Results 91 to 100 of about 9,909,772 (235)

Apparatus for measuring semiconductor device resistance [PDF]

open access: yes, 1980
A test structure is described for enabling the accurate measurement of the resistance characteristics of a semiconductor material and includes one or more pairs of electrical terminals disposed on the surface of the material to enable measurements of the
Matzen, W. J.
core   +1 more source

Elastic-plastic Contact of a Deformable Sphere Against a Rigid Flat for Varying Material Properties Under Full Stick Contact Condition [PDF]

open access: yesTribology in Industry, 2011
The present study considers finite element based contact analysis of an elastic-plastic axisymmetric hemisphere using ANSYS to study the effect of material properties under full stick contact condition.
B. Chatterjee, P. Sahoo
doaj  

PROFILE MODIFICATION INFLUENCE ON THE CONTACT RATIO FOR STRAIGHT BEVEL GEAR

open access: yesJournal of Industrial Design and Engineering Graphics, 2007
Bevel gear, as octoidal gear, is not accurate involute. As a result, unlike involute cylindrical gear, bevel gear is accomplished by using profile which are not modification or profile with zero modification.
VELICU Doru, MOLDOVEAN Gheorghe
doaj  

Numerical experiments on scale effects of contact characteristics of rock joints

open access: yesYantu gongcheng xuebao
To investigate the scale effects of contact characteristics in rock joints, a series of numerical models for joint sets with different sizes are generated using the self-affine fractal enlargement method.
GONG Geng 1, LI Shenglian 2, ZHANG Guohua 1, 3, XIONG Feng 1, TANG Zhicheng 1
doaj   +1 more source

Contact Ratio of Noncircular Gears.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1995
Akira Arakawa, Takashi Emura
openaire   +2 more sources

Friction and wear with a single-crystal abrasive grit of silicon carbide in contact with iron base binary alloys in oil: Effects of alloying element and its content [PDF]

open access: yes
Sliding friction experiments were conducted with various iron-base binary alloys (alloying elements were Ti, Cr, Mn, Ni, Rh, and W) in contact with a rider of 0.025-millimeter-radius, single-crystal silicon carbide in mineral oil.
Buckley, D. H., Miyoshi, K.
core   +1 more source

Study on the Influence of Real Contact Ratio on Gear Meshing Stiffness and Dynamic Response

open access: yesJixie chuandong, 2018
In order to research the influence of real contact ratio on meshing stiffness and gear dynamic response,the gear meshing assembly model is constructed via the 3 D modeling software SolidWorks,and the model is put into the transient module of FEA software
He Yumin, Hao Anbang
doaj  

齿轮副端面重合度统一定义及其计算式

open access: yesJixie chuandong, 2005
Common definition and calculation formula of transerse contact ratio for all types of gears are put forward.The calculation formulae for involute gear,micro-segments profile gear,and sine-curved profile gear are discussed.The transerse contact ratio of ...
谭伟明
doaj  

Non-Contact Monitoring of Inhalation-Exhalation (I:E) Ratio in Non-Ventilated Subjects

open access: yesIEEE Journal of Translational Engineering in Health and Medicine
The inhalation-exhalation (I:E) ratio, known to be an indicator of respiratory disease, is the ratio between the inhalation phase and exhalation phase of each breath.
Paul S. Addison   +3 more
doaj   +1 more source

变位齿轮在直升机传动系统中的应用研究

open access: yesJixie chuandong, 2013
In order to study profile shifted gear in the helicopter transmission system,a pair of large ratio helicopter gear is studied.The influence of modification coefficient on gear tooth root sliding rate and contact ratio is studied,and the variation of ...
李英明   +4 more
doaj  

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