نتایج جستجو برای: low frequency oscillation

تعداد نتایج: 1613744  

Journal: :the modares journal of electrical engineering 2008
a. r. sadoughi m. m. ebrahimi a ebrahimi2

different methods for detecting broken bars in induction motors can be found in literature. many of these methods are based on evaluating special frequency magnitudes in machine signals spectrums. current, power, flux, etc are among these signals. frequencies related to broken rotor fault depend on slip. in industrial environment due to some phenomena - such as load oscillation, other faults an...

Journal: :Proceedings of the Imperial Academy 1927

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1393

the purpose of the present study was to investigate the relationship between fear of negative evaluation (fne) and communication strategies (css) among iranian efl learners. it was aimed to examine the differences in the use of communication strategies between speakers with high or low degree of fear of negative evaluation. the current study was a case study consisting of 10 english learners at...

Journal: :British Journal of Anaesthesia 2002

2015
Maninder kaur Jasdeep Kaur

The paper describes the design for testability (DFT) of low voltage two stage operational transconductance amplifiers based on oscillation based testing (OBT). The oscillation-test strategy is a low cost and robust test method for mixed-signal integrated circuits. Being a vectorless test method, it allows one to eliminate the analog test vector generator. Circuit under test is transformed to os...

2014
Vivek Saxena Satya Prakash

The power system stabilizer is used to damp out the low frequency oscillations that improve the small signal stability of the power system. If ignored these low frequency oscillations may lead to cascaded failure of the complete power system. This paper presents the comparative study of conventional power system stabilizer (CPSS) with newly proposed Adaptive Fuzzy Logic Controlled Power System ...

Journal: :Thorax 1985
R J George M A Johnson D Pavia J E Agnew S W Clarke D M Geddes

Data on the effect on mucociliary clearance of oral high frequency oscillation is conflicting. By means of a technique to superimpose high frequency oscillation on tidal breathing, changes in mucociliary clearance during high frequency oscillation were studied in seven normal non-smokers by monitoring the clearance of inhaled radiolabelled aerosol from the lungs. After inhalation of 5 microns t...

2012
A. Leelasantitham B. Srisuchinwong

A high-frequency low-power sinusoidal quadrature oscillator is presented through the use of two 2-order low-pass current-mirror (CM)-based filters, a 1-order CM low-pass filter and a CM bilinear transfer function. The technique is relatively simple based on (i) inherent time constants of current mirrors, i.e. the internal capacitances and the transconductance of a diode-connected NMOS, (ii) a s...

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