Results 21 to 30 of about 8,338 (263)

Research on the improved hybrid DC circuit breaker with voltage-limiting and current-limiting capability

International Journal of Electrical Power & Energy Systems
The DC circuit breaker (DCCB) is a critical device that ensures the safe and reliable operation of the DC transmission system. As the level of DC voltage and transmission power increases, the flexible DC grid will need more and more opening capacity of ...
Hongchun Shu, Zongxue Shao, Yue Dai
doaj   +1 more source

Review on Frequency Security Assessment and Coordinated Inertia Control for Low-Inertia Modern Power Systems [PDF]

Dianli jianshe
[Objective] The large-scale integration of high-penetration renewable energy sources（RES）and power-electronic-interfaced devices has continuously displaced the conventional synchronous generators（SG）. This transition has led to a significant reduction in
SHEN Fu, WEI Ziyu, SHU Hongchun, CAO Yang, HUA Haochen, WANG Jian, SHAN Jieshan
doaj   +1 more source

Fault diagnosis of electrical equipment based on virtual simulation technology

Nonlinear Engineering, 2023
In order to efficiently and accurately diagnose train electrical faults, we propose a fault diagnosis method for electrical equipment based on virtual simulation technology. First, Creo software was used to build a subway train model.
Chang Jing, Li Huiqin, Xiao Na, Singh Pavitar Parkash, Vats Prashant, Reddy Chinthalacheruvu Venkata Krishna   +5 more
doaj   +1 more source

Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid

International Journal of Electrical Power & Energy Systems
In asynchronous grid connection mode, the rotational inertia of the partitioned synchronized grid decreases, leading to prominent frequency stability issues.
Hongchun Shu, Huaibin Gao, Zongxue Shao, Yongzan Cui, Wei Zhao   +4 more
doaj   +1 more source

Single‐cell DNA methylation profiling: Technologies, computation, and applications in precision oncology

Molecular Oncology, EarlyView.
Single‐cell DNA methylation (scDNAme) profiling maps epimutational clonal evolution, revealing mechanisms of malignancy and therapeutic resistance across diverse cancer types. By providing a high‐resolution landscape of intratumoral heterogeneity, these technologies empower precise patient stratification, guide the development of enhanced ...
Ik Soo Kim
wiley   +1 more source

Advanced control strategy for wind-storage to compensate hammer effect based on SID and FRR

International Journal of Electrical Power & Energy Systems
To address the seasonal variations in frequency regulation requirements (FRRs) for a hybrid renewable hydropower system, this study proposes an advanced wind-storage coordinated control strategy to compensate for the water hammer effect, based on system ...
Hongchun Shu, Jing Chen, Botao Shi, Guangxue Wang, Xi Wang, Shunguang Lei   +5 more
doaj   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

FEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner, Hainan Zhu, Carol Christine Bosholm, Heuy‐Ching Wang, Tracy Criswell, Anthony Atala, Jian‐Xing Ma, Yuanyuan Zhang   +7 more
wiley   +1 more source

Intelligent Detection Methods of Electrical Connection Faults in RF Circuits

Applied Sciences, 2021
Printed circuit boards (PCBs) have a large number of electrical connection nodes. Exposure to harsh environments may lead to connection faults in these nodes.
Ziren Wang, Jiaqi Li, George T. Flowers, Jinchun Gao, Kaixuan Song, Wei Yi, Zhongyang Cheng   +6 more
doaj   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

Analysis of multiple lightning overvoltage on 110 kV transmission lines

Results in Engineering
As pointed out by the CIGRE TB 549 report issued by the International Power Grid Committee, >80 % of cloud-to-ground lightning are multiple lightning strokes (MLS), posing a severe threat to overhead transmission lines.
Yutao Tang, Haoming Liu, Hongchun Shu, Yue Dai, Yiming Han   +4 more
doaj   +1 more source