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621 |
Ordering and disordering of hydroxylic solvents by ions and biopolymer surfaces employing emission spectroscopyMilton, John G. January 1974 (has links)
No description available.
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622 |
Dry calibration milks for calibrating infrared milk analyzersElkashef, Abdelaziz A. January 1990 (has links)
No description available.
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623 |
Spectroscopie de polarisation : isotopes du kryptonAudet, Daniel January 1985 (has links)
No description available.
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624 |
Comparative Lead Analyses By Flame Emission and Atomic Absorption SpectrophotometryScott, James A. January 1965 (has links)
No description available.
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625 |
Spectroscopic Investigations of Solid Uranyl Compounds and of Tissue-Engineered Myocardial ScaffoldsWang, Guangjun 30 April 2011 (has links)
For this dissertation, I investigated the laser-induced fluorescence (LIF) of solid uranyl compounds to develop an optical screening technique for the presence of uranyl compounds and I applied Raman spectroscopy to tissue-engineered myocardial scaffolds. Uranyl (UO2+2) compounds yield an easily detectable, characteristic emission. The fluorescence emission is in the 450–600 nm (22200 cm-1 to 16700 cm-1) spectral region. Typically five emission bands are observable, regardless of the excitation wavelength and the emission spectrum can be used as a fingerprint for uranyl compounds. In order to develop an optical screening technique for the presence of uranyl compounds, I investigated the dependence of uranyl LIF emission intensity on laser excitation wavelength and on laser power, and compared the advantages of continuous wave lasers with pulsed lasers. Based on our studies, we successfully designed a field-deployable Fluorescence Spectral Imaging (FSI) system for in situ detection of uranyl compounds. Tissue-engineered myocardial scaffolds are used to study cell recellularization into a three-dimensional (3-D) scaffold for true multilayered 3-D cellular growth and organization. Decellularization and recellularization processes necessarily are accompanied by specific molecular composition changes in the tissues and Raman spectroscopy is highly sensitive to these molecular composition changes. Raman spectroscopy is suitable for accurate molecular-level elucidation of reconstruction mechanisms. In this study, I recorded characteristic Raman spectra of fresh native porcine myocardium, decellularized porcine myocardium, fresh native rat myocardium, and decellularized porcine myocardium recellularized with rat stem cells. The results show that for fresh porcine myocardium and fresh rat myocardium have characteristic Raman peaks at 1004, 1448 and 1661 cm-1, which reflects cell compositions such as lipids. The Raman spectra of decellularized samples exhibit seven peaks at Raman shifts of 857, 938, 1063, 1253, 1300, 1448 and 1661 cm-1, which reflects that the extracellular matrix (ECM) after removal of cells. We also found that long time exposure to continuous laser irradiation produced the Raman spectra with increased background and blackened tissue in fresh heart tissue due to thermal denaturation. Our results demonstrate the feasibility of using Raman spectroscopy to analyze the recellulization process in tissue engineering myocardium.
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626 |
The electronic spectra of AlCl and CNO.Contolini, Robert John January 1981 (has links)
No description available.
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627 |
The electronic spectra of CF, AlBr, GaF, and SiF? /Griffith, William Bryan January 1983 (has links)
No description available.
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628 |
An analysis of the broad emmission line profiles of Seyfert 1 galaxies /Crenshaw, Daniel Michael January 1985 (has links)
No description available.
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629 |
The electronic spectra of AlBr, GaF, InCl, and CO⁺ /Williams, Elmer January 1985 (has links)
No description available.
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630 |
High resolution laser spectroscopy of cyclopentadienyl radical and its derivatives in a supersonic free jet expansion /Yu, Lian January 1991 (has links)
No description available.
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