Results 21 to 30 of about 27,474 (263)

Effect of the Fuels Glycine, Urea and Citric Acid on Synthesis of the Ceramic Pigment ZnCr2O4 by Solution Combustion [PDF]

open access: yesMaterials Research, 2015
In this study, ceramic nanopigment ZnCr2O4was prepared by solution combustion using glycine, urea and citric acid as fuels. The objective is to study the influence of fuel on the morphology and the diffuse reflectance spectrum.
Edgar Andrés Chavarriaga Miranda   +2 more
doaj   +1 more source

Towards Non-Contact Glucose Sensing in Aqueous Turbid Medium at ∼1.1 Meters Distance

open access: yesIEEE Photonics Journal, 2020
This work demonstrates a non-contact diffuse reflectance approach with a working distance of ∼1.1 meters for the potential of glucose sensing.
Daqing Piao   +3 more
doaj   +1 more source

Analysing the suitability of radiometrically calibrated full-waveform lidar data for delineating Alpine rock glaciers [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
With full-waveform (FWF) lidar systems becoming increasingly available from different commercial manufacturers, the possibility for extracting physical parameters of the scanned surfaces in an area-wide sense, as addendum to their geometric ...
A. Roncat   +7 more
doaj   +1 more source

Polarized Light Field Imaging for Single-Shot Reflectance Separation

open access: yesSensors, 2018
We present a novel computational photography technique for single-shot separation of diffuse/specular reflectance, as well as novel angular domain separation of layered reflectance.
Jaewon Kim, Abhijeet Ghosh
doaj   +1 more source

Enhanced Diffuse Reflectance and Microstructure Properties of Hybrid Titanium Dioxide Nanocomposite Coating

open access: yesNanoscale Research Letters, 2018
In this research, we studied enhanced diffuse reflectance that can be achieved by excitations of multiple-scattering in a hybrid micro-structured titanium dioxide coating.
Hai Lu   +10 more
doaj   +1 more source

MANGANESE(II) DETERMINATION BY DIFFUSE REFLECTANCE SPECTROSCOPY

open access: yesТонкие химические технологии, 2017
Results of testing a prototype light-emitting diod miniphotometer for rapid and sensitive elements determination both in laboratory and in field conditions are presented. The new photometer consists of two devices providing measurements of absorbance and
Ya. I. Simakina   +3 more
doaj   +1 more source

Hyperspectral Reflectance Characteristics of Rice Canopies under Changes in Diffuse Radiation Fraction

open access: yesRemote Sensing, 2022
To analyze the hyperspectral reflectance characteristics of rice canopies under changes in diffuse radiation fraction, experiments using different cover materials were performed in Nanjing, China, during 2016 and 2017.
Tao Zhang   +5 more
doaj   +1 more source

The interpretation of diffuse reflectance spectra

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1976
Numerous treatments of the diffuse reflecting properties of scattering media have been described. Many theories give an adequate account of the reflectance for a specific set of conditions for which the model was constructed and the solution tested experimentally. Only those models which are considered to be fairly general are considered here.
openaire   +2 more sources

Optical Nerve Detection by Diffuse Reflectance Spectroscopy for Feedback Controlled Oral and Maxillofacial Laser Surgery

open access: yesJournal of Translational Medicine, 2011
Background Laser surgery lacks haptic feedback, which is accompanied by the risk of iatrogenic nerve damage. It was the aim of this study to investigate diffuse reflectance spectroscopy for tissue differentiation as the base of a feedback control system ...
Douplik Alexandre   +6 more
doaj   +1 more source

Diffuse Reflection Radius in a Simple Polygon [PDF]

open access: yesAlgorithmica, 2014
It is shown that every simple polygon in general position with $n$ walls can be illuminated from a single point light source $s$ after at most $\lfloor (n-2)/4\rfloor$ diffuse reflections, and this bound is the best possible. A point $s$ with this property can be computed in $O(n\log n)$ time.
Fox-Epstein, Eli   +2 more
openaire   +4 more sources

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