Results 31 to 40 of about 415,138 (304)

Dielectric materials for high-temperature capacitors

open access: yesIET 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   +6 more
doaj   +1 more source

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

open access: yesThe 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   +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

open access: yesJournal 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   +4 more
doaj   +1 more source

Bone Conduction Improvement After Surgery for Conductive Hearing Loss [PDF]

open access: yesIndian Journal of Otolaryngology and Head & Neck Surgery, 2011
The objective is to evaluate change in post-operative bone conduction in patients who underwent surgery for conductive/mixed hearing loss due to various reasons. The study design is of retrospective case review and tertiary referral center setting. Five-hundred patients with unilateral conductive/mixed hearing loss were divided into five equal groups ...
H, Vijayendra, Bhavin, Parikh
openaire   +2 more sources

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

open access: yesHigh 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

Evaluation of Frequency and Temperature Dependence of Power Losses Difference in Parallel IGBTs

open access: yesIEEE Access, 2020
With the development of high power converters, safe operation of IGBT modules with parallel chips is of increasing importance. IGBT can work normally in safe range in the initial operation even if current imbalance is happening.
Jianxiong Yang   +3 more
doaj   +1 more source

CONDUCTIVE HEARING LOSS IN BIGHORN SHEEP [PDF]

open access: yesJournal 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.   +4 more
openaire   +3 more sources

New patents on topical anesthetics. [PDF]

open access: yes, 2014
Anesthesia is defined as a total or partial loss of sensation and it may be general, local or topical, depending on the method of drug administration and area of the body affected.
CALVIERI, Stefano   +6 more
core   +1 more source

Sound Localization and Lateralization by Bilateral Bone Conduction Devices, Middle Ear Implants, and Cartilage Conduction Hearing Aids

open access: yesAudiology Research, 2021
Sound localization in daily life is one of the important functions of binaural hearing. Bilateral bone conduction devices (BCDs), middle ear implants, and cartilage conduction hearing aids have been often applied for patients with conductive hearing loss
Kimio Shiraishi
doaj   +1 more source

Valence band excitations in V_2O_5 [PDF]

open access: yes, 1999
We present a joint theoretical and experimental investigation of the electronic and optical properties of vanadium pentoxide. Electron energy-loss spectroscopy in transmission was employed to measure the momentum-dependent loss function. This in turn was
A. Chakrabarti   +31 more
core   +3 more sources

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