Results 21 to 30 of about 148,827 (308)

Investigation of efficient multilevel inverter for photovoltaic energy system and electric vehicle applications

Electrical engineering & Electromechanics, 2023
Introduction. This research presents a simple single-phase pulse-width modulated 7-level inverter topology for renewable system which allows home-grid applications with electric vehicle charging.
E. Parimalasundar, R. Jayanthi, K. Suresh, R. Sindhuja   +3 more
doaj   +1 more source

Bone-anchored hearing aids for people with bilateral hearing impairment: a systematic review [PDF]

, 2011
BACKGROUND: Bone-anchored hearing aids (BAHAs) are indicated for people with conductive or mixed hearing loss who can benefit from amplification of sound.
Sheehan, P.Z., Clegg, A.J., Colquitt, J.L., Mitchell, T.E., T.E. Mitchell, A.J. Clegg, P.Z. Sheehan, D.M. Baguley, Loveman, E., D.W. Proops, P. Harris, J. Jones, Harris, P., Welch, K., K. Welch, J.L. Colquitt, Jones, J., Baguley, D.M., Proops, D.W., E. Loveman   +19 more
core   +1 more source

Capacitor Commutation Method for MVDC Hybrid Circuit Breakers

Designs, 2021
The medium voltage DC (MVDC) type system can connect multiple terminals to a common MVDC bus, so it is possible to connect several renewable DC power sources to the common MVDC bus, but a DC circuit breaker is needed to isolate short circuit accidents ...
Hyosung Kim
doaj   +1 more source

CONDUCTIVE HEARING LOSS IN BIGHORN SHEEP [PDF]

Journal of Wildlife Diseases, 1995
In January 1993 we simulated a conductive hearing loss in three Mexican bighorn sheep (Ovis canadensis mexicana) by placing bone wax or saline solution in their ear canals. Our objective was to test whether lesions of the external auditory canal caused by psoroptic mites (Psoroptes ovis) may lead to conductive hearing loss in bighorn sheep. We assessed
Norrix, L. W., Deyoung, D. W., Krausman, P. R., Etchberger, Rich Carl, Glattke, T. J.   +4 more
openaire   +3 more sources

Research Paper: The analysis of Governing Thermodynamics of Plasma Waste Incinerator, Temperature Measurement and Analysis of Burning Chamber and Calculation of Electrical Arc Temperature [PDF]

فیزیک کاربردی ایران
Using the experimental results and data, the thermodynamic characteristics and thermal analysis of the electrical arc of torch electrodes and energy deposition in the waste-incinerator primary designed chamber were investigated. The temperature of arc in
Nader Morshedian, Narges Beigmohammadi
doaj   +1 more source

Dielectric materials for high-temperature capacitors

IET Nanodielectrics, 2018
Dielectric materials with excellent energy storage capability at elevated temperatures are critical to meet the increasing demand of electrical energy storage and power conditioning at extreme conditions such as hybrid electric vehicles, underground oil ...
Baoyan Fan, Feihua Liu, Guang Yang, He Li, Guangzu Zhang, Shenglin Jiang, Qing Wang   +6 more
doaj   +1 more source

Frequency-domain-based complete loss model for 10 kV/1 MW solid-state transformer

The Journal of Engineering, 2019
This study proposes a frequency-domain-based loss model for dual active bridge (DAB) inside modular multi-level cascaded solid-state transformer (SST). Previously, the loss model is mainly derived in the time domain and requires enormous modelling effort.
Tao Liu, Xiang Hao, Weizeng Liu, Zhi Li, Xiangen Yu, Jie Zeng, Jianzong He   +6 more
doaj   +1 more source

Neonatal Deletion of Hand1 and Hand2 within Murine Cardiac Conduction System Reveals a Novel Role for HAND2 in Rhythm Homeostasis

Journal of Cardiovascular Development and Disease, 2022
The cardiac conduction system, a network of specialized cells, is required for the functioning of the heart. The basic helix loop helix factors Hand1 and Hand2 are required for cardiac morphogenesis and have been implicated in cardiac conduction system ...
Rajani M. George, Shuai Guo, Beth A. Firulli, Michael Rubart, Anthony B. Firulli   +4 more
doaj   +1 more source

Balanced Conduction Loss Distribution among SMs in Modular Multilevel Converters [PDF]

, 2018
Due to the parameter mismatch, the unbalanced power loss distribution among SMs in the modular multilevel converter (MMC) can be introduced and further deteriorated by the low-frequency asynchronous switching transients related to no-carrier modulation ...
Zhang, Yi; id_orcid, Huai Wang, Zhongxu Wang, Wang, Zhongxu, Yi Zhang, Blaabjerg, Frede; id_orcid, Frede Blaabjerg, Wang, Huai   +7 more
core   +1 more source

Semiconductor loss calculation of DC–DC modular multilevel converter for HVDC interconnections

High Voltage, 2018
DC–DC modular multilevel converter (DC–DC MMC) is an attractive candidate for high-voltage DC (HVDC) interconnections since it can provide the required voltage matching, galvanic isolation and flexible power control abilities.
Shanshan Zhao, Yu Chen, Li Peng
doaj   +1 more source