نتایج جستجو برای: low speed impact loading

تعداد نتایج: 2108930  

2011
Prabin R. Sahoo Chetan Phalak

Data loading into RDBMS is a common phenomenon over decades. Over the years RDBMS has dominated in the enterprise world. Conventional file systems are seen to be replaced with popular RDBMS such as Oracle ®, UDB ®, and Sybase ® etc. This has necessitated the need for data loading while migrating from file systems to RDBMS. In some cases data loading is an everyday activity, for example, datawar...

2017
Joshua T Weinhandl Bobbie S Irmischer Zachary A Sievert

Alterations in hip joint loading have been associated with diseases such as arthritis and osteoporosis. Understanding the relationship between gait speed and hip joint loading in healthy hips may illuminate changes in gait mechanics as walking speed deviates from preferred. The purpose of this study was to quantify hip joint loading during the gait cycle and identify differences with varying sp...

Journal: :مکانیک هوافضا 0
داریوش کوه بر darioush koohbor koohbor عیسی احمدی isa ahmadi دانشگاه زنجان، دانشکده مهندسی مکانیک توحید پاکمنش tohid pakmanesh دانشگاه زنجان، دانشکده مهندسی مکانیک

in this paper, the propagation of the waves in the laminated composite plates which is subjected to low velocity impact is investigated using the finite element method. a rigid metallic projectile with spherical nose is considered and the impact of this projectile with laminated composite is studied in this study. considering a finite element model the governing equations of the problem is disc...

Journal: :Investigative ophthalmology & visual science 1996
J S Mansfield G E Legge M C Bane

PURPOSE Little is known about the effect of font on low-vision reading. In this study, the authors measured the influence of font in reading with normal and low vision. METHODS Reading acuity, maximum reading speed, and critical print size (the smallest print that can be read with maximum speed) were measured in 50 normal subjects and 42 subjects with low vision. Data were collected using ver...

Seyyed Ahmad Mirsharifi

At the moment, Moshanir loading code which has been provided by Tavanir Company in 1998 is used for loading transmission line towers. Also ASCE52 are applied for designing these structures. In the above Moshanir loading code, loading parameters such as, maximum yearly ice thickness, maximum monthly ice thickness, maximum yearly wind speed and maximum monthly wind speed have been considered as ...

Intelligent knowledge based system (IKBS) is developed for optimizing dry CNC turning process using Taguchi method, CNC Machine, EN19 steel as the work piece material, andCutting Insert. Tool wear and spindle loading which are the machining parameters, spindle speed, feed rate, and depth of cut, areoptimized through the intelligent knowledge based system (IKBS). The experimental CNC turning mac...

2005
J. Varghese A. Dasgupta

This paper is part of an ongoing effort to develop a test methodology to examine the durability of surface mount interconnects under impact loading conditions. Literature indicates that as the drop height is increased, there is a transition in the failure site from the ductile solder to the brittle intermetallic or the copper traces. Not much work has been done to understand this phenomenon. Th...

Journal: :Clinical biomechanics 2012
Nicholas P Fey Richard R Neptune

BACKGROUND Unilateral below-knee amputees often develop comorbidities that include knee joint disorders (e.g., intact leg knee osteoarthritis), with the mechanisms leading to these comorbidities being poorly understood. Mechanical knee loading of non-amputees has been associated with joint disorders and shown to be influenced by walking speed. However, the relationships between amputee knee loa...

2006
G. Lykotrafitis G. Ravichandran

A laser interferometry-based technique was developed to locally measure the in-plane components of particle velocity in dynamic experiments. This technique was applied in the experimental investigation of dynamic sliding along the incoherent (frictional) interface of a Homalite–steel bimaterial structure. The bimaterial specimen was subjected to uniform compressive stress and impact-induced she...

Journal: :Muscles, ligaments and tendons journal 2015
Olof Helge Sandberg Ida Dånmark Pernilla Eliasson Per Aspenberg

BACKGROUND we investigated how ruptured Achilles tendons are loaded in a brace. There is an ongoing discussion whether patients should be recommended to bear weight on the injured limb. However, little is known about the effects of bracing on tensional loading of the healing Achilles tendon: it is uncertain if load-bearing actually stresses the Achilles tendon inside a brace. METHODS we measu...

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