Results 31 to 40 of about 920,377 (338)

Analytical determination of wear resistance criteria of a stamping tool for various loading conditions

open access: yesAdvanced Engineering Research, 2020
Introduction. The paper is devoted to the analytical determination of general criteria for predicting the wear resistance of heavily loaded friction couples, in particular, stamping tools, operating under various loading conditions.
S. D. Kolotienko   +2 more
doaj   +1 more source

KaKs_Calculator 2.0: A Toolkit Incorporating Gamma-Series Methods and Sliding Window Strategies

open access: yesGenomics, Proteomics & Bioinformatics, 2010
We present an integrated stand-alone software package named KaKs_Calculator 2.0 as an updated version. It incorporates 17 methods for the calculation of nonsynonymous and synonymous substitution rates; among them, we added our modified versions of ...
Cas Key
semanticscholar   +1 more source

A New Reaching Law for Antidisturbance Sliding-Mode Control of PMSM Speed Regulation System

open access: yesIEEE transactions on power electronics, 2020
In this article, in order to optimize the dynamic performance of the permanent magnet synchronous motor (PMSM) speed regulation system, a nonlinear speed-control algorithm for the PMSM control systems using sliding-mode control is developed.
Yao-Qiang Wang   +3 more
semanticscholar   +1 more source

Rolling-Sliding Performance of Radial and Offset Roller Followers in Hydraulic Drivetrains for Large Scale Applications: A Comparative Study

open access: yesMachines, 2023
Generally speaking, excessive side thrust and roller slippage are two different aspects affecting cam-roller mechanisms. In novel large-scale hydraulic drivetrains for offshore wind turbines, the highly dynamic nature of these mechanisms combined with ...
Pedro Amoroso   +2 more
doaj   +1 more source

The Effect of Pre-Stretched Substrate on the Electrical Resistance of Printed Ag Nanowires

open access: yesNanomaterials, 2023
One-dimensional nanomaterials have drawn attention as an alternative electrode material for stretchable electronics. In particular, silver nanowires (Ag NWs) have been studied as stretchable electrodes for strain sensors, 3D electronics, and freeform ...
Yoon Jae Moon   +4 more
doaj   +1 more source

Continuous finite-time control for robotic manipulators with terminal sliding mode

open access: yesat - Automatisierungstechnik, 2003
A continuous finite-time control scheme for rigid robotic manipulators is proposed using a new form of terminal sliding modes. The robustness of the controller is established using the Lyapunov stability theory.
Shuang-He Yu   +3 more
semanticscholar   +1 more source

Ultrafast high-endurance memory based on sliding ferroelectrics

open access: yesScience
The persistence of voltage-switchable collective electronic phenomena down to the atomic scale has extensive implications for area- and energy-efficient electronics, especially in emerging nonvolatile memory technology.
Kenji Yasuda   +9 more
semanticscholar   +1 more source

Discrete-time output feedback sliding-mode control design for uncertain systems using linear matrix inequalities [PDF]

open access: yes, 2011
An output feedback-based sliding-mode control design methodology for discrete-time systems is considered in this article. In previous work, it has been shown that by identifying a minimal set of current and past outputs, an augmented system can be ...
Floquet, Thierry   +7 more
core   +1 more source

SLIDING OF POLYETHYLENE COMPOSITES ON ARTIFICIAL TURF [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2020
Artificial turf made of polyethylene (PE) fibers is extensively applied in sport yards.  It offers cheaper and carefree alternative for natural turf. The high magnitude of electrostatic charge (ESC) generated from polyethylene (PE) fibers has negative ...
A. S. Ali, W. Y. Ali, R. A. Ibrahem
doaj   +1 more source

An Adaptive Backstepping Nonsingular Fast Terminal Sliding Mode Control for Robust Fault Tolerant Control of Robot Manipulators

open access: yesIEEE Transactions on Systems, Man & Cybernetics. Systems, 2019
This paper develops a novel control methodology for tracking control of robot manipulators based on a novel adaptive backstepping nonsingular fast terminal sliding mode control (ABNFTSMC).
Mien Van, M. Mavrovouniotis, S. Ge
semanticscholar   +1 more source

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