Results 11 to 20 of about 446,660 (328)

Irregular Winding of Pre-preg Fibres Aimed at the Local Improvement of Flexural Properties [PDF]

open access: yesTekstilec, 2017
The main undisputed benefit of using long fibre composite materials, whose properties could be targeted for a particular application, lies in the efficient utilisation of material.
Petr Kulhavy   +4 more
doaj   +1 more source

Vibration Measurement and Numerical Modeling Analysis of Transformer Windings and Iron Cores Based on Voltage and Current Harmonics

open access: yesMachines, 2022
The operating condition and structural state of the converter transformer are closely related to vibration. Abundant harmonics aggravate the vibration of windings and iron cores, resulting in frequent mechanical structural failures, which seriously ...
Peiyu Jiang   +3 more
doaj   +1 more source

Quantized classical response from spectral winding topology [PDF]

open access: yesNature Communications, 2020
Topologically quantized response is one of the focal points of contemporary condensed matter physics. While it directly results in quantized response coefficients in quantum systems, there has been no notion of quantized response in classical systems ...
Linhu Li, Sen Mu, Ching Hua Lee, J. Gong
semanticscholar   +1 more source

Research on localization of partial discharges in transformers based on wideband equivalent circuit

open access: yesZhejiang dianli, 2023
When partial discharge occurs within transformers, the pulse current signal propagates along the winding. Detecting this pulse current signal at both ends of the winding enables the identification of partial discharge within the transformer. To this end,
ZHOU Chenhui   +6 more
doaj   +1 more source

Strand wire winding method in a solenoidal coil with limited geometry for good impedance matching [PDF]

open access: yesArchives of Electrical Engineering, 2023
This paper reports a new strand wire winding method in a solenoidal coil with limited geometry that enables good impedance matching. In the proposed method strand wires are wound layer-by-layer on top of each other allowing one to set equivalent ...
Veli Tayfun Kilic
doaj   +1 more source

Lives Saved Tool (LiST) costing: a module to examine costs and prioritize interventions

open access: yesBMC Public Health, 2017
Background Achieving the Sustainable Development Goals will require careful allocation of resources in order to achieve the highest impact. The Lives Saved Tool (LiST) has been used widely to calculate the impact of maternal, neonatal and child health ...
Lori A. Bollinger   +3 more
doaj   +1 more source

General modeling of the windings for multi-phase ac machines [PDF]

open access: yes, 2010
This paper, which deals with the winding modeling of ac multi-phase machines with a regular distribution of the stator slots, details an original matrix modeling of the stator winding.
CHARPENTIER, Jean-Frederic   +2 more
core   +5 more sources

Development and Characterization of Hybrid, Temperature Sensing and Heating Yarns with Color Change

open access: yesSensors, 2023
A person’s body temperature is an important indicator of their health status. A deviation of that temperature by just 2 °C already has or can lead to serious consequences, such as fever or hypothermia.
Theresa Junge   +4 more
doaj   +1 more source

‘Wind, Wind, Wind, Always Winding Am I’: Dickens’s Metafictional Clockwork

open access: yesThe Review of English Studies, 2022
Abstract This article considers the importance of timepieces and clockwork to Dickens’s conception of composition. Whilst the many clocks and watches that saturate his writing have often been read as indicative of an interest in time, the present study considers what the materiality of timepieces—namely, their markets and mechanisms ...
openaire   +1 more source

Static and Dynamic Evaluation of a Winding Deformation FBG Sensor for Power Transformer Applications

open access: yesSensors, 2019
Power transformer is the most important and expensive equipment used in the electric power industry. Fiber Bragg grating (FBG) sensors has stood out as a flexible and particularly suitable tool for power transformer monitoring being a passive and ...
Aguinaldo Goes de Melo   +6 more
doaj   +1 more source

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