نتایج جستجو برای: regulator

تعداد نتایج: 75004  

Journal: :journal of computer and robotics 0
mohammad fiuzy school of electrical engineering, iran university of science and technology, tehran, iran sayed kamaledin mousavi mashhadi school of electrical engineering, iran university of science and technology, tehran, iran

in this study, a new approach for control (treatment) of aids based on patient entry drug. one of the main problems related to aids, is lack of control, lack of identification and early treatment of this disease. today physicians more than anything, control the disease relying on their experience and knowledge and time-consuming and complex experiments, nevertheless, human errors are inevitable...

A. Aryaei A. R. Shahani* H. Esmaili M. Najar S. Mohammadi

In this paper, the dynamic simulation for a high pressure regulator is performed to obtain the regulator behavior. To analyze the regulator performance, the equation of motion for inner parts, the continuity equation for diverse chambers and the equation for mass flow rate were derived. Because of nonlinearity and coupling, these equations are solved using numerical methods and the results are ...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
a mehrafarin medicinal plants research center, institute of medicinal plants, acecr, karaj, iran ar etminan department of plant breeding, kermanshah branch, islamic azad university, kermanshah, iran tel: +98-833-7243181, fax: +98-833-7243196سازمان اصلی تایید شده: پژوهشکده‮ ‬گیاهان‮ ‬دارویی‮ ‬جهاد‮ ‬دانشگاهی (institute of medicinal plants) b delkhosh department of agronomy, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی کرمانشاه (islamic azad university of kermanshah) m golrokhan department of agronomy, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

background: stevia rebaudiana bertoni, an important anti-diabetic medicinal plant, becomes an inevitable alternative to sugar. due to the propagation difficulties, tissue culture is the best alternative for rapid mass propagation of stevia plants. objective: the present study was conducted to optimize a protocol for rapid micropropagation of stevia rebaudiana by shoot tip explants and to invest...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2011
a. r. shahani* h. esmaili a. aryaei s. mohammadi m. najar

in this paper, the dynamic simulation for a high pressure regulator is performed to obtain the regulator behavior. to analyze the regulator performance, the equation of motion for inner parts, the continuity equation for diverse chambers and the equation for mass flow rate were derived. because of nonlinearity and coupling, these equations are solved using numerical methods and the results are ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1387

آهن یک ریز مغزی ضروری است اما علیرغم این ویژگی دارای مشکلاتی همچون ایجاد سمیت در غلظت های بالا و عدم در دسترس بودن برای میکروارگانیسم ها ی هوازی می باشد . باکتری اشرشیاکولی با بکارگیری حداقل دو نوع پروتئین ذخیره کننده آهن با این مشکلات مقابله می کند که این پروتئین ها عبارتند از : ftna ( فریتین ) که پروتئین اصلی ذخیره آهن است و باکتریوفریتین حاوی هم ( bfr ) که نقش آن بطور کامل مشخص نشده است . یک...

Journal: :journal of advances in computer research 2013
meissam khatibi nia ali akbar gharaveisi

controller design and optimization problems, with more than one objective, are referred as multiple objectives or multiple attributed problems. in this paper, a novel method is proposed for designing optimum pid controller that is called genetic multiple attributed decision making method (gmadm). this method is newer than the previous methods and in this paper some options are considered that h...

Journal: :iranian journal of allergy, asthma and immunology 0
reza alibakhshi mahdi zamani

cystic fibrosis (cf) is the most common inherited disorder in caucasian populations, with over 1400 cystic fibrosis transmembrane conductance regulator (cftr) mutations. the type of mutations and their distributions varies widely between different countries and/or ethnic groups. seventy iranian cystic fibrosis patients were screened for the cftr gene mutation using arms/pcr (amplification refra...

This article presents a sliding mode control (SMC) with artificial neural network (ANN) regulator for the doubly fed induction generator (DFIG) using two-level neural pulse width modulation (NPWM) technique. The proposed control scheme of the DFIG-based wind turbine system (WTS) combines the advantages of SMC control and ANN regulator. The reaching conditions, robustness and stability of the sy...

Adjustable throat-area expansion valves (ATAEV) are functioned as area regulator control units. In literatures, there are many expansion valves normally used in automotive air-conditioning systems, as regulator and electrical type valves. Nevertheless, a review study for such issue has not been introduced, according to the best of author knowledge. The present paper presents a review study for ...

طاهر, سید عباس , عبدالعلی پور, علی , همتی, رضا ,

In this paper, design of optimal control for the UPFC controllers including power-flow, DC voltage regulator and generator terminals voltage controller are presented. The controllers were designed based on GA optimization method for linearized modified Phillips Heffron model of SMIB in state space form. For nominal operating condition, the eigen-values of the system were obtained which clearly ...

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