نتایج جستجو برای: Augmented epsilon constraint
تعداد نتایج: 139014 فیلتر نتایج به سال:
Strategic development goals is achieved by investment potential utilization of each region. Some of these goals may be inconsistent. Therefore, Governments want to align a combination of different investment objectives and sometimes contradictory as far as possible. This study aimed to explain the mathematical model for investment projects by providing an integer linear programming model with t...
مکانیابی و تخصیص خدمات بیمارستانی با در نظر گرفتن معیارهای هزینه و کارایی: مطالعه موردی شهرستان آمل
ABSTRACT Introduction: Locating hospitals and health care centers and assigning them to clients is one of the major challenges that managers and urban planners encounter it. Right decision in this area is so important that wrong decisions in addition to increasing costs of providing health services, can cause irreparable damages to the individual and social health. The efficiency of such models...
In the past decade, fuel consumption and CO2 emission have increased in the airline industry. Large CO2 footprint has a damaging effect on the environment. Global concerns over this issue has made the airline industry to be greener. Most efforts of the green airline industry are improving the fuel consumption to reduce the CO2 emission and its environmental damage. Here, we use cruise speed con...
Regarding the advances in technology and anxieties around high and growing prices of fossil fuels, government incentives increase to produce cleaner and sustainable energy through distributed generations. This makes trends in the using microgrids which consist of electric demands and different distributed generations and energy storage systems. The optimum operation of microgrids with consideri...
در بخش اول این پژوهش، مساله جنگل فراگیر کمینه با محدودیت در قابلیت اطمینان معرفی گردیده که دارای کاربردهای بسیاری در زمینه طراحی شبکه های ارتباطی می باشد. گراف مفروض در این مساله دارای دو مجموعه گره شامل گره های خدمت دهنده و مشتریان بوده که تقاضای هر یک از مشتریان از طریق یکی از گره های خدمت دهنده برآورده می-گردد. افزون بر این، برای هر یال از این گراف دو پارامتر هزینه و قابلیت اطمینان درنظر گرف...
Using second-generation biomass and biofuel deal with environmental pollution and CO2 emissions. Therefore, this paper design an integrated multi-period bi-objective biofuel supply chain network using support vector machine (SVM) and economic analysis to reduce the cost of generating biofuels and CO2 emissions. The economic analysis consists of three scenarios for supplyin...
Modeling and optimal solving of supply chain management problems lead to efficient decision making in strategic planning and supply chain operations, resulting in a competitive advantage. Today, with the planning of a sustainable supply chain, in addition to achieving economic goals, it is possible to meet social and environmental objectives and considerations. This research deal with sustainab...
Assembly lines are flow-oriented production systems that are of great importance in the industrial production of standard, high-volume products and even more recently, they have become commonplace in producing low-volume custom products. The main goal of designers of these lines is to increase the efficiency of the system and therefore, the assembly line balancing to achieve an optimal system i...
The oil industry is one of the biggest and most effective industries in the world. Duo to complex structure of petroleum supply chains and price and demand uncertainties, supply chain design is a suitable method for improving this industry. The complexity of supply chains causes increase vulnerability to disruption. Therefore, in order to design this supply chain, attention to resiliency that e...
The oil industry is one of the biggest and most effective industries in the world. Duo to complex structure of petroleum supply chains and price and demand uncertainties, supply chain design is a suitable method for improving this industry. The complexity of supply chains causes increase vulnerability to disruption. Therefore, in order to design this supply chain, attention to resiliency that e...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید