Results 61 to 70 of about 3,205,387 (153)

AC Loss Characteristics of Bi-2223 Silver-Sheathed Oxide Superconducting Tape [PDF]

open access: yes
AC losses of non-inductively wound Bi-2223 Ag-sheathed superconducting tape have been investigated by means of ac-transport current and ac-magnetization techniques.
Yokokawa, Hiroki   +7 more
core   +1 more source

A parameter for IL-10 and TGF-ß mediated regulation of HIV-1 specific T cell activation provides novel information and relates to progression markers. [PDF]

open access: yesPLoS ONE, 2014
HIV replication is only partially controlled by HIV-specific activated effector T cells in chronic HIV infection and strategies are warranted to improve their efficacy.
Andreas Lind   +5 more
doaj   +1 more source

Design and Control of Advanced Uninterruptible Power Supplies With SiC MOSFETs for Enhanced Performance and Efficiency

open access: yesIEEE Access
This paper proposes a high-performance high-efficiency single-phase uninterruptible power supply (UPS), which uses totem pole power factor correction in AC/DC stage and three-level T-type inverter in DC/AC stage.
Quoc Nam Trinh, Thanh Hai Nguyen
doaj   +1 more source

Butterfly optimizer-assisted optimal integration of REDG units in hybrid AC/DC distribution micro-grids based on minimum operational area

open access: yesJournal of Electrical Systems and Information Technology, 2021
This paper presents the impact of optimal location and sizing of renewable and non-renewable-based distributed generators in the AC/DC micro-grid system using the latest optimizer called butterfly optimization algorithm with an aim to minimize power loss.
Satish Kumar Injeti
doaj   +1 more source

AC loss measurements with a cryocooled sample [PDF]

open access: yesIEEE Transactions on Appiled Superconductivity, 2001
A new cryostat cooled by a closed-cycle Cryomech GB-37 cryocooler for superconductor measurements at temperatures down to 20 K is described. The sample is conductively coupled to the cold stage so as to minimize vibration and thermal stresses. AC losses have been measured calorimetrically in several high-temperature superconductor coils that have been ...
S.W. Schwenterly   +7 more
openaire   +1 more source

Light Induced AC Loss in Amorphous Silicon [PDF]

open access: yes, 1989
Light-induced AC losses have been observed in sputtered a-Si, a-Si:H and a-Ge. The aim of this work was to investigate the effect of light on the ac loss in sputtered a-Si and glow discharge a-Si:H and compare the results with previous research. The glow
Anderson, Michael James
core   +4 more sources

AC loss in a high-temperature superconducting coil [PDF]

open access: yes, 1998
In a typical superconducting coil made of BSCCO/Ag tape, both amplitude and direction of the magnetic field determine the critical current, resistive voltage and AC loss. The distribution of the magnetic field along and across the superconducting tape in
ten Kate, H.H.J.; id_orcid   +9 more
core   +1 more source

Effects of a novel peptide Ac-SDKP in radiation-induced coronary endothelial damage and resting myocardial blood flow

open access: yesCardio-Oncology, 2018
Background Cancer survivors treated with thoracic ionizing radiation are at higher risk of premature death due to myocardial ischemia. No therapy is currently available to prevent or mitigate these effects.
Umesh C. Sharma   +11 more
doaj   +1 more source

Thermal Diffusion and AC Loss in High-Tc Superconductors,

open access: yes, 2000
The influence of thermal diffusion and temperature nonuniform distribution on ac loss of high-temperature superconductors has been investigated. Asymptotic solutions of magnetic and electric fields and ac loss are presented in the form of power series of
Zhang, Guangqing   +5 more
core   +1 more source

Coordinated control of power loss and capacitor voltage ripple reduction for AC voltage boosted FBSM MMC with second harmonic circulating current injection

open access: yesHigh Voltage, 2018
Reducing the converter loss, sub-module voltage ripple and handling DC short-circuit faults in high-voltage direct current systems are crucial for the economical and reliable operation of modular multilevel converters (MMCs).
Muchao Xiang   +3 more
doaj   +1 more source

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