Thesis (Ph. D.)--University of Texas at Austin, 2004. / Supervisor: Michael D. Engelhardt. Vita. Includes bibliographical references.

Thesis (Ph. D. in civil engineering)--Washington State University, December 2006. / Includes bibliographical references (p. 210-217).

Made available in DSpace on 2018-08-01T23:40:23Z (GMT). No. of bitstreams: 1 tese_10595_Dissertação João Vitor.pdf: 1565242 bytes, checksum: 57663b43394f8d3ba4c35e5b61ad6b98 (MD5) Previous issue date: 2016-09-02 / O caráter híbrido de hospitais-escola das universidades federais brasileiras se configura a partir de sua gênese: ao lado da assistência em saúde pública, ocorre a promoção do ensino e da pesquisa. As demandas contemporâneas dessas organizações requerem medidas adequadas à complexidade das diversas atividades acadêmicas e administrativas. O Programa Nacional de Reestruturação dos Hospitais Universitários Federais (REHUF), implantado em 2010, prevê a realização de ações no sentido de garantir a recuperação física e tecnológica, bem como o reordenamento do quadro de recursos humanos das unidades hospitalares universitárias, com a criação, como parte de um conjunto de medidas, da Empresa Brasileira de Serviços Hospitalares (EBSERH). Desde 2013, a Universidade Federal do Espírito Santo (UFES) tornou-se signatária da EBSERH, que assume total responsabilidade pela coordenação e execução das atividades do Hospital Universitário Cassiano Antônio de Moraes (HUCAM), provocando o surgimento de um cenário atípico na história do hospital. O estudo qualitativo de tal reforma institucional, sob a teoria de frames, objetiva a investigação de influências na cultura organizacional do HUCAM, a partir do processo de hibridização envolvendo a UFES e a EBSERH. O estudo de caso único permite uma abordagem compreensiva desse processo. A coleta de dados, mediante a entrevista individual semiestruturada, fortalece o propósito de pesquisar o tema em profundidade. Ao analisar o processo de hibridização em curso no HUCAM, comprova-se que diferentes frames subjacentes à mescla organizacional têm influenciado os rumos de sua gestão. Ocorrem resistências quanto às relações entre servidores da antiga e da atual estrutura. O aspecto comunicacional deficitário, segundo os entrevistados, também interfere na atual conjuntura do HUCAM. Esse quadro resulta em dificuldade para os gestores. Reconhece-se que as diferenças legal-trabalhistas se impõem como grande obstáculo rumo a uma integração cultural e, até que isso aconteça, a atual situação irá demandar continuamente habilidades conciliatórias dos líderes e gestores. Finalmente, espera-se que os achados possam contribuir para um melhor entendimento sobre como os conflitos de interesses que emergem no trabalho de gestão no atual contexto organizacional dos hospitais universitários se desenvolvem.

The application of the stiffness approach to the exact analysis of both planar and spatial grid frameworks of any complexity and high degree of statical indeterminacy is presented. Ordinarily, even the simplest planar grid is such a highly redundant structure that it cannot be analyzed rigorously by manual methods without recourse to some simplifying assumptions at the expense of accuracy. In general, most authors neglect the effect of member torsional rigidities in order to reduce the size of the problem and make use of the plate theory for the purpose of evaluating deflections. Matrix methods of analysis, however, remove the necessity for resorting to any such approximations and prove extremely convenient for computer application. The fundamentals of the stiffness approach are explained in complete detail and applied to the analysis of rectangular planar grids. For the purpose of comparison, example grids given by Ewell, Okubo ɛ Abrams and Woinowsky-Krieger have been analyzed by the stiffness method and the comparative results are tabulated. The principle of orthogonal transformation, which is an essential part of the analysis of diagrids and spatial grids is fully described and its application demonstrated by various numerical examples including a skew bridge, a cantilever diagrid and a hyperbolic paraboloid space grid. The application of stiffness analysis has been further extended to problems involving temperature changes and support settlements and, also, the procedure to reduce the size of symmetrical structures is described. A special successive elimination and matrix partitioning technique has also been introduced in order to enable the solution of extremely large numbers of simultaneous equations within the limited core memory capacity of digital computers, by taking advantage of the band form of the stiffness matrices of structures. A complete Fortran II computer program for the IBM 1620 and a 1405 disk file is given, as well as, sample inputs and outputs of the IBM 1620 and 7090. After the first attempts by Engessers in 1889 and Zschetzsche in 1893, a great variety of hand calculation methods have been developed for the analysis of planar grid frameworks. Among these, Hendry ɛ Jaeger's harmonic analysis and C. Massonet's anisotropic plate theory methods are the most convenient and easily applicable, in the opinion of the author. The basic assumptions and underlying principles of both these methods are outlined and the procedure of analysis is illustrated by means of a numerical example in each case. Furthermore, in order to obtain an idea of their accuracy several planar grids with 2 to 6 longitudinals have been analyzed by the stiffness method, harmonic analysis and anisotropic plate theory. In every case, two solutions have been performed, assuming the constituent members of the grid to possess first zero and then maximum values of torsional rigidity. The comparative values of the load distribution factors for the longitudinal and transversal bending moments have been tabulated. / Applied Science, Faculty of / Civil Engineering, Department of / Graduate

Within the present study, a multiple probe design across participants was used to analyze the effect of simple and single reversal deictic relational frame training on the rate correct responding to deictic relational frames in individuals with developmental disabilities. Results showed an increase in correct responding to simple and single reversal deictic relational frames after the implementation of the intervention. Furthermore, results showed that mastery level of responding was maintained in both simple and single reversal deictic frames after once training concluded. This research contributes to body of research concerning the training of deictic frames within individuals with developmental disabilities and research concerning the use of training deictic frames using pieces of the PEAK T Curriculum. The strengths, limitations, and methods to account for these issues within future research are discussed.

In response to an increasingly demand for fuel-economy, more weight reduction techniques have been proposed to create an optimum vehicle chassis. Material selection and design modification are two of the vital techniques being investigated. In addition, ample attention has been dedicated towards improving the overall strength of a vehicle chassis. Specifically, the overall objective of this study is to maximize weight savings in a truck chassis, while improving its strength characteristics.

Frame and cab suspension designs of Class 8 heavy trucks were investigated to see their effects on ride comfort. Four trucks were used in this study, each with a different frame: a factory low frame, a lightweight low frame, a factory high frame, and a lightweight high frame. There were two different frame heights and three thicknesses. Two different rear cab suspensions were also tried out on each truck. Both suspensions used two airsprings and two dampers mounted vertically to control the vertical motion. The first suspension used two horizontally mounted dampers to control the lateral motion, while the second used a panhard rod connected to a torsion spring. In addition, two different sets of airsprings and two sets of vertical shocks were tried with each suspension, giving eight suspension combinations. The trucks were shaken through the forward drive (second) axle using two 5500 lb hydraulic actuators with displacement control. The steering (first) axle was left in contact with the ground (through the tires) and the rear drive (third) axle was strapped to the truck's frame and acted solely as dead weight. The actuators were given various inputs including single frequency sinusoidal signals, step signals, and decreasing amplitude chirp signals. Both roll and heave modes of the truck were excited. The ride was measured using three accelerometers located at the B-post inside the truck cab. These accelerometers were oriented in the vertical, fore/aft (longitudinal), and lateral (left/right) directions. Numerous other accelerometers and LVDTs were used to measure frame and cab motion. This study found that there while the beaming frequency shifted downward with the lighter frames, there was only a small decrease in ride quality. The panhard suspension rod had significantly higher roll motion, but the heave amplitudes were similar to the lateral damper suspension. Switching vertical shocks had a significant effect on heave motion, but none on the cab's roll. Switching the airsprings on the cab suspension in this study had no effect. / Master of Science

abstract: Since Duffin and Schaeffer's introduction of frames in 1952, the concept of a frame has received much attention in the mathematical community and has inspired several generalizations. The focus of this thesis is on the concept of an operator-valued frame (OVF) and a more general concept called herein an operator-valued frame associated with a measure space (MS-OVF), which is sometimes called a continuous g-frame. The first of two main topics explored in this thesis is the relationship between MS-OVFs and objects prominent in quantum information theory called positive operator-valued measures (POVMs). It has been observed that every MS-OVF gives rise to a POVM with invertible total variation in a natural way. The first main result of this thesis is a characterization of which POVMs arise in this way, a result obtained by extending certain existing Radon-Nikodym theorems for POVMs. The second main topic investigated in this thesis is the role of the theory of unitary representations of a Lie group G in the construction of OVFs for the L^2-space of a relatively compact subset of G. For G=R, Duffin and Schaeffer have given general conditions that ensure a sequence of (one-dimensional) representations of G, restricted to (-1/2,1/2), forms a frame for L^{2}(-1/2,1/2), and similar conditions exist for G=R^n. The second main result of this thesis expresses conditions related to Duffin and Schaeffer's for two more particular Lie groups: the Euclidean motion group on R^2 and the (2n+1)-dimensional Heisenberg group. This proceeds in two steps. First, for a Lie group admitting a uniform lattice and an appropriate relatively compact subset E of G, the Selberg Trace Formula is used to obtain a Parseval OVF for L^{2}(E) that is expressed in terms of irreducible representations of G. Second, for the two particular Lie groups an appropriate set E is found, and it is shown that for each of these groups, with suitably parametrized unitary duals, the Parseval OVF remains an OVF when perturbations are made to the parameters of the included representations. / Dissertation/Thesis / Doctoral Dissertation Mathematics 2014

Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-07-04T15:49:28Z No. of bitstreams: 1 alexandramoreira.pdf: 2079318 bytes, checksum: e29b4ed0d8a6ae0708ca470c0396642c (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-07-13T16:20:42Z (GMT) No. of bitstreams: 1 alexandramoreira.pdf: 2079318 bytes, checksum: e29b4ed0d8a6ae0708ca470c0396642c (MD5) / Made available in DSpace on 2016-07-13T16:20:42Z (GMT). No. of bitstreams: 1 alexandramoreira.pdf: 2079318 bytes, checksum: e29b4ed0d8a6ae0708ca470c0396642c (MD5) Previous issue date: 2012-11-28 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A Semântica de Frames é uma teoria que busca estabelecer o significado de um item lexical pela evocação da cena conceitual associada. A FrameNet é uma base léxico-semântica fundamentada na Semântica de Frames e é constituída de um conjunto de frames relacionados por ligações semânticas. A metodologia de descoberta e incorporação de frames à base obedece a critérios semi-formais e envolvem alguns critérios ontológicos. Nesta pesquisa buscamos o aprofundamento dessa análise ontológica de forma a permitir uma formalização mais abrangente do processo. Em linhas gerais, esta pesquisa visou estabelecer um arcabouço metodológico que relaciona ontologias e frames de modo a verificar a ocorrência e as fronteiras de um frame, segundo critérios ontológicos e uma análise mais fundamentada do enquadramento de um enunciado em um frame, permitindo a elaboração de uma FrameNet com maior precisão. Os resultados práticos desta pesquisa foram a formalização da FrameNet, a inserção da análise ontológica na metodologia da FrameNet e a sugestão de métodos de automação desta análise. A automação aplicada possibilitou a categorização de sentenças em frames de sentidos correlatos. Como resultado teórico essa pesquisa demonstrou que os aspectos ontológicos contribuem fortemente para a elucidação do significado de sentenças polissêmicas. / Frame semantics is a theory that aims to establish the semantics of a lexical item by the evocation of the associated conceptual scene. FrameNet is a lexical-semantic database developed based on the semantics frames and is constituted of a set of frames related by semantics links. The methodology for the discovery and incorporation of frames is based on semi-formal criteria and incorporate some ontological criteria. This thesis seeks to deepen this ontological analysis in order allow greater formalization of the process. Broadly speaking, this research aims to establish a methodological framework that relates to ontologies and frames to help identify the occurrence and the borders of a frame, according to ontological criteria and a more grounded analysis of the relationship of an utterance on a frame, allowing the development of a FrameNet more accurate and more useful. The practical results of this research were the formalization of FrameNet, the insertion of an ontological analysis step in the FrameNet methodology, and the suggestion of automation methods for this analysis. The automation applied enabled the categorization of sentences in frames of related meanings. As a theoretical result this research showed that the ontological aspects contribute greatly to the elucidation of the meaning of polysemic sentences.

Since their discovery in the early 1950's, frames have emerged as an important tool in areas such as signal processing, image processing, data compression and sampling theory, just to name a few. Our purpose of this dissertation is to investigate dual frames and the ability to find dual frames which are optimal when coping with the problem of erasures in data transmission. In addition, we study a special class of frames which exhibit algebraic structure, discrete Gabor frames. Much work has been done in the study of discrete Gabor frames in Rn, but very little is known about the l2(Z) case or the l2(Zd) case. We establish some basic Gabor frame theory for l2(Z) and then generalize to the l2(Zd) case.