Results 11 to 20 of about 19,017 (243)
Dual-Slope Diffuse Reflectance Instrument for Calibration-Free Broadband Spectroscopy
Applied Sciences, 2021 This work presents the design and validation of an instrument for dual-slope broadband diffuse reflectance spectroscopy. This instrument affords calibration-free, continuous-wave measurements of broadband absorbance of optically diffusive media, which ...
Giles Blaney +8 more
doaj +1 more source
Morphological and optical properties of porous hydroxyapatite/cornstarch (HAp/Cs) composites
Journal of Materials Research and Technology, 2020 This paper presents the correlation between the morphological characteristics and the diffuse reflectance (optical properties) of the porous hydroxyapatite/cornstarch (HAp/Cs) composites with various starch proportions (30, 40, 50, 60, 70, 80 and 90 wt%).
C.Y. Beh +8 more
doaj +1 more source
Epoxidation of alkenes using immobilized vanadyl Schiff base complex on montmorillonite as an efficient recyclable heterogeneous catalyst with tert-butyl hydroperoxide [PDF]
شیمی کاربردی روز, 2016 Oxovanadium(IV) Schiff base complex of N,N′-bis(5-[(triphenylphosphoniumchloride)-methyl-salicylidinenaphthal-diamine)] was synthesized, characterized and immobilized on sodium montmorillonite as a heterogeneous catalyst.
Abolfazl Bezaatpour +1 more
doaj +1 more source
Photonics, 2023 This study explores the use of diffuse reflectance spectroscopy (DRS) and multiwavelength fluorescence spectroscopy for real-time kidney stone identification during laser lithotripsy.
Polina S. Tseregorodtseva +15 more
doaj +1 more source
Diffuse reflectance mid-infrared spectroscopy is viable without fine milling
Soil Security, 2023 While diffuse reflectance Fourier transform mid-infrared spectroscopy (mid-DRIFTS) has been established as a viable low-cost surrogate for traditional soil analyses, the assumed need for fine milling of soil samples prior to analysis is constraining the ...
Jonathan Sanderman +8 more
doaj +1 more source
Light distribution modulated diffuse reflectance spectroscopy
Biomedical Optics Express, 2016 Typically, a diffuse reflectance spectroscopy (DRS) system employing a continuous wave light source would need to acquire diffuse reflectances measured at multiple source-detector separations for determining the absorption and reduced scattering coefficients of turbid samples.
Pin-Yuan, Huang +4 more
openaire +2 more sources
Diffuse reflectance spectroscopy: toward real-time quantification of steatosis in liver [PDF]
Transplant International, 2015 Assessment of fatty liver grafts during orthotopic liver transplantation is a challenge due to the lack of real-time analysis options during surgery. Diffuse reflectance spectroscopy (DRS) could be a new diagnostic tool to quickly assess steatosis.
Evers, Daniel J. +9 more
openaire +4 more sources
Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
Química Nova, 2011 SiO2-TiO2 materials prepared by sol-gel method were evaluated in the photocatalytic degradation of diuron. The materials were prepared with and without surfactant cetyltrimethylammonium chloride at different temperatures (25, 50 and 100 ºC).
Arthur Alaím Bernardes +5 more
doaj +1 more source
Diagnostics, 2023 We report on the comparative analysis of self-calibrating and single-slope diffuse reflectance spectroscopy in resistance to different measurement perturbations.
Valeriya Perekatova +8 more
doaj +1 more source
Analytical model for diffuse reflectance in single fiber reflectance spectroscopy
Optics Letters, 2020 Cancer progression leads to changing scattering properties of affected tissues. Single fiber reflectance (SFR) spectroscopy detects these changes at small spatial scales, making it a promising tool for early in situ detection. Despite its simplicity and versatility, SFR signal modeling is hugely complicated so that, presently, only approximate models ...
Faber, Dirk J. +3 more
openaire +3 more sources