搜索结果: 31-45 共查到“Surface roughness”相关记录60条 . 查询时间(0.131 秒)
Surface Roughness of CoCr and ZrO2 Femoral Heads with Metal Transfer: A Retrieval and Wear Simulator Study
Surface Roughness CoCr ZrO2 Femoral Heads Metal Transfer Wear Simulator
2009/9/2
Metal transfer to femoral heads may result from impingement against the metallic acetabular shell following subluxation/dislocation, or when metallic debris enters the articulation zone. Such transfer...
农田土壤表层粗糙度信息解析（Soil Surface Roughness Indices,Interpretation and Application）
土壤 粗糙度 耕作 时空变异 信息解析
2010/4/1
耕作后农田土壤地貌属于具有趋向性的随机表面。由随机过程角度看，它随时间的变异满足各态遍历性质。揭示它的时空变异特征对于客观评价农田耕作质量、探讨表层土壤水运移规律、优化农田管理具有较高的实用价值。因此，基于各种粗糙指数的信息解析是精细农业技术体系研究热点之一。本文从不同尺度数学模型、时空变异多因素分析、直接与潜在应用价值等方面作了系统性分析。 The surface elevation of a ...
The Experiment and Numerical Calculation of Propeller Performance with Surface Roughness Effects
Propeller Performance Surface Roughness Boundary Layer
2009/5/18
As well known, propeller and hull of ship are fouled and their surface are roughened due to various causes such as adhesion of sea-lives, painting degradation, cavitation erosion etc. The surface roug...
A Study of On-Board Monitoring and Analysis System of Ship Propulsion Performance-An Estimation Method of Propeller Performance with Surface Roughness Effects
Propeller Performance Surface Roughness Ship Propulsion Performance Monitoring
2009/5/12
The propulsion performance of actual ship at sea tends to deteriorate mainly due to the fouling of hull and propeller. It is important, therefore, to monitor the present situation of ship propulsion p...
On the derivation of soil surface roughness from multi parametric PolSAR data and its potential for hydrological modeling
soil surface roughness PolSAR data hydrological modeling
2009/4/28
The potential of multi parametric polarimetric SAR (PolSAR) data for soil surface roughness estimation is investigated and its potential for hydrological modeling is evaluated. The study utilizes mic...
Surface Roughness of Orthodontic Archwires
LASER SPECTROSCOPY SPECULAR REFLECTANCE SURFACE ROUGHNESS WIRE
2009/2/17
Using specular reflectance, the surface roughness of six representative orthodontic archwire products was determined. Among the four alloy groups which are commonly used in orthodontics, stainless...
The Effect of Planning and Sanding on Surface Roughness of Massive Wood
Planning and Sanding Surface Roughness of Massive Wood
2009/1/16
In this study the effects of wood species cutting direction, number of blades, sander grade and feed rate on the surface roughness of planned and sanded massive wood have been investigated. Choses wo...
The Effect of the Number of Blades and the Grain Size of Abrasives in Planing and Sanding on the Surface Roughness of European Black Pine and Lombardy Poplar
Surface roughness Wood sanding Wood planing European black pine Lombardy poplar
2009/1/12
The effect of the number of blades and the abrasive grain size of sandpaper on the surface roughness in wood materials obtained from Lombardy poplar (Populus nigra L.) and European black pine (Pinus n...
Fiber-optic sensor to estimate surface roughness of corroded metals
fiber optic sensor scattering principle
2011/5/6
A fiber optic sensor system is developed to probe the surface texture of corroded metals. The present work is based on the principle of scattering of light by objects. A light beam from an LED source ...
Measurement of surface roughness and flank wear on hard martensitic stainless steel by CBN and PCBN cutting tools
Crater wear Flank wear Notch wear
2010/1/19
Purpose: The experiments with different operating parameters using CBN and PCBN tools on hard AISI 440 C
material were investigated in this paper.
Design/methodology/approach: In this research AISI ...
Effect of surface roughness on friction in cold forging
Tip test Friction measurement Surface roughness
2010/1/19
Purpose: Tip test has been developed to characterize the friction during cold forging process based on a linear
relationship between the maximum load and radial tip distance measured. In this previou...
Optimization of Surface Roughness in End Milling on Mould Aluminium Alloys (AA6061-T6) Using Response Surface Method and Radian Basis Function Network
Response Surface Method Radian Basis Function Network Surface roughness
2010/1/15
This paper is concerned with optimization of the surface roughness when milling Mould Aluminium alloys (AA6061-T6) with carbide coated inserts. Optimization of milling is very useful to reduce cost an...
Porcelain Surface Roughness, Color and Gloss Changes after Orthodontic Bonding
Porcelain Debonding Low-fusing High-fusing Surface Gloss
2008/11/17
The purpose of this study was to evaluate the alteration in surface characteristics after orthodontic debonding of two types of porcelain systems commonly used in prosthetic dentistry. For this purp...
Inferring soil surface roughness from soil bidirectionalreflectance data
soil bidirectional reflectance visible tid near infrared soil surface roughness invertion model
2008/11/14
This work is an attempt to assess the :curacy of soil surface roughness estimations based on analysis by inverse model of bidirectional soil reflectance data.
In the research on the friction of vegetative grain-structure, an essential problem lies in the appropriate determination of the condition of the surface layer of elements in mutual contact. The anal...