Results 111 to 120 of about 200,271 (291)

DC fault current clearance coordinated control strategy for DC grid with hybrid MMC

International Journal of Electrical Power & Energy Systems
For DC grid based on the hybrid modular multilevel converter (MMC), the traditional DC fault current clearance scheme takes a long time and greatly affects the active power transmission.
Shouqi Jiang, Tuo Wang, Guoqing Li, Yechun Xin, Lixin Wang   +4 more
doaj   +1 more source

A Smart Magnetically Actuated Flip‐Disc Programmable Metasurface with Ultralow Power Consumption for Real‐Time Channel Control

Advanced Functional Materials, EarlyView.
The study proposes a 1‐bit programmable metasurface based on flip‐disc display, named flip‐disc metasurface (FD‐MTS). This new design enables ultralow energy consumption while maintaining coding patterns. It also exhibits high scalability and multifunctional flexibility.
Jiang Han Bao, Che Liu, Jia Cheng Li, Zhen Hao Fu, Yi Su Huang, Si Qi Huang, Lei Zhang, Jian Wei You, Tie Jun Cui   +8 more
wiley   +1 more source

A method for short-circuit fault current calculation in DC grids based on phase-mode transformation

电力工程技术
Accurate short-circuit fault current calculation is important for device selection, parameter design and protection research of flexible DC grid. To solve the problem that existing fault current calculation methods do not consider the pole-to-pole ...
WANG Taiji, ZHANG Kun, XU Zhuang, GUO Yanxun   +3 more
doaj   +1 more source

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

Advanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Zhikang Zhou, Zhilu Liang, Shuonan Ye, Meng Li, Xiao Tong, Kim Kisslinger, Sooyeon Hwang, Dmitri Zakharov, Renu Sharma, Judith C. Yang, Guangwen Zhou   +14 more
wiley   +1 more source

Matching Method for Power Grid Fault Handling Plan Based on Semantic Enhancement

Zhongguo dianli
In order to improve the matching efficiency and accuracy of grid fault handling plan, a semantic enhancement-based grid fault handling plan matching method is proposed.
Fei MENG, Jiangpeng LI, Tao LI, Jianzhong XU, Haiyang GAO, Yongtian QIAO   +5 more
doaj   +1 more source

Fault Ride-Through Strategy for Grid-Forming Converters Under Symmetrical and Asymmetrical Grid Faults

Electric Power Systems Research, 2023
Zhao, Xianxian, Kestelyn, Xavier, Flynn, Damian   +2 more
openaire   +2 more sources

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Transient characterization and amplitude-phase compensation control for GFM-DFIG considering grid voltage phase jump

International Journal of Electrical Power & Energy Systems
The grid-forming doubly-fed induction generator possesses the ability to construct voltage and frequency. However, under grid fault conditions, it encounters issues such as transient instability, fault overcurrent, and insufficient reactive power support.
Pingjuan Ge, Ruitong Mao, Hailiang Xu, Yishuo Yang   +3 more
doaj   +1 more source

A Single‐Metal‐Doped Nanoplatform for Ferroptosis‐Driven cGAS‐STING Pathway Activation in Hepatocellular Carcinoma Immunotherapy

Advanced Functional Materials, EarlyView.
The cGAS‐STING pathway boosts HCC antitumor immunity but lacks specific activation. Nanoplatform ZMRPF induces HCC ferroptosis via lipid ROS, releasing mtDNA. It synergizes with ZMRPF‐released Mn2⁺ to activate cGAS‐STING, amplifies antigen‐presenting cell activity, reverses HCC immunosuppression, and enables robust systemic antitumor immunity ...
Yuchen Zhang, Shuang Feng, Jie Luo, Kaige Xu, Junfeng Guo, Xingyue Zhang, Mengxue Yuan, Qiang Luo, Yu Huang, Chaoqiang Fan, Kibret Mequanint, Donghui Zhu, Malcolm Xing, Shiming Yang   +13 more
wiley   +1 more source

The Anisotropic Adsorption of De Novo Allosteric Two‐Component Protein Fibers on Mica Surfaces

Advanced Functional Materials, EarlyView.
In this study, the interfacial behavior of de novo designed proteins that self‐assemble into tubular architectures with distinct morphologies — small (S), large (L), and helical (H) fibers — at the muscovite mica‐water interface is explored using in situ AFM. Abstract Protein adsorption at solid–liquid interfaces underlies many biomedical and materials
Chenyang Shi, Hao Shen, Yuna Bae, Jaeyoung Heo, Shuai Zhang, Lehan Yao, David Baker, James J De Yoreo   +7 more
wiley   +1 more source