Results 51 to 60 of about 947,558 (364)

The absoption refrigerator as a thermal transformer [PDF]

open access: yes, 2009
The absorption refrigerator can be considered a thermal transformer, i.e. a device that is analogous to the electric transformer. The analogy is based on a correspondence between the extensive quantities entropy and electric charge and that of the ...
Carnot S   +4 more
core   +1 more source

Voltage regulation considerations for the design of hybrid distribution transformers [PDF]

open access: yes, 2014
The future substation depends on finding a way to mitigate the effects of the drawbacks of the conventional legacy by employing the efficiency of the solid state switches [1].
Alqarni, M, Darwish, M, Radi, MA
core   +1 more source

PCT: Point cloud transformer [PDF]

open access: yesComputational Visual Media, 2020
The irregular domain and lack of ordering make it challenging to design deep neural networks for point cloud processing. This paper presents a novel framework named Point Cloud Transformer (PCT) for point cloud learning.
Meng-Hao Guo   +5 more
semanticscholar   +1 more source

Study on the Method of Calculating Temperature Rise of Transformer [PDF]

open access: yesE3S Web of Conferences, 2020
The internal temperature of the transformer is a key parameter to measure the thermal state of the transformer. The service life of the transformer generally depends on the life of the insulating material, and high temperature is the main reason why ...
Li Tao   +3 more
doaj   +1 more source

Комбінований фільтрокомпенсуючий пристрій

open access: yesElektrotehnìka ta Elektroenergetika, 2010
Пропонується схема комбінованого фільтрокомпенсуючого пристрою. Основні переваги фільтра полягають в автоматичній зміні параметрів компенсації вищих гармонік з мінімальними втратами електричної енергії при передачі реактивної потужності, а також у ...
V. V. Kushch   +3 more
doaj   +1 more source

Less-conventional low-consumption galvanic separated MOSFET-IGBT gate drive supply [PDF]

open access: yes, 2017
A simple half-bridge, galvanic separated power supply which can be short circuit proof is proposed for gate driver local supplies. The supply is made while hacking a common mode type filter as a transformer, as the transformer shows a good insulation, it
Bikorimana, Jean Marie Vianney   +1 more
core   +3 more sources

A Solid State Transformer model for power flow calculations [PDF]

open access: yes, 2017
This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo   +1 more
core   +2 more sources

Power Transformer Vibration Analysis Model Based on Ensemble Learning Algorithm

open access: yesIEEE Access
The inflow of DC magnetic flux into the core of power transformers under DC bias conditions leads to a significant increase in operational losses, noise levels, and vibration amplitudes, posing substantial threats to the stability and reliability of the ...
Baidi Shi   +6 more
doaj   +1 more source

Design Implication of a Distribution Transformer in Solar Power Plants Based on Its Harmonic Profile

open access: yesEnergies, 2021
This article presents a comparative analysis for the design considerations for a solar power generation transformer. One of the main existing problems in transformer manufacturing is in the renewable energy field, specifically the solar power generation,
Iván Rafael Macías Ruiz   +5 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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