Results 21 to 30 of about 13,001,808 (334)

Controller Design for Parallel Mechanism Solar Tracker

open access: yesMachines, 2023
Solar energy is considered a sustainable solution that has proven its technological competence for electricity generation among renewable energy sources.
Mustafa Engin
doaj   +1 more source

Development of an Insect-like Flapping-Wing Micro Air Vehicle with Parallel Control Mechanism

open access: yesApplied Sciences, 2022
Most traditional flapping-wing micro air vehicles (FMAVs) adopt a serial control mechanism, which means that one drive corresponds to one degree of freedom.
Zihao Chen   +3 more
doaj   +1 more source

Classical Proofs as Parallel Programs [PDF]

open access: yes, 2018
We introduce a first proofs-as-parallel-programs correspondence for classical logic. We define a parallel and more powerful extension of the simply typed lambda calculus corresponding to an analytic natural deduction based on the excluded middle law. The
Aschieri, Federico   +2 more
core   +2 more sources

Mapping the Tilt and Torsion Angles for a 3-SPS-U Parallel Mechanism

open access: yesRobotics, 2023
This article presents the analysis of a parallel mechanism of type 3-SPS-U. The usual singularity approach is carried out with respect to the Euler angles of the universal joint. However, this approach is computationally expensive especially when stacked
Swaminath Venkateswaran, Damien Chablat
doaj   +1 more source

Reducing branch delay to zero in pipelined processors [PDF]

open access: yes, 1993
A mechanism to reduce the cost of branches in pipelined processors is described and evaluated. It is based on the use of multiple prefetch, early computation of the target address, delayed branch, and parallel execution of branches. The implementation of
González Colás, Antonio María   +1 more
core   +2 more sources

Type Synthesis of 4-DOF Non-Overconstrained Parallel Mechanisms with Symmetrical Structures

open access: yesMachines, 2022
This paper presents the type synthesis of 4-DOF non-overconstrained parallel mechanisms (PMs) with symmetrical structures. A special topological structure that includes two intermediate platforms and one moving platform is employed. Constraint conditions
Wei Ye, Qinchuan Li, Xinxue Chai
doaj   +1 more source

Design and Experimental Research of 3-RRS Parallel Ankle Rehabilitation Robot

open access: yesMicromachines, 2022
The ankle is a crucial joint that supports the human body weight. An ankle sprain will adversely affect the patient’s daily life, so it is of great significance to ensure its strength.
Yupeng Zou   +5 more
doaj   +1 more source

First Principles Simulations of Boron Diffusion in Graphite [PDF]

open access: yes, 2007
Boron strongly modifies electronic and diffusion properties of graphite. We report the first ab initio study of boron interaction with the point defects in graphite, which includes structures, thermodynamics, and diffusion. A number of possible diffusion
El-Barbary, A A   +3 more
core   +1 more source

Parallel Connection of Silicon Carbide MOSFETs—Challenges, Mechanism, and Solutions

open access: yesIEEE transactions on power electronics, 2023
Power semiconductor devices are often connected in parallel to increase the current rating of the power conversion systems. However, due to mismatched circuit parameters or semiconductor fabrication discrepancies, the current of paralleled power ...
Helong Li   +4 more
semanticscholar   +1 more source

Kinematic Chain Equivalent Method for Tube Model and Elastodynamic Optimization for Parallel Mechanism Based on Matrix Structural Analysis

open access: yesApplied Sciences, 2022
The platforms of parallel mechanisms usually suffer vibration loads. In these cases, structure elastodynamic analysis and elastodynamic optimization of parallel mechanisms are important. A tube structure is very common for parallel mechanisms.
Caizhi Zhou, Youcheng Han, Weizhong Guo
doaj   +1 more source

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