Results 21 to 30 of about 432,453 (195)

Review of the identification of near-fault velocity pulse-like strong ground motions

地球与行星物理论评, 2023
Strong pulse-like ground motions have caused extensive damage to many engineering structures and are one of the main factors influencing earthquake damage in near-fault regions.
Xiaofen Zhao, Zengping Wen
doaj   +1 more source

Superluminal optical pulse propagation in nonlinear coherent media [PDF]

, 2002
The propagation of light-pulse with negative group-velocity in a nonlinear medium is studied theoretically. We show that the necessary conditions for these effects to be observable are realized in a three-level $\Lambda$-system interacting with a ...
A. Dogariu, A. Lezama, A.M. Akulshin, A.M. Steinberg, A.M. Steinberg, A.Yu. Andreev, B. Segard, C. Liu, C.G.B. Garrett, D. Budker, D. Budker, D. Grischkowsky, D. Grischkowsky, D.F. Phillips, D.L. Fisher, E.L. Bolda, G. Diener, G. Diener, G. Kurizki, L.J. Wang, L.V. Hau, M. Blaauboer, M.M. Kash, N.G. Basov, R.Y. Chiao, R.Y. Chiao, Ruben G. Ghulghazaryan, S. Chu, S.E. Harris, S.E. Harris, V.A. Sautenkov, Yuri P. Malakyan   +31 more
core   +2 more sources

Comparison of sequentially measured Aloka echo-tracking one-point pulse wave velocity with SphygmoCor carotid–femoral pulse wave velocity

SAGE Open Medicine, 2013
Objectives: Recently, echo-tracking-derived measures of arterial stiffness have been introduced in clinical practice for the assessment of one-point pulse wave velocity.
Olga Vriz, Caterina Driussi, Salvatore La Carrubba, Vitantonio Di Bello, Concetta Zito, Scipione Carerj, Francesco Antonini-Canterin   +6 more
doaj   +1 more source

Analytical Aspects of Velocity Pulses on Seismic Behaviour of Mid-Rise Compound Skeleton of Steel Moment Frame and Eccentrically Braced Panels [PDF]

Journal of Structural and Construction Engineering, 2019
Steel moment frame and bracing panels compound structures are suitable systems for medium-height resistant skeletons due to their desirable ductility along with high rigidity when facing large dynamic forces caused by earthquakes.
Parsa Khazaei Rad, Ali Mortazavi, Afshin Meshkat-Dini   +2 more
doaj   +1 more source

Heart-Ankle Pulse Wave Velocity Is Superior to Brachial-Ankle Pulse Wave Velocity in Detecting Aldosterone-Induced Arterial Stiffness

Biomedicines, 2021
Primary aldosteronism (PA) is associated with higher arterial stiffness compared to essential hypertension (EH). However, few studies have compared different pulse wave velocity (PWV) parameters to detect aldosterone-induced arterial stiffness.
Zheng-Wei Chen, Chien-Ting Pan, Cheng-Hsuan Tsai, Yi-Yao Chang, Chin-Chen Chang, Bo-Ching Lee, Yu-Wei Chiu, Wei-Chieh Huang, Yu-Li Lin, Vin-Cent Wu, Chi-Sheng Hung, Che-Wei Liao, Yen-Hung Lin, on behalf of TAIPAI Study Group   +13 more
doaj   +1 more source

Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste [PDF]

, 2008
In this paper, the applicability of the ultrasonic wave transmission method to estimate the initial setting time of an arbitrary cement paste is discussed. Ultrasonic pulse velocity measurements were fully automated and measured continuously.
Chotard, Franci Kavčič, Goran Turk, Gregor Trtnik, Grosse, Hewlett, Kamada, Keating, Krauss, Lee, M Sayers, Rapoport, Reinhardt, Sun, Valič, Violeta Bokan Bosiljkov, Voigt, Voigt, Voigt, Voigt   +19 more
core   +2 more sources

Shake Table Test of Long Span Cable-Stayed Bridge Subjected to Near-Fault Ground Motions Considering Velocity Pulse Effect and Non-Uniform Excitation

Applied Sciences, 2020
This paper presents the results of shake table tests of a scaled long span cable-stayed bridge (CSB). The design principles of the scaled CSB are first introduced. The first six in-plane modes are then identified by the stochastic subspace identification
Chao Zhang, Guanghui Fu, Zhichao Lai, Xiuli Du, Piguang Wang, Huihui Dong, Hongyu Jia   +6 more
doaj   +1 more source

Parametric Frequency Conversion of Short Optical Pulses Controlled by a CW Background [PDF]

, 2007
We predict that parametric sum-frequency generation of an ultra-short pulse may result from the mixing of an ultra-short optical pulse with a quasi-continuous wave control.
Baronio, Fabio, Conforti, Matteo, Degasperis, Antonio, Wabnitz, Stefan   +3 more
core   +4 more sources

Assessment of pulse wave velocity

Artery Research, 2008
Measurement of pulse wave velocity is of increasing importance for assessment of arterial stiffness and risk evaluation. Different techniques are available, based either on pressure, distension or Doppler waveforms.
Pierre Boutouyrie, Marie Briet, Cédric Collin, Sebastian Vermeersch, Bruno Pannier   +4 more
doaj   +1 more source

Different circadian patterns of arterial stiffness are responsible for increased cardiovascular mortality in hemodialyzed patients

Physiological Reports, 2021
We hypothesized that volume changes during 48‐h are associated with different circadian patterns of arterial stiffness on non‐dialysis day compared to dialysis day and that the night‐time increase of arterial stiffness is associated with higher mortality.
Vedran Premužić, Bojan Jelaković
doaj   +1 more source