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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

Model network architectures in vitro on extracellular recording systems using microcontact printing.

Denyer, Morgan C.T., Krause, M.J., Scholl, M., Sprossler, C., Nakajima, K., Maeliske, A., Knoll, W., Offenhausen, A. January 2001 (has links)
No / A PDMS stamp is used to transfer a synthetic peptide in a given pattern to any suitable surface. Using this method two-dimensional neuronal model networks could be formed on glass substrates as well as on electronic devices and adjusted to the given microelectronic structure. The present work focuses on the mechanism of neurite guidance under simplified in vitro conditions, using in vitro guidance cues and outline the incorporation of these interfacial methods into microelectronic sensor devices.
2

Matematická analýza zachyceného síťového provozu / Mathematical Analysis of Captured Network Traffic

Soós, Tibor January 2011 (has links)
This thesis is considering with network traffic analysis and prediction of real networks default services. The first part of this paper is containing the theoretical explanation of the mathematical model’s needs. These models are mainly used as a part of simulation algorithms which are describing the processes of network traffic simulations. The second part is describing the process how to apply the models to mathematically analyze the captured traffic. The capture is including all kind of packet types which can appear on the real network. At the last part of the thesis is described the detailed design of the prediction algorithm’s which are developed in programing language of Matlab® Mathworks®.
3

Taking off from Switzerland : A qualitative study of how Swiss Start-Ups internationalize into foreign markets

Meier, Glen, Staehli, Manuel January 2016 (has links)
The purpose of this thesis is to evaluate how Start-Ups from Switzerland pattern their expansion to foreign markets and how prevalent traditional internationalization models are among Start-Ups. In order to conduct the research, the term Start-Up has been defined in comparison to other forms of enterprises. The first part of the literature review has been conducted regarding key concepts within the field of international business such as psychic distance or the choice of the right entry mode. The second part of the literature review has been conducted regarding relevant traditional internationalization theories as well as the international entrepreneurship theory, as counterpart to traditional internationalization theories. The theories have resulted in a conceptual framework that reveals the relations between the different theories. The thesis is built on a qualitative approach on the basis of a multiple case study by means of three interviews with Swiss Start-Ups. Further the thesis has followed a deductive approach to first build a profound knowledge about the internationalization process of Start-Ups. The authors of this thesis consider a good pre understanding of the research area as relevant to observe a pattern from the empirical observations. In the analysis chapter the differences and similarities between the theory and the empirical findings were discussed. The structure of both chapters, empirical findings and analysis, are structured in accordance with the conceptual framework. On the basis of the analysis, the conclusion chapter presents the responses of three research questions. Further the final chapter consists of theoretical and practical implications and recommendations as well as limitations and ends with proposals for a further research.
4

Utilising Local Model Neural Network Jacobian Information in Neurocontrol

Carrelli, David John 16 November 2006 (has links)
Student Number : 8315331 - MSc dissertation - School of Electrical and Information Engineering - Faculty of Engineering and the Built Environment / In this dissertation an efficient algorithm to calculate the differential of the network output with respect to its inputs is derived for axis orthogonal Local Model (LMN) and Radial Basis Function (RBF) Networks. A new recursive Singular Value Decomposition (SVD) adaptation algorithm, which attempts to circumvent many of the problems found in existing recursive adaptation algorithms, is also derived. Code listings and simulations are presented to demonstrate how the algorithms may be used in on-line adaptive neurocontrol systems. Specifically, the control techniques known as series inverse neural control and instantaneous linearization are highlighted. The presented material illustrates how the approach enhances the flexibility of LMN networks making them suitable for use in both direct and indirect adaptive control methods. By incorporating this ability into LMN networks an important characteristic of Multi Layer Perceptron (MLP) networks is obtained whilst retaining the desirable properties of the RBF and LMN approach.
5

A formação de rede para o atendimento de desastres de massa: o caso do acidente aéreo do voo 447 da Air France

Souza Júnior, Amaury Alan Martins de 27 April 2012 (has links)
Submitted by AMAURY SOUZA JUNIOR (amaury.aamsj@globo.com) on 2012-05-14T18:12:06Z No. of bitstreams: 1 Dissertação_Amaury Junior.pdf: 1825938 bytes, checksum: ad6111dc76dbca4864d54f5cb76e9935 (MD5) / Approved for entry into archive by ÁURA CORRÊA DA FONSECA CORRÊA DA FONSECA (aurea.fonseca@fgv.br) on 2012-06-22T19:37:16Z (GMT) No. of bitstreams: 1 Dissertação_Amaury Junior.pdf: 1825938 bytes, checksum: ad6111dc76dbca4864d54f5cb76e9935 (MD5) / Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2012-06-25T16:58:24Z (GMT) No. of bitstreams: 1 Dissertação_Amaury Junior.pdf: 1825938 bytes, checksum: ad6111dc76dbca4864d54f5cb76e9935 (MD5) / Made available in DSpace on 2012-06-25T16:58:46Z (GMT). No. of bitstreams: 1 Dissertação_Amaury Junior.pdf: 1825938 bytes, checksum: ad6111dc76dbca4864d54f5cb76e9935 (MD5) Previous issue date: 2012-04-27 / Este estudo teve por objetivo verificar como as características do modelo de rede se manifestam em resposta a desastres de massa, por meio de um estudo de caso. O objeto dessa pesquisa foi o acidente aéreo do voo 447 da Air France, que aconteceu em meados de 2009, no Oceano Atlântico em área próxima ao arquipélago de São Pedro e São Paulo, circunscrição do estado de Pernambuco. A rede formada para a resposta a esse acidente foi composta pela Aeronáutica, Marinha, Polícia Federal, Secretaria de Defesa Social de Pernambuco, INTERPOL e Secretaria de Estado da Segurança e da Defesa Social da Paraíba, tendo ainda a participação de outras instituições, que forneceram suporte logístico de pessoas e recursos em geral para a missão. As atividades desenvolvidas durante o evento compreenderam busca e resgate dos corpos, sob a coordenação da Aeronáutica e da Marinha, pré-identificação dos corpos, sob a coordenação da Polícia Federal e da Secretaria de Defesa Social de Pernambuco, necrópsia dos corpos e coleta de material postmortem, sob a coordenação da Secretaria de Defesa Social de Pernambuco e da Secretaria de Estado da Segurança e da Defesa Social da Paraíba, coleta de material antemortem, sob a coordenação da INTERPOL e da Polícia Federal, e identificação dos corpos, que teve como coordenadores a Polícia Federal e a Secretaria de Defesa Social de Pernambuco. A pesquisa realizada compreendeu três momentos distintos: a) montagem da estrutura da rede, b) análise das etapas de gerenciamento e, c) identificação das características da rede. A montagem da estrutura da rede permitiu conhecer em detalhes a rede formada, seus integrantes, objetivos e funcionamento, e subsidiar as etapas seguintes. Com isso foi possível fazer uma análise das etapas de gerenciamento da rede, a ativação, o enquadramento, a mobilização e a síntese, e como cada uma delas aconteceu na rede de atendimento do voo 447 da Air France. Por fim, foi possível identificar as principais características do modelo de rede, a pluralidade, a horizontalidade, a capilaridade, a interdependência, a flexibilidade e a dinâmica do estado, e verificar como elas se manifestaram na missão de resposta ao acidente aéreo do voo 447 da Air France. / This study aimed to verify the characteristics of the network model are manifested in response to mass disasters, through a case study. The object of this research was the crash of Air France Flight 447, which took place in mid-2009 in the Atlantic Ocean in the area near the archipelago of St. Peter (São Pedro) and St. Paul (São Paulo), district of the State of Pernambuco. The network formed to respond to this accident was composed of the Air Force, Navy, Federal Police, Secretary of Social Defense of Pernambuco, INTERPOL and the Secretary of State Security and Social Defense of Paraiba, and also the participation of other institutions, which provided logistical support of people and resources in general for the mission. The activities performed during the were search and rescue bodies, under the coordination of the Air Force and Navy, pre-identification of bodies, under the coordination of Federal Police and the Secretary of Social Defense of Pernambuco, autopsy of the bodies and postmortem material collection, under the coordination of the Secretary of Social Defense of Pernambuco and the Secretary of State Security and Social Defense of Paraiba, antemortem material collection, under the auspices of Interpol and the Federal Police, and identification of bodies, which was coordinating the Federal Police and the Secretary of Social Defense of Pernambuco. The study consisted of three distinct stages: a) mounting the network structure, b) analysis of the management steps, and c) identification of the characteristics of the network. The assembly of the network structure allowed us to understand in detail the network formed, its members, objectives and operation, and how to support the next steps. It was then possible to analyze the stages of network management, activation, framing, mobilization and synthesis, and how each one of them acted in the service network of Air France Flight 447. Finally, it was possible to identify the main characteristics of the network model, plurality, horizontality, capillarity, interdependence, flexibility and dynamics of the state, and see how they were manifested in the mission of responding to the crash of Air France Flight 447.

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