Results 131 to 140 of about 43,770 (310)

Integrasi PMSG dan DC-DC Buck-Boost Converter untuk Meregulasi Tegangan Keluaran menggunakan STM32VET407

open access: yesJurnal Elkomika
ABSTRAK Energi terbarukan saat ini banyak digunakan sebagai sumber energi baru ramah lingkungan. Imbasnya, sumber energi terbarukan dikembangkan secara signifikan seperti mikrohidro.
EMANNUEL BAYU SETO   +1 more
doaj   +1 more source

Electric Generators Fitted to Wind Turbine Systems: An Up-to-Date Comparative Study

open access: yes, 2015
International audienceThis paper describes a comparative study allowing the selection of the most appropriate innovative structures for electrical machines for a wind turbine system. This study is based on an exhaustive review of the state of the art and
Benbouzid, Mohamed   +3 more
core   +1 more source

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy   +6 more
wiley   +1 more source

Transparent UV‐Curable Self‐Sanitizing Coatings Applicable to Diverse Surfaces and High‐Touch Screens to Mitigate Deadly Pathogen Transmission

open access: yesAdvanced Functional Materials, EarlyView.
Development of a transparent, self‐sanitizing antimicrobial coating technology applicable to a wide range of materials and surfaces‐including touchscreens, transparent substrates, and metal, plastic, and glass‐regardless of pathogen type. The spray‐coated, UV‐cross‐linked imidazole‐based quaternary ammonium chloride materials provide broad‐spectrum ...
Surjith Kumaran   +6 more
wiley   +1 more source

THE STUDY, DESIGN AND TESTING OF A LINEAR OSCILLATING GENERATOR WITH MOVING PERMANENT MAGNETS [PDF]

open access: yesCarpathian Journal of Electrical Engineering, 2015
This paper presents a study, design and testing of a Linear Oscillating Generator. There are presented the main steps of the magnetic and electric calculations for a permanent magnet linear alternator of fixed coil and moving magnets type. Finally it has
Teodora Susana OROS (POP)   +2 more
doaj  

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

open access: yesAdvanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Modeling and Simulation for Direct-drive Permanent Magnet Wind Power System

open access: yesGong-kuang zidonghua, 2010
A mathematical model of direct-drive permanent magnet wind power system was built,which includes wind turbine model,drive train model,permanent magnet synchronous generator model and converter model as well.According to the maximum wind tracking ...
MA Wei, BAO Guang-qing
doaj  

QUASI-STATIC FIELD ANALYSIS OF PERMANENT MAGNET GENERATOR USING H-HIERARCHICAL ADAPTIVE FINITE ELEMENT METHOD [PDF]

open access: yesJournal of Engineering Science and Technology, 2017
Researchers have always shown keen interest in predetermining the electromagnetic field behavior inside an electrical machine at the design stage. Material properties of permanent magnet, selection of optimum air gap during the electromagnetic, thermal ...
CHETAN VASUDEVA, SANJAY MARWAHA
doaj  

An Ultrafast Self‐Gelling Versatile Hydrogel for Rapid Infected Burn Wound Repair in Military Medicine

open access: yesAdvanced Functional Materials, EarlyView.
A self‐gelling PG@PAC (POD/Gel‐CDH@PA/CHX) powder is developed for infected burn care in austere settings. Upon contact with wound exudate, it instantly forms an adhesive hydrogel, providing simultaneous hemostasis, broad‐spectrum antibacterial activity, reactive oxygen species scavenging, and immunomodulation. In a murine model of S.
Liping Zhang   +14 more
wiley   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar   +11 more
wiley   +1 more source

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