نتایج جستجو برای: amplitude

تعداد نتایج: 94176  

M. LOGHAVI SH. MOHSENI

The aim of this study was to determine the most suitable shaking frequency and amplitude for shake harvesting lime fruit (C. aurantifolia). A tractor mounted limb shaker with adjustable shaking frequency and amplitude, powered by the tractor power-take-off shaft was designed and developed for this study. The rotating input power was transmitted to the shaker flywheel through a multiple sheave v...

ولدبیگی, ایوب, حمیدی نهرانی, مرتضی, حیدری, عطاء, عمادی, مریم,

Background and purpose: Stimulus–evoked otoacoustic emission (OAE) is generated by the outer hair cells (OHCs) and high levels of noise will highly damage these cells. Therefore, even a mild loss in OHCs could alter the generation of OAE. The aim of this study was to assess and compare the pure tone threshold, Distortion Product Otoacoustic Emission (DPOAE) amplitude in industrial workers exper...

Background: Since tumors located in thorax region of body mainly move due to respiration, in the modern radiotherapy, there have been many attempts such as; external markers, strain gage and spirometer represent for monitoring patients’ breathing signal. With the advent of fluoroscopy technique, indirect methods were proposed as an alternative approach to extract patients’ breathing signals...

Surface quality including surface roughness and edge chipping is a key process measure in micro ultrasonic machining (Micro-USM) as an efficient process for micromachining of hard and brittle materials. Process parameters such as ultrasonic vibration amplitude, static load, type of tool material, type and size of abrasive particles and slurry concentration can influence the surface quality. How...

ژورنال: مهندسی دریا 2007
راشد, غلامرضا, قاجار, رحمت الله, هاشمی, سید جلال الدین,

During the offshore drilling operations by drillships or semisubmersible vessels the drillstring in its first drilljoint to the Kelly suffers bending due to float vessel roll or pitch. The cyclic bending stress at any point along the drillstring, is a function of the roll or pitch angle, Kelly position in bushing, and hookload. The cumulative fatigue damage of the drillpipe due to cyclic stress...

باسم غیور, ,

Gravitational waves are considered in thermal vacuum state. The amplitude and spectral energy density of gravitational waves are found enhanced in thermal vacuum state compared to its zero temperature counterpart. Therefore, the allowed amount of enhancement depends on the upper bound of WMAP-5 and WMAP-7 for the amplitude and spectral energy density of gravitational waves. The enhancement of ...

Firouz Ghaderi Pakdel, Mina Mokhtari hashtjin Samad Zare, Soomaayeh Heysieat-talab

Objective(s) Bupropion is an atypical antidepressant that is widely used in smoke cessation under FDA approval. The study of synaptic effects of bupropion can help to finding out its mechanism(s) for stopping nicotine dependence. In this study the effects of perinatal bupropion on the population spike (PS) amplitude of neonates were investigated. Materials and Methods Hippocampal slices were...

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2020

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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