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Highly oscillatory differential equations present significant challenges in numerical treatments. The Modulated Fourier Expansion (MFE), used as an ansatz, is a commonly employed tool as a numerical approximation method. In this article,…

Numerical Analysis · Mathematics 2024-07-17 Rafał Perczyński , Antoni Augustynowicz

The Electric Network Frequency (ENF) serves as a unique signature inherent to power distribution systems. Here, a novel approach for power grid classification is developed, leveraging ENF. Spectrograms are generated from audio and power…

Machine Learning · Computer Science 2024-03-28 Georgios Tzolopoulos , Christos Korgialas , Constantine Kotropoulos

The effects of the discharge voltage on the formation and nature of electric field transients in a symmetric, collisionless, very high frequency, capacitively coupled plasma are studied using a self-consistent particle-in-cell (PIC)…

Plasma Physics · Physics 2019-07-24 Sarveshwar Sharma , N. Sirse , A. Sen , J. S. Wu , M. M. Turner

Recording reliably extracellular neural activities isan essential prerequisite for the development of bioelectronicsand neuroprosthetic applications. Recently, a fully differential,2-stage, integrating pre-amplifier was proposed for…

Emerging Technologies · Computer Science 2020-09-22 Jiaqi Wang , Alexander Serb , Christos Papavassiliou , Sachin Maheshwari , Themistoklis Prodromakis

Eddy current shielding by a Faraday cage is an effective way to shield alternating-current (AC) magnetic fields in scientific instrumentation. In a strong static magnetic field, however, the eddy current in the conductive shield is subject…

Instrumentation and Detectors · Physics 2024-04-09 Seung-Kyun Lee , Yihe Hua

In this work, we investigate multimodal foundation models (MFMs) for EmoFake detection (EFD) and hypothesize that they will outperform audio foundation models (AFMs). MFMs due to their cross-modal pre-training, learns emotional patterns…

In Measurement-Device-Independent Quantum Key Distribution (MDI-QKD), key rates are significantly reduced due to dispersion in asymmetric channels. This work addresses this issue by utilizing intensity and phase modulators for dispersion…

Quantum Physics · Physics 2024-11-19 Ishan Pandey , Gokul A , Varun Raghunathan

A modular and scalable converter for medium voltage (MV) AC to low voltage (LV) DC power conversion is proposed; single-phase-modules (SPMs), each consisting of an active-front-end (AFE) stage and an isolated DC-DC stage, are connected in…

Systems and Control · Electrical Eng. & Systems 2020-07-10 M A Awal , Iqbal Husain , Md Rashed Hassan Bipu , Oscar Andreas Montes , Fei Teng , Hao Feng , Mehnaz Khan , Srdjan Lukic

This paper develops an inductive power transfer(IPT)system with stable output power based on a Class E/EF inverter. Load-independent design of Class E/EF inverter has recently attracted widespread interest. However, applying this design to…

Systems and Control · Electrical Eng. & Systems 2025-02-20 Yifan Zhao , Mowei Lu , Heyuan Li , Zhenbin Zhang , Minfan Fu , Stefan M. Goetz

High-power fiber laser amplifiers have enabled an increasing range of applications in industry, medicine and defense. The power scaling for narrow-band amplifiers is currently limited by the transverse modal instability. Various techniques…

Optics · Physics 2023-07-05 Chun-Wei Chen , Kabish Wisal , Yaniv Eliezer , A. Douglas Stone , Hui Cao

A fast and highly efficient frequency modulation at a high power level is described. The system incorporates ferroelectric phase shifters and a magic-T or a circulator. A magnetron may be considered as a potential application. The magnetron…

Accelerator Physics · Physics 2025-02-20 Ilan Ben-Zvi , Nicholas Shipman

Dielectric barrier discharge (DBD) plasma actuators generate an electrohydrodynamic (EHD) force through the ionization and acceleration of charged species. Most active flow control DBD applications are only practical at lower Reynolds…

Plasma Physics · Physics 2024-11-27 Anthony Tang , Alexander Mamishev , Igor Novosselov

It is well-established that a proportional current control gain emulates a resistor in the converter output impedance. Even though this resistance can provide additional damping to grid resonances, its effect for traditional linear current…

Systems and Control · Electrical Eng. & Systems 2024-06-24 Orcun Karaca , Ioannis Tsoumas , Tinus Dorfling , Ran Chen , Lennart Harnefors

In this paper, a two-dimensional analytical model of a laterally graded-channel triple-metal double-gate Junctionless Field Effect Transistor with hetero dielectric gate oxide stack consisting of SiO$_2$ and HfO$_2$ is derived. The model…

Materials Science · Physics 2021-09-24 Shib Sankar Das , Barun Majumder , Ankush Ghosh

Improving the power efficiency and spectral efficiency of communication systems has been one of the major research goals over the recent years. However, there is a tradeoff in achieving both goals at the same time. In this work, we consider…

Information Theory · Computer Science 2017-06-28 Hela Jedda , Muhammad Mudussir Ayub , Jawad Munir , Amine Mezghani , Josef A. Nossek

Modular multilevel converters are wellknown in the energy sector and have significant potential in others, such as electromobility. Generally, their stable operation is at the expense of numerous sensors, communication burdens, and…

Systems and Control · Electrical Eng. & Systems 2023-03-06 N. Tashakor , Y. Zhang , S. Banana , F. Blaabjerg , S. Goetz

This paper reviews the main types of radio-frequency power amplifiers which are, or may be, used for high-power hadron accelerators. It covers tetrodes, inductive output tubes, klystrons and magnetrons with power outputs greater than 10 kW…

Accelerator Physics · Physics 2013-03-07 Richard G. Carter

We discuss the general method for obtaining full positivity bounds on multi-field effective field theories (EFTs). While the leading order forward positivity bounds are commonly derived from the elastic scattering of two (superposed)…

High Energy Physics - Phenomenology · Physics 2021-09-22 Xu Li , Hao Xu , Chengjie Yang , Cen Zhang , Shuang-Yong Zhou

In order to improve the already existing models that are used extensively in bio sciences and applied sciences research, a new class of Weighted Power function distribution (WPFD) has been proposed with its various properties and different…

Other Statistics · Statistics 2020-08-03 Azam Zaka , Ahmad Saeed Akhter , Riffat Jabeen

An efficient method for frequency domain analysis of 2D cross-field devices is presented. This work was done to analyze and design high efficiency magnetrons. Arbitrary device-geometries are described by a piecewise planar boundary. The…

Accelerator Physics · Physics 2007-05-23 Valery A. Dolgashev , Sami G. Tantawi