نتایج جستجو برای: infrared reflectance spectroscopy nirs
تعداد نتایج: 256033 فیلتر نتایج به سال:
Current methods for characterization of lignocellulosic biomass feedstocks for biological conversion are dominated by compositional analysis and digestibility/ fermentation tests; however, both these groups of laboratory methods have their respective advantages and disadvantages. The purpose of this paper is to develop a wet-chemistry assay for determination of lignocellulosic biomass quality t...
Near Infrared Reflectance Spectroscopy (NIRS), coupled with fiber optic probes, has been shown to be a quick and reliable analytical tool for quality assurance and quality control in the pharmaceutical industry, both for verifications of raw materials and quantification of the active ingredients in final products. In this paper, a typical pharmaceutical product, hydrocortisone sodium succinate,...
Visible and near infrared reflectance spectroscopy was used to predict pH at 24h (pH24) post-mortem, sarcomere length (SL), cooking loss (CL), Warner-Bratzler Shear Force (WBSF) and colour parameters (L(∗), a(∗), b(∗)) in beef cattle samples. Samples from M. longissimus thoracis et lumborum from 30 bulls were aged at 4°C for 1, 3, 7 and 14 days and analysed for pH, SL, CL, WBSF and colour. NIRS...
Near-infrared spectroscopy (NIRS) was implemented to monitor the moisture content of broadleaf litters. Partial least-squares regression (PLSR) models, incorporating optimal wavelength selection techniques, have been proposed to better predict the litter moisture of forest floor. Three broadleaf litters were used to sample the reflection spectra corresponding the different degrees of litter moi...
The optoelectronic sensor OPT101 have merits in advanced optoelectronic response characteristics at wavelength range for medical near-infrared spectroscopy and small-size chip design with build-in trans-impedance amplifier. Our lab is devoted to developing a series of portable near-infrared spectroscopy (NIRS) devices embedded with OPT101 for applications in intensive care unit clinics, based o...
Near infrared reflectance spectroscopy (NIRS) was evaluated for its accuracy in analyzing the nutritive value of tropical grass hays made by Florida livestock producers. From 1982 to 1987, a unique set of producer hays was obtained representing four tropical grass species, and an unknown range of maturities, fertilization schemes, weather conditions, and hay making and storage procedures. Gener...
Sufficient nutrient application is one of the most important factors in producing quality citrus fruits. One of the main guides in planning citrus fertilizer programs is by directly monitoring the plant nutrient content. However, this requires analysis of a large number of leaf samples using expensive and time-consuming chemical techniques. Over the last 5 years, it has been demonstrated that i...
Ethanol-soluble carbohydrates (ESCs) of cool-season grasses include mono- and disaccharides sometimes short-chain fructans, which may exacerbate the risk pasture-associated laminitis. A calibration for prediction ESC concentrations by near-infrared reflectance spectroscopy (NIRS) was developed from 323 samples four grass species (orchardgrass, Kentucky bluegrass, tall fescue, perennial ryegrass...
Near-infrared spectroscopy (NIRS) and mid-infrared spectroscopy (MIRS) have been used for quantitative and/or qualitative analysis of a wide range of materials. The objective of this study was to investigate the potential of MIRS and NIRS for following the degradation of bio-based food utensils during composting. Polylactide (PLA)-based forks lost 34% of their initial mass and were reduced to s...
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