Results 81 to 90 of about 69,694 (307)

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

P120 DETERMINANTS OF BRACHIAL-ANKLE PULSE WAVE VELOCITY

Artery Research, 2018
It has been proven that aortic pulse wave velocity (aoPWV) the measure of arterial stiffness is a strong and independent predictor of both cardiovascular events and all-cause mortality.
Renata Bocskei, Bela Benczur, Attila Cziraki   +2 more
doaj   +1 more source

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

Advanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo, Masoud Mansouri, Carlos Garcia‐Fernandez, Daniel Sánchez‐Portal, Aran Garcia‐Lekue, Gustavo Ceballos, Aitor Mugarza   +6 more
wiley   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +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

Медицинский 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, A. A. Pirozhenko, L. A. Khaisheva, K. A. Khaishev   +3 more
doaj   +1 more source

Parametric estimation of pulse arrival time: a robust approach to pulse wave velocity

, 2009
Pulse wave velocity (PWV) is a surrogate of arterial stiffness and represents a non-invasive marker of cardiovascular risk. The non-invasive measurement of PWV requires tracking the arrival time of pressure pulses recorded in vivo, commonly referred to ...
Claudio Sartori, Solà, J., Rimoldi, S.F., Sartori, C., Philippe Renevey, Vetter, Rolf, Chételat, O., Solà, Josep, Josep Solà, Sartori, Claudio, Olivier Chételat, Chételat, Olivier, Stefano F Rimoldi, Vetter, R., Rolf Vetter, Renevey, P., Renevey, Philippe, Rimoldi, Stefano F   +17 more
core   +1 more source

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

, 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., Richardson, D., Z. Yusoff, Petropoulos, P., Richardson, D.J., Monro, T., D.J. Richardson, Yusoff, Z., Monro, T.M., P. Petropoulos, K. Furusawa, T.M. Monro   +11 more
core   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

Long pulse delays in thin metamaterial slabs [PDF]

, 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., Vassili A. Fedotov, Nikolay I. Zheludev, Sergey L. Prosvirnin, Papasimakis, Nikitas, Nikitas Papasimakis, Prosvirnin, Sergey L., Zheludev, Nikolay I.   +7 more
core   +1 more source

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

Advanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief, Swagato Sarkar, Anik Kumar Ghosh, Osvalds Verners, Kamal Kumar Meena, Su‐Hyeong Lee, Soosang Chae, Tobias A. F. König, Beate Krause, Andreas Fery, Mehmet Sait Özer, Anindya Nag, Amit Das   +12 more
wiley   +1 more source