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 89 for “"Potential Function"”.
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The Heat Shock Proteins of Maize: Their Induction, Cellular Location, and Potential Function
… presumed to be homeostatic, although the precise function of the proteins is unknown. This work investigates the regulation of hsp synthesis and potential physiological roles of the hsp by determining their subcellular location and their relationship to the establishment of thermotolerance.
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Autonomous Collision Avoidance for a Teleoperated UAV Based on a Super-Ellipsoidal Potential Function
… presents the design of a super-ellipsoidal potential function (SEPF) that can be used, in a static and dynamic environment, for autonomous collision avoidance of an unmanned aerial vehicle (UAV) in a 3-dimensional space. In the design of the SEPF, we have the full control over the shape and …
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Investigating a Potential Function of Belief in a Just World: Providing Purpose in Life as a Pathway to Subjective Well-Being
… In the current research, I examine two of these functions: to encourage investment in long-term goals (Callan, Shead, & Olson, 2009; Hafer, 2000; Hafer, Bègue, Choma, & Dempsey, 2005) and to reduce fear of death (Hirschberger, 2006; Pyszczynski, Greenberg, & Solomon, 1997). Moreover, I propose a …
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Efficient Automated Generation of Local Descriptors for Use in ab initio Electronic Structure Simulations
… structure calculations based on density functional theory (DFT) are well-known to have a high computational cost that scales algorithmically as O(N³), where N is the number of electrons. Reducing that cost is a key goal of the computational materials physics community and machine learning …
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An application of relaxation methods to transonic nozzle flow
… in a transformed computational plane. The potential function at interior points was obtained column by column through repeated application of the Thomas algorithm. Once the interior-point calculations were complete the values of the potential function on the boundaries were obtained by …
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A Solution of the Energy Minimization Problem for Codes of Codimension 1
… give the optimal code of codimension 1 for any potential function. We also investigate the polytope of quasicodes, where we give a symmetry and a list of vertices in some special cases.
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Machining-induced damage mechanisms in KDP crystals
… dynamics (MD) analyses. To this end, a reliable potential function will be established to conduct some large-scale MD simulations. The MD analyses include simple loading conditions (tension and compression) and complex loading conditions (nanoindentation and nanoscratching). The deformation …
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Development and implementation of a finite element program for static electromagnetic field problems
… bounded and unbounded domains respectively. The potential function is solved for, using a special solution technique which enhances the speed of the program. The program outputs data in the form of potential or flux component distributions along lines of interest.
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Theoretical Investigation of the Structure and Vibrational Frequencies of Water and Methanol Complexes
… are original. The first new method fits a Morse potential function to the energy computed along each normal mode. A second new method is based on fitting a quartic polynomial to energies computed along each normal mode. In cases where the quartic potential function is not very different from the …
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Dynamics of Phonons in Crystals as Studied by Picosecond Coherent Anti-Stokes Raman Spectroscopy
… difficult due to the complexity of the crystal potential function. In this thesis the picosecond coherent anti-Stokes Raman (CARS) technique is applied to the study of intermolecular and intramolecular phonons in organic molecular crystals and ionic crystals. In conjunction with recent …
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Effect of potential shape and excitation spectrum on power harvested from ambient vibration
… bandwidth, but ambient vibrations occur over a potentially broad range of frequencies. Nonlinear systems-in particular, bistable systems have a wide bandwidth. The objective of this thesis is to understand the dependence of power harvested on the shape of the potential-in the transition from …
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An Insight into Alpha-Synulcien's Biological Function and Its Pathogenesis in Neurodegenerative Disease
… lead to new understandings of alpha -synuclein function and pathogenesis in neurodegeneration. In the current study we analyzed transgenic mice overexpressing human alpha -synuclein and human alpha -synuclein mutations (A53T&A30P) to; First establish these transgenic mice as a model for …
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Experimental investigation and constitutive modeling of marine clay
… having twelve parameters, consists of a failure function, plastic potential function (non-associated flow rule), yield function and hardening law. To describe the degree of cross-anisotropy at failure, a new four-parameter failure criterion is developed. The plastic potential function, having two …
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A Web Service for Protein Refinement and Refinement of Membrane Proteins
… tests the ability of common molecular mechanics potential functions (AMBER99/03) and a hybrid knowledge-based potential function (KB_0.1) to refine near-native structures of membrane proteins in vacuo. A web based utility for protein refinement has been developed and deployed based on the KB_0.1 …
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The role of spectrin in Drosophila photoreceptor development.
… analysis can lead to the identification of the functions of spectrin in photoreceptor development, and to the potential function of spectrin in vertebrate eye development and in causing certain retinal diseases.
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Functional In Vivo Screen Identifies Pygo2 As A Putative Gene to Promote Prostate Cancer
… copy number alterations, highlighting the potential function of genes with copy number gains and losses in driving prostate cancer progression. To identify putative genes promoting prostate cancer, an <em>in vivo</em> tumorigenesis screen was performed for 286 genes that are recurrently …
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Molecular Dynamics Simulations In The Study Of Biological Lipid Membranes
… using the energy gradient calculated from a potential function which describes the system of atoms. Subsequently, the trajectories generated from the classical mechanical calculations are used to gain molecular-level insight into varying problems of biological interest. More specifically, we …
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Intermolecular potential combining rules utilizing corresponding states correlations for pure substances having nonspherical molecules
… parameters of two different three-parameter potential functions. Parameters for the rectangular well potential function and a new function, called the r⁻⁶ potential, are calculated from the data by means of a nonlinear, least squares curve fitting technique. Correlations are given for the …
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Molecular and functional analysis of the tumour antigen T21
… and differences in the expression and functionality of these two molecules to facilitate further studies on the role of T21 in prostate cancer tumourigenesis. As with the majority of identified cancer/testis antigens, the role of T21 in cancer remains undetermined. Therefore, …
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A Novel Statistical Potential for Protein Beta-Sheets Prediction
… In this study, we proposed a novel statistical potential, named NP-Beta, to predict the protein Beta-sheet structure only based on the sequence information. We included three kinds of potential terms in NP-Beta, i.e. the self-packing term, the pair interacting term and the lattice term. The …
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