Results 51 to 60 of about 4,739,268 (353)
Journal of Sport and Health Science, 2019 Highlights • Four split times can model velocity-time and velocity-distance curves accurately during acceleration in elite male sprinters.• Maximum velocity was negatively associated with all 20-m sections of a 100-m sprint in addition to overall sprint ...
Robin Healy, Ian C. Kenny, A. Harrison
semanticscholar +1 more source
A Study on Shock Absorption Characteristics of Honeycomb-Inserted Bollards
Applied Sciences, 2020 Lack of shock absorption capability of conventional steel bollards causes significant vehicle damage and, consequently, high repair costs. This research studies a solution to reduce vehicle damage by inserting polylactic acid (PLA) honeycomb structures ...
Sangwon Seon +3 more
doaj +1 more source
Control of laser wake field acceleration by plasma density profile [PDF]
, 2007 We show that both the maximum energy gain and the accelerated beam quality can be efficiently controlled by the plasma density profile. Choosing a proper density gradient one can uplift the dephasing limitation.
A. Pukhov, F. F. Chen, I. Kostyukov
core +1 more source
Alexandria Engineering Journal, 2023 Crosswind degrades the aerodynamic behaviour of trains, especially during train acceleration, and an understanding of the flow field and train safety details requires more research attention.
Dan Zhou +3 more
doaj +1 more source
Conjugate gradient acceleration of maximum-likelihoodimagerestoration
Electronics Letters, 1995 A maximum-likelihood iterative deconvolution algorithm is accelerated using a conjugate gradient technique with a minimum mean square error criterion. Significant acceleration over previous techniques is achieved with little additional computation.
D.S.C. Biggs, M. Andrews
openaire +1 more source
The Effects of the 6 February 2023 Pazarcık-Kahramanmaraş Earthquake on Hatay Province
Doğal Afetler ve Çevre DergisiFebruary 6, 2023 Kahramanmaraş-centered earthquakes had severe consequences in Hatay province, a province of approximately 1.7 million people. As a result of this disaster, 23,065 people lost their lives in Hatay, 13,517 structures were completely ...
Bülent Özmen +2 more
doaj +1 more source
Applied Sciences, 2023 Experimental results reveal that rocking shallow foundations reduce earthquake-induced force and flexural displacement demands transmitted to structures and can be used as an effective geotechnical seismic isolation mechanism.
Sivapalan Gajan
doaj +1 more source
Longitudinal Ion Acceleration from High-Intensity Laser Interactions with Underdense Plasma
, 2007 Longitudinal ion acceleration from high-intensity (I ~ 10^20 Wcm^-2) laser interactions with helium gas jet targets (n_e ~ 0.04 n_c) have been observed.
Clarke, R. J. +13 more
core +1 more source
Time-dependent energetic proton acceleration and scaling laws in ultra-intense laser pulses interactions with thin foils [PDF]
, 2008 A two-phase model, where the plasma expansion is an isothermal one when laser irradiates and a following adiabatic one after laser ends, has been proposed to predict the maximum energy of the proton beams induced in the ultra-intense laser-foil ...
Bi, Yuanjie +5 more
core +1 more source
Upper Limit of Outer Radiation Belt Electron Acceleration Driven by Whistler‐Mode Chorus Waves
Geophysical Research Letters, 2022 We investigate the outer radiation belt electron energy spectra of the highest fluxes observed during storms based on Van Allen Probes measurements, which demonstrate a similar shape despite various levels of geomagnetic activity.
M. Hua, J. Bortnik, Q. Ma
semanticscholar +1 more source