Search Results - subject:"Operating characteristics"

The Labor Illusion: How Operational Transparency Increases Perceived Value

Buell, Ryan W.; Norton, Michael I. - In: Management Science 57 (2011) 9, pp. 1564-1579

Aubiquitous feature of even the fastest self-service technology transactions is the wait. Conventional wisdom and operations theory suggest that the longer people wait, the less satisfied they become; we demonstrate that because of what we term the labor illusion, when websites engage in...

Persistent link: https://www.econbiz.de/10009293054

Torque and power characteristics of a helium charged Stirling engine with a lever controlled displacer driving mechanism

Karabulut, H.; Çınar, C.; Oztürk, E.; Yücesu, H.S. - In: Renewable Energy 35 (2010) 1, pp. 138-143

This study presents test results of a Stirling engine with a lever controlled displacer driving mechanism. Tests were conducted with helium and the working fluid was charged into the engine block. The engine was loaded by means of a prony type micro dynamometer. The heat was supplied by a...

Persistent link: https://www.econbiz.de/10011044516

A group acceptance sampling plan for truncated life test having Weibull distribution

Aslam, Muhammad; Jun, Chi-Hyuck - In: Journal of Applied Statistics 36 (2009) 9, pp. 1021-1027

In this paper, a group acceptance sampling plan for a truncated life test is proposed when a multiple number of items as a group can be tested simultaneously in a tester, assuming that the lifetime of a product follows the Weibull distribution with a known shape parameter. The design parameters...

Persistent link: https://www.econbiz.de/10008466734

Note--Replenishment Sequencing in a Supply Chain with Balanced Ordering

Zhang, Sheng Hao; Cheung, Ki Ling - In: Manufacturing & Service Operations Management 10 (2008) 2, pp. 198-203

This paper studies a supply chain with one supplier and multiple heterogeneous retailers where base-stock policies are practiced. The supplier's performance, in terms of optimal cost, optimal stocking level, and implied service level, is investigated under different retailer replenishment...

Persistent link: https://www.econbiz.de/10009218735

The (r,q) policy for the lost-sales inventory system when more than one order may be outstanding

Johansen, Søren Glud; Thorstenson, Anders - Ehrvervøkonomisk Institut, Institut for Økonomi - 2004

We study the continuous-review (r; q) system in which un_lled demands are treated as lost sales. The reorder point r is allowed to be equal to or larger than the order quantity q. Hence, we do not restrict our attention to the well-known case with at most one replenishment order outstanding, but...

Persistent link: https://www.econbiz.de/10005750428

A Bayesian Hierarchical Approach to Multirater Correlated ROC Analysis

Johnson, Tim; Johnson, Valen - Berkeley Electronic Press - 2004

In a common ROC study design, several readers are asked to rate diagnostics of the same cases processed under different modalities. We describe a Bayesian hierarchical model that facilitates the analysis of this study design by explicitly modeling the three sources of variation inherent to it....

Persistent link: https://www.econbiz.de/10005750994

Evaluation of Group Sequential Clinical Trial Designs

Emerson, Scott; Kittelson, John; Gillen, Daniel - Berkeley Electronic Press - 2004

. Thus the basis used to initially define a stopping rule is relatively unimportant so long as the operating characteristics … of the stopping rule are fully investigated. In this paper we describe how the operating characteristics of a particular … methods of presenting Bayesian operating characteristics over a range of prior distributions and discuss the difficulty …

Persistent link: https://www.econbiz.de/10005751060

Managing operating assets to create value

Byers, Steve S.; Groth, John C.; Wiley, Marilyn K. - In: Management Decision 35 (1997) 2, pp. 133-142

Provides the conceptual structure and practical framework for analysing the effects which changes in operating cycle variables will have on economic value. Focuses on important issues and techniques in analysing and managing raw materials, work in process, finished goods and accounts receivable....

Persistent link: https://www.econbiz.de/10014933807

Analysis of a Production/Inventory System Subject to Random Disruptions

Moinzadeh, Kamran; Aggarwal, Prabhu - In: Management Science 43 (1997) 11, pp. 1577-1588

) production policy for such systems and develop expressions for the operating characteristics of the system. The properties of the …

Persistent link: https://www.econbiz.de/10009197831

Acceleration model in the heterogeneous case of the general graded response model

Samejima, Fumiko - In: Psychometrika 60 (1995) 4, pp. 549-572

Persistent link: https://www.econbiz.de/10005757743