Results 71 to 80 of about 145,123 (305)

Analysis of Kinematics and Leveling Performance of a Novel Cable-Driven Parallel Automatic Leveling Robot for Spacecraft Hoisting

open access: yesAerospace
Aiming at the problems of excessive dependence on manual operations, unquantifiable parameters, low hoisting efficiency, and low level of automation and informatization in the lifting process of spacecraft, a novel cable-driven parallel automatic ...
Zhuohong Dai   +5 more
doaj   +1 more source

A Novel Position Compensation Scheme for Cable-Pulley Mechanisms Used in Laparoscopic Surgical Robots

open access: yesSensors, 2017
The tendon driven mechanism using a cable and pulley to transmit power is adopted by many surgical robots. However, backlash hysteresis objectively exists in cable-pulley mechanisms, and this nonlinear problem is a great challenge in precise position ...
Yunlei Liang   +3 more
doaj   +1 more source

Design and Performance of an Elbow Assisting Mechanism

open access: yesMachines, 2020
An elbow assisting device is presented as based on a cable-driven parallel mechanism with design solutions that are improvements from a previous original design.
Giacomo Zuccon   +3 more
doaj   +1 more source

Cable-Driven Actuation for Highly Dynamic Robotic Systems

open access: yes, 2018
This paper presents design and experimental evaluations of an articulated robotic limb called Capler-Leg. The key element of Capler-Leg is its single-stage cable-pulley transmission combined with a high-gap radius motor.
Hutter, Marco   +3 more
core   +1 more source

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

Deployment/retraction mechanism for solar maximum mission high gain antenna system [PDF]

open access: yes, 1979
A mechanism called a deployment/retraction assembly (DRA) which provides not only a stable, but a deployable platform for the high gain antenna system (HGAS) aboard the Solar Maximum Mission (SMM) spacecraft is described.
Bennett, N., Preiswerk, P.
core   +1 more source

Stochastic Impedance

open access: yes, 2019
The concept of impedance, which characterises the current response to a periodical driving, is introduced in the context of stochastic transport. In particular, we calculate the impedance for an exactly solvable model, namely the stochastic transport of ...
Cleuren, Bart, Proesmans, Karel
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Design and analysis of cable-driven mechanical gripper for complex manipulation

open access: yesJournal of Physics: Conference Series, 2020
Abstract This paper studies the design and analysis problem of a class of cable-driven mechanical gripper for complex object manipulations. More precisely, a new structure design of mechanical gripper with cable-driven mechanism is first proposed with details for effective object grasping. In addition, an effective method is developed to
Deyang Zhang, Bo Cheng, Zhiyong Yue
openaire   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

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