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相关论文: Clarification of Basic Concepts for Electromagneti…

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In large-scale quantum-chemical calculations the electron-repulsion integral (ERI) tensor rapidly becomes the bottleneck in terms of memory and disk space. When an external finite magnetic field is employed, this problem becomes even more…

化学物理 · 物理学 2022-02-16 Simon Blaschke , Stella Stopkowicz

In this paper we develop an analytical framework for the study of electrochemical impedance of mixed ionic and electronic conductors (MIEC). The framework is based on first-principles and it features the coupling of electrochemical…

化学物理 · 物理学 2017-08-23 Francesco Ciucci , Yong Hao , David G. Goodwin

Approximate Symbol error rate (SER), outage probability and rate expressions are derived for receive diversity system employing optimum combining when both the desired and the interfering signals are subjected to Rician fading, for the…

信号处理 · 电气工程与系统科学 2019-05-10 Muralikrishnan Srinivasan , Sheetal Kalyani

The longitudinal spin-Seebeck effect (SSE) in magnetic insulator$|$non-magnetic metal heterostructures has been theoretically studied primarily with the assumption of an isotropic interfacial exchange coupling. Here, we present a general…

介观与纳米尺度物理 · 物理学 2020-01-15 Bowen Ma , Benedetta Flebus , Gregory A. Fiete

On semiconductor growth surfaces, surface reconstructions appear. Estimation of the reconstructed structures is essential for understanding and controlling growth phenomena. In this study, the stability of a mixture of two different surface…

The design of modular, passive, and static artificial metasurfaces to be used as electromagnetic skins (EMSs) of buildings for improving the coverage in urban millimeter-wave communication scenarios is addressed. Towards this end, an ad-hoc…

系统与控制 · 电气工程与系统科学 2022-11-23 Paolo Rocca , Pietro Da Rù , Nicola Anselmi , Marco Salucci , Giacomo Oliveri , Danilo Erricolo , Andrea Massa

Energy-based models (EBMs) are powerful probabilistic models, but suffer from intractable sampling and density evaluation due to the partition function. As a result, inference in EBMs relies on approximate sampling algorithms, leading to a…

机器学习 · 计算机科学 2020-01-10 Dieterich Lawson , George Tucker , Bo Dai , Rajesh Ranganath

The spin Seebeck effect (SSE) refers to the generation of a spin current as a result of a temperature gradient in magnetic materials including insulators. The SSE is applicable to thermoelectric generation because the thermally generated…

This paper studies a two-layer decoding method that mitigates inter-cell interference in multi-cell Massive MIMO systems. In layer one, each base station (BS) estimates the channels to intra-cell users and uses the estimates for local…

信息论 · 计算机科学 2019-03-19 Trinh Van Chien , Christopher Mollén , Emil Björnson

Scattering of electromagnetic (EM) waves by many small particles (bodies) embedded in a homogeneous medium is studied. Physical properties of the particles are described by their boundary impedances. The limiting equation is obtained for…

数学物理 · 物理学 2011-01-18 A. G. Ramm

The electron cyclotron emission (ECE) in fusion devices is non-trivial to model in detail at frequencies well below the fundamental resonance where the plasma is optically thin. However, doing so is important for evaluating the background…

The boundary element method (BEM) enables solving three-dimensional electromagnetic problems using a two-dimensional surface mesh, making it appealing for applications ranging from electrical interconnect analysis to the design of…

数值分析 · 数学 2021-12-14 Shashwat Sharma , Piero Triverio

We develop a simple and reliable analytical model that allows describing the electromagnetic response of all-dielectric metasurfaces consisting of a single-layer array of high-permittivity spherical particles. By combining Mie theory with a…

经典物理 · 物理学 2020-12-21 Alessio Monti , Andrea Alù , Alessandro Toscano , Filiberto Bilotti

Traditional state estimation (SE) methods that are based on nonlinear minimization of the sum of localized measurement error functionals are known to suffer from non-convergence and large residual errors. In this paper we propose an…

系统与控制 · 电气工程与系统科学 2020-09-01 Shimiao Li , Amritanshu Pandey , Soummya Kar , Larry Pileggi

Electromagnetic wave control using the concept of a reflecting surface is first studied as a near-field and a far-field problem. Using a secondary source present in a wireless communication environment, such as a backscatter tag, it is…

信号处理 · 电气工程与系统科学 2020-06-24 Okan Yurduseven , Stylianos D. Assimonis , Michail Matthaiou

We investigate wave amplification through the Electron Cyclotron Maser mechanism. We derive a semi-analytic approximation formula giving the frequencies at which the absorption coefficient is negative. The coefficients still need to be…

天体物理学 · 物理学 2007-05-23 Amnon Stupp

Due to its intrinsic ability to combat the double fading effect, the active intelligent reflective surface (IRS) becomes popular. The main feature of active IRS must be supplied by power, and the problem of how to allocate the total power…

信号处理 · 电气工程与系统科学 2024-01-23 Yifan Zhao , Xuehui Wang , Yan Wang , Xianpeng Wang , Zhilin Chen , Feng Shu , Cunhua Pan , Jiangzhou Wang

This paper considers the use of an intelligent reconfigurable surface (IRS) to aid wireless communication systems. The main goal is to compare this emerging technology with conventional decode-and-forward (DF) relaying. Unlike prior…

信息论 · 计算机科学 2022-03-16 Andrea De Jesus Torres , Luca Sanguinetti , Emil Björnson

We report a general macroscopic theory for the electrodynamic response of semi-infinite metals (SIMs). The theory includes the hitherto overlooked capacitive effects due to the finite spatial extension of a surface. The basic structure of…

介观与纳米尺度物理 · 物理学 2020-05-12 Hai-Yao Deng