Dr. (Prof). Vijay Vir Singh

Publications: Year 2023.

[1] Umesh Chand, Jyoti Paliwal, V. V. Singh, Ameer Hassan Abdullahi, Rabiu Hamisu Kankarofi, S.K. Sahani, Stochastic analysis of repairable system comprised two subsystems with k-out-of-n: G, operational policy and copula repair approach, Accepted for publication, Jordan Journal of Mathematics & Statistics. Feb 2024.

[2] Priyavada, V. V. Singh, Modified Particle Swarm Optimization incorporated an Integrated approach for solution of Quadratic Programming Problems using Penalty Method, accepted for publication Dec. 2023and will publish in JNANABHA, Vol.54(1) (June 2024).

[3] Sujal Mishra, Suresh Kumar Sahani, Kameshwar Sahani, Binod Kumar Sah, Vijay Vir Singh, ENROLLMENT OF VECTOR IN CARDIOLOGYANDSTUDYOF CARDIAC CADENCE,

Asian Journal of Science, Technology, Engineering, and Art, Vol. 2(1), pp.1-14,2023.

[4] Priyavada, V. V. Singh, A Fuzzy Logic-Based Approach to Nonlinear Optimisation Problems
Involving Linear Approximation Relationships. Tuijin Jishu/Journal of Propulsion Technology,
ISSN: 1001-4055 Vol. 44 No. 5 (2023).
[5] S.K. Sahani, C. Yadav, K. Sahani, V.V. Singh, Constructing a Precise Method to Control Non-
Linear Systems Employing Special Functions and Machine Learning, Communications on Applied
Nonlinear Analysis, Vol. 30, No. 2, pp. 1-14, (2023).
[6] V. V. Singh, Ibrahim Yusuf, Abdullahi Sanusi, Hamisu Ayagi, Reliability Assessment of
Condenser Water Pump System Concept of Multi-Failure and Multi-Repair Approach, Accepted
for publication in a Chapter on Edited Book on Modelling and Computational Intelligence for
Quality and Reliability Assurance, Elsevier publisher 2023.
[7]. Ameer Hassan Abdullahi,Umesh Chand, S. K. Sahani, V. V. Singh, Stochastic analysis of
complex system reparable system via k-out-of-n: G configuration and copula repair approach,
Journal of Korean Mathematical Educational Society 2023.
[8]. Ameer Hassan Abdullahi, V. V. Singh, Stochastic analysis of system performance of two
serially arranged subsystems with k-out-of-n: G operational policy and multi repair approach,
Submitted to RAIRO, Operation Research 2023.
[9]. P. K. Poonia, V. V. Singh, Stochastic analysis of delayed reporting of faults in a computer
network using copula distribution, Int. J. of Quality Engineering and Technology, Inderscience,
Vol. 9, No. 2, pp. 161-182, 2023.
[10] Dhruv Raghav, Shakeeludeen, S. K Sahani, V. V. Singh, Performance Assessment of
complex repairable system with k-out-of-n: G operational scheme and copula repair approach,
Journal of Industrial Engineering International. Vol. 18. No. 3, pp. 35-49,
10.30495/JIEI.2023.1953669.1210.
[11] Hamisu Ismial Ayagi, V.V. Singh, Wan Zhong, Performance Assessment of k operational
state system with k-out-of-n: G working scheme with implementing copula, International
Journal of Reliability Quality and Safety Engineering, Vol. 30, No. 2 (2023).
[12] Hamza Maigari Ahmadu, Ibrahim Abdullahi, V. V. Singh, Traditional Index Investing and
Low Volatility Investing Strategies: Evidence from Nigeria Stock Market, Biostatistics and
Biometrics Open Acc. J. UK. 2023.
Publications: Year 2022.
[13] V. V. Singh, Abdul Kareem Lado, Sudhansu. S. Maiti, Performance assessment of complex
system under the k-out-of- n: G type configuration with k consecutive degraded states through
copula repair approach. International Journal of Quality Reliability and Safety Engineering, Vol
29(2), pp. 1-29, 2022. DOI: 10.1142/S0218539321500479.

[14] V. V. Singh, D. K. Rawal, S. K Sahani, Abbas Bin Jibril, Reliability Assessment of Multi-
Computer System Consisting n clients and the k-out-of- n: G operation scheme with Copula
Repair Policy, Life Cycle Reliability and safety Engineering, Vol. 11 (2), pp. 163-175. 2022,
Springer Publisher.
[15] Umesh Chand, Rovin Kumar, D. K. Rawal, V. V. Singh, Stochastic analysis of complex
repairable system comprises two subsystems in series configuration via multi repair strategy,
Communicate to Life Cycle Reliability and Safety Engineering, Springer Journal 11, pp. 323-335,
2022.
[16]. Monika Gahlot, Indukala Tripathi, V. V. Singh, Performance Assessment of complex
repairable system comprising two subsystems in series configuration using copula repair
strategy, International Journal of Mathematics Trend and Technology, Vol. 61(6), pp. 133- 152,
2022.
[17]. V. V. Singh, Ameer Hassan Abdullahi, P. K. Poonia, Stochastic analysis of complex system
comprises two systems in series via k-out-of-n: G configuration and copula repair tactic, Journal
of Reliability and Statistical Studies, Under review, 2022.
[18] V. V. Singh, P. K. Poonia, Anu Sirohi, Cost analysis of two repairable k-out-of-n systems in
series with controllers employing copula distribution. Journal of Optimizations in industrial
engineering. Vol. 15(1), pp. 121-130, 2022. Scopus indexed, ISSN: 24233935.Impact score:
0.76
Publications: Year 2021.
[19] Chiwa, Musa Dalah, N P Singh and V. V. Singh, Assessment of HIV Stigma and
Discrimination in North Eastern, Nigeria, [Through control charts], Journal of Pure and Applied
Mathematics. Vol. 5(2), pp. 1-6, 2021. ISSN:2752-8081.
[20] Indrani Mukherjee, Sudhansu S. Maiti, and Vijay Vir Singh, Study on estimators of the PDF
and CDF of the one parameter polynomial exponential distribution, Communications in
Statistics, Vol. 52, No. 1, pp.104–120. 2023, ISSN:1532-415X, 03610926. Impact factor: 0.86.
doi:10.1080/03610926.2021.1910302
[21] V. V. Singh, P. K. Poonia, Umar Jubrin Labran, Ibrahim Abdullahi, Probabilistic
analysis of a multi-state warm standby k-out-of-n: G; system in a series configuration using
copula Linguists. Reliability Theory & Applications, Vol. 16(2), pp.22-39, 2021.ISSN: 2326- 9006
[22].Abbas Jibril, V. Singh, D. K Rawal, Probabilistic Assessment of Complex system consisting
three subsystems multi failure threats and copula repair approach, International Journal of
Quality Reliability and Management, Emerald. Vol. 40 No. 1, pp. 83-102, 2021.
[23]. V. V. Singh, P. K. Poonia, D. K. Rawal, Reliability analysis of repairable network system of
three computer labs connected with a server under 2- out- of- 3: G configuration”, Published,
May 2020, Life Cycle Reliability and Safety Engineering. Vol. 10 (1), pp. 19-29, 2021. (DOI:
10.1007/s41872-020-00129-w) Springer Journal. Journal. ISSN: 2520-1360.
[24] V. V. Singh, Monika Gahlot, Reliability Analysis of (N) Clients System Under Star
Topology and Copula Linguistic Approach. International Journal of Computational Systems
Engineering, Inderscience Journal, Vol. 6(3), pp 123-133, 2021.ISSN 2046-3405.
[25] Dhruv Raghav, D. K. Rawal, Ibrahim Yusuf, Rabiu Hamisu Konkoffi, V. V. Singh,
Reliability Prediction of Distributed System with Homogeneity in Software and Server Subject

to Different Repair Policies Using Joint Probability Distribution via Copula Approach.
Reliability: & Applications, Vol.16 (1), pp. 217-230, 2021. Scopus Indexed Journal. ISSN 1932-
2321
[26] V. V. Singh, Abubakar Idris Mohammad, Kabiru Hamisu Ibrahim, Ibrahim Yusuf,
Performance assessment of complex repairable system with n-identical units under (k-out-of- n:
G) scheme and copula linguistic repair approach. International Journal of Quality
Reliability and Management. Vol. 39(2), pp. 367-386. 2021. Emerald. Impact factor: 2.77.
ISSN:0265671X.
[27] Dhruv Raghav, P. K. Poonia, V. V. Singh, Probabilistic analysis of complex repairable
system involving two subsystems in a series arrangement with (k- out- of- n): G operation
Scheme and copula repair approach, Reliability Theory & Applications, Vol. 16(2),pp.21-39,
2021.ISSN 1932-2321
Publications: Year 2020.
[28] Musa Chiwa Dalah, V. V. Singh, Ibrahim Abdullahi, A study HIV/AIDS trend in Yobe
state for the prescribed period (1999 – 2019). International Journal of Statistics and applications.
Vol. 10, Issue 1, pp. 1-10,2020.
[29] A. A. Suleiman, V. V. Singh, Auwalu. Ibrahim, U.A. Abdullahi, S.A. Suleiman,
Determination of the Best Fitted Probability Distribution for Groundwater Data in Gwale Area,
North-Western Nigeria. Annals on Optimizations Theory and Applications, Vol. 3 issue 1, pp.
36-46. 2020, Online: ISSN:2588-5995.
[30] Pratap Kumar, Kabiru. Ibrahim, M. I. Abubakar, V. V. Singh, “Probabilistic assessment of
complex system with two subsystems in series arrangement with multi types failure and two
types of repairs using copula”. Strategic System Assurance and Business Analytics. Book
Chapter pp:11-26, 2020, Springer Publisher. ISBN-13. 978-9811536465
[31] Monika Gahlot, V. V. Singh, H. I. Ayagi, Ibrahim Abdullahi, “Stochastic Analysis of a
two units’ complex repairable system with Switch and Human failure using Copula Approach”,
Life Cycle Reliability and Safety Engineering. Vol. 9(1), pp. 1-11, 2020.
[32] ISSN: 2520-1360.
[33] V. V. Singh, P. K. Poonia, and Ameer Hassan Abdullahi “Performance analysis of a
complex repairable system with two subsystems in series configuration with an imperfect
switch”. Journal of Mathematics & Computational Science. (JMCS). Vol. 10(2). pp. 359-383,
2020. Scopus Indexed Journal. ISSN: 2008-949X
[34] V. V. Singh, and D. K. Rawal, Pratap Kumar, Performance Assessment of Linux
Operating System Employing Copula Distribution Approach., Life Cycle Reliability and safety
Engineering” Vol.9(4), pp.389-403,2020. ISSN: 2520-1360
[35] V. V. Singh, Monika Gahlot, Stochastic analysis of repairable system with unfavorable
environment condition and imperfect switching device employing copula approach,
‘International Journal of Reliability risk and safety, Theory and applications. Vol.3(1), pp. 17-
26, 2020, ISSN. 2676-3346 .
[36] Ibrahim Yusuf, Abdul kareem Lado Ismail, V. V. Singh, U. A. Ali, Nasir Ahmad Sufi,
Performance Analysis of Multi‑computer System Consisting of Three Subsystems in Series
Configuration Using Copula Repair Policy, SN Computer Science (2020) Springer Journal, Vol.
1 (5) pp 1-11, 2020. ISSN 2661-8907
[37] Dhruv Raghav, P. K. Poonia, Monika Gahlot, V. V. Singh, Hamisu, I, Ayagi, Ameer. H.
Abdullahi, Probabilistic analysis of a system consisting of two subsystems in the series

configuration under copula repair approach. Journal of Korean Mathematical Educational
Society: Series B Pure and Applied Mathematics, Vol. 27(3), pp. 135- 155, 2020. ISSN 1226-
0657.
[38] V. V. Singh, Yusuf Ibrahim Gwanda, Replenishment Decision for Ameliorating
Inventory with Time Dependent Demand and Partial Backlogging Rate. International Journal of
Mathematics and Operation Research. Available in the list of accepted articles, 2020. DOI:
10.1504/IJOR.2020.10034078 Scopus Indexed Journal.
[39] V. V. Singh, Abdul Kareem Lado, Ibrahim, Yusuf, Ameer Hassan Abdullahi,
Probabilistic Assessment of Computer-Based Test (CBT) Network System Using Copula
Linguistic Approach. Journal of Reliability and Statistical Studies. Vol. 13 Issue 2, pp. 401- 428,
2020. River publisher Russia. ISSN 2229-5666
Publications: Year 2019.
[40] V. V. Singh, Abdul Kareem Lado, Cost Assessment of complex repairable system
consisting two subsystems in Series configuration using Gumbel Hougaard family copula,
International Journal of Quality Reliability and Management, Vol. 36(10), pp.1683-1698, 2019.
(Scopus Indexed Journal). Impact factor: 2.77. ISSN:0265671X.
[41] V. V. Singh, P. K. Poonia, Probabilistic assessment of two unit’s parallel system with
correlated lifetime under inspection using regenerative point technique, International Journal of
Reliability, Risk& Safety, Theory and applications. Vol. 2(1), pp 5-18, 2019. ISSN. 2676- 3346 .
[42] Babagana Modu, V. V. Singh, D. K. Rawal, “Performance modeling of a System operates
2-out-of 3: G.” 35th Annual UK Performance Engineering Workshop (UKPEW’2019), pp, 55-
70.
[43] V. V. Singh, M. I. Abubaker “Performance assessment of African textile manufacturers,
LTD, in Kano state, Nigeria, through Multi failure and repair using copula. Operation Research
and Decisions. Vol. 26, issue 4, pp. 1-18, 2019.ISSN. 2391-6060.
[44] Chiwa, Musa Dalah, V. V. Singh, M. I. Abubakar, Abdalla E. A. Mohamad, A statistical
survey on awareness and knowledge of sexually transmitted infections [STIS] in North- Eastern
Nigeria. Journal of Statistical and Econometric Methods. Vol 8. Issue 2, pp. 27-36. 2019.
[45] Umar Yusuf Madaki, V. V. Singh, Musa Dalah Chiwa, Assessment of Diabetic Patients
among Adults in Maiduguri, using Multivariate Discriminant Model. Biostatistics and
Biometrics Open Acc. J. UK, Vol. 9 Issue 1, pp, 1-8. UK. 2019. . ISSN: 2573-2633.
[46] Yusuf Gwanda, V. V. Singh and Adamu Nuhu Beri, Optimal Production Model for
Inventory Items with Verhulst’s Demand and Time-Dependent Amelioration Rate. Palestine
Journal of Mathematics Vol 8(2), pp.418-424,.2019. ISSN: 2219-5688.
Publications: Year 2018.
[47] V. V. Singh, Hamishu. H. Ayagi, “Stochastic analysis of a complex system under
preemptive resume repair policy using Gumbel- Hougaard family copula,” International Journal
of Mathematics and Operation Research (IJMOR). Vol 12 Issue 2, pp 273-291,
2018.ISSN:1757-5869. (Scopus Indexed Journal)
[48] Abdul Kareem Lado, V. V. Singh, Kabiru H. Ismail, Yusuf Ibrahim, “Performance and
cost assessment of repairable complex system with two subsystems connected in series
configuration” International Journal of Reliability and Applications. Vol. 19 No. 1. pp. 27-42,
2018. ISSN: 1598-0073.
[49] Monika Gahlot, V. V. Singh, H. Ismail Ayagi& C.K. Goel, “Performance assessment of

repairable system in series configuration under different types of failure and repair policies using
Copula Linguistics”, International Journal of Reliability and Safety. Vol.12 Issue 4 pp.348-374.
2018. (Scopus Indexed Journal). 1479-3903. ISSN (print): 0218-5393 | ISSN (online): 1793-
6446.Impcat score 0.56
[50] V. V. Singh and Jyoti Gulati, D. K. Rawal, “Performance Assessment of two unit’s
redundant system under different failure and repair policies using Copula.” International Journal
of Reliability and Applications, pp.114-129 Vol 19, Issue 2, 2018. ISSN. 1598-0073
[51] Badamasi Abba & V. V. Singh, New Odd Generalized Exponential-Exponential
Distribution: Its Properties and Application”, Biostatistics and Biometrics Open Acc. J. 6(3)
pp.1-6. 2018. ISSN: 2573-2633. Impact factor 1.270.
[52] Chiwa, Musa Dalah, V. V. Singh & Abdalla Eltom Abdalla Mohamad, “Statistical survey
on awareness of Hiv/Aids and its impact on economic development in northern Nigeria during
the period 2010 – 2015. Journal of Statistical and Econometric Methods. Vol.7 Issue 3. pp 35-62,
2018. ISSN: 2241-0376 (Online)
[53] Chiwa Musa Dalah, V, V, Singh, “A Study towards Awareness and Corrective Measures
of HIV/AIDS in North-Western Part of Nigeria through Statistical Assessment” Global Journal
of Reproductive Medicine, Vol. 5 Issue 3 pp 1- 8, 2018. ISSN2775-8594.
Doi:10.19080/GJORM.2018.555663
Publications Year 2017.
[54] V. V. Singh, Hamishu, H. I. Ayagi, “Study of Reliability measures of a system consisting
of two subsystems in the series configuration using copula.” ‘Palestine Journal of Mathematics,
Vol 6. Special Issue II pp 102-111, 2017. ISSN: 2219-5688. (Scopus Indexed Journal)
[55] V. V. Singh and Kabiru H. Ibrahim, Abdul Kareem Lado, Reliability assessment of
complex system consisting two subsystems connected in series configuration using Gumbel-
Hougaard family copula distribution. Journal of Applied Mathematics and Bioinformatics, vol. 7,
Issue 2, pp. 1-17, 2017. ISSN: 1792-6939.
[56] Chiwa Musa Dalah, V.V. Singh, Survey and Assessment Report of HIV/AIDS
Awareness of in North-Eastern Nigeria. International Journals of Advanced Research in
Computer Science and Software Engineering, ISSN: 2277-128X (Volume-7, Issue-11) pp 105-
112. 2017.
Publications Year 2016.
[57] Jyoti Gulati, V. V. Singh, Dilip Kumar Rawal & C. K. Goel, “Performance Analysis of
Complex system in the series configuration under different failure and repair discipline using
Gumbel-Hougaard family Copula”. ‘International Journal of Reliability, Quality, and Safety
Engineering’ Vol. 23. Issue 2, pp 1- 21, 2016. ISSN: 1793-6446. Impact score: 0.92
Publications Year 2015.
[58] V. V. Singh and N. P. Singh, “Performance Analysis of Three Unit Redundant System
with Switch and Human Failure,” Mathematics in Engineering, Science, and Aerospace (MESA),
vol. 6, No. 2, pp. 295- 308, 2015. CSP, Cambridge, UK; I&S – Florida, USA, Scopus Indexing.
ISSN: 2041-3165.
[59] V. V. Singh, Dilip Kumar & Mangey Ram, “Study of Reliability Measures of a Local
Area Network via Copula linguistics approach,” Internal J. of Quality Reliability and
Management, Emerald, vol.32, Issue 1, pp.97-111, 2015. Emerald Publisher, United Kingdom,
Indexing: SCOPUS. Impact factor: 2.77. ISSN:0265671X.

[60] V. V. Singh and D. K. Rawal, “Stochastic Analysis of n- Unit Plant with
Multidimensional Failure and Under Different Repair Policy Using Copula,” Journal of
Reliability and Statistics Studies, Vol. 6(2), pp 114- 133, 2015. ISSN: 2229-5666. Global,
impact factor: 0.853
[61] V. V. Singh, Yusuf Gwanda, Rajesh Prasad, “Reliability Analysis of Yobe State
University Computer Centre using LRU Algorithm. Reliability Analysis of Yobe State
University Computer Centre using LRU Algorithm, International Journal of Mathematical,
Computational Sciences, Vol. 9, No: 11, pp 701-707. 2015. ISSN: 1307-6892.
[62] V.V. Singh and Jyoti Gulati, “Reliability analysis of computer center at Yobe state
university, Nigeria under different repair policies,” Proceedings ICEECE 2015, Thailand
Bangkok 257- 263. 2015 ISSN 978-1-60595-257-4.
[63] V. V. Singh, Jyoti Gulati, ICEECE- 2015. International Conference on Energy
Environmental and Chemical Engineering held in Bangkok during 28-29 June 2015. Funded by
TET fund, Nigeria. Presented paper “Reliability analysis of computer center at Yobe state
university, Nigeria under different repair policies pp 257. 2015” ISSN 978-1-60595-257-4.
[64] V. V. Singh, Yusuf Umar Madaki, V. N. Maurya and Babagana Modu, “Application of
discriminate analysis on bronchopulmonary dysplasia among Infants: A case study of UMTH
and UDUS hospitals in Maiduguri, Nigeria, American Journal of Theoretical and Applied
Statistics (USA), Vol. 4, No.2, pp. 44-51, 2015. ISSN: 2326-9006.
[65] V. V. Singh, V. N. Maurya, B. Singh, S. Vashist, and G. Ogubazghi, “Effectiveness
performance analysis of soil minerals (Fe/Zn) on soil fertility and cropping patterns using X- Ray
Fluorescence Spectrometer (XRF) and ANOVA method,” American Journal of Biological and
Environmental Statistics, Science Publishing Group, USA, Vol. 1(1), pp.9-18, 2015. ISSN
Online: 2471-979X.
Publications Year 2014.
[66] V. V. Singh and Mangey Ram, “Multi-state k-out-of-n type system analysis,”
[67] Mathematics in Engineering, Science and Aerospace, vol. 5, No. 3, pp. 281-292,
2014. Scopus Indexed Journal. ISSN: 2041-3165. Impact score: 0.78
[68] V. V. Singh and D. K. Rawal, “Availability and Cost analysis of complex system under
Pre-emptive resume repair policy using copula distribution,” Pakistan J. of Statistics and
Operation Research, Vol. 10(3), pp. 299-312, 2014. ISSN: 2220-5810. Scopus Index Journal.
Impact score: 1.60
[69] V. V. Singh and Chiwa Musa Dalah, “Study of reliability measures of a two-unit standby
system under the concept of switch failure using copula distribution,” American Journal of
Computational and Applied Mathematics, vol. 4(4), pp. 118-129, 2014. ISSN: 2165-8943
[70] Dilip Kumar Rawal, M. Ram, V. V. Singh “Modelling and availability analysis of
internet data center with various maintenance policies,” International Journal of Engineering,
Transactions A: Basics, vol. 27, No. 4, pp. 599-608, 2014. [Materials and Energy Research
Centre, IRAN, Indexing: SCOPUS]. ISSN: 1025-2495. Impact factor: 1.16
[71] V.V. Singh and Jyoti Gulati, “Availability and cost analysis of a standby complex system
with different type of failure, under waiting repair discipline using Gumbel- Hougaard copula.”
ICICT, 2014, IEEE Proceedings, pp. 180-186. DOI: 10.1109/6781275.
[72] Jyoti Gulati, V. V. Singh, D. K. Rawal, and Babagana Modu, “Availability analysis
system with involvement of two subsystems using Copula distribution,” ICRITO Proceeding,
2014, Amity University Noida, India. Pp. 72-78, 2014.

[73] V. V. Singh, V. N. Morya and D. K. Arora, “Cost-effective perspective and scenario
development on economic optimization for multiple- use dry- season water resource
management,” American Open Journal of Agricultural Research, vol. 2, No. 1, pp. 1- 21, July
2014. ISSN: 2333 – 2131 (online).
[74] V. V. Singh, V. N. Maurya and Yusuf Umar Madaki, “Statistical analysis of the rate of
kidney (renal) failure, Application and Future Scope of Fundamental Mathematical and
Computational Sciences in Engineering & Technology,” American Journal of Applied
Mathematics and Statistics, vol. 2, No. 6A, pp. 6-12, 2014. The USA. ISSN 2328-7292.
Publications Year 2013.
[75] V. V. Singh, S. B. Singh, Mangey Ram & C. K. Goel, “Availability, MTTF and cost
analysis of a system having two units in a series configuration with the controller,” International
Journal of System Assurance and Management, vol. 4, issue 4, pp 341-352, 2013. [Springer
Publishers, Netherland, and India, Indexing: SCOPUS]. ISSN 0976- 4348.Impact factor 1.72
[76] V. V. Singh, Mangey Ram & S. B. Singh, “Stochastic analysis of a standby complex
system with waiting repair strategy,” IEEE Transactions on System, Man, and Cybernetics
System, vol. 43, No.3, pp. 698-707, 2013. IEEE Publishers, United States of America, Indexing:
SCOPUS, Impact Factor 10.65. ISSN:21682216.
[77] V. V. Singh, Dilip Kumar Rawal & Mangey Ram, “Cost analysis of an engineering
system involving subsystems in a series configuration,” “IEEE Transactions on Automation
Science and Engineering,” vol. 10, issue, 4, 2013. P.P, 1124-1130. IEEE Publishers, United
States of America, Indexing: SCOPUS, Impact Factor 10.6533. ISSN: 1545-5955.
Publications year (2011, 2010,2009)
[78] V. V. Singh and Dilip Kumar Rawal, “Availability analysis of a system having two units
in a series configuration with the controller and human failure under different repair policies,”
International J. of Scientific and Engineering Research, vol. 2 (10), pp. 1- 9, 2011.ISSN:2229-
5518.
[79] V. V. Singh, S. B. Singh, C. K. Goel, and Dilip Kumar, “Availability analysis of a system
having two units in a series configuration with the controller and human failure,” Proceedings
Recent Trends in Materials and Devices, pp. 92-98, 2011, ISBN 978-81-920913- 4-1.

[80] V.V. Singh, S.B. Singh, Mangey Ram & C. K. Goel, “Availability analysis of system
having three unit’s super priority, priority and ordinary under primitive resume repair policy,”
International Journal of Reliability and Applications, vol.11 No.1, pp. 41-53. 2010, Index-
Journal. Korean Reliability Society, Korea. ISSN: 1598-0073.
[81] V. V. Singh, Pratap Kumar, & A. K. Agrawal, “Reliability analysis of a standby complex
system with activation mode,” International J. of Math. Sci. & Engg. Appls. Vol.5, No. (V), pp.
345-357, 2011. ISSN 0973-9424. Global impact factor.0.455.
[82] V. V. Singh, S. B. Singh & C. K. Goel, “Reliability analysis of LINUX operating system
connected in a LAN, International J. of Math. Sci. & Engg. Appls. vol. 3, No III, pp. 211-222,
2009. ISSN 0973-9424.
[83] V. V. Singh, S. B. Singh & C. K. Goel, “Reliability modeling of internet data center,”
International J. of Math. Sci. & Engg. Appls. Vol.3, No. IV, pp. 231-244, 2009. ISSN 0973-
9424. Global impact factor.0.455.
[84] V. V. Singh, S. B. Singh & C. K. Goel, “Reliability analysis of computer lab connected to

the server,” International J. of Math. Sci. & Engg. Appls. vol.3, No. IV, pp. 17-33, 2009. ISSN
0973-9424. Global impact factor.0.455.

• Symposium held at C.C.S University Meerut with All India Symposium on Mathematics into the 21 Century under Allahabad Mathematical Society during March 26- 27, 2000.
• International Conference held at C.C.S University during Dec 29-31 -2005. (Presented paper on Reliability Modeling) title ‘Reliability analysis of a Linux Operation system connected in a LAN’
• National Seminar on Engg. & Mathematical Modeling held at Dronacharya College of Engineering & Technology, Greater Noida, June 2009.
• National Conference on Recent Drifts Breaks in applied science & its Technology for innovations Management held from 7^th to 9^th August 2009 at Krishna Institute of Engineering and Technology (Uttar Pradesh Technical University), Ghaziabad. Presented a paper title “Availability of a system consisting two subsystems…..repair policy”
• National Conference on Recent Trends in Materials and Devices, held at Amity University, Noida during 20-22 May 2010. (Presented paper on Reliability Modeling).
• National Conference on “Recent Trends in Materials and Devices” held at Amity University Noida during 19-21 May 2011. (Presented paper on Reliability Modeling).
• International Satellite Seminar on “Role of Mathematics in Science and Engineering,” organized by Department of Mathematics, Graphic Era University, Dehradun, Uttarakhand, India on May 13-14, 2011. A paper entitled “Reliability Analysis of a Linux Operating System Connected in a LAN to Two Different Topologies Employing Copula in Repair” was presented by Dr. V. V. Singh in co-authorship with Mangey Ram, S. B. Singh, and Dilip Kumar.
• International Conference on the topic entitled “Issues and Challenges in Intelligent Computing Techniques” organized jointly by the Uttrakhand State Council for Science & Technology (UCOST), Dehradun and Vijnana Bharati, Doon University, Dehradun, Uttarakhand, India on February 06-07, 2010, during 2^nd Rashtriya Yuva Vaigyanik Sammelan. A research paper entitled “Availability analysis of a standby complex systemwith human failure and waiting repair” by Mangey Ram, V. V. Singh and S. B. Singh was presented.
• ICICT- 2014 held at Krishna Institute of Engineering and Technology (Uttar Pradesh Technical University), Ghaziabad, India during 6-8 February 2014. Paper presented entitled “Availability and cost analysis of a standby complex system with different type of failure, under waiting repair discipline using Gumbel-Hougaard copula” by V. V. Singh and Jyoti Gulati.
• ICEECE- 2015. International Conference on Energy Environmental and Chemical Engineering held in Bangkok during 28-29 June 2015. Funded by TET fund, Nigeria. Presented paper “Reliability analysis of computer center at Yobe state university, Nigeria under different repair policies pp 257. 2015” ISSN 978-1-60595-257-4.
• Kalka Institute for Research & and Advance Studies, Annual Conference attended as Guest of Honor. 14 March 2014 India.
• ICFST- 2017. International Conference on “Frontier of Science & Technology-2017” held at Department of Applied science KIET Group of institutions, Ghaziabad, UP., and India during 6-7, Jan 2017. Session Chaired.
• 2^ND Annual International conference Northwest University Kano organized by faculty of science Northwest University, Kano, and Held on Sunday 6^th to Wednesday 9^th Nov Presented a research paper titled “Availability and cost analysis of the two unit’s redundant system under different failure and repair policy using copula.”
• 3^rd Annual International conference Northwest University Kano organized by faculty of science Yusuf Maitama Sule University, Kano, and Held on Monday 13^th to Wednesday 15^th Nov 2017. Chaired Session for a technical presentation.
• 9^th International conference on Quality Infocom, Technology & Business Operations (ICQRITO 2018) held on 27-29 Dec 2018 at conference center University of Delhi. Presented paper title “Probabilistic Assessment of a complex system in series configuration with different types of failure and two types of repairs using Copula distribution”.
• 9^th International conference on Quality Infocom, Technology & Business Operations (ICQRITO 2018) held on 27-29 Dec 2018 at conference center University of Delhi. Chaired a Session for a technical presentation.
• 4^th Annual International conference 2019 (YUMSCIC 2019) at YUMSCIC 2019, held from, Monday 8^th to Thursday 11^th July, 2019 at Yusuf Maitama Sule University, Kano, Nigeria. Presented paper title “Probabilistic assessment of a two units’ complex repairable system with switch and human failure using Copula Approach”.
• Online two days international conference on “Mathematical Science and Computational Intelligence” Dec 21-22, 2020 Sri Mata Vaishno Devi University, Katra (J& K) in association with Advance Research Educational Society. Keynote Speaker on topic: An exact Method for performance Evaluation of Complex Systems under k-out-of-n: G/F Operational Scheme through Copula Approach.
• 2nd International Conference on Advancements in Interdisciplinary Research (ICAIR- 2021) October 29 – 31, 2021, Organized by Department of Mathematics, Dr. Bhimrao Ambedkar University, Khandari Campus, Agra, India. In association with FIRMS India. Keynote Speaker on topic “An exact method for performance evaluation of complex systems under k- out-of-n: G/F operational scheme”.
• International Conference on Innovations and Application in Science and Technology (ICIAST 21- 23 Dec 2021), Department of Applied Science at Galgotia College of Engineering & Technology, Greater Noida, Uttar Pradesh, India. 201306, as a Keynote Speaker on topic “Some new developments in the study of complex repairable systems with n- active redundant units.”
• Keynote Speaker on topic “The demands of contemporary society and the advancement of science and technology” 8 ^th international conference at Invertis University Bareilly 15^th March 2024.