نتایج جستجو برای: improved reduction system

تعداد نتایج: 2967050  

Journal: :amirkabir international journal of electrical & electronics engineering 2015
m. ehsanipour j.s. moghani s.h. hosseinian m. saberi

in this paper, the impacts of installing superconducting fault current limiter (sfcl)in radial and loop power distribution system are evaluated to improve voltage sag in both cases of with and without distributed generations (dg). among various sfcls, the hybrid type with a superconducting element in parallel with a current limiting reactor (clr) is selected. this is more effective than resisto...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی 1391

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

2017
Mona Shokair Hifzalla Sakran

S. Olyaee, Sh. Mohammad-Nejad,

A new heterodyne nano-displacement with error reduction is presented. The main errors affecting the displacement accuracy of the nano-displacement measurement system including intermodulation distortion error, cross-talk error, cross-polarization error and phase detection error are calculated. In the designed system, a He-Ne laser having three-longitudinal-mode is considered as the stabiliz...

2012
M. M. GUPTA RAY BRIJESH

All drug delivery systems, oral drug delivery remain the most preferred option for administration for various drugs. Sustained Release is also providing promising way to decrease the side effect of drug by preventing the fluctuation of the therapeutic concentration of the drug in the body. The basic rationale of sustained drug delivery system optimizes of the biopharmaceutical, pharmacokinetic ...

Amir Masood Eftekhari Moghadam Seyed Amir Ehsani

Artificial Immune Systems (AIS) can be defined as soft computing systems inspired by immune system of vertebrates. Immune system is an adaptive pattern recognition system. AIS have been used in pattern recognition, machine learning, optimization and clustering. Feature reduction refers to the problem of selecting those input features that are most predictive of a given outcome; a problem encoun...

Journal: :JSW 2013
Gaochao Xu Yushuang Dong Xiaodong Fu Yan Ding Jia Zhao Xinzhong Liu

As a testing strategy to evaluate the completeness of test cases, mutation testing has been identified as a "faultoriented" technique for unit testing, which is mainly used to generate complete test cases. The path-oriented technique of test data generation is a highly efficient technique which implements test data generation by building and solving constraint systems. Most of path-oriented gen...

Alireza Kamali Asl, Hossein Arabi Seyed Mahmood Reza Aghamiri

Introduction: Variable resolution x-ray (VRX) CT is a new type of CT that can image objects at various spatial resolutions. In a VRX CT scanner, the spatial resolution increases at the cost of reduction in the field of view (FOV). An important factor that limits the spatial resolution of the VRX CT is the effect of focal spot size. Also, the optimum magnification is different at each incident a...

Increasing the demand for electric vehicles, makes the manufactures to concentrate on the research of new energy storage devices, electro motors, and power electronic devices. The main subject in designing an electric motorcycle with four-phase AFPM and its full wave converter is to select suitable energy storage system and add on turbo-acceleration mechanism. Choosing the suitable energy stora...

Journal: :international journal of environmental research 2014
s. jilani m.a. khan

in pakistan besides pesticide contamination from agricultural field, the manufacturing industriesare also contributing relatively high quantities of toxic pesticides into the environment. these pesticides maybe toxic, mutagenic or carginogenic and may be bioaccumulated or biomagnified by the biota. because ofpersistent nature of pesticides, its removal from environmental system become difficult...

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