Project Gradient Methods
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Horizontal and vertical positional accuracy assement of cartographic products of the amazon region derived from interferometric sar data in X and P bands from ORBISAR sensor / Avaliação da acurácia posicional planialtimétrica de produtos cartográficos da Região Amazônica extraídos de dados SAR interferométricos nas bandas X e P do sensor ORBISAR
The Geographic Service of the Brazilian Army (DSG) is running a major mapping project in Brazil, called ´´Radiography Amazon", the region known as ´´Empty Mapping the Amazon." This area, approximately 1,8 million km$^2$, has not had, to date, appropriate land information mapping at scales larger than 1:250,000, except insufficient cartographic documents
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/11/2011
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2. DIVERSIDADE DE ÁCAROS EDÁFICOS (ACARI: ORIBATIDA) E REDUÇÃO DO ESFORÇO AMOSTRAL NO GRADIENTE ECOLÓGICO DE 10 MIL HA DE FLORESTA DE TERRA-FIRME DA RESERVA DUCKE, MANAUS, AM, BRASIL
Sampling oribatid mites in large areas using conventional methods is expensive, timeconsuming, and this constrains their use on monitoring program. In 2001/2002, a system of 9 N-S and 9 E-W trails was installed in the reserve. Following the RAPELD method, plots were distributed over a 64 km2 grid of trails spaced 1 km apart, resulting in 72 plots with a mini
Publicado em: 2010
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3. Accelerating the Levenberg-Marquardt method for the minimization of the square of functions with box constraints / Acelerando o metodo de Levenberg-Marquardt para a minimização da soma de quadrados de funções com restrições de caixa
In this work, we present an active set algorithm for minimizing the sum of squares of smooth functions, with box constraints. The algorithm is highly inspired in the work of Birgin and Mart´inez [4]. The differences are concentrated on the chosen search direction and on the use of an acceleration technique to update the step. At each iteration, we define an
Publicado em: 2008
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4. Otimização de seções transversais de concreto armado: aplicação a pórticos planos / Reinforced concrete cross-section cost optimization: a plane frame application
A computational routine developed to optimize the first draft design of reinforced concrete buildings, approximated by plane frames. The commercial softwares used by the engineering offices for structural design is usually based in a first draft design, being this essential stage still accomplished by the engineer´s experience and intuition, using attempt a
Publicado em: 2006
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5. Analysis of Fungal Diversity in the Wheat Rhizosphere by Sequencing of Cloned PCR-Amplified Genes Encoding 18S rRNA and Temperature Gradient Gel Electrophoresis
Like bacteria, fungi play an important role in the soil ecosystem. As only a small fraction of the fungi present in soil can be cultured, conventional microbiological techniques yield only limited information on the composition and dynamics of fungal communities in soil. DNA-based methods do not depend on the culturability of microorganisms, and therefore th
American Society for Microbiology.