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Browsing 08. Quantitative Methods and Operations Management by Issue Date

Browsing 08. Quantitative Methods and Operations Management by Issue Date

Now showing items 1-20 of 30

Testing exponentiality against L-distributions

Choudhuri, Gopal (Journal of Statistical Planniny and Inference, 1997)

In this paper we propose a test statistic for testing exponentiality versus L-class of life distributions. This test is based on an estimate of a functional of the cdf which discriminates between the exponential and L-family.
Availability of a system with gamma life and exponential repair time under a perfect repair policy

Sarkar, Jyatirmoy*; Choudhuri, Gopal (Statistics and Probability Letters, 1999)

Employing Fourier transform technique we determine the availability of a maintained system under continuous monitoring and with perfect repair policy. We obtain closed-form expressions for the vailability when the system ...
Regression Analysis with t-distribution for the Error

Suresh, R.P. (2000)
Robust Procedures in Statistical Process Control

Suresh, R.P. (National Conference on Quality Reliability & Management, 2000)

Many Statistical Process Control (SPC) techniques such as Control charts, Acceptance Sampling plans and Process Capability, require that the quality characteristic of interest follow a normal distribution. However in many ...
A simple inequality of moments in some classes of bivariate ageing distributors

Suresh, R.P. (Journal of Indian Statistical Association, 2001)

We derive an inequality in terms of moments of Bivariate IFR distributions. We then show that this inequality holds good in a largere class of bivariate ageing distributions such as NBU,NBUE nad DMRL
A New Approach to System Reliability

Choudhuri; Hu, Kuolung; Afshar, Nader (IEEE TRANSACTIONS ON RELIABILITY, 2001-03)

Calculating system-reliability via the knowledge of structure function is not new. Such attempts have been made in the classical 1975 book by Barlow & Proschan. But they had to compromise with the increasing complexity of ...
Estimation of Change-Point When Hazard Rate Changes Sharply

Suresh, R.P. (Journal of Indian Statistical Association, 2002)

The hazard rate model arrises quite commonly in mechanical or biological systems, which experience a high hazard rate early in their lifetime due to infant mortality and then a constant or steady hazard rate after teh ...
Teaching Statistics in Management Courses in India

Suresh, R.P. (2002)

Statistics is taught as a core course in the Management programmes leading to the degree of Master of Business Administration (MBA) or an equalent degree in various Universities and Managmenet Institutes in India. As a ...
Mittag-Leffler Distribution

Jayakumar, K.*; Suresh, R.P. (2003)

The Mittag-Leffler distribution has been studied extensively in teh past decade. The Mittag-Leffler distribution has been found to be useful in a variety of applications. In this paper, we review the Mittag-Leffler ...
On the Inter-Relationship between some Classes of Life Distributions

Suresh, R.P. (Calcutta Statistical Association, 2003-12)

It is well known that if F is IFR, then it is also DMRI; however, the converse is not true, in general Kupka and Leo (1989) proved that a distribution with convex decreasing mean residual life (CDMRL) function has an ...
Estimation of location and scale parameters in a two-parameter exponential distribution from a censored sample

Suresh, R.P. (Statistical Methods, 2004)

In this paper, we consider estimating the location and scale parameters in the two-parameter Exponential Distribution using a Type II censored sample. We derive the Modified Maximum Likelihood Estimators using the approach ...
A Note on a Bernoulli Demand Inventory Model

Sinha, Pritibhushan (Decision, 2008-01)

In this paper we present a single-item, continuous monitoring inventory model with probabilistic demand forthe item and probabilistic lead time of order replenishment. It is assumed that demand follows Bernoullidistribution ...
Managerial research on the pharmaceutical supplychain – A critical review and some insights for future directions

Sushmita, A.Narayana; Pati, Rupesh Kumar; Vrat, Prem (Elsevier: Journal of Purchasing & SupplyManagement, 2013-10-05)

This paper presents a systematic review of research on management in the pharmaceutical supplychain PSC). Recent PSC literature, published in peer-reviewed academic journals, was collated for content analysis. Research ...
Managerial research on the pharmaceutical supplychain – A critical review and some insights for future directions

Sushmita, A.Narayana; Pati, Rupesh Kumar; Vrat, Prem (Elsevier: Journal of Purchasing & SupplyManagement, 2013-10-05)

This paper presents a systematic review of research on management in the pharmaceutical supplychain PSC). Recent PSC literature, published in peer-reviewed academic journals, was collated for content analysis. Research ...
Reverse Logistics: A Sustainable Option for Indian Pharmaceutical Industry

Sushmita, Aghalaya Narayana (Indian Institute of Management Kozhikode, 2014)

An increased pace of industrialization in developing countries has led to increasing levels of environmental pollution, while wide income disparities continue to exist in society. Researchers and practitioners in the field ...
Ordering properties of order statistics from heterogeneous exponentiated Weibull models

Chowdhury, Shovan; Amarjit Kundua (Elsevier, 2016)

In this paper we stochastically compare two parallel systems each having heterogeneous exponentiated Weibull components. These comparisons are made with respect to reversed hazard rate ordering and likelihood ratio ordering. ...
Role of Variability in Project Performance: A Few Theoretic Investigations

Milind, Shrikant Padalkar (Indian Institute of Management Kozhikode, 2016)

There is sufficient empirical evidence that project performance continues to be problematic despite over six decades of research and practice attention. Theories of project management remain weak while research adheres to ...
Optimal Number of Suppliers to Mitigate Supply Disruption: A case of Indian Locomotive Manufacturer

Padhi, Sidhartha S.; Rajnish Kumar; Ashutosh Sarkar (International Journal of Logistics Systems and Management, 2017-04)

Dependencies over supplier for efficient functioning of firms are evident in academic literature as well as in practice. However, disruption in supplies can hinder the entire manufacturing process. This article applies a ...
Evolution of sustainability in supply chain management: A literature review

Rajeev, A.; Pati, Rupesh K.; Padhi, Sidhartha S.; Kannan, Govindan (Elsevier: Journal of Cleaner Production, 2017-05-19)

An ever-increasing demand for products and their consumption has put pressure on industrial output and their supply chains, and that demand has resulted in negative impacts on the environment and society. Increasing rates ...
Supplier Selection of an Indian Heavy Locomotive Manufacturer: An Integrated Approach using Taguchi Loss Function, TOPSIS, and AHP

Padhi, Sidhartha S.; Rajnish Kumar; Ashutosh Sarkar (IIMB Management Review, 2017-08)

Supplier selection is increasingly seen as a strategic issue for any firm. In the literature, a variety of supplier selection criteria and methodologies have been reported. However, in this article, to find the most ...

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