Results 141 to 150 of about 4,369,846 (398)

Development and Application of Full Spectrum Direct Reading Arc Emission Spectrometer E5000 and Its Application in Geochemical Sample Analysis

open access: yesYankuang ceshi, 2015
In geochemical sample analysis, some elements such as Ag, B, Sn are difficult to analyze. Traditional alternating current Arc Emission Spectrometry is used to analyze them, for example Spectrograph and Multi-channel Arc Emission Spectrometer.
YU Xiao-feng   +4 more
doaj   +1 more source

In‐Situ Growth of 2D MOFs as a Molecular Sieving Layer on SnS2 Nanoflakes for Realizing Ultraselective H2S Detection

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The ultraselective H2S detection of the ZIF‐L/SnS2 heterostructure is demonstrated. The introduction of 2‐dimensional (2D) breathable ZIF‐L results in a substantial increase in H2S selectivity attributable to the molecular sieving effect, which impedes the permeation of gases with large kinetic diameters and high polarity.
Soo Min Lee   +7 more
wiley   +1 more source

No evidence yet for hadronic TeV gamma-ray emission from SNR RX J1713.7-3946

open access: yes, 2002
Recent TeV-scale gamma-ray observations with the CANGAROO II telescope have led to the claim that the multi-band spectrum of RX J1713.7-3946 cannot be explained as the composite of a synchrotron and an inverse Compton component emitted by a population of
Aharonian   +16 more
core   +1 more source

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng   +14 more
wiley   +1 more source

Exciton–plasmon coupling and light field manipulation within perovskite quantum dot-decorated aluminum metasurfaces

open access: yesAPL Photonics
To advance the development of quantum modulator, it is essential to enhance the light–matter interactions through coupling between quantum dots (QDs) and metallic plasmonic nanostructures.
Yuan Tian   +11 more
doaj   +1 more source

Effects of x-ray free-electron laser pulse intensity on the Mn K β 1,3 x-ray emission spectrum in photosystem II-A case study for metalloprotein crystals and solutions. [PDF]

open access: yesStruct Dyn, 2021
Fransson T   +26 more
europepmc   +1 more source

The emission spectrum of hydrocarbon flames [PDF]

open access: yesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1940
The present investigation was commenced at the suggestion of the late Professor W. A. Bone, as a continuation of the systematic examination of flame spectra which had been carried out in his laboratories (Weston 1925 a , b ; Bone and Lamont 1934; Bell 1937).
openaire   +2 more sources

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri   +16 more
wiley   +1 more source

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