Submitted by Daniele Amaral (daniee_ni@hotmail.com) on 2016-09-28T18:04:41Z No. of bitstreams: 1 DissNMOP.pdf: 3401163 bytes, checksum: 41a840a075ebd243be24af257c9899fe (MD5) / Approved for entry into archive by Ronildo Prado (ronisp@ufscar.br) on 2016-10-04T18:46:39Z (GMT) No. of bitstreams: 1 DissNMOP.pdf: 3401163 bytes, checksum: 41a840a075ebd243be24af257c9899fe (MD5) / Approved for entry into archive by Ronildo Prado (ronisp@ufscar.br) on 2016-10-04T18:46:54Z (GMT) No. of bitstreams: 1 DissNMOP.pdf: 3401163 bytes, checksum: 41a840a075ebd243be24af257c9899fe (MD5) / Made available in DSpace on 2016-10-04T18:51:36Z (GMT). No. of bitstreams: 1 DissNMOP.pdf: 3401163 bytes, checksum: 41a840a075ebd243be24af257c9899fe (MD5) Previous issue date: 2016-03-17 / Não recebi financiamento / This present dissertation consists to propose alternative activities to the traditional teaching of matrices concept in the high school. At first it sought to identify difficulties from the students in solving problems which matrices concept were required. Subsequently, activities were proposed from routines in which employ the Scilab software in order to solve problems. Such activities followed the Didactic Engineering as a research methodology. The usage of computer in the classroom assists students learning in innovative and pleasant ways, besides enhancing interesting and performance of the group. The activities were used in a high school third grade classroom from public school network where the researcher has been working for over twenty-five years. / O presente trabalho consiste em propor atividades alternativas ao tradicional ensino do conceito de Matriz no Ensino Médio. Inicialmente buscou-se detectar as dificuldades que os alunos encontram ao resolver problemas que necessitam da compreensão do conceito de Matriz. Em seguida, foram propostas atividades a partir de rotinas, utilizando o ambiente Scilab para resolução dos exercícios. As atividades seguiram os passos da Engenharia Didática como metodologia de pesquisa. O uso de computadores em sala de aula auxilia a aprendizagem dos alunos de forma inovadora e mais prazerosa, aumentando o nível e interesse e desempenho da turma. As atividades foram aplicadas a alunos da terceira série do Ensino Médio de uma escola da Rede Pública Estadual na qual trabalha a pesquisadora há mais de vinte e cinco anos.

No / We consider Markov reliability models whose finite state space is partitioned into the set of up states View the MathML source and the set of down states View the MathML source. Given a collection of k disjoint time intervals I¿=[t¿,t¿+x¿], ¿=1,¿,k, the joint interval reliability is defined as the probability of the system being in View the MathML source for all time instances in I1union or logical sumcdots, three dots, centeredunion or logical sumIk. A closed form expression is derived here for the joint interval reliability for this class of models. The result is applied to power transmission lines in a two-state fluctuating environment. We use the Linux versions of the free packages Maxima and Scilab in our implementation for symbolic and numerical work, respectively.

Der Einsatz von Computern, zur unterstützenden Durchführung physikalischer Experimente, gewinnt immer mehr an Bedeutung. Computer, unter anderem auch Personal Computer (kurz PC), können durch ihre heutige Leistungsfähigkeit, immer mehr nützliche Funktionen während eines physikalischen Experimentes übernehmen. Diese Arbeit beschäftigt sich mit dem Vorbereiten eines solchen PC, welcher für die Umsetzung einer Regelschaltung für ein physikalisches Experiment genutzt werden kann. Dazu werden Gentoo-Linux, RTAI, Scilab/Scicos und Comedi verwendet. Besonderer Schwerpunkt der Arbeit ist dabei die Regelung in Echtzeit auszuführen. Im Verlauf der Arbeit werden Hardware- sowie Software-Ansprüche und deren Anpassungen besprochen, so dass alle Voraussetzungen des Experiment-PC, zur Umsetzung eines zuverlässigen Regelprozesses, erfüllt werden. Aus Gründen, welche in dieser Arbeit erläutert werden, wurde der Experiment-PC mit der Open-Source Linux-Distribution namens Gentoo ausgestattet. Zusätzlich verfügt der Experiment-PC über eine Mess- und Steuerkarte, welche es dem Experiment-PC erlaubt Signale aus dem Experiment aufzunehmen und eine entsprechende Regelung, durch die Ausgabe von Signalen, vorzunehmen.