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Showing 1 to 16 of 16 for “"Infrared study"”.
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A Spitzer Mid-Infrared Study of Active Galactic Nuclei with Outflows
We present results of a study of the mid-infrared emission of broad absorption line (BAL) quasars to determine how they are related to the general population of quasars. We use the CLUMPY program code to create models of the tori that surround Active Galactic Nuclei. We compare these models to …
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A detailed infrared study of the star forming region NGC2071 IRS
This thesis presents measurements made at infrared (IR) wavelengths of the bipolar outflow in NGC2071. The observing methods at these wavelengths, the results of these data, and the nature of this outflow are discussed. The first JHK and NBL high spatial resolution images of the NGC2071IR region …
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Infrared Study of the Nonequilibrium Glassy State of Polymers (Frequency Shifts)
… has been examined using Fourier-Transform Infrared (FTIR) spectroscopy. The nonequilibrium nature of polymer glasses induces a physical aging process which results in time dependent changes in physical, mechanical and thermodynamic properties. Valence coordinate deformation (VCD) is …
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Infrared Study of Oxidized and Reduced Nontronite and Ca-K Competition in the Interlayer
… (SWa-1) was studied. The results of this study can be applied to estimate fertilizer K availability in the production field. Cation exchange method was used in this study. In the unaltered clay mineral, Ca displayed a strong preference over K. This preference, however, was reversed when …
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An Infrared Study of the Metal Ion Complexes of Model Systems Related to Biological Macromolecules
Made available in DSpace on 2014-12-09T17:35:23Z (GMT). No. of bitstreams: 1 6604217.pdf: 1977366 bytes, checksum: b48f84b211551793b9d6431a2d41a6a3 (MD5) Previous issue date: 1965
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Superlattice formation in group IV-B transition metal dichalcogenides
… is observed above T. An optically active far-infrared lattice mode is observed which c breaks up into several additional modes below the phase transition. In the infrared study, there is a dramatic shift in the Drude edge as well as new absorption peaks at low temperature. These observed …
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The crystal and molecular structures of some transition metal-barbiturate complexes
… this aspect is discussed in a later section. An infrared study of these compounds is also described. The individual components of the complexes, viz. the transition metals and the barbiturate ligands are in themselves of great biological and physiological significance. Although the human body is …
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Determination of the far-infrared properties of galaxies in the Coma cluster
… presents results from the deepest ever far-infrared study of the Coma cluster (Abell 1656), with the Herschel PACS and SPIRE instruments being used to observe the cluster at a wavelength range of 70-500 _m. These observations resulted in a catalogue consisting of 70 galaxies which were …
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Seyfert and starburst activity in galaxies: Modeling and analysis
We carried out an extensive infrared study of galaxies with Seyfert and starburst activity, to constrain the impact of these phenomena on the host galaxy evolution in a local galaxy sample. We developed new tools for stellar population analysis in the infrared, using stellar absorption features. …
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Multiwavelength behaviour of Cygnus X-3 and related objects
I present a detailed study of the behaviour of the exotic X-ray binary Cygnus X-3 at radio, (sub)mm, infrared, red-optical and X-ray wavelengths. Further unusual properties of the system are unearthed and previously expounded models are refined by new observations. In order to address the broader …
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Characterization and interphase mechanical properties of epoxy/PVP blends
… Scanning Calorimetry (nSC); 5) Fourier Transform Infrared (FTIR) Spectrometry: and ()) Water Absorption. Young's modulus, yield stress, yield strain. ultimate tensile stress. ultimate tensile strain, tensile toughness, fracture toughness, and strain energy release rate were obtained from tensile …
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Multiwavelength studies of classical novae
… are ideal astronomical events/objects to study a variety of interesting topics, such as mass-transfer mechanisms, binary evolution, and thermonuclear and radiative emission processes. Novae share some general observational characteristics during their eruption phases, yet each nova is new …