Structural Health Monitoring
Mostrando 25-32 de 32 artigos, teses e dissertações.
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25. Damage detection in a benchmark structure using AR-ARX models and statistical pattern recognition
Structural health monitoring (SHM) is related to the ability of monitoring the state and deciding the level of damage or deterioration within aerospace, civil and mechanical systems. In this sense, this paper deals with the application of a two-step auto-regressive and auto-regressive with exogenous inputs (AR-ARX) model for linear prediction of damage diagn
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-06
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26. Sistemas computacionais de apoio à monitoração de estruturas de engenharia civil. / Computational systems to support monitoring of civil engineering structures.
This work presents the development of computational systems to support acquisition, visualization, and treatment of data from health monitoring systems of civil structures. With these systems, it is possible to acquire, to visualize, and to filter monitored data. It is also possible to evaluate the influence of temperature, shrinkage and creep in structural
Publicado em: 2007
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27. Identificação de sistemas e avaliação da integridade de estruturas treliçadas
Monitoramento da integridade estrutural (Structural health monitoring - SHM) está relacionado à implementação de alguma estratégia para a detecção de dano em estruturas de engenharia. Este estudo geralmente envolve a observação do sistema no tempo, utilizando amostras periódicas de medições da resposta dinâmica, a partir de um grupo de sensores,
Publicado em: 2007
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28. Adducts of 2-desoxiadenosine and 2-desoxicitydine induced of tetrahydrofuran: structural characterization and detection in DNA / Adutos de 2-desoxiadenosina e 2-desoxicitidina induzidos por tetraidrofurano: caracterização estrutural e detecção em DNA
There is a huge concern to identify compounds involved in the development of harmful processes, like cancer. Tetrahydrofuran (THF) is a solvent widely used in industries and recent researches and studies indicated a carcinogenic activity in experimental animals, instigating the investigation of its possible interaction with biomolecules. DNA adducts are used
Publicado em: 2007
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29. Avaliação numérica da integridade estrutural de vigas e treliças planas / Numerical evaluation of structural integrity in beams and planar trusses.
Durante os últimos trinta anos, o monitoramento da saúde estrutural (ou Structural Health Monitoring, SMH) tem-se desenvolvido rapidamente com o objetivo de estabelecer tanto o local do dano quanto a sua magnitude. Esses danos podem ser produzidos nas estruturas pelos processos de deterioração, aos quais estão submetidas durante toda a vida útil, afeta
Publicado em: 2006
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30. Prevention of foot complications in diabetes mellitus patients: an evidence-based practice approach / "Prevenção de complicações nos pés de pessoas com diabetes mellitus: uma abordagem da prática baseada em evidências"
Diabetes is considered responsible for more than 50% of non-traumatic lower limb amputations. Every year, about 2-3% of patients develop foot ulcers, and this risk increases to 15% throughout their lives. Lower limb ulcers frequently precede amputations, 85% of serious hospitalizations cases were caused by superficial ulcers, accompanied by decreased sensibi
Publicado em: 2005
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31. Controlling system dimension: A class of real systems that obey the Kaplan–Yorke conjecture
The Kaplan–Yorke conjecture suggests a simple relationship between the fractal dimension of a system and its Lyapunov spectrum. This relationship has important consequences in the broad field of nonlinear dynamics where dimension and Lyapunov exponents are frequently used descriptors of system dynamics. We develop an experimental system with controllable d
National Academy of Sciences.
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32. Mapping human brain activity in vivo.
A wide range of structural and functional techniques now exists to map the human brain in health and disease. These approaches span the gamut from external tomographic imaging devices (positron-emission tomography, single photon-emission computed tomography, magnetic resonance imaging, computed tomography), to surface detectors (electroencephalography, magne