Results 11 to 20 of about 4,440,599 (246)

Effect on oxides on surface topography and thermal contact resistance [PDF]

open access: yes, 1979
The effect of oxides on the topographies of various random engineering surfaces and steady-state thermal contact resistances between oxidefree and oxidized metallic surfaces in contact in high vacua have been investigated. The results of many previous
Mian, M. N.
core   +7 more sources

The relationship between contact resistance and contact force on Au coated carbon nanotube surfaces [PDF]

open access: yes, 2007
Carbon-Nanotube (CNT) coated surfaces are investigated to determine the electrical contact performance under low force conditions. The surfaces under investigation are multi-walled CNTs formed on a Silicon substrate and coated with an Au film.
J.W. McBride   +5 more
core   +1 more source

Determination of the Fault Zone by the Level of Short-Circuit Currents

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2018
The methods of determination the fault zone according to the parameters of the emergency mode, which can be used to improve the performance of technical perfection of current protection lines of distributive 6–10 kV one-way power networks, are considered.
F. A. Romaniuk   +2 more
doaj   +1 more source

Contact-Resistance-Free Stretchable Strain Sensors with High Repeatability and Linearity

open access: yes, 2021
Most of the existing stretchable strain sensors are based on the contact-resistance mechanism, where the stretchability and resistance variation depend on the change of the contact relationship of the conductive microstructures.
Rui Li (4631)   +25 more
core   +1 more source

First principles study of adsorption of multilayer gold atoms on graphene doped with B under various concentrations

open access: yesCailiao gongcheng, 2019
The high contact resistance between graphene and metal retards the application of graphene in micro-and nano-electronics. Boron (B) doping can effectively reduce the contact resistance of graphene.
LU Zi-long, AN Li-bao, LIU Yang
doaj   +1 more source

In-process tool flank wear identification in face milling using Holm's contacts theory

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
Holm's contacts theory is a theory experimentally obtained for the contact electrical resistance value of metal-to-metal contacts. It has been reported that the value of this contact electrical resistance changes with the area of the contact surface
Mitsuaki MURATA   +3 more
doaj   +1 more source

Contact resistance of carbon-Li(Ni,Mn,Co)O2 interfaces [PDF]

open access: yes, 2022
Electronic resistance in lithium-ion battery positive electrodes is typically attributed to the bulk resistance of the active material and the network resistance of the carbon additive.
Stephen Dongmin, Kang   +2 more
core   +1 more source

Effect of Metallic Bipolar Plates Fillet Radii on Fuel Cell Performance

open access: yesEnergies, 2021
This paper studies the effects of compression, deformation, and the contact area in the membrane electrode assembly (MEA). The electrical impedance of fuel cell stacks due to the assembly of the metallic bipolar plates is also considered.
Chien-Ju Hung   +4 more
doaj   +1 more source

The contact resistance performance of gold coated carbon-nanotube surfaces under low current switching [PDF]

open access: yes, 2013
Multi-Walled CNT (MWCNT) are synthesized on a silicon wafer and sputter coated with a gold film. The planar surfaces are mounted on the tip of a piezo-electric actuator and mated with a gold coated hemispherical surface to form an electrical contact ...
Chianrabutra, Chamaporn   +3 more
core   +1 more source

To the organization the repair production of contactors for electrical equipment of diesel locomotives [PDF]

open access: yesE3S Web of Conferences
Based on the theory of reliability and probability, taking into account the performance testing of mainline diesel locomotives at the Havast locomotive depot, a new methodology has been proposed regarding the frequency of performing a certain amount of ...
Ablyalimov Oleg, Kalimbetova Zhansaya
doaj   +1 more source

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