Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 97-100). Also available via the Internet.

Thesis (M. Sc.), Memorial University of Newfoundland, 1998. / Restricted until June 1999. Bibliography: leaves 78-83.

Thesis (M.Phil.)--University of Hong Kong, 2001. / Includes bibliographical references (leaves 80-84) Also available in print.

Thesis (Ph.D)--Computing, Georgia Institute of Technology, 2010. / Committee Chair: Pu, Calton; Committee Member: Ahamad, Mustaque; Committee Member: Liu, Ling; Committee Member: Mark, Leo; Committee Member: Owen, Henry. Part of the SMARTech Electronic Thesis and Dissertation Collection.

Thesis (M. Sc.)--University of Canterbury, 2009. / Typescript (photocopy). "September 2009." Includes bibliographical references (leaves 89-96). Also available via the World Wide Web.

Thesis (M.S.) -- Mississippi State University. Department of Civil Engineering. / Title from title screen. Includes bibliographical references.

Network research experiments have traditionally been conducted in emulated or simulated environments. Emulators are frequently deployed on physical networks. Network simulators provide a self-contained and simple environment that can be hosted on one host. Simulators provide a synthetic environment that is only an approximation of the real world and therefore the results might not be a true re ection of reality. Recent progress in virtualisation technologies enable the deployment of multiple interconnected, virtual hosts on one machine. Virtual hosts run real network protocol stacks and therefore provide an emulated environment on a single host. The rst objective of this dissertation is to build a network emulator (viNEX) using a virtualisation platform (XEN). The second objective is to evaluate whether viNEX can be used to conduct some network research experiments. Thirdly, some limitations of this approach are identified / Computing / M. Sc. (Computer Science)

Made available in DSpace on 2014-06-11T19:24:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-28Bitstream added on 2014-06-13T19:31:34Z : No. of bitstreams: 1 luchesi_d_me_botfca.pdf: 1478619 bytes, checksum: fe1ce4874b37fec4f5c704c741316db9 (MD5) / A agroinformática, termo criado para referenciar a informática aplicada à agricultura, vem ganhando espaço e se organizando nesse novo processo de modernização da agricultura na tentativa de contribuir tanto no aumento da produtividade quanto da qualidade. A informática no ambiente agrícola se encontra presente em diversas propriedades rurais, tanto na área administrativa como na área de gestão proporcionando coordenação nas atividades, uma maior agilidade no fluxo de informações e redução de erros nas operações internas. Em função da crescente presença da informática na agricultura e da utilização de dispositivos de aquisição automática de dados no campo, a presente pesquisa apresenta o desenvolvimento de um programa computacional, Ener Sys, desenvolvido com o objetivo de transformar dados meteorológicos no setor de agroenergia. A partir de um dispositivo automático de aquisição de dados (Campbell Scientific modelo CR23X), desenvolveu-se um sistema computacional para melhor classificar e visualizar os dados de uma forma rápida e simples para o profissional envolvido com as alterações meteorológicas da área sob estudo. O sistema proposto utilizou as seguintes tecnologias computacionais: a linguagem de programação Personal Home Page Hypertext Preprocessor e o banco de dados Firebird. Os resultados obtidos ao término da pesquisa apontam que a abordagem deste trabalho facilitou o acesso a informações armazenadas em grandes massas de dados. O 2 programa computacional desenvolvido, reuniu em uma base unificada, os dados coletados através de um sistema eletrônico de aquisição de dados e facilitou o processamento dos dados proporcionando ganhos na visualização das informações como temperatura (oC), umidade (%), velocidade do vento (m.s-2), direção do vento (graus), chuva (mm) e irradiância (horizontal e vertical). / The agro-informatics, term used as reference to the informatics applied to the agriculture, it has been gaining space and getting organized on this new process of agriculture modernization to try to contribute both to the productivity increase and quality. The informatics at the agricultural environment can be found in many rural properties both in the administrative area and management area, providing coordination in the activities, a better agility with the information flow and error cutback in the internal operations. Due to the growing presence of the informatics in the agriculture and the use of automatic data acquisition devices in the field, this study presents a computer program, Ener Sys, developed with the purpose of transform meteorological data in the agro sector. From an automatic device of data acquisition (Campbell Scientific model CR23X) it was developed a computer system to better classify and visualize the data on a fast and simple way to the professional involved with the study of meteorological variations in this area. The suggested system used the following computer technologies: the Personal Home Page Hypertext Preprocessor programming language and the database Firebird. The results obtained at the end of the research show that the approach of this study made easier the access to the information stored in large amounts of data. The computer program developed, put together in one base, the data collected through an electronic system of data acquisition and made easy the data processing providing a gain on the visualization of information such as temperature (oC), humidity (%), wind speed (m.s-2), wind direction (degrees), rain (mm) and irradiance (horizontal and vertical).

Orientador: Saulo Philipe Sebastião Guerra / Banca: Odivaldo José Seraphim / Banca: Carlos Roberto Pereira Padovani / Resumo: A agroinformática, termo criado para referenciar a informática aplicada à agricultura, vem ganhando espaço e se organizando nesse novo processo de modernização da agricultura na tentativa de contribuir tanto no aumento da produtividade quanto da qualidade. A informática no ambiente agrícola se encontra presente em diversas propriedades rurais, tanto na área administrativa como na área de gestão proporcionando coordenação nas atividades, uma maior agilidade no fluxo de informações e redução de erros nas operações internas. Em função da crescente presença da informática na agricultura e da utilização de dispositivos de aquisição automática de dados no campo, a presente pesquisa apresenta o desenvolvimento de um programa computacional, Ener Sys, desenvolvido com o objetivo de transformar dados meteorológicos no setor de agroenergia. A partir de um dispositivo automático de aquisição de dados (Campbell Scientific modelo CR23X), desenvolveu-se um sistema computacional para melhor classificar e visualizar os dados de uma forma rápida e simples para o profissional envolvido com as alterações meteorológicas da área sob estudo. O sistema proposto utilizou as seguintes tecnologias computacionais: a linguagem de programação Personal Home Page Hypertext Preprocessor e o banco de dados Firebird. Os resultados obtidos ao término da pesquisa apontam que a abordagem deste trabalho facilitou o acesso a informações armazenadas em grandes massas de dados. O 2 programa computacional desenvolvido, reuniu em uma base unificada, os dados coletados através de um sistema eletrônico de aquisição de dados e facilitou o processamento dos dados proporcionando ganhos na visualização das informações como temperatura (oC), umidade (%), velocidade do vento (m.s-2), direção do vento (graus), chuva (mm) e irradiância (horizontal e vertical). / Abstract: The agro-informatics, term used as reference to the informatics applied to the agriculture, it has been gaining space and getting organized on this new process of agriculture modernization to try to contribute both to the productivity increase and quality. The informatics at the agricultural environment can be found in many rural properties both in the administrative area and management area, providing coordination in the activities, a better agility with the information flow and error cutback in the internal operations. Due to the growing presence of the informatics in the agriculture and the use of automatic data acquisition devices in the field, this study presents a computer program, Ener Sys, developed with the purpose of transform meteorological data in the agro sector. From an automatic device of data acquisition (Campbell Scientific model CR23X) it was developed a computer system to better classify and visualize the data on a fast and simple way to the professional involved with the study of meteorological variations in this area. The suggested system used the following computer technologies: the Personal Home Page Hypertext Preprocessor programming language and the database Firebird. The results obtained at the end of the research show that the approach of this study made easier the access to the information stored in large amounts of data. The computer program developed, put together in one base, the data collected through an electronic system of data acquisition and made easy the data processing providing a gain on the visualization of information such as temperature (oC), humidity (%), wind speed (m.s-2), wind direction (degrees), rain (mm) and irradiance (horizontal and vertical). / Mestre

Vehicles have been around in our society for over a century, until recently they have been standalone systems. With increased amounts of initiatives to inter-network vehicles to avoid accidents and reduce environmental impact the view of a vehicle as a standalone system needs to be reconsidered. Networking and cooperation between vehicles requires that all systems and the information therein are trustworthy. Faulty or malicious vehicle systems are thus not limited to only affecting a single vehicle but also the entire network. The detection of anomalous behavior in a vehicle computer system is therefore of importance. To improve the vehicle systems we strive to achieve security awareness within the vehicle computer system. As a first step we will identify threats toward the vehicle computer system and what has been done to address them. We perform a threat analysis consisting of fault trees and misuse cases to identify the threats. The fault trees provide away to connect the threats found with vehicle stakeholders' goals. The connection between stakeholder goals and threat highlights the need for threat mitigation. Several research initiatives are discussed to find out what has been done to address the identified threats and to find the state of the research for security in vehicle computer system. Lastly, an error model for the Controller Area Network (CAN) is proposed to model the consequences of threats applied to the CAN bus.