نتایج جستجو برای: loading

تعداد نتایج: 76595  

Finite element analysis of a tubular T-joint subjected to various loading conditions including pure axial loading, pure in-plane bending (IPB) and different ratios of axial loading to in-plane bending loading has been carried out. This effort has been established to estimate magnitudes of the peak hot spot stresses (HSS) at the brace/chord intersection and to find the corresponding locations as...

Journal: :Journal of biomechanics 2016
Aboulfazl Shirazi-Adl Hendrik Schmidt Idsart Kingma

s 8 Session 1: Intervertebral Discs 9 Session 2: Spinal Motion Segment: Load Sharing and Failure 16 Session 3: Spinal Loads: In vivo Measurements 20 Session 4: Spinal Biomechanics: Loading-Deformation 25 Session 5: Spinal Posture: Deformation 29 Session 6: Spinal Stability: Perturbations 34 Session 7: Spine Biomechanics: Computational Models 39 Session 8: Spine Biomechanics: Implants 44 Index o...

عطایی, ابراهیم, خدائیان, نیلوفر , ریسمانچیان, منصور,

Introduction: The concept of treating edentulous patients by osseointegrated implants was first proposed in 1960s. To minimize the failure rate of implants, it has been recommended to keep the implants free of load during the healing period .Recent studies have been directed to achieve faster integration and shorter healing periods prior to implant restoration. Loading protocols (immediate load...

Experimental investigation of the ultimate resistance of slender, steel-plate girder web panels to combined shear-and-patch loading indicates significant interaction between shear loading and patch loading. However, an existing interaction formula is based on experimental results. Herein, an improved design procedure for slender plate girders subjected to combined shear and patch loading is pro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی هوافضا 1385

در این پایان نامه توضیح کلی در مورد سیستم بار کنترلی”control loading” و تاریخچه مربوط به علم کنترل و شبیه سازهای پروازی ”simulator” ارائه شده است، با ارائه بلوک دیاگرام مربوط به سیستم بار کنترلی تک تک اجزاء سیستم بار کنترلی، به طور جداگانه مورد بررسی قرار گرفته است. و در ادامه به طراحی و ساخت مدار هیدرولیکی سیستم بار کنترلی پرداخته شده است، سپس معادلات حاکم بر حرکت هواپیما و نیروهای وارد بر دست...

Journal: :cell journal 0

introduction: endothelial cells are subjected to mechanical forces caused by pulsatile flow and pressure leading to hemodynamic shear stress and circumferential stress on endothelial layer. the study aimed at a quantitative evaluation of endothelial cell morphology by application of cyclic loading. endothelial cells respond to applied loads with adaptation and remodeling. such mechanisms are ma...

are compared with the experimental results. In these test results the shape memory alloys behavior as: super elasticity under various temperatures, loading rate effects, asymmetry in tension and pressure, various loops of loading and unloading, hydrostatic pressure effects, different proportional tension-shear biaxial loading and unloading, and also deviation from normality due to non-proportio...

Journal: :Blood 2009
Leila J Noetzli Jhansi Papudesi Thomas D Coates John C Wood

Diabetes mellitus and cardiomyopathy are common in chronically transfused thalassemia major patients, occurring in the second and third decades of life. We postulated that pancreatic iron deposition would precede cardiac iron loading, representing an environment favorable for extrahepatic iron deposition. To test this hypothesis, we examined pancreatic and cardiac iron in 131 thalassemia major ...

In this paper, the dynamic behavior of square plates with various thicknesses and stiffening configurations subjected to underwater explosion (UNDEX) are evaluated through a relatively novel approach which is called Incremental Explosive Analysis (IEA). The IEA estimates the different limit-states and deterministic assessment of plats’ behavior, considering uncertainty of loading conditions and...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
asghar tofighi saber saedmocheshi

background: supplementation usage approach and its effect on fatigue retarding had been focused on by athletes and coaches. the aim of this study was to compare the effect of two acute and chronic loading of sodium bicarbonate supplement on lactate and inflammatory indices after exhaustive aerobic activity in active men. method s : 10 active men were selected and assigned to experimental group....

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