Results 91 to 100 of about 4,626 (306)

Orbifold E-functions of dual invertible polynomials

open access: yesJournal of Geometry and Physics, 2016
12 ...
Wolfgang Ebeling   +2 more
openaire   +2 more sources

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright   +10 more
wiley   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Optimized Dual Two-Level Inverter for Safe and Reliable Operation of Machines with Superconductive Stator Windings

open access: yes, 2019
This paper aims to present an optimized inverter topology, based on the dual two-level inverter, for feeding an open-end winding electrical machine with superconductive stator windings and a superconductive rotor.
Stock, Alexander   +5 more
core   +1 more source

Modified Dual-stage Inverter Applied in a Three-phase Grid-connected Pv System Using Behavior Matching Technique

open access: yesEletrônica de Potência, 2013
This paper presents a grid-connected PV system in a centralized configuration and constructed through a three-phase dual-stage inverter. In this topology, usually, a DC-DC converter performs the maximum power point tracking (MPPT) and an inverter is ...
Marcio M. Casaro   +3 more
doaj   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

open access: yesAdvanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge   +8 more
wiley   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

A 500 kW Grid-connected Photovoltaic Inverter with Double Modules Paralleling

open access: yesKongzhi Yu Xinxi Jishu, 2014
It introduced the engineering design and techincal specifications of a 500kW grid-connected photovoltaic inverter with double modules paralleling. With multi-mode optimal running characteristics of dual MPPT based on single core respectively control and ...
GUAN Rende   +3 more
doaj  

Vector control of the single-phase inverter based on the extended and virtual circuits

open access: yesCES Transactions on Electrical Machines and Systems, 2018
A vector control based on the extended equivalent circuit and virtual circuits is proposed for the single-phase inverter. By the extended circuit, the other two phase voltages can be extended by the output voltage of the single-phase inverter so as to ...
Tao Xu   +7 more
doaj   +1 more source

Conditions for the invertibility of dual energy data

open access: yes, 2017
The Alvarez-Macovski method [Alvarez, R. E and Macovski, A., "Energy-selective reconstructions in X-ray computerized tomography", Phys. Med. Biol. (1976), 733--44] requires the inversion of the transformation from the line integrals of the basis set coefficients to measurements with multiple x-ray spectra.
openaire   +2 more sources

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