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  • FTIR
  • El-Hendawy A (2006) Variation in the FTIR spectra of a biomass under impregnation, carbonization and oxidation conditions. (springer.com)
  • multivariate
  • Of the recently developed univariate and multivariate near-IR FT-Raman methods for estimating cellulose crystallinity, the former method was applied to a variety of lignocelluloses: softwoods, hardwoods, wood pulps, and agricultural residues/fibers. (usda.gov)
  • Both the empirical approach and multivariate statistical techniques, including principal components analysis (PCA), and linear discriminant analysis (LDA), together with the leave-one-sample-out cross-validation method, were employed to develop effective diagnostic algorithms for classification of Raman spectra between normal and dysplastic gastric tissues. (nih.gov)
  • spectral
  • There are specific spectral differences in Raman spectra between normal and dysplasia tissue, particularly in the spectral ranges of 1200-1500 cm(-1) and 1600-1800 cm(-1), which contained signals related to amide III and amide I of proteins, CH(3)CH(2) twisting of proteins/nucleic acids, and the C=C stretching mode of phospholipids, respectively. (nih.gov)
  • Each spectrum was normalised to the integrated area under the curve to correct for variations in absolute spectral intensity. (nih.gov)
  • All spectra were acquired in 5 s with 785-nm excitation and corrected for spectral response of the system. (nih.gov)
  • polarized reflection
  • The polarized reflection spectra of single crystals of PDA-CPDO [poly-1-(N-carbazolyl)penta-1, 3-diyn-5-ol], which are Ï€ conjugated between the side groups and the main chain, have been measured in the photon energy region from 1.38 to 32 eV for the first time with a polarized synchrotron. (ebscohost.com)
  • chemistry
  • The origins of SIFT created to study interstellar chemistry and SIFT-MS developed for ambient gas and exhaled breath analysis and the UK centres in which these techniques are being exploited. (rsc.org)
  • peak-heights
  • In this method (93-Raman), CrI was determined based on regression that was developed using the ratios of peak-heights of the 93 and 1096 cm ?1 Raman bands (I93/I1096). (usda.gov)
  • However, the relative Raman peak heights, shapes, and positions showed little intrasample variability for either normal or dysplasia tissue, indicating the relative homogeneity of tissue samples used in this study. (nih.gov)
  • Lignin
  • The methods, in principle, are representative of the whole cell wall lignin and not just the portion of lignin that gets cleaved to release monomers, for example, during certain S/G chemical analyses. (usda.gov)
  • probe
  • Second, an image guidance system was made for use with a sensor-integrated robotic system (a Raman probe attached to a surgical system). (wayne.edu)
  • frequency
  • Joint probabilistic analysis of risk for aquatic species and exceedence frequency for the agricultural use of chlorpyrifos in the Pampean region, Argentina. (bioportfolio.com)
  • band
  • Simulation of the Raman band profiles yields information on the influence of chain length distribution. (ebscohost.com)
  • A new method is proposed for estimation of cellulose crystallinity (CrI) based on 93 cm ?1 Raman band in spectra of cellulose I materials. (usda.gov)
  • Changes
  • The phase transitions were identified using the Raman and IR splitting modes and the appearance or disappearance of peaks, which clearly corresponded to the changes in the frequencies of the modes as the pressure changed. (bioportfolio.com)
  • data analysis
  • The system supports tool tracking, sensor activation, real-time sensor data analysis, and presentation of the results in a 3D computer visualization of the environment. (wayne.edu)
  • images
  • The system is easy to use and has user-friendly analysis software (WiRE 4™) that provides us with high definition chemical images from our very large Raman datasets. (renishaw.com)
  • software
  • First, a software system was created to process, analyze, and classify data from a specific kind of sensor (a Raman spectrometer). (wayne.edu)
  • applications
  • Nanoparticle surface enhanced Raman scattering (SERS) tags have attracted interest as labels for use in a variety of applications, including biomolecular assays. (nih.gov)
  • Support
  • Additionally, recorded spectra of protein and lipid fractions of HDL were used as a support for the assignment of particular vibrations in intact particles. (mef.hr)
  • technique
  • The inVia and SCA interface provide an in-SEM analytical technique that allows co-located chemical information and the flexibility of a fully functioning Raman microscope. (renishaw.com)