Browsing Endüstri Mühendisliği Bölümü / Department of Industrial Engineering by Issue Date
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Sistem Geliştirme Projelerinde Kullanılan Olgunluk Değerlendirme Araçları Üzerine Bir Literatür Araştırması
(Millî Savunma Üniversitesi Alparslan Savunma Bilimleri Enstitüsü, 2014)The system development projects in the defense industry differ from the ones in other sectors with their big budgets, complexity, and provision of important capability. The organizations taking part in the acquisition ... -
Radiation Dose Reduction in Thorax CT
(Çukurova Üniversitesi, 2014)Computerized Tomography is a method of working with X-rays and is increasing in application day by day. Scientists continue to conduct studies by reducing the dose of X-ray that patients are exposed to in order to reduce ... -
On the Moments of a Semi-Markovian Random Walk with Gaussian Distribution of Summands
(Taylor & Francis Inc, 2014-01)In this article, a semi-Markovian random walk with delay and a discrete interference of chance (X(t)) is considered. It is assumed that the random variables (n), n=1, 2,..., which describe the discrete interference of ... -
A sharp bound for the ergodic distribution of an inventory control model under the assumption that demands and inter-arrival times are dependent
(Hindawi Publishing Corporation, 2014-02)In this study, a stochastic process which represents a single-item inventory control model with (s, S)-type policy is constructed when the demands of a costumer are dependent on the inter-arrival times between consecutive ... -
Some asymptotic results for the semi-Markovian random walk with a special barrier
(ISOSS Publ, 2014-07)In this paper, a semi-Markovian random walk with a discrete interference of chance (X(t)) is considered. Under the assumption that the random variables {zeta(n)}, n >= 1 describing discrete interference of chance are in ... -
Investigation of fuzzy inventory model of type (s, S) with Nakagami distributed demands
(IOS Press, 2015)In this study, a fuzzy inventory model of type (s, S) is considered under Nakagami distribution of demands. We first obtain the membership function of the fuzzy renewal function when the amount of demand has Nakagami ... -
Weak convergence theorem for the ergodic distribution of a random walk with normal distributed interference of chance
(Turkic World Mathematical Soc, 2015)In this study, a semi-Markovian random walk process (X (t)) with a discrete interference of chance is investigated. Here, it is assumed that the zeta(n), n = 1; 2; 3, ..., which describe the discrete interference of chance ... -
Managing transshipments in a multi-retailer system with approximate policies
(Palgrave Macmillan Ltd, 2015)Using the right transshipment policy is important when transshipments are exercised under demand uncertainty. Optimal transshipment policy can be quite complex in a multi-firm system as optimal actions depend on all system ... -
RFID in production and service systems: Technology, applications and issues
(Springer, 2015)Radio Frequency Identification (RFID) is a technology used for identification of objects and information transfer from a distance though radio waves. Different types of RFID tags are used for different applications. ... -
A production scheduling model and analysis for the maintenance repair and overhaul service providers
(Gazi Univ, Fac Engineering Architecture, 2015)Maintenance, repair and overhaul (MRO) are regulated and necessary activities for the airline sector to ensure the safety and continuity of flights. Both military and commercial aircrafts must go through MRO at regulated ... -
A New Estimator for Stationary Distribution of the Inventory Model of Type (s, S)
(Gazi Univ, 2015)We consider inventory model of type (s, S) which is used mostly in stock control policy. It is very important to know characteristics of an inventory model of type (s, S), such as stationary distribution. Using the straight ... -
Bid price optimization for truckload carriers in simultaneous transportation procurement auctions
(Pergamon-Elsevier Science Ltd, 2015-03)We study simultaneous transportation procurement auctions from a truckload carrier's perspective. We formulate a stochastic bid price optimization model aimed at maximizing the carrier's expected profit. The model accounts ... -
Asymptotic Properties of the Straight Line Estimator for a Renewal Function
(Univ Kebangsaan Malaysia, 2015-07)In estimation problems in renewal function, when the distribution is not known, nonparametric estimators of renewal function are used. Frees (1986a, Warranty analysis and renewal function estimation, Naval Res. Logist. ... -
Cyclic Delivery Schedules for an Inventory Routing Problem
(Informs, 2015-11)We consider an inventory routing problem where a common vendor is responsible for replenishing the inventories of several customers over a perpetual time horizon. The objective of the vendor is to minimize the total cost ... -
Asymptotic approach for a renewal-reward process with a general interference of chance
(Taylor & Francis Inc, 2016)In this study, a renewal-reward process with a discrete interference of chance is constructed and considered. Under weak conditions, the ergodicity of the process X(t) is proved and exact formulas for the ergodic distribution ... -
Automated robotic assembly line design with unavailability periods and tool changes
(Inderscience Enterprises Ltd, 2016)We focus on an assembly line design problem of a fully automated robotic spot-welding line. Different from existing studies, we take the prescheduled unavailability periods, such as lunch and tea breaks, into account in ... -
Asymptotic Rate for Weak Convergence of the Distribution of Renewal-Reward Process with a Generalized Reflecting Barrier
(Springer-Verlag Berlin, 2016)In this study, a renewal-reward process (X(t)) with a generalized reflecting barrier is constructed mathematically and under some weak conditions, the ergodicity of the process is proved. The explicit form of the ergodic ... -
On The Application Of Random Walk With Delay And Pareto Distributed Interference Of Chance To An Insurance Model
(Gazi Univ, 2016)In this study, a semi-Markovian random walk with Pareto distributed interference of chance and delay is considered. Some exact formulas for the first four stationary moments of the process are obtained when the random ... -
Weak convergence theorem for ergodic distribution of stochastic processes with discrete interference of chance and generalized reflecting barrier
(Siam Publications, 2016)In this paper, a stochastic process with discrete interference of chance and generalized reflecting barrier (X (t)) is constructed and the ergodicity of this process is proved. Using basic identity for random walk processes, ... -
A mobile asset sharing policy for hospitals with real time locating systems
(IOS Press, 2016)BACKGROUND: Each year, hospitals lose a considerable amount of time and money due to misplaced mobile assets. In addition the assets which remain in departments that frequently use them depreciate early, while other assets ...
