – 33, IIM – Ahmedabad, 2000.
2. (by Niketa J. Mehta) Time varying decreasing demand inventory model for deteriorating items.ORSI – 33, IIM – Ahmedabad, 2000.
3. An EOQ model for deteriorating items with decreasing demand and shortages under inflation and time discounting. ORSI – 33, IIM – Ahmedabad, 2000.
4. Supply Chain Management : An integrated framework.  OMC – 4, IIT – Madras, 14 – 16, Decm.,  Chennai, 2000.

(1999 – 2000)

1. Determining selling price & procurement quantity with linear trend in demand, Economic computation & Economic Cybernetics Studies & Res.(Romania), 1 – 4, 2000    # 65
2. (G. Srinavasan & F. Arcelus) : Retailer’s response to special sales : Price discount vs trade credit, OMEGA (UK), 29 (5), 2000, 417 – 428.   # 84
3. (Y. K. Shah) : Literature survey on inventory models for deteriorating

items, Economic Annals (Yuoslavia), 44, 2000, 221 – 237.    # 98

1. Supply chain Management : An Integrated framework, Proc. OMC – 4,

Chennai, 2000, 75 – 81.   # 106

1. (t, Sj) – policy with exponentially increasing demand, IAPQR, 25 (1), 2000 # 63 - 64
2. (Ajay S. Gor) : An inventory model under the influence of marketing policies with variable mark - up under price change anticipation, Operations Research (Narosa Publishers), 2000, 117 – 120. # 43
3. Literature Survey on Inventory models for deteriorating items, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad # 98
4. (presented by Ajay S. Gor) : Determination of EOQ model for deteriorating items with permissible credit period requiring partial payment, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad # 89
5. (presented by Manisha Parikh) : Diversification under yield randomness in inventory models, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad #  90
6. (presented by Vasudha Warrior) : A periodic review : Reorder point inventory model for deteriorating items with mixture of the backorders and lost sales, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad # 75
7. (presented by Vandana Dixit) : A production inventory model for exponentially increasing demand and production, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad # 97
8. (presented by Dinesh Barot) : Inventory model under marketing policies and stock dependent consumption rate, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad # 101
9. (presented by Niketa J. Mehta) : Time dependent inventory model with planned shortages, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad # 100
10. (presented by S. B. Bhavsar) : (Tj,Sj) – policy inventory model with demand changing exponentially with time, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad #
11. (presented by S. B. Bhavsar) : Deterministic inventory model with exponential trend in demand and random lead – time, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad
12. (presented by Chirag J. Trivedi) : An EOQ model for deteriorating items under permissible delay period when supply is random, National Seminar on “Inv. Control & Mgmt.”, 22 – 24, Feb., 2000, Ahmedabad # 31
13. Supply Chain Management : An integrated framework, OMC – 4, IIT –

Madras, 14 – 16, Decm.,  Chennai, 2000.   # 106

(1998 – 99)

1. (Chirag J.Trivedi) : An analytical inventory model for exponentially deteriorating inventory with random lead – time under random input. YUJOR (Yuoslavia), 9 (2), 1999, 183 – 196. #   23
2. (Manisha K.Parikh & Y. K. Shah) : Diversification in EOQ model, Kybernetics (UK), 28 (3), 1999, 319 – 324. # 60
3. (Ajay S. Gor) : An inventory model under the influence of marketing policies with variable mark-up and temporary price discount, Investigacion Operacional (Cuba), 20 (2), 1999, 102 – 105.   # 44
4. (Vasudha Warrier) : A lot – size model with mixture of back – logging and lost – sales for deteriorating items when the amount received is uncertain, IJSS (UK) , 30 (2), 1999, 205 – 210. # 74
5. (Khadija & Y. K. Shah) : Optimal ordering policies when anticipating a disruption in supply (A modified approach), Jr. of Statistics & Management Systems, 2 (1), 1999, 97 – 102. # 79
6. (presented by Vasudha Warrior) : Inventory model for deteriorating items when the quantity backordered is uncertain, Mysore Conf. , 1999 #
7. (presented by Ajay Gor) : Optimal ordering policies under various marketing criteria with price change anticipation, National Conf. on Statistical modeling, 25 – 27, Novm., 1999, Kolhapur. # 96
8. (presented by Vasudha Warrior) : EOQ system under the influences of marketing policies when random chance of discount is offered, ICOQM – II, 3 – 6, Jan., 1999, Ahmedabad. # 77
9. (presented by Manisha Parikh) : Diversification in EOQ model for deteriorating items under random yield, ICOQM – II, 3 – 6, Jan., 1999, Ahmedabad. # 92

(1997 – 98)

1. (Y. K. Shah) : A discrete – in – time probabilistic time scheduling model for deteriorating items under conditions of permissible delay in payments.  IJSS (UK), 29 (2), 1998, 121 – 125.    # 30
2. A discrete – in – time probabilistic inventory model for deteriorating items under known price increase, IJSS (UK), 29 (2), 1998, 121 – 125.    # 20
3. (Y. K. Shah) : Discrete – in time EOQ model for deteriorating items with random lead time, Investigacion Operacional (Cuba), 19 (1), 1998, 64 – 68.    # 26
4. (Ajay S. Gor) :  Order – level lot – size system when random chance of discount are offered, Int. Jr. of Modelling & Simulation (France), 18 (1), 1998, 82 – 83.    # 49
5. A discrete – in  - time probabilistic inventory model for deteriorating items under temporary price discount, Assam Statistical Review, 12 (2), 1998, 85 – 92.   # 18
6. (Y. K. Shah) : A discrete – in – time EOQ model with random lead – time. Ind. Enggi. Jr., 27 (1), 1998, 2 – 3.  # 24

1. (Manisha K.Parikh & Y. K. Shah) : EOQ model with two sources of suppliers with finite production rate, Ind. Enggi. Jr., 27 (9), 1998, 25 – 27. # 58
2. Order – level lot – size inventory model with two suppliers, National Conf. “Business competitiveness and growth through quantitative methods”, Chennai, 1998.   #  91
3. (presented by Vandana M. Dixit) : Trees : Algorithms & Applications at National seminar on “Recent Trends & Advances of Mathematics and Statistics in Engineering and Technology” , 28 – 29 Novm., Dhanbad, 1997. # 87
4. (presented by Ajay S. Gor) : An inventory model under influence of marketing policies with variable markup under price change anticipation, ICORBT – 98, 24 – 26, Decm. Delhi, 1998. # 43

(1996 – 97)

1. (Vasudha Warrior) : Probabilistic order – level system with a mixture of backorders and lost – sales, Investigacion Operacional (Cuba), 18 (1 – 3), 1997, 81 – 85. # 53
2. Probabilistic order – level system with lead – time when delay in payments is permissible, TOP (Spain), 5 (2), 1997, 297 – 305. # 13
3. (S. B. Bhavsar & Y. K. Shah) : (Tj, Sj) – policy with increasing demand when delay in payments is permissible, Research Bulletin (Sci.) of Punjab Uni., 47 ( 1 – 4), 1997, 115 121. # 54
4. (Y. K. Shah) : An EOQ system under random supply when random chance of discount is offered, Mathematics Today, 15, 1997, 61 – 66. # 50
5. (Vasudha Warrior) : Order – level system with a mixture of backorders and lost sales for deteriorating items, Proc. Of ICOQM – I, 2, 1997, 388 – 394. # 56
6. (Khadija & Y. K. Shah) : Optimal ordering policies when anticipating parameter changes in an EOQ system for deteriorating items, Proc. Of ICOQM – I, 2, 1997, 364 – 371 # 70
7. (S. B. Bhavsar & Y. K. Shah) : Increasing demand and (S, q) – policy with random lead – time, Proc. Of ICOQM – I, 2, 1997, 372 – 380 #  39
8. (S. B. Bhavsar & Y. K. Shah) : Increasing demand and (t, Sj) – policy with random lead – time, Proc. Of ICOQM – I, 2, 1997, 372 – 380  # 40
9. (Ajay S. Gor) : An EOQ model for deteriorating inventory when random chance of discount are offered, Proc. Of ICOQM – I, 2, 1997, 381 – 387. # 51
10. (presented by Chirag J. Trivedi) : A lot – size model for exponentially decaying items under temporary price discount when supply is random, GSA, 14 – 17, Novm., Ahmedabad, 1996. # 35
11. (presented by Khadiza L.) : An alternative approach in classical EOQ model, GSA, 17 – 18, Feb., Ahmedabad, 1996. # 68

(1995 – 96)

1. (Chirag J. Trivedi) : An EOQ model with random lead – time under random input, Economic computation & Economic Cybernetics Studies & Res.(Romania), 30 (1 – 4), 1996, 101 – 111.      # 22
2. Probabilistic scheduling period inventory model under known price increase, Ind. Enggi. Jr., 25 (4), 1996, 17 – 20     # 6
3. (Y. K. Shah) : Optimal ordering policies under conditions of extended payment privileges, Bulletin of Pure and Applied Sciences, 15 E (1), 1996, 37 – 45.    # 32
4. (Chirag J. Trivedi & Y. K. Shah) : An EOQ model for exponentially decaying inventory under price change anticipation when supply is random, IJOMS, 12 (2), 1996, 225 – 234.    # 36
5. A discrete – in – time probabilistic inventory model for deteriorating items under known price increase. M. S. University Journal, XLII & XLIII (3), 1995 – 1996, 63 – 74. # 20

(1994 – 95)

1. (Ajay S. Gor) : An analytical inventory model for exponentially deteriorating inventory under the influence of marketing policies with variable mark – up under price change anticipation, Economic computation & Economic Cybernetics Studies & Res.(Romania), 28 (1 – 4), 1994, 81 – 89. # 45
2. (Ajay S. Gor) : Order – level Lot – size inventory model for deteriorating items under random supply, Ind. Enggi. Jr., 23 (1), 1994, 9 – 15. # 21
3. (Y. K. Shah & Pradeep Jha) : Single period stochastic inventory model under variable optimization criteria and variable markup, 1995 # 19
4. An analytic inventory model for exponentially deteriorating inventory

lead – time. Int. Conf. on Stochastic Modeling , Delhi, 10 – 12 Jan. 1994.   # 16

1. (PRESENTED) Single period stochastic inventory models under various optimization criteria and variable mark – up, Int. Conf. on Stochastoc model Optimization Techniques & Computer Applications, Coimbatore, 1994. # 19  
2. (presented by Ajay S. Gor) : Optimal marketing policies with variable markup for deteriorating inventory under random input, ORSI – 27, IIM Calcutta, 1994. # 37
3. Optimal ordering policies under various marketing policies under conditions of extended payment privilege, INFORMS International - I Singapore, 25 – 28, June, 1995.   # 33

(1993 – 94)

1. A lot – size model for exponentially decaying inventory when delay payments is permissible, Cahiers du CERO (Belgium) 35 (1 – 2), 1993, 1 – 9.    # 3
2. An EOQ model for exponentially decaying inventory under temporary price discount. Cahiers du CERO (Belgium), 35 (1 – 2), 1993, 227 – 232. # 5
3. A probabilistic order – level system when delay in payments is permissible. Jr. of the Korean Operations Research & Mgmt. Sci. Soc. (Korea), 18 (2), 1993, 175 – 183. # 11
4. Probabilistic time scheduling model for exponentially decaying inventory when delay in payments is permissible, IJPE (Netherlands), 32, 1993, 77 – 82. # 12
5. (Y. K. Shah) : A lot – size model fro exponentially decaying inventory under known price increase, Ind. Enggi. Jr., 22 (2), 1993, 1 – 3. # 4
6. (Y. K. Shah) : Probabilistic – time – scheduling model exponentially decaying inventory under known price increase, IJOMS, 9 (2), 1993, 137 – 145.    # 8
7. (Y. K. Shah) : Probabilistic – time – scheduling model exponentially decaying inventory under temporary price discount, JIOS, 14 (2), 1993, 117 – 124. # 9
8. (Chirag J. Trivedi & Y. K. Shah) : EOQ model under temporary price discount when supply is random, Economic computation & Economic Cybernetics Studies & Res.(Romania), 28 (1 – 4), 1994, 81 – 89. #  34

(1992 – 93)

1. (Y. K. Shah) :An EOQ model for deteriorating items under random supply, Ind. Enggi. Jr., 21 (7), 1992, 13 – 18. # 1
2. (Y. K. Shah) : A lot – size model with finite production rate for deteriorating items under random supply, Research Bulletin, 11 (1 – 2), 1992, 76 – 79. # 2
3. A probabilistic order level system when delay in payments is permissible, ORSI – 25, IIM Ahmedabad, 17 -1 9, Decm. 1992. # 10