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 68 for “"line-shape"”.
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An investigation of the natural line shape of the giant dipole resonance.
An investigation of photoabsorption experiments in the spherical nucleus 141Pr, the quasispherical dynamically deformed 197Au, and the statically deformed 165Ho showed that the best function for the energy dependence of the reduced transition probability is given by the Breit-Wigner form rather …
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The transformation of line, shape and intention in Chinese painting since Xu Beihong and Lin Fengmian
… the three traditional elements in painting-- line, shape, and intention--as methods of observation. The dissertation proposes that Chinese painting has undergone two stages of critical transformation that are worthy of notice: the first occurring in the chaotic situation during Wei Jin North …
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Nmr Line Shape and Moment Analyses for a Spin-1/2 Nucleus in Polycrystalline, Rigid Lattice, Axially Symmetric Systems
Made available in DSpace on 2014-12-09T17:36:08Z (GMT). No. of bitstreams: 1 6901472.pdf: 2681617 bytes, checksum: 45b3ab26360545903d8efcf723d05cd2 (MD5) Previous issue date: 1968
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Reproducing the line-shape of a Doppler-broadened Gamma-line in 10Be following the beta-decay of 11Li using Geant4
… with earlier generation detectors. The simplest line-shape in the measured data was used to verify that the new method can backcalculate the same details of the decay scheme as previous studies. When using the same energy loss data as earlier works, the additions to G4 recovered the half-life of …
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High-Resolution Spectroscopic Studies of Atmospheric Gases (C2H2-N2, O2, and 15NH3)
… The first study is intended to find the suitable line-shape models that can reproduce C2H2-N2 spectra best as well as retrieve reliable parameters, which are very useful for spectroscopic studies. The second project of oxygen A-band spectra is dedicated to retrieving a new parameter, called the …
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Anomalous diffusion in anisotropic media
… diffusion NMR and complementary deuterium line shape analysis. Restricted diffusion was studied in two lyotropic lamellar systems, the first consisting of crosslinked flat lamellae in anisotropic hydrogels and the second consisting of spherically bent lamellae in multilamellar vesicles. In …
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Surface and interface effects in valence band photoemission of noble metals
… to a long standing question about the asymmetric line shape of inter-band transitions in the noble metals. The asymmetry of this direct transition peak is a result of the involvement of the surface in the photoemission process. This is known as the surface photoemission effect. The change in …
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Optimised spectral processing and lineshape analysis in 2-dimensional J-resolved NMR spectroscopy based metabolomics
… spectral deconvolution of 2D JRES spectra from line-shape fitting was investigated Here, the mathematical functions describing the JRES line-shape, under several different processing conditions, are derived and used to create a semi-automated metabolite identification and quantification …
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A shape is a sound : reflections on the body and language
… between the body and language, between movement, line, shape, and voice. By weaving together diverse projects from my graduate career that explore voice and language as physical, material processes with episodes from my work as an actor, it investigates translation -- between forms, bodies, …
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Dynamical correlations of S=1/2 quantum spin chains
… regime. I show that an approximation for the line shape of the dynamical structure factor in the limit of small momentum transfer can be obtained by going beyond the Luttinger model and treating irrelevant operators associated with band curvature effects. This approach is able to describe the …
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Electron paramagnetic resonance analysis of dimethyl amidogen in polycrystalline tetramethyl tetrazene.
… were assigned on the basis of a polycrystalline line shape analysis. The radical exhibits axial symmetry with the parallel components of the tensors greater than the perpendicular components. The limits of error associated with the components of the tensors were estimated from the general …
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Effect of applied fields on the optical properties of color centers
… occur in the moments of the optical absorption line shape when the external perturbation is appliedo The changes in the zeroth,\) firstj) second» and third moments may be computed quite simply., Although this does not give the detailed change in the line shape, it pro= videa a precise method for …
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Field Measurements of Water Continuum and Water Dimer Absorption by Active Long Path Differential Optical Absorption Spectroscopy (DOAS)
… absorption is explained by a deformation of the line shape of the water monomer absorption lines as a consequence of a molecular collision. One the other hand, water dimers possibly contribute to water continuum absorption. Field measurements addressing water continuum and water dimer absorption …
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Investigating Ligand Induced Conformational Changes in the Estrogen Receptor
… work, B and C parameter calculations from EPR line-shape theory express receptor differences quantitatively as a spectrum of conformational change. Relative squared difference (RSD) analysis allows us to compare ligand receptor complexes to one another. Furthermore, a rigorous statistical …
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Membrane I/O: Designing Bits and Atoms for Tangible Telepresence
… mechanisms to blanket-like mechanisms, from line-shape sensing to surface-shape sensing and actuation. They will be presented with their design spaces and possible applications. The ideal model and future work of M.I/O will be discussed in the end.
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Study of relaxation processes in simple glass formers by means of 2H NMR spectroscopy
… angular displacement, its effects on the line shape of the solid echo are subtle. The spectral changes due to molecular motion are quantified by the relative spectral intensity at zero 2H NMR frequency R(tp,T) (tp is the interpulse delay). Random walk simulations employing several simple …
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Beam spin asymmetry measurements in deeply virtual Compton scattering
… Reaction ep → epX is studied. A fit to the line shape of the missing mass squared distribution of (ep) is used to extract the number of single photon final states in each kinematical bin for both helicities of the beam and for the helicity sum. DVCS beam spin asymmetry is measured in several …
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Arrhythmia heart disease classification using deep learning
… beat (SVEB) and fusion beat, based only on the line shape (morphology) of the individual heartbeats. The overall performance of the system resulted in a precision of 95.378%, a recall of 81.3035%, accuracy of 97.62% and an F1 score 84.6875%.
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Diode Laser Spectroscopy for Measurements of Gas Parameters in Harsh Environments
… new method also yields absolute gas absorption line shape or absorbance function. Residual Amplitude Modulation (RAM) contributions present in the first and second harmonic signals of WMS are recovered by exploiting their even or odd symmetric nature. These isolated RAM signals are then used to …
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A Shift in Silence
… shift in my life. Using the formal components of line, shape, and value, I create a space representing an intimate moment in time. Physically, the medium can be any material, but I process all of this as an expression of line. Each piece shares the commonality of lines and lineage, while the …
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