Results 61 to 70 of about 74,000,885 (282)

COMPARISON OF EFFECT OF BALANCE DISC AND BOSU BALL ON ANKLE DORSIFLEXOR AND PLANTARFLEXOR MUSCLE STRENGTH [PDF]

, 2019
Purpose of this study is to compare effect of balance disc (duradisk, dynadisk, balance ball, inflatable disc, etc.) and bosu ball on the strength development of ankle dorsiflexor and plantarflexor muscles of sedentary children.
Demir, Abdurrahman, Abdurrahman Demir
core   +1 more source

2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots

Advanced Functional Materials, EarlyView.
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa, Arielle Berman, Laura Schwendeman, Ferdows Afghah, Seanbiron Johnson, Ritu Raman   +5 more
wiley   +1 more source

Optimizing NiMo Electrocatalyst Coatings for Hydrogen Evolution in Alkaline Electrolysis With The Machine Learning‐Guided Autonomous Platform CatBot

Advanced Functional Materials, EarlyView.
This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio, Jonas Elsborg, Elif Coşkun, Andreas Burger, Pradipkumar Manubhai Leuaa, Thu Pham Anh Phan, Jin Hyun Chang, Christodoulos Chatzichristodoulou   +7 more
wiley   +1 more source

PTFE/carbon composite radial deep groove ball bearings: Part 2 – fabrication and analysis of bearings for characteristics

Polymers and Polymer Composites
Tribological characterization was carried out in part 1 of the paper on pure PTFE (PTFE) and 25% carbon-filled PTFE (CR25) polymers through the ball-on-disc test to determine the suitability of the material for ball-bearing applications.
Dhruv Deshwal, Sachin U. Belgamwar, Siddappa I. Bekinal   +2 more
doaj   +1 more source

Use of Artificial Neural Network (ANN) to Determining Surface Parameters, Friction and Wear during Pin-on-Disc Tribotesting

, 2017
In tribological analysis of machine elements (such as gears, ball/roller bearings etc.), surface roughness plays very important role, ultimately it affects the friction coefficient, wear, rolling contact fatigue (micro pitting) and other failure ...
D. Prajapati, M. Tiwari
semanticscholar   +1 more source

Molecularly Dissipative Liquid Crystal Elastomer Foams for Impact and Vibration Attenuation

Advanced Functional Materials, EarlyView.
Liquid crystal elastomer foams integrate cellular deformation with mesogen reorientation to create a dual‐scale energy dissipation mechanism. Progressive pore collapse absorbs mechanical loads, while stress‐induced mesogen reorientation provides additional damping, resulting in reduced impact transmission and broadband suppression of vibrational ...
Subi Choi, Sangyeop Lee, In‐sun Jeong, Kyungjun Song, Eugene M. Terentjev, Suk‐kyun Ahn   +5 more
wiley   +1 more source

Age effect on retina and optic disc normal values [PDF]

, 2005
Purpose: To investigate retinal thickness and optic disc parameters by the Retinal Thickness Analyzer (RTA) glaucoma program in older normal subjects and to determine any age effect.
Chryssafis, C., Hirneiß, Christoph, Neubauer, A. S., Tsinopoulos, I., Kampik, Anselm, Thiel, M.   +5 more
core   +1 more source

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

Advanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa, Frank Kaulfuß, Stefan Makowski, Volker Weihnacht   +3 more
wiley   +1 more source

A numerical and experimental study on the factors that influence heat partitioning in disc brakes [PDF]

, 2010
YesTo investigate the heat partition on a vehicle disc brake, a small scale test rig with one contact interface was used. This allowed the disc/pad contact temperatures to be measured with fast-response foil thermocouples and a rubbing thermocouple ...
Day, Andrew J., Qi, Hong Sheng, Loizou, Andreas   +2 more
core   +3 more sources

牵引传动试验方法的归纳和对比研究

Jixie chuandong, 2009
Two common test methods of traction drive are introduced:four-ball method and two-disc method.Based on the methords,an experiment of roll and disc method is carried out by using traction drive testing machine in reciprocating.
牛永生, 田伟华
doaj