نتایج جستجو برای: we can providemany additional costs for maintenance

تعداد نتایج: 11633832  

Journal: :International Review of Environmental and Resource Economics 2021

Journal: :The Journal of Thoracic and Cardiovascular Surgery 2021

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور استان مازندران - دانشکده ریاضی 1390

abstract this thesis includes five chapter : the first chapter assign to establish fuzzy mathematics requirement and introduction of liner programming in thesis. the second chapter we introduce a multilevel linear programming problems. the third chapter we proposed interactive fuzzy programming which consists of two phases , the study termination conditions of algorithm we show a satisfac...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده مهندسی 1389

abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...

Journal: :محیط شناسی 0
سمیه امیرتیموری دکتری اقتصاد منابع طبیعی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس صادق خلیلیان دانشیار گروه اقتصاد کشاورزی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس حمید امیرنژاد دانشیار گروه اقتصاد کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی ساری علی محبی دانشیار گروه مهندسی شیمی، دانشکدۀ فنی، دانشگاه شهید باهنر کرمان

introduction sarcheshmeh copper mine is regarded as the second largest copper deposit in the world. this is one of the largest industrial-mining complexes in the world and the largest producer of copper in iran. this complex plays an important role in iran’s economy. in 2012, this complex created employment for about 8000 people in iran and produced 203065 tons of copper cathodes. however, high...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده ادبیات و علوم انسانی 1389

abstract compound is a word-formation process that are made two free morpheme (independent) and forms a new word with a new meaning that consists of meaning of both two component of compound. avestan language is one of the ancient iranian languages that is one of the indo-iranian languages. indo-iranian languages is one branch of indo-european languages. structure of compound noun and adjectiv...

Cheraghali Khani, Ali , Khoshalhan, Farid ,

  One kind of mid-term production system, aggregate production planning, identifies the optimum production plan for each production period. The goal of aggregate production planning is to forecast future demand swings. On the other hand, maintenance system identifies the proper time for preventive maintenance and restrains from break downs and reduces maintenance costs. Due to the importance of...

Journal: :American journal of public health 2000
G S Zaric P G Barnett M L Brandeau

OBJECTIVES This study determined the cost-effectiveness of expanding methadone maintenance treatment for heroin addiction, particularly its effect on the HIV epidemic. METHODS We developed a dynamic epidemic model to study the effects of increased methadone maintenance capacity on health care costs and survival, measured as quality-adjusted life-years (QALYs). We considered communities with H...

Journal: :تحقیقات مهندسی کشاورزی 0
عباس روحانی استادیار گروه مهندسی بیوسیستم دانشکده کشاورزی دانشگاه فردوسی مشهد مهدی خجسته پور دانشیار گروه مهندسی بیوسیستم دانشکده کشاورزی دانشگاه فردوسی مشهد محمودرضا گلزاریان استادیار گروه مهندسی بیوسیستم دانشکده کشاورزی دانشگاه فردوسی مشهد

replacement of a tractor is an influential factor affecting timely farm operation. the accurate prediction of repair and maintenance costs is essential to selection of a replacement model. this study used empirical data for 60 two-wheel drive (2wd) tractors from astan ghods-e razavi agroindustry. the types and numbers of tractors used were the massey ferguson 285 (17), fiat (10), john deere 314...

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