Maps Algebra
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Digital Soil Mapping Using Machine Learning Algorithms in a Tropical Mountainous Area
ABSTRACT: Increasingly, applications of machine learning techniques for digital soil mapping (DSM) are being used for different soil mapping purposes. Considering the variety of models available, it is important to know their performance in relation to soil data and environmental variables involved in soil mapping. This paper investigated the performance of
Rev. Bras. Ciênc. Solo. Publicado em: 14/11/2018
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2. Equigeodésicas e aplicações equiharmômnicas em variedades flag generalizadas / Equigeodesics and equiharmonic maps on generalized flag manifolds
O principal objetivo deste trabalho é o estudo de aplicações harmônicas em variedades flag generalizadas. Na primeira parte do trabalho, consideramos aplicações cujo domínio é uma superfície de Riemann. Provamos que toda aplicação holomorfa-horizontal na variedade flag é uma aplicação equiharmônica (ie, harmônica com respeito a cada métrica
Publicado em: 2011
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3. C*-algebras, approximately proper equivalence relations and thermodynamic formalism
We introduce a non-commutative generalization of the notion of (approximately proper) equivalence relations and propose the construction of a ‘quotient space’. We then consider certain one-parameter groups of automorphisms of the resulting C*-algebra and prove the existence of KMS states at every temperature. In a model originating from thermodynamicswe
Publicado em: 2011
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4. Using linear algebra for protein structural comparison and classification
In this article, we describe a novel methodology to extract semantic characteristics from protein structures using linear algebra in order to compose structural signature vectors which may be used efficiently to compare and classify protein structures into fold families. These signatures are built from the pattern of hydrophobic intrachain interactions using
Genetics and Molecular Biology. Publicado em: 2009
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5. Utilização de dados orbitais na implementação do modelo da estabilidade dos solos / Use of orbital data on a soil stability model
Determinar as áreas mais suscetíveis a erosão, tendo como subsídio um modelo da estabilidade dos solos (MES) alternativo à Universal Soil Loss Equation (USLE), proporcionando o zoneamento ambiental da área de estudos, foi o objetivo deste trabalho. Para a implementação do modelo foram utilizados dados de aptidão dos solos, declividade e vegetação,
Publicado em: 2009
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6. Utilização de sistemas de informação geográfica na identificação de áreas vulneráveis à contaminação do lençol freático : o caso da bacia do alto e médio curso do rio Uberabinha - MG
Due to the necessity of finding an efficient way of management for the water resources, the drainage basin has been proposed as the basic unity for its planning and management. As mentioned, it has been chosen the basin portion of the Uberabinha River situated in the city of Uberlandia as the area to be studied. As the drainage basin of the Uberabinha River
Publicado em: 2009
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7. DIAGNÓSTICO DA QUALIDADE AMBIENTAL EM BACIA HIDROGRÁFICA URBANA Estudo de caso A sub-bacia do Arroio Cadena Santa Maria RS / DIAGNOSIS OF ENVIRONMENTAL QUALITY IN URBAN HIDROGRAPHIC BASIN Case study Arroio Cadena sub-basin - Santa Maria - RS
Through this study, we aimed at reflecting upon the environmental diagnosis of an urban hydrographic basin. The theoretical approach has been based on the technique of pressure-state-impact-response (PEIR) in order to obtain quality rates through physical, environmental and socioeconomic characteristics of the Arroio Cadena sub-basin located in Santa Maria,
Publicado em: 2009
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8. Combinational digital circuit in multi-valued logic / Circuitos digitais combinacionais na lógica de múltiplos valores
The combinational digital circuits are designed in binary logic known as Switching Algebra, and depending of the complexity have limitations, some of them are consumption of energy and the size of the circuits generated by the number of interconnections, one alternative to solve this problem is the use of Multilevel Logic also known as Multi-valued Logic (MV
Publicado em: 2008
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9. O caráter de Chern-Connes para C*-sistemas dinâmicos calculado em algumas álgebras de operadores pseudodiferenciais / The C*-dynamical system Chern-Connes character computed in some pseudodifferential operators algebras
Given a C$^*$-dynamical system $(A, G, \alpha)$ one defines a homomorphism, called the Chern-Connes character, that take an element in $K_0(A) \oplus K_1(A)$, the K-theory groups of the C$^*$-algebra $A$, and maps it into $H_{\mathbb}^*(G)$, the real deRham cohomology ring of $G$. We explictly compute this homomorphism for the examples $(\overline{\Psi_^0(S^
Publicado em: 2008
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10. Subvariedades isoparamétricas do espaço Euclidiano / Isoparametric submanifolds of Euclidian space
The goal of this dissertation is to present an introduction to the study of isoparametric submanifolds of Euclidean space. We begin with an introduction to the history of the subject. Then we present the basic results of submanifold theory of space forms. We compute the fundamental equations of first and second order, and we prove the fundamental theorem of
Publicado em: 2008
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11. Mapa de suscetibilidade a deslizamentos da regiÃo metropolitana de Recife
The use of Remote Sensing and Geographical Information Systems (SIG) tools constitute alternative technologies of decreasing cost along the last decade, allowing planners of all government spheres in the process of more appropriate and efficiently planning the use of the soil and of the environment protection. The evaluation and the spatialization of the nat
Publicado em: 2007
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12. AnÃlise e simulaÃÃo do processo de transformaÃÃo de chuva em vazÃo com suporte de Sistema de InformaÃÃes GeogrÃficas (SIG)
A pesquisa teve com principal foco utilizar as tecnologias dos Sistemas de InformaÃÃes GeogrÃficas (SIG) para analisar e simular o processo de transformaÃÃo de chuva em vazÃo. Para tanto foi estabelecida uma metodologia para implementaÃÃo de um SIG que simula a transformaÃÃo de chuva em vazÃo, baseada nos modelos hidrolÃgicos distribuÃdos e no c
Publicado em: 2006