نتایج جستجو برای: phase and double

تعداد نتایج: 16972646  

Control of three phase inverters has been an important issue in recent years. This paper proposes active disturbance rejection control (ADRC) scheme for controlling three phase inverters. The main advantage of ADRC that motivated us for using this controller for inverter is that it is model independent.  This controller is used in a double loop structure including an inner current loop and oute...

Journal: :iranian journal of mechanical engineering transactions of the isme 0
ali ghorbanpour arani faculty of mechanical engineering, university of kashan, kashan, iran. hossein vossough faculty of mechanical engineering, university of kashan, kashan, iran reza kolahchi faculty of mechanical engineering, university of kashan, kashan, iran

the aim of the paper is to analyze electro-thermo nonlinear vibration of a double-piezoelectric composite microplate-system (dpcmps) based on nonlocal piezoelasticity theory. the two microplates are assumed to be connected by an enclosing elastic medium which is simulated by pasternak foundation. both of smart composite microplates are made of poly-vinylidene fluoride (pvdf) reinforced by zigza...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مراغه - دانشکده علوم پایه 1393

در حالت کلی معادلات دیفرانسیل با مقادیر اولیه را نمی توان دیفرانسیل می توان جواب طیف وسیعی از مسائل کاربردی را مشخص نمود با روش های تئوری حل نمود، لذا با حل عددی معادلات یک حالت خاص از مسأله مقدار اولیه، مسأله ای به فرم: y^=f(x,y) , y(a)=?, y^ (a)=?^^ است که مشتق اول در آن ظاهر نمی شود. این معادلات طیف وسیعی از پدیده های اطراف ما را شامل می شود، مثلاً معادلاتی که دارای جواب نوسانی هستند از ...

ژورنال: طب مکمل 2014
داودآبادی, معصومه, سید زاده اقدم, نفیسه, وکیلیان, کتایون,

  Introduction: Breathing techniques as Lamaze methods are utilized with the aim to control the labor pain. Breathing techniques help women to well adopt with labor pain. The studies reveal that adoption with labor pain can prevent the prolonged labors. The aim of the present study is to investigate the effects of breathing techniques on the length of labor active phase and its second stage.   ...

Journal: :Journal of Mathematical Analysis and Applications 2021

Journal: :Mathematics in engineering 2023

<abstract><p>We study partial Hölder regularity for nonlinear elliptic systems in divergence form with double-phase growth, modeling non-Newtonian fluids the stationary case.</p></abstract>

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