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京都大学 / 新制・課程博士 / 博士(情報学) / 甲第25022号 / 情博第854号 / 新制||情||143(附属図書館) / 京都大学大学院情報学研究科社会情報学専攻 / (主査)教授 伊藤 孝行, 教授 神田 崇行, 教授 森 信介, 教授 馬 強(京都工芸繊維大学) / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM

Made available in DSpace on 2014-06-11T19:23:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-03-23Bitstream added on 2014-06-13T19:50:09Z : No. of bitstreams: 1 motta_m_me_bauru.pdf: 6420276 bytes, checksum: 433e73718fc23057725e70c7504a674c (MD5) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / A síntese e as condições de processamento sempre foram temas importantes em Ciências dos Materiais. Com o interesse crescente em componentes miniaturizados, que possuam propriedades especiais, os materiais nanométricos têm se desenvolvido grandemente. Neste trabalho, a otimização do processo de obtenção da cerâmica supercondutora Y'Ba IND. 2''Cu IND. 3''O IND. 7-δ' com estrutura nanoparticulada e a obtenção de elos fracos (weak-links) suficientemente fortes e homogêneos foram estudados. As amostras foram preparadas usando o Método dos Precursores Poliméricos Modificado (MPPM) com variação do agente de quelação (ácido cítrico, ácido tartárico e EDTA) e da atmosfera de tratamento posterior (nitrogênio e oxigênio). O objetivo foi variar as condições de sinterização dos nanopós e produzir que possuíssem partículas com dimensões nanométricas de modo a obter regiões intergranulares com uma distribuição de densidade de corrente crítica estreita e, ao mesmo tempo, não ultrapassar os limites que promovam o crescimento dos grãos. Para estes estudos, foram realizadas caracterizações estruturais e microestruturais através de Espectroscopia no Infravermelho com Transformada de Fourier (FTIR), Difração de Raios X (DRX), Microscopia Eletrônica de Varredura (MEV) e Microscopia Eletrônica de Transmissão (MET), e caracterização magnética por medidas de Magnetização DC e de Susceptibilidade AC. Além dos efeitos provenientes do processamento, estudou-se a inserção de defeitos de forma controlada, substituindo parcialmente o cobre na forma Y'Ba IND. 2''Cu IND. 3''O IND. 7-δ' por M = Zn e Ni, procurando estabelecer a relação entre os defeitos causados pelas substituições (intrínsecos) e as inomogeneidades estruturais devidas ao processamento (extrínsecos) através de mudanças no diagrama de fases da Matéria de Vórtices. / The synthesis and processing conditions to produce materials always were important themes for study in Materials Science. The interest in miniaturized components with special properties like nanostructured materials has been strongly developed in these last years. In this work, the optimization processes to obtain superconducting ceramic Y'Ba IND. 2''Cu IND. 3''O IND. 7-δ' nanoparticles with strong and homogeneous weak-links were studied. The samples were prepared using the Modified Polymeric Precursos Method (MPPM) by the use of different chelating agent (citric acid, tartaric acid and EDTA) and different heat treatment atmosphere (nitrogen and oxygen). Thus, variations in the nanopowder sintering conditions in order to obtain nanometric samples with intergranular region with narrow critical current density distribution without promoting grain growth were also tested. For this, microstructural and structural characterization using Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM) were used and magnetic characterization through DC-Magnetization and AC-Susceptibility was also performed. Moreover of the processing effects, it was studied the doping controlled, replacing partially in Y'Ba IND. 2''Cu IND. 3''O IND. 7-δ' by M = Zn e Ni and looking for the relation between effects due substituent (intrinsic) and the structural inhomogeneous due processing (extrinsic) comparing its effects their at vortex matter phase diagram.

abstract: Objective: The present study sought to 1) examine the measurement of emotional complexity (EC) by examining the associations among different indicators of EC (i.e., covariation between positive affect and negative affect; overall, negative, and positive granularity; overall, negative, and positive differentiation) derived from the same data set and identifying a latent factor structure; and 2) evaluate the predictive ability of EC on psychological distress, emotional well-being, and physical functioning while accounting for stressful contexts. The utility of assessing emotion diversity (ED) as another aspect of EC was also explored. Methods: 191 middle-aged adults from a community-based study on resilience were asked to complete 30 daily diaries assessing positive and negative affect. At least 6 months later, participants completed a phone interview that assessed distress (i.e., depressive and anxiety symptoms), well-being (i.e., WHO-5 well-being, vitality, social functioning), physical functioning, and perceived stress. Results: A three-factor solution with latent factors representing overall, negative, and positive EC was identified. Overall EC significantly predicted enhanced physical functioning, but was not associated with distress or well-being. Contrary to study hypotheses, positive and negative EC were not associated with future distress, well-being, or physical functioning, though a trend toward improved physical functioning was noted for positive EC. In contrast, positive and negative ED were both associated with less distress, and better well-being and physical functioning. Overall ED was unexpectedly related to worse outcomes (i.e., more distress, less well-being, decreased physical functioning). Stress did not moderate the relationship between emotional complexity and the outcome variables. Conclusions: Different indicators of EC represent distinct aspects of emotional experience. Partial support of the hypotheses found. Physical functioning was the only outcome influenced by EC. The inclusion of stress did not change the results. The discrepancy between the findings and those in the literature may be related to reliability of EC indicators and absence of contextual factors. Further exploration of ED revealed a potentially important construct of emotional experience that is deserving of further inquiry. / Dissertation/Thesis / Doctoral Dissertation Psychology 2016

Orientador: Paulo Noronha Lisboa Filho / Banca: Alexandre José de Castro Lanfredi / Banca: Marcelo Ornaghi Orlandi / O Programa de Pós-Graduação em Ciência e Tecnologia de Materiais, PosMat, tem caráter institucional e integra as atividades de pesquisa em materiais de diversos campi da Unesp / Resumo: A síntese e as condições de processamento sempre foram temas importantes em Ciências dos Materiais. Com o interesse crescente em componentes miniaturizados, que possuam propriedades especiais, os materiais nanométricos têm se desenvolvido grandemente. Neste trabalho, a otimização do processo de obtenção da cerâmica supercondutora Y'Ba IND. 2''Cu IND. 3''O IND. 7-δ' com estrutura nanoparticulada e a obtenção de elos fracos (weak-links) suficientemente fortes e homogêneos foram estudados. As amostras foram preparadas usando o Método dos Precursores Poliméricos Modificado (MPPM) com variação do agente de quelação (ácido cítrico, ácido tartárico e EDTA) e da atmosfera de tratamento posterior (nitrogênio e oxigênio). O objetivo foi variar as condições de sinterização dos nanopós e produzir que possuíssem partículas com dimensões nanométricas de modo a obter regiões intergranulares com uma distribuição de densidade de corrente crítica estreita e, ao mesmo tempo, não ultrapassar os limites que promovam o crescimento dos grãos. Para estes estudos, foram realizadas caracterizações estruturais e microestruturais através de Espectroscopia no Infravermelho com Transformada de Fourier (FTIR), Difração de Raios X (DRX), Microscopia Eletrônica de Varredura (MEV) e Microscopia Eletrônica de Transmissão (MET), e caracterização magnética por medidas de Magnetização DC e de Susceptibilidade AC. Além dos efeitos provenientes do processamento, estudou-se a inserção de defeitos de forma controlada, substituindo parcialmente o cobre na forma Y'Ba IND. 2''Cu IND. 3''O IND. 7-δ' por M = Zn e Ni, procurando estabelecer a relação entre os defeitos causados pelas substituições (intrínsecos) e as inomogeneidades estruturais devidas ao processamento (extrínsecos) através de mudanças no diagrama de fases da Matéria de Vórtices. / Abstract: The synthesis and processing conditions to produce materials always were important themes for study in Materials Science. The interest in miniaturized components with special properties like nanostructured materials has been strongly developed in these last years. In this work, the optimization processes to obtain superconducting ceramic Y'Ba IND. 2''Cu IND. 3''O IND. 7-δ' nanoparticles with strong and homogeneous weak-links were studied. The samples were prepared using the Modified Polymeric Precursos Method (MPPM) by the use of different chelating agent (citric acid, tartaric acid and EDTA) and different heat treatment atmosphere (nitrogen and oxygen). Thus, variations in the nanopowder sintering conditions in order to obtain nanometric samples with intergranular region with narrow critical current density distribution without promoting grain growth were also tested. For this, microstructural and structural characterization using Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM) were used and magnetic characterization through DC-Magnetization and AC-Susceptibility was also performed. Moreover of the processing effects, it was studied the doping controlled, replacing partially in Y'Ba IND. 2''Cu IND. 3''O IND. 7-δ' by M = Zn e Ni and looking for the relation between effects due substituent (intrinsic) and the structural inhomogeneous due processing (extrinsic) comparing its effects their at vortex matter phase diagram. / Mestre

Microservice architecture has been prevalent for the last decade. This type of architecture is a proven solution to scalability, team autonomy, and complexity challenges. The industry acknowledges that this approach effectively addresses these issues. Through a literature review where we mainly examine the case for microservice architecture, along with a case study, we interview the project architect involved in migrating a system away from microservice architecture. Understanding the difficulties that people face when dealing with microservices is crucial. We need to identify the situations where it is appropriate to question their usage. Through our study, we also examine the process of raising the granularity in a system, i.e. migrating it towards a microservice architecture, as well as what might be the unique difficulties in moving in the opposite direction. The study does not cover differences in technically oriented quality attributes between architectural designs but how teams, architects and developers work with them. The results show that several factors, such as team size, number of teams and the scope of the system, play into whether microservices are suitable for a particular system or not, or what alternatives might suit it better. The results provide valuable insights into things worth considering when making architectural decisions.

Introducing event sourcing to a system that is based on a model following Create, Read, Update and Delete (CRUD) operations can be a challenging task and requires an extensive rework of the current system. By introducing coarse-grained events it is possible to persist the structure of the data in a CRUD model and still gain the benefits of event sourcing, avoiding an extensive rework of the system. This thesis investigates how large amounts of data can be handled with coarse-grained events and still gain the benefits of event sourcing, by comparing with the conventional way of using fine-grained events. The data to be examined is trade data fed into a data warehouse. Based on research, an event sourcing application is implemented for coarse-grained as well as fine-grained events, to measure the difference between the two event types. The difference is limited to the metrics, latency and size of storage. The application is verified with an error handler, using example data and a profiler to make sure that it does not have any unnecessary bottlenecks. The resulting performance of the two cases show that fine-grained events have excessively larger latency than coarse-grained events in most cases whereas the size of storage is strictly smaller for fine-grained events. / Att introducera event sourcing i ett system baserat på en model som använder Create-, Read-, Update- och Delete-operationer (CRUD) kan vara en utmanande uppgift och kräver en omfattande omstrukturering av det nuvarande systemet. Genom att introducera grova händelser är det möjligt att bevara hela strukturen på datan i en CRUD-modell och ändå få fördelarna med event sourcing, för att därigenom undvika en omfattande omarbetning av systemet. Detta arbete undersöker hur stora datamängder kan hanteras genom grova händelser och ändå ge fördelarna med event sourcing, genom att jämföra med det konventionella sättet att använda fina händelser. Datan som undersöks är transaktionsdata på finansiella derivat som matas in i ett datalager. Baserat på forskning implementeras en event sourcing-applikation för både grova och fina händelser, för att mäta skillnaden mellan dessa två händelsetyper. Skillnaden är avgränsad till latens och lagringsutrymme. Applikationen verifieras genom felhantering, exempeldata och profilering för att säkerställa att den inte har några onödiga flaskhalsar. Den resulterande prestandan visar att fina händelser har betydligt större latens än grova händelser i de flesta fallen, medan lagringsutrymmet är strikt mindre för fina händelser.

A exploração do paralelismo na programação em lógica e considerada uma alternativa para simplificação da programação de maquinas paralelas e para aumento do desempenho de programas em lógica. Desta forma, a integração da programação em lógica e sistemas paralelos tornou-se nos últimos anos um centro de atenções da comunidade ciêntifica. Dentre os problemas que devem ser solucionados para exploração adequada do paralelismo, encontra-se a analise de granulosidade. A análise de granulosidade determina o tamanho dos grãos, ou seja, a complexidade dos módulos que devendo ser executados seqüencialmente num único processador. Basicamente, esta analise consiste de uma refinada identificação dos grãos, visando a máxima eficiência na exploração do paralelismo. Neste sentido, devem ser realizadas considerações sobre dependências, complexidade dos grãos e custos envolvidos na paralelização. Recentemente, a analise de granulosidade na programação em lógica tem recebido atenção especial por parte dos pesquisadores. Os grãos podem ser identificados pelo programador através de primitivas de programação ou podem ser detectados automaticamente pelo sistema paralelo. Na programação em lógica, a exploração automática do paralelismo é estimulada, devido ao paralelismo implícito existente na avaliação das expressões lógicas. Além disso, a programação em lógica permite uma clara distinção entre a semântica e o controle da linguagem, proporcionando uma abordagem distinta entre a descrição do problema e o caminho para obtenção das soluções. A detecção automática do paralelismo permite o aproveitamento de programas já existentes, alem de liberar o programador do encargo de paralelizar o problema. Este trabalho dedica-se ao estudo da analise automática de granulosidade na programação em lógica. O texto propõe um modelo para geração de informações de granulosidade, denominado GRANLOG (GRanularty ANalyzer for LOGic Programming). O GRANLOG realiza uma analise estática de um programa em 16aica. Dessa analise resulta o programa granulado, ou seja, o programa original acrescido da anotação de granulosidade. Esta anotação contem diversas informações que contribuem de forma significativa com a exploração adequada do paralelismo na programação em lógica. Durante o desenvolvimento do GRANLOG foram exploradas diversas áreas de pesquisa da programação em lógica, dentre as quais destacam-se: analise de modos, analise de tipos, análise de medidas para mensuração do tamanho de termos, interpretação abstrata, analise de dependências e analise de complexidade. A integração destes t6picos torna o GRANLOG uma rica fonte de pesquisa. Além disso, a organização modular da proposta permite o aprimoramento independente de suas partes, tornando a estrutura do modelo uma base para o desenvolvimento de novos trabalhos. Além do modelo, o texto descreve a implementação de um protótipo e propõe duas aplicações para as informações de granulosidade, ou seja, auxilio a decisões de escalonamento e simulação da execução de programas. O texto apresenta ainda uma proposta para integração do GRANLOG a um modelo para execução paralela de programas em lógica, denominado OPERA. O OPERA dedica-se a exploração do paralelismo na programação em lógica e possui atualmente um protótipo para execução paralela de programas em lógica em redes de computadores. Os bons resultados obtidos com a integração OPERA-GRANLOG demonstram a relevância das informações geradas pelo modelo proposto neste trabalho. Encontra-se ainda neste texto uma proposta para inclusão do GRANLOG numa interface gráfica, denominada XOPERA. Esta interface permite a execução do protótipo OPERA e, a partir deste trabalho, gerencia também o protótipo GRANLOG. A inclusão da gerencia do GRANLOG na interface XOPERA, contribui de forma substancial para a integração OPERA-GRANLOG. / The exploitation of parallelism in logic programming is considered an alternative for simplifying the task of programming parallel machines. Also, it provides a way to increase the performance of logic programs. Because of this, integrating parallel systems with parallel programmin g has been a topic of much interest in the scientific comunity, in the last years. Among the problems that must be solved for the adequate exploitation of parallelism, there is the granularity analysis. Granularity analysis determines the size of the grains, that is, the complexity of the modules that must be sequentially executed in a single processor. Basically, this analysis consists of a refined identification of the grains, aiming the maximum efficiency in the parallelism exploitation. In this sense, considerations must be taken about dependencies, grain complexity and costs involved in the parallelizing process. Recently, many researchers have given special attention to the granularity analysis of logic programming. The grains may be identified by the programmer via programming primitives, or they may be automatically detected by the parallel system. In logic programming, the automatic exploitation of parallelism is stimulated, because of the implicit parallelism that exists in the evaluation of the logic expressions. Besides, logic programming allows a clear distinction between the semantics and the control of the language, providing a distinct approach between the problem description and the way to obtain the results. The automatic detection of parallelism permits the utilization of already written programs, also freeing the programmer from parallelizing the program by hand. This work is dedicated to the study of automatic granularity analysis in logic programming. The text proposes a model for generating granularity informations, called GRANLOG (GRanularity Analyzer for LOGic Programming). GRANLOG performs a static analysis of a logic program. From this analysis, it results a granulated program, that is, the original program increased by the granularity annotation. This annotation has several informations that contribute in a significant way to the adequate exploitation of parallelism in logic programming. During the development of GRANLOG, several research areas have been explored, namely, mode analysis, type analysis, measure analysis for measuring the size of terms, abstract interpretation, dependencies analysis and complexity analysis. The integration of these topics makes GRANLOG a good source for researchs. Besides, the modular organization proposed permits the independent improvement of its parts, making of the model structure, a base for the development of new works. Besides the model, the text describes the implementation of a prototype and proposes two applications for the granularity informations, namely, help in scheduling decisions and program execution simulation. It also presents a proposal for integrating GRANLOG to a parallel logic execution model for logic programming, called OPERA. OPERA is dedicated to the exploitation of parallelism in logic programming and, at the present time, has a prototype for parallel execution of logic programming in computer networks. The good results obtained by integrating OPERA and GRANLOG show the importance of the information generated by the model proposed in this work. There is, also, in this work, a proposal for including GRANLOG in a graphical interface, called XOPERA. This interface allows the execution of the OPERA prototype and, from now on, also manaaes the GRANLOG prototype. The inclusion of GRANLOG in the XOPERA interfaces substantially contributes to the OPERAGRANLOG intearation.