Results 61 to 70 of about 70,412 (305)
Jixie qiangdu, 2023 The contact ratio is an important performance index in the design of gear transmission, and it directly affects the load-bearing capacity and transmission stability of herringbone gears.
YIN XunMin +3 more
doaj
Calculation of losses in 2-D photonic crystal membrane waveguides using the 3-D FDTD method [PDF]
, 2004 The three-dimensional finite-difference time-domain method is used to obtain loss per unit length in a two-dimensional photonic crystal membrane waveguide by simulating three different length guides. Results are shown for propagation both above and below
Craddock, IJ +5 more
core +2 more sources
A Systematic Review and Meta‐Analysis of the Recurrence of Autoimmune Encephalitis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Autoimmune encephalitis (AE) is a disease with a potential for recurrence, and patients receive immunotherapy to prevent it. However, there is no consensus on the duration of immunotherapy. This study aimed to determine the recurrence rate and identify the risk factors for AE to provide guidance on the duration of immunotherapy ...
Shangkai Bai +5 more
wiley +1 more source
Study on Dynamic Coupling Behavior of End-Meshing Harmonic Reducers
MathematicsTo study the coupling mechanism and dynamic responses of an end-face-movable gear transmission system under complex excitation, a specific configuration of end-meshing, movable-gear reduction mechanism was used to achieve predetermined rigid-thrust ...
Tongliang Liu, Jianmin Wen, Yingda Chen
doaj +1 more source
Geometry and parameter design of novel circular arc helical gears for parallel-axis transmission
Advances in Mechanical Engineering, 2017 Based on the space curve meshing equation, in this article, a geometry design of a novel circular arc helical gear mechanism with pure rolling for parallel transmission was presented.
Zhen Chen +5 more
doaj +1 more source
hp-finite element method for simulating light scattering from complex 3D structures
, 2015 Methods for solving Maxwell's equations are integral part of optical metrology and computational lithography setups. Applications require accurate geometrical resolution, high numerical accuracy and/or low computation times.
Burger, S. +4 more
core +1 more source
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
Meshing Theory Analysis of Parallel Inclined Double Roller Enveloping Hourglass Worm Drive
Jixie chuandong, 2021 Based on the modification of single roller enveloping hourglass worm drive， a new type of worm drive， parallel inclined double roller enveloping hourglass worm drive is proposed.
Honghui Liao +3 more
doaj
Performance of a streaming mesh refinement algorithm. [PDF]
, 2004 In SAND report 2004-1617, we outline a method for edge-based tetrahedral subdivision that does not rely on saving state or communication to produce compatible tetrahedralizations. This report analyzes the performance of the technique by characterizing (a) mesh quality, (b) execution time, and (c) traits of the algorithm that could affect quality or ...
Thompson, David C. +1 more
openaire +2 more sources
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