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shock wave 4

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Prediction of the shear wave velocity

Amoroso SARA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1, Pages 83-92 doi: 10.1007/s11709-013-0234-6

Abstract: The paper examines the correlations to obtain rough estimates of the shear wave velocity from non-seismic

Keywords： horizontal stress index shear wave velocity flat dilatometer test cone penetration test

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definition of metabolic dysfunction-associated fatty liver disease with elevated brachial-ankle pulse wavevelocity and albuminuria: a prospective cohort study

Frontiers of Medicine 2022, Volume 16, Issue 5, Pages 714-722 doi: 10.1007/s11684-021-0888-8

Abstract: from non-alcoholic fatty liver disease (NAFLD), with the progression of elevated brachial-ankle pulse wavevelocity (baPWV) and albuminuria in a community-based study sample in Shanghai, China.

Keywords： dysfunction-associated fatty liver disease non-alcoholic fatty liver disease fibrosis score brachial-ankle pulse wavevelocity albuminuria

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Accounting for the uncertainties in the estimation of average shear wave velocity using – correlations

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5, Pages 1199-1208 doi: 10.1007/s11709-021-0749-1

Abstract: Shear wave velocity ( V _S) is a key parameter in such analysis, although the economyFurther, the average shear wave velocity of the top 30 m soil cover ( V _S30) is estimated

Keywords： uncertainties V _S– N correlations V _S30 SPT data statistical methodology

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A simple method for evaluating liquefaction potential from shear wave velocity

Lianyang ZHANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2, Pages 178-195 doi: 10.1007/s11709-010-0023-4

Abstract: The simplified procedure using shear wave velocity measurements is increasingly used to evaluate theThis paper develops a simple method for evaluating the liquefaction potential of soils from shear wavevelocity, the peak acceleration at the ground surface of the site, and the fines content of the soilThe most important factor has been identified as the shear wave velocity.Neither stress-correction of shear wave velocity nor calculation of cyclic shear stress as in the simplified

Keywords： liquefaction earthquake simple method shear wave velocity case history introduction

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Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4, Pages 503-509 doi: 10.1007/s11709-011-0132-8

Abstract: In the experiments, the attenuation laws of waveform amplitudes were discussed based on stress wave propagationThen the wave velocity was calculated based on the reach time of the stress wave from each sensor.The experimental results illustrated that the stress wave from different sources has a different frequencyspectrum, and the amplitude attenuation factor varied with the stress wave frequency; high frequency

Keywords： acoustic emission (AE) waveform wire breakage attenuation factor wave velocity

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Influence of site conditions on seismic design parameters for foundations as determined via nonlinear site response analysis

Muhammad Tariq A. CHAUDHARY

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1, Pages 275-303 doi: 10.1007/s11709-021-0685-0

Abstract: parameters required for the design of foundations include mass density ( ), damping ratio ( ), shear wavevelocity ( ), and soil shear modulus ( ).

Keywords： site effects 1D seismic site response analysis sensitivity analysis foundations shear wave velocity soil

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Recent Advances in Physical Optics Research

Huang Zhixun

Strategic Study of CAE 2006, Volume 8, Issue 2, Pages 18-29

Abstract:

This paper focuses on a series of theoretical and experimental studies of the physical optics, such as the Goos-Hänchen shift, the FTIR phenomena, the negative refraction index, the superluminal experiments of THz rays, and the measurement of photon rest mass. It indicates that the evanescent waves phenomena are becoming more important in physical optics research recently. For example, superluminal propagation is a result of the evanescent waves, i. e. the evanescent fields. The possibility of a finite photon rest mass remains one of the most important issues in physical optics, as it has a bearing on a series of fundamental questions. A discussion on the present situation in this area is given. Finally, the history and advances of optical frequency standard and optical frequency measurements are given in the article.

Keywords： physical optics negative wave velocity negative refraction index GH shift evanescent waves photon rest

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Quantitative Investigation of Tomographic Effects in Abnormal Regions of Complex Structures Article

Longjun Dong, Xiaojie Tong, Ju Ma

Engineering 2021, Volume 7, Issue 7, Pages 1011-1022 doi: 10.1016/j.eng.2020.06.021

Abstract: With the emergence of real-time monitoring, seismic wave velocity tomography allows the detection and

Keywords： Detection of abnormal regions Tomographic effects Wave velocity Ray path

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On Scattering and Radiation Problem for a Cylinder over a Cylindrical Barrier in Water of Finite Depth

Wu Bijun,Zheng Yonghong,You Yage,Sun Xiaoyan,Chen Yong

Strategic Study of CAE 2004, Volume 6, Issue 2, Pages 48-55

Abstract: to heave, surge, and pitch and for the diffraction potential due to the diffraction of an incident wave

Keywords： analytical method velocity potential wave force

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Faster Than Light and EM-Wave Anomalous Propagation

Huang Zhixun

Strategic Study of CAE 2000, Volume 2, Issue 10, Pages 80-92

Abstract:

In this paper, the historic background of the study on faster than light (FTL) and the possibility of working within the frame work of special relativity are discussed. The previous experimental studies with single photon, laser pulse and microwaves have revealed superluminal behavior in the quantum tunneling process. That phenomenon exists only in the case of special physical condition. The analogy between classical Telegraphist equation and Klein-gordon equation can be used to study particle tunneling and superluminal behavior. A discussion on the FTL experiment by Dr. L. Wang recently is included. Remarks on the future of FTL research is given in this article.

Keywords： light microwave anomalous propagation tachyon quantum tunneling process e-vanescent mode negative group velocity

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High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH)

Hossein ASADI KALAMEH, Arash KARAMALI, Cosmin ANITESCU, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2, Pages 101-110 doi: 10.1007/s11709-012-0160-z

Abstract: The modeling of high velocity impact is an important topic in impact engineering.The goal is to study the most sensitive input parameters (impact velocity and plate thickness) on the

Keywords： smoothed particle hydrodynamics high velocity impact sensitivity analysis

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Experimental study on velocity characteristics of recirculation zone in humid air non-premixed flame

GU Xin, ZANG Shusheng, GE Bing

Frontiers in Energy 2008, Volume 2, Issue 2, Pages 140-144 doi: 10.1007/s11708-008-0037-y

Abstract: examine the effect of the flow field within the recirculation zone on flame structure, the characteristic velocitydistance of the two stagnation points in humid air combustion shortens, and the minimal dimensionless velocityanalysis of axial minimal velocities on the centerline and their positions under different co-flow air velocityconditions reveals that fuel-to-air velocity ratio is the crucial parameter that governs humid air combustion

Keywords： distance bluff-body fuel-to-air velocity stagnation parameter

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Study on wave rotor refrigerators

Yuqiang DAI, Dapeng HU, Meixia DING

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 83-87 doi: 10.1007/s11705-009-0075-y

Abstract: As a novel generation of a rotational gas wave machine, the wave rotor refrigerator (WRR) is an unsteadyA basic limitation on main structural parameters and operating parameters is deduced and the wave diagramIn the DUT Gas Wave Refrigeration Studying and Development Center (GWRSDC) lab, the isentropic efficiency

Keywords： wave rotor refrigeration unsteady flow theory wave diagram

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Lamb wave propagation modeling for structure health monitoring

Xiaoyue ZHANG, Shenfang YUAN, Tong HAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 326-331 doi: 10.1007/s11465-009-0045-6

Abstract: A number of different numerical computational techniques have been developed for wave propagation studiesin complex media (LISA/SIM theory), has been effectively applied to numerical simulations of elastic waveThe finite difference equations describing wave propagation used in the LISA/SIM theory are obtained.

Keywords： Lamb wave modeling LISA/SIM theory finite difference equation finite element

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Theoretical study of failure in composite pressure vessels subjected to low-velocity impact and internal

Roham RAFIEE, Hossein RASHEDI, Shiva REZAEE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6, Pages 1349-1358 doi: 10.1007/s11709-020-0650-3

Abstract: research for predicting the failure in internally pressurized composite pressure vessels exposed to low-velocitythis purpose, layer-wise theory is employed in a composite cylinder under internal pressure and low-velocity

Keywords： composite pressure vessel low-velocity impact failure theoretical solution progressive damage modeling

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Title Author Date Type Operation

Prediction of the shear wave velocity

Amoroso SARA

Journal Article

definition of metabolic dysfunction-associated fatty liver disease with elevated brachial-ankle pulse wavevelocity and albuminuria: a prospective cohort study

Journal Article

Accounting for the uncertainties in the estimation of average shear wave velocity using – correlations

Journal Article

A simple method for evaluating liquefaction potential from shear wave velocity

Lianyang ZHANG,

Journal Article

Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Journal Article

Influence of site conditions on seismic design parameters for foundations as determined via nonlinear site response analysis

Muhammad Tariq A. CHAUDHARY

Journal Article