Results 11 to 20 of about 129,657 (313)

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

open access: yesSAGE 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   +6 more
doaj   +3 more sources

Global distributions of age- and sex-related arterial stiffness: systematic review and meta-analysis of 167 studies with 509,743 participants [PDF]

open access: yes, 2023
Background: Arterial stiffening is central to the vascular ageing process and a powerful predictor and cause of diverse vascular pathologies and mortality.
Kiechl S   +7 more
core   +1 more source

P-Delta Effects on Nonlinear Seismic Behavior of Steel Moment-Resisting Frame Structures Subjected to Near-Fault and Far-Fault Ground Motions

open access: yesBuildings, 2022
This paper presents a comparison of P-Delta effects on the nonlinear seismic behavior of the steel moment-resisting frame structures (MRFs) subjected to near-fault and far-fault ground motions.
Hu Cheng   +5 more
doaj   +1 more source

VELOCITY OF TRANSMISSION OF THE PULSE-WAVE [PDF]

open access: yesThe Lancet, 1922
n ...
Bramwell, J. Crighton, Hill, A. V.
openaire   +2 more sources

Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels [PDF]

open access: yesJournal of Structural and Construction Engineering, 2020
In this research, the seismic performance of 5story buildings having dual systems of moment frame and chevron bracings, chevron panels along with zipper columns, inverted chevron panels, inverted chevron panels along with zipper columns is evaluated ...
Ramin Madani   +2 more
doaj   +1 more source

Seismic Behavior of a Bridge with New Composite Tall Piers under Near-Fault Ground Motion Conditions

open access: yesApplied Sciences, 2020
Currently, the seismic designs of reinforced concrete (RC) bridges with tall piers are often accomplished following the ductility-based seismic design method.
Zhehan Cai   +4 more
doaj   +1 more source

Relationship Between Asperities and Velocity Pulse Generation Mechanism

open access: yesFrontiers in Earth Science, 2022
Near-fault ground motion records often capture instances of pulse-like behavior, where a burst of energy is expressed as large wave amplitude that occur over short time.
Lu Han   +4 more
doaj   +1 more source

Hemodialysis Parameters and Pulse Wave Velocity

open access: yesInternational Journal of Applied & Basic Medical Research, 2022
Abstract Aim: The study aimed to evaluate the acute effect of ultrafiltration on the mechanical properties of the aorta using brachial-ankle pulse wave velocity (PWV) before and after hemodialysis (HD). Patients and Methods: This study included 80 patients who were on a ...
Miseljic, Sanja   +9 more
openaire   +2 more sources

1979年帝王谷地震速度脉冲型地震动的识别和初步讨论

open access: yesDizhen xuebao, 2022
以1979年MW6.5帝王谷地震为例,比较了小波变换法、峰点法(PPM)和零点法(ZVPM)识别近断层速度脉冲型强震记录的能力,三种方法识别出的脉冲峰值基本一致,脉冲周期略有差别。为分析速度脉冲的产生机制,包括产生时间、位置以及凹凸体的影响,借助频率-波数域格林函数法(FK法)合成近断层宽频带地震动,采用峰点法逐步识别各子源地震动叠加过程中产生的速度脉冲。通过时频方法分析叠加过程中子源地震动频率成分的变化,分析凹凸体和台站的空间关系对脉冲产生的影响,初步探讨近断层速度脉冲的产生机制。
Lu Han   +3 more
doaj   +1 more source

Correlation of Schmidt Hammer Rebound Numbers with Ultrasonic Pulse Velocity and Slake Durability Index of Dolomitic Limestone of Khyber, North Pakistan

open access: yesInternational Journal of Economic and Environment Geology, 2022
The ultrasonic pulse velocity and slake durability index are the indirect techniques used widely for rock strength determination. Various experimental studies like slake durability apparatus, ultrasonic pulse velocity and ...
Naeem Abbasi   +3 more
doaj   +1 more source

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