Results 41 to 50 of about 4,140,882 (287)

Transient Overvoltage Security Region and Overvoltage Comprehensive Suppression Method for the Entire Fault Process in Renewable Energy Collection System Under Asymmetric Fault

Energies
During the asymmetric short-circuit period and the fault recovery stage of the renewable energy collection system, the non-fault phase and the PCC point show transient overvoltage characteristics, respectively, which threaten the safe and stable ...
Biyang Wang, Jieyi Chen, Shirui Liu, Nan Xia, Lei Luo   +4 more
doaj   +1 more source

Four Channel 6.5 kV, 65 A, 100 ns–100 µs Generator with Advanced Control of Pulse and Burst Protocols for Biomedical and Biotechnological Applications

Applied Sciences, 2021
Pulsed electric fields in the sub-microsecond range are being increasingly used in biomedical and biotechnology applications, where the demand for high-voltage and high-frequency pulse generators with enhanced performance and pulse flexibility is pushing
Aleh Kandratsyeu, Uladzimir Sabaleuski, Luis Redondo, Andrei G. Pakhomov   +3 more
doaj   +1 more source

Degradation Analysis of Planar, Symmetrical and Asymmetrical Trench SiC MOSFETs Under Repetitive Short Circuit Impulses

IEEE Transactions on Power Electronics, 2023
In this article, the reliability of planar, symmetrical, and asymmetrical trench SiC MOSFETs is analysed under repetitive short circuit impulses at 300 and 450 K. Both static and dynamic parameters are measured to characterize the degradation pattern of the three MOSFET structures.
Renze Yu, Saeed Jahdi, Phil Mellor, Li Liu, Juefei Yang, Chengjun Shen, Olayiwola Alatise, Jose Ortiz-Gonzalez   +7 more
openaire   +2 more sources

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

Advanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee, Geunyoung Kim, Hwa Young Kim, Do Hoon Kim, Hanchan Song, Huisu Noh, Jungwan Noh, Seungwoo Lee, Sang‐Hee Ko Park, Himchan Cho, Kyung Min Kim   +10 more
wiley   +1 more source

Dynamic Conditional Correlations for Asymmetric Processes [PDF]

The paper develops two Dynamic Conditional Correlation (DCC) models, namely the Wishart DCC (wDCC) model. The paper applies the wDCC approach to the exponential GARCH (EGARCH) and GJR models to propose asymmetric DCC models.
Michael McAleer, Manabu Asai
core   +4 more sources

A fault diagnosis method of power converter of switched reluctance motor

Gong-kuang zidonghua, 2014
For low reliability of existing fault diagnosis method of power converter of switched reluctance motor, the paper proposed a new type of fault diagnosis method of power tube.
SUN Guanqun, LI Mei
doaj   +1 more source

Predetermination of Currents and Field in Short-Circuit Voltage Operation for an Axial-Flux Permanent Magnet Machine [PDF]

, 2008
Risk of irreversible magnet demagnetization during short-circuit fault is analyzed in case of an axial-flux dual-rotor machine, using a three-dimensional finite-element method (3D-FEM).
LOCMENT, Fabrice, SEMAIL, Eric, HENNERON, Thomas, PIRIOU, Francis   +3 more
core  

Operando Tracking of Oxygen‐Vacancy Dynamics and Negative Capacitance in Ca‐Doped BiFeO3

Advanced Functional Materials, EarlyView.
Operando electrochemical impedance spectroscopy, combined with electrocoloration, enables a direct correlation between real‐space ionic redistribution and the corresponding frequency‐domain electrical response. In lateral Ca‐doped BiFeO3 devices, time‐resolved impedance snapshots capture the evolution from bulk‐dominated mixed conduction to an ...
Jeonghun Suh, Heung‐Sik Park, Jong‐Sook Lee, Chan‐Ho Yang   +3 more
wiley   +1 more source

Noise margin and short-circuit current in FGMOS logics [PDF]

, 2011
Even when floating-gate logics are very-low-voltage circuits, as power supply is reduced, large fan-in FGMOS gates are prone to fail. Thus, determining the negative impact of noise margin and short-circuit current in this type of circuits is crucial to ...
Luis Fortino Cisneros Sinencio, Jaime Ramírez Angulo, ALEJANDRO DIAZ SANCHEZ   +2 more
core  

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

Advanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen, Peng‐Jun Deng, Yang Liu, Shenglong Huang, Shuo Sun, Haoxuan Li, Jiajia Lu, Panagiotis Tsiakaras   +7 more
wiley   +1 more source