Results 31 to 40 of about 926,093 (348)
Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing. [PDF]
PLoS 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
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Xenon excimer emission from pulsed high-pressure capillary microdischarges [PDF]
, 2007 Intense xenon vacuum ultraviolet (VUV) emission is observed from a high-pressure capillary cathode microdischarge in direct current operation, by superimposing a high-voltage pulse of 50 ns duration.
Frank, Klaus +4 more
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Picosecond ionization dynamics in femtosecond filaments at high pressures [PDF]
, 2017 We investigate the plasma dynamics inside a femtosecond-pulse-induced filament generated in an argon gas for a wide range of pressures up to 60 bar. At higher pressures, we observe ionization immediately following a pulse, with up to a threefold increase
Gaeta, AL +9 more
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Applied Sciences, 2022 With the emergence of the metaverse and other human–computer interaction technologies, promising applications such as medical palpation training are growing for training and education purposes.
Dong-Jun Kim +4 more
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Micromachines, 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
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A continuous discharge improves the performance of the Cu/CuCl double pulse laser [PDF]
, 1979 A continuous glow discharge was applied to a Cu/CuCl double pulse laser. Maximum laser pulse energy was observed to increase as much as 35 percent at low buffer gas pressure and 3.5 percent at optimum buffer gas pressure.
Culick, F. E. C., Kushner, M. J.
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PLoS ONE, 2015 Abdominal aortic aneurysm (AAA) is a disease of the aortic wall, which can progress to catastrophic rupture. Assessment of mechanical characteristics of AAA, such as aortic distensibility, may provide important insights to help identify at-risk patients ...
Christopher M Haggerty +5 more
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Biomimetics, 2023 Micro-electro-mechanical system (MEMS) pressure sensors play a significant role in pulse wave acquisition. However, existing MEMS pulse pressure sensors bound with a flexible substrate by gold wire are vulnerable to crush fractures, leading to sensor ...
Xiaoxiao Kang +8 more
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Sensors, 2020 The measurement and analysis of the arterial pulse wave provides information about the state of vascular health. When measuring blood pressure according to Riva-Rocci, the systolic and diastolic blood pressure is measured non-invasively with an ...
Horst Hellbrück +3 more
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Blood Pressure Estimation by Photoplethysmogram Decomposition into Hyperbolic Secant Waves
Applied Sciences, 2022 Photoplethysmographic (PPG) pulses contain information about cardiovascular parameters. In particular, blood pressure can be estimated using PPG pulse decomposition analysis, which assumes that a PPG pulse is composed of the original heart ejection blood
Takumi Nagasawa +7 more
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