نتایج جستجو برای: dynamic loads

تعداد نتایج: 442334  

Journal: :Journal of biomechanics 1998
D E Hurwitz D R Sumner T P Andriacchi D A Sugar

This study tested the validity of the prediction of dynamic knee loads based on gait measurements. The relationship between the predicted loads at the knee and the distribution of bone between the medial and lateral sides of the tibia was examined. The motion and external forces and moments at the knee were measured during gait and a statically determinate muscle model was used to predict the c...

2017
Pengfei Liu Qinyan Xing Dawei Wang Markus Oeser

Analyses of dynamic responses are significantly important for the design, maintenance and rehabilitation of asphalt pavement. In order to evaluate the dynamic responses of asphalt pavement under moving loads, a specific computational program, SAFEM, was developed based on a semi-analytical finite element method. This method is three-dimensional and only requires a two-dimensional FE discretizat...

Journal: :CoRR 2018
Alireza Sharifian Raviraj S. Adve

We propose algorithms for cloud radio access networks that not only provide heterogeneous quality of-service (QoS) for rateand, importantly, delay-sensitive applications, but also jointly optimize the frequency reuse pattern. Importantly, unlike related works, we account for random arrivals, through queue awareness and, unlike majority of works focusing on a single frame only, we consider QoS m...

Introduction: Mesenchymal Stem Cells (MSCs) are multipotent cells capable of duplication and auto-recovery and distinction from various cells including chondrocytes, adipocytes, chondroblasts, fibroblasts, and osteoblasts. Human stem cells are always subject to local and external mechanical loads. External loads are caused by physical activity in external environment loading to infliction of st...

Journal: :journal of computational applied mechanics 0
hadi ramin center of excellence in design and optimization of energy systems, school of mechanical engineering, college of engineering, university of tehran, tehran, iran pedram hanafizadeh center of excellence in design and optimization of energy systems, school of mechanical engineering, college of engineering, university of tehran, tehran, iran mohammad ali akhavanbehabadi center of excellence in design and optimization of energy systems, school of mechanical engineering, college of engineering, university of tehran, tehran, iran

in this paper, dynamic transient method and conventional degree-hours method (static) have been compared to estimate heating and cooling loads of building’s wall. all main wall surfaces of various orientations, i.e.south, west, east, north, and horizontal are considered in the climate of tehran, iran. in this study, a conventional wall structure, which is comprisedconcrete as main wall material...

2010
B. DEAN KUMAR

-Tall latticed steel towers are being pursued for the purpose of microwave transmission, T.V. transmission etc. Antennas are fixed at the top of the tower for transmission. The height of the towers may range from 50m to 250m. The structural form consists of latticed steel work, suitable bracing and suitable foundation for the tower legs. Usually bolted connections are provided for the joints. M...

Journal: :The Science of the total environment 2014
M Shore P Jordan P-E Mellander M Kelly-Quinn D P Wall P N C Murphy A R Melland

Using data collected from six basins located across two hydrologically contrasting agricultural catchments, this study investigated whether transport metrics alone provide better estimates of storm phosphorus (P) loss from basins than critical source area (CSA) metrics which combine source factors as well. Concentrations and loads of P in quickflow (QF) were measured at basin outlets during fou...

2013
Verena Schwachmeyer Philipp Damm Alwina Bender Jörn Dymke Friedmar Graichen Georg Bergmann

INTRODUCTION After hip surgery, it is the orthopedist's decision to allow full weight bearing to prevent complications or to prescribe partial weight bearing for bone ingrowth or fracture consolidation. While most loading conditions in the hip joint during activities of daily living are known, it remains unclear how demanding physiotherapeutic exercises are. Recommendations for clinical rehabil...

2016
Anna-Lisa Osvalder

Anna-Lisa Osvalder* and Pavel Neumann *Department of Injury Prevention, Chalmers University of Technology, S-412 96 GÖTEBORG, Sweden Department of Orthopaedic Surgery, Sahlgren Hospital, S-413 45 GÖTEBORG, Sweden The biomechanical responses of 48 lumbar motion segments (consisting of two adjacent vertebrae, the intervertebral disc and all intervening ligaments) exposed to loads similar to those...

2000
Y. Zhao C. Basaran

Recent trends in reliability and fatigue life analysis of electronic devices have involved developing structural integrity models for predicting the operating lifetime under vibratory and thermal environmental exposure. Solder joint reliability is the most critical issue for the structural integrity of surface mounted electronics. Extensive research has been done on thermal behavior of solder j...

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