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Strain engineering is critical to the performance enhancement of electronic and thermoelectric devices because of its influence on the material thermal conductivity. However, current experiments cannot probe the detailed physics of the…

材料科学 · 物理学 2021-01-27 Yandong Sun , Yanguang Zhou , Ramya Gurunathan , Jin-Yu Zhang , Ming Hu , Wei Liu , Ben Xu , G. Jeffrey Snyder

We develop a dielectric matrix and analyze plasmon dispersion in strongly coupled charged-particle bilayers in the quantum domain. The formulation is based on the classical quasi-localized charge approximation (QLCA) and extends the QLCA…

其他凝聚态物理 · 物理学 2009-11-10 Kenneth I. Golden , Hania Mahassen , Gabor J. Kalman , Gaetano Senatore , F. Rapisarda

Surface electromyography (sEMG) recordings can be influenced by electrocardiogram (ECG) signals when the muscle being monitored is close to the heart. Several existing methods use signal-processing-based approaches, such as high-pass filter…

信号处理 · 电气工程与系统科学 2024-04-02 Yu-Tung Liu , Kuan-Chen Wang , Kai-Chun Liu , Sheng-Yu Peng , Yu Tsao

The pulse-recloser uses pulse testing technology to verify that the line is clear of faults before initiating a reclose operation, which significantly reduces stress on the system components (e.g. substation transformers) and voltage sags…

系统与控制 · 计算机科学 2017-06-20 M. E. Raoufat , A. Taalimi , K. Tomsovic , R. Hay

The Polynomial Chaos Expansion (PCE) technique recovers a finite second order random variable exploiting suitable linear combinations of orthogonal polynomials which are functions of a given stochas- tic quantity {\xi}, hence acting as a…

计算金融 · 定量金融 2016-10-31 Luca Di Persio , Michele Bonollo , Gregorio Pellegrini

In the field of fundamental plasma waves, direct observation of electron-acoustic wave (EAW) propagation in laboratory plasmas remains a challenging problem, mainly because of heavy damping. In the MaPLE device, the wave is observed and…

等离子体物理 · 物理学 2017-06-28 Satyajit Chowdhury , Subir Biswas , Nikhil Chakrabarti , Rabindranath Pal

Several centimeters below the skin lie multiple biomarkers, such as glucose, oxygenation, and blood flow. Monitoring these biomarkers regularly and in a non-invasive manner would enable early insight into metabolic status and vascular…

医学物理 · 物理学 2025-10-30 Talia Xu , Caitlin Smith , Charles Lo , Jami Shepherd , Gijs van Soest , Marco Zuniga

Sampling efficiently from a target unnormalized probability density remains a core challenge, with relevance across countless high-impact scientific applications. A promising approach towards this challenge is the design of amortized…

We present a Bayesian analysis of data from the FIELDS instrument on board the Parker Solar Probe (PSP) spacecraft with the aim of constraining low frequency ($\lesssim$ 6 MHz) sky in preparation for several upcoming lunar-based…

星系天体物理 · 物理学 2023-03-29 Neil Bassett , David Rapetti , Bang D. Nhan , Brent Page , Jack O. Burns , Marc Pulupa , Stuart D. Bale

The spatial non-uniformity of the electric field in air discharges, such as streamers, can influence the accuracy of spectroscopic diagnostic methods and hence the estimation of the peak electric field. In this work, we use a…

大气与海洋物理 · 物理学 2019-10-15 A. Malagón-Romero , F. J. Pérez-Invernón , A. Luque , F. J. Gordillo-Vázquez

We discuss in depth the validity and limitations of a theoretical scheme to evaluate photo-electron spectra (PES) through collecting the phase oscillations at a given measuring point. Problems appear if the laser pulse is still active when…

原子与分子团簇 · 物理学 2012-06-19 P. M. Dinh , P. Romaniello , P. -G. Reinhard , E. Suraud

Collective excitations in topologically non-trivial systems have attracted considerable attention in recent years. Here we study plasmons in the Su-Schrieffer-Heeger model whose low-energy electronic band is only partially filled, such that…

材料科学 · 物理学 2021-07-28 Zhihao Jiang , Henning Schlömer , Stephan Haas

A number of techniques with different degrees of accuracies have been devised for the measurement of acoustic wave attenuation in solids and liquids. Still, a wide variation is observed in the attenuation values in different materials…

仪器与探测器 · 物理学 2018-01-18 Barnana Pal

Pump-and-probe photoelectron spectroscopy (PES) with femtosecond pulsed sources opens new perspectives in the investigation of the ultrafast dynamics of physical and chemical processes at the surfaces and interfaces of solids. Nevertheless,…

材料科学 · 物理学 2016-03-30 Adriano Verna , Giorgia Greco , Valerio Lollobrigida , Francesco Offi , Giovanni Stefani

Polynomial chaos expansion (PCE) is a powerful surrogate model-based reliability analysis method. Generally, a PCE model with a higher expansion order is usually required to obtain an accurate surrogate model for some complex non-linear…

机器学习 · 计算机科学 2022-04-05 Xiaohu Zheng , Wen Yao , Yunyang Zhang , Xiaoya Zhang

We investigate solution methods for large-scale inverse problems governed by partial differential equations (PDEs) via Bayesian inference. The Bayesian framework provides a statistical setting to infer uncertain parameters from noisy…

应用统计 · 统计学 2023-02-08 Mina Karimi , Mehrdad Massoudi , Kaushik Dayal , Matteo Pozzi

This paper is concerned with the analysis of time-harmonic electromagnetic scattering from plasmonic inclusions in the finite frequency regime beyond the quasi-static approximation. The electric permittivity and magnetic permeability in the…

偏微分方程分析 · 数学 2019-01-29 Hongjie Li , Shanqiang Li , Hongyu Liu , Xianchao Wang

We present a novel population-based Bayesian inference approach to model the average and population variance of spatial distribution of a set of observables from ensemble analysis of low signal-to-noise ratio measurements. The method…

宇宙学与河外天体物理 · 物理学 2020-12-23 Arya Farahi , Daisuke Nagai , Yang Chen

The build up of polyelectrolyte multilayers (PEMs) was observed by a silicon-on-insulator (SOI) based thin film resistor. Differently charged polyelectrolytes adsorbing to the sensor surface result in defined potential shifts, which…

软凝聚态物质 · 物理学 2007-05-23 Petra A. Neff , Ali Naji , Christof Ecker , Bert Nickel , Regine von Klitzing , Andreas R. Bausch

A finite-element model is presented for numerical simulation in three dimensions of acoustophoresis of suspended microparticles in a microchannel embedded in a polymer chip and driven by an attached piezoelectric transducer at MHz…

流体动力学 · 物理学 2021-07-30 Fabian Lickert , Mathias Ohlin , Henrik Bruus , Pelle Ohlsson