Results 41 to 50 of about 13,820,639 (229)

Impact of shoulder abduction angle on peak force and myoelectric activity during maximal isometric bench press in resistance-trained men [PDF]

Journal of Applied Sports Sciences
The purpose of this study was to investigate the infl uence of shoulder abduction positions (45° vs. 90°) on peak force (PF) production and myoelectric activity (sEMG) of the upper and lower pectoralis major (UPM, LPM), anterior
Paulo Marchetti, Colin Stas, Charles Lopes, Estevão Monteiro   +3 more
doaj   +3 more sources

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

The Role of Ultra‐Thin Passive Films and Organic Adsorbates on Aluminum Chips for a Friction‐Induced Solid‐State Recycling Process

Advanced Engineering Materials, EarlyView.
Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller, Steffen Gabsa, Werner Homberg, Guido Grundmeier   +3 more
wiley   +1 more source

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

Advanced 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, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Shoulder Muscle Activation of Novice and Resistance Trained Women during Variations of Dumbbell Press Exercises [PDF]

Journal of Sports Medicine, 2013
Previous research has compared the effects of trunk inclination angle on muscle activation using barbells and Smith machines in men. Whether similar effects occur with the use of dumbbells or in women remains unknown. The purpose was to compare upper extremity surface electromyographical (EMG) activity between dumbbell bench, incline, and shoulder ...
Joshua Luczak, Andy Bosak, Bryan L. Riemann   +2 more
openaire   +3 more sources

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

The Effects of a 16-Week Periodized Resistance Training Program on the Strength, Power, and Body Composition of Elite Collegiate Cheerleaders

Sports
This study examined the effects of a 16-week periodized resistance training program on the strength, power, and body composition of elite collegiate cheerleaders.
Seiichiro Takei, Kei Kato, Mamiko Ichikawa, Kana Iwano   +3 more
doaj   +1 more source

Is radiofrequency treatment effective for shoulder impingement syndrome? A prospective randomized controlled study

, 2013
Background: To determine whether radiofrequency based plasma microtenotomy has a positive effective in the treatment of shoulder impingement syndrome with cuff tendinosis.
Zhang, Qiang, Lu, Yi, Zhu, Yiming, Jiang, Chunyan   +3 more
core   +1 more source

Shoulder Muscle Activity in Sport Climbing in Naturally Chosen and Corrected Shoulder Positions [PDF]

, 2017
Objective:The aim of the study was to determine electromyographic activity of the scapula stabilizing muscles in naturally chosen and corrected shoulder positions in typical static climbing postures.Methods:Six male participants undertook surface ...
Nick Draper, Baláš, Jiří, Jiří Baláš, David Giles, David Pánek, Duchačová, Alena, Kateřina Kotalíková, Giles, David, Pánek, David, Draper, Nick, Alena Duchačová, Kotalíková, Kateřina   +11 more
core   +1 more source