Results 101 to 110 of about 69,936 (307)

A 36 channel x 10 GHz spectrally sliced pulse source based on supercontinuum generation in normally dispersive highly nonlinear holey fibre [PDF]

open access: yes, 2003
We demonstrate a spectrally sliced pulse source which utilizes supercontinuum generated in a normally dispersive holey fiber and spectral slicing in an arrayed waveguide grating.
Furusawa, K.   +11 more
core   +1 more source

Pulse wave propagation rate and dynamics of matrix metalloproteinase in patients with myocardial infarction and arterial hypertension in the presence or absence of diabetes mellitus

open access: yesМедицинский вестник Юга России
Objective: to study the pulse wave propagation rate and the level of matrix metalloproteinase type 9 in patients with ST-segment elevation myocardial infarction who underwent percutaneous coronary intervention in the presence of hypertension and diabetes
V. A. Suroedov   +3 more
doaj   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Long pulse delays in thin metamaterial slabs [PDF]

open access: yes, 2007
We provide experimental evidence that an electromagnetic pulse can be significantly delayed with minimum loss and distortion, while propagating through a new type of planar meta-materials that supports modes weakly coupled to free-space radiation ("dark ...
Fedotov, Vassili A.   +7 more
core   +1 more source

Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures

open access: yesAdvanced Materials, EarlyView.
Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin   +4 more
wiley   +1 more source

Factors associated with arterial stiffness in children aged 9-10 years

open access: yesRevista de Saúde Pública, 2015
OBJECTIVE To analyze the factors associated with stiffness of the great arteries in prepubertal children. METHODS This study with convenience sample of 231 schoolchildren aged 9-10 years enrolled in public and private schools in Vitória, ES, Southeastern
Milena Santos Batista   +4 more
doaj   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

open access: yesAdvanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford   +9 more
wiley   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Arterial Stiffness Measured as Pulse Wave Velocity is Highly Correlated with Coronary Atherosclerosis in Asymptomatic Patients [PDF]

open access: yes, 2012
[[abstract]]Aim: Carotid-femoral pulse wave velocity is a well-known predictor of all-cause and cardiovascular mortality. Few studies have evaluated the relationship between brachial-ankle pulse wave velocity (ba-PWV) and coronary artery disease.
Chiu-Shong Liu;Chia-Ing Li;Chuen-Ming Shih;Wen-Yuan Lin;Chih-Hsueh Lin;Shih-Wei Lai;Tsai-Chung Li;Cheng-Chieh Lin
core  

Analysis of pulse-wave propagation characteristics in abdominal aortic sclerosis disease

open access: yesTheoretical and Applied Mechanics Letters
In this work, a bidirectional fluid‒structure coupling finite element analysis model of the abdominal aorta was established, with the various vascular elastic modulus as the main parameters for atherosclerosis, taking into consideration blood's dynamic ...
Xuehang Sun   +5 more
doaj   +1 more source

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