On the problem of normal modes of a waveguide by Oleg K. Kroytor, Mikhail D. Malykh, Leonid A. Sevastianov

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A Normal Mode Model Based on the Spectral Element Method for Simulating Horizontally Layered Acoustic Waveguides by Yinuo Zhang, Houwang Tu, Yongxian Wang, Guojun Xu, Dongbao Gao

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A Dedispersion Transform Method for Extracting the Normal Modes of a Shallow Water Acoustic Signal in the Pekeris Waveguide by Guang-Bing YANG, Lian-Gang LÜ, Da-Zhi GAO, Ying JIANG, Hong-Ning LIU

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Quantum Mpemba Effect from Non-Normal Dynamics by Stefano Longhi

“…We demonstrate this mechanism using a waveguide quantum electrodynamics model, where quantum emitters interact with the photonic modes of a one-dimensional waveguide. …”
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Modeling and Optimization of Vortex Modes Propagation in Rectangular Dielectric Waveguides by Vladimir S. Lyubopytov, Ruslan V. Kutluyarov, Valeriy K. Bagmanov, Niels Neumann, Albert K. Sultanov

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A Coupling Graphic Pipeline with Normal Mode Model for Rapid Calculation of Underwater Acoustic Field by Jianghao Zhuo, Ling Wang, Ke Xu, Jianwei Wan

“…The computer times of the proposed graphic pipeline method, the MATLAB code, and the C# code are compared for a stratified shallow water waveguide using the KRAKEN model at different frequencies. …”
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Flat Dielectric Waveguides of the Terahertz Range and Diffraction Antennas on Their Basis by I. G. Mironenko, S. S. Sokolov, A. A. Ivanov

“…Construction of a computational model for calculating a flat dielectric waveguide by the finite element method, determination of the dispersion characteristics of the analyzed structure in the THz range. …”
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Prediction of Target-Induced Multipath Interference Acoustic Fields in Shallow-Sea Ideal Waveguides and Statistical Characteristics of Waveguide Invariants by Yuanhang Zhang, Peizhen Zhang, Jincan Li

“…This study employs a hybrid method combining normal modes and scattering functions to numerically model the acoustic scattering of targets in waveguide channels. …”
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Solution to the Eigenvalue Problem of Rectangular Waveguides with Partial Dielectric Filling by Fourier Transform by I. G. Mironenko, S. S. Sokolov, A. A. Ivanov

“…A mathematical model for the analysis of a waveguide with partial dielectric filling is based on Maxwell’s equations using boundary conditions for tangential and normal components of the electromagnetic field.Results. …”
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Investigation of a Radiation Pattern Frequency Dependence of a Subarrayed Slotted Waveguide Antenna Using CAD Ansys HFSS by V. G. Koshkid’ko, M. M. Migalin

“…Introduction. A resonant slotted waveguide antenna allows providing broadside radiation, which coincides with the normal line to the longitudinal axis of the array. …”
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Efficient Prediction of Shallow-Water Acoustic Transmission Loss Using a Hybrid Variational Autoencoder–Flow Framework by Bolin Su, Haozhong Wang, Xingyu Zhu, Penghua Song, Xiaolei Li

“…Deep learning approaches, based on data-driven principles, enable accurate input–output approximation and batch processing of large-scale datasets, significantly reducing computation time and cost. To establish a rapid prediction model mapping sound speed profiles (SSPs) to acoustic TL through controllable generation, this study proposes a hybrid framework that integrates a variational autoencoder (VAE) and a normalizing flow (Flow) through a two-stage training strategy. …”
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Operation Evaluation of Phased Antenna Arrays in Case of Phase Shifter Malfunction by M. R. Bibarsov, A. F. Kryachko, A. V. Pshenichnikov

“…When studying up to 35 faulty PS of an AE from 50 elements, the following characteristics were changed: standard deviation – from 0.056 to 0.18; relative values: radiation pattern width – from 8 to 32 %; level of side lobes – from 13 to 78 %; radiation power – from 0.9 to 0.31. A range of WSPAA states was formed upon the occurrence of PS failures: "Normal operation" – up to 7 faulty PS; "Deterioration of parameters" – from 7 to 12 faulty PS; "Failure" – more than 12 faulty PS.Conclusion. …”
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New Insights Reached via Graded-Interfaces Modeling: How High-Power, High-Efficiency Mid-Infrared QCLs Work by Dan Botez, Suraj Suri, Huilong Gao, Thomas Grange, Jeremy D. Kirch, Luke J. Mawst, Robert A. Marsland

“…Graded-interfaces modeling unveils key features of high-power, high-efficiency quantum-cascade lasers (QCLs): direct resonant-tunneling injection from a prior-stage, low-energy state into the upper-laser (<i>ul</i>) level, over a wide (~50 nm) multiple-barrier region; and a new type of photon-induced carrier transport (PICT). …”
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A 3D-Printed, Metallic-Free, Water-Based Metamaterial for Tunable S-Band Applications by Edoardo Giusti, Danilo Brizi, Agostino Monorchio

“…A multilayer metamaterial structure is designed by exploiting the transmission line equivalent circuit modeling. …”
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Identification of Continental Mantle Earthquakes Using Regional Waves Propagating Into a Thinned Continental Crust by Shiqi Wang, Simon L. Klemperer

“…They rely on guided waves whose propagation is dependent on the uniformity of their waveguides. For a range of Moho models, we perform 2.5D axisymmetric simulations that reach the conventional distance and frequency ranges of observational studies; we compare results from four different source depths straddling the Moho. …”
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Underwater target depth estimation: A shallow-water broadband acoustic source depth estimation method based on corrected warping transformation. by Du Siqi, Han Dong, Liu Cong, Li Sidi

“…A broadband sound source depth estimation method based on the BDRM model is proposed for the shallow sea to address the problem that the traditional Warping transform is limited by the ideal waveguide and cannot handle the real marine environment localization of structures with variable sound speed profiles. …”
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Optical Versus Electronic Implementation of Probabilistic Graphical Inference and Experimental Device Demonstration Using Nonlinear Photonics by Masoud Babaeian, Patrick Keiffer, Mark A. Neifeld, Ratchaneekorn Thamvichai, Robert A. Norwood, Pierre-A. Blanche, John Wissinger, N. Peyghambarian

“…The normalization and multiplication are shown optically through a pump-probe saturation process and a logarithm-summation-exponential (log-sum-exp) operation, respectively. …”
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Characteristics of guided modes in graphene-coated chiral nihility fibers. by Muhammad Usman Shahid, Abdul Ghaffar, Majeed A S Alkanhal, Yasin Khan, Muhammad Amir Ali

“…Kubo formalism is applied to model the conductivity of single-layer graphene, and suitable boundary conditions are applied at the proposed waveguide structure. …”
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Study on Molybdenum–Rhenium Alloy Ultrasonic Resonance Temperature Sensor by Haijian Liang, Gao Wang, Xiaomei Yang, Yanlong Wei, Hongxin Xue

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Monitoring dynamic water content, bulk density, and heat and water fluxes in the critical zone with thermo‐time domain reflectometry sensors by Yili Lu, Yutong Liu, Wei Peng, Yongwei Fu, Tusheng Ren, Joshua Heitman, Robert Horton

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