Results 31 to 40 of about 44,971 (262)

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

Nonplanar Bouligand Architectures for Enhanced Mechanical Performance in Cementitious Composites

Advanced Materials, EarlyView.
Inspired by the impact region of the Mantis shrimp dactyl club, nonplanar additive manufacturing translates sinusoidal Bouligand architectures into cementitious composites. Printing‐induced anisotropy and architected interfaces promote distributed damage and arrest crack propagation, enhancing strength and energy absorption.
Yu Wang, Loukham Shyamsunder, Phani Saketh Dasika, Andrew Nguyen, David Kisailus, Jan Olek, Jeffrey P. Youngblood, Pablo D. Zavattieri   +7 more
wiley   +1 more source

The Assessment of Isometric, Dynamic, and Sports-Specific Upper-Body Strength in Male and Female Competitive Surfers

Sports, 2018
The primary purpose of this study was to investigate gender differences in the dynamic strength index (DSI): an assessment of upper-body dynamic strength relative to maximal isometric strength.
Joanna Parsonage, Josh Secomb, Rebecca Dowse, Brendon Ferrier, Jeremy Sheppard, Sophia Nimphius   +5 more
doaj   +1 more source

Programmable Microgel Degradation in Dynamic Granular Hydrogels Guides Extracellular Matrix Assembly During Tissue Repair

Advanced Materials, EarlyView.
This study reports on the chemical modification of hyaluronic acid to create hydrogels with hydrolytic degradability ranging from 2–28 days. Granular hydrogels that undergo timed degradation to increase porosity enhance cell invasion and provisional ECM remodeling in a muscle injury model, leading to reduced fibrosis and improved regeneration ...
Zhiyuan Chen, Tuba Marjan, Xinyue Lu, Nicole E. Mertens, Keira Vesy, Dean E. Stornello, James F. Markworth, Taimoor H. Qazi   +7 more
wiley   +1 more source

The Effect of Virtual Reality on Isometric Muscle Strength

Progress in Nutrition, 2022
The aim of the study is to determine the acute effects of virtual reality on isometric muscle strength, pain intensity, perceived exertion, and heart rate. The study sample comprised 46 male sedentary individuals with a mean age of 28,56±5,25, who don’t have a sports experience and any health problems. Participants were divided into two groups, A and B,
Dolu, Umut, Camliguney, Asiye Filiz
openaire   +2 more sources

3D‐Printing Aided Rapid Prototyping of Pretensioned Tensegrity Structures for Robotic Applications

Advanced Robotics Research, EarlyView.
Printing, injection molding, and assembly (PMA) is a method for rapid prototyping mesoscale, topologically complex, and tensioned tensegrity structures. In combination with PMA method, two mold design strategies: modular mold and compact channel layout, enable efficiency and scalability for tensegrity fabrication.
Yi Sun, Jan Petrš, Omar Aloui, Dario Floreano   +3 more
wiley   +1 more source

Assessment of Rotator Cuff External Rotation: Isometric vs. Isotonic Testing Modes

Journal of Functional Morphology and Kinesiology
Objectives: To assess intra-session reliability of isometric and isotonic shoulder external rotation (ER) strength tests and to compare their outcomes. Methods: Thirty-eight healthy subjects (19 females; 19 males; 25.7 ± 6.0 years; 175 ± 9 cm; 70.3 ± 11 ...
Luca Maestroni, Filippo Beretta, Fabio Civera, Paolo Artina, Marco Cuniberti, Francesco Bettariga, Anthony Turner   +6 more
doaj   +1 more source

MicroRoboScope: A Portable and Integrated Mechatronic Platform for Magnetic and Acoustic Microrobotic Experimentation

Advanced Robotics Research, EarlyView.
This work presents the MicroRoboScope, a highly integrated, compact, and portable microrobotic experimentation platform combining electromagnetic and acoustic actuation with real‐time visual feedback into a single, end‐to‐end device. The system enables closed‐loop control and tracking algorithm experimentation within an accessible and unified hardware ...
Max Sokolich, Yanda Yang, Subrahmanyam Cherukumilli, Fatma Ceren Kirmizitas, Sambeeta Das   +4 more
wiley   +1 more source

Randomised, cross-over trial on the effect of isotonic and isometric exercise on pain and strength in proximal hamstring tendinopathy: trial protocol

BMJ Open Sport & Exercise Medicine, 2021
Background Proximal hamstring tendinopathy (PHT) is a condition that occurs at all ages and levels of sporting participation. Presenting as localised lower buttock pain with tasks such as squatting and sitting, it can cause disability with sport, work ...
Andrew John Hahne, Aidan Rich, Jilliane Leigh Cook, Jon Ford   +3 more
doaj   +1 more source

A Transnasal Endoscope for Robotically Assisted Gastroscopy

Advanced Robotics Research, EarlyView.
This work introduces a 4.25 mm diameter magnetically navigated transnasal endoscope for upper gastrointestinal (GI) screening and intervention. The system enables precise remote steering throughout the upper GI tract and is demonstrated through in vitro and in vivo experiments, including the robotic execution of preprogrammed retroflexions, trans ...
Alexandre Mesot, Michelle Mattille, Sean Lyttle, Shannon M. Chan, Philip W. Y. Chiu, Quentin Boehler, Bradley J. Nelson   +6 more
wiley   +1 more source