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Showing 1 to 20 of 75 for “"Absorption Bands"”.

  1. Changes in the Absorption Bands of Ethyl-Chlorophyllide During Crystallization

    Kromhout, Robert AndrewUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T17:11:41Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0004454.PDF: 3215445 bytes, checksum: 08ff2b305c11c955fca37d27a8d58b23 (MD5) Previous issue date: 1952

    uiuc Repository record

  2. Near Infrared Absorption Bands of the Hydroxyl Ion in Alkali-Halide Crystals

    Wedding, Brent MerleUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T21:41:43Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6801880.PDF: 2794999 bytes, checksum: efd2c87f4a26755cda473293c629510a (MD5) Previous issue date: 1967

    uiuc Repository record

  3. Near infrared absorption bands of the hydroxyl ion in alkali halide crystals

    Wedding, Brent Merle2011

    The near infrared absorption bands due to OH- in NaC1, NaBr, KCI, KBr, KI, and RbC1 have been measured at temperatures ranging from 1.4~ to 380 oK. Energy levels of the hydroxyl dipole in the crystal lattice were determined from the spectra. The crystals were grown by the Czochra1ski m~thod in a …

    uiuc Repository record

  4. Influence of applied uniaxial stress upon the ultraviolet absorption bands in KBr and KI

    LeCorgne, Denis York2011

    … H(ii) and H(iii), possessing the same optical absorption band as the H center but differing both from the H' center and from each other in their reorientation kinetics. A study of the wavelength dependence of the H, H(ii), and VI (Na+) centers s~owed the 'existence of three similar-polarized …

    uiuc Repository record

  5. Influence of Applied Uniaxial Stress Upon the Ultraviolet Absorption Bands in Potassium-Bromide and Potassium-Iodide

    LeCorgne, Denis YorkUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T22:38:41Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7114842.PDF: 3482592 bytes, checksum: 6f3d87b99eb4136339d0000f602989b6 (MD5) Previous issue date: 1970

    uiuc Repository record

  6. A study of the infrared spectrum of sulphur from 2 to 55 microns and a temperature analysis of the observed absorption bands

    Douglas, Bruce EdwardVirginia Polytechnic Institute1966

    … that the infrared fundamentals are the observed bands located at 41.6 μ and 52.3 μ, which is in good agreement with the assignment of Scott, Mcullough and Kruse. Less conclusive results were found for the identification of third infrared fundamental. Intermolecular coupling in the crystal was …

    vt Repository record

  7. Intrinsic Spectroscopic Tumor Markers Revealed by Double-Differential Analysis of Near-Infrared Absorption Spectra

    Kukreti, ShwaytaUniversity of Illinois at Urbana-Champaign2015

    … resolution. Application of this method to absorption spectra from tumor-containing tissue reveals specific tumor components (STC). The STC are characterized by specific NIR absorption bands. These absorption bands are tumor specific in at least two important ways: (1) spatial …

    uiuc Repository record

  8. Revealing Refractory Materials on Trans-Neptunian Objects and Centaurs via Reflectance Spectroscopy

    Seccull, ThomasQueen's University Belfast2020

    … via the presence of their characteristic absorption bands. Most of the objects observed exhibit reflectance spectra typical of TNOs, without characteristic absorption bands attributable to silicates or refractory hydrocarbons. The reflectance spectra of two objects, however, were confirmed …

    qu-belfast Repository record

  9. Surface characteristics of near-earth objects

    Hsia, Nancy PMassachusetts Institute of Technology2003

    … showing a higher red slope and less prominent absorption bands. This effect has been seen especially in the spectra of asteroids located in the main belt. Scientists now believe that space weathering processes, such as solar wind ion implantation and bombardment by micrometeorites, can affect …

    mit Repository record

  10. Modified chalcogenide glasses for optical device applications

    Hughes, MA2007

    … formation.Vanadium doped GLS displays three absorption bands at 580, 730 and 1155 nmidentified by photoluminescence excitation measurements. Broad photoluminescence,with a full width half maximum of ~500 nm, is observed peaking at 1500 nm whenexciting at 514, 808 and 1064 nm. The fluorescence …

    salford Repository record

  11. A parametric study of the validity of the weak-line and strong-line limits of infrared band absorption

    Villeneuve, Pierre V.Virginia Tech1992

    … the errors in the weakline and strong-line band absorption limits for a wide range of temperatures, pressures, path lengths, and species concentrations. The weak-line limit is valid under the condition 2u/β « 1. The strong-line limit is valid under the opposite conditions of the weak-line limit, …

    vt Repository record

  12. ΣΥΝΘΕΣΗ ΔΙΘΕΙΟΛΕΝΙΚΩΝ ΣΥΜΠΛΟΚΩΝ ΤΟΥ ΒΟΛΦΡΑΜΙΟΥ ΚΑΙ ΜΟΛΥΒΔΑΙΝΙΟΥ ΚΑΙ ΜΕΛΕΤΗ ΤΗΣ ΦΩΤΟΚΑΤΑΛΥΤΙΚΗΣ ΚΑΙ ΚΑΤΑΛΥΤΙΚΗΣ ΔΡΑΣΗΣ ΤΟΥ ΣΥΜΠΛΟΚΟΥ ΤΡΙΣ-11-(4-ΜΕΘΟΞΥΦΑΙΝΥΛΟ)-2-ΦΑΙΝΥΛΟ-1,2-ΑΙΘΥΛΕΝΟΔΙΘΕΙΟΛΕΝΙΚΟΥ - S,S '1 ΒΟΛΦΡΑΜΙΟΥ

    Μητσοπούλου, Χριστίνα-ΆνναNational and Kapodistrian University of Athens1990

    … THEIR ELECTRONIC SPECTRA SHOWED VERY INTENSIVE ABSORPTION BANDS IN THE VISIBLE REGION. THE PHOTOCATALYTIC AND CATALYTIC BEHAVIOUR OF THE COMPLEXE TRIS-(-1-M-METHOXYPHENYLO-)2-PHENYLO-1.2-ETHENODITHIOL TUNGSTEN WERE STUDIED. THIS COMPLEX IS THE FIRST PHOTOSENSITIZER, SO FAR THAT ACTS ALSO AS A …

    greece Repository record

  13. pH effects and rebinding pathways in CO adducts of heme proteins

    Braunstein, David PhillipUniversity of Illinois at Urbana-Champaign2011

    CO-adducts of heme proteins have IR absorption bands over the range 2200-1900 cm$\sp{-1}$. Flash photolysis can break the Fe-C bond, freeing the ligand. Below the glass-transition temperature of the protein-solvent system, $T\sb{g} \approx$ 185K, heme proteins are frozen into static conformations, …

    uiuc Repository record

  14. Detecting surface inhomogeneity of asteroids

    Mnisi, MandlenkosiDepartment of Astronomy2025

    … time-resolved spectroscopy revealed methane ice absorption bands, with band depths varying between 3.33% and 4.80%, consistent with previously reported values. Photometric analysis supported these results, showing an r − i colour variation linked to surface inhomogeneity. For asteroid 2005 EK70, …

    cape-town Repository record

  15. Direct measurement and analysis of cyclohexadienyl oxidation

    Taylor, James WagnerMassachusetts Institute of Technology2005

    … is created using laser-flash photolysis. The UV absorption bands of the radical are probed and it's relative concentration over time measured in non-polar solvents in both the presence and absence of oxygen. Several analytical and numerical models of the chemistry were constructed to explain a …

    mit Repository record

  16. Rare-earth-doped gallium lanthanum sulphide glasses for mid-infrared fibre lasers

    Schweizer, T.Universität Hamburg2000

    … and the tendency to crystallisation. <br/><br/>Absorption, fluorescence, and lifetime measurements were performed for eleven RE ions for wavelengths ranging from the visible to the mid-infrared with a focus on mid-infrared transitions. The results of the measurements were used to study the …

    soton Repository record

  17. Detection of rare earth elements and rare earth oxides with hyperspectral spectroscopy

    Bösche, Nina KristineUniversität Potsdam

    … by the full width of half maxima of the target absorption band; 3) mathematical modeling of the target absorption band and highlighting of rare earth elements. REEMAP was further adapted to different hyperspectral sensors (EO-1 Hyperion and EnMAP) and a new test site (Lofdal, Namibia). …

    potsdam-diss Repository record

  18. The spectroscopy and the photophysics of 1,2-benzazulene, a derivative of azulene.

    Awuku, StephenUniversity of Saskatchewan2022

    … of 1,2-benzazulene and azulene. Steady-state absorption measurement reveals that the S1-S0 absorption bands for azulene and 1,2-benzazulene look similar in shape and intensity but very weak compared to their respective S2-S0 absorption spectrum. However, the first absorption bands for …

    sask Repository record

  19. Spectral Reflectance as an Indicator of Water Quality in Streams Impacted by Mine Drainage

    Williams, David JamesThe Ohio State University1999

    … associated with the sediments shifted primary absorption bands to lower wavelengths. Spectral analysis results were used to classify Digital MultiSpectral Video (DMSV) imagery for several sites in theregion. The high spatial resolution of the DMSV sensor allowed for precise mapping of the mine …

    ohiolink Repository record

  20. Novel near-infrared absorbing dyes

    Corns, Stephen NigelUniversity of Leeds1990

    … absorbing squarylium dyes with narrow, intense absorption bands at about 800nm were obtained by reacting squaric acid with 2,2-disubstituted dihydroperimidines. The first dyes of this type possessed poor organic solvent solubilities but, through modification of the 2,2-substituents of the …

    whiterose Repository record

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