1,573 research outputs found
Atualização automática do VirusScan com o SuperDAT.
Este documento descreve o procedimento de configuração do McAfee VirusScan Anti-Virus Software (CD-ROM.Networks Associates..., 2000a; Networks Associates..., 2000b) para atualização automática dos arquivos de definição de vírus (.DAT) e também do mecanismo de varredura ("scan engine").bitstream/item/76076/1/CNPTIA-INST.TEC-3-01.pd
Projeto físico de Data Warehouse no Oracle: um estudo de caso.
Este trabalho visa compartilhar a experiência no projeto físico de um DW desenvolvido pela Embrapa Informática Agropecuária utilizando o SGBD Oracle. São apresentadas algumas características do Oracle que favorecem a manutenção e o desempenho de consultas a um DW em geral, utilizando como exemplo o DW específico.bitstream/CNPTIA/10202/1/doc35.pdfAcesso em: 28 maio 2008
Processo especializado de descoberta de conhecimento em bases de dados para a modelagem de doenças de plantas - versão 1.0.
Descoberta de conhecimento em bases de dados. A metodologia CRISP-DM. Processo especializado de descoberta de conhecimento em bases de dados para a modelagem de doenças de plantas.bitstream/item/77710/1/Doc123-livro.pd
Análise da consistência dos dados meteorológicos utilizados no Sistema de Alerta da Ferrugem do Cafeeiro - SAFCAFE.
O Sistema de Alerta da Ferrugem do Cafeeiro (SAFCAFE) é um sistema que procura predizer a evolução da taxa de infecção da doença, considerando, entre outros fatores, as condições meteorológicas locais. Tem-se como objetivo avaliar os dados de estações meteorológicas automáticas, recebidos mensalmente, visando aumentar a sua consistência. Os dados são provenientes de três cidades: Boa Esperança, Carmo de Minas e Varginha
Gerenciamento do conteúdo de projetos de pesquisa do Macroprograma 1 da Embrapa.
Este trabalho tem por objetivo apresentar o apoio que a Embrapa Informática Agropecuária tem oferecido ao Macroprograma 1 na sua gestão e no gerenciamento do conteúdo dos projetos de PD&I integrantes da sua carteira.Trabalho apresentado na V Mostra de Trabalhos de Estagiários e Bolsistas, Campinas, out. 2009
Portinari: A Data Exploration Tool to Personalize Cervical Cancer Screening
Socio-technical systems play an important role in public health screening
programs to prevent cancer. Cervical cancer incidence has significantly
decreased in countries that developed systems for organized screening engaging
medical practitioners, laboratories and patients. The system automatically
identifies individuals at risk of developing the disease and invites them for a
screening exam or a follow-up exam conducted by medical professionals. A triage
algorithm in the system aims to reduce unnecessary screening exams for
individuals at low-risk while detecting and treating individuals at high-risk.
Despite the general success of screening, the triage algorithm is a
one-size-fits all approach that is not personalized to a patient. This can
easily be observed in historical data from screening exams. Often patients rely
on personal factors to determine that they are either at high risk or not at
risk at all and take action at their own discretion. Can exploring patient
trajectories help hypothesize personal factors leading to their decisions? We
present Portinari, a data exploration tool to query and visualize future
trajectories of patients who have undergone a specific sequence of screening
exams. The web-based tool contains (a) a visual query interface (b) a backend
graph database of events in patients' lives (c) trajectory visualization using
sankey diagrams. We use Portinari to explore diverse trajectories of patients
following the Norwegian triage algorithm. The trajectories demonstrated
variable degrees of adherence to the triage algorithm and allowed
epidemiologists to hypothesize about the possible causes.Comment: Conference paper published at ICSE 2017 Buenos Aires, at the Software
Engineering in Society Track. 10 pages, 5 figure
A New Approach in the Design of Air Stripping Columns for the Treatment of Groundwater Contaminated With Volatile Organic Compounds
Volatile organic compounds are a common source of groundwater contamination that can be easily removed by air stripping in columns with random packing and using a counter-current flow between the phases. This work proposes a new methodology for column design for any type of packing and contaminant which avoids the necessity of an arbitrary chosen diameter. It also avoids the employment of the usual graphical Eckert correlations for pressure drop. The hydraulic features are previously chosen as a project criterion. The design procedure was translated into a convenient algorithm in C++ language.
A column was built in order to test the design, the theoretical steady-state and dynamic behaviour. The experiments were conducted using a solution of chloroform in distilled water. The results allowed for a correction in the theoretical global mass transfer coefficient previously estimated by the Onda correlations, which depend on several parameters that are not easy to control in experiments.
For best describe the column behaviour in stationary and dynamic conditions, an original mathematical model was developed. It consists in a system of two partial non linear differential equations (distributed parameters). Nevertheless, when flows are steady, the system became linear, although there is not an evident solution in analytical terms. In steady state the resulting ODE can be solved by analytical methods, and in dynamic state the discretization of the PDE by finite differences allows for the overcoming of this difficulty.
To estimate the contaminant concentrations in both phases in the column, a numerical algorithm was used. The high number of resulting algebraic equations and the impossibility of generating a recursive procedure did not allow the construction of a generalized programme. But an iterative procedure developed in an electronic worksheet allowed for the simulation. The solution is stable only for similar discretizations values. If different values for time/space discretization parameters are used, the solution easily becomes unstable.
The system dynamic behaviour was simulated for the common liquid phase perturbations: step, impulse, rectangular pulse and sinusoidal.
The final results do not configure strange or non-predictable behaviours
Arquitetura para modelagem e alerta da ferrugem do cafeeiro.
Este trabalho apresenta a arquitetura (Figura 1) utilizada em um projeto de modelagem e emissão de alertas da ferrugem do cafeeiro baseadas em dados meteorológicos e da cultura. Os dados utilizados são de estações de avisos fitossanitários da Fundação Procafé, localizadas nas cidades mineiras de Boa Esperança, Carmo de Minas e Varginha, e foram coletados de forma horária
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