Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"Molecular emission"”.
-
An interferometric study of molecular emission around NGC 7538 at millimeter wavelengths
ETDs are only available to UIUC Users without author permission
-
Mechanoluminescence and Sonoluminescence From Acoustic Cavitation
… organics resulted in intense carbon-containing molecular emission lines in the SBSL spectrum. The spectral profile of the molecular emission lines was found to be dependent on concentration of the organic and the applied acoustic pressure. At low concentration, the molecular emission bands …
-
ΑΝΑΛΥΤΙΚΕΣ ΕΦΑΡΜΟΓΕΣ ΜΟΡΙΑΚΗΣ ΕΚΠΟΜΠΗΣ ΑΠΟ ΚΟΙΛΟΤΗΤΑ
THE THEORY AND APPLICATIONS OF MOLECULAR EMISSION CAVITY ANALYSIS ARE DISCUSSEDIN THIS THESIS. EMPHASIS IS GIVEN TO THE DETERMINATION OF SULPHUR COMPOUNDS WHICH GENERATE SULPHIDE OR HYDROGEN SULPHIDE OR SULPHUR DIOXIDE BY A CHEMICAL REACTION. THE GENERATION OF HYDROGEN SULPHIDE BY ELECTROLYSIS OF …
-
Spectroscopic Studies of Multi -Bubble and Single Bubble Sonoluminescence
… and moving bubbles and, for the first time, molecular emission was detected in SBSL spectra.
-
Microwave Spectroscopy of Weakly Bound Molecular Complexes
… resolution microwave spectra of weakly bound molecular complexes are discussed. These complexes, consisting of a polar linear molecule and a rare gas atom or other molecule as the bound partner, have binding energies ranging from 0.2 to 6.0 kcal/mole. Formation of the complexes is achieved by …
-
Combustion dynamics of individual reactive material particles
… particle diameters are interpreted and emission signatures are correlated to determine the burn times. The current setup has been expanded to include three-color optical pyrometry and tracing characteristic molecular emission. Results for Al and novel Al-based composite materials burning …
-
Small-scale structures in planetary nebulae
… were studied in order to investigate small scale molecular structures in planetary nebulae, the survival of which affects the structure and composition of the interstellar medium (ISM) from which the next generation of stars is born. Molecular hydrogen (H[subscript 2]) was used a tracer for …
-
A review of optical diagnostic techniques used to identify uranium spectral signatures
… Given that all elements have a unique atomic and molecular emission signature, explosive compositions can be determined by making comparisons to known spectral emission data. Atomic and molecular signatures can only be detected at early times during an explosive event when high-energy plasmas are …
-
Analysis of Molecular Variability Due to Accretion Bursts in the Protoplanetary Disk of Ex Lup as Observed with the James Webb Space Telescope
… I analyzed the spectra of organics and water emission and found that they returned to quiescent levels after their extreme changes during outburst. I also compared to a sample of ~60 disks observed using IRS, showing that the variation of molecular emission as a function of time in EX Lup may …
-
The Importance of Photoevaporation in the Evolution of Protoplanetary Discs
… appear in observations of atomic forbidden emission lines and so how both line profiles and spatially resolved emission may be used to constrain the wind's nature; c) by including photoevaporation in models of disc evolution on secular timescales that predict its interplay with other …
-
High-Resolution Imaging of Dense Gas Structure and Kinematics in Nearby Molecular Clouds with the CARMA Large Area Star Formation Survey
… thesis utilizes new observations of dense gas in molecular clouds to develop an empirical framework for how clouds form structures which evolve into young cores and stars. Previous observations show the general turbulent and hierarchical nature of clouds. However, current understanding of the star …
-
Chemical and physical effects of ultrasound: sonoluminescence and materials
… of chemical reactions (sonochemistry) and the emission of light (sonoluminescence). The implosive collapse of bubbles in liquids results in an enormous concentration of sound energy into compressional heating of the bubble contents. Therefore, extreme chemical and physical conditions are …
-
Molecular clouds and star formation in the Inner Galaxy
… Stars form from the gravitational collapse of molecular gas clouds; it is the process by which cold molecular gas is transformed into the stars and planets that make up the many billions of galaxies in the observable Universe. However, there are a number of open questions that have yet to be …
-
New Advances in Exoplanet Spectroscopy from Space and Ground
… we present the first detection of multiple molecular emission features and a thermal inversion in the atmosphere of the ultra-hot Jupiter MASCARA-1 b, identifying CO and H2O at high significance. These results highlight the scientific potential of CRIRES+ for characterising diverse …