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An Image Processing Method for Extraction of the Stress Wave Reflection Period

open access: yesApplied Sciences, 2020
The stress wave reflection method is widely used in the detection of structure size and integrity due to its advantages of low environmental impact and convenience.
Panpan Gong   +4 more
doaj   +1 more source

The phase shift of an ultrasonic pulse at an oil layer and determination of film thickness [PDF]

open access: yes, 2005
An ultrasonic pulse incident on a lubricating oil film in a machine element will be partially reflected and partially transmitted. The proportion of the wave amplitude reflected, termed the reflection coefficient, depends on the film thickness and the ...
Astridge D. G.   +4 more
core   +1 more source

Normal Reflection Characteristics of One-Dimensional Unsteady Flow Shock Waves on Rigid Walls from Pulse Discharge in Water

open access: yesShock and Vibration, 2017
Strong shock waves can be generated by pulse discharge in water, and the characteristics due to the shock wave normal reflection from rigid walls have important significance to many fields, such as industrial production and defense construction.
Dong Yan, Jinchang Zhao, Shaoqing Niu
doaj   +1 more source

The Influence of Crest Width and Working States on Wave Transmission of Pile–Rock Breakwaters in the Coastal Mekong Delta

open access: yesJournal of Marine Science and Engineering, 2022
The coastline of the Ca Mau and Kien Giang provinces in the Vietnamese Mekong Delta has been severely eroded in recent decades. Pile–Rock Breakwaters (PRBWs) are among the most widely adopted structures for controlling shoreline erosion in this region ...
Nguyet-Minh Nguyen   +8 more
doaj   +1 more source

Reflection of electromagnetic waves from mixtures of plane gravitational and scalar waves [PDF]

open access: yes, 2006
We consider colliding wave packets consisting of hybrid mixtures of electromagnetic, gravitational and scalar waves. Irrespective of the scalar field, the electromagnetic wave still reflects from the gravitational wave.
A. Badawi   +6 more
core   +2 more sources

Reflected waves and quantum gravity

open access: yesPhysical Review D, 2023
In the context of canonical quantum gravity, we consider the effects of a non-standard expression for the gravitational wave function on the evolution of inflationary perturbations. Such an expression and its effects may be generated by a sudden variation in the (nearly constant) inflaton potential.
Leonardo Chataignier   +3 more
openaire   +3 more sources

Reflection of Strong Blast Waves [PDF]

open access: yesThe Physics of Fluids, 1964
The reflection of strong point-source blast waves is studied using the continuum concept of flow of ideal gases. Methods of obtaining the upper and lower bounds as well as a Taylor series expansion of the position of the reflected shock is considered. The procedure of studying the flow variables near the reflected shock is also described.
Chang, Tien Sun, Laporte, Otto
openaire   +3 more sources

Limitations of augmentation index in the assessment of wave reflection in normotensive healthy individuals.

open access: yesPLoS ONE, 2013
ObjectivesAugmentation index (AIx) is widely used as a measure of wave reflection. We compared the relationship between AIx and age, height and sex with 'gold standard' measures of wave reflection derived from measurements of pressure and flow to ...
Alun D Hughes   +6 more
doaj   +1 more source

Physical Experimental Study on the Wave Reflection and Run-Up of a New Ecological Hollow Cube

open access: yesJournal of Marine Science and Engineering
Implementing quadrangular hollow blocks on breakwaters is a common method for wave mitigation and ocean disaster prevention. In order to improve the wave-damping performance of conventional quadrangular hollow blocks, a new quadrangular hollow block is ...
Haitao Zhao   +7 more
doaj   +1 more source

Effect of Rosensweig instability in a ferrofluid layer on reflection loss of a high-frequency electromagnetic wave

open access: yesAIP Advances, 2022
A ferrofluid layer separates into numerous subscale crests, which is referred to as Rosensweig instability, whose shape and size depend on the field condition and the composition of the ferrofluid. A ferrofluid consisting of nanoscale magnetite particles
Yan-Hom Li, Kuo-Lung Huang
doaj   +1 more source

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