967 resultados para Moment of inertia
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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The dynamics of the rotation of a satellite is an old and classical problem, specially in the Euler formalism. However, with these variables, even in torque free motion problem, the integrability of the system is far from trivial, mainly when the three moments of the inertia are not equal. Another disadvantage occurs when the inclinations between some plans are null or close to zero, so the nodes become undetermined. In this work, we propose the use of modern Andoyer's variables. These are a set of canonical variables and therefore some significant advantages can be obtained when dealing with perturbation methods. On other the hand, the integrability of the torque free motion becomes very clear, as the system is reduced to a problem of one degree of freedom. The elimination of the singularities mentioned above, can be solved very easily, with Pincaré-type variables. In this work we give the background concepts of the Andoyer's variables and the disturbing potential is obtained for the rotational dynamics of a satellite perturbed by a planet. In the case when A = B (moments of inertia) and due to the current variables, the averaged system is trivially obtained through very simple integrations
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Pós-graduação em Medicina Veterinária - FCAV
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Pós-graduação em Ciência da Computação - IBILCE
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Enfermagem (mestrado profissional) - FMB
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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This work refers to a cut of my artistic creation path with some reflections on the subject other. Mail Art has been an alternative trend of art / avant-garde, where communication between artists networks is the goal to be achieved, therefore, from this statement, was approached some historical and particular aspects regarding the post and its contingencies in the art / forefront. Share this moment of academic completion with a postcard exhibition that will take place through the agency of other participating artists. To do so, were invited artists from the theme IDENTIFY UP to send work in postcard size with the exclusive use of the Post Office. The exhibition event will take place in the Gallery of the Art Institute. Participant of other similar projects, I believe I experienced a new role: who calls, organizes and rules.
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Nowadays, we live in a time of rapid research for technological advances, in a way that this pursuit of new technologies is deeply connected to the diversity of new materials that have been developed by mankind. It deals with issues such as materials with enhanced properties which offer better quality, less cost and high performance, while they are accessible both in their production and moment of operation. In this context, it was required to develop electrodes that were easy to prepare as well as which present high electric conductivity and good mechanic proprieties by using carbonaceous material as basis. For this reason, the best parameters of the furfuryl resin cures were established with different pH variations through viscosimetric measurements and differential scanning calorimetry. By scanning electron microscopy (SEM) was possible to identify an increased porosity in the samples with pH 7 and pH 8, as compared to samples with lower pH content. After carbonization of the material, the characterization of monolithic glassy carbon was held by means of FT-IR techniques, Raman spectroscopy, X-ray diffraction and cyclic voltammetry. The spectra showed that the change in pH does not have significant influence on the crystallographic ordering of the material and its structural characteristics. As for the electrochemical character, the CVM electrodes showed excellent response, with good reversibility and wide potential window. Some voltammetric curve deviations were only observed for the sample with pH 4, which may be related to processing parameters adopted
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To select pedagogical practices that allow the development of psychic function thinking and psychic function language. It's necessary understanding the whole psyche human, postulated by Vygotsky. The action of playing, the main activity of the children in the childhood education, can enhance the resilience of the psychic functions, once it provides stimulus and may include teacher's intervention during its deployment. For a better intervention, this planning in light of a theory is primordial, as well as the reflection on this practice. This research aimed to find the moment of the activities that took place the development of these functions, language and thought, in children who are in the early years of the childhood education. The survey was conducted through a qualitative interpretation approach, as action research. Data analysis allowed us to observe planned teaching practices in which enabled the development of language and thought and consequently a qualitative leap in the other psychic functions
Centralidades do lazer em Presidente Prudente: fluxos, tensões e territorialidades no Parque do Povo
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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This work refers to a cut of my artistic creation path with some reflections on the subject other. Mail Art has been an alternative trend of art / avant-garde, where communication between artists networks is the goal to be achieved, therefore, from this statement, was approached some historical and particular aspects regarding the post and its contingencies in the art / forefront. Share this moment of academic completion with a postcard exhibition that will take place through the agency of other participating artists. To do so, were invited artists from the theme IDENTIFY UP to send work in postcard size with the exclusive use of the Post Office. The exhibition event will take place in the Gallery of the Art Institute. Participant of other similar projects, I believe I experienced a new role: who calls, organizes and rules.
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Nowadays, we live in a time of rapid research for technological advances, in a way that this pursuit of new technologies is deeply connected to the diversity of new materials that have been developed by mankind. It deals with issues such as materials with enhanced properties which offer better quality, less cost and high performance, while they are accessible both in their production and moment of operation. In this context, it was required to develop electrodes that were easy to prepare as well as which present high electric conductivity and good mechanic proprieties by using carbonaceous material as basis. For this reason, the best parameters of the furfuryl resin cures were established with different pH variations through viscosimetric measurements and differential scanning calorimetry. By scanning electron microscopy (SEM) was possible to identify an increased porosity in the samples with pH 7 and pH 8, as compared to samples with lower pH content. After carbonization of the material, the characterization of monolithic glassy carbon was held by means of FT-IR techniques, Raman spectroscopy, X-ray diffraction and cyclic voltammetry. The spectra showed that the change in pH does not have significant influence on the crystallographic ordering of the material and its structural characteristics. As for the electrochemical character, the CVM electrodes showed excellent response, with good reversibility and wide potential window. Some voltammetric curve deviations were only observed for the sample with pH 4, which may be related to processing parameters adopted
Resumo:
To select pedagogical practices that allow the development of psychic function thinking and psychic function language. It's necessary understanding the whole psyche human, postulated by Vygotsky. The action of playing, the main activity of the children in the childhood education, can enhance the resilience of the psychic functions, once it provides stimulus and may include teacher's intervention during its deployment. For a better intervention, this planning in light of a theory is primordial, as well as the reflection on this practice. This research aimed to find the moment of the activities that took place the development of these functions, language and thought, in children who are in the early years of the childhood education. The survey was conducted through a qualitative interpretation approach, as action research. Data analysis allowed us to observe planned teaching practices in which enabled the development of language and thought and consequently a qualitative leap in the other psychic functions
Centralidades do lazer em Presidente Prudente: fluxos, tensões e territorialidades no Parque do Povo
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)