English
Related papers

Related papers: Monitoring of SF6 Degradation in GIS Using Frequen…

200 papers

The growing deployment of unhardened embedded devices in critical systems demands the monitoring of hardware ageing as part of predictive maintenance. In this paper, we study degradation on a large deployment of 298 naturally aged FPGAs…

Hardware Architecture · Computer Science 2024-12-23 Leandro Lanzieri , Lukasz Butkowski , Jiri Kral , Goerschwin Fey , Holger Schlarb , Thomas C. Schmidt

This paper is an effort to evaluate the numerical indices for the assessment of the frequency response analysis (FRA) to provide a deeper understanding of their characteristics. The study introduces the indices in the literature and…

Systems and Control · Electrical Eng. & Systems 2021-06-28 Reza Khalilisenobari , Javad Sadeh

Reconfigurable Intelligent Surface (RIS) can create favorable multipath to establish strong links that are useful in millimeter wave (mmWave) communications. While previous works used Rayleigh or Rician fading, we use the fluctuating…

Information Theory · Computer Science 2020-11-10 Hongyang Du , Jiayi Zhang , Julian Cheng , Zhaohua Lu , Bo Ai

The electric power transformer is a critical component in electrical distribution networks, and the diagnosis of faults in transformers is an important research area. Frequency Response Analysis (FRA) methods are widely used for analyzing…

Computational Engineering, Finance, and Science · Computer Science 2024-07-01 Guohao Wang

This letter investigates the performance of emerging wireless communication systems assisted by a fluid reconfigurable intelligent surface (FRIS). Unlike conventional reconfigurable intelligent surfaces (RISs), an FRIS consists of…

The appearance of sixth-generation networks has resulted in the proposal of several solutions to tackle signal loss. One of these solutions is the utilization of reconfigurable intelligent surfaces (RIS), which can reflect or refract…

Information Theory · Computer Science 2023-04-11 Md. Mijanur Rahman , A. S. M. Badrudduza , Noor Ahmad Sarker , Md. Ibrahim , Imran Shafique Ansari

A power transformer winding is usually subject to mechanical stress and tension because of improper transportation or operation. Radial deformation (RD) is an example of mechanical stress that can impact power transformer operation through…

Systems and Control · Electrical Eng. & Systems 2020-12-15 Arash Moradzadeh , Kazem Pourhossein , Behnam Mohammadi-Ivatloo , Tohid Khalili , Ali Bidram

The interfacial instability in a two-phase mixing layers between parallel gas and liquid streams is important to two-phase atomization. Depending on the inflow conditions and fluid properties, interfacial instability can be convective or…

Fluid Dynamics · Physics 2024-10-29 Tanjina Azad , Yue Ling

Reflective Intelligent Surfaces (RIS) are considered promising in improving coverage in Non-Line of Sight (NLOS) wireless links, especially at mm wave or higher frequency bands. Coverage provided by RIS is here compared to coverage from…

Signal Processing · Electrical Eng. & Systems 2026-05-07 Dmitry Chizhik , Jinfeng Du

Recent research provides an approximation on the performance for reconfigurable intelligent surface (RIS) assisted systems over generalized fading channels with phase noise resulting from imperfect phase compensation at the RIS. In this…

Information Theory · Computer Science 2022-09-22 Vinay Kumar Chapala , S. M. Zafaruddin

Reconfigurable intelligent surface~(RIS) has drawn a great attention worldwide as it can create favorable propagation conditions by controlling the phase shifts of the reflected signals at the surface to enhance the communication quality.…

Information Theory · Computer Science 2020-01-24 Hongliang Zhang , Boya Di , Lingyang Song , Zhu Han

Dissolved Gas-in-oil analysis (DGA) is used to monitor the condition of bushings on large power transformers. There are different techniques used in determining the conditions from the data collected, but in this work the Artificial…

Machine Learning · Computer Science 2022-04-22 Joshua Tshifhiwa Maumela

Reconfigurable intelligent surface (RIS) is a new technique that is able to manipulate the wireless environment smartly and has been exploited for assisting the wireless communications, especially at high frequency band. However, it suffers…

Information Theory · Computer Science 2023-04-14 Jun Yang , Yijian Chen , Yijun Cui , Qingqing Wu , Jianwu Dou , Yuxin Wang

We propose a deep learning algorithm for seismic interface and pocket detection with neural networks trained by synthetic high-frequency displacement data efficiently generated by the frozen Gaussian approximation (FGA). In seismic imaging…

Geophysics · Physics 2019-11-06 James C. Hateley , Jay Roberts , Kyle Mylonakis , Xu Yang

Reconfigurable intelligent surface (RIS)-empowered communication is one of the promising 6G technologies that allows the conversion of the wireless channel into an intelligent transmit entity by manipulating the impinging waves using…

Information Theory · Computer Science 2020-09-01 I. Yildirim , A. Uyrus , E. Basar

The adoption of a Reconfigurable Intelligent Surface (RIS) for downlink multi-user communication from a multi-antenna base station is investigated in this paper. We develop energy-efficient designs for both the transmit power allocation and…

Information Theory · Computer Science 2022-06-23 Chongwen Huang , Alessio Zappone , George C. Alexandropoulos , Mérouane Debbah , Chau Yuen

Frequency response function (FRF) measurements are widely used in Gravitational Wave (GW) detectors, e.g., for the design of controllers, calibrating signals and diagnostic problems with system dynamics. The aim of this paper is to present…

General Relativity and Quantum Cosmology · Physics 2025-03-24 Mathyn van Dael , Max van Haren , Gert Witvoet , Bas Swinkels , Tom Oomen

We have compiled measurements of the mechanical loss in fused silica from samples spanning a wide range of geometries and resonant frequency in order to model the known variation of the loss with frequency and surface-to-volume ratio. This…

General Relativity and Quantum Cosmology · Physics 2015-06-25 Steven D. Penn , Alexander Ageev , Dan Busby , Gregory M. Harry , Andri M. Gretarsson , Kenji Numata , Phil Willems

Reconfigurable Intelligent Surfaces (RIS) are planar structures connected to electronic circuitry, which can be employed to steer the electromagnetic signals in a controlled manner. Through this, the signal quality and the effective data…

Information Theory · Computer Science 2021-12-21 Long Kong , Steven Kisseleff , Symeon Chatzinotas , Björn Ottersten , Melike Erol-Kantarci

This paper explores the use of reconfigurable intelligent surfaces (RIS) in mitigating cross-system interference in spectrum sharing and secure wireless applications. Unlike conventional RIS that can only adjust the phase of the incoming…

Information Theory · Computer Science 2023-07-03 Fangzhou Wang , A. Lee Swindlehurst
‹ Prev 1 2 3 10 Next ›