Results 41 to 50 of about 1,977,712 (188)
Meshing characteristics of variable hyperbolic circular-arc tooth trace cylindrical gears with cutter errors [PDF]
We investigate the relationship between cutter errors and meshing characteristics of the variable hyperbolic circular-arc tooth trace (VH-CATT) cylindrical gears. Firstly, based on the tooth surface forming principle, the tooth surface mathematical model
D. Ma, J. Long, Z. Zhu
doaj +1 more source
Gastroesophageal reflux disease and tooth erosion [PDF]
The increasing prevalence of gastroesophageal reflux disease (GERD) in children and adults, and of “silent refluxers” in particular, increases the responsibility of dentists to be alert to this potentially severe condition when observing unexplained ...
Kaidonis, J. +5 more
core +1 more source
Comparison of Tooth Size Discrepancy of Three Main Ethnics in Malaysia with Bolton's Ratio [PDF]
The objective of this study was to investigate the applicability of Bolton's ratios in orthodontic population of Malaysian main ethnics; Malay, Chinese and Indians.
Othman, S. A., Abd Rahman, A. N. A.
core +1 more source
Design and Mechanical Behavior Analysis of the Locking Mechanism on Jackup Drilling Platform
The jackup drilling platform uses widely the worm and worm wheel driven tooth-shape wedge-type locking system.The studies on the drilling platform gear and rack lifting system have been focused on the stability,but seldom on the stress and strain of the ...
Zhou Xin
doaj
Tooth Surface Contact Analysis of the Face Gear Pair Involving the Worm Wheel Installation Error
The actual tooth surface equation is established considering the worm wheel installation errors based on a five- axis linked CNC grinding machine. The tooth contact analysis( TCA analysis) on the actual tooth surface of face gear and pinion tooth surface
Cui Wei, Tang Jinyuan, Zhou Zhenyu
doaj
The evaluation method of the gear tooth sueface contact pattern and the new and old definition of the tooth surface contact pattern are introduced and compared.The evaluation method of the gear tooth surface contact pattern is proposed.Forming reason for
罗太景
doaj
An international survey of daily disposable contact lens prescribing
Free to read\ud \ud Purpose\ud \ud The aim was to determine the extent of daily disposable contact lens prescribing worldwide and to characterise the associated demographics and fitting patterns.\ud \ud Methods\ud \ud Up to 1,000 survey forms were sent ...
Morgan, Philip B. +3 more
core +1 more source
Load Tooth Contact Analysis for Arc Tooth Face Gear Considering Assembly Misalignment
The generating method is adopted for processing arc tooth face gear to ensure the meshing precision of arc tooth face gear pair. The tooth face contact model is established with assembly misalignment.
Cui Yanmei, Fang Zongde, Wang Xing
doaj
Tooth Contact Analysis of Herringbone Rack Gears of an Impulse Continuously Variable Transmission
Finite element based tooth contact analysis of a rack and pinion system of an impulse continuously variable transmission is performed in this study. The rack and pinion system are designed with involute profile herringbone tooth profiles.
Zhi Geng, Gang Li̇
doaj
The tooth edge contact of face gear drive with spur pinion isunavoidable. The meshing of face gear drive with spur pinion is investigated. A mathematical model and a constraint condition are developed, by which the contact points on tooth edge could be ...
沈云波, 方宗德, 赵宁, 魏冰阳
doaj

