Data Grids
Mostrando 1-12 de 56 artigos, teses e dissertações.
-
1. Estudo da Relação entre a Variabilidade dos índices de Vegetação e Temperatura da Região Nordeste do Brasil
Resumo Esse estudo teve por objetivo investigar a inter-relação entre a variabilidade de índices de vegetação (NDVI - índice de Vegetação de Diferença Normalizada, VCI - índice de condição da vegetação) e temperatura (TCI - índice de Condição de Temperatura) sobre o Nordeste do Brasil, utilizando dados de sensoriamento remoto, banco de dados
Rev. bras. meteorol.. Publicado em: 21/10/2019
-
2. EFFECTS OF SIZE AND SAMPLING GRID ON THE QUALITY OF APPARENT SOIL ELECTRICAL CONDUCTIVITY MAPS
ABSTRACT The apparent soil electrical conductivity (ECa) is an attribute commonly used for the characterization of the spatial variability of soil, but its determination by handheld sensors consumes considerable time and labor. The reduction in the number of sampling points allows minimize them but can result in increased uncertainty of interpolated maps. Th
Eng. Agríc.. Publicado em: 09/09/2019
-
3. ON THE PERFORMANCE OF DIFFERENT RANS BASED MODELS TO DESCRIBE THE TURBULENT FLOW IN AN AGITATED VESSEL USING NON-STRUCTURED GRIDS AND PIV VALIDATION
ABSTRACT The performances of the Standard κ-ε, RNG, Realizable, κ-ω and RSM turbulence models to describe the behavior of the flow in agitated tank reactors were evaluated. Because most of these tanks have complex geometries, structured meshing schemes are not a practical alternative in engineering. Two particular unstructured meshing schemes composed of
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
-
4. TRANSITION FROM SYSTEMATIC TO DIRECTED SOIL SAMPLING DESIGNS IN AN AREA MANAGED WITH PRECISION AGRICULTURE
ABSTRACT In agricultural areas with a historical of systematic soil sampling, alternative methodologies such as directed sampling design based on management zones (MZ) have been proposed to reduce sampling costs. The aim of this study was to evaluate the technical and economic impacts of replacing a dense systematic soil sampling design (cell size of 0.5 ha)
Eng. Agríc.. Publicado em: 19/06/2019
-
5. Sampling grids for monitoring Euschistus heros infestation in soybean
ABSTRACT Euschistus heros is one the most important pest insect in soybean fields in Brazil. Therefore, site-specific management applied for controlling E. heros can result in economic and environmental benefits. However, sampling protocols for assessing spatialtemporal variability of this soybean pest and, then, for guiding a more sustainable pest managemen
Bragantia. Publicado em: 08/06/2017
-
6. Evaluation of the Spies™ modalities image quality
Introduction The Spies™ system (Karl-Storz®) was introduced into digital ureteroscopy to improve endoscopic vision. To date, there is no data to either indicate which of the Spies modalities is better for improving diagnosis and treatment procedures, nor to compare the modalities in terms of image quality. The aim of this study was to evaluate and compa
Int. braz j urol.. Publicado em: 2017-06
-
7. APPLICATION OF OPTICAL METHOD IN MEASURING MECHANICAL VIBRATIONS IN A CANTILEVER BEAM
ABSTRACT The pertinent literature discloses a family of optical profile measuring techniques highlighting the moiré methods. The Moiré technique is based on the interference of two superimposed optical grids which produce fringe patterns which can be processed to analyze the DYNAMIC MEASUREMENT IN MATERIALS mechanical behavior. The goal of this research is
Eng. Agríc.. Publicado em: 2017-02
-
8. A New Algorithm for Shock Sensor Calculation at Supersonic Speeds on a 3D-Unstructured Grid
ABSTRACT In this paper, 3-Dsupersonic flow around two types of wings is solved using a new algorithm for shock sensor calculation. A dual-time-stepping implicit method with 2nd-order accuracy is used for time integration of the equations. In each real time step, the non-linear system of equations is solved by iterating in pseudo-time, using a multi-step inte
J. Aerosp. Technol. Manag.. Publicado em: 2016-12
-
9. INFLUÊNCIA DAS CARATERÍSTICAS E DA ARTICULAÇÃO DAS TAREFAS NA QUALIDADE DAS APRENDIZAGENS DE QUÍMICA NO ENSINO SUPERIOR
The lack of empirical findings, particularly about how to make and how to handle, intentionally, certain features of tasks, to improve the quality of learning, justifies the research questions: How to combine the features of a task to potentially improve the quality of the student learning? How to articulate different tasks over time, so as to promote good l
Quím. Nova. Publicado em: 2016-12
-
10. Determinants of capture-recapture success: an evaluation of trapping methods to estimate population and community parameters for Atlantic forest small mammals
ABSTRACT Efficiently obtaining high-quality data on animal populations and communities is paramount for ecological and conservation studies. In many instances these data come from live-trapping, the success of which depends on various factors, such as the interaction between the trap's mechanisms and the morphological or ecological characteristics of the ani
Zoologia (Curitiba). Publicado em: 2015-10
-
11. QoS management in smart grids: a Markovian approach
In Smart Grids, a variety of new applications are available to users of the electrical system (from consumers to the electric system operators and market operators). Some applications such as the SCADA systems, which control generators or substations, have consequences, for example, with a communication delay. The result of a failure to deliver a control mes
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2014-12
-
12. Verificação da previsão do tempo em São Paulo com o modelo operacional WRF / Review of weather in São Paulo with the WRF Operational Model.
Forecasts of daily maximum and minimum temperatures and rainfall performed by the operational numerical weather prediction WRF (Weather Research Forecasting) model in the São Paulo are evaluated. Initial and boundary conditions provided by the 00UTC Global Forecast System (GFS) Model and WRF run for 72 hours, with two nested grids (with horizontal grid spac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/11/2012