Results 1 to 10 of about 1,160,382 (294)

A Clinician’s Guide to Analysis of the Pitching Motion [PDF]

Current Reviews in Musculoskeletal Medicine, 2019
This review examines recent literature regarding analysis of the throwing motion in baseball players and how modern technology may be used to predict or prevent injury.Proper throwing technique is vitally important to prevent injury and it is easier to correct poor mechanics prior to foot strike. Recent findings suggest that the inverted-W position may
Heath Melugin
exaly   +5 more sources

Effects of non-sinusoidal pitching motion on the propulsion performance of an oscillating foil. [PDF]

PLoS ONE, 2019
Numerical simulations have been used in this paper to study the propulsion device of a wave glider based on an oscillating hydrofoil, in which the profile of the pitching and heaving motion have been prescribed for the sake of simplicity.
Zhanfeng Qi, Jingsheng Zhai, Guofu Li, Jiazhong Peng   +3 more
doaj   +3 more sources

Power Extraction Performance by a Hybrid Non-Sinusoidal Pitching Motion of an Oscillating Energy Harvester

Energies
This study proposes a hybrid pitching motion for oscillating flat plates aimed at augmenting the energy extraction efficiency of an energy harvester. The proposed hybrid pitching motion, within the first half cycle, integrates a non-sinusoidal movement ...
Suleiman Saleh, Chang-Hyun Sohn
doaj   +4 more sources

A combined logistic regression and decision tree analysis of factors influencing throwing velocity and accuracy in little league baseball players [PDF]

JSES International
Background: We investigated factors related to pitching performance—defined by pitch velocity and accuracy—based on baseball experience, pitching workload, anthropometrics, and range of motion and strength (grip and shoulder) among little league baseball
Hitoshi Shitara, MD, PhD, Tsuyoshi Tajika, MD, PhD, Ryosuku Miyamoto, MD, Yuhei Hatori, MD, Fukuhisa Ino, MD, Kurumi Nakase, MD, Takuma Kachi, MD, Rei Noguchi, PhD, Kozo Furushima, MD, PhD, Tadanao Funakoshi, MD, PhD, Azusa Miyamoto, PT, MS, Yuta Kainuma, PT, Hirotaka Chikuda, MD, PhD   +12 more
doaj   +2 more sources

Experimental study on heat transfer characteristics of plate evaporator under heaving, pitching, and rolling conditions [PDF]

Scientific Reports
To investigate the variation characteristics of heat transfer performance in plate evaporators within the ocean thermal energy conversion (OTEC) systems of underwater unmanned vehicles (UUVs) under marine motion conditions, a flow boiling experimental ...
Hongju Chen, Bangting Yu, Yiping Zhang, Yuhang Zhou, Cui Li, Yonghu Wu, Xu He, Dan Hua, Chengbin Zhang   +8 more
doaj   +2 more sources

Study on Nonlinear Aerodynamic Characteristics of a Semi-Closed Box Bridge Deck Based on Coupled Amplitude Variation

Applied Sciences, 2022
This paper explores the nonlinear characteristics of the self-excited aerodynamic forces of a semi-closed box deck section to perfect the theory of aeroelastic response analysis.
Haoyang Lu, Jie Jia, Lixin Zhang, Lin Dong   +3 more
doaj   +1 more source

Pitch motion with random chord sequences [PDF]

Perception & Psychophysics, 1989
Perception of global pitch motion was studied through psychoacoustic experiments with random chord sequences. Chords contained either six or eight (fixed) tone elements, being sinusoidal, sawtooth-like, or Shepard tones, which were either on or off according to a probability controlled by the experimenter.
Allik, J., Dzhafarov, E.N., Houtsma, A.J.M., Ross, J., Versfeld, N.J.   +4 more
openaire   +3 more sources

Perceptual influence of auditory pitch on motion speed

Journal of Vision, 2021
There is a cross-modal mapping between auditory pitch and many visual properties, but the relationship between auditory pitch and motion speed is unexplored. In this article, the ball and baffle are used as the research objects, and an object collision experiment is used to explore the perceptual influence of auditory pitch on motion speed. Since cross-
Zhang, Gangsheng, Wang, Wei, Qu, Jue, Li, Hengwei, Song, Xincheng, Wang, Qingli   +5 more
openaire   +2 more sources

Shadow pitching deviates ball release position: kinematic analysis in high school baseball pitchers

BMC Sports Science, Medicine and Rehabilitation, 2021
Background Although shadow pitching, commonly called “towel drill,” is recommended to improve the throwing motion for the rehabilitation of pitching disorders before the initiation of a throwing program aimed at returning to throwing using a ball, the ...
Shigeaki Miyazaki, Go Yamako, Koji Totoribe, Tomohisa Sekimoto, Yuko Kadowaki, Kurumi Tsuruta, Etsuo Chosa   +6 more
doaj   +1 more source

Research on the Rolling Motion and Pitch Motion of Planing Boat [PDF]

Advances in Engineering Research, 2014
In this paper, a planing boat has been selected as the research object, which has been used as a model to make a new model by scaling. And the free decay experiments have been conducted under different states including different rolling angle, different pitching angle and different ship's draft, whose corresponding mathematical models have been ...
Song-Lin YANG, Zi-Fan WEI, Sheng ZHANG
openaire   +1 more source