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 25 for “"3 Body"”.
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Multiple Gravity Assists for Low Energy Transport in the Planar Circular Restricted 3-Body Problem
… to the study of low energy transport in multibody gravitational systems. Despite continuing advancements in computational abilities, such studies can often be demanding or time consuming in the three-body and four-body settings. In this work, the Hamiltonian describing the planar circular …
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The Disruption of Binary Star Systems by Massive Black Holes and the Restricted 3-Body Problem
… My simulations utilize a restricted three body model to reduce the parameter space that I need to explore to simply the binary orientation, binary phase angle and the penetration depth D, that being the ratio of the closest distance the binary center of mass approaches to the black hole and …
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Theoretical studies of few-body problems
… of molecular hydrogen is treated as a 3-body problem. Usually the target is treated as an atomic target and the results are multiplied by an ad hoc factor to account for the molecular structure. Measured cross sections for proton-molecular hydrogen scattering shows structure which could …
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Using the Circular Restricted Three-Body Problem to Design an Earth-Moon Orbit Architecture for Asteroid Mining
… it is proposed to use the Circular Restricted 3-Body Problem (CR3BP) to design an orbit architecture composed of L3 Lyapunov orbits, hyperbolic invariant stable and unstable manifolds, and geosynchronous (GEO) orbits. A single shooting method (SSM) and natural parameter continuation (NPC) …
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Body Dissatisfaction and Other Sociocultural Factors as Predictors of Body Image Perceptions in Sorority and Non-Sorority Women
The purpose of this study was to explore body dissatisfaction and other sociocultural factors as predictors of body image perceptions in college-aged sorority and non-sorority women. The Social Attitudes Towards Appearance Questionnaire (SATAQ-3) (Thompson et al, 2004), the Body Dissatisfaction …
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Efficient automated implementation of higher-order many-body methods in quantum chemistry
… models with approx- imate inclusion of 3-body clusters [J. Chem. Phys. 151, 064102 (2019)] we performed a more complete assessment of the 3CC method [J. Chem. Phys. 125, 204105 (2006)] for accurate computational thermochemistry in the standard HEAT framework. New spin- integrated …
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Multiple Dalitz Plot Analysis At Cleo-C
… technique for the study of weak hadronic 3-body decays. This technique allows us to extract the relative amplitudes, phases, and fit fractions of the resonances that are the primary product of such decays. A Dalitz analysis is complicated by the presence of two or more interfering resonances …
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Strange-particle production in 8 BeV/c proton-proton interactions
… of this experiment 0. Finally,.,the .3 body final states are examined in detail. An anomalous peaking is observed in the K+1\.. invariant mass in the K+P J\ final state. The simple one pion exchange model does not seem to predi.ct adequately the distribution observed. The OEEM also …
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Accuracy of theory for calculating electron impact ionization of molecules
… One of the successful methods is the molecular 3-body distorted wave (M3DW) approximation. One of the strengths of the DW approximation is that it can be applied for any energy and any size molecule.</p><p>One of the approximations that has been made to significantly reduce the required computer …
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A Solution to the Circular Restricted N Body Problem in Planetary Systems
… in many different ways in the past - the N body problem. By focusing on planetary systems, satellite dynamics can be modeled in a fashion similar to the Circular Restricted Three Body Problem (CR3BP) with the Circular Restricted N Body Problem (CRNBP). It was found that this new formulation …
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Electron impact excitation-ionization of molecules
… this thesis, I have examined the Molecular three-body distorted wave (M3DW) or Molecular four-body distorted wave (M4DW) approximations for electron-impact ionization. These models use a fully quantum mechanical approach where all particles are treated quantum mechanically and the post collision …
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Childhood obesity treatment: integrating mobile health technology into a paediatric obesity service
… obesity, iii) explores whether changes in body composition predicts change in insulin sensitivity (IS), iv) develops and evaluates a lifestyle obesity intervention; v) develops a mobile health application for obesity treatment and vi) tests the application in a clinical trial. Methods: In …
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Impact of relocation on dairy cows
… visible and 4 = heavy plaques of manure on 3 body regions: udder, lower leg, and flank/upper leg. In experiment two, milking parlor behaviors observed were cow reactivity (REACT), latency to enter the parlor (LAT), and plasma cortisol (CORT). REACT was evaluated on a numeric scale (0 = ideal …
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Body Perception and Body Dissatisfaction: A Longitudinal Examination of Body Image and Disordered Eating Symptoms
Introduction: Body size perception and attitudes towards the body (e.g., body dissatisfaction) are two distinct but interconnected components of body image. The relationship between body perceptions and disordered eating is poorly understood. The objective of this project was to examine body size …
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Sex differences in diet-induced regulation of non-exercise activity thermogenesis in overweight and obese adults
… proposed as factors that may hinder diet-induced body mass loss. Although diet-mediated changes in PAEE and BMR are subject to large inter-individual variability, research investigating the impact of sex on diet-induced modulation of PAEE and BMR is lacking. Therefore, this study examined the …
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Exploring factors associated with upper-limb prosthesis embodiment : a mixed-methods approach
… control method influences PE (Study 3). Body ownership techniques were utilised in a virtual-hand illusion paradigm, combined with motion tracking of a myoelectric prosthesis. This tested the relative impact of electromyographic (EMG) control (via muscle flexes) on virtual PE compared to …
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A complete calculation of Shear Viscosity in Strongly Interacting matter
… of the microscopic Brueckner-Hartree Fock Many Body theory, that builds the in medio properties of interacting nucleons starting from the consistent treatment of realistic Bonn B 2-body vacuum interactions plus effective 3-body forces; Quark Matter is instead treated as a free gas of massless …
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The combined effects of purified fiber and dietary threonine on chick growth, and gut health, when infected with coccidiosis
… the 14-d feeding period, respectively, based on body weight gain. In Experiment 3, diets were based on the same semi-purified basal diet used in Experiment 2, but the fiber-containing diets were supplemented with 1.8 or 5.3 g of Thr/kg diet [75 and 125% of the previously determined Thr …
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Standardizing and Optimizing Rearing Methods of Animal Models: Influence of Diet on Growth and Reproduction in Xiphophorus Maculatus and Oryzias latipes
… defined reference diet (WAT). Fish were fed 3% body weight/day and grouped at similar stocking densities. At baseline and in monthly increments thereafter, individual fish weight, total length, and width were assessed. Beginning at 3 months of age, broods were raised from platy fish as they were …
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An Ecological Approach to Feed Management in Fish Rearing Ponds
… rates of feed addition (no feeding, 1%, or 3% body-weight/day, BW/d). Ponds in the 3% BW/d treatment had low dissolved oxygen (DO) concentrations and their surface became covered by filamentous green algae. Further, the feed did not enhance or support production of live prey for fish (Chapter …
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