Results 81 to 90 of about 306,251 (301)

Robust adaptive kinematic control of redundant robots [PDF]

open access: yes
The paper presents a general method for the resolution of redundancy that combines the Jacobian pseudoinverse and augmentation approaches. A direct adaptive control scheme is developed to generate joint angle trajectories for achieving desired end ...
Tarokh, M., Zuck, D. D.
core   +1 more source

Single cell mechanics: stress stiffening and kinematic hardening

open access: yes, 2007
Cell mechanical properties are fundamental to the organism but remain poorly understood. We report a comprehensive phenomenological framework for the nonlinear rheology of single fibroblast cells: a superposition of elastic stiffening and viscoplastic ...
A. Mogilner   +10 more
core   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

open access: yesAdvanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

Kinematics and Dynamics of Motion Control Based on Acceleration Control

open access: yesIEEJ Transactions on Industry Applications, 2007
AbstractThe first IEYuzuruernational Workshop on Advanced Motion Control held in 1990 pointed out the importance of physical interpretation of motion control. The software servoing technology is now common in machine tools, robotics, and mechatronics. It has been intensively developed for the numerical control (NC) machines. Recently, motion control in
Kiyoshi Ohishi   +2 more
openaire   +2 more sources

Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance

open access: yesAdvanced Materials Interfaces, EarlyView.
Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad   +3 more
wiley   +1 more source

Agent Control for Reconfigurable Open Kinematic Chain Manipulators

open access: yesInternational Journal of Advanced Robotic Systems, 2013
This paper presents a method for the autonomous control of differently structured open kinematic chains based on multi-agent system technology. The appropriate level of distributing local autonomy (agents) to a manipulative structure is defined, which ...
Janez Sluga   +2 more
doaj   +1 more source

A new approach to global control of redundant manipulators [PDF]

open access: yes
A new and simple approach to configuration control of redundant manipulators is presented. In this approach, the redundancy is utilized to control the manipulator configuration directly in task space, where the task will be performed.
Seraji, Homayoun
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Inverse Kinematic Control of Humanoids under Joint Constraints

open access: yesInternational Journal of Advanced Robotic Systems, 2013
We propose an inverse kinematic control framework for a position controlled humanoid robot with bounded joint range, velocity, and acceleration limits.
Inhyeok Kim, Jun-Ho Oh
doaj   +1 more source

Kinematically redundant robot manipulators [PDF]

open access: yes
Research on control, design and programming of kinematically redundant robot manipulators (KRRM) is discussed. These are devices in which there are more joint space degrees of freedom than are required to achieve every position and orientation of the end-
Baillieul, J.   +5 more
core   +1 more source

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