Results 61 to 70 of about 16,047 (248)

Situational Awareness in Distribution Grid Using Micro-PMU Data: A Machine Learning Approach

IEEE Transactions on Smart Grid, 2019
The recent development of distribution-level phasor measurement units, also known as micro-PMUs, has been an important step toward achieving situational awareness in power distribution networks.
A. Shahsavari, M. Farajollahi, E. Stewart, Ed Cortez, Hamed Mohsenian-Rad   +4 more
semanticscholar   +1 more source

A reliability‐based optimal μ‐PMU placement scheme for efficient observability enhancement of smart distribution grids under various contingencies

IET Science, Measurement & Technology, 2021
Correspondence Navid Taghizadegan, 35 Km Tabriz-Maragheh Road, P.O.B: 53714-161, Tabriz, Iran Email: taghizadegan@azaruniv.ac.ir Abstract A reliability-based optimal μ-PMU (micro-phasor measurement unit) placement scheme is suggested for efficient ...
A. Abdolahi, N. Taghizadegan, M. Banaei, J. Salehi   +3 more
semanticscholar   +1 more source

Diagnosis and treatment for frequency hopping of PMU within an intelligent substation

Zhejiang dianli
In the wide area measurement system （WAMS） of a province， occasional frequency hopping has been observed in digital phasor measurement unit （PMU） within an intelligent substation.
WANG Zhihua, ZHANG Jiangnan, JIN Yangjun, XU Zhiwei, WU Po, LI Xiaohui, YANG Qianqian   +6 more
doaj   +1 more source

Ruptured peroneal aneurysm after infrapopliteal prosthetic bypass with Taylor patch

EJVES Short Reports, 2015
Introduction: A 45-year-old mailman underwent an implantation of a femoro-peroneal polytetrafluoroethylene (PTFE) bypass with a distal Taylor patch six years prior to admission after two failed autologous reconstructions and extensive fasciotomy.
Florian Enzmann, Klaus Linni, Thomas Hölzenbein   +2 more
doaj   +1 more source

Hydrogen‐Stabilized Self‐Rectifying Memristor Arrays for Reliable Multilevel Synapses in Transformer‐Based Keyword Spotting

Advanced Science, EarlyView.
A non‐filamentary self‐rectifying HfO2/TiOx resistive random‐access memory integrates H2 annealing with an incremental step pulse with verify algorithm to achieve stable and linear analog conductance modulation. The device enables low‐current 6‐bit multilevel operation while suppressing sneak current in crossbar arrays. Implemented in Transformer‐based
Seonjeong Lee, Seohyeon Ju, Won Joo Lee, Myounggon Kang, Sungjun Kim, Yoon Kim   +5 more
wiley   +1 more source

Defense Method for Smart Grid GPS Spoofing Attack Based on BiLSTM and Self-attention Mechanism Generative Adversarial Network

Zhongguo dianli
Phasor measurement unit (PMU) plays a crucial role in smart grids, enabling precise synchronized acquisition of electric power data. Due to the use of the global positioning system (GPS) for time synchronization, the PMU is vulnerable to GPS spoofing ...
Hui WU, Ziwei ZOU, Fengming XIAO, Jie LIU, Chenpeng MIN, Zhuoqun XIA   +5 more
doaj   +1 more source

Volatile ZrO2 Antiferroelectric Tunnel Junctions for Rapid, Energy‐Efficient Physical Reservoir Computing

Advanced Science, EarlyView.
An antiferroelectric tunnel junction serves as a reservoir computing node, where field‐induced phase transitions and spontaneous ZrO2 relaxation deliver nonlinear fading memory. An In‐Ga‐Zn oxide interlayer enlarges the memory margin and multibit state richness.
Taegyu Kwon, Moonseek Jeong, Su In Hwang, Geun Hyeong Park, Joonyong Kim, Hyojun Choi, Hyeong Seok Choi, Da Hyun Kim, Dong Hee Han, Ju Yong Park, Seungho Baek, Jung Ho Yoon, Dong Hyun Lee, Min Hyuk Park   +13 more
wiley   +1 more source

The study of synchronization accuracy of ENMU devices according to the PTPv2 protocol in laboratory conditions

Вестник Северо-Кавказского федерального университета
Introduction. One of the directions of digital transformation of the electric power industry is the introduction of intelligent electronic devices (IED) with the function of synchronized measurements.
Yu. G. Kononov, P. A. Zvada, E. G. Zelenskii, R. A. Zvezdilin, D. A. Turchenko   +4 more
doaj   +1 more source

Hydrogen Sulfide Metabolizing Enzymes in the Intestinal Mucosa in Pediatric and Adult Inflammatory Bowel Disease

Antioxidants, 2022
Hydrogen sulfide (H2S) is a toxic gas that has important regulatory functions. In the colon, H2S can be produced and detoxified endogenously. Both too little and too much H2S exposure are associated with inflammatory bowel disease (IBD), a chronic ...
Nathalie Stummer, Daniel Weghuber, René G. Feichtinger, Sara Huber, Johannes A. Mayr, Barbara Kofler, Daniel Neureiter, Eckhard Klieser, Sarah Hochmann, Wanda Lauth, Anna M. Schneider   +10 more
doaj   +1 more source

NbOx Mott Memristor‐Based Oscillatory P‐trit for Ternary Potts Machine

Advanced Science, EarlyView.
A ternary Potts machine utilizing NbOx‐based probabilistic trits (p‐trits) is demonstrated for efficient combinatorial optimization. By leveraging the electro‐thermal switching dynamics of NbOx memristors, this architecture generates three‐state stochastic fluctuations.
Hakseung Rhee, Seoeun Jang, Tae Wook Go, Woojoon Park, Gwangmin Kim, Do Hoon Kim, Hanchan Song, Younghyun Lee, Junmo Kang, Daehee Kim, Kyung Min Kim   +10 more
wiley   +1 more source