Results 101 to 110 of about 2,438,793 (304)

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

Finite element modelling and load share analysis for involute worm gears with localised tooth contact [PDF]

open access: yes, 2001
A new approach has been developed by the authors to estimate the load share of worm gear drives, and to calculate the instantaneous tooth meshing stiffness and loaded transmission errors. In the approach, the finite element (FE) modelling is based on the
Gentle, CR, Su, D, Yang, F
core  

点线啮合齿轮弯曲疲劳强度优化

open access: yesJixie chuandong, 2012
In order to improve the efficiency of point-line meshing gear design,the multiplier method is used in point-line meshing gear optimization design.Taking the actual bending fatigue strength safety coefficient of point-line meshing gear is the largest as ...
黄海, 秦英奕, 陶德馨, 龙宏欣
doaj  

Leakage and Volumetric Efficiency Analysis and Seal Improvement of Internal Gear Pump with Multi Output

open access: yesXibei Gongye Daxue Xuebao, 2019
Based on the analysis of the structural characteristics of the internal meshing gear pump with multi-output, the main leakage ways in the gear pump are summarized.

doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Counting cases in substitope algorithms [PDF]

open access: yes, 2004
We describe how to count the cases that arise in a family of visualization techniques, including Marching Cubes, Sweeping Simplices, Contour Meshing, Interval Volumes, and Separating Surfaces.
Banks, D.C.   +2 more
core   +1 more source

Generation principle and meshing characteristics of conjugate-curve circular arc gears

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
The generation principle and meshing characteristics of conjugate-curve circular arc gears, which is proposed based on the theory of conjugate curves, are studied in this paper.
Dong LIANG   +3 more
doaj   +1 more source

Three‐Dimensional Anomalous Hall Sensing Enabled By Spin–Orbit Torque Driven Domain Reconfiguration In Chiral Multilayers

open access: yesAdvanced Functional Materials, EarlyView.
A three‐dimensional magnetic field sensor is realized in chiral W/CoFeB/MgO multilayers, where spin–orbit torques reversibly reconfigure homochiral stripe domains. The symmetry of the torque enables offset‐free in‐plane sensing, while the reproducible domain reconfiguration extends the linear out‐of‐plane range. An anomalous Hall readout delivers large‐
Sabri Koraltan   +16 more
wiley   +1 more source

Study on the Meshing Force and Meshing Rigidity of Cylinder Sine Oscillation Tooth Transmission [PDF]

open access: yes, 2015
Based on the hypothesis of stretch small distortion and distortion congruity,the model and algorithm of meshing force analysis under theoretical conditions are given.According to the Hertz theory and geometric relation of meshing pair,the meshing ...
Zeng Yunyun, Yuan Xinmei, Zhou Sizhu
core   +1 more source

Analysis and Simulation of Meshing Efficiency of Helical Gear Differential Gear Train

open access: yesJixie chuandong, 2017
On the basis of taking 2K-H type helical differential gear train as the basic prototype,by analyzing the transmission efficiency of its transformation part and piecewise integration in meshing range,the result of the meshing efficiency of the internal ...
Zhou Chunguo   +3 more
doaj  

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