Results 51 to 60 of about 24,317 (245)

A Comparison of Pitching Biomechanics and Sport Specialization in High School Pitchers

International Journal of Sports Physical Therapy, 2022
# Background The prevalence of sport specialization in high school athletes continues to rise, particularly among baseball players. Previous research has focused on the incidence of injury among specialized and non-specialized athletes but has yet to ...
Tyler J. Hamer, Adam B. Rosen, Samuel J. Wilkins, Kristen F. Nicholson, Garrett S. Bullock, Brian A. Knarr   +5 more
doaj   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

Advanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang, Chao Hsuan (Joseph) Sung, Haitao Yu, Ezra Sarmiento, Katarina Kotanchek, Ryan Christopher Lee, Michelle Chan, David Kisailus   +7 more
wiley   +1 more source

A Highly Miniaturized, Wireless Inertial Measurement Unit for Characterizing the Dynamics of Pitched Baseballs and Softballs

Sensors, 2012
Baseball and softball pitch types are distinguished by the path and speed of the ball which, in turn, are determined by the angular velocity of the ball and the velocity of the ball center at the instant of release from the pitcher’s hand.
Noel C. Perkins, Ryan S. McGinnis
doaj   +1 more source

Grip strength is not related to increased medial elbow joint-space gapping induced by repetitive pitching

JSES International, 2020
Background: Pitching induces elbow valgus stress, which can lead to an increase in medial elbow joint-space gapping when repeated. Previous basic research on the medial elbow joint shows that the contraction associated with gripping reduces medial elbow ...
Hiroshi Hattori, PT, MS, CSCS, Kiyokazu Akasaka, PT, PhD, Takahiro Otsudo, PT, PhD, Toby Hall, PT, PhD   +3 more
doaj   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Experimental and analytical investigation of hypersonic fluid-structure-interactions on a pitching flat plate airfoil

, 2016
Understanding the effects of unsteady flows is a critical area of hypersonic research. This paper presents a comparison of experimental results and analytical tools commonly used for the prediction of fluid structure interactions: Piston theory, Van Dyke’
Jahn, Ingo, Buttsworth, David, Yamada, Kenji   +2 more
core   +1 more source

Engineered Nanotopography to Modulate Growth and Signaling of Neuronal Networks

Advanced Functional Materials, EarlyView.
This study examines the interaction between neurons and nanoscale topographies on engineered substrates. Neurons cultured on nanowires, nanopillars and nanoneedles exhibit enhanced neurite outgrowth, form more organized neuronal circuits, and display improved synaptic connectivity, compared to flat substrates.
Hao Nguyen Tran, Kalyan Shobhana, Zlatan Trifunovic, Dan Smith, Michael Stuiber, Chennupati Jagadish, Mirella Dottori, Andrea J. O'Connor, Vini Gautam   +8 more
wiley   +1 more source

Computational Fluid Dynamics Study on the Aerodynamics of a Blended Wing Body with Ground Effect in Subsonic Conditions [PDF]

Journal of Applied Fluid Mechanics
Blended Wing Body (BWB) aircraft designs have garnered significant interest due to their potential for improved aerodynamic efficiency, particularly during critical phases of flight such as landing and take-off.
S. Mohan, P. Kumar
doaj   +1 more source

Modal Analysis of Light Propagation, Polarization and Diffraction by Cholesteric Liquid Crystal Layers

Advanced Functional Materials, EarlyView.
The analysis of optical eigenmodes in chiral liquid crystal with perpendicular or tilted helical axis, and their correspondence with the external medium, leads to an intuitive understanding of the angle and wavelength dependency of transmissive and reflective diffraction.
Ke Xu, Pouya Nosratkhah, Le Zhou, Shengzhu Yi, Giorgio Manzoni, Kristiaan Neyts   +5 more
wiley   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

Advanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang, Xuelin Wu, Yinding Chi, Qingya Huang, Yaoye Hong, Antonio Proctor Martinez, Jingxian Wu, Bingzhi He, Cynthia Sung, Shu Yang   +9 more
wiley   +1 more source