OBJECTIVE This study was conducted to determine molecular structures related to carbohydrates and lipid in alfalfa hay cut at early bud, late bud and early flower and in the afternoon and next morning using Fourier transform infrared spectroscopy (FT/IR) and to determine their relationship with alfalfa hay nutrient profile and availability in ruminants. METHODS Chemical composition analysis, ...

magnetite (fe3o4) nanoparticles have been successfully prepared by a novel one-step and surfactant-free approach utilizing ferrous ion, as a single iron source. in this manner, the reaction occurs between two aqueous solutions via the spontaneous transfer of ammonia gas from one to another in room temperature. no ferric source or oxidizing specie, oxidation controlling and capping agents are ne...

aim: to enhance the aqueous solubility of olanzapine by using the solid dispersion technique. solid dispersions of olanzapine were prepared by the dispersion method using using pgs and ssg as carriers. drug:carrier ratios such as 1:1, 1:2, 1:4, 1:6, 1:8 and 1:10 were tried for optimization. characterization was done by phase solubility, in vitro release, saturation solubility, permeation, wetta...

A no-moving-part planar array infrared spectrograph (PA-IR) equipped with a 256 x 256 mercury cadmium telluride (MCT) focal plane array has been designed and constructed. The performance of the instrument, whose frequency range extends from 2000-975 cm(-1), has been assessed in terms of resolution, bandwidth, and signal-to-noise ratio. The PA-IR spectrograph is able to record spectra with an 8....

Cell pastes and supernatant Escherichia coli samples, taken from an industrial bioprocess overproducing recombinant a2 IFN were analysed using pyrolysis mass spectrometry (PyMS) and diffuse reflectance-absorbance Fourier transform infrared spectroscopy (FT-IR). PyMS and FT-IR are physico-chemical methods which measure predominantly the bond strengths of molecules and the vibrations of bonds wit...

Applying computer vision technology to IR (Infra-Red) images for UAV (Unmanned Aerial Vehicle) applications is difficult due to its characteristics which differ from common image processing. By combining visual categorization with low level IR image processing, this paper presents a framework for automatic labeling of IR images in probabilistic manner. We extract the features which contain temp...

The Fourier transform gas phase (5000-400 cm), solid phase (4000-400 cm) infrared spectra as well as Raman spectra (3500-50 cm) of 1,3-dimethylbarbituric acid have been recorded. Quantum chemical calculations of energies, geometrical structure and vibrational wave numbers of 1,3-dimethylbarbituric acid have been made by density functional method with 6-31G(d,p) as basis set. The best level of t...

Different yew species contain poisonous taxane alkaloids which serve as resources for semi-synthesis of anticancer drugs. The highly variable amounts of taxanes demand new methods for fast characterization of the raw plant material and the isolation of the target structures during phyto extraction. For that purpose, applicability of different vibrational spectroscopy methods in goods receipt of...

Fourier Transform Infrared (FT-IR) spectroscopy is a robust method for macromolecular analysis and differentiation of microorganisms. However, most studies are performed in controlled conditions and it is unclear whether this tool is appropriate for the identification of eukaryotic microalgae species from variable environments. In order to address this, nine closely-related species of marine an...

Structure property relationships in two series of BaO-ZnO-La2O3-Al2O3-B2O3-SiO2 glasses have been investigated to assess their suitability for use as sealants solid oxide fuel cell (SOFC) applications. Density, mechanical properties, thermal and electrical properties a function composition. Raman Fourier transfer infra-red spectroscopies were undertaken obtain insights into the glass structure....