Made available in DSpace on 2016-04-27T16:57:45Z (GMT). No. of bitstreams: 1 EDM - Carlos Roberto da Silva.pdf: 4174831 bytes, checksum: 1d38259ebfb2955961be336c2a3a1d23 (MD5) Previous issue date: 2006-10-16 / Secretaria da Educação do Estado de São Paulo / This research has as objective verify if in a computer science environment allows to the student to recognize some curves properties through representations and graphical interpretations in dynamic way with the use of parameters for one comprehension better of its equations. We verified that the articulating between the points of view cartesian and parametric and the conversions among some registers of semiotic representation it makes the student think about the correlation that exists between some properties geometric of the plane curves and its cartesian or parametric equations. For this research we elaborate a didactic sequence based on some topics of the Didactic Engineering and we apply during five sessions in a group of 10 students taking the third year of high school. We verified that the graphic constructions of some plane curves varying the real values of its parameters in its equations for the development of an GIF (Graphic Information Format), they allow the students to observe the geometric effect caused by this variation what it favors the understanding of the parameter notion in analytical geometry / Esta dissertação tem por objetivo verificar se um ambiente informático permite ao aluno reconhecer algumas propriedades de curvas, por meio de representações e interpretações gráficas de maneira dinâmica, com o uso de parâmetros, para uma melhor compreensão de suas equações. Identificamos que a articulação entre os pontos de vista cartesiano e paramétrico e as conversões entre alguns registros de representação semiótica possibilitam ao aluno refletir sobre a correlação entre algumas propriedades geométricas de curvas planas e suas equações cartesianas ou paramétricas. Para esta pesquisa, elaboramos uma seqüência didática com base em alguns elementos de uma Engenharia Didática e aplicamos durante cinco sessões a um grupo de 10 alunos da 3ª série do Ensino Médio. Verificamos que as construções gráficas de algumas curvas planas, variando os valores reais de parâmetros em suas equações, para o desenvolvimento de um GIF animado, permitem ao aluno observarem os efeitos geométricos provocados pela sua variação, favorecendo o entendimento da noção de parâmetro na geometria analítica

Submitted by Alysson Azevedo (roberto.alysson@yahoo.com.br) on 2018-10-25T15:46:55Z No. of bitstreams: 4 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação de Mestrado Acadêmico - PPGECIM - Alysson R. G. Azevedo.pdf: 3901802 bytes, checksum: 04179bf3f945016d7df4d3d191fb4df1 (MD5) Carta Encaminhamento Autodepósito.pdf: 236115 bytes, checksum: b7925c5a8a96b94e07f7af193785c687 (MD5) Ata de defesa.pdf: 850633 bytes, checksum: edd2b9c833389128a60311e87a05c3da (MD5) / Rejected by PPGECIM Ensino de Ciências e Matemática (ppgecim@ufam.edu.br), reason: Olá Alysson, boa tarde A dissertação em PDF precisa está com a assinatura dos membros da banca de defesa on 2018-10-25T18:59:22Z (GMT) / Rejected by PPGECIM Ensino de Ciências e Matemática (ppgecim@ufam.edu.br), reason: Olá Alysson, boa tarde A dissertação em PDF precisa está com a assinatura dos membros da banca de defesa on 2018-10-25T18:59:22Z (GMT) / Rejected by PPGECIM Ensino de Ciências e Matemática (ppgecim@ufam.edu.br), reason: Olá Alysson, boa tarde A dissertação em PDF precisa está com a assinatura dos membros da banca de defesa on 2018-10-25T18:59:18Z (GMT) / Rejected by PPGECIM Ensino de Ciências e Matemática (ppgecim@ufam.edu.br), reason: Olá Alysson, boa tarde A dissertação em PDF precisa está com a assinatura dos membros da banca de defesa on 2018-10-25T18:59:12Z (GMT) / Submitted by Alysson Azevedo (roberto.alysson@yahoo.com.br) on 2018-10-26T14:51:28Z No. of bitstreams: 4 Carta Encaminhamento Autodepósito.pdf: 236115 bytes, checksum: b7925c5a8a96b94e07f7af193785c687 (MD5) Ata de defesa.pdf: 850633 bytes, checksum: edd2b9c833389128a60311e87a05c3da (MD5) Dissertação de Mestrado Acadêmico - PPGECIM - Alysson R. G. Azevedo..pdf: 3636150 bytes, checksum: 4882d45771c5bbce4d8b48aa3dd73ded (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Rejected by PPGECIM Ensino de Ciências e Matemática (ppgecim@ufam.edu.br), reason: Informo que você não precisa incluir a Ata de Defesa sendo somente necessário anexar : - Carta de Autodepósito; - Dissertação em PDF; on 2018-10-26T19:04:22Z (GMT) / Rejected by PPGECIM Ensino de Ciências e Matemática (ppgecim@ufam.edu.br), reason: Informo que você não precisa incluir a Ata de Defesa sendo somente necessário anexar : - Carta de Autodepósito; - Dissertação em PDF; on 2018-10-26T19:04:18Z (GMT) / Submitted by Alysson Azevedo (roberto.alysson@yahoo.com.br) on 2018-10-28T14:15:56Z No. of bitstreams: 3 Carta Encaminhamento Autodepósito.pdf: 236115 bytes, checksum: b7925c5a8a96b94e07f7af193785c687 (MD5) Dissertação de Mestrado Acadêmico - PPGECIM - Alysson R. G. Azevedo..pdf: 3636150 bytes, checksum: 4882d45771c5bbce4d8b48aa3dd73ded (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by PPGECIM Ensino de Ciências e Matemática (ppgecim@ufam.edu.br) on 2018-10-29T18:28:10Z (GMT) No. of bitstreams: 3 Carta Encaminhamento Autodepósito.pdf: 236115 bytes, checksum: b7925c5a8a96b94e07f7af193785c687 (MD5) Dissertação de Mestrado Acadêmico - PPGECIM - Alysson R. G. Azevedo..pdf: 3636150 bytes, checksum: 4882d45771c5bbce4d8b48aa3dd73ded (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by PPGECIM Ensino de Ciências e Matemática (ppgecim@ufam.edu.br) on 2018-10-29T18:28:16Z (GMT) No. of bitstreams: 3 Carta Encaminhamento Autodepósito.pdf: 236115 bytes, checksum: b7925c5a8a96b94e07f7af193785c687 (MD5) Dissertação de Mestrado Acadêmico - PPGECIM - Alysson R. G. Azevedo..pdf: 3636150 bytes, checksum: 4882d45771c5bbce4d8b48aa3dd73ded (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2018-10-29T19:45:22Z (GMT) No. of bitstreams: 3 Carta Encaminhamento Autodepósito.pdf: 236115 bytes, checksum: b7925c5a8a96b94e07f7af193785c687 (MD5) Dissertação de Mestrado Acadêmico - PPGECIM - Alysson R. G. Azevedo..pdf: 3636150 bytes, checksum: 4882d45771c5bbce4d8b48aa3dd73ded (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-10-29T19:45:22Z (GMT). No. of bitstreams: 3 Carta Encaminhamento Autodepósito.pdf: 236115 bytes, checksum: b7925c5a8a96b94e07f7af193785c687 (MD5) Dissertação de Mestrado Acadêmico - PPGECIM - Alysson R. G. Azevedo..pdf: 3636150 bytes, checksum: 4882d45771c5bbce4d8b48aa3dd73ded (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-06-26 / This work presents as the subject of the research guide: "How does the coordination of different registries contribute to the process of teaching and learning of topics of Analytical Geometry, especially Point, Line and Circumference in High School, from a sequence didactics in which constructions are proposed with the aid of software GeoGebra? ". For this, a sequence of activities with the use of GeoGebra software. However, it should be noted that this work does not summarize to a didactic sequence only. The main objective of this research is to analyze how the coordination of different records of semiotic celebration are made by the clients during the process of teaching and learning of concepts of Analytical Geometry in Teaching Middle, starting from a didactic sequence with the use of GeoGebra. The research by a differentiated and dynamic practice with the intention of improving the quality of the teaching-learning process was the main motivation the difficulties presented by the students. The interest in dealing with this subject is based on the low incomes of students found in large-scale assessments and in school assessments applied, in addition to finding the difficulties presented by these students in the process of converting records related to the topic addressed. Such activities were planned, implemented and evaluated. Based on the Theory of Semiotic Representation Registers by Raymond Duval. The didactic experience was carried out with 18 students from the 3rd year of the High School of a school of the state network of the municipality of Manaus, AM. The methodological course of this work was developed based on the stages of the didactic engineering methodology idealized by Michele Artigue. The analysis of the results that were obtained after the application of the Following the activities, it was verified that when using GeoGebra software, made possible a better understanding and interpretation of the Analytical Geometry in High School representing a methodology important in the teaching-learning process of Mathematics. / Este trabalho apresenta como questão norteadora de pesquisa: “De que maneira a coordenação de diferentes registros contribui para o processo de ensino e aprendizagem de tópicos da Geometria Analítica, especialmente Ponto, Reta e Circunferência no Ensino Médio, a partir de uma sequência didática em que são propostas construções com o auxílio do software GeoGebra?”. Para esta constatação foi desenvolvida uma sequência de atividades com o uso do software GeoGebra. No entanto, convém destacar que este trabalho não se resume a uma sequência didática somente. O principal objetivo desta pesquisa é analisar como a coordenação de diferentes registros de representação semiótica são utilizados pelos estudantes durante o processo de ensino e aprendizagem de conceitos de Geometria Analítica no Ensino Médio, a partir de uma sequência didática com o uso do GeoGebra. A investigação por uma prática diferenciada e dinâmica com o intuito de melhorar a qualidade do processo de ensino-aprendizagem, foi a principal motivação deste estudo diante das inúmeras dificuldades apresentadas pelos estudantes. O interesse em tratar deste assunto, baseia-se nos baixos rendimentos dos alunos constatados em avaliações em larga escala e nas avaliações escolares aplicadas, além da constatação das dificuldades apresentadas pelos alunos no processo de conversão de registros relacionados ao tema abordado. Tais atividades foram planejadas, implementadas e avaliadas a partir dos subsídios teóricos fundamentados pela Teoria dos Registros de Representação Semiótica de Raymond Duval. A experiência didática foi realizada com 18 alunos do 3º ano do Ensino Médio de uma escola da rede estadual do município de Manaus, AM. O percurso metodológico deste trabalho foi desenvolvido com base nas etapas da metodologia da engenharia didática idealizada por Michèle Artigue. A partir da análise dos resultados que foram obtidos após a aplicação da sequência das atividades, constatou-se que ao utilizar o software GeoGebra, possibilitou uma melhor compreensão e interpretação dos conceitos de Geometria Analítica no Ensino Médio a partir dos registros de representação semiótica envolvidos, demonstrando-se uma proposta eficiente no processo de ensino-aprendizagem de Matemática.

This project deals with the issue of simulation of dose irradiation. This principle is used in a radiotherapeutic device known as a Leksell Gamma Knife for the treatment of intracranial tumours. With regard to the theoretical observations obtained by studying this device, the project suggests the use of analytical geometry for the creation of a mathematical model for calculation of the intensity in the rayed area. A demonstration program Leksell_xvecer08 has been created for this model in a MatLab software background, which enables the user to change various input arguments and simulate a picture of the dosage spread in the target scanned areas.

Modern-day terrorist attacks present a considerable danger for commercial aircrafts. This thesis analyzes potential methods of such attacks with a critical analysis of the most dangerous type: an attack from the outside of the aircraft via a fragmentation missile warhead. Such missiles cause damage to the airframe of the aircraft through fragments created by the explosion. In this thesis, analytical geometry is used to determine the area of the aircraft affected by the fragmentation. The aircraft’s geometry and the fragments’ dispersion are calculated by analytical functions, and the effect of the damage is analyzed. A shooting experiment was also carried out, in which fragments were shot at a reinforced skin panel that was manufactured according to the real design of commercial aircraft. The results of the experiment revealed that only directly hit sections of the structure are damaged. Data obtained by the experiment was then used for the creation and improvement of the model used in the simulation by means of the finite element method. This model is used for the numerical calculation of the damage sustained. Further included in the thesis is an analysis of the change in the load-bearing capacity after such an attack. The relationship between the size of the damage and its effect on the load-bearing capacity of the component as well as the entire structure is defined. First, the effect of component damage is analyzed via the FMEA/FMECA methods. This analysis is then extended using fuzzy logic. Fuzzy logic analysis is based on the determination of the size of the damaged component area and the component’s importance on the structure’s carry loads. Application of the defined approach is described for several parts of an aircraft’s life cycle, including development, operation after the terrorist attack, and assessment of causes after a crash caused by a fragmentation missile warhead.

The diploma thesis deals with metric tasks in space, using synthetic and analytical geometry. In addition to explaining the different approaches, there is a set of examples to practice. The solution of the examples is part of the Portal of High School Mathematics (Portál středoškolské matematiky), where we can and analytical solutions, synthetic numerical solutions and synthetic constructional solutions.