نتایج جستجو برای: حالت گذرای ولتاژ ثانویهی cvt

تعداد نتایج: 43610  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی شیراز - دانشکده مهندسی برق و الکترونیک 1392

هدف این پایان نامه انتخاب بهینه مکان، اندازه و تنظیم پارامترهای جبرانساز راکتیو استاتیک (svc) در خطوط انتقال بلند و شبکه قدرت چند ماشینه بزرگ می باشد. در این پایا ن نامه چهار هدف بهبود پایداری گذرای سیستم قدرت، کاهش هزینه سرمایه گذاری svc، بهبود پروفیل ولتاژ و کاهش تلفات سیستم قدرت در نظر گرفته شده است. این مسئله به صورت یک تابع چند هدفه فرمول بندی شده و برای حل آن از بهینه سازی ازدحام ذرات چند...

1998
Peter Lüdemann Darius G. Nabavi Karsten Papke Gerd Assmann Bernd Ringelstein

Background and Purpose—Different coagulation disorders have been associated with cerebral venous thrombosis (CVT). Until now, fewer than 50 patients have been reported with CVT and the factor V Leiden (FVL) mutation. Although the prevalence of FVL-positive patients with CVT ranged from 10% to 25%, it was as low as 0.5% to 3% in the control groups. Most other studies had not systematically searc...

Journal: :BMC pulmonary medicine 2016
James F Donohue Robert Wise William W Busse Sandra Garfinkel Valentina B Zubek Mo Ghafouri Raymond C Manuel Rozsa Schlenker-Herceg Eugene R Bleecker

BACKGROUND Many patients with asthma require frequent rescue medication for acute symptoms despite appropriate controller therapies. Thus, determining the most effective relief regimen is important in the management of more severe asthma. This study's objective was to evaluate whether ipratropium bromide/albuterol metered-dose inhaler (CVT-MDI) provides more effective acute relief of bronchospa...

Journal: :Stroke 1998
P Lüdemann D G Nabavi R Junker E Wolff K Papke H Buchner G Assmann E B Ringelstein

BACKGROUND AND PURPOSE Different coagulation disorders have been associated with cerebral venous thrombosis (CVT). Until now, fewer than 50 patients have been reported with CVT and the factor V Leiden (FVL) mutation. Although the prevalence of FVL-positive patients with CVT ranged from 10% to 25%, it was as low as 0.5% to 3% in the control groups. Most other studies had not systematically searc...

Journal: :The Journal of pharmacology and experimental therapeutics 2009
Jane Shearer David L Severson Lin Su Luiz Belardinelli Arvinder K Dhalla

Reducing the availability and uptake of fatty acids is a plausible pharmaceutical target to ameliorate glucose intolerance and insulin resistance. CVT-3619 [2-{6-[((1R,2R)-2-hydroxycyclopentyl) amino]purin-9-yl(4S,5S,2R,3R)-5-[(2-fluorophenylthio)methyl]oxolane-3,4-diol] is a partial A(1) adenosine receptor agonist with antilipolytic properties. Aims of the present study were to examine the acu...

Journal: :World journal of emergency medicine 2016
Aslihan Yuruktumen Unal Ali Unal Erkan Goksu Savas Arslan

INTRODUCTION Patients with headache constitute up to 4.5% of emergency department (ED) visits. [1] Cerebral venous thrombosis (CVT) is an important cause of the headache that is more common than once suspected. The diagnosis of CVT is often missed or delayed because of nonspecific clinical manifestations, and brain computerized tomography (CT) may easily be misinterpreted. [2] Herein we report ...

2010
Takeshi Takaki Toru Omata

This paper shows a 99 [g] finger joint that can exert a very strong fingertip force of more than 100 [N]. We have proposed a simple and small load-sensitive continuously variable transmission (CVT), which consists of five links and a torsion-coiled spring. The maximum fingertip force of our previous finger was limited by the mechanical strength of its links and bearings, not by the power of its...

در این تحقیق اثر ترک تنفسی بر پاسخ سیستم روتور-یاتاقان و در دو حالت پاسخ حالت پایدار و همچنین حالت گذرا مورد بررسی قرار گرفته است. نتایج به صورت منحنی های تبدیل فوریه و تبدیل موجک پیوسته نمایش داده شده است. استخراج ماتریس های ضرایب معادله حرکت سیستم، مدل سازی ترک و شبیه سازی رفتار تنفسی ترک پیش از بدست آوردن پاسخ سیستم انجام شده است. در مرحله بعد با استفاده از روش عددی حل معادلات "هوبولت"، پاسخ...

Journal: :international journal of automotive engineering 0
e. maleki pour s. golabi

nowadays, automakers have invested in new technologies in order to improve the efficiency of their products. giant automakers have taken an important step toward achieving this objective by designing continuously variable transmission systems (cvt) to continuously adapt the power of the engine with the external load according to the optimum efficiency curve of engine and reducing fuel consumpti...

Journal: :Energies 2021

For an electric vehicle (EV) with a continuously variable transmission (CVT), novel convex programming (CP)-based co-design method is proposed to minimize the total-cost-of-ownership (TCO). The integration of machine (EM) and CVT primary focus. optimized system reduces TCO by around 5.9% compared non-optimized CVT-based EV (based on off-the-shelf components) 2% equipped single-speed (SST). By t...

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