Results 1 to 10 of about 415,138 (304)

Dual-Transformer Series Resonant Converter with Full Range ZVS Operation

Shanghai Jiaotong Daxue xuebao
A dual-transformer series resonant converter (DTSRC) is proposed to solve the problem of excessive return power and loss of zero voltage switching (ZVS) operation under light load in the dual bridge resonant converter (DBRC). A dual-transformer structure
LI Yinan, HU Song, LI Xiaodong, CHEN Wu, ZHONG Liping, YANG Qingqing
doaj   +1 more source

Air and Bone Conduction Frequency-specific Auditory Brainstem Response in Children with Agenesis of the External Auditory Canal

International Archives of Otorhinolaryngology, 2017
Introduction The tone-evoked auditory brainstem responses (tone-ABR) enable the differential diagnosis in the evaluation of children until 12 months of age, including those with external and/or middle ear malformations.
Pricila Sleifer, Dayane Domeneghini Didoné, Ísis Bicca Keppeler, Claudine Devicari Bueno, Rudimar dos Santos Riesgo   +4 more
doaj   +1 more source

Precise modelling of switching and conduction losses in cascaded h-bridge multilevel inverters [PDF]

, 2014
Nowadays, voltage source multilevel inverters are being used extensively in industry due to its many advantages, compared to conventional two level inverters, such as higher output voltage at low switching frequency, low voltage stress(dv/dt), lower ...
Alamri, B, Darwish, M
core   +1 more source

Research on Junction Temperature Smooth Control of SiC MOSFET Based on Body Diode Conduction Loss Adjustment

Energies
In a converter of actual working condition, the change in the current and voltage of the power device will cause the junction temperature to fluctuate greatly. This device is subjected to high thermal stress due to the change in the junction temperature.
Junke Wu, Yunpeng Wei, Yuntao Wu, Zhou Wang, Xingyu Li, Xiangnan Wei   +5 more
doaj   +1 more source

Hearing disorders in lupus patients: correlation with duration and severity of the disease

Egyptian Rheumatology and Rehabilitation, 2022
Background Hearing loss can greatly affect the overall quality of life. Several studies have reported that patients with SLE may suffer from audio-vestibular manifestations.
Saad Mahmoud Alzokm, Soliman S. Ghanem
doaj   +1 more source

Conductive Hearing Loss and Bone Conduction Devices: Restored Binaural Hearing? [PDF]

, 2011
An important aspect of binaural hearing is the proper detection of interaural sound level differences and interaural timing differences. Assessments of binaural hearing were made in patients with acquired unilateral conductive hearing loss (UCHL, n = 11) or congenital UCHL (n = 10) after unilateral application of a bone conduction device (BCD), and in ...
Agterberg, M.J.H., Hol, M.K.S., Cremers, C.W.R.J., Mylanus, E.A.M., Opstal, A.J. van, Snik, A.F.M.   +5 more
openaire   +2 more sources

Switching-Cell Arrays - An Alternative Design Approach in Power Conversion [PDF]

, 2018
© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new ...
Busquets Monge, Sergio, Caballero Díaz, Luis   +1 more
core   +2 more sources

Cu─X Bonds Regulated Conduction and Polarization Loss in Conductive Metal‐Organic Framework Under Electromagnetic Field

Advanced Science
Conduction and polarization are known to profoundly impact conductive metal–organic frameworks (c‐MOFs) for their applications in electromagnetic wave (EMW) absorption.
Siyao Cheng, Qinglin Zhou, Daohu Sheng, Wei Dong, Jinhu Dou, Yuanbiao Huang, Rong Cao, Aming Xie, Roland A. Fischer, Soumya Mukherjee, Weijin Li   +10 more
doaj   +1 more source

Hot bubbles of planetary nebulae with hydrogen-deficient winds I. Heat conduction in a chemically stratified plasma

, 2015
Heat conduction has been found a plausible solution to explain discrepancies between expected and measured temperatures in hot bubbles of planetary nebulae (PNe).
Rühling, Ute, Sandin, Christer, Schönberner, Detlef, Steffen, Matthias   +3 more
core   +1 more source

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

, 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, Gai, Yaohui, Martin, Richard, Mecrow, Barrie, Wu, Haimeng   +4 more
core   +2 more sources