Results 51 to 60 of about 3,599,285 (203)

Research of the Effects of Pressure Angle on Mesh Characteristic of Involute Cylindrical Gear

open access: yesJixie chuandong, 2016
The mesh model for the conventional involute gear pair is developed. Then the mesh characteristic is solved and analyzed. Based on the mesh model and the calculated results,the effects of normal pressure angle on the meshing slip coefficient,tooth root ...
Song Bin
doaj  

Active State Earth Pressure based on Dubrova’s Method of Redistribution of Pressure

open access: yesElectronic Journal of Structural Engineering, 2018
Modes and magnitude of wall movement have great influence on the distribution of earth pressure behind retaining wall. For gravity retaining wall exerted by cohesionless soil rotating outward about the base, based on Dubrova’s method of redistribution ...
S.C. Wang, F. Xu, Y. Shao
doaj   +1 more source

Diurnal Intraocular Pressure Fluctuation in Eyes with Angle-closure

open access: yesJournal of Current Glaucoma Practice, 2015
To investigate diurnal intraocular pressure (IOP) fluctuation in eyes with angle-closure.Seventy-seven eyes of 77 newly diagnosed patients with angle closure [33 subjects with primary angle-closure suspects (PACS), 23 subjects with primary angle-closure (PAC), and 21 subjects with primary angle-closure glau-coma (PACG)] were enrolled after laser ...
Bhartiya, Shibal, Ichhpujani, Parul
openaire   +2 more sources

An investigation of genetic risk factors in primary open-angle glaucoma [PDF]

open access: yes, 2009
Primary open-angle glaucoma (POAG) is a multifactorial disease with a strong genetic component. Notably however, few genes have been robustly associated with POAG in the general population.
Park, S.
core  

Letter with attachment: Paul M. Angle to Ida M. Tarbell, December 14, 1936

open access: yes, 1936
Letter with original transcript of preface to Whitney's Life on the Circuit with ...
Angle, Paul M.
core  

Research on the crack initiation patterns of hydraulic fracturing cracks under different fracture criteria

open access: yes矿业科学学报
This study aims to investigate the crack propagation mechanism of directional hydraulic fracturing of coal mine roof and explore the relationship between fracture criteria.
HOU Gongyu   +5 more
doaj   +1 more source

Effect of mean ocular perfusion pressure on primary open angle glaucoma

open access: yesBangabandhu Sheikh Mujib Medical University Journal, 2018
Primary open angle glaucoma is the most common form of glaucoma and it remains asymptomatic until the late stage of the disease. The purpose of this study is to compare the mean ocular perfusion pressure with the primary open angle glaucoma.
Pallab Kumar Sen   +2 more
doaj   +1 more source

A Universal Method for Generating Straight Bevel Gears

open access: yesJixie chuandong, 1994
An universal method for’ generating straight bevel gears is put forward in this paper.The straight bevel gears with non-standard pressure angle may be generated by the standard planing tool with nominal pressure angle of 20°,the crowned teeth having a ...
Dong Xuezhu
doaj  

Dynamics and effective distance of gas–liquid two-phase swirling flow induced by vortex tools

open access: yesAdvances in Mechanical Engineering, 2018
Based on the mechanistic model of the two-phase swirling annular flow behavior, a calculation method for the effective distance of vortex tool is obtained by taking Kelvin–Helmholtz instability into account.
Zhao Zhang, Ruiquan Liao, Jie Liu
doaj   +1 more source

General Checking Calculation of Shaving Cutter

open access: yesJixie chuandong, 2016
The cutting principle,design principle and the selection of the structure parameter of the shaving cutter are introduced,and taking the more common universal shaving machine YWA4232 in actual processing as example,the steps and formulas of general ...
Gao Min, Zhang Jinghua
doaj  

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