Results 91 to 100 of about 332,036 (332)

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Traction-drive force transmission for telerobotic joints [PDF]

open access: yes
A mechanism which meets the requirements of a teleoperated manipulator and those of an autonomous robot is discussed. The mechanism is a traction-drive differential that uses variable preload mechanisms.
Kuban, D. P., Williams, D. M.
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Modèle des interactions dynamiques [PDF]

open access: yes, 2014
In robotic-based machining, an interaction between the workpiece and technological tool causes essential deflections that significantly decrease the manufacturing accuracy.
CARO, Stéphane   +2 more
core   +1 more source

Robot Impedance Control and Passivity Analysis with Inner Torque and Velocity Feedback Loops [PDF]

open access: yes, 2016
Impedance control is a well-established technique to control interaction forces in robotics. However, real implementations of impedance control with an inner loop may suffer from several limitations.
Boaventura, Thiago   +6 more
core   +1 more source

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

open access: yesAdvanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky   +3 more
wiley   +1 more source

Experimental Research on Variable Stiffness Property of Hydraulic Ball Joint for Rail Vehicles

open access: yes机车电传动, 2019
One hydraulic ball joint with variable stiffness characteristics for rail vehicles was proposed, which used hydraulic mechanism embedded in rubber elastomer to improve dynamic stiffness.
Xingwu DING   +5 more
doaj  

Unidirectional variable stiffness hydraulic actuator for load-carrying knee exoskeleton

open access: yesInternational Journal of Advanced Robotic Systems, 2017
This article presents the design and experimental testing of a unidirectional variable stiffness hydraulic actuator for load-carrying knee exoskeleton.
Jun Zhu   +4 more
doaj   +1 more source

Design and Analysis of Variable Flexible Actuator for Human-Robot Interaction

open access: yesXibei Gongye Daxue Xuebao, 2019
In view of the shortcomings of the traditional high-rigidity robots that can't ensure safety of human-robot interaction and the adaptability of complex environment, a variable stiffness flexible actuator is proposed for the robot joint based on the ...

doaj   +1 more source

Space Frames with Multiple Stable Configurations [PDF]

open access: yes, 2007
This paper is concerned with beamlike spaceframes that include a large number of bistable elements, and exploit the bistability of the elements to obtain structures with multiple stable configurations.
Pellegrino, S., Schioler, T.
core   +1 more source

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