Results 81 to 90 of about 2,071,116 (352)

Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles

Advanced Functional Materials, EarlyView.
Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati, Yoann Lalatonne, Cédric Chauvierre   +2 more
wiley   +1 more source

A survey on filtered-x least mean square-based active noise control systems with emphasis on reducing computational complexity

EURASIP Journal on Advances in Signal Processing, 2023
Active noise control (ANC) is gaining ever-increasing attention owing to its powerful ability to attenuate low-frequency noise. The computational complexity of an ANC system may directly affect its computational efficiency, control performance, and ...
Xiaolong Li, Wan Chen, Zhien Liu, Chihua Lu, Menglei Sun   +4 more
doaj   +1 more source

Robust and fast schemes in broadband active noise and vibration control [PDF]

, 2004
This thesis presents robust and fast active control algorithms for the suppression of broadband noise and vibration disturbances. Noise disturbances, e.g., generated by engines in airplanes and cars or by air ow, can be reduced by means of passive or ...
Fraanje, Petrus Rufus
core   +1 more source

Effect of Nyquist Noise on the Nyquist Dephasing Rate in 2d Electron Systems

, 2001
We measure the effect of externally applied broadband Nyquist noise on the intrinsic Nyquist dephasing rate of electrons in a two-dimensional electron gas at low temperatures.
A. Huibers, A. Völker, A.B. Gougam, B.L. Altshuler, B.L. Altshuler, D.S. Golubev, D.S. Golubev, D.S. Golubev, D.S. Golubev, D.S. Golubev, D.S. Golubev, I. Aleiner, I. Aleiner, J. Liu, J. Liu, J. Liu, K.K. Choi, K.W. West, L.N. Pfeiffer, P. Mohanty, P. Mohanty, P. Mohanty, P.D. Dresselhaus, P.J. Burke, P.J. Burke, P.J. Burke, R.H. Koch, S. Hikami, S. Wang, S.A. Vitkalov, S.A. Vitkalov, V.E. Kravtsov   +31 more
core   +1 more source

Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection

Advanced Functional Materials, EarlyView.
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song, Lijie Wang, Jiayi Wang, Yafeng Xu, Renqian Zhou, Shulin Chen, Partha Maity, Peng Yuan, Yongcao Zhang, Bingyao Shao, Jian‐Xin Wang, Jun Yin, Ren‐Wu Huang, Youyou Yuan, Taimoor Ahmad, Osman M. Bakr, Omar F. Mohammed   +16 more
wiley   +1 more source

Broadband Noise Reduction of a Two-Stage Fan with Wavy Trailing-Edge Blades

Aerospace
In this paper, a numerical investigation is performed to study the broadband noise of a fan stage with wavy trailing-edge blades. A study of the wavelength and ratio of amplitude to wavelength (H/L) is conducted to better understand the noise reduction ...
Ruibiao Gao, Weijie Chen, Hang Tong, Jianxin Lian, Weiyang Qiao   +4 more
doaj   +1 more source

Identification of Noise Sources in a Realistic Turbofan Rotor Using Large Eddy Simulation

Acoustics, 2020
Large Eddy Simulation is performed using the NASA Source Diagnostic Test turbofan at approach conditions (62% of the design speed). The simulation is performed in a periodic domain containing one fan blade (rotor-alone configuration). The aerodynamic and
Pavel Kholodov, Stéphane Moreau
doaj   +1 more source

Computer-Aided Liner Optimization for BroadBand Noise [PDF]

10th AIAA/CEAS Aeroacoustics Conference, 2004
In this article the attenuation of broadband noise in an acoustically-lined circular-section duct is investigated. The aim is to predict how an axially segmented liner in∞uences the attenuation of broadband noise in an aero-engine intake. The sound fleld is modelled using a multi-modal representation, assuming an ensemble of uncorrelated modes over a ...
Lafronza, L., McAlpine, A., Keane, A.J., Astley, R.J.   +3 more
openaire   +2 more sources

Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna

Advanced Functional Materials, EarlyView.
We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz, Nicole Siegel, Guillermo Serrera, Javier González‐Colsa, Fangjia Zhu, Karol Kołątaj, Minoru Fujii, Hiroshi Sugimoto, Pablo Albella, Guillermo P. Acuna   +9 more
wiley   +1 more source

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

Advanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source