Results 1 to 10 of about 2,402,463 (266)
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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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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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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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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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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Proceedings of the National Academy of Sciences, 2011 H 2 O will be more resistant to metallization than previously thought. From computational evolutionary structure searches, we find a sequence of new stable and meta-stable structures for the ground state of ice in the 1–5 TPa (10 to 50 Mbar) regime, in the static approximation.
Andreas, Hermann +2 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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Sub-terahertz feedback interferometry and imaging with emitters in 130 nm BiCMOS technology
Scientific Reports, 2023 In this work, we present the effect of self-mixing in compact terahertz emitters implemented in a 130 nm SiGe BiCMOS technology. The devices are based on a differential Colpitts oscillator topology with optimized emission frequency at the fundamental ...
Dmytro B. But +6 more
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High-pressure crystallography [PDF]
Acta Crystallographica Section A Foundations of Crystallography, 2007 Since the late 1950's, high-pressure structural studies have become increasingly frequent, following the inception of opposed-anvil cells, development of efficient diffractometric equipment (brighter radiation sources both in laboratories and in synchrotron facilities, highly efficient area detectors) and procedures (for crystal mounting, centring ...
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Normal Pressure Hydrocephalus — High Pressure Normocephalus [PDF]
Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques, 1980 The case history to be presented spans most of the lifetime of a young lady who is now twenty-two years old, and it reflects the stages of development of our knowledge of several important neurosurgical concepts.
H, Schutz +4 more
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