Results 41 to 50 of about 96,700 (242)

Feasibility and Limitations of the Advanced Replica Process for Bioactive Glasses

open access: yesAdvanced Engineering Materials, EarlyView.
Periodic 3D‐printed Kelvin‐cell templates enable a controlled advanced replica process for fabricating highly porous glass lattices. Across P45K9, 45S5, and 13–93, material‐dependent differences in coating, burnout, and shrinkage lead to distinct strut morphologies, while comparable final porosities of 83%–88% are retained.
Swantje Funk   +4 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  

Helium bubble formation in nuclear glass by in-situ TEM ion implantation [PDF]

open access: yes, 2014
The effect of helium implantation fluences in French nuclear borosilicate glass on He bubble nucleation and growth mechanisms was characterised using in-situ TEM experiments.
Greaves, Graeme   +11 more
core   +1 more source

Disorder‐Broadened Topological Hall Phase and Anomalous Hall Scaling in FeGe

open access: yesAdvanced Functional Materials, EarlyView.
By systematically introducing defects into FeGe via ion‐beam modification, we demonstrate that disorder broadens the temperature regime over which the topological Hall effect ‐ a signature of skyrmions or other chiral textures — appears, while also increasing its magnitude.
Chaman Gupta   +11 more
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  

Exchange‐Coupled Two‐Dimensional MOFs

open access: yesAdvanced Functional Materials, EarlyView.
Graphene mediates ferromagnetic coupling between two‐dimensional metal‐organic frameworks and cobalt. Fe‐tetracyanobenzene develops a remanent magnetic response whose orientation follows the cobalt magnetization direction and persists up to room temperature, whereas Ni‐TCNB remains only field‐polarized.
Iulia Cojocariu   +5 more
wiley   +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

Helium Measurements using the Pellet Charge Exchange in Large Helical Device [PDF]

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

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

Hybrid integrated circuits for sound signal processing

open access: yesТехнологія та конструювання в електронній апаратурі, 2011
Developed hybrid integrated circuit with rated supply voltage of 1,4 V, current consumption 0,7 mA and overall dimensions 8×4×3 mm provides soft processing of the audio signal in analog microelectronic equipment.
V. A. Koval’chuk, V. V. Sevast’yanov
doaj  

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