Results 21 to 30 of about 183,908 (257)

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

An optimal transformer differential protection method based on zero-sequence differential current characteristics

Zhejiang dianli
When current transformers are not installed on the delta winding of a wye-delta transformer， the differential protection must utilize currents measured outside the delta winding to calculate the differential current.
SUN Zhongmin, ZHANG Xiaoyu, LIN Jinjiao, GU Qiaogen, LI Peng, MO Pinhao, ZHENG Chao   +6 more
doaj   +1 more source

Research on a Faulty Line Selection Method Based on the Zero-Sequence Disturbance Power of Resonant Grounded Distribution Networks

Energies, 2019
For fast and accurate faulty line selection (FLS) in single phase-to-ground (SPG) faults for resonant grounded distribution networks (RGDNs), this paper proposes a FLS method based on zero-sequence power characteristics.
Wenquan Shao, Jie Bai, Yuan Cheng, Zhihua Zhang, Ning Li   +4 more
doaj   +1 more source

Analysis of two-phase operation characteristics of a flexible low-frequency transmission system

Zhejiang dianli, 2022
The two-phase operation mode of a flexible low-frequency transmission system is based on the M3C （modular multilevel matrix converter）. This paper establishes a complex sequence network for the low-frequency system to analyze the steady-state operation ...
LU Yi, HUA Wen, JIN Yuqi, DONG Wei, NI Xiaojun, ZOU Qiang, WU Xiaodan   +6 more
doaj   +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

GENERAL FAULT ADMITTANCE METHOD LINETO- LINE-TO-LINE UNSYMMETRICAL FAULT [PDF]

Journal of Engineering Science and Technology, 2015
Line-to-line-to-line unsymmetrical faults either involving or not involving ground are in the classical fault analysis approach difficult to analyse.
J. D. SAKALA, J. S. J. DAKA
doaj  

Research on fault line selection method of mine power network

Gong-kuang zidonghua, 2018
In view of characteristics of DC component of transient zero-sequence current in fault lines is larger than that of normal lines when additional DC source system of mine power network occurrs single-phase earth fault, a fault line selection method of ...
LI Ke, SUI Xiaona, ZHANG Jun, ZHANG Feifei, LI He, ZOU Wei   +5 more
doaj   +1 more source

An improved Hausdorff distance method for locating single phase to ground fault in neutral non‐effectively grounded system

IET Generation, Transmission & Distribution, 2021
Neutral non‐effectively grounded mode is widely used in medium‐voltage distribution networks in China. When a single‐phase grounding fault occurs in distribution networks, abundant transient signals will be generated.
Wenhao Wu, Xinhui Zhang, Jun Zhang, Yu He, Wenyuan Bai   +4 more
doaj   +1 more source

Voltage Zero-Sequence Components in Optimal Control of Five-Phase PMSM Drives

IECON 2025 – 51st Annual Conference of the IEEE Industrial Electronics Society
This paper investigates the utilization of the zerosequence component (ZSC) to increase the voltage and enhance the operation area of five-phase electric drives with permanent magnet synchronous machines (PMSM). Although the ZSC allows reaching higher voltage, its application in multiphase drives is constrained by the usage of x-y planes activated by ...
Jan Laksar, Tomáš Komrska, Ondřej Suchý, Václav Šmídl   +3 more
openaire   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source