Results 211 to 220 of about 695,127 (377)
On the Helium and Hydrogen Content of the Interior of the Stars
, 1938 Bengt Strömgren
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Advanced Photonics Research, EarlyView.In this article, pulsed laser diffusion enhancement in liquids as an analytically validated laser extraction in liquids method of coffee suspensions in a defined low fluence window is presented. The results confirm the generation of a unique aroma profile and reduced acidity, which is neither attributed to changes in the specific surface area nor ...
Tina Friedenauer +15 more
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The Spectrum of Helium in the Extreme Ultra-violet [PDF]
, 1924 Theodore Lyman
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Photoluminescence Properties of Type‐II GaSb/GaAs Quantum Rings
Advanced Photonics Research, EarlyView.This study examines the magneto‐optical properties of GaSb/GaAs quantum rings (QRs) using photoluminescence spectroscopy. Recombination dynamics in single‐ and ten‐layer structures are analyzed through activation energy extraction, optical absorption profiling, and observation of a strong excitation‐induced blue shift. Carrier lifetime is also increase
Shumithira Gandan +10 more
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Advanced Photonics Research, EarlyView.Optical simulations of composite plasmonic split‐ring resonators show that a magnetic response can be obtained at wavelengths near the visible regime. The response is further increased by extending the geometry and enabling a Fano resonance through the coupling of magnetic dipoles.
Maximilian Grimmer, Monika Fleischer
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, 1962 A review is given of the present state of knowledge concerning the condensed phases of He{sup 3}. Attention is confined to the pure substance, and emphasis is placed upon the theoretical understanding of the material.
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Ni Single Atoms in Zeolite Beta for Selective Alkyne Hydrogenation
Advanced Sustainable Systems, EarlyView.Single‐atom Ni in zeolite Beta (Ni1/BEA) selectively remove trace acetylene from ethylene. Ni1/BEA achieve full conversion with ≈89% ethylene selectivity, stable for 24 h without coking, and 12 times higher TOF than prior zeolite‐supported single‐atom Ni catalysts. Na+ exchange suppress Brønsted acid‐catalyzed oligomerization. Under ethylene‐rich feeds,
Essa Alhashmi +2 more
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Advanced Science, EarlyView.Researchers have identified a citrus chimera with distinctive tissue origins and carotenoid profiles. It is discovered that fruit tissues develop from all three cell layers but in different proportions. A key transcription factor, MYB107, regulates β‐cryptoxanthin production by directly activating carotenoid biosynthesis genes, explaining why some ...
Chi Zhang +8 more
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