Results 101 to 110 of about 335,047 (274)

FEM based electromagnetic signature analysis of winding inter-turn short-circuit fault in inverter fed induction motor

open access: yesCES Transactions on Electrical Machines and Systems, 2019
The intent of this paper is to analyze the electromagnetic signature of stator winding inter-turn short-circuit fault in a closed loop speed controlled Induction Motor (IM) employing Finite Element Method.
Praveen Kumar N., T.B. Isha
doaj   +1 more source

Technical and vocational skills (TVS): a means of preventing violence among youth in Nigeria [PDF]

open access: yes, 2017
Technical and vocational skills are an important tool for reducing violence among youth, especially in Nigeria, who face security challenges due to different kinds of violence.
Ibrahim, Mohammed   +1 more
core  

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Models and experimental results from the wide aperture Nb-Ti magnets for the LHC upgrade

open access: yes, 2014
MQXC is a Nb-Ti quadrupole designed to meet the accelerator quality requirements needed for the phase-1 LHC upgrade, now superseded by the high luminosity upgrade foreseen in 2021. The 2-m-long model magnet was tested at room temperature and 1.9 K.
Auchmann, B.   +19 more
core   +1 more source

Conductive Bonding and System Architectures for High‐Performance Flexible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
This review outlines bonding technologies and structural design strategies that support high‐performance flexible and stretchable electronics. Bonding approaches such as surface‐activated bonding and anisotropic conductive films, together with system‐level architectures including buffer layers and island‐bridge structures, possess distinct mechanical ...
Kazuma Nakajima, Kenjiro Fukuda
wiley   +1 more source

Grading evaluation method for inter-turn short circuit of permanent magnet traction motor based on deep Gaussian processes

open access: yes机车电传动
The inter-turn short circuit of stator winding is one of the main faults affecting the safe and stable operation of permanent magnet traction motors. Affected by operating conditions, power supply and motor body imbalance, existing methods are difficult ...
DAI Jisheng   +4 more
doaj  

Method and apparatus for measurement of trap density and energy distribution in dielectric films [PDF]

open access: yes, 1976
Trap densities in dielectric films are determined by tunnel injection measurements when the film is incorporated in an insulated-gate field effect transistor.
Maserjian, J.
core   +1 more source

Biomaterials‐Based Hydrogel with Superior Bio‐Mimetic Ionic Conductivity and Tissue‐Matching Softness for Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
By mimicking the ion‐accelerating effect of ion channel receptors in neuron membranes, a biomaterials‐based ionic hydrogel (BIH) is developed, which offers a high ionic conductivity of 7.04 S m−1, outperforming conventional chitosan, cellulose, agarose, starch, and gelatin based ionic hydrogels.
Baojin Chen   +7 more
wiley   +1 more source

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