Results 91 to 100 of about 33,488 (315)

Differential Kinematics Of Contemporary Industrial Robots

open access: yesInternational Journal of Applied Mechanics and Engineering, 2014
The paper presents a simple method of avoiding singular configurations of contemporary industrial robot manipulators of such renowned companies as ABB, Fanuc, Mitsubishi, Adept, Kawasaki, COMAU and KUKA.
T. Szkodny
doaj   +1 more source

Optimal Design of Planar Paraller Manipulators 3 RRR Through Lower Energy Consumption

open access: yes, 2009
Organised by: Cranfield UniversityIn most existing studies, the solutions of planar parallel manipulators are restricted to a feasible region of solution. This research provides an optimal solution in link dimension of planar parallel manipulators to a
Ledezma-Rubio, Y. A.   +1 more
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Integrated Intelligent Control of Redundant Degrees-of-Freedom Manipulators via the Fusion of Deep Reinforcement Learning and Forward Kinematics Models

open access: yesMachines
Redundant degree-of-freedom (DOF) manipulators offer increased flexibility and are better suited for obstacle avoidance, yet precise control of these systems remains a significant challenge.
Yushuo Chen   +3 more
doaj   +1 more source

Reduction in Robotic Arm Energy Consumption by Particle Swarm Optimization

open access: yesApplied Sciences, 2020
Improved energy usage efficiency is a common goal for economic and environmental reasons. In this manuscript, we present a new approach for the execution of a point-to-point robot motion.
Aleš Vysocký   +6 more
doaj   +1 more source

Controle de força indireto para manipuladores com transmissões flexíveis empregados em tarefas de esmerilhamento [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.A flexibilidade ´e um efeito presente em muitos dos rob#os industriais provocando erros de posicionamento, aumento do ...
Barasuol, Victor
core  

Dynamic Modeling and Simulation of a Rotating Single Link Flexible Robotic Manipulator Subject to Quick Stops

open access: yes, 2014
Single link robotic manipulators are extensively used in industry and research operations. The main design requirement of such manipulators is to minimize link dynamic deflection and its active end vibrations, and obtain high position accuracy during its
Noroozi, Siamak, Dupac, Mihai
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Joint angle measurement of manipulator and error compensation based on an IMU sensor

open access: yesThe Journal of Engineering, 2019
To detect the joint angle of the manipulator accurately, a measuring method based on an IMU sensor is proposed. The sensor's attitude angles and corresponding rotation matrix are obtained according to the data of three-axis gyroscope and three-axis ...
Tianlin Zhang   +4 more
doaj   +1 more source

Variable structure control of robot manipulators (the example of the SPRINTA)

open access: yes, 2000
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 12/01/2000.The subject of this thesis is the design and practical application of a model-based controller with variable structure control (VSC).
Nigrowsky, Pierre
core  

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