Results 21 to 30 of about 925,843 (350)

Life events and acute cardiovascular reactions to mental stress: a cohort study [PDF]

open access: yes, 2005
Objective: This study addressed the issue of whether frequent exposure to life events is associated with aggravation or blunting of cardiovascular reactions to acute mental stress.
Carroll, Douglas   +4 more
core   +1 more source

Photoacoustic generation of focused quasi-unipolar pressure pulses [PDF]

open access: yes, 2010
The photoacoustic effect was employed to generate short-duration quasi-unipolar acoustic pressure pulses in both planar and spherically focused geometries.
Maslov, Konstantin   +2 more
core   +1 more source

Association of Pulse Pressure Difference and Diabetes Mellitus in Chinese People: A Cohort Study

open access: yesInternational Journal of General Medicine, 2021
Chunlei Wu, Denhua Ma, Yu Chen Department of Cardiac Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, 317000, People’s Republic of ChinaCorrespondence: Yu Chen People’s Republic of ChinaEmail chenyu5835@126.
Wu C, Ma D, Chen Y
doaj  

Formation Principle and Characteristics of Self-Supercharging Pulsed Water Jet

open access: yesChinese Journal of Mechanical Engineering, 2022
High-pressure pulsed water jet technology has considerable development potential in the field of rock fragmentation. To overcome the shortcomings of existing pulsed jets, a self-supercharging pulsed water jet (SSPWJ) generation method is proposed, which ...
Zhaolong Ge   +6 more
doaj   +1 more source

Photon locking [PDF]

open access: yes, 1986
A novel observation of photon locking—the optical analog of spin locking—is reported, demonstrating the applicability of phase-coherent pulse sequences.
Sleva, E. T.   +2 more
core   +1 more source

Shock-induced collapse of a gas bubble in shockwave lithotripsy [PDF]

open access: yes, 2008
The shock-induced collapse of a pre-existing nucleus near a solid surface in the focal region of a lithotripter is investigated. The entire flow field of the collapse of a single gas bubble subjected to a lithotripter pulse is simulated using a high ...
Colonius, Tim, Johnsen, Eric
core   +2 more sources

Numerical study of the collapse of a bubble subjected to a lithotripter pulse [PDF]

open access: yes, 2006
The collapse of a bubble subjected to a lithotripter pulse is studied numerically. The goal is to record the pressure exerted along the stone, as a measure of potential stone damage. It is found that the pressure due to buble collapse is much larger than
Colonius, Tim, Johnsen, Eric
core   +1 more source

High Pulse Pressure

open access: yesJournal of the American College of Cardiology, 2019
International ...
Harbaoui, Brahim   +2 more
openaire   +2 more sources

Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing. [PDF]

open access: yesPLoS ONE, 2017
The shear swirling flow vibration cementing (SSFVC) technique rotates the downhole eccentric cascade by circulating cementing fluid. It makes the casing eccentrically revolve at high speed around the borehole axis.
Zhihua Cui, Chi Ai, Lei Lv, Fangxian Yin
doaj   +1 more source

Extraction and Evaluation of Discriminative Indexes of the Wearing Condition for High-Precision Blood Pressure Pulse Wave Measurement

open access: yesMicromachines, 2022
In this paper, we report a new discriminant index for evaluating the wearing condition of a blood pressure pulse wave measurement device with small variability.
Yosuke Osawa, Tetsuji Dohi
doaj   +1 more source

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