Results 51 to 60 of about 675 (131)

Numerical Analysis of the Thermophotovoltaic Energy Transition in the MTPV System

open access: yesJournal of Mechanical Engineering, 2010
Physical and mathematical model is constructed in order to study the energy transition characteristic between the radiation surface and PV cell in the micro-thermophotovoltaic system.In the model,rectangular SiC radiation slice and GaSb PV cell are used,and the non-uniformity of radiation surface temperature distribution and the radiation view factor ...
openaire   +1 more source

Culturally appropriate options for diabetes self‐management: Results from a patient‐centered comparative effectiveness study

open access: yesNatural Sciences, Volume 4, Issue 4, October 2024.
Abstract This project compared the effectiveness of two evidence‐based models of culturally competent diabetes health promotion: the diabetes self‐management support empowerment model (DSMS) and the chronic care model (CCM). Our primary outcome was improvement in patient capacity for diabetes self‐management as measured by the diabetes knowledge ...
Janet Page‐Reeves   +9 more
wiley   +1 more source

Giant radiation heat transfer through the micron gaps

open access: yes, 2011
Near-field heat transfer between two closely spaced radiating media can exceed in orders radiation through the interface of a single black body. This effect is caused by exponentially decaying (evanescent) waves which form the photon tunnel between two ...
Constantin R. Simovski   +6 more
core   +1 more source

Flux weakening control of electric starter-generator based on permanent-magnet machine [PDF]

open access: yes, 2017
The paper presents control analysis and design for a Permanent Magnet Machine (PMM) operated in Flux-Weakening (FW) mode for an aircraft electric starter-generator application.
Bozhko, Serhiy   +4 more
core   +1 more source

Comparison of permanent magnet synchronous machine and permanent magnet flux‐modulated machine in direct drive considering number of rotor poles

open access: yesIET Electric Power Applications, Volume 18, Issue 10, Page 1095-1106, October 2024.
1. The structure of conventional PM motors is modified to boost the developed torque of the motors. 2. Increasing the number of poles is a structural modification to achieve high torque density in PMSMs. 3. The simulation results using the finite elements method (FEM) are presented, and a PMFMM with 36 slots and 40 poles as a case study is subjected to
Saeed Abareshi   +2 more
wiley   +1 more source

Modern Control Techniques and Operational Challenges in Permanent Magnet Synchronous Motors: A Comprehensive Review

open access: yesAutomation
This paper presents a comprehensive overview of permanent magnet synchronous motors (PMSMs), including their classifications, applications, and vector control strategies. It explores various control techniques, including maximum torque per ampere (MTPA),
Mahmoud M. Elkholy   +2 more
doaj   +1 more source

Optimal voltage angle for maximum torque per voltage control of induction machine in deep field‐weakening region

open access: yesIET Power Electronics, Volume 17, Issue 6, Page 764-773, 6 May 2024.
This paper explores the optimization of the stator voltage angle in a rotor flux‐oriented system for induction machine traction drives, with the primary objective of maximizing torque in the deep field‐weakening region. Unlike previous research that often assumed a constant synchronous speed, this work accounts for variations in dq current components ...
Ondrej Lipcak
wiley   +1 more source

Optimal Efficiency and Automatic Current Commands Map Generator for an Interior Permanent Magnet Synchronous Motor in Electric Vehicles

open access: yesApplied Sciences
A systematic and highly efficient current commands generator for an interior permanent magnet synchronous motor (IPMSM) in electric vehicles is proposed.
Shin-Hung Chang, Hsing-Yu Yeh
doaj   +1 more source

Modular Stator Flux and Torque Control of Multi-Three-Phase Induction Motor Drives [PDF]

open access: yes, 2020
direct flux vector control, induction motor drives, modular torque control, multiphase electrical ...
Armando, Eric   +3 more
core   +1 more source

Numerical Study of Heat Transfer and Performance in a Hydrogen-Fueled Micro-Combustor with Gyroid, Lidinoid, and Neovius Structures for Thermophotovoltaic Applications

open access: yesApplied Sciences
This work evaluates a hydrogen-fueled planar micro-combustor featuring three triply periodic minimal surface (TPMS) structures, namely, gyroid, lidinoid, and Neovius matrix lattices, aiming to advance heat transfer processes and enhance system efficiency
Faisal Almutairi
doaj   +1 more source

Home - About - Disclaimer - Privacy