نتایج جستجو برای: docking . Network design . Truck allocation . Response time . Queuing theory

تعداد نتایج: 4478118  

E. Teimoury Reza Rashid S. M. Seyedhoseini

Cross-docking is a logistic concept, which plays an important role in supply chain management by decreasing inventory holding, order packing, transportation costs and delivery time. Paying attention to these concerns, and importance of the congestion in cross docks, we present a mixed-integer model to optimize the location and design of cross docks at the same time to minimize the total transpo...

2000
Jesper M. Johansson Salvatore T. March J. David Naumann

Network latency and local update are the most significant components of update response time in a distributed database system. Effectively designed distributed database systems can take advantage of parallel processing to minimize this time. We present a design approach to response time minimization for update transactions in a distributed database. Response time is calculated as the sum of loc...

We present a bi-objective model for a green truck scheduling and routing problem at a cross-docking system. This model determines three key decisions at the cross dock: (1) defining a sequence and schedule of inbound trucks at the receiving door, (2) specifying a sequence and a schedule of outbound trucks at the shipping door, and (3) determining the routes of the outbound truck while serving c...

2002
Stephen Fuller

Agricultural transportation is often characBACKGROUND terized by seasonal and cyclical traffic flows that unfavorably affect the logistical efficiency of the marketing system. Congestion problems are an important link in the arise in the truck-to-ship intermodal grain export grain marketing system. Currently, 66 transfer system at the Port of Houston. Seaport elevators operate in the U.S. and t...

Journal: :iranian journal of science and technology (sciences) 2011
m. bagherpour

in this research, both resource allocation and reactive resource allocation problems in multi-server dynamic pert networks are analytically modeled, where new projects are expected to arrive according to a poisson process, and activity durations are also known as independent random variables with exponential distributions. such system is represented as a queuing network, where multi servers at ...

2012
Subhash Lakshminarayana

Future wireless communication systems are expected to see an explosion in the wireless traffic which is mainly fueled by mobile video traffic. Due to the time varying and bursty nature of video traffic, wireless systems will see a wider range of fluctuations in their traffic patterns. Therefore, traditional physical layer based algorithms which perform resource allocation under the assumption t...

Journal: :iranian red crescent medical journal 0
mohammadkarim bahadori health management research center, baqiyatallah university of medical sciences, tehran, ir iran seyed mohsen mohammadnejhad health management research center, baqiyatallah university of medical sciences, tehran, ir iran ramin ravangard school of management and medical information sciences, shiraz university of medical sciences, shiraz, ir iran ehsan teymourzadeh department of health management and economics, school of public health, tehran university of medical sciences, tehran, ir iran; department of health management and economics, school of public health, tehran university of medical sciences, porsina ave, tehran, ir iran, tel: + 98-2188989129, fax: +98-2188991113

conclusions: the patients' waiting times and the number of patients waiting to receive services in both shifts could be reduced by using multitasking persons and reallocating them to the time-consuming stage of filling prescriptions, using queuing theory and simulation techniques. background: hospital pharmacy is responsible for controlling and monitoring the medication use process and ensures ...

Hajiaghaei-Keshteli, M., Jafari-Kaliji, M., Sadeghpoor-Haji, M.,

Cross docking is a logistics strategy that is now used by a large number of firms in the various industries. Cross docking effectively a significant reduction in transport costs, without increasing inventory and at the same time maintain the level of service to customers. It also can cross dock order to reduce cycle time, improve flexibility and responsiveness lead distribution network. In this...

Journal: :Computer Networks 2014
Prasad Calyam Sudharsan Rajagopalan Sripriya Seetharam Arunprasath Selvadhurai Khaled Salah Rajiv Ramnath

One of the significant challenges for Cloud Service Providers (CSPs) hosting “virtual desktop cloud” (VDC) infrastructures is to deliver a satisfactory quality of experience (QoE) to the user. In order to maximize the user QoE without expensive resource overprovisioning, there is a need to design and verify resource allocation schemes for a comprehensive set of VDC configurations. In this paper...

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