Results 21 to 30 of about 6,842,466 (349)

KINEMATIC SYNTHESIS OF THE GUIDE BEARING CENTRAL SLIDE-CRANK MECHANISM OF THE GRIPPING DEVICE BASED ON THE ENERGETIC MOTION TRANSMISSION INDEX

Nauka ta progres transportu, 2020
Purpose. The main objective of the work is to perform a kinematic analysis and synthesis of the known schemes of guide bearing central slide-crank mechanisms by the criterion of the energy index of motion transmission with the restriction by the ...
R. P. Pogrebnyak, M. R. Pohrebniak
doaj   +1 more source

Study on involute rotor profile based on pressure angle reduction

Journal of Physics: Conference Series, 2020
By adopting the method of reducing the pressure angle, this paper carried out an improvement on the profile of traditional involute rotor. It’s whole tooth profile is described exactly by combining the meshing principle of gears with parameter equation ...
Linlin Liu, Peijun Chen, Jinqiao Du, Xinyi Wang   +3 more
semanticscholar   +1 more source

Incident Open-Angle Glaucoma and Blood Pressure [PDF]

Archives of Ophthalmology, 2002
The risk of open-angle glaucoma (OAG) may be related to low blood pressure (BP) relative to intraocular pressure (IOP), ie, to low perfusion pressure (PP). Alternatively, systemic hypertension may increase OAG risk.To clarify these possible relationships by evaluating hypertension and PP (where PP = BP - IOP) as risk factors for incident OAG in a black
M Cristina, Leske, Suh-Yuh, Wu, Barbara, Nemesure, Anselm, Hennis   +3 more
openaire   +2 more sources

Numerical simulation of dust removal effect of long pressure and short drainage in coal roadway tunneling with variable angle fresh air flow

Meikuang Anquan, 2023
Conventional long distance forced and short distance exhausted ventilation system create vortexes at the head, which increases the further dust accumulation and circulation.
XIAO Yang, SUN Shuaiqiang, YANG Xueer, CAO Yong, WANG Zhenping, FAN Ning   +5 more
doaj   +1 more source

Analysis of composite motion law and force of high speed curve-face gear

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
A new type of curve-face gear pair - high speed curve-face gear pair is proposed. It combines the high speed cam motion law and the curve-face gear transmission, and can transmit rotation/axial motion and power between intersecting axis.
Chao LIN, Yongquan YU, Yanan HU
doaj   +1 more source

The effectiveness of early lens extraction with intraocular lens implantation for the treatment of primary angle-closure glaucoma (EAGLE): study protocol for a randomized controlled trial [PDF]

, 2011
Glaucoma is the leading cause of irreversible blindness. Although primary open-angle glaucoma is more common, primary angle-closure glaucoma (PACG) is more likely to result in irreversible blindness.
Burr, JM, Vale L., Azuara-Blanco, Augusto; id_orcid, Gla, EIA-C, Friedman, D, Jimmy Lai, Cochran C., Ramsay C., Nolan, W, Cochran, C, Ramsay, C, Quayyum Zahidul, Azuara-Blanco A., Aung T., McDonald, A, Cochran, Claire, AzuaraBlanco, A, Zahidul Quayyum, McPherson, Gladys, Ramsay, Craig, Foster P., Friedman David, Lai Jimmy, Norrie, John David Taylor, Cochran Claire, McPherson Gladys, McDonald, Alison, Vale, L, Ramsay Craig, Winnie Nolan, Alison McDonald, Burr J.M., Burr, Jennifer M., Aung Tin, Paul Chew, null null, Azuara-Blanco, A, Quayyum, Z, McPherson, G, Azuara-Blanco, Augusto, Burr, Jennifer M, Quayyum, Zahidul, Effectiveness in Angle-closure Glaucoma of Lens Extraction (EAGL, Lai, Jimmy, Augusto Azuara-Blanco, Tin Aung, Foster, P, Norrie, John, Chew Paul, Burr Jennifer M, Foster, Paul, Effectiveness in Angle-closure Glaucoma of Lens Extraction (EAGLE) Study Group, Claire Cochran, David Friedman, Chew, Paul, Nolan, Winnie, Vale, Luke, Friedman D., Lai, J, Friedman, David, Chew P., McPherson G., Foster Paul, Norrie John, Norrie J., John Norrie, Lai J., Aung, T, Aung, Tin, Vale Luke, Craig Ramsay, Gladys McPherson, Paul Foster, McDonald A., McDonald Alison, Jennifer M Burr, Norrie, J, Chew, P, Nolan Winnie, Luke Vale, Quayyum Z., Nolan W., Azuara-Blanco Augusto   +82 more
core   +1 more source

Calculation Method of the Finite Soil Pressure for a New Foundation Pit Adjacent to an Existing Subway Station

Applied Sciences, 2023
The study aimed at the simple prediction problem of finite soil pressure for a new foundation pit adjacent to an existing subway station. Failure modes of the finite soil were proposed.
Zhenbo Zhang, Jiadi Zhou, Fei Xu, Zhichun Liu, Minglei Sun   +4 more
doaj   +1 more source

Effects of quadriceps angle on patellofemoral contact pressure

Journal of Veterinary Science, 2020
An inappropriate Q angle may affect the biomechanics of the canine patellofemoral joint.The purpose of this study was to evaluate the effects of changes in quadriceps angle (Q angle) on patellofemoral joint pressure distribution in dogs.Eight stifles were positioned at 45, 60, 75, 90, 105, and 120° of flexion in vitro, and 30% body weight was applied ...
Yoon-Hyeong Yoo, Sung-Jun Lee, Soon-wuk Jeong   +2 more
openaire   +2 more sources

Bending strength simulation of asymmetric involute tooth gears

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
Aiming at high load capacity, the design of the tooth profile which is not caught by the conventional profile is performed. Root stresses are calculated by 2D-FEM for various profile gears: 1) completely bilateral symmetry, 2) symmetry pressure angle and
Tomoya MASUYAMA, Yasunari MIMURA, Katsumi INOUE   +2 more
doaj   +1 more source

Simulation Research on the Time-Varying Meshing Stiffness and Vibration Response of Micro-Cracks in Gears under Variable Tooth Shape Parameters

Applied Sciences, 2019
The gear is one of the important parts of a rotary gearbox. Once catastrophic gear failure occurs, it will cause a great threat to production and life safety.
Jianfeng Ma, Tongtong Liu, Chunqing Zha, Liuyang Song   +3 more
doaj   +1 more source