Results 61 to 70 of about 63,518 (304)
Advances in Mechanical Engineering, 2017 This article investigates the meshing performance of planetary roller screws applying rollers with circular, elliptical, and parabolic threads. A mathematical model is established for the thread surface, and a method for analytically calculating the ...
Yanqiang Liu, Yu Shang, Jianshen Wang
doaj +1 more source
The factor analysis of organizational commitment, job satisfaction and performance among lecturers in Batam [PDF]
, 2019 This article intended to determine the important elements in commitment, satisfaction and job performance of university lecturers. This study involved 179 respondents from 3 universities located in Batam, Indonesia.
Hazriyanto, Hazriyanto +1 more
core +2 more sources
Electromagnetic shielding characteristics of composite microstructures mesh
Optics ExpressTo solve the difficulty in achieving that strong electromagnetic shielding and high infrared transmission of traditional square metal meshes, composite microstructures, i.e., circle-square, square-circle, hexagon-square, and honeycomb-square structures, exhibiting high electromagnetic interference shielding efficiency (EMI SE) comprising nonhomogeneous
Li Yang +5 more
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Arthritis Care &Research, EarlyView.Objective This systematic review aimed to assess the diagnostic accuracy of algorithms used to identify rheumatoid arthritis and juvenile idiopathic arthritis in electronic health records. Methods We searched Medline, Embase, and Cochrane Central Register for Controlled Trials databases and included studies that validated case definitions against a ...
Constanza Saka‐Herrán +10 more
wiley +1 more source
A basis for the analysis of surface geometry of spiral bevel gears [PDF]
, 1983 Geometrical procedures helpful in the fundamental studies of the surface geometry of spiral bevel gears are summarized. These procedures are based upon: (1) fundamental gear geometry and kinematics as exposited by Buckingham, et al; (2) formulas ...
Coy, J. J., Huston, R. L.
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Arthritis Care &Research, EarlyView.Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian +4 more
wiley +1 more source
Dynamic Analysis of High-Speed Helical Gear Transmission in Pure Electric Vehicle Gearbox
Shock and Vibration, 2020 This study is to systematically analyze the influences of time-varying meshing stiffness (TVMS) and meshing impact on the dynamic characteristics of high-speed gear transmission in the two-stage pure electric vehicle (PEV) gearbox, as well as the effect ...
Yanchao Zhang, Jinfu Du, Jin Mao, Min Xu
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Study of alternative geometries for fluidic oscillators by means of computational fluid mechanics [PDF]
, 2015 Se estudiará el fllujo en el interior de osciladores fluídicos mediante el uso de un código comercial de Mecánica de Fluidos Computacional.Se estudiarán diferentes diseños y se compararán sus rendimientos.1. Documentación y estudio del estado del arte. 2.
Baucells Fuster, Xavier
core
Thermal performance enhancement of a heat exchanger using metal chain as a novel turbulator [PDF]
, 2021 Enhancing heat transfer in a heat exchanger system is critical to many industrial applications. There are many problems that require in-depth studies to find solutions.
Ghitheeth, Ali Hussein
core
Simulation Analysis of Meshing Characteristic for Cycloid Meshing Drive of RV Reducer
Jixie chuandong, 2017 The cycloid pin wheel drive is essential to RV reducer. It is the basic point to determine the contact stiffness of cycloid and pin wheel. The equivalent contact stiffness is calculated based on Hertz contact theory. The parameters to solve the contact stiffness is checked and the stiffness model with teeth number in meshing simultaneously as a ...
Han Ju, Wang Xiaohu, Liang Liming
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