نتایج جستجو برای: taper constant

تعداد نتایج: 221061  

2011
Arun Kumar Gupta Pooja Singhal

A simple model presented here is to study the thermal effect on vibration of non-homogeneous orthotropic visco-elastic rectangular plate of parabolically varying thickness having clamped boundary conditions on all the four edges. For non-homogeneity of the plate material, density is assumed to vary linearly in one direction. Using the separation of variables method, the governing differential e...

Hover performance of a twin-rotor test model in terms of rotor overlap sweep, blade collective pitch, and blade tip speedwasexaminedexperimentally.The experimental setup consisted of two three-bladed rotors (tandem rotor configuration) with a diameter of1,220 mm and constant chord of 38 mm, giving a blade aspect ratio of 16.05. The blades were of a rectangular planform with NACA 0012 cross-sect...

Journal: :Journal of sports sciences 2008
Luc Thomas Iñigo Mujika Thierry Busso

The aim of this study was to assess responses to taper in elite athletes using computer simulations. Parameters of a non-linear model were derived from training and performance data over two seasons for eight elite swimmers. The fit between modelled and actual performances was statistically significant for each swimmer (r(2) = 0.56 +/- 0.06; P < 0.01). The simulations were used to estimate char...

Journal: :Medicine and science in sports and exercise 2006
Joel D Trinity Matthew D Pahnke Edwin C Reese Edward F Coyle

INTRODUCTION Insight regarding the fluctuations in neuromuscular function among athletes during a taper is lacking. PURPOSE This study examined the time course of changes in maximal mechanical power (Pmax), torque at power maximum (T), velocity at power maximum (V), and swim performance (m x s(-1)) that occur during the taper. METHODS Using an arm ergometer with inertial loading, measuremen...

Journal: :Optics express 2015
Chalongrat Daengngam Ishac Kandas Islam Ashry Anbo Wang James R Heflin Yong Xu

We develop and characterize a UV ablation technique that can be used to pattern soft materials such as polymers and nonlinear molecules self-assembled over silica microstructures. Using this method, we fabricate a spatially periodic coating of nonlinear film over a thin silica fiber taper for second harmonic generation (SHG). Experimentally, we find that the second harmonic signal produced by t...

Journal: :journal of dentistry, tehran university of medical sciences 0
f. gerami-panah s. mir m. rezaee l. sedighpour f. fahimi h. ghodrati

statement of problem: mechanical failure of ceramic materials is controlled by brittle fracture, mostly occurred in tension. in 3-unit all-ceramic fpds the connector area is considered to be at fracture risk because of tensile stress concentrations. purpose: the aim of this fe analysis was to evaluate the effect of taper on stress distribution in all-ceramic fpds. materials and methods: in this...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1992
R E Burke W B Marks B Ulfhake

Most quantitative descriptions of neuronal dendrite morphology involve tabulations of measurements and correlations among them. The present work is an attempt to extract from such data a parsimonious set of parameters that are sufficient to describe the quantitative features of individual and pooled dendrites, including their statistical variability. A relatively simple stochastic (Monte Carlo)...

Journal: :The Journal of arthroplasty 2014
Christina M Arnholt Daniel W MacDonald Mariya Tohfafarosh Jeremy L Gilbert Clare M Rimnac Steven M Kurtz Gregg Klein Michael A Mont Javad Parvizi Harold E Cates Gwo-Chin Lee Arthur Malkani Mattheuw Kraay

The purpose of this study was to characterize the prevalence of taper damage in modular TKA components. One hundred ninety-eight modular components were revised after 3.9±4.2 years of implantation. Modular components were evaluated for fretting corrosion using a semi-quantitative 4-point scoring system. Design features and patient information were assessed as predictors of fretting corrosion da...

2016
Matheus Henrique Nunes Eric Bastos Görgens

Tree stem form in native tropical forests is very irregular, posing a challenge to establishing taper equations that can accurately predict the diameter at any height along the stem and subsequently merchantable volume. Artificial intelligence approaches can be useful techniques in minimizing estimation errors within complex variations of vegetation. We evaluated the performance of Random Fores...

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