Results 21 to 30 of about 26,487 (264)

Modelling of High Frequency Converter Transformer with Floating Active Inductor

open access: yesElektronika ir Elektrotechnika, 2018
As number of digital electronics and power electronics based devices has risen recently, the fields of application for high frequency transformers have been increased.
Mustafa Konal   +3 more
doaj   +1 more source

Health Analysis of Transformer Winding Insulation Through Thermal Monitoring and Fast Fourier Transform (FFT) Power Spectrum

open access: yesIEEE Access, 2021
This paper presents a health analysis technique for transformer winding insulation through thermal monitoring and Fast Fourier Transform (FFT) power spectrum.
Muhammad Aslam   +6 more
doaj   +1 more source

A New Modular Multilevel AC/AC Converter Using HF Transformer

open access: yesIEEE Access, 2020
This paper proposes a new modular multilevel AC/AC converter using high-frequency (HF) transformer, which has the advantages of modular design, easy expansion, high power density, no circulation current, good output voltage waveform quality and low cost.
Yongqing Meng   +6 more
doaj   +1 more source

Electric Field Simulations and Analysis for High Voltage High Power Medium Frequency Transformer

open access: yesEnergies, 2017
The electronic power transformer (EPT) raises concerns for its notable size and volume reduction compared with traditional line frequency transformers.
Pei Huang, Chengxiong Mao, Dan Wang
doaj   +1 more source

Convolution-Transformer Adaptive Fusion Network for Hyperspectral Image Classification

open access: yesApplied Sciences, 2022
Hyperspectral image (HSI) classification is an important but challenging topic in the field of remote sensing and earth observation. By coupling the advantages of convolutional neural network (CNN) and Transformer model, the CNN–Transformer hybrid model ...
Jiaju Li   +5 more
doaj   +1 more source

Improving Vision Transformers by Revisiting High-Frequency Components

open access: yes, 2022
The transformer models have shown promising effectiveness in dealing with various vision tasks. However, compared with training Convolutional Neural Network (CNN) models, training Vision Transformer (ViT) models is more difficult and relies on the large-scale training set.
Jiawang Bai   +5 more
openaire   +2 more sources

Low and high frequency model of three phase transformer by frequency response analysis measurement

open access: yesOpen Physics, 2018
The behavior analysis of the transformer is usually achieved by the frequency response analysis (FRA), which is obtained by the application of a very low AC voltage in over a wide frequency range.
Chaouche Moustafa Sahnoune   +2 more
doaj   +1 more source

The Role of “Adult‐Onset” Cancer Predisposition Genes in Pediatric Cancer: A Comprehensive Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Current literature estimates that 10% of pediatric cancers are caused by pathogenic or likely pathogenic (P/LP) germline variants in cancer predisposition genes (CPGs). Variants in CPGs thought to increase cancer risk exclusively during adulthood are referred to as “adult‐onset” CPGs (aoCPGs).
Maria Rozo   +5 more
wiley   +1 more source

High frequency transformer computer modeling [PDF]

open access: yes2007 Australasian Universities Power Engineering Conference, 2007
Frequency response analysis (FRA) technique is nowadays widely used in both factory and field applications as a diagnostic tool for power transformers. The main problem about FRA techniques is to interpret the observed evolution of the frequency response in order to identify failures.
Ahmed A. Siada, Syed Islam
openaire   +1 more source

Phase Angle as an Early Functional Biomarker of Cancer‐Related Fatigue in Pediatric Oncology: A Prospective Longitudinal Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior   +11 more
wiley   +1 more source

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