Results 11 to 20 of about 205,308 (302)

Research on the Influence of Mix Ratio on Rebound Rate of Shotcrete

open access: yesRenmin Zhujiang, 2021
Shotcrete often has the disadvantages of high rebound rate and serious construction loss. By optimizing the mix ratio of shotcrete, and considering the three factors of water-cement ratio, sand ratio and cementitious material content, this paper designs ...
YANG Yongmin
doaj   +1 more source

Analysis of Rebound Rate of Wet Shotcrete Based on Experiment and Discrete Element Method

open access: yesShock and Vibration, 2022
Wet shotcrete support is the main support method for underground engineering construction at present. The rebound rate is one of the indicators to evaluate the support effect, and a lower rebound rate will improve the construction effect of wet shotcrete.
Chang Su, Zhuang Wu, Xiaokui Zheng
doaj   +2 more sources

Heritability of heart rate recovery and vagal rebound after exercise [PDF]

open access: yesEuropean Journal of Applied Physiology, 2016
The prognostic power of heart rate recovery (HRR) after exercise has been well established but the exact origin of individual differences in HRR remains unclear. This study aims to estimate the heritability of HRR and vagal rebound after maximal exercise in adolescents.
Ineke Nederend   +4 more
openaire   +6 more sources

Human immunodeficiency virus rebound after suppression to < 400 copies/mL during initial highly active antiretroviral therapy regimens, according to prior nucleoside experience and duration of suppression [PDF]

open access: yes, 2002
This study evaluated 1433 human immunodeficiency virus (HIV)-infected patients starting highly active antiretroviral therapy (HAART), 409 (28%) of whom had prior nucleoside experience and achieved an HIV load of
Bickel, M   +11 more
core   +1 more source

Approach of a vortex pair to a rigid free surface in viscous fluid [PDF]

open access: yes, 1991
The motion in a viscous incompressible fluid of a vortex pair toward a rigid plane wall on which slip is allowed is considered. It is shown that the centroids of vorticity do not approach the wall monotonically, and there is some rebound at a rate ...
Saffman, P. G.
core   +1 more source

RATES OF FITNESS DECLINE AND REBOUND SUGGEST PERVASIVE EPISTASIS

open access: yesEvolution, 2013
Unraveling the factors that determine the rate of adaptation is a major question in evolutionary biology. One key parameter is the effect of a new mutation on fitness, which invariably depends on the environment and genetic background. The fate of a mutation also depends on population size, which determines the amount of drift it will experience. Here,
Perfeito, L   +3 more
openaire   +3 more sources

Energy analysis on rebound dynamics of two droplets impacting a superhydrophobic surface simultaneously

open access: yesAIP Advances, 2021
When multiple droplets impact a superhydrophobic surface, coalescence between the droplets may lead to an increased viscous dissipation rate and thus an increased contact time. In this study, the impact of double droplets on a superhydrophobic surface is
Xin Wang   +4 more
doaj   +1 more source

Numerical Study on Single-Bubble Contraction–Rebound Characteristics in Cryogenic Fluids

open access: yesApplied Sciences, 2022
In cryogenic fluid storage and delivery, the rapid contraction and rebound of bubbles are prone to occur during bubble collapse due to the pressure saltation.
Shaohang Yan   +7 more
doaj   +1 more source

Energy substitution, technical change and rebound effects [PDF]

open access: yes, 2014
This paper investigates the relationships between energy efficiency improvements by producers, the ease of substitution between energy and other inputs and the size of the resulting “rebound effects”.
Allan   +60 more
core   +2 more sources

Modulation of post-movement beta rebound by contraction force and rate of force development. [PDF]

open access: yesHuman brain mapping, 2016
Movement induced modulation of the beta rhythm is one of the most robust neural oscillatory phenomena in the brain. In the preparation and execution phases of movement, a loss in beta amplitude is observed [movement related beta decrease (MRBD)]. This is followed by a rebound above baseline on movement cessation [post movement beta rebound (PMBR ...
Fry, Adam   +7 more
openaire   +4 more sources

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