Tesi sul tema "Critical scenarios"
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Alam, Mohammad Saquib. "Automatic generation of critical driving scenarios". Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288886.
Trots den enorma utvecklingen inom den autonoma fordonsindustrin saknas fortfarande verktygen för systematisk testning. Verklig testning är tidskrävande och framför allt farlig. Det saknas också ett ramverk för att automatiskt generera kritiska scenarier för att testa autonoma fordon. Denna avhandling utvecklar en allmän ram för end-to-end- test av ett autonomt fordon i en simulerad miljö. Ramverket ger möjlighet att generera och utföra ett stort antal trafikscenarier på ett tillförlitligt sätt. Två metoder föreslås för att beräkna kritiken i ett trafikscenario. Ett så kallat kritiskt värde används för att lära sig sannolikhetsfördelningen för det kritiska scenariot iterativt. Den erhållna sannolikhetsfördelningen kan användas för att prova kritiska scenarier för testning och för benchmarking av ett annat autonomt fordon. För att beskriva de statiska och dynamiska deltagarna i stadstrafikscenariot som körs av simulatorn används OpenDrive och OpenScenario-standarder.
Osman, Gihan. "Scaffolding critical discourse in online problem-based scenarios". [Bloomington, Ind.] : Indiana University, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3319916.
Title from PDF t.p. (viewed on May 13, 2009). Source: Dissertation Abstracts International, Volume: 69-08, Section: A, page: 3121. Adviser: Thomas M. Duffy.
Collin, Sofie. "Synthetic Data for Training and Evaluation of Critical Traffic Scenarios". Thesis, Linköpings universitet, Medie- och Informationsteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-177779.
Examensarbetet är utfört vid Institutionen för teknik och naturvetenskap (ITN) vid Tekniska fakulteten, Linköpings universitet
Rezvani, Arany Roushan. "Gaussian Process Model Predictive Control for Autonomous Driving in Safety-Critical Scenarios". Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-161430.
Nitsche, Philippe. "Safety-critical scenarios and virtual testing procedures for automated cars at road intersections". Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/34433.
Fredström, Linna. "Reimagining climate futures : Using critical futures studies to explore scenarios for Ljungby municipality in Sweden". Thesis, Stockholms universitet, Stockholm Resilience Centre, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-194398.
Tan, Kaige. "Building verification database and extracting critical scenarios for self-driving car testing on virtual platform". Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263927.
Detta examensarbete, genomfört hos Volvo Cars, undersöker en uppbyggnadsmetod av en testdatabas för Autonomous Driving (AD) på en virtuell plattform och hur man bör extrahera kritiska scenarier från testdatabasen för att reducera antalet testfall genom optimering. Den aktuella virtuella plattformen är den model-in-the-loop (MIL) baserade Simulation Platform Active Safety (SPAS) miljön och optimeringsverktyget som användes är modeFrontier. Analysprocessen, i vilken tre abstraktionsnivåer för scenarier är föreslagna i syfte att satisfiera alla kraven för AD, redogörs för i detta projekt. Tillämpning har genomförts för att transformera krav från en specifik Operational Design Domain (ODD) samt lingvistisk representation till en testsvit som innehåller konkreta scenarier och testfall. En metamodell har konstruerats för att assistera med analysen av systemstrukturen och parameterkraven i nivån av logiska scenarier. Genomförbarheten av en scenariobaserad infallsvinkel för designen av AKF-testfall demonstreras med exemplet av konstruktionen av Traffic Congestion Support (TCS)- testdatabasen. Erhållandet av testdatabasen och den framgångsrika analysen av parametrarna för TCSfunktionen på MIL-plattformen ledde till det huvudsakliga målet med examenarbetet, vilket var att identifiera kantfall i testdatabasen genom att optimera objektfunktioner. Genom att definiera objektfunktionerna och konstruera arbetsflödet i modeFrontier efter flertalet försök med olika metoder, implementerades optimeringsprocessen med tvåseparata algoritmer. pilOPT evalueras som en bättre lösning för AD jämfört med Multi-Objective Simulated Annealing (MOSA) med avseende på beräkningstid och identifiering av kantfall. Dessutom har brus adderats till den ideala sensormodellen i SPAS för att studera inflytandet av brus i en verklig testmiljö. Resultaten visar på en stor skillnad i tid-till-kollisionsvärde, vilket är en väldefinierad objektfunktion i projektet. Detta indikerar att fler testfall har försämrats till ett kritiskt scenario om brus tas man tar hänsyn till brus, vilket visar på att inflytandet av brus inte kan försummas under testning.
Jose, Anita Ann. "Economic evaluation of small wind generation ownership under different electricity pricing scenarios". Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/7075.
Department of Electrical and Computer Engineering
Anil Pahwa
With the Smart Grid trend setting in, various techniques to make the existing grid smarter are being considered. The price of electricity is one of the major factors, which affects the electric utility as well as the numerous consumers connected to the grid. Therefore deciding the right price of electricity for the time of day would be an important decision to make. Consumers’ response to this change in price will impact peak demand as well as their own annual energy bill. Owning a small wind generator under the Critical Peak Pricing (CPP) and Time of Use (TOU) price-based demand response programs could be a viable option. Economic evaluation of owning a small wind generator under the two pricing schemes, namely Critical Peak Pricing (CPP) and Time of Use (TOU), is the main focus of this research. Analysis shows that adopting either of the pricing schemes will not change the annual energy bill for the consumer. Taking into account the installed cost of the turbine, it may not be significantly economical for a residential homeowner to own a small wind turbine with either of the pricing schemes in effect under the conditions assumed.
Bessani, Michel. "Resilience and vulnerability of power distribution systems: approaches for dynamic features and extreme weather scenarios". Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18153/tde-11072018-165318/.
Nossa sociedade é altamente dependente de commodities, como água e eletricidade, fornecidas para os usuários por sistemas de engenharia, conhecidos como infraestruturas críticas. A compreensão de como tais sistemas lidam com eventos prejudiciais é uma preocupação atual de pesquisadores, agentes públicos e sociedade. A perda de desempenho de um sistema devido a danos é relacionada à sua vulnerabilidade, e a capacidade de absorver e se recuperar dos danos é a resiliência. Neste estudo, são apresentadas abordagens para avaliar a vulnerabilidade e resiliência de sistemas de distribuição de energia considerando características dinâmicas, como os processos de falha e reconfiguração do sistema, para a vulnerabilidade, e os efeitos de climas extremos na resiliência com os processos de falha e reparo. Tais abordagens foram aplicadas em sistemas previamente apresentados na literatura, e também em um sistema brasileiro. Simulação de Monte Carlo foi utilizada para avaliar as dinâmicas de falha e reparo do sistema utilizando de modelos obtidos a partir de dados históricos, e um método para usar os modelos de tempo-até-falha durante a análise de vulnerabilidade também foi apresentado. Além disso, uma avaliação do impacto da dinâmica de reconfiguração na vulnerabilidade foi realizada e uma avaliação de resiliência sob diferentes cenários climáticos foi desenvolvida. Os modelos tempo-para-falha e reparo destacaram como fatores externos modificam as dinâmicas de falha e reparo do sistema brasileiro, o uso de modelos de confiabilidade na análise de vulnerabilidades mostrou que a consideração dos diferentes tipos de elementos geram resultados diferentes e o domínio de tempo permite novas perspectivas de análise. A investigação da reconfiguração indicou que a redução da vulnerabilidade devido à reconfiguração é afetada pelo número de chaves e também pela máxima capacidade de carga dos alimentadores do sistema de distribuição. A avaliação de resiliência mostrou que, para conectividade estrutural, redes de distribuição maiores são menos resilientes, enquanto que para fornecimento de energia, um conjunto de características, relacionados com a organização topológica e elétrica dessas redes parece ser associado à resiliência do serviço, informação útil para o planejamento. As dinâmicas avaliadas neste estudo são relevantes para a vulnerabilidade e resiliência de tais sistemas, e também para outras infraestruturas críticas. Além disso, essas abordagens podem ser aplicadas a outros sistemas, como transporte e distribuição de água. Em estudos futuros, outras características de sistemas de distribuição de energia, como geração distribuída e armazenamento de energia, serão consideradas nas análises de vulnerabilidade e resiliência.
CASTRO, ABEL ARRIETA. "DEVELOPMENT OF A ROBUST AND FAULT TOLERANT INTEGRATED CONTROL SYSTEM TO IMPROVE THE STABILITY OF ROAD VEHICLES IN CRITICAL DRIVING SCENARIOS". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2017. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33168@1.
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
PROGRAMA DE EXCELENCIA ACADEMICA
Atualmente, as novas tecnologias estão estendendo os limites físicos dos veículos automotivos em busca de mais segurança e comforto. Novas aplicações, como por exemplo veículos autônomos, exigem sistemas de controle capazes de garantir a estabilidade do veículo durante a condução autônoma ou em cenários perigosos. Na maioria dos carros modernos, os sistemas de controle atuam de forma independente, ou seja, não há coordenação ou compartilhamento de dados entre eles, pois poderiam produzir conflitos entre esses controladores. Desse modo, nenhuma melhoria na estabilidade do veículo é alcançada ou inclusive, piores cenários podem ser produzidos. Para superar esses problemas, uma abordagem integrada é projetada neste trabalho. Esta integração, definida como sistema de controle integrado (IC), usa uma regra para coordenar o programa eletrônico de estabilidade (ESP em inglês) e o sistema de direção de quatro rodas (4WS em inglês). O ESP realiza uma frenagem seletiva dependendo do estado atual do veículo. Esta condição é estimada pela diferença entre a taxa de guinada desejada, obtida usando um modelo linear do veículo, e a taxa de guinada real. Adicionalmente, as pressões de frenagem em cada roda são calculadas pelo sistema de travagem antibloqueio (ABS em inglês). Neste trabalho, uma lógica de comutação on-off e um modelo hidráulico de primeira ordem são empregadas para modelar o sistema ABS. Para projetar o 4WS, usou-se uma estratégia por alimentação direta que considera o ângulo de esterçamento das roas frontais. Finalmente, para testar as vantagens do sistema IC proposto nesta tese contra o enfoque não integrado, realizaram-se simulações considerando um modelo não-linear do veículo em cenários críticos de condução. O modelo do veículo foi derivado empregando a abordagem multicorpos e o princípio de Jourdain, e depois é validado usando um conjunto de dados experimentais obtidos por sensores montados em um carro a escala.
Nowadays new technologies are pushing the road vehicle limits further. Promising applications, e.g. self-driving cars, requires control systems that are able to ensure the vehicle s stability during autonomous driving or under dangerous scenarios. In most of modern cars, the control systems actuates independently, i.e. there is no coordination or data sharing between them. This approach can produce conflicts between these standalone controllers, thereby no improvements on the vehicle s stability are achieved or even a worse scenario can be produced. In order to overcome these problems, an integrated approach is designed in this work. This integration, defined as Integrated control system (IC), use a rule to coordinate the Electronic stability program (ESP) and the Four-wheel steering system (4WS). The ESP performs a selective braking depending of the current state of the vehicle. This condition is estimated by the difference between the desired yaw rate, obtained using a linear vehicle model, and the actual yaw rate. In addition, the braking pressures at each wheel are computed by the Anti-lock braking system (ABS). In this work, an on-off switching logic and a firstorder hydraulic model are employed to model the ABS system. To model the 4WS, a simple feed-forward control strategy that consider the front steering as input is used. Finally, in order to test the advantages of the IC system against the non-integrated one, simulations considering a nonlinear vehicle model under critical driving scenarios were performed. The vehicle model was derived employing the multibody approach and the Jourdain s principle, and then it is validated using a set of experimental data obtained by sensors mounted on a scaled car.
Walsh, Susan A. "The Effects of Pattern Recognition Based Simulation Scenarios on Symptom Recognition of Myocardial Infarction, Critical Thinking, Clinical Decision-Making, and Clinical Judgment in Nursing Students". Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/nursing_diss/18.
Tsallis, Constantino, Pedro W. Lamberti, Domingo Prato e tsallis@cbpf br. "A Nonextensive Critical Phenomenon Scenario for Quantum Entanglement". ESI preprints, 2000. ftp://ftp.esi.ac.at/pub/Preprints/esi977.ps.
Ramos, José María. "Alternative futures of globalisation a socio-ecological study of the world social forum process". Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/40986/1/Jose_Ramos_Thesis.pdf.
Elrgaiye, Ali Saad Ab. "Semi-quantitative Risk Assessment of an anaerobic digestion process". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.
Fazakerley, Victor William. "Critical issues for the future of the Australian urban water supply industry". Thesis, Curtin University, 2005. http://hdl.handle.net/20.500.11937/1246.
Fazakerley, Victor William. "Critical issues for the future of the Australian urban water supply industry". Curtin University of Technology, Graduate School of Business, 2005. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=15971.
Traditional methods, from a mechanistic perspective, of developing strategic plans for the future have a poor track record because they invariably rely on forecasting and predicting the future from historical information that, in an increasingly uncertain and fast changing world, may no longer be appropriate. Scenarios are stories about the future. They combine uncertainty and trends with creativity, insight and intuition to enable an organisation to learn and develop strategies for the future from an organic perspective. Scenarios are not predictions, but they are plausible stories about the future. The stories do allow an organisation to re-perceive a different world by questioning prevailing paradigms and assumptions. The underlying philosophical basis for scenario planning is constructivist which is consistent with the ontological position taken for this study. This study was undertaken under a qualitative research paradigm. The ontological position taken to answer the research question was constructivist with a critical perspective where realities are intangible mental constructs based on the culture and experience of individuals or groups. Constructs are more or less informed and changeable. From an epistemological perspective the constructivist position assumes that the enquirer and subject of the research are interactively linked so that findings are created. Research under a constructivist paradigm requires a hermeneutical and dialectical methodology leading to interpretation.
The methodology adopted for this study was grounded research, being a modification of grounded theory and applicable to the business environment. Data were initially gathered by semi-structured interview, the objective being two fold. 1. The data were used to elicit critical issues for the future of the Australian urban water supply industry. 2. The data were used to develop 'plausible' futures for the urban water supply industry in the form of scenarios. The data were analysed using grounded research principles and organised using NVivo (Richards 1999; NVivo 2002). After two stages of analysis, 16 major categories, focusing on the future emerged from the data. In order to write the scenarios two key uncertainties critical to the future of the urban water supply industry were required for the scenario matrix. The two selected were 'Water availability' and 'Technological change' from the water industry's contextual environment. These two key uncertainties were considered to be the most uncertain and have the greatest impact on the future of the water industry. These two key uncertainties formed the context for the scenarios into which over 200 other issues were de-dimentionalised, as in the scenario planning method, and crafted into four scenarios. A time horizon of 2025 was selected for the scenarios to reflect the water industry's long term planning horizon.
The scenarios were called 'Decadent water use', which depicts a future where there is plenty of water and technology addresses the cost of service delivery; 'Smart water world', which depicts a future where water is scarce but is addressed by technology providing alternative sources of water; 'Muddy waters', which depicts a future where there is plenty of water but technology does not address the cost of delivery and issues of infrastructure deterioration and 'Mad Max water world', which depicts a future where water is scarce and technology does not address the scarcity, the situation becomes a crisis. From the scenarios and using concepts from complex adaptive systems theory a number of critical issues emerged from the data. Some were at a philosophical level such as whether water, as a common good, fits with society's philosophy about water. Others were at a practical level for example expressing the criticality for the water industry to build community trust and support. The research notes the potential for further qualitative research in the fields of community attitudes and behaviours towards water, water services, recycling wastewater and the preparedness to pay for water services. In addition there is potential to further develop scenarios presented in this study; 'Decadent water use', 'Smart water world', 'Muddy waters' and 'Mad Max water world'; for the Australian urban water supply industry using the data from this research as a basis for group consultation.
Hjortsberg, Sofie. "Critical metals in high-growth technologies : A scenario study of equitable technology distribution in 2050". Thesis, Mittuniversitetet, Avdelningen för ekoteknik och hållbart byggande, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30792.
2017-05-02
Lima, Marlos Correia de. "O futuro das ideias: análise estrutural & incertezas-críticas prospectivas para think tanks". reponame:Repositório Institucional do FGV, 2010. http://hdl.handle.net/10438/9028.
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The objective of this study is to identify prospective criticai uncertainties for think tanks, important information for the elaboration of prospective scenarios for these organizations. A qualitative approach was adopted. Data were collected from literature and from interviews with key executives from Fundação Getulio Vargas and international specialists were analyzed. A theoretical evaluation of the main think tanks definitions and classifications was performed, and the common elements across the definitions were identified and used to construct a suitable think tank definition that was considered in the subsequent phases of the study. The URCA Structural Analysis Model (MARQUES, 1988) was applied to evaluate 21 prospective variables selected from the collected data. The results indicate 8 prospective criticai uncertainties for think tanks: 1) Think tanks internationalization; 2) Agenda globalization; 3) International projection of the nations; 4) Competition among think tanks; 5) Competition between think tanks and ONGs, advisers, web and other information providers; 6) Technical staff; 7) Leading group; and 8) Financiai diversification and sustainability.
EI objetivo de este trabajo es identificar las incertidumbres-críticas prospectivas para think tanks, un importante subsidio para la elaboración de escenarios prospectivos para esas organizaciones. EI enfoque es cualitativo: los datos, recolectados por medio de bibliografía y entrevistas con ejecutivos estratégicos de la Fundação Getulio Vargas y especialistas internacionales, fueron tratados por el método de Análisis Estructural. Para este fin, se utilizó el Modelo URCA (MARQUES, 1988). Creemos que se trata de un abordaje inédito en el área. La base teórica analiza las definiciones y clasificaciones de think tanks, identifica atributos comunes a tales conceptos y, a partir de esta referencial, presenta la definición think tank objeto de este estudio. A seguir, a partir de los datos recolectados, son descritas 21 variables prospectivas. Esta lista inicial de variables es sometida ai Modelo URCA de Análisis Estructural (MARQUES, 1988), indicando, como resultado, ocho incertidumbrescríticas prospectivas para think tanks: Internacionalización de think tanks; Globalización de la agenda; Proyección internacional de las naciones; Competencia entre think tanks; Competencia de ONGs, consultorías, redes y similares; Cuadro técnico; Cuerpo directivo; y Diversificación y sustentación financieras.
O objetivo deste trabalho é identificar as incertezas-críticas prospectivas para fhínk fanks, importante subsídio na elaboração de cenários prospectivos para essas organizações. O enfoque é qualitativo: os dados, coletados por bibliografia e em entrevistas com executivos estratégicos da Fundação Getulio Vargas e especialistas internacionais, foram tratados pelo método da Análise Estrutural. Para tanto, utilizouse o Modelo URCA (MARQUES, 1988). Acredita-se tratar de abordagem inédita na área, pois registro de Análises Prospectivas para thínk tanks não foram localizados. A base teórica analisa diversas definições e classificações de fhínk fanks, identifica atributos comuns a tais conceitos e, a partir deste referencial, apresenta a definição de thínk tank, objeto deste estudo. Em seguida, a partir dos dados coletados, são descritas 21 variáveis prospectivas. Essa lista inicial de variáveis é submetida ao Modelo URCA de Análise Estrutural, gerando, como resultado, oito incertezascríticas prospectivas para thínk fanks: Internacionalização de thínk fanks; Globalização da agenda; Projeção internacional das nações; Concorrência entre thínk tanks; Concorrência de organizações não-governamentais, consultorias, web e similares; Quadro técnico; Corpo dirigente; e Diversificação e sustentação financeiras.
Koné, Tchoya Florence. "Contribution à la démonstration de la sécurité du véhicule autonome, basée sur une stratégie de génération de scénarios, modélisée par niveaux d’abstraction et orientée par la sensibilité du VA, pour une validation par simulation". Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0182.
This CIFRE thesis, carried out within Stellantis, provides a scenario generation strategy, modelled by levels of abstraction and oriented by the sensitivity of the AV, for a simulation-based validation process. This work is within the scope of the ISO PAS 21448 /SOTIF (Safety Of The Intended Functionality) standard.To do this, the approach followed is based on five contributions: (1) An analysis of the functional architecture of the AV and the highlighting of the challenges related to its safety validation: normative aspects, simulation chains, the presence of uncertainty in the operational environment of the AV. (2) The proposal of a conceptual framework (knowledge model) on which the scenario generation methodology to be proposed later will be based. (3) A summary of the indicators used in the literature, as well as those that we will use in our final generation strategy, including the sensitivity indicator. It also gives a structure of the system of scenario generation and simulation based validation of the safety of the AV, as well as the way in which the indicators will be exploited in this structure. (4) The proposal of a scenario generation heuristic and the estimation of the risk indicator associated with the AV. This fourth contribution is based on the elements developed in the previous contributions: the proposed conceptual model (contribution 2), the structure of the generation and validation system and the associated indicators (contribution 3). (5) Finally, the last contribution is an implementation of the previous proposals via a case study.Keywords: Autonomous Vehicle (AV), Safety Of The Intended Functionality (SOTIF), Functional performance limitation, Functional insufficiencies, Critical scenarios, Sensitivity metric, Scenarios generation strategy, Simulation-based Validation process
Montabert, Cyril. "Supporting Requirements Reuse in a User-centric Design Framework through Task Modeling and Critical Parameters". Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/33152.
Better establishing requirements will benefit design. By adapting task-modeling techniques to support critical parameters within the requirements-analysis phase of scenario-based design, we are able to provide designers with a systematic technique for capturing requirements in a reusable form that enables and encourages knowledge transfer early in the development process. The research work presented concentrates on the domain of notification systems, as previous research efforts led to the identification of three critical parameters.
Contributions of this work include establishment of a structured process for capturing critical-parameter requirements within a user-centric design framework and introduction of knowledge reuse at the requirements phase. On one hand, adapting task models to capture requirements bridges the gap between scenarios and critical parameters, which benefits design from user involvement and accurate requirements. On the other hand, using task models as a reusable component leverages requirements reuse which benefits design by increasing quality while reducing development costs and time-to-market.
Master of Science
Godoy, Stênico Joselaine Andréia de, e Marcela Soares Polato Paes. "Paulo Freire and Social Movements: An Analysis of the Brazilian Scenario". Pontificia Universidad Católica del Perú, 2017. http://repositorio.pucp.edu.pe/index/handle/123456789/117650.
En este artículo se presenta el pensamiento de Paulo Freire como una perspectiva de análisis y reflexión sobre el movimiento social en el contexto de la sociedad brasileña. Es objeto de la presente acción y reflexión contribuir a la tarea de reinventar la pedagogía crítica en la construcción de movimientos sociales. Se tratade una investigación cualitativa dividida en dos etapas: la primera está dedicadaa la presentación del marco teórico, y luego de un análisis de los movimientossociales brasileños, se deja al descubierto el origen de las luchas y avance a lasdiscusiones más recientes que se ha emprendido en Brasil en busca de la libertady la justicia en la recuperación de la humanidad. Una lucha incesante que pide laPedagogía Liberadora de Freire, herramienta clave en el proceso educativo, y porlo tanto, en la constitución de los movimientos sociales.
Este artigo apresenta o pensamento de Paulo Freire enquanto uma perspectiva deanálise e reflexão sobre o movimento social no contexto da sociedade brasileira.Constitui ação e objeto desta reflexão contribuir na tarefa de reinventar apedagogia crítica na construção dos movimentos sociais. Trata-se de uma pesquisaqualitativa dividida em dois momentos: o primeiro é dedicado a apresentaçãodo aporte teórico, e em seguida, uma análise dos movimentos sociais brasileiros,expondo a origem das lutas e avançado para as discussões mais recentes que setem empreendido no Brasil na busca da liberdade e da justiça na recuperação dahumanidade roubada. Uma luta incessante que clama pela Pedagogia Libertadorade Freire, instrumento fundamental no processo de conscientização, e, portanto,na constituição dos movimentos sociais.
Orlando, Chiara. "Analisi critica di alcuni scenari di effetto domino in uno stabilimento a rischio di incidente rilevante". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Carvalho, Claudio Bezerra de. "Avaliação critica do planejamento energetico de longo prazo no Brasil, com enfase no tratamento das incertezas e descentralização do processo". [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264571.
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
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Resumo: Este trabalho traz uma avaliação critica do planejamento energético de longo prazo realizado no Pais nos últimos anos e aponta tanto para a necessidade de uma melhor integração entre as atividades de planejamento energético, elaboração de políticas públicas e regulação dos mercados de energia, como para uma premente descentralização do processo de planejamento. Como resultados desta análise e com base em experiências bem sucedidas no exterior, são propostos avanços metodológicos para a elaboração de futuras projeções e o desenvolvimento de um modelo integrado de projeção da demanda e da oferta de energéticos. Como a aplicação de tal modelo está vinculada à utilização de uma base de dados ampla e consistente, é proposto o desenvolvimento de um sistema nacional de informações energéticas, integrado a um sistema de informações executivas, cujo objetivo é servir de suporte para as atividades desenvolvidas pelo Ministério de Minas e Energia. Discute-se os vários métodos de tratamento das incertezas nos modelos energéticos, com destaques para a elaboração de cenários alternativos de desenvolvimento e para o uso da técnica Delphi de levantamento de opiniões de especialistas. Monta-se, por fim, à guisa de um estudo de caso que visa contribuir para o necessário processo de descentralização do planejamento energético no País, cenários alternativos de desenvolvimento para a projeção da demanda energética do Estado da Bahia, de uma forma concatenada com cenários semelhantes no âmbito nacional
Abstract: This work brings a critical evaluation of the long-term energy planning carried out in the country in the last years, pointing out both for the need of a better integration of the activities concerning energy planning, policy making and regulation of energy markets, and for an urgent decentralization of the planning process. As results of this analysis and based on successful experiences abroad,methodological advances are proposed for the elaboration of future forecasts, together with the development of an integrated model for forecasting energy demand and supply. As the application of such a model requires a broad and consistent data basis, setting up a national system of energy information is proposed, integrated to a system of executive information, aimed to support the activities of the Ministry of Mines and Energy. The several methods for treating uncertainties in energy modeling are discussed, with emphasis on the elaboration of alternative development scenarios and the use of the Delphi technique for collecting and processing the opinions of specialists. At the end, alternative development scenarios for forecasting the energy demand in the State of Bahia, linked to similar scenarios at the national level, are elaborated, as a study case aimed to contribute for the necessary decentralization process of energy planning in the country
Doutorado
Planejamento de Sistemas Energeticos
Doutor em Planejamento de Sistemas Energéticos
Eliopoulos, Maria Fernanda. "Managing New Service Development through Relationship Marketing.- : An application of Six Sigma DMAIC methodology in a Telecom Company". Thesis, KTH, Industriell Management, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103057.
Cherqui, Marie-Claude. "Raymond Queneau, écrivain de cinéma". Thesis, Paris 3, 2009. http://www.theses.fr/2009PA030005.
Raymond Queneau, who was born in 1903, grew up and lived at the pace of cinematograph that was hardly older than him. Througout his life, in his journals and letters, he reported his life as a regular movie-watcher. He filled his writings, his poetry and his novels with the blossoming universe of movie theatres, movie stars and masterpeices. In his work appears a dreamed and thougt out world, made of his shadows and his lights. Fed with cinema, he also fed it. Aside from his work as a poet in literature, he also, all along his life and without losing his legendary sense of humour, worked as a cinema writer. In this sometimes ungrateful job, he occupied many different positions : film critic, juryman in festival, writer of comments on movies, script writer, dialogue writer, songwriter, etc... He even occasionally became a filmmaker or an actor. To report chronologically of the totality of his work, to approach the treatment of the cinematographic art in his literary work, is what we suggest in this study : looking for Raymond Queneau writer of the twentieth century and “homo-cinematographicus”
Salomão, Nizi. "Identificação e análise dos fatores críticos de sucesso dos projetos de uma empresa do terceiro setor do ramo da saúde especializada em oncologia: caso Fundação XPTO". reponame:Repositório Institucional do FGV, 2015. http://hdl.handle.net/10438/14979.
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On the current business scenario, due to the speed of changes and information dynamism of contemporary world, it has been widely discussed how organizations can respond swiftly to these movements and thereby build a competitive advantage to ensure business sustainability. Despite the social and non-profit character of the Third Sector companies, this segment also looks for best management practices focused on results. From this perspective, thinking about how management by projects can promote positive change by leveraging actions and resources, this work aims to explore, through a case study, what are the success factors of the projects in a Third Sector Company, on health sector, specialized in oncology, in a time frame of twenty two (22) months. Multiple evidence sources were used: analysis of historical documentation of four (04) projects of avarage and high complexity, observation and accompaniment of five (05) professionals at the implementation stage of a highly complex project, verification of qualitative research maturity’s results in projects and research of project’s portfolio, through the report of twenty (20) health and administrative professionals. In the academic area, several studies had as its study object the critical success factors of the projects. However, is still needed to explore the subject on health sector.
No atual cenário empresarial, em consequência da velocidade das mudanças e do dinamismo das informações no mundo contemporâneo, vem sendo amplamente discutido como as organizações podem responder de forma célere a esses movimentos e, assim, construir uma vantagem competitiva para assegurar a sustentabilidade dos negócios. Não obstante o caráter social e não-lucrativo das empresas do Terceiro Setor, esse segmento também caminha na busca de práticas de gestão baseadas em resultados. Nessa perspectiva, pensando em como a gestão por projetos pode promover mudanças positivas pela potencialização de ações e recursos, este trabalho tem como objetivo explorar, por meio de um estudo de caso, os fatores críticos de sucesso dos projetos em uma empresa do Terceiro Setor do ramo da saúde, especializada em oncologia, em um horizonte temporal de vinte e dois (22) meses. Foram utilizadas múltiplas fontes de evidências: análise da documentação histórica de quatro (04) projetos de média e alta complexidades, observação e acompanhamento de cinco (05) profissionais na fase de execução de um projeto de alta complexidade, verificação dos resultados da pesquisa qualitativa de maturidade em projetos e investigação do portfólio de projetos, através do relato de vinte (20) profissionais de saúde e administrativos. Na área acadêmica, diversos estudos tiveram como objeto os fatores críticos de sucesso dos projetos. No entanto, existe a necessidade de exploração do tema no ramo da saúde.
"Scaffolding critical discourse in online problem-based scenarios". INDIANA UNIVERSITY, 2009. http://pqdtopen.proquest.com/#viewpdf?dispub=3319916.
CIAVARELLA, STEFANO. "Network analysis and algorithm solutions in critical emergency scenarios". Doctoral thesis, 2017. http://hdl.handle.net/11573/932663.
Sander, Lisa. "Evaluation of critical fault scenarios for operation with inherent overload in HVDC stations". Thesis, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-357954.
D'Alessandro, Guido. "ENABLING TECHNOLOGY FOR WIRELESS POWER TRANSMISSION SUPPLY TO REMOTE EQUIPMENT IN CRITICAL LOGISTIC SCENARIOS". Tesi di dottorato, 2016. http://www.fedoa.unina.it/11145/1/d%2527ALESSANDRO_GUIDO_28.pdf.
Irwin, Ruth Erminia. "The Evaluation of Teaching the Nursing Process Using Traditional Lecture, Campus Laboratory, Clinical, and the Addition of High Fidelity Human Simulation (HFHS) Unfolding Scenarios". 2013. http://digital.library.duq.edu/u?/etd,162303.
School of Nursing;
Nursing
PhD;
Dissertation;
Martins, João Bernardo Caldeira Pires Calaça. "Inter-Team and Inter-Player Game Patterns Variability in Critical Game Scenarios in high-level Volleyball". Doctoral thesis, 2022. https://hdl.handle.net/10216/139929.
This thesis aimed to analyse the variability in inter-team and inter-player performance associated with game patterns during critical game scenarios. An investigative thesis comprising seven articles is outlined: (i) two theoretical (a narrative review on game patterns variability and a systematic review of critical scenarios in sports games); and (ii) five empirical (one pilot study, creating and testing an innovative instrument, two empirical articles focused on inter-team variability in critical game scenarios, and two focused on inter-player variability for the same positional status in high-level women's and men's volleyball). Of the five types of variability conceptually considered in the narrative review (inter-team variability across sex/gender, inter-team variability across competitive levels, inter-team variability within the same competitive level, inter- and intra-team variability due to positional status, and intra-team variability within the same positional status) further investigation of inter-team variability within the same competitive level and intra-team variability within the same player role was required. These latter two types of variability were focused on mostly in the empirical articles of this investigation to provide a more detailed perspective of the game patterns of teams and the players of the same position. Major findings were that: (i) within the same competitive level there were differences in game patterns among teams, both men and women's, including between the two highest-ranked teams; (ii) the variability in approach to attack in critical scenarios (e.g., under non-ideal setting conditions and/or after consecutive attack errors) indicated there are different solutions to similar problems; and (iii) there were inter-player differences among players with the same positional status, particularly in their approaches to the game after previous actions and consecutive errors. The results presented in this thesis highlight the following ideas: (i) within the same competitive level there are differences in the ways that teams approach the game, indicating that teams are modelled following the characteristics of their players; and (ii) even among those with the same positional status, there is subtle but relevant variability among players, highlighting that coaches should devote attention when assigning players to positional statutes.
Chen, Jung-Hua, e 陳容花. "Influence of Rainfall Infiltration on Unsaturated Soil Slope and Critical Volumetric Water Content under Different Rainfall Scenarios". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/38957571487701006706.
國立臺灣科技大學
營建工程系
103
ABSTRACT The majority of Taiwan’s hillsides belong to unsaturated soil slope. Seepage in these unsaturated slopes situated above groundwater level would easily lead to changes of hydrological characteristics (such as matric suction, etc.) when encountered rainfall, and then trigger subsequent slope stability problems. This study adopted a field case and used numerical analysis program SEEP/W and SLOPE/W module to conduct seepage simulation and stability analysis on unsaturated soil slopes under different rainfall scenarios. In addition to simulation and exploration of original alert modes (rainfall, groundwater level), this study also investigates changes of hydrological characteristics and stability in unsaturated soil slopes caused by rainfall infiltration, and then identify more accurate landslide disaster occurrence indicators also having a mechanical basis for potential application by related agencies in implementing disaster prevention and early warning measures. This study found that the slope stability analysis results of unsaturated soil slope would vary under same cumulative rainfall but different durations. Therefore, only cumulative rainfall was used as indicator parameter of whether landslide will occur or not, in terms of this case study, its accuracy still has room for improvement. And under different rainfall scenarios the changes of water level in slopes with thick colluvium or deep groundwater are not significant. The majority of damage types of unsaturated soil slope belong to shallow landslide, and slope failures mostly occur along the wetting front, while the generation of wetting front represents the dissipation of matric suction, as a result the shear strength of soil will also drop, and this is one of the important factors causing slope instability. The analytical results exhibit critical value characteristic of volumetric water content prior to slope failure induced by rainfall infiltration. In addition, this critical volumetric water content would not be influenced by rainfall conditions and positions in the slope. Therefore, using critical volumetric water content as a landslide disaster occurrence indicator should be a feasible direction and warrants further study.
Shih, Mei-Ju, e 施美如. "Cellular Resource Management for Three Internet-of-Things Scenarios: Energy-Harvesting, Low-Cost & Mission-Critical, and Proximity-Based". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/67716487956654347377.
國立臺灣大學
電信工程學研究所
105
Internet-of-Things (IoT), also known as Machine-to-Machine (M2M) communications and Machine-Type Communication (MTC), has attracted much attention in the next-generation wireless communications network. Specifically, in view of 5G targets, i.e., extreme mobile broadband (eMBB), ultrareliable MTC (uMTC) and massive MTC (mMTC), “IoT” has played a key role in the evolution of the 5G cellular network. On the other hand, with increasing data traffic demand and deficient wireless resources, radio resource management is challenging and of great importance. Since IoT has varied requirements according to needed services, a unitary solution of resource management may not be appropriate for all IoT scenarios. In this dissertation, we investigated IoT resource management in the cellular network, focusing on three IoT features: energy-harvesting IoT, low-cost and mission-critical IoT, and proximity-based IoT. To review IoT cellular resource management, we investigated two fundamental IoT problems: network congestion and collision minimization. Such problems are caused from massive numbers of devices. For example, in a traditional uplink/downlink cellular network, IoT data traffic is mostly uplink-oriented. Therefore, we first studied the network entry procedure and uplink data transmission for energy-harvesting IoT and low-cost and mission-critical IoT. Recently, with the advent of sidelink (direct link) communications, also known as Device-to-Device (D2D) communications, proximity-based IoT allows devices to exchange local information without bypassing the evolved NodeB (eNB). Thus, we also explore the D2D resource allocation for collision minimization problem in proximity-based IoT. It is worthy to note that D2D communications can reuse uplink resources. For IoT uplink resource management, we first considered that IoT devices are energy-harvesting, which means they can harvest ambient energy on their own and operate without human intervention. This scenario becomes more popular for IoT devices deployed in places hard to access and for the purpose of cost saving. Based on Long-Term Evolution-Advanced (LTE-A) systems, we built a practical simulation platform for an uplink procedure and studied the network entry procedure. Compared to the naïve LTE scheme, energy-aware push-based, pull-based, and hybrid schemes are further proposed based upon how the Random Access CHannel (RACH) resources are selected and operated. Energy-aware mechanisms are recommended for energy-harvesting IoT. In a push-based scheme, performance such as RACH collision, delay and energy efficiency begins to degrade when the device scalability exceeds an upper bound. In contrast, a pull-based scheme achieves its maximal throughput and energy efficiency at the cost of almost linearly increasing delay and schedule signaling cost. Instead, the hybrid scheme, with adaptive network access and estimation of device number, is more flexible. Thus, the hybrid scheme can achieve energy efficiency, maximal throughput and adequate delay across different traffic loads and energy-harvesting rates. Afterwards, we studied the uplink dedicated resource allocation for the low-cost and mission-critical IoT co-existing with Human-to-Human (H2H) communications. We modeled the device heterogeneity by energy awareness levels, i.e., low-cost IoT devices with low energy awareness, and mission-critical IoT devices with high energy awareness. An indirect mechanism was designed with the waiting-time auction and direct access price. This prioritized resource allocation framework was analyzed by the Bayesian Stackelberg game, and achieved unique Bayesian Nash equilibrium, and interregional and waiting-time-based truth-telling. Bayesian Nash incentive compatibility, interim efficiency, interim individual rationality, and weakly budget balance are maintained with this mechanism. Except for the eNB’s announcement, the framework does not introduce extra signaling exchange compared to the LTE standard. What’s more, the design of a price-based resource pool for mission-critical IoT compensates the operator financially. An operator can design dynamic prices according to M2M/H2H traffic loads and resource pool partitions. Finally, for IoT sidelink resource management, we designed D2D resource allocation schemes following the standardization progress and constraints in 3rd Generation Partnership Project (3GPP) to realize the proximity-based IoT scenario. Based on an assumption of no feedback and half-duplex mode, we designed the operation of Scheduling Assignment (SA) and data resources, in order to achieve collision minimization when the eNB is out of function. According to whether the SA pool is mapped to the data resource pool, we propose two enhanced schemes: explicit and implicit. These approaches, utilizing the sensing results, outperform Rel-12 Mode 2 in terms of data collision probability and throughput. The enhanced explicit approach, similar to Rel-12 Mode 2, avoids SA collisions by resource hopping. The implicit approach can reach data collision free in short iterations via SA admission control, while the amount of successful proximity-based IoT devices is restricted by the channel number. A comparison of the three schemes are provided, which serves as the foundation for the future standard development such as Vehicle-to-Vehicle (V2V) communications and D2D enhancement. To sum up, this dissertation provides abundant research on uplink and sidelink resource allocation for customized IoT scenarios: a network entry design for energy-harvesting IoT, an uplink resource management for low-cost and mission-critical IoT, and a sidelink autonomous resource selection for proximity-based IoT.
Modiha, Pulane. "Critical evaluation of operational risk tools used in regulatory capital calculations". Diss., 2012. http://hdl.handle.net/2263/26522.
Dissertation (MBA)--University of Pretoria, 2012.
Gordon Institute of Business Science (GIBS)
unrestricted
Chen, Cheng-Hwa, e 陳振華. "A Study on the Demands for the Military Critical Technologies and Skilled Personnel Subjects by Scenario". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/03354344380179258486.
國防大學中正理工學院
兵器系統工程研究所
93
The project is directed to study the future trend of defense technology and the required science and technology core capability for future defense needs. The study uses mainly the expert interview and the scenario analysis approach, assuming the war scene that may take place in the Taiwan Straits in the future. There are four kinds of scenarios: attack with the guided missile, the unmanned plane or cruising the guided missile attacking, sneaking warship attacking, and the electric magnetic pulse weapon attacking. The critical weapon and its corresponding critical technologies needed through the types of war are identified for each scenario in the future. The methods of the questionnaire survey and expert interview are used. At the same time, the military organization and research and development and the education delivery capacity that the organizations can offer to the corresponding skilled personnel to the above stated critical technologies are investigated, by setting up the talent bank that in common use between military and civilian sectors, regard as the foundation of expanding the capacity of development in science and technologies of national defense.
TARTUFERI, Emanuele. "L'impronta ecologica della Regione Marche". Doctoral thesis, 2018. http://hdl.handle.net/11393/251180.