Results 21 to 30 of about 84,754 (197)

Influence of Light Conditions and Light Sources on Clinical Measurement of Natural Teeth Color using VITA Easyshade Advance 4.0® Spectrophotometer: Pilot Study

open access: yesActa Stomatologica Croatica, 2016
Objectives: The purpose of this study was to evaluate and compare lightness (L), chroma (C) and hue (h), green-red (a) and blue-yellow (b) character of the color of maxillary right central incisors in different light conditions and light sources ...
Ivona Posavec   +2 more
doaj   +1 more source

The structural and diagenetic evolution of injected sandstones: examples from the Kimmeridgian of NE Scotland [PDF]

open access: yes, 2003
: Injected sandstones occurring in the Kimmeridgian of NE Scotland along the bounding Great Glen and Helmsdale faults formed when basinal fluids moved upward along the fault zones, fluidizing Oxfordian sands encountered at shallow depth and injecting ...
Duranti, D.   +4 more
core   +2 more sources

Characterizing the luminescent properties of upconversion nanoparticles in single and densely packed state [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2019
Luminescent properties of Er3+- and Yb3+- co-doped CaF2 upconversion nanoparticles (UCNPs) were investigated in single particle and densely-packed states with a custom-built microscope.
Xiaohu Chen   +9 more
doaj   +1 more source

Some methods of luminescence efficiency measurements

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1976
Methods of absolute and relative radiant and quantum efficiency measurements are described for ultraviolet, visible, cathode-ray, and x-ray excitations. Data on some standard luminescent materials are given.
Bril, Alfred, de Jager-Veenis, A. Willy
openaire   +2 more sources

Luminescent molecular thermometers for the ratiometric sensing of intracellular temperature

open access: yesReviews in Analytical Chemistry, 2017
Recently, numerous luminescent molecular thermometers that exhibit temperature-dependent emission properties have been developed to measure the temperatures of tiny spaces.
Uchiyama Seiichi, Gota Chie
doaj   +1 more source

Facile and rapid synthesis of highly luminescent nanoparticles via Pulsed Laser Ablation in Liquid [PDF]

open access: yes, 2009
This paper demonstrates the usefulness of pulsed laser ablation in liquids as a fast screening synthesis method able to prepare even complex compositions at the nanoscale.
Amans, David   +3 more
core   +3 more sources

Europium(III) diphenylphosphinate as a potential low-dimensional nanostructured coordination polymer scintillator

open access: yesMaterials Letters: X, 2023
Rare earth diphenylphosphinates – [RE(dpp)3]n – are low-dimensional nanostructured luminescent materials with considerable thermal and chemical stability, obtained in powder form, consisting of highly insoluble nanowire/nanorod-shaped particles.
Luís Felipe Bricks Bim   +1 more
doaj   +1 more source

Luminescence measurements on surfaces [PDF]

open access: yesPure and Applied Chemistry, 1985
Abstract
openaire   +1 more source

Synthesis of colloidal aluminum hydroxide nanoparticles for transparent luminescent polymer nanocomposite films

open access: yesMaterials & Design, 2019
Luminescent inorganic phosphors are widely used as wavelength-converting materials in many emerging applications including displays, solar cells, and bioimaging. This study demonstrates the synthesis of highly luminescent colloidal AlOH nanoparticles and
MinHye Kim   +5 more
doaj   +1 more source

Flexible and Transparent Luminescent Cellulose-Transition Metal Cluster Composites

open access: yesNanomaterials, 2023
Red-NIR luminescent polymers are principally obtained from petroleum-based derivatives in which emitters, usually a critical raw material such as rare-earth or platinum group metal ions, are embedded.
Maria Amela-Cortes   +4 more
doaj   +1 more source

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