نتایج جستجو برای: model development

تعداد نتایج: 3285841  

پایان نامه :دانشگاه تربیت معلم - سبزوار - دانشکده برق و کامپیوتر 1394

پنل های خورشییدی دارای مشیه ه جریان -ولتاژ غیر خطی بوده و تنها در یک نقطه کار خاص، حداکثر توان را تولید می کنند. این نقطه بهینه توان با تغییر دما و شیدت نور تغییر می کند. روش های مهتلفی برای ردیابی نقطه حداکثر توان به صورت free model و based model معرفی شده است. این تحقیق روش جدیدی جهت بهبود عملکرد ردیابی نقطه حداکثر توان پنل های خورشیدی جدا از شبکه ارائه می دهد و الگوریتم روش پیشینهادی از دو...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

ژورنال: تحقیقات موتور 2021
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This article describes the advanced design of the car engine at IPCO. Product development models including model V, gateway and network are described first. In the following, in order to introducing engine production to readers, some of the literature and subsystems of the engine are briefly presented. There are also different levels of engine development programs, either low, medium, high, or ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1382

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

The literature on language teaching and learning has mostly accentuated motivation as one of the crucial factors influencing learners, but demotivating factors can be of crucial importance as well. In this vein, considering a grounded theory approach, this study has tried to investigate the demotivating factors influencing Iranian university students of non-English majors utilizing an interview...

Modern banks have shifted their function as purely administrative, economic and industrial entities into socio-political institutions that must be sensitive to the surrounding environment. This function has always been neglected. This study was conducted based on primary, secondary, and tertiary data and reviews the full text of 75 studies selected from more than 245 studies. The selected elect...

Journal: :برنامه ریزی و بودجه 0
اکبر احمدی akbar ahmadi دانشگاه علامه طباطبایی محمدمهدی بهکیش mohamad mahdi bahkish دانشگاه علامه طباطبایی

from among the major problems of iran's present financial resources allocation system, one could refer to unclear relations between financial resources allocation policies and economic indicators as well as insufficient attention to the allocations according to projects priorities, absence of a controlled mechanism for allocation aimed for decreasing or eliminating deviations from the plan...

Journal: :international journal of environmental research 2014
m.r. monazzam esmaeelpour m.s. sekhavatjou z. chabi ahwazi

one of the important factors in urban construction designs is noise prevention. according toresults of this study (2011-2012), a suggested model is presented for traffic noise compatible to conditions in ahvaz. data was colleted to design a model from totally 112 measuring stations, 4 weekdays and 2 intervals as rush hours, yielding to a total number of 1344 traffic noise measurements (leq) and...

ژورنال: :مجله آمایش جغرافیایی فضا 2015
کرامت الله زیاری امیر شریفی کیومرث نعیمی

حس مکانی ناشی از سکونت در محله های مختلف یک شهر متفاوت است. بالا بودن حس مکان در یک شهر بیانگر مهم بودن شهر برای ساکنان آن است که این می تواند برای شهر نتایج مثبتی را به همراه داشته باشد. برنامه ریزان شهری باید به مفهوم حس مکان به عنوان یکی از مولفه های شهر مطلوب بنگرند و برای نیل به آن اقدام به برنامه ریزی کنند. یکی از استراتژی های تحکیم حس مکان ارتقای سطح توسعه اجتماعی است. هدف از این تحقیق س...

Journal: :journal of mining and environment 2016
m. ataei e. tajvidi asr r. khalokakaie k. ghanbari m. r. tavakoli mohammadi

environmental impact assessment (eia) has led to the dominance of planners on the natural environment of the regions, providing the possibility of continuously monitoring and controlling the status quo by management staff. in this regard, a new semi-quantitative model is presented for the eia of the eastern alborz coal mining complex using the matrix method, and determining the corresponding im...

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