Results 51 to 60 of about 186,527 (312)

Helium in Natural Gas [PDF]

open access: yesScience, 1906
n ...
Cady, H. P., Mcfarland, D. F.
openaire   +4 more sources

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

open access: yesAdvanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk   +6 more
wiley   +1 more source

High-power voltage inverter with a special power IC

open access: yesТехнологія та конструювання в електронній апаратурі, 2004
This paper presents the results of designing a voltage inverter using a power IC for energy-efficient equipment. The operating principle of the designed inverter is described.
G. I. Gavrilyuk   +3 more
doaj  

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

open access: yesAdvanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi   +9 more
wiley   +1 more source

Helium Measurements using the Pellet Charge Exchange in Large Helical Device

open access: yes, 2007
In Large Helical Device (LHD), it is possible to perform the simulation experiment of the α particle heating by using the ion cyclotron resonance heating (ICH) because high-energy particle generated by ICH is well confined in the plasma.
VESCHEV, E.   +6 more
core   +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  

Application of Ibuprofen Sodium Dihydrate for Thermochemical Energy Storage

open access: yesAdvanced Functional Materials, EarlyView.
Ibuprofen sodium dihydrate is introduced as a durable organic salt hydrate for low‐temperature thermochemical energy storage, operating within 60°C–110°C with high energy density. At the material level, it delivers ∼99.9% cycling efficiency over 150 cycles without deliquescence, enabled by a dual energy‐storage mechanism coupling dehydration and phase ...
Kavin Chakravarthy Thangaraj   +10 more
wiley   +1 more source

Negative ion resonance measurements in the autoionising region of helium measured across the complete angular scattering range (0-180 degrees). [PDF]

open access: yes, 2013
Excitation function measurements for the decay of the 2s22p 2P and 2s2p2 2D triply excited negative ion resonances in helium to singly excited n=2 states have been measured.
King, G   +17 more
core   +1 more source

A comparative study of single-particle cryo-EM with liquid-nitrogen and liquid-helium cooling

open access: yesIUCrJ, 2019
Radiation damage is the most fundamental limitation for achieving high resolution in electron cryo-microscopy (cryo-EM) of biological samples. The effects of radiation damage are reduced by liquid-helium cooling, although the use of liquid helium is more
Olivia Pfeil-Gardiner   +3 more
doaj   +1 more source

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