Results 11 to 20 of about 1,424,346 (294)

On the reflectance spectroscopy of snow [PDF]

open access: yesThe Cryosphere, 2018
We propose a system of analytical equations to retrieve snow grain size and absorption coefficient of pollutants from snow reflectance or snow albedo measurements in the visible and near-infrared regions of the electromagnetic spectrum, where snow ...
A. Kokhanovsky   +10 more
doaj   +3 more sources

Quantitative model for imaging single fiber reflectance spectroscopy [PDF]

open access: yesScientific Reports
Single-fiber reflectance (SFR) spectroscopy enables quantitative retrieval of tissue optical properties from highly localized measurements through a single multimode fiber, but its diagnostic yield can be limited by small sampling volumes and probe ...
Robin van Zutphen   +2 more
doaj   +2 more sources

Predicting leaf traits in wine grapes with reflectance spectroscopy. [PDF]

open access: yesPLoS ONE
Estimating crop trait data is critical for predicting crop responses to environmental change, enabling more informed diagnoses of crop performance and the development of on-farm management strategies.
Rachel O Mariani   +4 more
doaj   +2 more sources

Reflectance Spectroscopy as a Novel Tool for Thickness Measurements of Paint Layers

open access: yesMolecules, 2023
A major challenge in heritage science is the non-invasive cross-sectional analysis of paintings. When low-energy probes are used, the presence of opaque media can significantly hinder the penetration of incident radiation, as well as the collection of ...
Alice Dal Fovo   +4 more
doaj   +3 more sources

Reflectance spectroscopy: a non-invasive strategy to explore skin reactions to topical products [PDF]

open access: yesFrontiers in Chemistry
Reflectance spectroscopy has emerged as a powerful analytical technique in the field of dermatology, offering a non-invasive strategy to assess several cutaneous properties and skin response to topical products.
Antonia Mancuso   +6 more
doaj   +2 more sources

Investigation of Biosubjects with Diffuse Reflectance Spectroscopy [PDF]

open access: yesACS Omega
Mei-Yu Hsu   +7 more
doaj   +2 more sources

Optical sensor for fast and accurate lung cancer detection with tissue autofluorescence and diffuse reflectance spectroscopy [PDF]

open access: yesThoracic Cancer
Background Cancer is a severe threat to human health, and surgery is a major method of cancer treatment. This study aimed to develop an optical sensor for fast cancer tissue.
Xianbei Yang   +7 more
doaj   +2 more sources

Rapid measurement of polycyclic aromatic hydrocarbon contamination in soils by visible and near-infrared spectroscopy [PDF]

open access: yes, 2013
Polycyclic aromatic hydrocarbons (PAHs) are widely distributed organic pollutants. At petroleum contaminated sites, PAHs are often the key risk drivers because of their carcinogenicity. Assessing the risk of PAH at contaminated sites by conventional soil
Okparanma, Reuben N.
core   +7 more sources

Contrasting mineral dust abundances from X-ray diffraction and reflectance spectroscopy [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
Mineral dust particles dominate aerosol mass in the atmosphere and directly modify Earth's radiative balance through absorption and scattering. This radiative forcing varies strongly with mineral composition, yet there is still limited knowledge on the ...
M. R. Sadrian   +2 more
doaj   +1 more source

In vivo diffuse reflectance spectroscopic analysis of fatty liver with inflammation in mice

open access: yesSurgery Open Science, 2021
Background: Nonalcoholic steatohepatitis is a progressive liver disease that can lead to cirrhosis, hepatocellular carcinoma, and hepatic failure. Thus, the diagnosis of nonalcoholic steatohepatitis, especially discrimination from nonalcoholic fatty ...
Yasuhiro Takihata, MD   +6 more
doaj   +1 more source

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