Results 71 to 80 of about 371,462 (355)

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

Fault detection and diagnosis of a plastic film extrusion process [PDF]

, 2010
This paper presents a new approach to the design of a model-based fault detection and diagnosis system for application to a plastic film extrusion process. The design constructs a residual generator via parity relations.
DuPont Teijin Films UK Ltd (Funder), Hur, Sung-ho, Katebi, Reza, Taylor, Andrew, UK EPSRC Industrial CASE Award (Funder)   +4 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 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

Cooperative Virtual Sensor for Fault Detection and Identification in Multi-UAV Applications [PDF]

, 2018
This paper considers the problem of fault detection and identification (FDI) in applications carried out by a group of unmanned aerial vehicles (UAVs) with visual cameras.
Heredia Benot, Guillermo, Ollero Baturone, Aníbal, Suárez, Alejandro   +2 more
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
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

Software fault characteristics: A synthesis of the literature [PDF]

, 2015
Faults continue to be a significant problem in software. Understanding the nature of these faults is important for practitioners and researchers. There are many published fault characteristics schemes but no one scheme dominates.
Bowes, D, Counsell, S, Hall, T, Moonen, L, Yamashita, A   +4 more
core  

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Quasi-single phase permanent fault identification method and reclosing strategy based on multi-level confidence rules

International Journal of Electrical Power & Energy Systems
As global temperatures rise, the frequency of lightning increases, making lightning one of the principal threats to power-system security. Field incidents indicate that, within the automatic reclosing time window, multiple-stroke lightning can exhibit ...
Hongchun Shu, Baisong Liu, Weijie Lou, Yutao Tang, Haoming Liu, Yiming Han, Yue Dai, Ying Cao   +7 more
doaj   +1 more source