Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 80-85). Also available on the Internet.

Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 80-85). Also available on the Internet.

SILVA, Jefferson de Carvalho. Infra-estrutura de componentes paralelos para aplicações de computação de alto desempenho. 2008. 116 f. Dissertação (Mestrado em ciência da computação)- Universidade Federal do Ceará, Fortaleza-CE, 2008. / Submitted by Elineudson Ribeiro (elineudsonr@gmail.com) on 2016-07-11T17:12:14Z No. of bitstreams: 1 2008_dis_jcsilva.pdf: 2178874 bytes, checksum: 5bcf83ebb42062e08e5e2782af8986e8 (MD5) / Approved for entry into archive by Rocilda Sales (rocilda@ufc.br) on 2016-07-18T14:56:45Z (GMT) No. of bitstreams: 1 2008_dis_jcsilva.pdf: 2178874 bytes, checksum: 5bcf83ebb42062e08e5e2782af8986e8 (MD5) / Made available in DSpace on 2016-07-18T14:56:45Z (GMT). No. of bitstreams: 1 2008_dis_jcsilva.pdf: 2178874 bytes, checksum: 5bcf83ebb42062e08e5e2782af8986e8 (MD5) Previous issue date: 2008 / The development of new High Performance Computing (HPC) application has demanded a set of tools for reconciling high level of a abstraction with software integration. In particular, we are interested in component-based solutions presented by the scientific community in the last years. Components have been applied to meet new requirements of high performance application such as: interoperability, reusability, maintainability and productivity. Recent approaches for component based development time in HPC context, however, have not reconciled more expressive ways for parallel programming and efficiency. Unfortunately, this issue increases the software development time and gets worse when user have poor knowledge of architectural details of parallel computers and of requirements of applications. Precious time is lost optimizing parallel code, probably with non-portable results, instead of being applied to the solutions of the problem. This dissertation presents the Hash Programming Environment (HPE), a solution based on the # (reads "Hash") Component Model and on the Hash Framework Architecture. HPE defines a set of component kinds for building, deploying and executing parallel programs targeted at clusters of multiprocessors. The Hash Framework Architecture has three loosely coupled modules: the Front-End, the Back-End and the Core. The main contribution of this work is the implementation of the Back-End and the Core. The main contribution of this work is the implementation of the Back-End, since we have an early version of the Front-End and Core, both developed in Java on top of the Eclipse Platform. The Back-End was implemented as a parallel extension of a Mono, an open source component platform based on CLI (Common Language Interface) standard. Once independently done, we bound all the modules together, using web services technology. For evaluating the proposed Back-End, we have developed a small conceptual test application, composed by # components. / A construção de novas aplicações voltadas à Computação de Alto Desempenho (CAD) têm exigido ferramentas que conciliem um alto poder de abstração e integração de software. Dentre as soluções apresentadas pela comunidade científica estamos particularmente interessados naquelas baseadas em tecnologia de componentes. Os componentes têm sido usados para abordar novos requisitos de aplicações de alto desempenho, entre as quais destacamos: interoperabilidade, reusabilidade, manutenibilidade e produtividade. As abordagens das aplicações atuais baseadas em tecnologia de componentes, no entanto, não conseguem abstrair formas mais gerais de paralelismo de maneira eficiente, tornando ainda o processo de desenvolvimento difícil, principalmente se o usuário for leigo no conhecimento das peculiaridades de arquiteturas de computação paralela. Um tempo precioso, o qual deveria ser utilizado para a solução do problema, é perdido na implementação eficiente do código de paralelização. Diante desse contexto, esta dissertação apresenta o HPE (Hash Programming Environment), uma solução baseada no modelo # de componentes paralelos e na arquitetura Hash. O HPE define um conjunto de espécies de componentes responsáveis pela construção, implantação e execução de programas paralelos sobre clusters de multiprocessadores. A arquitetura Hash é constituída de três módulos distintos: o Front-End, o Back-End e o Core. A contribuição principal deste trabalho reside na implementação de um Back-End, como uma plataforma de componentes paralelos que estende o Mono, plataforma de componentes de código aberto baseado no padrão CLI (Common Language Interface). Feito isso, unimos o back-End às implementações já existentes do Front-End e do Core, ambos em java e sobre a plataforma de desenvolvimento Eclipse, através de serviços web (web service). Ao final, apresentaremos um pequeno teste de conceito, construído por um programa paralelo construído a partir de componentes #, segundo as premissas e conceitos apresentados neste trabalho.

Made available in DSpace on 2014-10-09T12:37:38Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:18Z (GMT). No. of bitstreams: 1 05331.pdf: 854473 bytes, checksum: 5ebbe017fcb96df6aa5676f168b04c50 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

Made available in DSpace on 2014-10-09T12:54:54Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:07:31Z (GMT). No. of bitstreams: 1 12798.pdf: 1929024 bytes, checksum: c22a6f1976fbfd36f63996f95ebc2302 (MD5) / Dissertacao (Mestrado Profissionalizante em Lasers em Odontologia) / IPEN/D-MPLO / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP; Faculdade de Odontologia, Universidade de Sao Paulo, Sao Paulo

Made available in DSpace on 2014-10-09T12:37:38Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:18Z (GMT). No. of bitstreams: 1 05331.pdf: 854473 bytes, checksum: 5ebbe017fcb96df6aa5676f168b04c50 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

Made available in DSpace on 2014-10-09T12:54:54Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:07:31Z (GMT). No. of bitstreams: 1 12798.pdf: 1929024 bytes, checksum: c22a6f1976fbfd36f63996f95ebc2302 (MD5) / Dissertacao (Mestrado Profissionalizante em Lasers em Odontologia) / IPEN/D-MPLO / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP; Faculdade de Odontologia, Universidade de Sao Paulo, Sao Paulo

Sequestration of nerve growth factor (NGF) significantly attenuates skeletal pain in both animals and humans. However, relatively little is known about the specific cell types that express NGF or its cognate receptors tropomyosin receptor kinase A (TrkA) and p75 in the intact bone and articular cartilage. In the present study, antibodies raised against NGF, TrkA, and p75 (also known as CD271) were used to explore the expression of these antigens in the non-decalcified young mouse femur. In general, all three antigens displayed a remarkably restricted expression in bone and cartilage with less than 2% of all DAPI+ cells in the femur displaying expression of any one of the three antigens. Robust NGF immunoreactivity was found in mostly CD-31- blood vessel-associated cells, a small subset of CD-31+ endothelial cells, an unidentified group of cells located at the subchondral bone/articular cartilage interface, and a few isolated, single cells in the bone marrow. In contrast, p75 and TrkA were almost exclusively expressed by nerve fibers located nearby NGF+ blood vessels. The only non-neuronal expression of either p75 or TrkA in the femur was the expression of p75 by a subset of cells located in the deep and middle zone of the articular cartilage. Understanding the factors that tightly regulate the basal level of expression in normal bone and how the expression of NGF, TrkA, and p75 change in injury, disease, and aging may provide insights into novel therapies that can reduce skeletal pain and improve skeletal health.

4 p. / Originally published: 2000. / Osteoporosis means “porous bones.” It is a condition where the skeleton becomes fragile and results in broken bones under normal use. Osteoporosis is a “silent” condition that happens slowly over years. The rate of bone loss (“resorption”) exceeds the rate of new bone formation (“acretion”). Many times neither a person nor a doctor is aware of weakened bones until one breaks unexpectedly. Originally published: 2000

The evolution of technology in the textile industry reached the design of embroidery patterns for machine embroidery. In order to create quality designs the shapes to be embroidered need to be segmented into regions that define different parts. One of the objectives of our research is to develop a method to automatically segment the shapes and by doing so making the process faster and easier. Shape analysis is necessary to find a suitable method for this purpose. It includes the study of different ways to represent shapes. In this thesis we focus on shape representation through its skeleton. We make use of a shape's skeleton and the shape's boundary through the so-called feature transform to decide how to segment a shape and where to place the segment boundaries. The direction of stitches is another important specification in an embroidery design. We develop a technique to select the stitch orientation by defining direction lines using the skeleton curves and information from the boundary. We compute the intersections of segment boundaries and direction lines with the shape boundary for the final definition of the direction line segments. We demonstrate that our shape segmentation technique and the automatic placement of direction lines produce sufficient constrains for automated embroidery designs. We show examples for lettering, basic shapes, as well as simple and complex logos.