نتایج جستجو برای: double strength

تعداد نتایج: 443258  

2005
T. Vallée

Experimental and numerical investigations were carried out on adhesively bonded full-scale double lap joints from pultruded GFRP profiles with relatively thick adhesive layers, needed in infrastructure applications to compensate for tolerances. The influence of different geometrical parameters on the joint strength was investigated, namely the thickness of the adhesive layer (from 5 to 35 mm), ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

‏‎applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...

Journal: :American journal of obstetrics and gynecology 2005
Patrick J Culligan Linda Blackwell Miles Murphy Craig Ziegler Michael H Heit

OBJECTIVE The purpose of this study was to determine the effects of extracorporeal magnetic innervation (ExMI) on pelvic muscle strength of primiparous patients. STUDY DESIGN Primigravid patients were randomized to receive either active or sham ExMI postpartum treatments for 8 weeks. The main outcome measure was pelvic muscle strength measured by perineometry at baseline (midtrimester), 6 wee...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2010
Shihong Lin Mark R Wiesner

Exact, closed-form analytical expressions are presented for evaluating the potential energy of electrical double layer (EDL) interactions between a sphere and an infinite flat plate for three different types of interactions: constant potential, constant charge, and an intermediate case as given by the linear superposition approximation (LSA). By taking advantage of the simpler sphere-plate geom...

Journal: :علوم زیستی ورزشی 0
مجید کاشف دانشیار دانشکده تربیت بدنی و علوم ورزشی ،دانشگاه تربیت دبیر شهید رجایی،تهران ،ایران احمد آزاد دانشیار دانشگاه زنجان،زنجان،ایران خلیل اله منیخ کارشناس ارشد،فیزیولوژی ورزش،دانشکده تربیت بدنی و علوم ورزشی،دانشگاه تربیت دبیر شهید رجایی،تهران،ایران

animal studies have reported very useful properties including weight loss and improved body composition for conjugated linoleic acid (cla). however, there is limited information about the combined effect of resistance training and cla supplementation. therefore, the effect of cla supplementation and resistance training on body composition, serum leptin and muscle strength in non-athlete men was...

Journal: :Sustainability 2021

To explore the failure mechanism of rock with holes and fissures, uniaxial compression tests sandstone samples combined double hole fissure defects were carried out using Particle Flow Code 2D (PFC2D) numerical simulation software. The behaviour mechanical properties at different angles analysed, evolution results stress field crack propagation studied. show that a decrease in angle, initiation...

Journal: :physical chemistry research 2015
salimeh kimiagar ali rajabpour fatemeh tavazoee

graphene sheet including single vacancy, double vacancy and stone-wales with armchair and zigzag structure was simulated using molecular dynamics simulation. the effect of defects on shear’s modulus, shear strength and fracture  strain was investigated. results showed that these shear properties reduce when the degrees of all kinds of defects increase. the dangling bond in sv and dv defected gr...

2014
Aaron Ludlow

The components in top-fuel dragster and stock car engines undergo significantly more force than their production passenger vehicle counterparts do. Therefore, they must be manufactured and processed to withstand those forces so that they do not catastrophically fail while in service. In this project, the effects of austempering and adding a cryogenic processing step to the control quench and do...

2009
Clare L. Ardern Kate E. Webster

The hamstring tendons are an increasingly popular graft choice for anterior cruciate ligament reconstruction due to preservation of quadriceps function and the absence of anterior knee pain post-operatively. Two commonly used hamstring grafts are a quadruple strand semitendinosus graft (4ST) and a double strand semitendinosus-double strand gracilis graft (2ST-2G). It has been suggested that con...

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