Results 71 to 80 of about 1,998,341 (344)

Power Efficient MISO Beamforming for Secure Layered Transmission

, 2013
This paper studies secure layered video transmission in a multiuser multiple-input single-output (MISO) beamforming downlink communication system. The power allocation algorithm design is formulated as a non-convex optimization problem for minimizing the
Alnuweiri, Hussein, Ng, Derrick Wing Kwan, Schober, Robert   +2 more
core   +1 more source

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

Advanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou, Mohammed Benwadih, Arnaud Gabas, Lina Kadura, Minh‐Quyen Le, Daniel Grinberg, Pierre‐Jean Cottinet   +6 more
wiley   +1 more source

Inversion of the temperature field in oil‐immersed reactors using optimal measurement points selected by random forest

IET Electric Power Applications
To address the subjective issue of selecting measurement points based on mainstream line methods for hotspot temperature inversion in oil‐immersed power equipment, this paper demonstrates an oil‐immersed reactor temperature field inversion method based ...
Jiayi Guo, Kaizhuang Zhu, Xiaopeng Li, Jingyun Zhao, Yunpeng Liu, Fangcheng Lv   +5 more
doaj   +1 more source

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

Advanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya, Majed Amini, Mohammad Arjmand, Earl Johan Foster   +3 more
wiley   +1 more source

Equivalent Circuit Model and Experimental Validation of Transformer Windings Considering Long‐Distance Conductor Effects and Frequency‐Dependent Parameters

IET Electric Power Applications
The impulse frequency response method is often combined with the transformer winding equivalent circuit to jointly analyse the frequency response mechanism of the transformer and the winding state, while winding modelling is the necessary fundamental ...
Feng Yiwei, Yao Chenguo, Liu Jiangnan, Dong Shoulong, Liu Yu, Luo Huangtong, Zhao Lisheng   +6 more
doaj   +1 more source

Artificial Intelligence in Cable Fault Detection and Localization: Recent Advances and Research Challenges

Energies
With the large-scale integration of new power systems and distributed generators (DGs), cable fault detection and localization face numerous challenges, where artificial intelligence (AI) techniques demonstrate significant advantages.
Qianqiu Shao, Songhai Fan, Zongxi Zhang, Fenglian Liu, Zhengzheng Fu, Pinlei Lv, Zhou Mu   +6 more
doaj   +1 more source

Performance analysis of radiation cooled dc transmission lines for high power space systems [PDF]

As space power levels increase to meet mission objectives and also as the transmission distance between power source and load increases, the mass, volume, power loss, and operating voltage and temperature become important system design considerations ...
Schwarze, G. E.
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

4.5kV FRD Development for high current power modules

MATEC Web of Conferences, 2018
A 4.5kV/100A FRD was designed by simulation, which had optimized carrier density distribute cell and ruggedness terminal. The cell was composed of P-body/N-sub/N+ layers, when the P-body doping concentration is lower, the carrier density distribution on ...
Liu Jiang, Liu Yueyang, Jin Rui, He Feng, Dong Shaohua, Pan Yan, Wu Junmin   +6 more
doaj   +1 more source