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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Eidolon: adapting distributed applications to their environment.

Potts, Daniel Paul, Computer Science & Engineering, Faculty of Engineering, UNSW January 2008 (has links)
Grids, multi-clusters, NUMA systems, and ad-hoc collections of distributed computing devices all present diverse environments in which distributed computing applications can be run. Due to the diversity of features provided by these environments a distributed application that is to perform well must be specifically designed and optimised for the environment in which it is deployed. Such optimisations generally affect the application's communication structure, its consistency protocols, and its communication protocols. This thesis explores approaches to improving the ability of distributed applications to share consistent data efficiently and with improved functionality over wide-area and diverse environments. We identify a fundamental separation of concerns for distributed applications. This is used to propose a new model, called the view model, which is a hybrid, cost-conscious approach to remote data sharing. It provides the necessary mechanisms and interconnects to improve the flexibility and functionality of data sharing without defining new programming models or protocols. We employ the view model to adapt distributed applications to their run-time environment without modifying the application or inventing new consistency or communication protocols. We explore the use of view model properties on several programming models and their consistency protocols. In particular, we focus on programming models used in distributed-shared-memory middleware and applications, as these can benefit significantly from the properties of the view model. Our evaluation demonstrates the benefits, side effects and potential short-comings of the view model by comparing our model with traditional models when running distributed applications across several multi-clusters scenarios. In particular, we show that the view model improves the performance of distributed applications while reducing resource usage and communication overheads.
2

Eidolon: adapting distributed applications to their environment.

Potts, Daniel Paul, Computer Science & Engineering, Faculty of Engineering, UNSW January 2008 (has links)
Grids, multi-clusters, NUMA systems, and ad-hoc collections of distributed computing devices all present diverse environments in which distributed computing applications can be run. Due to the diversity of features provided by these environments a distributed application that is to perform well must be specifically designed and optimised for the environment in which it is deployed. Such optimisations generally affect the application's communication structure, its consistency protocols, and its communication protocols. This thesis explores approaches to improving the ability of distributed applications to share consistent data efficiently and with improved functionality over wide-area and diverse environments. We identify a fundamental separation of concerns for distributed applications. This is used to propose a new model, called the view model, which is a hybrid, cost-conscious approach to remote data sharing. It provides the necessary mechanisms and interconnects to improve the flexibility and functionality of data sharing without defining new programming models or protocols. We employ the view model to adapt distributed applications to their run-time environment without modifying the application or inventing new consistency or communication protocols. We explore the use of view model properties on several programming models and their consistency protocols. In particular, we focus on programming models used in distributed-shared-memory middleware and applications, as these can benefit significantly from the properties of the view model. Our evaluation demonstrates the benefits, side effects and potential short-comings of the view model by comparing our model with traditional models when running distributed applications across several multi-clusters scenarios. In particular, we show that the view model improves the performance of distributed applications while reducing resource usage and communication overheads.
3

Sistema de gest?o ambiental sob a perspectiva da resource-based view: um estudo de caso no verdegreen Hotel - Jo?o Pessoa/PB

Salgado, Camila Cristina Rodrigues 13 January 2014 (has links)
Made available in DSpace on 2014-12-17T14:53:18Z (GMT). No. of bitstreams: 1 CamilaCRS_DISSERT.pdf: 1680180 bytes, checksum: e2568d10eab80b3da3f9d71cc6355ec6 (MD5) Previous issue date: 2014-01-13 / The pressure for a new pattern of sustainable development began to require of modern organizations the conciliation between competitiveness and a environmental protection. In this sense, a tool that acts in the implementation of structured strategies is the Environmental Management System (EMS), which focuses on improving environmental performance. This improvement, in turn, can generate to the organizations many benefits , among which, obtaining competitive advantages, susceptible of measurement from different perspectives. One of these is the application of VRIO model, reasoned by the Resource-Based View (RBV), which considers that differences between companies occurs due to differences between its internal resources and capabilities. However, although was been found some studies in the literature that evaluate the competitive potential of certain organizations , such assessments are not performed on specific objects, like the SEM s. Thus, the aim of this study was to evaluate the resources and capabilities (environmental strategies) adopted by the SGA of the Verdegreen Hotel, identifying which of these have the potential to generate competitive advantage. For this, this exploratory-descriptive character study and delineated as field research and case study was used as data collection tools: a literature survey, semi-structured interviews, document research and participant observation. The interpretation of results and consolidation of information were conducted from a qualitative approach, using two techniques of data analysis, namely: content analysis and analysis through VRIO model. The results show that the hotel is quite structured in relation to their EMS, as well as reaching related to improving the management of environmental factors, strengthening the image and gains in competitiveness benefits. On the other hand, the main difficulties for the implementation of the system are related to employees and suppliers. With regard to environmental strategies adopted, of the 25 strategies identified, 10 showed the potential to generate competitive advantage / A press?o por um novo padr?o de desenvolvimento sustent?vel passou a exigir das organiza??es modernas que seja conciliada competitividade com a prote??o ambiental. Neste sentido, uma ferramenta que atua na implanta??o de estrat?gias estruturadas ? o Sistema de Gest?o Ambiental (SGA), que tem como foco a melhoria do desempenho ambiental. Esta melhoria, por sua vez, pode proporcionar ?s organiza??es diversos benef?cios, dentre os quais, a obten??o de vantagens competitivas, pass?veis de mensura??o a partir de diferentes perspectivas. Uma dessas ? a aplica??o do modelo VRIO, fundamentado pela Resource-Based View (RBV), que considera que a heterogeneidade entre as empresas decorre de diferen?as entre os seus recursos internos e capacidades. Contudo, apesar de serem encontrados na literatura alguns estudos que avaliam o potencial competitivo de determinadas organiza??es, essas avalia??es n?o s?o realizadas em objetos espec?ficos, a exemplo dos SGA s. Deste modo, o objetivo deste estudo foi avaliar os recursos e capacidades (estrat?gias ambientais) do SGA adotado pelo Verdegreen Hotel, identificando quais destes possuem potencial de gerar vantagem competitiva. Para tanto, este estudo de car?ter explorat?rio-descritivo e delineado como pesquisa de campo e estudo de caso, utilizou como ferramentas de coleta de dados: a pesquisa bibliogr?fica, a entrevista semiestruturada, a pesquisa documental e a observa??o participante. A interpreta??o dos resultados e a consolida??o das informa??es foram realizadas a partir de uma abordagem qualitativa, utilizando duas t?cnicas de an?lise de dados, quais sejam: an?lise de conte?do e an?lise por meio do modelo VRIO. Os resultados encontrados mostram que o hotel est? bastante estruturado em rela??o ao seu SGA, fato este que pode ser justificado pela certifica??o ambiental obtida, assim como alcan?ou benef?cios relacionados ? melhoria da gest?o dos fatores ambientais, ao fortalecimento da imagem e ganhos em competitividade. Por outro lado, as principais dificuldades para a implanta??o do sistema est?o relacionadas aos colaboradores e fornecedores. No que se refere ?s estrat?gias ambientais adotadas, das 25 estrat?gias identificadas, 10 apresentaram potencial de gerar vantagem competitiva
4

Jesus Christ’s humanity in the contexts of the pre-fall and post-fall natures of humanity: a comparative and critical evaluative study of the views of Jack Sequeira, Millard J. Erickson and Norman R. Gulley

Mwale, Emanuel 12 1900 (has links)
Bibliography: leaves 653-669 / Before God created human beings, He devised a plan to save them in case they sinned. In this plan, the second Person of the Godhead would become human. Thus, the incarnation of the second Person of the Godhead was solely for the purpose of saving fallen, sinful human beings. There would have been no incarnation if human beings had not sinned. Thus, the nature of the mission that necessitated the incarnation determined what kind of human nature Jesus was to assume. It was sin that necessitated the incarnation – sin as a tendency and sin as an act of disobedience. In His incarnational life and later through His death on Calvary’s cross, Jesus needed to deal with this dual problem of sin. In order for Him to achieve this, He needed to identify Himself with the fallen humanity in such a way that He would qualify to be the substitute for the fallen humanity. In His role as fallen humanity’s substitute, He would die vicariously and at the same time have sin as a tendency rendered impotent. Jesus needed to assume a human nature that would qualify Him to be an understanding and sympathetic High Priest. He needed to assume a nature that would qualify Him to be an example in overcoming temptation and suffering. Thus, in this study, after comparing and critically evaluating the Christological views of Jack Sequeira, Millard J. Erickson and Norman R. Gulley, I propose that Jesus assumed a unique post-fall (postlapsarian) human nature. He assumed the very nature that all human beings since humankind’s fall have, with its tendency or leaning towards sin. However, unlike other human beings, who are sinners by nature and need a saviour, Jesus was not a sinner. I contend that Jesus was unique because, first and foremost, He was conceived in Mary’s womb by the power of the Holy Spirit and was filled with the Holy Spirit throughout His earthly life. Second; He was the God-Man; and third, He lived a sinless life. This study contributes to literature on Christology, and uniquely to Christological dialogue between Evangelical and Seventh-day Adventist theologians. / Philosophy, Practical and Systematic Theology / D. Phil. (Systematic Theology)

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