Results 81 to 90 of about 171,295 (350)

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

A Closed-Form Inverse Kinematic Analytical Method for Seven-DOF Space Manipulator with Aspheric Wrist Structure

open access: yesMachines
The seven-degree-of-freedom space manipulator, characterized by its redundant and aspheric wrist structure, is extensively used in space missions due to its exceptional dexterity and multi-joint capabilities.
Guojun Zhao   +4 more
doaj   +1 more source

The double universal joint wrist on a manipulator: Solution of inverse position kinematics and singularity analysis [PDF]

open access: yes
This paper presents three methods to solve the inverse position kinematics position problem of the double universal joint attached to a manipulator: (1) an analytical solution for two specific cases; (2) an approximate closed form solution based on ...
Williams, Robert L., III
core   +1 more source

A Modular Low-clearance Wrist Orthosis for Improving Wrist Motion in Children with Cerebral Palsy [PDF]

open access: yes, 2014
Children with Cerebral Palsy (CP) often exhibit impairments in the coordination of the grip and lift phases of arm movements that directly impact their ability to perform activities of daily living (ADLs).
Beardsley, Scott A.   +3 more
core   +2 more sources

Soft and Strong: Elastic Conductors with Bio‐Inspired Self‐Protection

open access: yesAdvanced Materials, EarlyView.
A general reverse‐engineering approach is demonstrated for designing functional yarns that uses woven fabric architecture as a structural framework. The fabric‐based stretchable conductive yarns combine flexibility, high elasticity, low stiffness, self‐protection, and weavability with conventional textile processes. By fine‐tuning the number of elastic
Chenglong Zhang   +12 more
wiley   +1 more source

Study and computer-aided analysis of artificial human wrist [PDF]

open access: yes, 2015
© ASEE 2015The wrist joint is frequently affected by rheumatoid arthritis, resulting in wrist pain, deformity and ultimately loss of function. Artificial wrist implants have been introduced to treat the rheumatoid wrist, to attempt to alleviate pain and
Li, Jeremy (Zheng), Zhang, Jian
core  

Enhanced Thermal Conductivity in Tough and Environmentally Resilient Hydrogels

open access: yesAdvanced Materials Interfaces, EarlyView.
We enhance the thermal conductivity along with mechanical robustness and environmental resilience in hydrogels through a multiscale engineering stategy. ABSTRACT Hydrogels, known for their biocompatibility and responsiveness to external stimuli, are promising candidates for wearable sensors and electronics.
Seokkyoon Hong   +15 more
wiley   +1 more source

Examining the relationship between joint range of motion and serve speed and hit

open access: yesPhysical Education of Students, 2019
Purpose: In this study, the relationship between the joint range of motion, and the serve speed and hit rate of tennis players was examined. The voluntary participants of this study are tennis players in the university tennis team. Materials and Methods:
M. Soyal, M. Kaya, N.M. Çelik
doaj   +1 more source

Comparison Of Radiography Wrist Joint Posterior Anterior (Pa) Ulnar Deviation Central Ray Variation For Assessing Os Scaphoid [PDF]

open access: yes, 2019
Background: The technique of examining the wrist joint to see abnormalities in the carpalia region, especially in the scaphoid os, there is a special technique, namely ulnar deviation with variations of the central ray 150 to 250 proximally.
Heriansyah, H. (Heriansyah)   +2 more
core  

Electrolyte‐Jet 3D Printing of Copper‐Based Strain Sensors for Physiological Signal Monitoring and Robotic Manipulation

open access: yesAdvanced Materials Technologies, EarlyView.
Electrolyte‐jet (EJ) 3D printing turns copper ions into precisely arranged copper microspheres, which combine with flexible polymers and carbon nanomaterials to create durable, high‐sensitivity sensors. These sensors accurately monitor human motion and physiological signals. Real‐time robotic hand control via gesture mirroring demonstrates an intuitive
Wending Gu   +2 more
wiley   +1 more source

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