Results 21 to 30 of about 219,591 (307)

Comparison between two ultrasonic methods in their ability to monitor the setting process of cement pastes [PDF]

open access: yes, 2009
This paper presents the comparison between ultrasonic wave transmission (USWT) method and ultrasonic wave reflection (USWR) method in their ability to monitor the setting process of cement pastes.
Akkaya   +23 more
core   +2 more sources

An An Accurate Estimation of Shear Wave Velocity Using Well Logging Data for Khasib Carbonate Reservoir - Amara Oil Field

open access: yesJournal of Engineering, 2020
Shear and compressional wave velocities, coupled with other petrophysical data, are vital in determining the dynamic modules magnitude in geomechanical studies and hydrocarbon reservoir characterization. But, due to field practices and high running cost,
Rwaida K. AbdulMajeed, Ayad A. Alhaleem
doaj   +1 more source

Effects of Particle Shape on the Shear Wave Velocity and Shear Modulus of 3D Printed Sand Analogs

open access: yesOpen Geomechanics, 2022
Isolating the effects of individual particle properties (e.g. shape, size, mineralogy, surface roughness) on the mechanical behavior of naturally occurring coarse-grained soils is a significant challenge in experimental studies.
Alejandro Martinez, Sheikh Sharif Ahmed
doaj   +1 more source

Measuring Shear Wave Velocity Using Bender Elements

open access: yesGeotechnical Testing Journal, 2005
Abstract The use of bender element to measure shear wave velocity is popular due to its simplicity. However, there are still some uncertainties in the interpretation of the bender element test. In this paper, the use of bender elements in the determination of shear wave velocities of dry, unsaturated, and saturated soil specimens is ...
Leong, Eng Choon   +2 more
openaire   +2 more sources

Uso de geofísica para determinar el perfil de suelo en las formaciones geológicas de la ciudad de Ocaña, Norte de Santander

open access: yesMundo Fesc, 2022
Currently, the use of geophysical techniques to establish the shear wave velocity profile of a soil is widespread. One of these techniques is microtremor refraction, which uses ambient noise to measure the shear wave velocity (Vs), a parameter that ...
Romel Jesús Gallardo-Amaya   +2 more
doaj   +1 more source

Inner core composition paradox revealed by sound velocities of Fe and Fe-Si alloy

open access: yesNature Communications, 2022
The origin of the observed low shear wave velocity in the solid inner core is unclear. Here, the authors report shear wave velocities of iron and iron-silicon alloy under Earth’s core conditions by shock compression and find that neither the effect of ...
Haijun Huang   +11 more
doaj   +1 more source

Deep Learning for High Speed Optical Coherence Elastography

open access: yes, 2020
Mechanical properties of tissue provide valuable information for identifying lesions. One approach to obtain quantitative estimates of elastic properties is shear wave elastography with optical coherence elastography (OCE).
Bengs, Marcel   +5 more
core   +1 more source

Elastic properties of silicate melts: Implications for low velocity zones at the lithosphere-asthenosphere boundary. [PDF]

open access: yes, 2017
Low seismic velocity regions in the mantle and crust are commonly attributed to the presence of silicate melts. Determining melt volume and geometric distribution is fundamental to understanding planetary dynamics.
Clark, Alisha N, Lesher, Charles E
core   +2 more sources

PREDICTION OF SHEAR WAVE VELOCITY AND MODIFICATION OF CASTAGNA AND CARROLL RELATIONSHIPS IN ONE OF THE IRANIAN OIL FIELDS

open access: yesRudarsko-geološko-naftni Zbornik, 2022
Shear wave velocity is one of the essential parameters for describing hydrocarbon reservoirs that have several applications in petrophysical, geophysical, and geomechanical studies.
Mohammad Sadegh Mahmoudian   +2 more
doaj  

Relationship between Shear Wave Velocity and SPT-N Value for Residual Soils

open access: yesMATEC Web of Conferences, 2018
The shear wave velocity (Vs) is an important dynamic parameter in the field of geotechnical engineering. One of the surface wave methods is Spectral Analysis of Surface Wave (SASW) has received attention in obtaining the shear wave velocity (Vs) profile ...
Bawadi Nor Faizah   +3 more
doaj   +1 more source

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