Dr. Dhrub Kumar Singh
ASSISANT PROFESSOR

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Journals

  1. Pricing and Ordering Policies for a Deterministic Inventory Model for Deteriorating Items when the Demand is Stock-dependent and the Supplier Offers Trade Credit with Delay in Payments
    January, 2017, Ranchi University Journal of Science and Technology (RUJOSAT) – Peer Reviewed Journal, Vol. 4, No. 2, pp. 87–92, ISSN: 2319-4227.
  2. An Inventory Model for Non-instantaneous and Controlled Deterioration Rate with Stock and Time Dependent Consumption Rate
    July, 2018, Journal of Computer and Mathematical Sciences – An International Research Journal, Vol. 9, No. 7, pp. 715–721, UGC Listed Journal, ISSN: 0976-5727 (Print), ISSN: 2319-8133 (Online).
  3. An Inventory Model for Decaying Items under Certain Type of Trade-Credits Criterion Following Quadratic Demand and Weibull Distribution Deterioration Rate
    August, 2018, Journal of Computer and Mathematical Sciences – An International Research Journal, Vol. 9, pp. 1072–1079, UGC Listed Journal, ISSN: 0976-5727 (Print), ISSN: 2319-8133 (Online).
  4. A Deterministic Inventory Model for Deteriorating Products with Shortages and Price-dependent Demand Rate
    July, 2023, International Journal of Students’ Research in Technology & Management – Peer Reviewed Journal, e-ISSN: 2321-2543.
  5. An Inventory Model for Degrading Goods that Takes Inflation into Account and has Demand and Shortages that are Time and Price-dependent
    July, 2023, Indian Journal of Social Concerns – An International Peer-Reviewed and Refereed Journal, Vol. 12, Issue 54, July–August 2023, Ghaziabad, ISSN: 2231-5837.
  6. For Deteriorating Items in Supply Chain System with Price-dependent Demand and No Backorders, A Fuzzy Inventory Model
    July, 2023, Indian Journal of Social Concerns – An International Peer-Reviewed and Refereed Journal, Vol. 12, Issue 54, July–August 2023, Ghaziabad, ISSN: 2231-5837.
  7. A Deterministic Model of Deteriorating Inventory Items with Time Sensitive Demand Rate and Holding Cost under Controllable Rate of Deterioration
    July, 2023, Indian Journal of Social Concerns – An International Peer-Reviewed and Refereed Journal, Vol. 12, Issue 54, July–August 2023, Ghaziabad, ISSN: 2231-5837.
  8. Mathematical Model for Deteriorating Inventory Items under Trade Credits and Inventory Level Dependent Demand Rate
    November, 2015, E-Publication of International Science Congress Association (ISCA) – Refereed Journal, ISBN: 978-93-84659-04-2.
  9. Mathematical Modelling for Future Prospects in Understanding Transmissible Diseases: A Special Focus on Ranchi City
    January–June, 2022, Journal of Analysis and Computation (JAC) – An International Peer-Reviewed Journal, Volume X, Issue I, ISSN: 0973-2861.
  10. Machine Learning and Mathematical Models: A Collaborative Approach to Forecasting Future Transmissible Disease Dynamics
    July–December, 2022, Journal of Analysis and Computation (JAC) – An International Peer-Reviewed Journal, Volume X, Issue II, ISSN: 0973-2861.
  11. Generalized Aggregation Operators based on t-norm Operators for Complex Intuitionistic Fuzzy Sets
    November–December, 2024, International Journal of Statistics and Applied Mathematics, Volume 10, Issue 1, 2025, pp. 162–169, ISSN: 2456-1452.
  12. A Reliable Correlation Coefficient for Complicated Intuitionistic Fuzzy Sets and its Applications in Decision-Making
    January, 2024, Journal of Advances and Scholarly Researches in Allied Education, Vol. 21, Issue 1, January 2024, ISSN: 2230-7540.
  13. Application of Hypergeometric Function Involved Two or More Variables
    November–December, 2024, International Journal of Statistics and Applied Mathematics, Volume 10, Issue 1, 2025, pp. 182–194, ISSN: 2456-1452.
  14. Mittag-Leffler Functions and Applications
    January, 2024, Journal of Advances and Scholarly Researches in Allied Education, Vol. 21, Issue 1, January 2024, ISSN: 2230-7540.
  15. Deterministic Inventory Model with Price-dependent Demand and Allowable Delays in Payments in the Context of Learning Effects for Object Degradation
    March, 2026, International Journal of Engineering Research & Technology (IJERT), Volume 15, Issue 03, March 2026, ISSN: 2278-0181.
  16. Mathematical Modeling of Storage and Inventory Control Policies for Cost Minimization in Deteriorating Item Warehouse System
    March, 2026, International Journal of Engineering Research & Technology (IJERT), Volume 15, Issue 03, March 2026, ISSN: 2278-0181.

Book Chapters

  1. An Economic Lot-Size Inventory Model for Deteriorating Items with Time-Sensitive Consumption and Reduced Deterioration Rate
    Chapter in Edited Book, © Springer Nature Singapore Pte. Ltd., 2019.
  2. Discrete Mathematics (Book under Publication)
    B.R. International Publisher, New Delhi, Under Publication.

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