Results 151 to 160 of about 104,311 (309)

Aortic backward waves derived from wave separation analysis, and end-organ changes [PDF]

, 2016
Dissertation submitted to the Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, in fulfillment of the requirements for the degree of Master of Science in Medicine Johannesburg, 2016Aortic backward (reflected) waves are major ...
Ballim, Imraan
core  

Measurement of pressure dependent variations in local pulse wave velocity within a cardiac cycle from forward travelling pulse waves

Scientific Reports
The local pulse wave velocity (PWV) from large elastic arteries and its pressure-dependent changes within a cardiac cycle are potential biomarkers for cardiovascular risk stratification.
Rahul Manoj, Kiran V. Raj, P. M. Nabeel, Mohanasankar Sivaprakasam, Jayaraj Joseph   +4 more
doaj   +1 more source

Interface Effects in Ultrathin Silicon on Insulator Films

Advanced Functional Materials, EarlyView.
This work establishes a systematic framework to discriminate how bulk and interface phenomena affect charge transport in ultrathin P‐doped silicon‐on‐insulator (SOI) films. For Si films below 15 nm, electrical characterization demonstrates that interface states drive charge transport, shifting the metal‐insulator transition (MIT) critical dopant ...
Andrea Pulici, Gabriele Seguini, Fabiana Taglietti, Roman Gumeniuk, Riccardo Chiarcos, Michele Laus, Johannes Heitmann, Marco Fanciulli, Michele Perego   +8 more
wiley   +1 more source

Bayesian Separation of Lamb Wave Signatures [PDF]

, 2001
A persistent problem in the analysis of Lamb wave signatures in experimental data is the fact that several different modes appear simultaneously in the signal. The modes overlap in both the frequency and time domains. Attempts to separate the overlapping
Klein, Marvin B., Pouet, Bruno, Kercel, Stephen W.   +2 more
core  

Engineering MnNiPx Cathode via Dual Role of Mn: Simultaneous Enhancement of Activity and Intermittent Operation Durability

Advanced Functional Materials, EarlyView.
Engineering MnNiPx cathodes through the dual role of Mn simultaneously improves hydrogen evolution reaction activity and intermittent‐operation durability. Mn preferentially oxidizes to protect Ni–P sites from irreversible oxidation, while metallic Mn incorporation enhances the HER kinetics of Ni–P active layer.
Ik‐Sun Kim, Jungwoo Choi, Sechan Lee, Jung Eun Park, Changsoo Lee, Jongsu Seo, Ji Hee Kwon, Gisu Doo, Hyeonjung Park, Dongju Lee, Won‐Chul Cho, Changhee Kim, Nosang Vincent Myung, Sang Soo Han, Byeong‐Seon An, MinJoong Kim, Hyun‐Seok Cho   +16 more
wiley   +1 more source

The measurement of the in situ compressional wave properties of marine sediments [PDF]

, 2007
Geoacoustic inversion requires a generic knowledge of the frequency-dependence of compressional wave properties in marine sediments, the nature of which is still under debate. The use of in situ probes to measure sediment acoustic properties introduces a
Dix, J.K., Best, A.I., Leighton, T.G., White, P.R., Bull, J.M., Harris, A., Robb, G.B.N.   +6 more
core  

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

Advanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan, Xinyu Liu, Yuguo Zhao, Hanwen Jian, Huan Zhou, Riyi Zhang, Dong Wang, Peter Schaaf, Lihua Wang, Guangsheng Guo, Xiayan Wang   +10 more
wiley   +1 more source

Topographically forced long waves on a sheared coastal current. Part 2. Finite amplitude waves [PDF]

, 1997
This paper analyses the finite-amplitude flow of a constant-vorticity current past coastal topography in the long-wave limit. A forced finite-amplitude long-wave equation is derived to describe the evolution of the vorticity interface.
Johnson, ER, Clarke, SR
core  

Method for Setting Artificial Boundary Used in Time History Analysis of Underground Caverns at Great Depth

工程科学与技术, 2012
:The issues of choosing proper intercepted range of dynamic analysis model and its artificial boundary setting were discussed. Based on the distribution characteristics of seismic wave field of underground caverns, the setting method for artificial ...
doaj  

Submicron Metasurface Reconfigured Multiband Smart Windows

Advanced Functional Materials, EarlyView.
This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang, Shancheng Wang, Bin Li, Xinyi Tian, Rong Liu, Jian Chen, Zhendong Dai, Shouqin Tian, Yi Long   +8 more
wiley   +1 more source