نتایج جستجو برای: network design

تعداد نتایج: 1553461  

Journal: :international journal of environmental research 0
sh. afandizadeh faculty of civil engineering, iran university of science and technology, iran n. kalantari faculty of civil engineering, iran university of science and technology, iran h. rezaeestakhruie faculty of civil engineering, sharif university, iran

nowadays, the environmental impact of transportation project and, especially air pollution impacts, are major concerns in evaluating transportation projects. based on this concern, beside definition of traditional objective functions like total travel time and total investment cost, different type of environmental related function is considered as objective function in urban network design. in ...

Journal: :journal of ai and data mining 2014
seyed mojtaba hosseinirad s.k. basu

in this paper, we study wsn design, as a multi-objective optimization problem using ga technique. we study the effects of ga parameters including population size, selection and crossover method and mutation probability on the design. choosing suitable parameters is a trade-off between different network criteria and characteristics. type of deployment, effect of network size, radio communication...

Journal: :کشاورزی (منتشر نمی شود) 0
حمیدرضا حجازی کارشناس ارشد مهندسی تاسیسات آبیاری، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج صلاح کوچک زاده دانشیار، گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی ومنابع طبیعی، دانشگاه تهران، کرج

a design discharge is an important issue in the design process of pressurized irrigation networks. underestimating the desing discharge affect, the required pressure and offtake discharge, increase the cost of the network. because of the lack of a standard and reliable method for this propuse, usually different approches are used by designers. the network fails to provide the required flow rate...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...

Journal: :مهندسی صنایع 0
محمدجعفر تارخ دانشیار دانشکده صنایع - دانشگاه خواجه نصیرالدین توسی مهسا اسمعیلی گوکه دانشجوی کارشناسی ارشد it- دانشکده صنایع دانشگاه خواجه نصیرالدین توسی شهره ترابی دانشجوی کارشناسی ارشد مهندسی صنایع – دانشگاه پیام نور تهران

the environmental rules of reverse logistic networks have caused important economic growth in the past decades. to integrate forward logistic networks with reverse logistics networks a helpful method is to design both networks simultaneously. considering more retrieval choices in modeling reverse logistic systems can be very critical. this article contains a mixed integer linear programming mod...

Journal: :international journal of environmental research 2012
sh. afandizadeh n. kalantari h. rezaeestakhruie

nowadays, the environmental impact of transportation project and, especially air pollution impacts, are major concerns in evaluating transportation projects. based on this concern, beside definition of traditional objective functions like total travel time and total investment cost, different type of environmental related function is considered as objective function in urban network design. in...

Journal: :journal of rehabilitation in civil engineering 2015
golamali shafabakhsh hossein naderpour reza noroozi

spending costs in construction of road pavements has turned this subject into one of the significant points in transportation infrastructure of countries. concrete slabs consider as a paving method with ability of reducing the rehabilitation needs. therefore, to manage costs and optimize the thickness of concrete pavements, recognizing the amount of determinative factors’ influence will be requ...

In this paper, we study WSN design, as a multi-objective optimization problem using GA technique. We study the effects of GA parameters including population size, selection and crossover method and mutation probability on the design. Choosing suitable parameters is a trade-off between different network criteria and characteristics. Type of deployment, effect of network size, radio communication...

Journal: :مهندسی صنایع 0
طه حسین حجازی دکتری مهندسی صنایع دانشگاه آزاد اسلامی واحد قزوین، باشگاه پژوهشگران جوان و نخبگان مرتضی عباسی استادیار مجتمع مدیریت و فناوری های نرم دانشگاه صنعتی مالک اشتر

responsibility in demand networks is one of the most important measures of performance. the concept of agility and flexibility in service and production. variety and changes in demand need more flexible network design that can cope with potential shortage and delay. this paper presents new mathematical model to optimize the design of demand network when there are highly variable demands. it als...

Journal: :journal of computational applied mechanics 0
mohammad hosein salimi university of tehran majid roshanfar teacher assistant

one of the most crucial elements of each country is electricity distribution networks (edn). awareness of accidents in edn could be very important in the conservation and utilization of them. the accurate and periodic inspections can provide a good service to subscribers. the goal of this project is to fabricate a quad rotor, which can do an accurate and a periodic inspection. the design and im...

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