Results 61 to 70 of about 432,453 (195)
Dizhen xuebao基于振动台试验，探讨了速度脉冲对综合管廊动力响应的影响，重点阐明了地震动速度脉冲特性如何影响综合管廊和周围土壤的地震行为。选取具有速度脉冲的实际地震动记录和合成的与实际地震动记录具有相同反应谱的无速度脉冲地震动时程，同时将其加速度幅值分别调整为0.10g，0.20g，0.30g作为输入，设计并开展了地震动纵向输入下的综合管廊振动台试验。基于试验数据分析了场地土体的地震反应变化规律、综合管廊结构的地震响应特征和土-结构相互作用效应。研究结果表明：① 土体在连续试验加载下结构发生变化 ...
Jian Chu +5 more
doaj +1 more source
Scientific Reports, 2021 Recent evidence suggests that cellular perturbations play an important role in the pathogenesis of cardiovascular diseases. Therefore, we analyzed the association between the levels of urinary metabolites and arterial stiffness. Our cross-sectional study
Ji-Hee Haam +8 more
doaj +1 more source
Pulse Propagation in Chains with Nonlinear Interactions
, 2003 Pulse propagation in nonlinear arrays continues to be of interest because it provides a possible mechanism for energy transfer with little dispersion.
A. Rosas +9 more
core +1 more source
Fast domain wall propagation under an optimal field pulse in magnetic nanowires [PDF]
, 2010 We investigate field-driven domain wall (DW) propagation in magnetic nanowires in the framework of the Landau-Lifshitz-Gilbert equation. We propose a new strategy to speed up the DW motion in a uniaxial magnetic nanowire by using an optimal space ...
A. P. Malozemoff +2 more
core +2 more sources
P6.01 IMPLANTABLE PULSE WAVE VELOCITY SENSOR
Artery Research, 2013 In case of vascular weakness or thrombosis stents are implanted and brace vessels from the inside to assure the proper blood flow. A widespread method to monitor the state of blood vessels in terms of their stiffness and diameter is to measure the pulse ...
A. Domnich, J. Schaechtele
doaj +1 more source
Doppler cooling with coherent trains of laser pulses and tunable "velocity comb"
, 2011 We explore the possibility of decelerating and Doppler cooling of an ensemble of two-level atoms by a coherent train of short, non-overlapping laser pulses.
Andrei Derevianko +5 more
core +1 more source
Analysis of terahertz generation using tilted-pulse-fronts
, 2018 A 2-D spatio-temporal analysis of terahertz generation by optical rectification of tilted-pulse-fronts is presented. Closed form expressions of terahertz transients and spectra in two spatial dimensions are furnished in the undepleted limit. Importantly,
Kärtner, Franz X., Ravi, Koustuban
core +2 more sources
Tunneling-assisted impact ionization fronts in semiconductors [PDF]
, 2001 We propose a novel type of ionization front in layered semiconductor structures. The propagation is due to the interplay of band-to-band tunneling and impact ionization.
Alferov Zh. I. +18 more
core +4 more sources
Atmosphere, 2018 Velocity ambiguity is one of the main challenges in accurately measuring velocity for the future Geostationary Spaceborne Doppler Weather Radar (GSDWR) due to its short wavelength.
Xuehua Li +5 more
doaj +1 more source
PSR J1909-3744, a Binary Millisecond Pulsar with a Very Small Duty Cycle
, 2003 We report the discovery of PSR J1909-3744, a 2.95 millisecond pulsar in a nearly circular 1.53 day orbit. Its narrow pulse width of 43 microseconds allows pulse arrival times to be determined with great accuracy.
A. Hotan +8 more
core +2 more sources