نتایج جستجو برای: fe loading

تعداد نتایج: 153875  

2014
Corinne Reid Henak Gerard A. Ateshian Jeffrey A. Weiss

Introduction: Osteoarthritis (OA) may be initiated by abnormal mechanical loading, which can alter both cartilage metabolism and mechanical behavior [1]. OA of the hip affects approximately 10% of the population [2]. Understanding the causes of hip OA is the first step in developing treatment strategies to delay or reverse disease progression. Surface fibrillation is common in early-stage OA, a...

2017
Yamei Liu Kai Ma Tifeng Jiao Ruirui Xing Guizhi Shen Xuehai Yan

Nanoengineering of hydrophobic photosensitizers (PSs) is a promising approach for improved tumor delivery and enhanced photodynamic therapy (PDT) efficiency. A variety of delivery carriers have been developed for tumor delivery of PSs through the enhanced permeation and retention (EPR) effect. However, a high-performance PS delivery system with minimum use of carrier materials with excellent bi...

Journal: :Journal of applied physiology 2011
Michal Stern-Perry Amit Gefen Nogah Shabshin Yoram Epstein

The objective of this study was to develop a finite-element (FE) modeling methodology for studying the etiology of a stress fracture (SF). Several variants of three-dimensional FE models of a rat hindlimb, which differed in length or stiffness of tissues, enabling the analyses of mechanical strains and stress in the tibia, were created. We compared the occurrence of SFs in an animal model to va...

2015
Themistoklis D. Kefalas Antonios G. Kladas

Three dimensional (3D), finite element (FE) models and original lumped-parameter networks are developed for the transient thermal analysis of a permanent magnet synchronous motor (PMSM) and an induction motor (IM) specifically designed and optimized for a demanding aerospace actuation application. A systematic comparison between the two different thermal modeling approaches is carried out using...

Journal: :International journal of pharmaceutics 2013
M Gulrez Zariwala Naba Elsaid Timothy L Jackson Francisco Corral López Sebastien Farnaud Satyanarayana Somavarapu Derek Renshaw

Iron (Fe) loaded solid lipid nanoparticles (SLN's) were formulated using stearic acid and iron absorption was evaluated in vitro using the cell line Caco-2 with intracellular ferritin formation as a marker of iron absorption. Iron loading was optimised at 1% Fe (w/w) lipid since an inverse relation was observed between initial iron concentration and SLN iron incorporation efficiency. Chitosan (...

2012
Xile Hu

Molybdenum sulfide materials have been shown as promising non-precious catalysts for hydrogen evolution. This paper describes the study of the promotional effects of certain transition metal ions on the activity of amorphous MoS3 films. Ternary metal sulfide films, M–MoS3 (M 1⁄4Mn, Fe, Co, Ni, Cu, Zn), have been prepared by cyclic voltammetry of aqueous solutions containing MCl2 and (NH4)2[MoS4...

2016
Du Zhou Xi Yuan Haoxiang Gao Ailing Wang Jun Liu Omer El Fakir Denis J. Politis Liliang Wang Jianguo Lin

The use of Finite Element (FE) simulation software to adequately predict the outcome of sheet metal forming processes is crucial to enhancing the efficiency and lowering the development time of such processes, whilst reducing costs involved in trial-and-error prototyping. Recent focus on the substitution of steel components with aluminum alloy alternatives in the automotive and aerospace sector...

2009
Mariusz Ziejewski Ghodrat Karami William W. Orrison Eric H. Hanson

In this paper, a three-dimensional (3-D) nonlinear finite element (FE) method is used in association with the Articulated Total Body (ATB) biodynamics method, to study the human brain response under dynamic loading. The FE formulation includes the detailed model of the skull, brain, cerebral-spinal fluid (CSF), dura mater, pia mater, falx and tentorium membranes. The brain is modeled as viscoel...

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