All Stories

  1. Inventory Decisions with Carbon Emissions, Partial Backlogging and Price-Stock-Dependent Demand

    Article • January 2025, Springer Science + Business Media

    Nita Shah

  2. An EPQ model to study the parallel production of two items in a multistage production system

    Article • International Journal of Systems Assurance Engineering and Management, October 2024, Springer Science + Business Media

    Nita Shah

  3. EXPLORING DIURNAL PATTERNS: DROP SIZE AND RAINFALL RATE DYNAMICS AT SHILLONG STATION

    Article • International Journal of Engineering Science Technologies, April 2024, Granthaalayah Publications and Printers

    Nita Shah

  4. Decoding spatial precipitation patterns using artificial intelligence

    Article • Spatial Information Research, December 2023, Springer Science + Business Media

    Nita Shah

  5. Mathematical and Computational Modelling of Covid-19 Transmission

    Article • October 2023, Taylor & Francis

    Nita Shah

  6. Non-instantaneous controlled deteriorating inventory model for stock-price-advertisement dependent probabilistic demand under trade credit financing

    Article • OPSEARCH, October 2023, Springer Science + Business Media

    Nita Shah

  7. A sustainable production inventory model with green technology investment for perishable products

    Article • Decision Analytics Journal, September 2023, Elsevier

    Nita Shah

  8. Acute Fatty Liver of Pregnancy Complicated with Sepsis

    Article • Gene Expression, July 2023, Xia & He Publishing

    Nita Shah

  9. Integrated optimization of inventory, replenishment, and vehicle routing for a sustainable supply chain utilizing a novel hybrid algorithm with carbon emission regulation

    Article • Expert Systems with Applications, June 2023, Elsevier

    Nita Shah

  10. Optimal Procurement of COVID-19 Vaccine with Time-Dependent Holding Cost and Shortages under Cloud Fuzzy Demand Rate

    Article • Journal of Uncertain Systems, March 2023, World Scientific Pub Co Pte Lt

    Nita Shah

  11. Cone

    Article • January 2023, Taylor & Francis

    Nita Shah

  12. Plane

    Article • January 2023, Taylor & Francis

    Nita Shah

  13. Sphere

    Article • January 2023, Taylor & Francis

    Nita Shah

  14. Cylinder

    Article • January 2023, Taylor & Francis

    Nita Shah

  15. Central Conicoid

    Article • January 2023, Taylor & Francis

    Nita Shah

  16. Straight Line

    Article • January 2023, Taylor & Francis

    Nita Shah

  17. Homotopy Perturbation Method for Pneumonia–HIV Co-Infection

    Article • Foundations, December 2022, MDPI AG

    Nita Shah

  18. Pricing Decisions with Effect of Advertisement and Greening Efforts for a Greengocer

    Article • Sustainability, October 2022, MDPI AG

    Nita Shah

  19. Modelling COVID-19 transmission in the United States through interstate and foreign travels and evaluating impact of governmental public health interventions

    Article • Journal of Mathematical Analysis and Applications, October 2022, Elsevier

    Nita Shah

  20. Integral Transforms and Applications

    Article • September 2022, De Gruyter

    Nita Shah

  21. Fractional-order model on vaccination and severity of COVID-19

    Article • International Journal of Dynamics and Control, September 2022, Springer Science + Business Media

    Nita Shah

  22. Mathematical model for transmission of Chlamydia due to sexual activity and unhygienic environment

    Article • Exploration of Medicine, August 2022, Open Exploration Publishing

    Nita Shah

  23. A New Defuzzification Method for Cost Analysis of Economic Order Quantity under Cloud Pentagonal Fuzzy Demand

    Article • International Journal of Fuzzy System Applications, May 2022, IGI Global

    Nita Shah

  24. Vertical Transmission of Syphilis With Control Treatment

    Article • May 2022, IGI Global

    Nita Shah

  25. Greening efforts and deteriorating inventory policies for price-sensitive stock-dependent demand

    Article • International Journal of Systems Science Operations & Logistics, January 2022, Taylor & Francis

    Nita Shah

  26. Optimal Inventory Policies for Price and Time Sensitive Demand Under Advertisement

    Article • Recent Advances in Computer Science and Communications, January 2022, Bentham Science Publishers

    Nita Shah

  27. Optimization, Decision-making and Artificial Intelligence

    Article • Recent Advances in Computer Science and Communications, January 2022, Bentham Science Publishers

    Nita Shah

  28. Investigation of carbon emissions due to COVID-19 vaccine inventory

    Article • International Journal of Systems Assurance Engineering and Management, September 2021, Springer Science + Business Media

    Nita Shah

  29. Retailer’s inventory decisions with exchange scheme under the effect of advertisement efforts

    Article • Journal of Industrial and Production Engineering, August 2021, Taylor & Francis

    Nita Shah

  30. Retailer’s inventory decisions with promotional efforts and preservation technology investments when supplier offers quantity discounts

    Article • OPSEARCH, March 2021, Springer Science + Business Media

    Nita Shah

  31. An Inventory Model for Deteriorating Items with Constant Demand Under Two-Level Trade-Credit Policies

    Article • January 2021, Springer Science + Business Media

    Nita Shah

  32. Upper-Lower Bounds for the Profit of an Inventory System Under Price-Stock Life Time Dependent Demand

    Article • January 2021, Springer Science + Business Media

    Nita Shah

  33. Inverse Linear Transformation

    Article • December 2020, Taylor & Francis

    Nita Shah

  34. General Linear Transformations

    Article • December 2020, Taylor & Francis

    Nita Shah

  35. Multiple-Choice Questions

    Article • December 2020, Taylor & Francis

    Nita Shah

  36. Determinants

    Article • December 2020, Taylor & Francis

    Nita Shah

  37. Matrices

    Article • December 2020, Taylor & Francis

    Nita Shah

  38. More about Matrices

    Article • December 2020, Taylor & Francis

    Nita Shah

  39. Unconstrained Multivariable Optimization

    Article • December 2020, Taylor & Francis

    Nita Shah

  40. Constrained Multivariable Optimization

    Article • December 2020, Taylor & Francis

    Nita Shah

  41. Journey from Natural Numbers to Complex Numbers

    Article • December 2020, Taylor & Francis

    Nita Shah

  42. Rational Numbers

    Article • December 2020, Taylor & Francis

    Nita Shah

  43. Real Numbers

    Article • December 2020, Taylor & Francis

    Nita Shah

  44. Integers

    Article • December 2020, Taylor & Francis

    Nita Shah

  45. Multi-zonal transmission dynamics of pandemic COVID-19 and its stability

    Article • Journal of Safety Science and Resilience, December 2020, Elsevier

    Nita Shah

  46. Fractional order model for yield through diagnosed/undiagnosed soil

    Article • São Paulo Journal of Mathematical Sciences, November 2020, Springer Science + Business Media

    Nita Shah

  47. Constrained Multivariable Optimization

    Article • November 2020, Taylor & Francis

    Nita Shah

  48. Unconstrained Multivariable Optimization

    Article • November 2020, Taylor & Francis

    Nita Shah

  49. Mathematical modeling on investments in burning and recycling of dumped waste by plastic industry

    Article • International Journal of Environmental Science and Technology, July 2020, Springer Science + Business Media

    Nita Shah

  50. Z-Control on COVID-19-Exposed Patients in Quarantine

    Article • International Journal of Differential Equations, June 2020, Hindawi Publishing Corporation

    Nita Shah

  51. Dynamics of malaria-dengue fever and its optimal control

    Article • An International Journal of Optimization and Control Theories & Applications (IJOCTA), June 2020, International Journal of Optimization and Control: Theories and Applications

    Nita Shah

  52. Modelling COVID-19 Transmission in the United States through Interstate and Foreign Travels and Evaluating Impact of Governmental Public Health Interventions

    Article • May 2020, Cold Spring Harbor Laboratory Press

    Nita Shah

  53. Modelling the impact of Plasma Therapy and Immunotherapy for Recovery of COVID-19 Infected Individuals

    Article • May 2020, Cold Spring Harbor Laboratory Press

    Nita Shah

  54. Control Strategies to Curtail Transmission of COVID-19

    Article • International Journal of Mathematics and Mathematical Sciences, May 2020, Hindawi Publishing Corporation

    Nita Shah

  55. Modeling the Impact of Nationwide BCG Vaccine Recommendations on COVID-19 Transmission, Severity, and Mortality

    Article • May 2020, Cold Spring Harbor Laboratory Press

    Nita Shah

  56. Global dynamics of COPD and tuberculosis among smokers

    Article • Proyecciones (Antofagasta), April 2020, Universidad Catolica del Norte - Chile

    Nita Shah

  57. Dynamics of HIV-TB Co-Infection Model

    Article • Axioms, March 2020, MDPI AG

    Nita Shah

  58. Mathematical Model to Analyze Effect of Demonetization

    Article • January 2020, IGI Global

    Nita Shah

  59. Vertical Transmission of Syphilis With Control Treatment

    Article • January 2020, IGI Global

    Nita Shah

  60. Optimal control of HCV transmission under liquoring

    Article • Journal of Theoretical Biology, March 2019, Elsevier

    Nita Shah

  61. Effect of manufacturer’s innovation and retailer’s promotion under trapezoidal demand with centralized and decentralized options

    Article • Top, October 2018, Springer Science + Business Media

    Nita Shah

  62. Inventory policies for deteriorating items with time-price backlog dependent demand

    Article • International Journal of Systems Science Operations & Logistics, August 2018, Taylor & Francis

    Nita Shah

  63. Integrating credit and replenishment policies for deteriorating items under quadratic demand in a three echelon supply chain

    Article • International Journal of Systems Science Operations & Logistics, June 2018, Taylor & Francis

    Nita Shah

  64. Optimal control analysis for service, inventory and preservation technology investment

    Article • International Journal of Systems Science Operations & Logistics, March 2018, Taylor & Francis

    Nita Shah

  65. Optimal replenishment time for retailer under partial upstream prepayment and partial downstream overdue payment for quadratic demand

    Article • Mathematical and Computer Modelling of Dynamical Systems, May 2017, Taylor & Francis

    Nita Shah

  66. Congenital Transmission of Chagas with Control Dropouts and Spraying

    Article • International Journal of Applied and Computational Mathematics, April 2017, Springer Science + Business Media

    Nita Shah

  67. EPQ model for returned/reworked inventories during imperfect production process under price-sensitive stock-dependent demand

    Article • Operational Research, September 2016, Springer Science + Business Media

    Nita Shah

  68. Imperfect production inventory model for time and effort dependent demand under inflation and maximum reliability

    Article • International Journal of Systems Science Operations & Logistics, September 2016, Taylor & Francis

    Nita Shah

  69. Economic order quantity for deteriorating items under inflation with time and advertisement dependent demand

    Article • OPSEARCH, July 2016, Springer Science + Business Media

    Nita Shah

  70. Optimal Policies for Time-Varying Deteriorating Item with Preservation Technology Under Selling Price and Trade Credit Dependent Quadratic Demand in a Supply Chain

    Article • International Journal of Applied and Computational Mathematics, February 2016, Springer Science + Business Media

    Nita Shah

  71. A simulation- and genetic algorithm-based optimisation of closed-loop multi-echelon inventory system

    Article • International Journal of Mathematics in Operational Research, January 2016, Inderscience Publishers

    Nita Shah

  72. Three-layered integrated inventory model for deteriorating items with quadratic demand and two-level trade credit financing

    Article • International Journal of Systems Science Operations & Logistics, August 2015, Taylor & Francis

    Nita Shah

  73. Manufacturer-retailer inventory model for deteriorating items with price-sensitive credit-linked demand under two-level trade credit financing and profit sharing contract

    Article • Cogent Engineering, February 2015, Taylor & Francis

    Nita Shah

  74. EPQ model for imperfect production processes with rework and random preventive machine time for deteriorating items and trended demand

    Article • Yugoslav journal of operations research, January 2015, National Library of Serbia

    Nita Shah

  75. Influence of Slope Angle on the Walking of Passive Dynamic Biped Robot

    Article • Applied Mathematics, January 2015, Scientific Research Publishing, Inc,

    Nita Shah

  76. Liquor Habit Transmission Model

    Article • Applied Mathematics, January 2015, Scientific Research Publishing, Inc,

    Nita Shah

  77. Optimal Pricing and Ordering Policies for Inventory System with Two-Level Trade Credits Under Price-Sensitive Trended Demand

    Article • International Journal of Applied and Computational Mathematics, September 2014, Springer Science + Business Media

    Nita Shah

  78. Retailer’s replenishment and credit policies for deteriorating inventory under credit period-dependent demand and bad-debt loss

    Article • Top, August 2014, Springer Science + Business Media

    Nita Shah

  79. Optimal Cycle Time and Preservation Technology Investment for Deteriorating Items with Price-sensitive Stock-dependent Demand Under Inflation

    Article • Journal of Physics Conference Series, April 2014, Institute of Physics Publishing

    Nita Shah

  80. Optimal Preservation Technology Investment, Retail Price and Ordering Policies for Deteriorating Items under Trended Demand and Two Level Trade Credit Financing

    Article • Journal of Mathematical Modelling and Algorithms in Operations Research, March 2014, Springer Science + Business Media

    Nita Shah

  81. Optimal credit period and purchase quantity for credit dependent trended demand

    Article • OPSEARCH, February 2014, Springer Science + Business Media

    Nita Shah

  82. Deterministic Mathematical Model for Dynamics of Water Borne Diseases

    Article • Advances in Research, January 2014, Sciencedomain International

    Nita Shah

  83. Optimal Policies for Deteriorating Items with Maximum Lifetime and Two-Level Trade Credits

    Article • International Journal of Mathematics and Mathematical Sciences, January 2014, Hindawi Publishing Corporation

    Nita Shah

  84. Optimal transfer, ordering and payment policies for joint supplier–buyer inventory model with price-sensitive trapezoidal demand and net credit

    Article • International Journal of Systems Science, October 2013, Taylor & Francis

    Nita Shah

  85. Stackelberg game for two-level supply chain with price markdown option

    Article • International Journal of Computer Mathematics, August 2013, Taylor & Francis

    Nita Shah

  86. EPQ Model for Trended Demand with Rework and Random Preventive Machine Time

    Article • ISRN Operations Research, June 2013, Hindawi Publishing Corporation

    Nita Shah

  87. Optimizing inventory and marketing policy for non-instantaneous deteriorating items with generalized type deterioration and holding cost rates

    Article • Omega, April 2013, Elsevier

    Nita Shah

  88. Joint Optimal Policy for Variable Deteriorating Inventory System of Vendor-Buyer Ordering with Trapezoidal Demand

    Article • British Journal of Applied Science & Technology, January 2013, Sciencedomain International

    Nita Shah

  89. SEIR Model and Simulation for Vector Borne Diseases

    Article • Applied Mathematics, January 2013, Scientific Research Publishing, Inc,

    Nita Shah

  90. A note on ‘a replenishment policy for items with price-dependent demand, time-proportional deterioration and no shortages’

    Article • International Journal of Systems Science, December 2012, Taylor & Francis

    Nita Shah

  91. Oil production optimization: a mathematical model

    Article • Journal of Petroleum Exploration and Production Technology, November 2012, Springer Science + Business Media

    Nita Shah

  92. Deteriorating inventory model with finite production rate and two-level of credit financing for stochastic demand

    Article • OPSEARCH, October 2012, Springer Science + Business Media

    Nita Shah

  93. Vendor-buyer ordering policy when demand is trapezoidal

    Article • International Journal of Industrial Engineering Computations, October 2012, Growing Science

    Nita Shah

  94. Continuous Review Inventory Model with Fuzzy Stochastic Demand and Variable Lead Time

    Article • International Journal of Applied Industrial Engineering, July 2012, IGI Global

    Nita Shah

  95. Optimal pricing and ordering policy for an integrated inventory model with quadratic demand when trade credit linked to order quantity

    Article • Journal of Modelling in Management, June 2012, Emerald

    Nita Shah

  96. EOQ in fuzzy environment and trade credit

    Article • International Journal of Industrial Engineering Computations, January 2012, Growing Science

    Nita Shah

  97. A Multi-Objective Production Inventory Model with Backorder for Fuzzy Random Demand Under Flexibility and Reliability

    Article • Journal of Mathematical Modelling and Algorithms, September 2011, Springer Science + Business Media

    Nita Shah

  98. Single Supplier–Buyer Integrated Inventory Model Under Multiple JIT Delivery and Stock-Dependent Demand

    Article • Journal of Mathematical Modelling and Algorithms, July 2011, Springer Science + Business Media

    Nita Shah

  99. Optimal policy for fuzzy expected value production inventory model with imprecise production preparation-time

    Article • International Journal of Machine Learning and Cybernetics, May 2011, Springer Science + Business Media

    Nita Shah

  100. Optimal ordering policies for Weibull distribution deterioration with associated salvage value under scenario of progressive credit periods

    Article • OPSEARCH, March 2011, Springer Science + Business Media

    Nita Shah

  101. An integrated deteriorating inventory model with permissible delay in payments and price-sensitive stock-dependent demand

    Article • International Journal of Operational Research, January 2011, Inderscience Publishers

    Nita Shah

  102. Continuous review inventory model for fuzzy price dependent demand

    Article • International Journal of Modelling in Operations Management, January 2011, Inderscience Publishers

    Nita Shah

  103. Coordinate inventory models with two-level credit policy and a price negotiation scheme in declining market

    Article • International Journal of Data Analysis Techniques and Strategies, January 2011, Inderscience Publishers

    Nita Shah

  104. Determination of optimal pricing, shipment and payment policies for an integrated supplier buyer deteriorating inventory model in buoyant market with two-level trade credit

    Article • International Journal of Operational Research, January 2011, Inderscience Publishers

    Nita Shah

  105. Integrated inventory models with two–level credit policy and a price negotiation scenario for price–sensitive Stock–dependent demand

    Article • International Journal of Industrial Engineering Computations, January 2011, Growing Science

    Nita Shah

  106. Optimal coordinated supply chain strategy with price and time sensitive demand

    Article • International Journal of Business Performance and Supply Chain Modelling, January 2011, Inderscience Publishers

    Nita Shah

  107. Optimal ordering and pricing policy for price sensitive stock–dependent demand under progressive payment scheme

    Article • International Journal of Industrial Engineering Computations, January 2011, Growing Science

    Nita Shah

  108. Periodic review inventory model with service level constraint in fuzzy environment

    Article • International Journal of Applied Decision Sciences, January 2011, Inderscience Publishers

    Nita Shah

  109. Supply chain inventory model for deteriorating items under two-level credit policy in declining market

    Article • International Journal of Applied Management Science, January 2011, Inderscience Publishers

    Nita Shah

  110. Optimal production schedule in declining market for an imperfect production system

    Article • International Journal of Machine Learning and Cybernetics, September 2010, Springer Science + Business Media

    Nita Shah

  111. An Integrated Approach for Optimal Unit Price and Credit Period for Deteriorating Inventory System when the Buyer's Demand is Price Sensitive

    Article • American Journal of Mathematical and Management Sciences, February 2010, Taylor & Francis

    Nita Shah

  112. A Lot-Size Model for Deteriorating Items under Conditions of a One-Time Only Extended Credit Period

    Article • International Journal of Mathematics and Mathematical Sciences, January 2010, Hindawi Publishing Corporation

    Nita Shah

  113. An EOQ model for deteriorating items under supplier credits when demand is stock dependent

    Article • Yugoslav journal of operations research, January 2010, National Library of Serbia

    Nita Shah

  114. Integrated deteriorating inventory model when order quantity is linked to freight rate and credit period

    Article • International Journal of Modelling in Operations Management, January 2010, Inderscience Publishers

    Nita Shah

  115. Joint optimal production-inventory model with imperfect production processes and varying deterioration rate in buoyant market

    Article • International Journal of Operational Research, January 2010, Inderscience Publishers

    Nita Shah

  116. Single vendor and multiple buyers integrated inventory system when demand is quadratic

    Article • International Journal of Business Performance and Supply Chain Modelling, January 2010, Inderscience Publishers

    Nita Shah

  117. An integrated economic lot-size model for vendor–buyer inventory system when input is random

    Article • Mathematical and Computer Modelling, April 2009, Elsevier

    Nita Shah

  118. Ordering policy for stock-dependent demand rate under progressive payment scheme

    Article • International Journal of Systems Science, January 2009, Taylor & Francis

    Nita Shah

  119. A lot size inventory model for the Weibull distributed deterioration rate with discounted selling price and stock-dependent demand

    Article • International Journal of Data Analysis Techniques and Strategies, January 2009, Inderscience Publishers

    Nita Shah

  120. Optimal Transfer-Ordering Strategy for a Deteriorating Inventory in Declining Market

    Article • International Journal of Mathematics and Mathematical Sciences, January 2009, Hindawi Publishing Corporation

    Nita Shah

  121. Optimisation of pricing and ordering under the two-stage credit policy for deteriorating items when the end demand is price and credit period sensitive

    Article • International Journal of Business Performance and Supply Chain Modelling, January 2009, Inderscience Publishers

    Nita Shah

  122. Optimal ordering policy for stock-dependent demand under progressive payment scheme

    Article • European Journal of Operational Research, January 2008, Elsevier

    Nita Shah

  123. Optimal unit price and credit period for price sensitive demand and random supply

    Article • International Journal of Applied Decision Sciences, January 2008, Inderscience Publishers

    Nita Shah

  124. AN EOQ MODEL FOR PROGRESSIVE PAYMENT SCHEME UNDER DCF APPROACH

    Article • Asia-Pacific Journal of Operational Research, December 2006, World Scientific Pub Co Pte Lt

    Nita Shah

  125. EOQ MODEL FOR TIME-DEPENDENT DETERIORATION RATE WITH A TEMPORARY PRICE DISCOUNT

    Article • Asia-Pacific Journal of Operational Research, December 2005, World Scientific Pub Co Pte Lt

    Nita Shah

  126. PROBABILISTIC ORDER LEVEL SYSTEM WHEN ITEMS IN INVENTORY DETERIORATE AND DELAY IN PAYMENTS IS PERMISSIBLE

    Article • Asia-Pacific Journal of Operational Research, September 2004, World Scientific Pub Co Pte Lt

    Nita Shah

  127. Retailer's pricing, credit and inventory policies for deteriorating items in response to temporary price/credit incentives

    Article • International Journal of Production Economics, January 2003, Elsevier

    Nita Shah

  128. Retailer's response to special sales: price discount vs. trade credit

    Article • Omega, October 2001, Elsevier

    Nita Shah

  129. Diversification in economic order quantities (EOQ) model

    Article • Kybernetes, April 1999, Emerald

    Nita Shah

  130. A modification to : Optimal ordering policies when anticipating a disruption in supply or demand

    Article • Journal of Statistics and Management Systems, March 1999, Taru Publications

    Nita Shah

  131. A discrete-time probabilistic inventory model for deteriorating items under a known price increase

    Article • International Journal of Systems Science, August 1998, Taylor & Francis

    Nita Shah

  132. A discrete-in-time probabilistic inventory model for deteriorating items under conditions of permissible delay in payments

    Article • International Journal of Systems Science, February 1998, Taylor & Francis

    Nita Shah

  133. Probabilistic order level system with lead time when delay in payments are permissible

    Article • Top, December 1997, Springer Science + Business Media

    Nita Shah

  134. Probabilistic Time Scheduling Model for Exponentially Decaying Inventory under Temporary Price Discount

    Article • Journal of Information and Optimization Sciences, May 1993, Taru Publications

    Nita Shah