Results 41 to 50 of about 497,436 (275)

Liquid crystal displays for aircraft engineering

open access: yesТехнологія та конструювання в електронній апаратурі, 2009
The operating conditions of LCD monitors as part of aviation onboard instruments are considered. The requirements for the design of an LCD monitor for operation under harsh conditions are formulated.
L. F. Kovalenko   +3 more
doaj  

Cryostat system for temperatures on the order of 2 deg K or less [PDF]

open access: yes, 1976
A cryostat system for cooling a device to a temperature on the order of 2 K or less includes a dewar, in which helium, in other than the superfluid state, is stored.
Miller, C. G., Stephens, J. B.
core   +1 more source

Key mechanistic features of swelling and blistering of helium-ion-irradiated tungsten [PDF]

open access: yes, 2019
Helium-ion-induced swelling and blistering of single-crystal tungsten is investigated using a Helium Ion Microscope for site-specific dose-controlled irradiation (at 25 keV) with analysis by Helium Ion Microscopy, Atomic Force Microscopy and Transmission
Allen, FI, Balooch, M, Hosemann, P
core   +2 more sources

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Nanostructure composite film for sensor controls of humidity

open access: yesТехнологія та конструювання в електронній апаратурі, 2009
Received nanostructure of the composite film allows creating integrated sensor controls of humidity with high sensitivity, stable in time, with linear dependence of capacity from relative humidity practically in all range of its change (3 to 100%) and ...
K. L. Kovalenko   +2 more
doaj  

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi   +7 more
wiley   +1 more source

Helium enrichment theory and exploration ideas for helium-rich gas reservoirs

open access: yesPetroleum Exploration and Development
Using gas and rock samples from major petroliferous basins in the world, the helium content, composition, isotopic compositions and the U and Th contents in rocks are analyzed to clarify the helium enrichment mechanism and distribution pattern and the ...
Shengfei QIN   +8 more
doaj   +1 more source

Long period variables and mass loss in the globular clusters NGC 362 and NGC 2808 [PDF]

open access: yes, 2011
The pulsation periods of long period variables (LPVs) depend on their mass and helium abundance as well as on their luminosity and metal abundance. Comparison of the observed periods of LPVs in globular clusters with models is capable of revealing the ...
Lebzelter, Thomas, Wood, Peter
core   +2 more sources

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler   +9 more
wiley   +1 more source

High-efficiency cathode elements for gas-discharge light sources

open access: yesТехнологія та конструювання в електронній апаратурі, 2009
The use of cathode elements of an arc discharge activator made from a newly developed material — an alloy of iridium with rare-earth metals of the cerium group — has been proposed. Working samples of arc lamps have been manufactured and tested.
V. V. Sevastyanov, V. V. Shutovsky
doaj  

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