Results 21 to 30 of about 150,466 (305)

A Single-Switch DC-DC Nonisolated Boost and Buck-Boost Converters With Wide Voltage Gain for Unipolar and Bipolar DC Microgrids

open access: yesIEEE Open Journal of Power Electronics
DC microgrids have begun to play a significant role within the broader landscape of the electric distribution systems. There are different structures for these microgrids in which their inherent structural characteristics require the development of novel
V. Fernao Pires   +4 more
doaj   +1 more source

On the Implementation of Fuzzy VMC for an Under Actuated System

open access: yesIEEE Access, 2019
Most of control strategies are based on complex mathematical equations and the success of them is directly related to the precise acquisition of the mathematical model of the system.
Sabri Bicakci
doaj   +1 more source

Cumulative Social Disadvantage and Disease Activity in Juvenile Idiopathic Arthritis: A Childhood Arthritis and Rheumatology Research Alliance Registry Study

open access: yesArthritis Care &Research, EarlyView.
Objective Social determinants of health (SDOH) contribute to juvenile idiopathic arthritis (JIA) disparities, but most studies have assessed SDOH independently rather than cumulatively across individual, family, and neighborhood levels. Using a socioecological framework, we investigated the relationship among cumulative social disadvantage ...
William Daniel Soulsby   +448 more
wiley   +1 more source

Gastrointestinal Mucormycosis in a two-year-old child: A clinical and radiological enigma

open access: yesMedical Mycology Case Reports, 2019
Mucormycosis is a rare, fatal angioinvasive infection occurring in immunocompromised individuals. Gastrointestinal mucormycosis is rare variety with high mortality rate.
Mahajan Nidhi   +4 more
doaj   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Are bilateral idiopathic clubfeet more severe than unilateral feet? A severity and treatment analysis

open access: yesJournal of Orthopaedic Surgery, 2018
Introduction: Evidences suggest that different subgroups of idiopathic clubfoot exist with differences in severity and treatment outcomes. This study compares the severity and treatment outcomes of unilateral and bilateral clubfoot. Material and methods:
Anil Agarwal   +3 more
doaj   +1 more source

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

open access: yesAdvanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin   +2 more
wiley   +1 more source

Dyslipidemia and atherogenic indexes in children with transfusion-dependent thalassemia

open access: yesHematology, Transfusion and Cell Therapy
Objective: This study endeavored to assess the lipid profile and atherogenic lipid indexes in children with transfusion-dependent thalassemia (TDT) and to compare them with matched healthy children.
Sanghamitra Ray   +5 more
doaj   +1 more source

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

open access: yesAdvanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe   +4 more
wiley   +1 more source

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao   +3 more
wiley   +1 more source

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