Results 161 to 170 of about 896,915 (412)

Ultrafast Laser Synthesis of Zeolites

Advanced Materials, EarlyView.
The study presents a novel ultrafast laser‐driven synthesis technique for zeolites directly in liquid. Laser pulses create a microscopic reactor that controls reaction kinetics at femto‐ and picosecond timescales. Nonlinear light‐matter interactions drive nucleation and growth, allowing the process to be paused at any stage of self‐assembly.
Sezin Galioglu, Mehdi Hagverdiyev, Meryem M. Doğan, Özgün Yavuz, Ü. Seleme Nizam, Ghaith Makey, Aladin Şura, Mesut Laçin, Burcu Akata Kurç, Parviz Elahi, F. Ömer Ilday, Serim Ilday   +11 more
wiley   +1 more source

Comparing the effect of moderate intensity exercise on arterial stiffness in resistance trained athletes, endurance trained athletes and sedentary controls: A cross-sectional observational study

Artery Research, 2013
Background: Arterial stiffness is an independent risk factor for cardiovascular disease. There has been no previous research comparing the acute changes to arterial stiffness following aerobic exercise in different groups of athletes.
Bhupinder Hoonjan, Rajdip Dulai, Zakariya Ahmed, Alice Lucey, Richard Twycross-Lewis, Dylan Morrissey, Stephen E. Greenwald   +6 more
doaj   +1 more source

PULSE WAVE VELOCITY DETERMINANTS IN CHILDREN

Journal of Hypertension, 2019
Objective:Arterial stiffness, measured by pulse wave velocity, is an independent predictor of cardiovascular events and mortality in adults. Recent studies have demonstrated an association between higher levels of blood pressure in youth and adverse changes in measures of vascular structure and ...
Pedro P. Cunha, M. Rocha, F. Gonçalves, M. Formigo, Nuno Formigo, Carolina Silva, S. Freitas, Cristina Cunha, L. Castro, Jorge Cotter, C. Neves, Maria J. Cotter   +11 more
openaire   +3 more sources

Initial Validation Of Withings Pulse Wave Velocity And Body Composition Scale [PDF]

, 2017
Mobile devices, wearable technology, smartphone apps, and home fitness tracking have become popular to monitor personal health. While cardiovascular diseases are the leading cause of mortality, these devices have become a part of people’s lives as they ...
Agrawal, Aakriti, NC DOCKS at Appalachian State University   +1 more
core  

Universal Approach to Optimal Photon Storage in Atomic Media

, 2007
We present a universal physical picture for describing storage and retrieval of photon wave packets in a Lambda-type atomic medium. This physical picture encompasses a variety of different approaches to pulse storage ranging from adiabatic reduction of ...
Alexey V. Gorshkov, Anders S. Sørensen, Axel André, L. S. Pontryagin, Michael Fleischhauer, Mikhail D. Lukin, P. R. Hemmer   +6 more
core   +1 more source

Van Der Waals Hybrid Integration of 2D Semimetals for Broadband Photodetection

Advanced Materials, EarlyView.
Advanced broadband photodetector technologies are essential for military and civilian applications. 2D semimetals, with their gapless band structures, high mobility, and topological protection, offer great promise for broadband PDs. This study reviews the latest advancements in broadband PDs utilizing heterostructures that combine 2D semimetals with ...
Xue Li, Kunxuan Liu, Di Wu, Pei Lin, Zhifeng Shi, Xinjian Li, Longhui Zeng, Yang Chai, Shu Ping Lau, Yuen Hong Tsang   +9 more
wiley   +1 more source

Tree-wave mixing of ordinary and backward electromagnetic waves: extraordinary transients [PDF]

arXiv, 2016
Three-wave mixing of ordinary and backward electromagnetic waves in pulsed regime is investigated in the metamaterials, which enable co-existence and phase matching of such waves. It is shown that opposite direction of phase velocity and energy flux in backward waves gives rise to extraordinary transient processes in greatly enhanced optical parametric
arxiv  

Carrier-envelope phase dependence in single-cycle laser pulse propagation with the inclusion of counter-rotating terms

, 2012
We focus on the propagation properties of a single-cycle laser pulse through a two-level medium by numerically solving the full-wave Maxwell-Bloch equations.
Cui N, Kiffner M, Mihai A Macovei, Ni Cui, Niu Y P, Wegener M   +5 more
core   +1 more source

Single‐Layer Spin‐Orbit‐Torque Magnetization Switching Due to Spin Berry Curvature Generated by Minute Spontaneous Atomic Displacement in a Weyl Oxide

Advanced Materials, EarlyView.
Single‐layer magnetization switching with a small critical current density of ≈106 A cm−2 is demonstrated. The strong intrinsic spin Hall effect, causing the switching, is induced by the synergy of the inherent spin‐orbit coupling and the spontaneous oxygen octahedral rotation in SrRuO3.The findings highlight the immense potential for realizing ...
Hiroto Horiuchi, Yasufumi Araki, Yuki K. Wakabayashi, Jun'ichi Ieda, Michihiko Yamanouchi, Yukio Sato, Shingo Kaneta‐Takada, Yoshitaka Taniyasu, Hideki Yamamoto, Yoshiharu Krockenberger, Masaaki Tanaka, Shinobu Ohya   +11 more
wiley   +1 more source

Higher order dispersion in the propagation of a gravity wave packet [PDF]

To the first order of approximation, the complex amplitude of a wave packet in an anisotropic and dispersive medium is convected with the group of velocity. However, a gravity wave is a vector wave.
Dong, B., Yeh, K. C.
core   +1 more source