Results 71 to 80 of about 263,619 (265)

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

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane, Valentina Giunchiglia, Michael C. B. David, Magdalena A. Kolanko, William R. Trender, Peter J. Hellyer, Harmeena Kaur, David J. Sharp, Christopher Carswell, Paresh A. Malhotra, Adam Hampshire   +10 more
wiley   +1 more source

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi, Sola Al Ghazal, Salem Hannoun, Medhat A. Siddik, Nour M. Najjar, Jim Dagher, Joseph Abboud, Myriam G. Semaan, Samia J. Khoury   +8 more
wiley   +1 more source

Research of Fault Line Selection Method of Distribution Network Based on Transient Zero-sequence Energy

Gong-kuang zidonghua, 2012
For problem of ineffectiveness of traditional line selection methods by use of single feature value caused by complex and random fault borderline, small steady component of fault and reverse phase of instantaneous zero-sequence power when single-phase ...
TIAN Shu, HE Jin-peng, NIE He
doaj  

A fault line selection method for flexible grounding systems based on zero-sequence current phase variation

Zhejiang dianli
To address the poor tolerance to transitional resistance and incomplete utilization of fault information in grounding protection for flexible grounding systems， a fault line selection method based on current phase variation is proposed.
LI Zong, WANG Deqiang, FENG Liang, SONG Jianguo, GAO Weiyuan, YUAN Pengsheng   +5 more
doaj   +1 more source

Dead-beat circulating current suppression method of underground UPS paralleling power supply system

Gong-kuang zidonghua, 2016
In order to improve reliability of underground UPS power supply system, a dead-beat circulating current suppression method of underground UPS paralleling power supply system was put forward.
WANG Ling, WU Tao, LI Zhizhong
doaj   +1 more source

Effects of Add‐On Icosapent Ethyl With Standard Treatment on Functional Outcomes and Inflammatory Biomarkers in Acute Ischemic Stroke: A Blinded Randomized Controlled Trial

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ischemic stroke, a major cause of mortality and long‐term disability, results from the abrupt cessation of cerebral blood flow due to vascular occlusion or rupture. Icosapent Ethyl (EPA‐EE), approved for hypertriglyceridemia, has anti‐inflammatory and antithrombotic properties that may lessen ischemic damage.
Mitra Mahmoudi Meymand, Seyed Hossein Aghamiri, Saeed Mohmammad Soleymani, Shadiyeh Bararpoor Poshkohi, Samaneh Masoudi, Hadi Esmaily   +5 more
wiley   +1 more source

Demagnetisation fault detection in PMSM using zero sequence current components

Electronics Letters, 2017
A demagnetisation fault detection method for a delta‐connected permanent magnet synchronous machine (PMSM) based on zero sequence current components (ZSCC) is proposed. The model of the delta‐connected PMSM with the demagnetisation fault is first established.
Shichuan Ding, Jun Hang, Hao Li, Qunjing Wang   +3 more
openaire   +1 more source

Method of Calculation of Current of the Ground Faults in the Parallel Overhead Transmission Lines 110-220 Kv

MATEC Web of Conferences, 2017
The mutual induction between the phase wires of the different overhead lines which situate close to each other cause unbalanced redistribution of currents in the line wires. This leads to emergence of the outof-balance zero sequence current which affects
Ukraintsev Alexandr V., Nagay Ivan V.
doaj   +1 more source

Quantitative MRI Uncovers Subtle Cortical Damage in Myelin Oligodendrocyte Glycoprotein Antibody‐Associated Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether myelin‐sensitive quantitative MRI reveals microstructural abnormalities in normal‐appearing cortex (NACtx) in myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD), indicating that conventional MRI underestimates remission residual cortical injury.
Valentina Camera, Agnese Tamanti, Silvia Messina, Nicola Dall'Osto, Teresa Maltempo, Stefano Ziccardi, Matteo Foschi, Maria Grazia Piscaglia, Diana Ferraro, Francesco Crescenzo, Francesca Rossi, Albulena Bajrami, Sabrina Marangoni, Damiano Marastoni, Francesca Benedetta Pizzini, Maria Isabel Leite, Roberta Magliozzi, Patrick Waters, Massimiliano Calabrese, Jacqueline Palace, Ruth Geraldes   +20 more
wiley   +1 more source