Logical Operations
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Obstáculos à aprendizagem de conceitos algébricos no ensino fundamental: uma tentativa de aproximação entre os obstáculos epistemológicos e a teoria dos campos conceituais / Learning obstacles involved in the learning of algebraic concepts in elementary school: an attempt approach between epistemological obstacles and theory of conceptual fields.
The aim of this study is to examine obstacles and understand difficulties involved in the learning of Algebra in elementary school. The work consists in a review of the academic production and theoretical studies concerning the construction of the idea of obstacles, difficulties and errors in the learning of Mathematics in Brazil and overseas. The analyses o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/08/2012
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2. Information Management System: neurological disorders in non-cardiac chronics chagasic. / Sistema de gerenciamento da informação: alterações neurológicas em chagásicos crônicos não-cardíacos
This is the development of a computer information management system to support scientific studies about the nervous system of non-cardiac chronic chagasic patients. The goal is to develop the required system, by assumption of the convenience in the analysis of research results. The method used to develop this computer system, dedicated to information managem
Publicado em: 2010
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3. The impact of spatial data redundancy on SOLAP query performance
Geographic Data Warehouses (GDW) are one of the main technologies used in decision-making processes and spatial analysis, and the literature proposes several conceptual and logical data models for GDW. However, little effort has been focused on studying how spatial data redundancy affects SOLAP (Spatial On-Line Analytical Processing) query performance over G
Journal of the Brazilian Computer Society. Publicado em: 2009-06
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4. Development of strongly modulated pulses for quantum information processing via Nuclear Magnetic Resonance / Utilização de pulsos de radiofrequência fortemente modulados no processamento de informação quântica via ressonância magnética nuclear
This dissertation presents the development and use of radiofrequency pulses simultaneously modulated in frequency, amplitude and phase (Strongly Modulated Pulses, SMP) for creating initial states and executing logical operations used as building blocks for Quantum Information Processing via Nuclear Magnetic Resonance (NMR-QIP). The experimental implementatio
Publicado em: 2009
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5. Estudo das técnicas de obtenção de Hamiltonianos efetivos em Óptica Quântica
In the Quantum Optics area, the construction of effective hamiltonian is a matter of great importance, since from them we can generate and manipulate quantum states and logical operations. In this work we discuss 3 approximate methods for obtaining such effective hamiltonians: i) adiabatic elimination, ii) method of effective dynamics for oscillating hamilto
Publicado em: 2009
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6. Um sistema para detecção e reconhecimento de face em vídeo utilizando a transformada cosseno discreta
Human face has a very complex and variable pattern, which makes the face detection and recognition operations a challenging problem. The scope of these operations is quite comprehensive, involving mainly security applications, such as authorization for physical and logical access, people tracking, and real time authentication. In addition to security applica
Publicado em: 2009
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7. 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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8. The use of geo-technologies to evaluate the potentiality of hydro-degradation in superficial waters by agro-chemicals : case of Antas River watershed, Bueno Brandão, MG / Utilização de geotecnologias para a avaliação do potencial de degradação hidrica das aguas superficiais por agroquimicos : caso da sub-bacia do Rio das Antas, Bueno Brandão, MG
In the county of Bueno Brandão, South of MG, the Antas River Watershed is located before the water supply area and is susceptible to hydro-degradation due to the damaging agricultural activities-chemicals was evaluated by the use of geotechnologies. The potato cropping is a remarkable activity among them due to the following features: intensive use of agro-
Publicado em: 2008
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9. O regime jurídico do ICMS incidente sobre a prestação de serviços de transporte interestadual e intermunicipal na constituição federal de 1988
The objective of this thesis is to present the constitutional and judicial rationale of the hypothesis of incidence of the mandatory tax when it comes to transportation services as a result of the incidence of the intermunicipal and interstate tax of circulation of goods and transportation services mentioned on the article 155, II, of the 1998 Federal Consti
Publicado em: 2008
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10. Interatividade: da repetição à criação na organização do cognoscível
The inquietude of the adults and the speech of young revealing their allure for the navigation in the cyberspace, in detriment of the academic studies, they aroused interest in investigating this question that is defying the understanding of parents, professors and studious, and provoking a type of social unrest. Before this substantiation, it becomes vital
Publicado em: 2008
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11. In the plot of trauma: relations between the personality of women with breast cancer and the oncologic recurrence from a psychoanalytic psychosomatic view. / Na trama do trauma: relações entre a personalidade de mulheres acometidas por câncer de mama e a recidiva oncológica sob a ótica da psicossomática psicanalítica
The scientific community has become increasingly interested in the psychological aspects of breast cancer over the last two decades. Several studies on this issue suggest that patients personality can affect the course of the disease, but only a few address this issue specifically. The purpose of the present study was to compare dynamic aspects and structura
Publicado em: 2008
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12. Optimization of pipeline scheduling operations: efficient formulations and hydraulic considerations. / Otimização da programação de operações dutoviárias: formulações eficientes e considerações hidraúlicas.
Pipeline systems correspond nowadays to the most efficient mode for the transportation of large amounts of liquid and vapor products for long distances. Pipelines are utilized by the Petroleum Industry to transport petroleum and its product derivatives. The present work addresses the scheduling of pipeline distribution of a system that operates with a pipeli
Publicado em: 2007