Výsledky vyhledávání

Integer Linear Program Model for Efficient Bus Scheduling Problem in Transport Management for Akwa Ibom Transport Company

Autor: Etieneobong U. Bernard, Nse S. Udoh

Publikováno v: Asian Journal of Probability and Statistics. :9-23

Integer program was formulated in this work for efficient bus scheduling problem in Transport Company to obtain an optimal bus allocation system for its travelling routes in Nigeria. Integer programs were formulated for both the long and short routes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c76f4faddfd2cb74757ab0fbd715c64f
https://doi.org/10.9734/ajpas/2022/v20i3423

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Constrained Stochastic Inventory Control Models for Multi-Item with Variable Demand

Autor: Matthew J. Iseh, Raphael F. Ukpongessien, Nse. S. Udoh

Publikováno v: Asian Journal of Probability and Statistics. :1-15

Constrained multi-item inventory system with variable demands are considered. The demand rates of five selected multi-item - Cowbell, Milo, SMA, Cerelac and Golden Morn were modeled as Weibull, Normal and Lognormal probability distributions respectiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e261dc9cd858cf8d7bf990d500b1b98
https://doi.org/10.9734/ajpas/2022/v20i2415

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Multivariate process control chart based on sign and signed-rank tests for mixture distributions

Autor: Everetus O. Ossai, Offorma S. Ugwu, Nse S. Udoh, Akaninyene Udo Udom

Publikováno v: Journal of Statistics and Management Systems. 24:1669-1688

The development and application of the traditional multivariate parametric control charts have been distribution-based procedures. This is because the process output is assumed to come from some sp...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2fa88a845080fa44e2980e42c7977b90
https://doi.org/10.1080/09720510.2020.1826685

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Choosing Appropriate Regression Model in the Presence of Multicolinearity

Autor: Maruf A. Raheem, Aramide Titilayo Gbolahan, Nse S. Udoh

Publikováno v: Open Journal of Statistics. :159-168

This work is geared towards detecting and solving the problem of multicolinearity in regression analysis. As such, Variance Inflation Factor (VIF) and the Condition Index (CI) were used as measures of such detection. Ridge Regression (RR) and the Pri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e425f31b9990e80f88c3c07575af43be
https://doi.org/10.4236/ojs.2019.92012

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Optimal Maintenance Probabilities and Preventive Replacement Maintenance Policy for Photocopy Machines

Autor: Fredrick Ohaegbunem, Nse S. Udoh, Akaninyene Udo Udom

Publikováno v: Journal of Reliability and Statistical Studies.

The need for suitable replacement policies are essential to minimize down time, maintenance cost and maximize the availability and reliability of equipment. On this premise, this work models the failure rate of Photocopy machines and obtain its optim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e5289704e10b2fbda5245a539bef2354
https://doi.org/10.13052/jrss0974-8024.14113

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Minimal cost service rate in priority queuing models for emergency cases in hospitals

Autor: Idorenyin Etukudo, Nse S. Udoh

Publikováno v: International Journal of Advanced Statistics and Probability. 6:50-54

Performance measures and waiting time cost for higher priority patients with severe cases over lower priority patients with stable cases using preemptive priority queuing model were obtained. Also, a total expected waiting time cost per unit time for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c28d0b5d234bb1cca7d1f012552e1782
https://doi.org/10.14419/ijasp.v6i2.12332

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Complementary optimal age maintenance (COAM) policy for repairable systems

Autor: Effanga Okon Effanga, Nse S. Udoh, C. E. Onwukwe

Publikováno v: International Journal of Reliability and Safety. 14:1

A Complementary Optimal Age Maintenance (COAM) policy is proposed in this work for repairable systems which require high level of availability and safety standard by exploiting the comparative advantage of minimum expected cost-based optimal age repl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::772690d4331830e00e23f90067c835b1
https://doi.org/10.1504/ijrs.2020.10027560

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ANALYSIS OF MULTI-SERVER SINGLE QUEUE

Autor: Emmanuel John Ekpenyong, Nse S. Udoh

Publikováno v: Pakistan Journal of Statistics and Operation Research, Vol 7, Iss 2, Pp 183-198 (2011)
Pakistan Journal of Statistics and Operation Research; Vol 7. No. 2, July 2011; 183-198

Queuing properties such as expected total service time and its variance and some performance measures like the expected number of phases in the system, expected number of phases in the queue, expected number of customers in the queue, expected waitin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9b97aabd0f41fd95e9d7947300bf666
http://www.pjsor.com/index.php/pjsor/article/view/132

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An application of optimal transportation algorithm (OTA) to the distribution of petroleum products in Nigeria

Autor: Nse S. Udoh, Polycarp E. Chigbu

Publikováno v: Global Journal of Mathematical Sciences; Vol 5, No 2 (2006); 167-174

No Abstract.Global Journal Mathematical Sciences Vol. 5 (2) 2006: pp. 167-174

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::595b1803a41495c83e87bd07b5540fdb
https://doi.org/10.4314/gjmas.v5i2.21396

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