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This paper uses an alternative approach to study the monochromatic plane wave propagation within dielectric and conductor linear media of plane-parallel-faces. This approach introduces the time-averaged Poynting vector modulus as field…

General Physics · Physics 2007-05-23 Alberto Lencina , Beatriz Ruiz , Pablo Vaveliuk

We present a linear mode analysis of the relativistic MHD equations in the presence of finite electrical conductivity. Starting from the fully relativistic covariant formulation, we derive the dispersion relation in the limit of small…

High Energy Astrophysical Phenomena · Physics 2018-10-17 A. Mignone , G. Mattia , G. Bodo

The key obstacle to achieving the full potential of the millimeter wave (mmWave) band has been the poor propagation characteristics of wireless signals in this band. One approach to overcome this issue is to use antennas that can support…

Signal Processing · Electrical Eng. & Systems 2017-10-25 Mojtaba Ahmadi Almasi , Hani Mehrpouyan , Vida Vakilian , Nader Behdad , Hamid Jafarkhani

In this paper, we present a new multiscale method which is capable of coupling atomistic and continuum domains for high frequency wave propagation analysis. The problem of non-physical wave reflection, which occurs due to the change in…

Computational Physics · Physics 2014-08-08 Amit K. Patra , S. Gopalakrishnan , Ranjan Ganguli

Transformer-based LLMs have achieved exceptional performance across a wide range of NLP tasks. However, the standard self-attention mechanism suffers from quadratic time complexity and linearly increased cache size. Sliding window attention…

Computation and Language · Computer Science 2025-01-03 Yixing Xu , Shivank Nag , Dong Li , Lu Tian , Emad Barsoum

Multiuser Multi-Packet Transmission (MPT) from an Access Point (AP) equipped with multiple antennas to multiple single-antenna nodes can be achieved by exploiting the spatial dimension of the channel. In this paper we present a queueing…

Networking and Internet Architecture · Computer Science 2013-10-22 Boris Bellalta , Azadeh Faridi , Jaume Barcelo , Vanesa Daza , Miquel Oliver

Planar Orthomode Transducers (OMTs) are commonly used for polarization measurements at millimeter wavelengths. We present an optical coupling study of an octave bandwidth planar OMT in circular waveguide based on 3D electromagnetic…

Instrumentation and Methods for Astrophysics · Physics 2022-09-02 Johannes Hubmayr , Jason E. Austermann , James A. Beall , Jake A. Connors , Shannon M. Duff , Jeffrey J. McMahon

Space-time modulation adds another powerful degree of freedom to the manipulation of classical wave systems. It opens the door for complex control of wave behavior beyond the reach of stationary systems, such as nonreciprocal wave transport…

Classical Physics · Physics 2019-11-06 Junfei Li , Xiaohui Zhu , Chen Shen , Xiuyuan Peng , Steven A. Cummer

Multimodal data are now prevailing in scientific research. A central question in multimodal integrative analysis is to understand how two data modalities associate and interact with each other given another modality or demographic…

Methodology · Statistics 2021-04-27 Lexin Li , Jing Zeng , Xin Zhang

A coupled pair of waveguides with refractive indices of different signs is considered. It is shown that the gap in the linear wave spectrum closes if these waves are amplitude modulated. To look for solitons as envelopes of exponentially…

Optics · Physics 2025-05-01 Shaykin Dmitriy

A dispersion equation for the interface waves has been derived for the interface of two cubic crystals in the plane perpendicular to [001]. A reasonable hypothesis has been made about the total number of the acoustic modes. Due to this…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 I. V. Ponomarev , A. L. Efros

This article proposes a source-independent method for detecting faults along Transmission Lines (TL) to reduce the protection issues arising from Inverter-Based Resources (IBRs). In the proposed method, high-frequency waves are sent from…

Applied Physics · Physics 2024-09-12 Reza Jalilzadeh Hamidi , Julio Rodriguez

A system using a non-linear multi-swept sine wave system is described which employs a multi-channel, multi-swept orthogonal waves, to separate channels and make multiple, simultaneous online/offline CO2 measurements. An analytic expression…

Atmospheric and Oceanic Physics · Physics 2013-04-30 Joel F. Campbell

In this paper, we explore perpetual, scalable, Low-powered Wide-area networks (LPWA). Specifically we focus on the uplink transmissions of non-orthogonal multiple access (NOMA)-based LPWA networks consisting of multiple self-powered nodes…

Signal Processing · Electrical Eng. & Systems 2021-01-01 Fatma Benkhelifa , Julie A. McCann

The basic ideas of a homotopy-based multiple-variable method is proposed and applied to investigate the nonlinear interactions of periodic traveling waves. Mathematically, this method does not depend upon any small physical parameters at…

Fluid Dynamics · Physics 2011-08-01 Shijun Liao

An orbital angular momentum (OAM) detection approach at microwave band is proposed. A transmittance function is exploited to model a transmissive metasurface. Then the metasurface is designed to convert an OAM wave to multiple waves, only…

Applied Physics · Physics 2017-12-12 Menglin L. N. Chen , Li Jun Jiang , Wei E. I. Sha

We present a numerical method for the analysis of mutual coupling effects in large, dense and irregular arrays with identical antennas. Building on the Method of Moments (MoM), our technique employs a Macro Basis Function (MBF) approach for…

Instrumentation and Methods for Astrophysics · Physics 2024-09-04 Quentin Gueuning , Eloy de Lera Acedo , Anthony Keith Brown , Christophe Craeye , Oscar O'Hara

The evolution toward the sixth-generation (6G) wireless networks has flexible reconfigurable antenna architectures capable of adapting their radiation characteristics to the surrounding environment. At the center-stage, while waveguide…

Signal Processing · Electrical Eng. & Systems 2025-12-05 Kaidi Wang , Zhiguo Ding , Lajos Hanzo

Simultaneous lightwave information and power transfer (SLIPT) is a potential way to meet the demands of sustainable power supply and high-rate data transfer in next-generation networks. Although resonant beam-based SLIPT (RB-SLIPT) can…

Optics · Physics 2022-07-28 Mingqing Liu , Shuaifan Xia , Mingliang Xiong , Mengyuan Xu , Qingwen Liu , Hao Deng

We explore the bifurcation structure of mode-1 solitary waves in a three-layer fluid confined between two rigid boundaries. A recent study (Lamb, J. Fluid Mech. 2023, 962, A17) proposed a method to predict the coexistence of solitary waves…

Fluid Dynamics · Physics 2025-09-30 Ricardo Barros , Alex Doak , Wooyoung Choi , Paul Milewski