Results 21 to 30 of about 21,922 (294)

A H2 PEM fuel cell and high energy dense battery hybrid energy source for an urban electric vehicle [PDF]

open access: yes, 2005
Electric vehicles are set to play a prominent role in addressing the energy and environmental impact of an increasing road transport population by offering a more energy efficient and less polluting drive-train alternative to conventional internal ...
Bingham, C M, Schofield, N, Yap, H T
core   +1 more source

Cost-Effective and High-Efficiency Variable-Speed Switched Reluctance Drives With Ring-Connected Winding Configuration [PDF]

open access: yes, 2019
This paper presents a novel converter topology for six-phase switched reluctance motor (SRM) drives, which reduces the number of switches and diodes by half, compared with the conventional asymmetric half-bridge converter, but needs no additional energy ...
Deng, Xu   +4 more
core   +2 more sources

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

open access: yes, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden   +11 more
core   +1 more source

Inversion-based control of electromechanical systems using causal graphical descriptions [PDF]

open access: yes, 1993
Causal Ordering Graph and Energetic Macroscopic Representation are graphical descriptions to model electromechanical systems using integral causality. Inversion rules have been defined in order to deduce control structure step-bystep from these graphical
BARRE, Pierre-Jean   +8 more
core   +9 more sources

Application Research on Deep Convolution Neural Network Based Fault Diagnosis Technology for Traction Converter

open access: yesKongzhi Yu Xinxi Jishu, 2021
Converter is a key component of traction system in electric locomotive. The fault of converter can easily lead to the paralysis of train operation and is one of the most dangerous failures of electric locomotive.
LI Chen   +3 more
doaj  

The Influence of IGBT Aging on the EMI of Traction Converter

open access: yesJournal of Physics: Conference Series, 2020
Abstract The Insulated Gate Transistors (IGBT) is a kind of semiconductor that is prone to aging in power electronic equipment. After aging, the IGBT will not only degrade during its operating performance, but will also reduce the reliability of the electromagnetic compatibility (EMC) in its working circuits.
Q P Feng   +5 more
openaire   +1 more source

Performance Testing and Analysis of Synchronous Reluctance Motor Utilizing Dual-phase Magnetic Material [PDF]

open access: yes, 2017
While interior permanent magnet (1PM) machines have been considered the state-of-the art for traction motors, synchronous reluctance (SynRel) motors with advanced materials can provide a competitive alternative.
Alexander, James P.   +8 more
core   +2 more sources

LASER HEATING NUMERICAL SIMULATION OF TITANIUM-CONTAINING OPTOTHERMAL FIBER CONVERTER AND VEIN WALL DURING ENDOVASAL LASER COAGULATION [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents numerical methods that first studied laser heating of titanium-containing optothermal fiber converter and vein wall, as well as the effect of thermal damage of the vein wall during endovasal laser coagulation with ...
Andrey V. Belikov   +2 more
doaj   +1 more source

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento   +3 more
wiley   +1 more source

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

open access: yesAdvanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro   +3 more
wiley   +1 more source

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