Results 111 to 120 of about 325,267 (403)
Extraction of Traces of Copper as Tetra-Butylammonium Tetrathiocyanato Copper (II) and Its Spectrophotometric Determination Using Eriochrome Black T [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1993 An extraction-spectrophotometric method for the determination of traces of copper (II) is described. The method is based on the quantitative extraction of copper as tetrabutylammonium tetrathiocyanato copper (II) into methyl isobutyl ketone, followed by ...
Mojtaba Shamsipur, Ali Reza Fakhari
doaj
Spectrally Engineered Coatings for Steering the Solar Photons
Advanced Materials, EarlyView.Spectrum‐splitting energy synergy: a spectrally engineered radiative cooling (RC) coating with photoluminescence is integrated with bifacial photovoltaic (biPV) panels to construct a hybrid biPV‐RC system. By controlling solar photon conversion pathways and guiding light transport, the system enables synergistic power generation and daytime radiative ...
Quan Gong +3 more
wiley +1 more source
Ultraviolet cometary spectrophotometry [PDF]
During the 13 shifts dedicated to observations of Comet Bradfield (including the two European shifts), five high dispersion exposures were obtained with the LWR camera, 27 low dispersion images with the LWR camera, and 36 low dispersion images with the ...
Ahearn, M. F.
core +1 more source
Advanced Materials Interfaces, EarlyView.The formation of stable clusters of gold nanoparticles with oligonucleotides at different solution conditions is explored. DNA base homogeneity and strand directionality influence the binding with gold nanoparticles leading to interesting clustering behavior that can be relevant for SERS applications.
Shaila Thakur +3 more
wiley +1 more source
Techniques and Review of Absolute Flux Calibration from the Ultraviolet to the Mid-Infrared [PDF]
, 2014 The measurement of precise absolute fluxes for stellar sources has been pursued with increased vigor since the discovery of the dark energy and the realization that its detailed understanding requires accurate spectral energy distributions (SEDs) of redshifted Ia supernovae in the rest frame.
arxiv +1 more source
Spectrophotometry of comets [PDF]
Photoelectric spectrophotometric- and image tube equipped spectrographic-studies on comets are used to formulate a new model for the cometary nucleus that is physically similar to the icy-conglomerate.
Odell, C. R.
core +1 more source
Advanced Materials Interfaces, Volume 12, Issue 6, March 16, 2025.This study explores how DNA affects protein corona formation on Graphene Oxide nanosheets in DNA‐supplemented human plasma. DNA introduction shifts the corona from protein‐dominated to a 2‐component biomolecular corona composed of proteins and DNA. Higher DNA concentration in the corona correlates with increased Toll‐like receptor 9 (TLR9) activation ...
Erica Quagliarini +7 more
wiley +1 more source
New bright optical spectrophotometric standards: A-type stars from the STIS Next Generation Spectral Library [PDF]
, 2015 Exoplanets have sparked interest in extremely high signal-to-noise ratio spectroscopic observations of very bright stars, in a regime where flux calibrators, in particular DA white dwarfs, are not available. We argue that A-type stars offer a useful alternative and reliable space-based spectrophotometry is now available for a number of bright ones in ...
arxiv +1 more source
Two-micron spectrophotometry of the galaxy NGC 253 [PDF]
, 1979 A very strong Brackett-gamma hydrogen emission line, and the 2.3 micron CO stellar absorption feature were measured in NGC 253. The presence and strength of the CO feature indicates that late type giant stars produce most of the 2.2 micron continuum ...
Becklin, E. E. +3 more
core +1 more source
Non-grey dimming events of KIC 8462852 from GTC spectrophotometry [PDF]
, 2018 We report ground-based spectrophotometry of KIC 8462852, during its first dimming events since the end of the Kepler mission. The dimmings show a clear colour-signature, and are deeper in visual blue wavelengths than in red ones.
Alonso, R. +3 more
core +3 more sources