Results 251 to 260 of about 329,688 (275)
Some of the next articles are maybe not open access.
Study of DC conduction in aged transformer oil under non-uniform high fields
Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1983, 1983This paper emphasises experimental results of DC conduction current in aged transformer oil using point-plane configuration. The effects of oil dehydration and filtration, anode material and field strength are investigated and discussed. It is found that i-t and i-E characteristics display exponential “behaviour and tunneling phenomenon, respectively ...
Abdulaziz A. El-Sulaiman +2 more
openaire +1 more source
Non-uniform changes in nerve-terminal calcium homeostasis during aging
Neurobiology of Aging, 1987Currently unpublished studies indicate reduced rates of calcium clearance from the transmitter release sites in presynaptic terminals of some, but not all, motor nerves in aged rats. Further evidence indicates that deficits in calcium regulation may not necessarily underlie observed age-related changes in evoked transmitter release.
openaire +2 more sources
A Non-Uniform Digital Filter Bank Hearing Aid for Aged People with Hearing Disability
2021A hearing once lost cannot be regained naturally. One of the solutions to this problem is using of Hearing Aids. In this paper we are mainly concentrating on the solution for hearing loss in aged people (presbycusis). High frequencies are mainly affected in Presbycusis.
K. Ayyappa Swamy +3 more
openaire +1 more source
2021 International Conference on Electrical Materials and Power Equipment (ICEMPE), 2021
The frequency domain spectroscopy (FDS) of the transformer oil-paper insulation can be simulated by using the finite element method (FEM). However, the effect of nonuniform aging on calculation results has not been included in previous simulation models. Given this issue, a novel simulation model including non-uniform aging is reported.
Xianhao Fan +3 more
openaire +1 more source
The frequency domain spectroscopy (FDS) of the transformer oil-paper insulation can be simulated by using the finite element method (FEM). However, the effect of nonuniform aging on calculation results has not been included in previous simulation models. Given this issue, a novel simulation model including non-uniform aging is reported.
Xianhao Fan +3 more
openaire +1 more source
Optimum Power Extraction from Non-Uniform Aged PV Array Using Current Collector Optimizer Topology
Elektrichestvo, 2019Harsh outdoor operating circumstances of photovoltaic (PV) array leads to non-uniform aging phenomenon among PV panels which in turn reduces the life span of the PV modules and the energy efficiency of the whole array. Under non-uniform aging conditions for series-parallel (SP) connected PV modules, the characteristics of the entire PV array are ...
A. Refaat, M.H. Osman, N.V. Korovkin
openaire +1 more source
Improvement of Conductivity in Graphene by Ag Nanowires under a Non-Uniform Electric Field
ECS Solid State Letters, 2014We demonstrated the precise positioning of silver nanowires (AgNWs) assisted by a non-uniform electric field to improve the sheet resistance of a graphene layer. The distribution of AgNWs aligned by dielectrophoretic force at a peak-to-peak voltage of 20 V was well matched to the results of the finite element method calculation. The sheet resistance of
G. Lee, S. Oh, B.-J. Kim, J. Kim
openaire +1 more source
Effect of temperature on burst phenomena in aged mineral oil under non-uniform fields
Canadian Electrical Engineering Journal, 1986Presents the experimental results of high field conduction current burst phenomena in aged transformer oil using point-plane configuration. The effect of temperature and field strength variations on burst parameters are emphasized. It was found that bursts can be classified according to their direction. Generally, the amplitude of bursts increases with
Abdulaziz A. El-Sulaiman +2 more
openaire +1 more source
Journal of Earthquake Engineering, 2020
This paper proposes an alternative time-dependent seismic fragility assessment framework considering the variable correlation of structural random parameters for aging highway bridges subject to no...
Huihui Li +3 more
openaire +1 more source
This paper proposes an alternative time-dependent seismic fragility assessment framework considering the variable correlation of structural random parameters for aging highway bridges subject to no...
Huihui Li +3 more
openaire +1 more source
Journal of Power Sources, 2014
Aging of power-optimized commercial 2.3 Ah cylindrical LiFePO4//graphite cells to be used in hybrid electric vehicle is investigated and compared for three different aging procedures; (i) using a s ...
Matilda Klett +9 more
openaire +1 more source
Aging of power-optimized commercial 2.3 Ah cylindrical LiFePO4//graphite cells to be used in hybrid electric vehicle is investigated and compared for three different aging procedures; (i) using a s ...
Matilda Klett +9 more
openaire +1 more source
Minimizing Age of Information in the Internet of Things with Non-Uniform Status Packet Sizes
ICC 2019 - 2019 IEEE International Conference on Communications (ICC), 2019In this paper, a real-time Internet of Things (IoT) monitoring system is considered in which the IoT devices are scheduled to sample underlying physical processes and send the status updates to a common destination. In a real-world IoT, due to the possibly different dynamics of each physical process, the sizes of the status updates for different ...
Bo Zhou, Walid Saad
openaire +1 more source