Results 111 to 120 of about 6,842,466 (349)

A Universal Method for Generating Straight Bevel Gears

Jixie 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

Advances 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

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

Arthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier, Matthew N. Vigliotti, Paige E. Rice, Brian Pietrosimone, Shannon L. Mihalko, Edward H. Ip, Richard F. Loeser, David J. Hunter, Ali Guermazi, Ryan Hill, Santiago Saldana, Kim L. Bennell, Paul DeVita   +12 more
wiley   +1 more source

General Checking Calculation of Shaving Cutter

Jixie 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  

Research on Optimization of Pressure Wave Waveform of Continuous Wave Drilling Fluid Pulse Generator

Shiyou jixie, 2020
To solve the problem of poor half periodicity of pressure wave shape of continuous wave drilling fluid pulse generator, the pressure difference calculation model and numerical simulation calculation model are established, and the pressure waveform of ...
Liu Xianbo, Xue Liang, Liu Min, Wang Zhiming, Zhang Zheng, Shao Tianyu   +5 more
doaj  

Pain and Patient‐Reported Physical Function Did Not Differ Among Body Composition Profiles in Patients With Hip Osteoarthritis

Arthritis Care &Research, EarlyView.
Objective To explore whether higher body fat and lower lean mass are associated with greater pain and worse patient‐reported physical function in individuals with hip osteoarthritis (OA). A secondary aim was to examine whether pain and patient‐reported physical function differ according to four body composition profiles: high body fat, low lean mass ...
Alexandra Ryan, Boliang Wang, Fiona Dobson, Ben Kirk, Travis Haber, Kim L. Bennell, Shirley P. Yu, Kim Allison, Ricardo J. S. Costa, Gabrielle Knox, Michelle Hall   +10 more
wiley   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Root Stresses of Helical Gears with Higher Pressure Angle

, 1986
The tooth deflection and bending moment at root fillet due to a concentrated load on a gear tooth of long tooth with various pressure angles were calculated by the finite difference method(FDM) and compared with those measured.
S. Oda, T. Koide, K. Umezawa
semanticscholar   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source