Results 1 to 10 of about 7,394,052 (219)
Energies, 2022 In this paper, a two-dimensional axisymmetric module of gas arc extinguishing was simulated using energy balance theories. We used simulation to study the energy distribution change during the gas arc-extinguishing process.
Qiwen He +7 more
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Molecules, 2021 Stable, oil-in-water nanoemulsions containing astaxanthin (AsX) were produced by intense fluid shear forces resulting from pumping a coarse reagent emulsion through a self-throttling annular gap valve at 300 MPa.
Gary B. Smejkal +4 more
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Role of dislocations in nitride laser diodes with different indium content
Scientific Reports, 2021 In this work we investigate the role of threading dislocations in nitride light emitters with different indium composition. We compare the properties of laser diodes grown on the low defect density GaN substrate with their counterparts grown on sapphire ...
Agata Bojarska-Cieślińska +6 more
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Plasmons in AlGaN/GaN grating-gate structure probing with 300 K background illumination
AIP Advances, 2023 We show that terahertz plasmons in AlGaN/GaN grating-gate structures efficiently modulate the reflection of room temperature thermal radiation, leading to spectra that are in agreement with the measurements of plasmon absorption using high-power external
M. Dub +8 more
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Bidirectional light-emitting diode as a visible light source driven by alternating current
Nature Communications, 2023 Gallium nitride-based light-emitting diodes have revolutionized the lighting market by becoming the most energy-efficient light sources. However, the power grid, in example electricity delivery system, is built based on alternating current, which raises ...
Mikołaj Żak +10 more
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Hidden fluid mechanics: Learning velocity and pressure fields from flow visualizations
Science, 2020 Machine-learning fluid flow Quantifying fluid flow is relevant to disciplines ranging from geophysics to medicine. Flow can be experimentally visualized using, for example, smoke or contrast agents, but extracting velocity and pressure fields from this ...
M. Raissi, A. Yazdani, G. Karniadakis
semanticscholar +1 more source
The impact of point defects in n-type GaN layers on thermal decomposition of InGaN/GaN QWs
Scientific Reports, 2021 The aim of this paper is to give an experimental evidence that point defects (most probably gallium vacancies) induce decomposition of InGaN quantum wells (QWs) at high temperatures.
Mikolaj Grabowski +10 more
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Room-Temperature Synthesis of Tubular Hexagonal Boron Nitride under Pressure
Crystals, 2023 Hexagonal boron nitride (h-BN) exhibits interesting optical and mechanical properties, including chemical and thermal stability. Extensive techniques have been applied for the realization of h-BN at high temperatures.
Junkai Li +4 more
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Nano- and microsized heterodiamonds obtained from mixtures of carbon nitride and melamine with boron [PDF]
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017 The paper presents experimental results of the synthesis under high pressure and temperature conditions of individual nano- and micron-sized heterodiamond crystals from mixtures of carbon nitride and melamine with boron.
V.P. Filonenko +2 more
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Phase transition mechanism and bandgap engineering of Sb2S3 at gigapascal pressures
Communications Chemistry, 2021 Antimonite (Sb2S3) has potential applications for solar energy, but how its layered structure changes under pressure is incompletely understood. Here diamond anvil cell experiments supported by first principles calculations offer a structural explanation
Zhongxun Cui +9 more
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