Grilled Cheese

ExploreLog inSign up
Terms of UsePrivacy PolicyCommunity StandardsHelpGet the app

Grilled Cheese is a product of Village Compute

Version devBuilt at: 2026-10-11 19:07:23 EDT

Explore

PostsPeople
LatestRanked
@sasspectroscopy.bsky.socialSep 9, 2026, 1:11 PM

New from Applied Spectroscopy!
Real-Time Quantification of #Hydrogen and #Deuterium Using Laser-Induced Breakdown Spectroscopy (#LIBS) in the Off-Gas of an Engineering-Scale Pumped Molten Salt Loop
Read more: https://doi.org/10.1177/00037028261454365
#SAS #Spectroscopy #molten #salt

Abstract: Laser-induced breakdown spectroscopy (LIBS) is being considered for elemental analysis of radionuclides transported into the off-gas system of molten salt reactors. A mobile LIBS system was calibrated for gas-phase measurements of hydrogen (i.e., protium, denoted here as H) and deuterium (D) in argon (Ar). The system was then used to quantify the concentrations of H and D in the off-gas of an engineering-scale molten salt loop (∼200 kg salt) following the addition of H2 or D2 as a 4% blend in Ar. The limits of detection for H and D were determined to be 0.0013 and 0.0011 mol% (13 and 11 parts per million), respectively. This research was carried out at the U.S. Department of Energy’s Oak Ridge National Laboratory in the Facility to Alleviate Salt Technology Risks (FASTR) pumped salt loop. Previous molten salt LIBS research has predominantly been performed at the bench scale, thus this study represents a major stride toward deploying LIBS technology for monitoring the performance of molten salt reactors. During the FASTR testing, the LIBS system operated continuously for several days. This online monitoring campaign demonstrates advancement in the application of LIBS for online monitoring of off-gas in molten salt systems.
@informaq.bsky.socialSep 9, 2026, 5:49 AM

SWIFT combines machine learning with physics-informed analysis to automate excited-state spectroscopy in semiconductor quantum dots, reducing measurement errors by 52% and enabling real-time tracking of QD and lead states.

#QuantumDots #SpinQubits #Spectroscopy

@sasspectroscopy.bsky.socialSep 8, 2026, 1:10 PM

New from Applied Spectroscopy!
Raman Spectroscopic Characterization of Carotenoid and Phenolic Co-Occurrence in Euphorbia pulcherrima Bracts and Inflorescences
Read more: https://doi.org/10.1177/00037028261453405
#SAS #Spectroscopy #Raman #Poinsettia #Euphorbia #pulcherrima

Abstract: The present study investigated the carotenoid content in colored bracts, nectar gland, flowers, and pollen of Euphorbia pulcherrima (poinsettia) using Raman spectroscopy. Raman spectra obtained from in situ and crude extracts of the structural components were attributed to carotenoids, phenolic acids, flavonoids, and anthocyanins. Significant changes in the spectral profile were observed according to the bract´s color variation. In the green leaves, bands assigned to carotenoids presented a higher intensity when compared to the main bands ascribed to phenolic acids/polyphenols. Intensity ratios involving ν(C=C) mode at 1527 cm–1, from carotenoids and ν(C=C)ar at 1600 cm–1, from polyphenols decreases in the following order: green leaves (Icar/Ipol = 1.89), yellow (Icar/Ipol = 0.72), red (Icar/Ipol = 0.4), and pink bracts (Icar/Ipol = 0.3). No carotenoid band was detected in white bracts. Raman mapping performed with bracts in transition of the coloration from green to red revealed that both carotenoids and phenolic compounds occur throughout the adaxial surface, but with different color gradients according to the development of the bract. The analysis of the inflorescences showed that carotenoids were the main pigments responsible for the coloration of the yellow nectar gland and pollen grains, while bracts and flowers (pedicel and style) had a predominance of polyphenols. We also used Raman spectroscopy to characterize the efficiency of crude extracts of green leaves and red bract as a reducing agent in the synthesis of silver nanoparticles (AgNPs). The red bract acetone crude extract yielded the most intense localized surface plasmon resonance (LSPR) signals. This work demonstrates the dual utility of E. pulcherrima bracts: as a source of diverse phytochemicals and as a sustainable route to biologically active nanostructured materials.
@garmonkz.bsky.socialSep 7, 2026, 3:29 AM

A single light pulse launched a complete Pd-complex switching cycle spanning 15+ orders of time—from femtoseconds to hours, including transient Pd–O cleavage and thermal recovery. It is a model complex, not yet a device. #Photochemistry #Spectroscopy https://easy-tm.com/news/odin-svetovoy-impuls-zap

@sophiejaggers.bsky.socialSep 6, 2026, 5:06 PM

In Przybylski's Star, REE — rare earth elements — are about +4 dex more abundant than in the Sun, which means roughly 10,000 times more! #Astrophysics #Stars #Spectroscopy

@dan-pelliccia.bsky.socialSep 3, 2026, 10:45 AM

If you want hear me ramble on pre-processing techniques for #spectroscopy check out my *free* webinar

"Tikhonov regularization for spectra smoothing and baseline subtraction"

events.humanitix.com/nirpy-webina...

#MachineLearning #Chemometrics #Python

@danielpelliccia.aus.social.ap.brid.gySep 3, 2026, 10:00 AM

If you want hear me ramble on pre-processing techniques for #spectroscopy feel free to register to the FREE webinar

"Tikhonov regularization for spectra smoothing and baseline subtraction"

I have two sessions scheduled on Sept 21st and Sept 22nd. The first session is generally best for the […]

@optoelectronadv.bsky.socialSep 3, 2026, 8:41 AM

#OEA_highlight Ultrafast all-optical modulation of wide-bandwidth pulses enabled by silicon-metasurfaces doi.org/10.29026/oea... by Prof. #Ivan_Buchvarov @universitysofia #Dragomir_Neshev @ourANU #ultrafast #tuning #metasurfaces #pump #probe #spectroscopy #nanophotonics

@gavo.fediscience.org.ap.brid.gySep 3, 2026, 6:49 AM

New in the #VirtualObservatory: “Green Peas from SDSS DR18” by Samonski H. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/282/14
#Spectroscopy #Galaxies #LineIntensities #VisibleAstronomy

@gavo.fediscience.org.ap.brid.gySep 3, 2026, 6:45 AM

New in the #VirtualObservatory: “Iron Spread in globular clusters” by Schiappacasse-Ulloa J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/712/A219
#GlobularStarClusters #PopulationIiStars #Spectroscopy #Metallicity

@apexjjap.bsky.socialSep 3, 2026, 3:02 AM

[2024 OPEN ACCESS]
Intracellular vacuoles induced by hypo-osmotic stress visualized by coherent anti-Stokes Raman scattering (CARS) spectroscopic imaging
2024 Appl. Phys. Express 17 092001

iopscience.iop.org/article/10.3...

#APEX
#Physics
#Openaccess
#CARS
#osmotic
#Raman
#spectroscopy