Results 71 to 80 of about 32,692 (250)

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

Advanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk, Lukas Benecke, Chokri Cherif, Johannes Mersch   +3 more
wiley   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

The effect of sterilization and number of use on the accuracy of friction-style mechanical torque limiting devices for dental implants

Dental Research Journal, 2014
Background: Mechanical torque limiting devices (MTLDs) are necessary tools to control a peak torque and achieving target values of screw component of dental implants.
Ali Fayaz, Minoo Mahshid, Aboulfazl Saboury, Seyed Jalil Sadr, Ghassem Ansari   +4 more
doaj   +1 more source

Peak torque, reaction time, and rate of torque development of hip abductors and adductors of older women

Physiotherapy Theory and Practice, 2016
Impaired muscle function at the hip has been implicated to be a major factor related to falls in older adults. Therefore, the aim of this study was to analyze the rate of torque development (RTD), reaction time (RT), and peak torque (PT) of hip abductors and hip adductors in young women (YW), older women nonfallers (ONF), and older women fallers (OF ...
Morcelli, Mary Hellen, Rossi, Denise Martineli, Karuka, Aline Harumi, Crozara, Luciano Fernandes, Hallal, Camilla Zamfolini, Marques, Nise Ribeiro, Goncalves, Mauro, Navega, Marcelo Tavella   +7 more
openaire   +4 more sources

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Velocity-specific knee strength between professional and under-17 female volleyball player

South African Journal of Physiotherapy, 2019
Background: Many studies have investigated isokinetic performance in volleyball players but not through surface maps. Objectives: The goals of this study were to assess velocity-specific isokinetic knee extensor–flexor muscle strength and to compare the
Alexandre R.M. Pelegrinelli, Laís F. Dela Bela, Mariana F. Silva, Lucas C.R. Rodrigues, João P. Batista, Leandro C. Guenka, Josilainne M. Dias, Lee E. Brown, Rodrigo L. Carregaro, Felipe A. Moura, Jefferson R. Cardoso   +10 more
doaj   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Effects of different rest intervals in high intensity interval training programs on VO2max, body composition, and isokinetic strength and power [PDF]

Journal of Men's Health
The aim of this study was to evaluate the effect of 8 weeks of short and long rest running-based high-intensity training (HIIT) on body composition, isokinetic strength, and maximal oxygen uptake (VO2max). Nineteen physically active men were recruited
Recep Fatih Kayhan, Serdar Bayrakdaroğlu, Halil İbrahim Ceylan, Özgür Eken, Yeşim Bayrakdaroğlu, Georgian Badicu, Sameer Badri Al-Mhanna, Razvan-Sandu Enoiu, Luca Paolo Ardigò   +8 more
doaj   +1 more source

In Vivo Monitoring of Thrombo‐Inflammatory Biomarkers via Molecularly Imprinted Polymer‐Integrated Hydrogel Microneedles

Advanced Materials, EarlyView.
A wearable electrochemical microneedle patch integrates Prussian Blue redox transduction with molecularly imprinted polymer recognition for reagent‐free sampling and detection of thrombo‐inflammatory biomarkers in dermal interstitial fluid. The platform tracks thrombin and inflammatory cytokines with sensitive in vitro, ex vivo, and in vivo performance,
Mahmoud Ayman Saleh, Peyman GhavamiNejad, Arash Khorrami Jahromi, Sanjana Srikant, Sripadh Guptha Yedire, Fatemeh Keyvani, Roozbeh Siavash Moakhar, Sajad Shiekh, Mackenzie Graham, Joe Quadrilatero, Mahla Poudineh, Sara Mahshid   +11 more
wiley   +1 more source

The effect of aging on the accuracy of new friction-style mechanical torque limiting devices for dental implants.

Frontiers in Dentistry, 2013
High variability in delivering the target torque is reported for friction-style mechanical torque limiting devices (F-S MTLDs). The effect of aging (number of use) on the accuracy of these devices is not clear. The purpose of this study was to assess the
Aboulfazl Saboury, Seyed Jalil Sadr, Ali Fayaz, Minoo Mahshid   +3 more
doaj