Results 21 to 30 of about 3,192,729 (295)

Experimental and Numerical Studies on Bond Quality of Fully Grouted Rockbolt under Confining Pressure and Pull-Out Load

open access: yesShock and Vibration, 2022
In mining engineering, the in situ stress changes with the stress induced by the surrounding mining activities. It positively or negatively affects the propagation of ultrasonic guided waves in rockbolts.
Shuisheng Yu, Leilei Niu, Jin Chen
doaj   +1 more source

Corner Convergence Effect of Enclosed Blast Shock Wave and High-Pressure Range

open access: yesApplied Sciences, 2022
An explosion inside a cabin will converge at the corners to form high-pressure areas, significantly impacting the destruction of a bulkhead structure.
Xudong Li   +3 more
doaj   +1 more source

Standing waves in the plenum of an open jet wind tunnel: Resonance and self-excited oscillation

open access: yesAIP Advances, 2022
The low-frequency pressure pulsations in a large low-speed open jet wind tunnel were studied using a 1:20 scaled model wind tunnel. It was found that plane pressure standing waves existed in all three directions of the wind tunnel’s plenum.
Ling Jin   +5 more
doaj   +1 more source

WAVE MEASUREMENTS BY A PRESSURE TYPE WAVE GAUGE

open access: yesCoastal Engineering Proceedings, 1968
The paper deals with comparative measurements of irregular model waves by a pressure type wave gauge and a continuous wire wave gauge. For the depth and wave conditions used in the study it is concluded that the height of individual waves obtained by a pressure type gauge and using the first order wave theory may be in considerable error, while wave ...
P. O. Bergan, A. Tørum, A. Trætteberg
openaire   +2 more sources

Second Sound Shock Waves in Rotating Superfluid Helium [PDF]

open access: yes, 1983
Second sound shock waves have been used to examine the breakdown of superfluidity in bulk He II. The maximum counterflow velocity achieved in this manner was measured at a variety of temperatures and pressures.
Torczynski, John Robert
core   +1 more source

Wave propagation in flexible tubes [PDF]

open access: yes, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Wave dissipation was previously investigated intensively in the frequency domain, in which the dissipation of waves is described as attenuation of pressure ...
Feng, Jiling
core   +7 more sources

Materials and Life Science Experimental Facility at the Japan Proton Accelerator Research Complex I: Pulsed Spallation Neutron Source

open access: yesQuantum Beam Science, 2017
At the Japan Proton Accelerator Research Complex (J-PARC), a pulsed spallation neutron source provides neutrons with high intensity and narrow pulse width pulse to promote researches on a variety of science in the Materials and Life Science Experimental ...
Hiroshi Takada   +10 more
doaj   +1 more source

Second-order perturbations in Alfvén waves in finite pressure plasma

open access: yesSolar-Terrestrial Physics, 2022
It is shown first that in finite pressure plasma, just as in cold plasma, Alfvén waves created by an initial perturbation generate plasma flows and decreases in the magnetic field, which propagate along with these waves.
Dmitrienko I. S.
doaj   +1 more source

Waves in a fluid layer excited by pressure variations above the free surface [PDF]

open access: yesГеосистемы переходных зон
The aim of the paper was to study the problem of waves in a layer of incompressible fluid of constant depth. The interest in the problem arose due to the excitation and propagation of surface waves in the Pacific Ocean as a result of the powerful ...
Korolev, Yury P.
doaj   +1 more source

B waves: a systematic review of terminology, characteristics, and analysis methods

open access: yesFluids and Barriers of the CNS, 2019
Background Although B waves were introduced as a concept in the analysis of intracranial pressure (ICP) recordings nearly 60 years ago, there is still a lack consensus on precise definitions, terminology, amplitude, frequency or origin. Several competing
Isabel Martinez-Tejada   +4 more
doaj   +1 more source

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