نتایج جستجو برای: bearing

تعداد نتایج: 75089  

2012

Recently developed techniques in the measurement of fluid film bearing dynamic behaviour, including stiffness and damping, have highlighted some interesting observations on the performance of a range of bearings. These are outlined together with suggested strands of further research aimed at improving the efficiency, reliability and cost of operating plant and equipment.

2017
Soroush Kamrava Davood Mousanezhad Hamid Ebrahimi Ranajay Ghosh Ashkan Vaziri

We present a novel cellular metamaterial constructed from Origami building blocks based on Miura-ori fold. The proposed cellular metamaterial exhibits unusual properties some of which stemming from the inherent properties of its Origami building blocks, and others manifesting due to its unique geometrical construction and architecture. These properties include foldability with two fully-folded ...

Journal: :Orthopedics 2004
Thomas H Mallory

Journal: :Palgrave studies in the history of social movements 2021

This open access book is the biography of one Britain’s foremost animal welfare campaigners and world activism, science, politics she inhabited. In 1964, Ruth Harrison’s bestseller Animal Machines triggered a gear change in modern protection by popularising term ‘factory farming’ alongside new way thinking about welfare. Here, historian Claas Kirchhelle explores avant-garde upbringing, Quakeris...

Elkhan A. Mamedov

This article lists a number of geological data on the conditions of formation of some major gold deposits in the conglomerates of the Earth's crust. We analyze the metallogenic, tectonic, stratigraphic and other factors controlling the formation of gold-bearing conglomerates in certain fields, such as the Witwatersrand (S. Africa) and Darwaz (Tajikistan). The following tectonic factors play the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی مکانیک 1386

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Journal: :journal of modern rehabilitation 0
seyedehzahra anousheh msc, department of orthotics & prosthetic, school of rehabilitation sciences, iran university of medical sciences, tehran, iran. behnam hajiaghaei lecturer, department of orthotics & prosthetic, school of rehabilitation sciences, iran university of medical sciences, tehran, iran. hassan saeedi assistant professor, department of orthotics & prosthetic, school of rehabilitation sciences, iran university of medical sciences, tehran, iran. hossein gholizadeh postdoctoral fellow, department of rehabilitation, ottawa hospital research institute, university of ottawa, ottawa, canada.

introduction: transtibial amputation is the most common amputation in lower limbs. volume loss of residual limb occurs during daily use of prostheses, which results in pistoning between residual limb and prosthetic socket. the goal of this study was to design and fabricate a pneumatic suspension system in transtibial supracondylar prostheses and to evaluate its effect on residual limb pistoning...

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