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.
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Showing 1 to 20 of 92 for “"Dipole moments"”.
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MEASUREMENT OF THE MAGNETIC AND ELECTRIC DIPOLE MOMENTS OF THE $\LAMBDA$ BARYON AT LHCB
… to probe such sources is to search for electric dipole moments (EDMs) of fundamental particles. This thesis explores that possibility through the study of the \Lz baryon: an EDM observation with the current sensitivities would constitute evidence of CP violation beyond the SM. Moreover, the …
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Dipole moments and Kerr effect of poly(n-vinylcarbazole) and its complexes with trinitrofluorenone
… a range of temperatures. The magnitudes of the dipole moments and Kerr constants were found to vary with changes in the tacticity of poly(N-vinylcarbazole). The results of these measurements support the view that the stereostructure of poly(N-vinylcarbazole) is sensitive to the mechanism of …
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PROOF-OF-PRINCIPLE TEST FOR AN EXPERIMENT FOR SHORT-LIVED PARTICLE DIPOLE MOMENTS AT LHC
The magnetic (MDM) and electric (EDM) dipole moments of fundamental particles serve as powerful probes of the Standard Model and of possible extensions that introduce new sources of CP violation. A permanent EDM would constitute clear evidence of physics beyond the Standard Model, while magnetic …
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Experimental and theoretical investigations of the dielectric and electro-optical properties of polycarbazoles and polysiloxanes
… molar masses in the range 160-7700 and dipole moments calculated. For cyclic dimethyl siloxanes containing more than 20 skeletal bonds the dipole moments were found to be the same, within experimental error, as those found for the nearest equivalent linear molecules. However, the dipole …
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Steady-State and Ultrafast Fluorescence Depolarisation in Rigid-Rod Conjugated Polymers
… between the absorption and emission transition dipole moments of a molecule. Polarised spectroscopy results from a polymer with a flexible backbone, poly (9,9-di(ethylhexyl)fluorene) were compared with those from two rigid backbone polymers: methyl-substituted ladder-type poly (para-phenylene) …
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Modelling of molecule-inside-dipole complexes: through- vs. around-molecule ion transfer
… and stabilities, charge distributions, dipole moments, and infrared intensity spectra, are characterized for these systems. We find significant differences in the relative stabilities of complexes, with polar systems having increased stability and ion-attachment energies compared to …
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Phase behavior of dipolar fluids and ion-dipole mixtures, and surface diffusion of adsorbed polymers
Dipole moments are ubiquitous in nature. Studying dipole moments is the first step toward understanding phase behavior of various colloids with strong dipole moments. Since the Dipolar Hard Sphere fluid (DHS) is the simplest model described by dipolar interactions, studying this model is …
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Spectra at speed: neural force fields for IR spectroscopy in ionic liquids
… accurate IR predictions require precise dipole moments, which are commonly estimated from arbitrary, method-dependent partial charges. In this work, we address these challenges for a prototypical IL. First, for an isolated ion pair, we develop a hybrid framework combining Deep Potential …
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Solvation Energy Calculations of Homologous Trimethylammoniocarboxylates
… at n = 3 and the cmc data peaks at n = 4. The dipole moments were also examined. The gas phase dipole moments were graphed and have a maximum at n = 3, similar to the solvation energy. The solution dipole moments have a linear graph, not comparable to the solvation energies. Therefore, the …
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Excited state charge redistribution and dynamics of flavins, flavorproteins, and their cofactors
… anionic flavins/flavoproteins. The difference dipole moment of the second, more intense, transition was found to be about twice as large as that of the lowest energy transition. With the aid of ab initio calculations, the directions of these dipole moments in the molecular frame were assigned. …
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Octupole degrees of freedom in Uranium-230
… was observedfrom the new levels. Intrinsic dipole moments, energies of the observed states, and transitions arecompared to systematics of neighboring nuclei. Related similarities in the intrinsic dipole moments,and energies are noticed in the systematics. These results still support octupole …
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An Improved dipole-moment model based on near-field scanning for characterizing near-field coupling and far-field radiation from an IC
… with the least square method to calculate the dipole moments from the near-field data. This dipole model has clear physical meaning: the electric and magnetic dipoles represent the voltage and the current in the circuit, respectively. One application of this dipole model is the prediction of …
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A Description of the Electrostatic Interactions of Fluorophores With Polar Solvents Based on A Gaussian Distribution of Interaction Energies (Danca, Prodan)
The dipole moments of a fluorophore in the ground and excited states arise from partial charges localized on specific parts of the molecule. These charges are considered to be monopoles which interact independently with solvent dipoles. The orientation of a solvent dipole with respect to each …
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Chirped-pulse millimeter-wave spectroscopy, dynamics, and manipulation of Rydberg-Rydberg Transitions
… transitions is that they have enormous electric dipole transition moments: ~5 kiloDebye at n* ~45, where n* is the eective principal quantum number. After polarization by a mm-wave pulse in the 70{84 GHz frequency region, the excited transitions re-radiate free induction decay (FID) at their …
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Yttrium, Gadolinium, and Lutetium Based Endohedral Metallofullerenes: From Synthesis to Application
… Chapter 4 presents a systemic examination of dipole moments in TNT EMFs. The first 13C NMR study of M3N@C2(22010)-C78 is achieved on Y3N@C2(22010)-C78. In addition, dipole moments of the M3N@C2n (n=39-44) family are probed by interpretation of chromatographic retention behavior, DFT …
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Laser-molecule Interactions And The Effects Of Permanent Dipoles
… a non-zero difference, d, between the permanent dipole moments of two molecular states involved in a transition, are investigated for a variety of electromagnetic field-molecule interactions. Both analytical and exact numerical techniques are used to solve the time-dependent Schrodinger equation …
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Determination of the proton affinities of gas phase peptides by mass spectrometry and computational chemistry
<p>Helices in proteins have substantial permanent dipole moments arising from the nearly perfect alignment of the individual dipole moments of each peptide bond. Interaction with this helix "macrodipole" is thought to perturb the pKa values of basic or acidic residues at the helix termini. The goal …
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Left-right symmetric model and its TeV-scale phenomenology
… neutrinoless double beta decay, electric dipole moments of charged leptons, and leptogenesis.
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One-dimensional hydrogen atom
… the field, and which may have enormous electric dipole moments. Such one-dimensional hydrogen atoms are ideal tools for studying a number of physical phenomena and applications.
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One-dimensional hydrogen atom
… the field, and which may have enormous electric dipole moments. Such one-dimensional hydrogen atoms are ideal tools for studying a number of physical phenomena and applications.
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