Results 71 to 80 of about 4,554 (306)

Characterization of Clinical Phenotype to Glial Fibrillary Acidic Protein Concentrations in Alexander Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine the concentration of glial fibrillary acidic protein (GFAP) in cerebrospinal fluid (CSF) and plasma in Alexander disease (AxD) and whether GFAP levels are predictive of disease phenotypes. Methods CSF and plasma were collected (longitudinally when available) from AxD participants and non‐AxD controls.
Amy T. Waldman   +9 more
wiley   +1 more source

Comparison of different technologies for improving commutation failure immunity index for LCC HVDC in weak AC systems [PDF]

open access: yes, 2015
Flexible AC Transmission System (FACTS) devices and Voltage Source Converter (VSC) High Voltage Direct Current (HVDC) systems have fast reactive power control capabilities which can be used to increase power system voltage stability.
Booth, Campbell   +2 more
core   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito   +14 more
wiley   +1 more source

Pigeon-inspired optimization for reactive power planning with multitype FACTS devices

open access: yesJournal of Electrical Systems and Information Technology
In this present work, pigeon inspired optimization (PIO) technique was applied for the optimal coordination of multi-type FACTS devices with the different VAr sources already existed in a connected power network.
Biplab Bhattacharyya   +1 more
doaj   +1 more source

COORDINACION DE PSS Y SVC PARA MEJORAR LA ESTABILIDAD DINAMICA

open access: yesIngeniería, 2011
Este trabajo constituye un aporte para mejorar el amortiguamiento de las oscilaciones de baja frecuencia (OBF) que se encuentran en el ámbito de 0.1 a 0.7 Ha y que son conocidas como oscilaciones entre áreas.
Eddie Araya Padilla
doaj   +1 more source

SLIME MOULD ALGORITHM FOR PRACTICAL OPTIMAL POWER FLOW SOLUTIONS INCORPORATING STOCHASTIC WIND POWER AND STATIC VAR COMPENSATOR DEVICE

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. This paper proposes the application procedure of a new metaheuristic technique in a practical electrical power system to solve optimal power flow problems, this technique namely the slime mould algorithm (SMA) which is inspired by the swarming ...
Ramzi Kouadri   +2 more
doaj   +1 more source

The effect of data preprocessing on the performance of artificial neural networks techniques for classification problems [PDF]

open access: yes, 2012
The artificial neural network (ANN) has recently been applied in many areas, such as medical, biology, financial, economy, engineering and so on. It is known as an excellent classifier of nonlinear input and output numerical data.
Atomi, Walid Hasen
core  

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

Coordinated Excitation and Static Var Compensator Control with Delayed Feedback Measurements in SGIB Power Systems

open access: yesEnergies, 2020
In this paper, we present a nonlinear coordinated excitation and static var compensator (SVC) control for regulating the output voltage and improving the transient stability of a synchronous generator infinite bus (SGIB) power system. In the first stage,
Haris E. Psillakis   +1 more
doaj   +1 more source

Nonlinear finite element analysis of reinforced concrete beams strengthened with textile fine grained mortar [PDF]

open access: yes, 2020
Nowadays, there was an increasing need of repairing and upgrading the reinforced concrete (RC) structure due to the deterioration of the structure. The fibre reinforced polymer (FRP) was commonly used for structural retrofitting purposes.
Abdul Hamid, Noor Azlina   +4 more
core  

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