نتایج جستجو برای: supply network

تعداد نتایج: 815626  

We consider competition between two decentralized supply chains network under demand uncertainty. Each chain consists of one risk-averse manufacturer and a group of risk-averse retailers. These two chains present substitutable products to the geographical dispensed markets. The markets’ demands are contingent upon prices, service levels, and advertising efforts of two supply chains. We formulat...

ژورنال: سلامت کار ایران 2020

Background and Aims: Natural gas is one of the most important energy sources used today in urban communities as cheap and hazardous energy. In this regard, if the government and organizations do not pay attention to the proper infrastructure for gas installations, it will create irreparable risks for that society. The assessment and management of crisis in the various processes can play a key r...

رحمانی , علیرضا , مانی کاشانی , خسرو ,

The goal of this research was achieved to the general condition of bacteriological network of water supply in Hamadan city in 1371. For this purpose the network supply was divided into seven areas during eleven months, taking 1017 samples of water in these areas for the residual chlorine and bacteriological examinations. The results showed that 46.71% of the samples which were tested had resi...

Journal: :iranian journal of fuzzy systems 2015
behnam vahdani

in this research, we address the application of uncertaintyprogramming to design a multi-site, multi-product, multi-period,closed-loop supply chain (clsc) network. in order to make theresults of this article more realistic, a clsc for a case study inthe iron and steel industry has been explored. the presentedsupply chain covers three objective functions: maximization ofprofit, minimization of n...

2003
P. J. Sánchez D. Ferrin Gary W. Godding Hessam S. Sarjoughian Karl G. Kempf

More efficient and effective control of supply networks is conservatively worth billions of dollars to the national and world economy. Developing improved control requires simulation of physical flows of materials involved and decision policies governing these flows. This paper describes our initial work on modeling each of these flows as well as simulating their integration through the synchro...

The supply chain network design not only assists organizations production process (e.g.,plan, control and execute a product’s flow) but also ensure what is the growing need for companies in a longterm. This paper develops a three-echelon supply chain network problem including multiple plants, multiple distributors, and multiple retailers with amulti-mode demand satisfaction policy inside of pro...

Logistics Network Design includes network configuration decisions having long-standing influences on other tactical and operational decisions. Recently, regarding environmental issues and customer awareness and global warming closed-loop supply chain network design is taken into consideration. The proposed network for the integrated forward and reverse logistics is developed by formulating a cy...

2013
Shiho Morishita Takao Nishizeki

Consider a graph G in which each vertex is either a supply vertex or a demand vertex and is assigned a supply or a demand. Such a graph G is called a power supply network. All the supplies and demands are nonnegative constant numbers in an ordinary network, called a steady network [1].This thesis introduces a parametric power supply network, in which all the supplies and demands are functions o...

ژورنال: :چشم انداز مدیریت صنعتی 0
عباس شول دانشگاه علامه طباطبایی مقصود امیری دانشگاه علامه طباطبایی لعیا الفت دانشگاه علامه طباطبایی کاوه خلیلی دامغانی دانشگاه آزاد اسلامی واحد تهران جنوب

چکیده      در این مقاله، برای افزایش کارایی شبکه زنجیره تأمین پیشنهادی، مدل چنددوره­ای و چندمحصولی را با اهداف چندگانه به طور هم زمان درنظر گرفته ایم. برای طراحی شبکه، از مدل برنامه­ریزی ریاضی چندهدفه عدد صحیح مختلط استفاده کردیم و اهداف مسئله شامل حداقل کردن هزینه تولید، کاهش زمان ارسال محصولات و افزایش قابلیت اطمینان زنجیره ­تأمین است. برای حل مدل و ارائه جواب­های نامغلوب، از روش اپسیلون محدو...

The multi-objective optimization for a multi-product multi-period four-echelon supply chain network consisting of manufacturing plants, distribution centers (DCs) and retailers each with uncertain services and uncertain customer nodes are aimed in this paper. The two objectives are minimization of the total supply chain cost and maximization of the average number of products dispatched to custo...

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