Harmonic Analyses
Mostrando 13-24 de 30 artigos, teses e dissertações.
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13. MODELAGEM DO ELO DE CORRENTE CONTÍNUA PARA ANÁLISE HARMÔNICA UTILIZANDO O MÉTODO DE INJEÇÃO DE CORRENTES TRIFÁSICO HARMÔNICO COM SOLUÇÃO ITERATIVA
Esta Dissertação apresenta o desenvolvimento de uma nova ferramenta matemática para a análise de sistemas de corrente contínua integrados a sistemas de potência CA. A metodologia é fundamentada no domínio da frequência e é baseada nas equações de injeção de correntes e no fluxo de potência harmônico, estruturados numa programação esparsa e
Publicado em: 2009
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14. Palavra, harmonia e o platonismo ficiano na monodia dramatica da seconda pratica / Speech, harmony and ficinian platonism in the dramatic monodies of the seconda pratica
This research aimed to investigate the relationship between speech and harmony in the repertoire of dramatic monodies of the seconda pratica. After considering the alternative of applying the ethos doctrine associated to the modes and examining the implications of the concepts of pathos, mutatio, and hexachordum, it locates the importance of the platonic tho
Publicado em: 2009
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15. Intonational strategies in ensemble singing
The aim of the research was to find out about intonational strategies in the performance situation. The singing voice was chosen as the appropriate subject for experimental work, due to its superior capability to define pitch as compared to other musical instruments. Ensemble singing was also required, as harmonic context may be important in the clarificatio
Publicado em: 2009
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16. MÉTODOS APROXIMADOS DE SOLUÇÃO DE SISTEMAS DINÂMICOS NÃO-LINEARES / APPROXIMATE SOLUTION METHODS FOR NONLINEAR DYNAMICAL SYSTEMS
Nonlinear dynamical systems are rather common in engineering. This class of problems is usually solved by numerical integration or through the use of ap- proximate analytical methods (perturbation methods) or semi-analytical meth- ods such as the harmonic balance method. The numerical integration is a slow and cumbersome process in parametric analyses. The o
Publicado em: 2008
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17. Modeling and optimization of piezoelectric shunts apply to passive vibration control / Modelagem numérica e otimização de shunts piezelétricos aplicados ao controle passivo de vibrações
Due to the development of new technologies, industrial structures are now made of lighter materials and work at higher operation speeds producing an increasing vibration and noise level generation. As a result, different techniques of active and passive control have been developed and are continuously being improved. Among the passive control techniques, the
Publicado em: 2007
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18. Sete afluentes para Robert Lepage / Seven streams to Robert Lepage
This dissertation discusses the work of the Canadian director Robert Lepage. It proposes to reflect on his method of bringing specific elements to theater or cinema, creating, through the dialectics between them, a singular and hybrid poetics. A director herself, the dissertation.s author uses as a foundation her own creative process (in the play Ofélia em
Publicado em: 2007
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19. CONTRIBUTIONS TO STUDY OF WIND FARM CONNECTION TO THE UTILITY / CONTRIBUIÇÕES AO ESTUDO DE CONEXÃO DE GERAÇÃO EÓLICA À REDE ELÉTRICA
Distribution systems have not been designed to receive distributed generation (DG) units. The electric energy injection in these systems is safe and reliable if the characteristics regarding of DG interconnection in distribution power systems are considered: (i) Protection; (ii) Stability; (iii) Electric energy market; (iv) Quality of energy. In this work, a
Publicado em: 2007
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20. Controle interno da administração interno da Administração pública : uma perspectiva do modelo de gestão administrativa
The current study analyses the Internal Control System of the Public Administration under a perspective of the administrative management pattern. The State administrative structure, focusing the Social State conception, has been receiving, as time goes by, some conceptual inclusions that, far from distancing its providential character , add to its content an
Publicado em: 2007
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21. A unified discrete-time approach to the state space representation of aeroelastic systems.
In complex flow situations, it is common to use numerical tools to evaluate the aerodynamic unsteady behavior. The present work presents an alternate formulation for the state space representation of aeroelastic systems based on digital control theory that is shown to be effective and accurate for the coupling of numerical solutions with such systems. The ap
Publicado em: 2007
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22. Environmental perception: analysis of hydrographic basin of Monjolinho river, São Carlos, SP / Percepção ambiental: uma análise na bacia hidrográfica do rio Monjolinho, São Carlos, SP
In the last decades, many researches have been made about Monjolinhos basin, in which it became evident mans bad influence on its water, soil, flora and wildlife as a whole. This study aims to analyze the environment perception of the rural an urban population living around Monjolinho river, by making a series of questions in order to identify the main e
Publicado em: 2006
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23. Do EBITDA ao EVA: analise dos indicadores da mensuracao economica; e os reflexos na empresa quando utilizados como base da remuneracao variavel
The main objective of this dissertation is to analyses criteriously EVA, also, check whether it gives support for the pré requisites used as basis for variable remuneration. In addition to that the study will be directed when EVA is specifically used as tool of financing management as well as the stockholders become to re-think how to use the organizations
Publicado em: 2006
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24. Análises do desempenho térmico de transformadores alimentando cargas não lineares / Analyses of the thermal acting of transformers supplying loads non lineal
This dissertation presents and analyzes the results of theoretical investigations and experimental of the thermal behavior of transformers the dry, isolated with resin epoxy, under conditions sinusoidal and non sinusoidal of tension and current. Development a study of the losses in the several parts of the transformer, standing out the losses for currents pa
Publicado em: 2005