Slurries are often used in chemical and pharmaceutical manufacturing processes but present challenging online measurement and monitoring problems. In this paper, a novel multivariate kinetic modeling application is described that provides calibration-free estimates of time-resolved profiles of the solid and dissolved fractions of a substance in a model slurry system. The kinetic model of this s...

Differences between light reflectance from leaves of cotton (Gossypiurn hirsutum) plants grown with a low- or no-nematode (Rotylenchulus reniformis) population (nonstressed), and from leaves grown with a high nematode population (stressed) were measured in field and greenhouse experiments. Reflectance was measured spectrophotometrically in the laboratory on single leaves and spectroradiometrica...

Optical wavelength satellite data have directional reflectance effects over non-Lambertian surfaces, described by the bidirectional reflectance distribution function (BRDF). The Sentinel-2 multi-spectral instrument (MSI) acquires data over a 20.6◦ field of view that have been shown to have non-negligible BRDF effects in the visible, near-infrared, and short wave infrared bands. MSI red-edge BRD...

Wet collections sealants are historical materials that essential for a sustainable preservation of specimens in fluid. Yet little is known about their composition, apart what can be found technical records. Few scientific studies dedicated to the identification these often correspond complex mixtures. This work aims at facilitating characterization beeswax-rosin mixtures used sealing wet collec...

Methods for estimation of grow index of tealeaves based on Bi-directional Reflectance Distribution Function: BRDF measurements with ground based network cameras is proposed. Due to a fact that Near Infrared: NIR camera data is proportional to total nitrogen while that shows negative correlation to fiber contents, it is possible to estimate nitrogen and fiber contents in tealeaves with ground ba...

PURPOSE Imaging studies from anesthetized feline, primate, and human retinas have revealed near-infrared fundus reflectance changes induced by visible light stimulation. In the present study, the spatial and temporal properties of similar changes were characterized in normal, awake humans. METHODS Five normal human subjects were studied. A modified fundus camera was used to image changes in r...

Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FT-IR) provides portable and rapid analysis of biomarkers drugs within fingernails. Fingernails offer a suitable alternative to traditional biological matrices provide advantages such as non-invasive collection requiring small sample sizes. This work utilized ATR-FT-IR for detecting cocaine were analyzed initially “as rec...