نتایج جستجو برای: commodity network transportation with demand

تعداد نتایج: 9517663  

The fixed-charge Capacitated Multi-commodity Network Design (CMND) is a well-known problem of both practical and theoretical significance. Network design models represent a wide variety of planning and operation management issues in transportation telecommunication, logistics, production and distribution. In this paper, Ant Colony Optimization (ACO) based neighborhoods are proposed for CMND pro...

2011
Kenneth Button

The transportation system comprises many sub-systems often characterized by the mode of transport involve, the geographical nature of its location or the types of transportation activity engaged upon. This article examines how economists view the transportation system and looks at some of the key concepts that they deploy in their analyses. The network nature of transportation systems generates...

2016
Jsen-Shung Lin

Many real-world systems such as manufacturing systems, transportation systems and logistics/distribution systems that play important roles in our modern society can be regarded as multicommodity flow networks whose arcs have independent, finite and multi-valued random capacities. Such a flow network is a multistate system with multistate components and its reliability for level (d;c), i.e., the...

2016
Philip S Chodrow Zeyad Al-Awwad Shan Jiang Marta C González

Urban transportation systems are multimodal, sociotechnical systems; however, while their multimodal aspect has received extensive attention in recent literature on multiplex networks, their sociotechnical aspect has been largely neglected. We present the first study of an urban transportation system using multiplex network analysis and validated Origin-Destination travel demand, with Riyadh's ...

Journal: :CoRR 2017
M. Hadi Amini Orkun Karabasoglu

Electrified transportation and power systems are mutually coupled networks. In this paper, a novel framework is developed for interdependent power and transportation networks. Our approach constitutes solving an iterative least cost vehicle routing process, which utilizes the communication of electrified vehicles (EVs) with competing charging stations to exchange data, such as electricity price...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1382

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

In this paper, a bi-objective pharmaceutical supply chain network under uncertainty demand and transportation costs is modeled and developed. To control the uncertainty parameters, the robust optimization method is considering. The main objective of this paper determines the number and location of potential facilities such as drug manufacture centers and drug distribution centers by considering...

2010

Although the transportation problem can be solved as an ordinary linear programming problem, its special structure can be exploited, resulting in a special-purpose algorithm, the so-called transportation method. The method was actually developed in 1941 by F.L. Hitchcock and therefore preceded the simplex method by half a dozen years. Still, it can be viewed as a streamlined version of the simp...

Journal: :محیط شناسی 0
مهرداد هادی پور استادیار گروه محیط زیست، دانشکدة کشاورزی و منابع طبیعی، دانشگاه اراک شراره پورابراهیم دانشگاه اراک، دانشکدة کشاورزی و منابع طبیعی، استادیار گروه محیط زیست،

increasing urban network has both positive (accessibility) and negative (air pollution) impacts. in this research air quality is chosen as key elements with respect to their critical roles in quality of life and urban health. the overall objective of this study is to develop a mathematical model to plan appropriate locations for residential land uses and urban transportation network development...

2011
Avinash Unnikrishnan

Continuous real-time monitoring of shipment cost and delivery time is increasingly used by companies to reduce transportation costs while avoiding costly delays or disruptions. Recourse refers to the ability of the shipper to update his/her routing strategy depending on information obtained about the state of the network disruptions. This research proposes an adaptive routing policy that will h...

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