Dr. Ravi Shankar Kumar (Faculty)

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Dr. Ravi Shankar Kumar

Assistant Professor,
Science & Humanities

7630846311   |   [email protected]

Website | Blog



Qualifications
Ph.D (IIT Kharagpur), CSIR-NET, GATE, NBHM Post Doctoral Fellow
Subject Expertise
Mathematics (Operations Research)
Area Of Research
Inventory Management, Supply Chain Management, Vehicle Routing Problem, Multi-objective Optimization, Fuzzy Optimization.
Professional Experience
Assistant Professor at Government Engineering College, Aurangabad, Bihar since 19/12/2023
Lecturer at Government Polytechnic Saharsa, Bihar for the period 12/09/2018 to 18/12/2023.
Assistant Professor (Contractual) at National Institute of Technology, Agartala for the period 17/07/2015 to 07/09/2018.
NBHM Post Doctoral Fellow at IIT Kharagpur for the period 01/10/2013 to 16/07/2015.
Involved in Tutorial classes of Mathematics-I and Mathematics-II (for B. Tech and Int. M.Sc.) at IIT Kharagpur during the period Jan, 2009 to Dec, 2011.
List Of Publications
Ravi Shankar Kumar, Alok Choudhury, Soudagar A.K. Irfan Babu, S.K. Kumar, A. Goswami and M.K. Tiwari: Designing multi-period supply chain network considering risks and emission: A multi-objective approach, Annals of Operations Research (Springer), Vol. 250(2), 427-461, 2017. SCI, Impact Factor: 2.583.
Ravi Shankar Kumar, M.K. Tiwari, and A. Goswami: Two-echelon fuzzy stochastic supply chain for the manufacturer-buyer integrated production-inventory system, Journal of Intelligent Manufacturing (Springer), Vol. 27, No. 4, 875-888, 2016. SCI, Impact Factor: 4.311
Ravi Shankar Kumar and A. Goswami: A fuzzy random EPQ model for imperfect quality items with possibility and necessity constraints, Applied Soft Computing (Elsevier), Vol. 34, 838-850, 2015. SCI, Impact Factor: 5.472.
Ravi Shankar Kumar and A. Goswami: A continuous review production-inventory system in fuzzy random environment: Minmax distribution free procedure, Computers & Industrial Engineering (Elsevier), Vol. 79, 65-75, 2015. SCI, Impact Factor: 4.135
Ravi Shankar Kumar and A. Goswami: EPQ model with learning consideration, imperfect production and partial backlogging in fuzzy random environment, International Journal of Systems Science (Taylor & Francis), Vol. 46(8), 1486-1497, 2015. SCI, Impact Factor: 2.149.
Ravi Shankar Kumar, Karthik Kondapaneni, Vijaya Dixit, A. Goswami, L.S. Thakur and M.K. Tiwari: Multi-objective modeling of production and pollution routing problem with time window: A self-learning particle swarm optimization approach, Computers & Industrial Engineering (Elsevier), Vol. 99, 29-40, 2016. SCI, Impact Factor: 4.135
Dipana Jyoti Mohanty, Ravi Shankar Kumar and A. Goswami: An improved inventory model with random review period and temporary price discount for deteriorating items, International Journal of System Assurance Engineering and Management (Springer), Vol. 7(1), 62-72, 2016.
Ravi Shankar Kumar and A. Goswami: Fuzzy stochastic EOQ inventory model for items with imperfect quality and shortages are backlogged, Advanced Modeling and Optimization, Vol. 15, No. 2 (2013) 261-279
Ravi Shankar Kumar, S.K. De and A. Goswami: Fuzzy EOQ models with ramp type demand rate, partial backlogging and time dependent deterioration rate, International Journal of Mathematics in Operational Research, Vol. 4(5), 473-502, 2012.
Dipana Jyoti Mohanty, Ravi Shankar Kumar and A. Goswami: A two-warehouse inventory model for non-instantaneous deteriorating items over stochastic planning horizon, Journal of Industrial and Production Engineering (Taylor & Francis), Vol. 33(8), 516-532, 2016.
Dipana Jyoti Mohanty, Ravi Shankar Kumar and A. Goswami: Trade-credit modeling for deteriorating item inventory system with preservation technology under random planning horizon, ‘Sadhana’ (Springer), 43(45), 1-17, 2018. SCI, Impact Factor: 0.849
Dipana Jyoti Mohanty, Ravi Shankar Kumar and A. Goswami: Vendor-buyer integrated production-inventory system for imperfect quality item under trade credit finance and variable set-up cost, Rairo-Operations Research, 52, 1277-1293, 2018. SCI, Impact Factor: 1.025.
Ravi Shankar Kumar: Modeling a type-2 fuzzy inventory system considering items with imperfect quality and shortage backlogging, ‘Sadhana’ (Springer), 43(163), 1-10, 2018. SCI, Impact Factor: 0.849
Chayanika Rout, Ravi Shankar Kumar, D. Chakraborty and A. Goswami: An EPQ model for deteriorating items with imperfect production, inspection errors, rework and shortages: a type-2 fuzzy approach, ‘OPSEARCH’ (Springer), 56(3), 657-688, 2019.
Chayanika Rout, Arjun Paul, Ravi Shankar Kumar, D. Chakraborty and A. Goswami: Cooperative sustainable supply chain for deteriorating item and imperfect production under different carbon emission regulations, ‘Journal of Cleaner Production’ (Elsevier), 2020. SCI, Impact Factor: 9.297
Arjun Paul, Ravi Shankar Kumar, Chayanika Rout and A. Goswami: A bi-objective two-echelon pollution routing problem with simultaneous pickup and delivery under multiple time windows constraint, ‘OPSEARCH’ (Springer), DOI: 10.1007/s12597-020-00481-6 , 2021.
Chayanika Rout, Arjun Paul, Ravi Shankar Kumar, D. Chakraborty and A. Goswami: Integrated optimization of inventory, replenishment and vehicle routing for a sustainable supply chain under carbon emission regulations, ‘Journal of Cleaner Production’ (Elsevier), 316, 128256, 2021. SCI, Impact Factor: 9.297
Arjun Paul, Ravi Shankar Kumar, Chayanika Rout and A. Goswami: Designing a multi-depot multi-period vehicle routing problem with time window: Hybridisation of tabu search and variable neighbourhood search algorithm, ‘Sadhana’ (Springer), Accepted for publication, 2021. SCI, Impact Factor: 1.188.
Chayanika Rout, Ravi Shankar Kumar, Arjun Paul, D. Chakraborty and A. Goswami: Designing a single-vendor and multiple-buyers' integrated production inventory model for interval type-2 fuzzy demand and fuzzy rule based deterioration, ‘Rairo-Operations Research’, 55, 3715-3742, 2021. SCI, Impact Factor: 1.393
Mandeep Kumar, Ravi Shankar Kumar, Apu Kumar Saha: Continuous review inventory system for intuitionistic fuzzy random demand under service level constraint, ‘Sadhana’ (Springer), 47(2), 103, 2022. SCI, Impact Factor: 1.188.
Ravi Shankar Kumar, Chayanika Rout, Arjun Paul: A type-2 fuzzy based hybrid AHP-TODIM MCDM approach for green supplier selection, AIP Conference Proceedings, 2852(1), 2023. SCOPUS
Conference Attended (National/International)
International Conference on Recent Trends in Mathematical Sciences - 2018, Department of Mathematics, Tripura University. A paper entitled 'An EOQ model with service level constraint in intuitionistic fuzzy random environment' is presented.
A paper entitled “An EOQ model with defective items and shortage backlogging: Fuzzy set theoretic approach” is presented at National Seminar on “Challenges in Mathematical Sciences”, February 8-9, 2014, Centre for Applied Mathematics, Central University of Jharkhand, Ranchi.
International Workshop on Fuzzy Sets, Rough Sets, Uncertainty Analysis and Applications, November 21-25, 2011, Dept. of Math, NIT Durgapur.
Poster presentation on the topic “Optimal Production Runtime Inventory Model in Fuzzy Random Environment”, December 22-23, 2011, Dept. of Math, IIT Kharagpur.
National Meet of Research Scholars in Mathematical Sciences (NMRSMS), October 12-15, 2011, IIT Kharagpur
Poster presentation on the topic “EOQ models with ramp type demand rate, partial backlogging, deterioration and fuzzy cost coefficients”, November 20, 2010, Dept. of Math, IIT Kharagpur
A paper entitled “A continuous review inventory model for fuzzy random demand and service level constraint” is presented in 27th International Conference of International Academy of Physical Sciences on “Recent Advances in Statistics and Operations Research”, Oct 26-28, 2021, at Department of Mathematics, NIT Sikkim, India.
A paper entitled “A hybrid interval type-2 fuzzy AHP-TODIM MCDM approach for green supplier selection problem” is presented in International Conference on “Mathematical Techniques and Application”, March 23-25, 2022, at SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, India.
Membership
Life Member of Tripura Mathematical Society
Student Member of Production and Operations Management Society (POMS) for the years 2014, 2015 and 2016.
Awards and Honors
Awarded as outstanding reviewer for the years 2015 and 2017 by the journal ‘Computers & Industrial Engineering (Elsevier)’.
Awarded as outstanding reviewer for the year 2016, by the journal ‘Applied Soft Computing (Elsevier)’.
Selected for NBHM Post-Doctoral Fellowship 2013, Department of Atomic Energy, Government of India
CSIR-NET for Lectureship
Ranked 128 in the all India merit list of GATE (Mathematics Discipline).
Institute fellowship by Indian Institute of Technology Kharagpur (funded by MHRD, Government of India) for pursuing Ph.D.
Listed in the panel of reviewer of the international journal:
1. Annals of Operations Research (Springer)
2. IEEE Transactions on Systems, Man and Cybernetics: Systems (Part A)
3. International Journal of Production Economics (Elsevier)
4. Computers & Industrial Engineering (Elsevier)
5. Journal of Cleaner Production (Elsevier)
6. International Journal of Production Research (Taylor & Francis)
7. European Journal of Industrial Engineering
8. International Journal of Systems Science (Taylor & Francis)
9. RAIRO - Operations Research
10. Iranian Journal of Fuzzy System
11. DYNA Journal (Published by ‘Universidad Nacional de Colombia’)
12. Journal of Intelligent Manufacturing (Springer)
13. International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems (World Scientific)
14. Applied Soft Computing (Elsevier)
15. Sadhana - Indian Academy of Science (Springer)
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