نتایج جستجو برای: pulse effect

تعداد نتایج: 1718619  

E Aflaki M Soveid

  intravenous glucocorucoid pulse therapy is a common treatment for immunologically origin diseases but it can not be considered a completely bening treatment.the effects of long term administration of glucocorticoids on calcium and phosphorus metabolism are week known ,but is less in known about the effect of pluse therapy.the purpose of this study was to investigate the effect of methylpredn...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

we have two part in this thesis, at first: the interaction of native calf thymus dna (ct-dna) with two anthraquinones including quinizarin (1,4- dihydroxy anthraquinone) and danthron (1,8- dihydroxy anthraquinone) in a mixture of 0.04 m brittone-robinson buffer and 50% of ethanol were studied at physiological ph by uv-vis absorption, florescence, circular dichroism spectroscopic methods, viscos...

Journal: :physiology and pharmacology 0
mohammad mohammad-zadeh department of physiology, school of medical sciences, tarbiat modares university, tehran, iran javad mirnajafi-zadeh department of physiology, school of medical sciences, tarbiat modares university, tehran, iran yaghoub fathollahi department of physiology, school of medical sciences, tarbiat modares university, tehran, iran mohammad javan department of physiology, school of medical sciences, tarbiat modares university, tehran, iran parviz ghorbani department of physiology, school of medical sciences, tarbiat modares university, tehran, iran

introduction: previous studies have been shown that low frequency stimulation (lfs) has an inhibitory effect on kindling acquisition. however, the mechanism of this effect has not been completely determined. in the present study, the effect of lfs of the perforant path on seizures induced by rapid perforant path kindling was investigated. methods: animals were kindled by electrical stimulation ...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
محمدرضا شبگرد هادی عیوضی باقری روح اله رحمانی

in this study the effect of input parameters of the edm process (pulse on-time, duty cycle and tool polarity), on the material removal rate (mrr), tool wear ratio (twr) and maximum surface roughness (rmax) in the machining aisi h13 tool steel has been studied. this study shows that increasing the duty cycle in the two conditions of tool polarity, material removal rate and the maximum surface ro...

The main objective of this paper is to present a wavelet-based procedure to characterize principle features of a special class of motions called pulse-like ground motions. Initially, continues wavelet transform (CWT) which has been known as a powerful technique both in earthquake engineering and seismology field is applied easily in automated detecting of strong pulse of earthquakes. In this pr...

ایرانی, شلیر , حبیبی, مهدی , حکیمی پژوه, حسین,

 We have considered the self-focusing of a Gaussian laser pulse in unmagnetized plasma. High-intensity electromagnetic fields cause the variation of electron density in plasma. These changes in the special conditions cause the acceleration of electrons to the higher energy and velocities. Thus the equation of plasma density evolution was obtained considering the electrons ponderomotive force. T...

A. Nasr-Esfahany and M.Heydarzadeh Sohi,

Zinc-Nickel electrodeposits have been widely adopted for surface treatment of automobile steel sheet for high corrosion resistance. In this work the effect of pulse parameters on the Zn-Ni alloy electrodeposits was investigated. The hardness, thickness, corrosion resistance and composition of deposits thus produced were investigated. The surface topography of the deposits was also observed in S...

A. Afrasiabifar , M. Zoladl , R. Rezaeikia , Sh. Najafi Doulatabad ,

Aims: The present study was conducted with the aim of determining the effect of passive movements on hemodynamic parameters, including systolic blood pressure, diastolic blood pressure, mean arterial pressure, pulse, and pulse pressure of patients under ventilation. Materials & Method: In this controlled clinical trial, 64 patients under ventilation in Kohgiluyeh and Boyer-Ahmad University of ...

Journal: :Journal of Experimental and Theoretical Physics 2003

Journal: :international journal of advanced design and manufacturing technology 0
mohammad tahmasebipour faculty of new sciences & technologies, university of tehran, tehran, iran *corresponding author y. tahmasebipour micro/nano-manufacturing technologies development laboratory, faculty of new sciences & technologies, university of tehran, iran a. shabani micro/nano-manufacturing technologies development laboratory, faculty of new sciences & technologies, university of tehran, iran m. boujari aliabadi faculty of new sciences & technologies, university of tehran, tehran, iran

the micro wire electrical discharge machining (micro wire-edm) process is a modern machining process with various applications in manufacturing micro-parts. the recast layer remaining on the machined surfaces is an inevitable complication of this process. this layer can subsequently affect the machined parts performance. to optimize the recast layer in the micro wire-edm of the molybdenum micro...

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