نتایج جستجو برای: artificial neural network transformer loss and life

تعداد نتایج: 17087938  

Journal: :پژوهش های جغرافیای طبیعی 0
علی نصیری مجتبی یمانی

estimation of pure runoff is a house virtually is complex and different methods of calculation have been proposed. modern methods of solving problems in river engineering and water homes and assess the flow method is used, is that the artificial network pattern of human brain neural network training process, while implementation of the internal relationships between the data and discover for ot...

Due to lack of theory of elasticity, estimation of ultimate torsional strength of reinforcement concrete beams is a difficult task. Therefore, the finite element methods could be applied for determination of strength of concrete beams. Furthermore, for complicated, highly nonlinear and ambiguous status, artificial neural networks are appropriate tools for prediction of behavior of such states. ...

2006
Eleftherios I. Amoiralis Pavlos S. Georgilakis Alkiviadis T. Gioulekas

The selection of the winding material in power transformers is an important task, since it has significant impact on the transformer manufacturing cost. This winding material selection has to be checked in every transformer design, which means that for each design, there is a need to optimize the transformer twice and afterwards to select the most economical design. In this paper, an Artificial...

Journal: :آب و خاک 0
فتحی فتحی محمدی محمدی همایی همایی

abstract prediction of input flow into water resources is regarded as one of the most important issues in optimum planning and management in producing electro-water energy and optimum allocation of water into different consumption sources. different parameters affect on input discharge into dams. climate variables including temperature and rainfall have the most effect on input runoff rate to w...

Journal: :medical journal of islamic republic of iran 0
saeid afshar hamadan payame noor university (pnu), tehran road, hamadan, iran fahimeh abdolrahmani emam hosein medical lab fereshte vakili tanha emam hosein medical lab mahin zohdi seif payame noor university of hamadan kobra taheri payame noor university of hamadan

abstract   background : leukemia is one of the mostcommon cancers in children, comprising more than a third of all childhood cancers. newly affected patients in usa are estimated as 10100cases, and if these cases are diagnosed late or proper treatment is not applied, then it can be mortal. because rapid and proper diagnosis of leukemia based on clinical or medicinal findings (without biopsy) is...

Journal: :iranian journal of oil & gas science and technology 2014
ali khazaei hossein parhizgar mohammad reza dehghani

in this work, artificial neural network (ann) has been employed to propose a practical model forpredicting the surface tension of multi-component mixtures. in order to develop a reliable modelbased on the ann, a comprehensive experimental data set including 15 ternary liquid mixtures atdifferent temperatures was employed. these systems consist of 777 data points generally containinghydrocarbon ...

Journal: :nanomedicine research journal 0
reza aghayari young researchers and elite club, shahrood branch, islamic azad university, shahrood, iran heydar maddah department of chemistry, sciences faculty, arak branch, islamic azad university, arak, iran ali reza faramarzi department of chemical engineering, islamic azad university, saveh branch, saveh, iran hamid mohammadiun department of mechanical engineering, shahrood branch, islamic azad university, shahrood, iran mohammad mohammadiun department of mechanical engineering, shahrood branch, islamic azad university, shahrood, iran

objective(s): this study aims to evaluate and predict the thermal conductivity of iron oxide nanofluid at different temperatures and volume fractions by artificial neural network (ann) and correlation using experimental data. methods: two-layer perceptron feedforward artificial neural network and backpropagation levenberg-marquardt (bp-lm) training algorithm are used to predict the thermal cond...

Journal: :international journal of finance, accounting and economics studies 0
ali asghar anvary rostamy professor, accounting and finance department, faculty of management and economics, tarbiat modares university (tmu). nor addin mousazadeh abbasi master in accounting, faculty of management and economics, tarbiat modares university (tmu). mohammad ali aghaei assistant professor, accounting and finance department, faculty of management and economics, tarbiat modares university mahdi moradzadeh fard assistant professor, accounting and finance department, islamic azad university, karaj branch.

the jamor purpose of the present research is to predict the total stock market index of tehran stock exchange, using a combined method of wavelet transforms, fuzzy genetics, and neural network in order to predict the active participations of finance market as well as macro decision makers.to do so, first the prediction was made by neural network, then a series of price index was decomposed by w...

Journal: :journal of tethys 0

ardekoul fault zone which is along nnw-sse is located in eastern iran and northern part of the sistan subzone. dextral strike-slip fault zone of ardekuol is made of six main segments including korizan (28 km), bohn abad (8.8 km), abiz (32 km), gazkoon (20 km), moein abad (30.4 km), ghal maran (12 km), and two minor segments including olang morgh (12.8 km) and seh pestan (9.6 km).  the studied r...

Journal: :مهندسی صنایع 0
سهراب پوررضا دانشجوی کارشناسی ارشد فناوری اطلاعات- دانشگاه تربیت مدرس حسین اکبری پور دانش آموخته کارشناسی ارشد مهندسی صنایع- دانشگاه تربیت مدرس محمدرضا امین ناصری دانشیار بخش مهندسی صنایع- دانشگاه تربیت مدرس

in today’s business competitive world, decision makers of companies try to employ standard, efficient, theoretical and operational proven methods as a competitive advantage for making their critical strategic business decisions in order to survive in their industry. in this paper, a hybrid model based on fuzzy analytic hierarchy process (fahp) and artificial neural network (ann) is presented. t...

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