CARVALHO, Antonia Dalva França. A racionalidade pedagógica da ação dos formadores de professores: um estudo sobre a epistemologia da prática docente nos cursos de licenciatura da Universidade Federal do Piauí. 2007. 239f. Tese (Doutorado em Educação) – Universidade Federal do Ceará. Faculdade de Educação, Programa de Pós-Graduação em Educação Brasileira, Fortaleza-CE, 2007. / Submitted by Raul Oliveira (raulcmo@hotmail.com) on 2012-07-04T13:54:28Z No. of bitstreams: 1 2007_Tese_ADFCarvalho.pdf: 2465701 bytes, checksum: def158bb66447c5f410d47014a38976a (MD5) / Approved for entry into archive by Maria Josineide Góis(josineide@ufc.br) on 2012-07-20T14:46:54Z (GMT) No. of bitstreams: 1 2007_Tese_ADFCarvalho.pdf: 2465701 bytes, checksum: def158bb66447c5f410d47014a38976a (MD5) / Made available in DSpace on 2012-07-20T14:46:54Z (GMT). No. of bitstreams: 1 2007_Tese_ADFCarvalho.pdf: 2465701 bytes, checksum: def158bb66447c5f410d47014a38976a (MD5) Previous issue date: 2007 / The present Thesis is a result of an inquiry that has as object study the pedagogical rationality of the educators of professors of a public university. The objective was to identify the reasons where they base their actions, that is, the matrix of convictions regarding the school, the education, the students and the teaching which consolidate or identify a set of specific characteristics of their educational praxis. We are inserted, in this way, in the recent theoretical scope, called epistemology of the docent practice or the docent knowledge, whose purpose is to disclose the nature of the docent knowledge, and to understand how they are integrated concretely in the activities of the work, as well as the role they play in the process of work and professional identity. The approach is discursive; it deliberates the association of knowledge to the speeches and acts for which the professors are able to present reasons. The study had a qualitative approach of ethno-methodological character, for being characteristic of a deriving rationality of reflexive descriptions produced by the members of a community. The subjects of the study were the coordinators of the License Courses of a public university, located north-eastern of Brazil, in the city of Teresina-PI. The used instruments were the questionnaire and the half-structuralized interview whose analysis was carried through the help of the NUDI*ST. The research shows that the educator professor, in the perspective of the coordinators of the License courses, have a pedagogical rationality which confers an autonomy and control to direct educative practical in an ethical perspective. Being therefore, characterized as reflexive subject, epistemic, ethical and transformative. This rationality is configured for a new epistemology of the practical which has the reflection and the inquiry as motor of the learning of the work, shaped in canons of the practical-reflexive rationality with emancipated contours. The results could be used for the reflection on epistemology of the docent practice in superior education, collaborating with the magnifying of the own field of knowledge. Also it can serve to legitimize a pedagogical rationality of a specific context of formation of future professors, conferring validity and collaborating for the professionalism of the professors. In the same way, it increases the debate on the role of the University as an enterprising of an education based on a critic-emancipated pedagogical rationality. / A presente Tese resulta de uma investigação que tem por objeto a racionalidade pedagógica dos formadores de professores de uma universidade pública. O objetivo foi identificar as razões em que estes formadores fundamentam suas ações, isto é, a matriz de convicções a respeito da escola, do ensino, dos alunos e do trabalho docente, que consolidam ou identificam um conjunto de características específicas de sua práxis formativa. Insere-se, deste modo, no âmbito teórico recente, denominado epistemologia da prática docente ou saberes docentes, cuja finalidade é revelar a natureza dos saberes docentes, e compreender como estão integrados concretamente nas atividades do trabalho, assim como o papel que desempenham no processo de trabalho e identidade profissional. O enfoque é discursivo; delibera a associação de saberes aos discursos e atos para os quais os docentes são capazes de apresentar razões. O estudo teve abordagem qualitativa de caráter etnometodológico, por ser característico de uma racionalidade oriunda das descrições reflexivas produzidas pelos membros de uma comunidade. Os sujeitos foram os coordenadores dos Cursos de Licenciatura de uma universidade pública, localizada no Nordeste do Brasil, na cidade de Teresina-PI. Os instrumentos utilizados foram o questionário e a entrevista semi-estruturada cuja análise foi realizada com o auxilio do NUDI*ST. A pesquisa aponta que o professor formador, na perspectiva dos coordenadores dos cursos de Licenciatura, possui uma racionalidade pedagógica que lhe confere autonomia e controle para dirigir sua prática educativa em uma perspectiva ética. Sendo, portanto, caracterizado como sujeito reflexivo, epistêmico, ético e transformativo. Esta racionalidade apresenta-se configurada por uma nova epistemologia da prática que tem a reflexão e a investigação como motriz da aprendizagem do oficio, modelada nos cânones da racionalidade prático-reflexiva com contornos emancipatórios. Os resultados poderão ser usados para a reflexão sobre epistemologia da prática docente no ensino superior, colaborando com a ampliação do próprio campo de conhecimento. Também pode servir para legitimar uma racionalidade pedagógica dentro de um contexto específico de formação de futuros professores, conferindo-lhe uma validade e colaborando para a profissionalidade dos docentes. Da mesma forma, acresce o debate sobre o papel da Universidade como empreendedora de uma formação baseada em uma racionalidade pedagógica crítico-emancipatória.

Orientadores: Álvaro Penteado Crósta, Ana Maria Góes / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências / Made available in DSpace on 2018-08-21T05:13:12Z (GMT). No. of bitstreams: 1 Maziviero_MarianaVelcic_M.pdf: 11852522 bytes, checksum: da3a2bbea2799f9f4339b2eec4ce7dcf (MD5) Previous issue date: 2012 / Resumo: Atualmente são conhecidas em toda superfície terrestre cerca de 180 estruturas formadas por impacto de meteoritos. No Brasil, foram diagnosticadas seis estruturas originadas por este tipo de evento: Araguainha (MT-GO), Vargeão (SC), Vista Alegre (PR), Cerro do Jarau (RS), Serra da Cangalha (TO) e Riachão (MA). A área de estudos é a estrutura de impacto de Riachão (7º43'S/46º39'W), uma estrutura de impacto do tipo complexa, ligeiramente elíptica, em avançado estágio erosivo e com diâmetro de aproximadamente 4 km. Esta estrutura situa-se na porção centro-oeste da Bacia do Parnaíba, onde predominam arenitos e, subordinadamente, rochas carbonáticas intercaladas com siltitos pertencentes à parte superior do Grupo Balsas depositados entre o Pensilvaniano e Permiano. Estudos geológicos dessa estrutura foram realizados nas décadas de 1960 e 1980, resultando na caracterização geológica preliminar da mesma. Neste trabalho, a partir da integração de dados geológicos e de sensoriamento remoto, foi possível caracterizar geológica e geneticamente a estrutura de Riachão. As unidades litoestratigráficas identificadas correspondem a diferentes níveis da Formação Pedra de Fogo, e, possivelmente, da Formação Piauí, diferenciando-se daquelas estabelecidas nos estudos prévios. O modo de ocorrência destas unidades em superfície é compatível com o modelo de estruturas complexas, no qual o núcleo soerguido exibe camadas mais antigas, circundadas por camadas mais jovens. Em relação às evidências de deformação por impacto foram identificadas rochas intensamente deformadas no interior da estrutura, deformação essa compatível com a origem por impacto meteorítico. Microscopicamente, foram descritas feições deformacionais tais como lamelas de Böhm, healed fractures, feather features, fraturas planares (PF), grãos extremamente fraturados e feições de deformação planares (PDF). Destas, apenas esta última é evidência definitiva da gênese por impacto meteorítico, tendo sido identificada em Riachão pela primeira vez. Com base na interpretação dos lineamentos interpretados a partir das imagens de sensores remotos e limites morfoestruturais de Riachão, sugere-se que a estrutura se formou por um impacto oblíquo com sentido de noroeste para sudeste. O modelo semiquantitativo elaborado permitiu inferir que, após a formação da estrutura, cerca de 280 m de espessura de rochas foram removidos por erosão, o que explica a ocorrência reduzida de indicadores de deformação por choque e/ou a aparente ausência de brechas de impacto e estruturas do tipo shatter cone / Abstract: At the present, about 180 meteorite impact structures have been identified on Earth. In the Brazilian territory, six structures of impact origin are known so far: Araguainha (MT-GO), Vargeão (SC), Vista Alegre (PR), Cerro do Jarau (RS), Serra da Cangalha (TO) and Riachão (MA). In this study, we focused on Riachão impact structure. This crater is located in Maranhão State of northeastern Brazil (S7º42', W46º38'). This semi-circular complex structure has a diameter of 4.2 km, and is in advanced state of erosion. The region containing the Riachão crater is located in central-west portion of the Parnaíba Basin. The strata in the Riachão area are part of the depositional sequence of the Balsas Group deposited between the Pensylvanian and Permian. The first geological studies on Riachão were made in 1960's and 1980's. In this work, by means of integrating geological field observation, petrographic examination of rock samples, and remote sensing data, we achieved a detailed geological and genetic characterization of the structure. The identified lithostratigraphic units consist of different levels of the Pedra de Fogo Formation, and, possibly, the Piauí Formation. This characterization is different from the one previously proposed. The exposure of such geological units is in accordance with models of complex structures, since the lower unit (Piauí Formation) is exposed at the central uplift, surrounded by the younger strata of the Pedra de Fogo Formation. Regarding macroscopic evidences of impact, we identified highly deformed rocks within Riachão structure exhibiting microscopic deformation features such as böhm lamellae, healed fractures, feather features, planar fractures (PF), fragmented grains and planar deformation features (PDF) were observed. PDF is an unequivocal microscopic shock-diagnostic evidence and its occurrence in Riachão is reported here for the first time. The lineament patterns and morphologic characteristics of the structure point towards a possible oblique impact with the impactor striking from northwest to southeast. We estimated the amount of rocks removed by erosion in the Riachão structure to be about 280 m. The absence of the crater-fill impact breccias, shatter cones, as well as the restricted occurrence of microscopic shock effects, are interpreted as the result of intense and relatively deep erosion after the formation of the initial crater / Mestrado / Geologia e Recursos Naturais / Mestre em Geociências

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This thesis describes the design and subsequent implementation of a unit for traffic monitoring using Raspberry PI. First section provides a quick overview of assistance systems, which use a road lane detection techniques. Next there is a description of two diferent methods for road lane detection. Follow the description of monitoring scene. Then the work describe the practical part including the design and realization of supporting electronics, selecting of each components, including the modifying of cameras, mechanical design and creating of unit. Another section is about selection and installation of appropriate software components necessary for running of the unit and the selection of development tools for creating user application. After description of graphical user interafce, there is a description of road lanes detection algorithm. At the end of the thesis is summarized a reliability of unit in real traffic situation. At the appendix there are technical drawings, describing the unit.

I denna studie skall Java och C# ställas mot varandra och köras på en Raspberry Pi för att se vilken av dem som kan sortera heltalsvektorer snabbast. Som Java-motor kommer Hot-Spot att användas och Mono för C# och de ska sortera vektorer med sorteringsalgoritmer från språkens stödbibliotek och en implementerad algoritm baserad på urvalssortering. Detta arbete är till för att dem som vill arbeta med ett objektorienterat språk på Raspberry Pi, men inte har bestämt sig än för vilket som skall användas. Resultatet visar att Java presterar bättre än C# i de flesta fall och att det finns undantag då C# presterar bättre. / In this study, Java and C# is set against each other and running on a Raspberry Pi to see if they have similar processing times, or if there is a clear difference between the two languages. As Java-engine HotSpot will be used and Mono for C# and they will sort vectors with sorting algorithms from the language's support library and one implemented algorithm based on selection sort. This work is for those who want to work with an object-oriented language on Raspberry Pi, but has not decided yet on which one to choose. The result shows that Java performs better than C# in most cases, but in some cases C# is performing better.

Syftet med rapporten är att visa möjligheten att använda Raspberry Pi 2 i ett ansiktsigenkänningssystem. Studien redogör för prestandaskillnader mellan Eigenface och Fisherfacemetoden. Studieförfattarna har genomfört en experimentell studie enligt en kvantitativ metod där tester utgör empirin. Resultatet från testerna kommer presenteras genom diagram och påvisa möjligheten att använda Raspberry Pi 2 som hårdvara i ett ansiktsigenkänningssystem. Genom samma testutförande kommer skillnader mellan igenkänningsmetoderna att påvisas. Studien visar att Raspberry Pi 2 är en lämplig kandidat att använda för mindre ansiktsigenkänningssystem. Vidare framgår det att Fisherface-metoden är det lämpligaste valet att använda vid implementation av systemet. / The purpose with this report is to demonstrate the possibility to use Raspberry Pi 2 as hardware in a face recognition system. The study will show performance differences regarding the Eigenface- and Fisherface-method. To demonstrate the possibility the authors have done tests using an experimental study and quantitative method. To review the tests and to understand the result a qualitative literature review was taken. The tests will be presented as graphs to show the possibility to use Raspberry Pi 2 as hardware in a face recognition system. The same goes for the comparison of the chosen algorithms. The work indicates that Raspberry Pi 2 is a possible candidate to use for smaller face recognition systems. There is also an indication that the Fisherface method is the better choice for face recognition.

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Baigiamojo magistro darbo tiriamasis objektas – intelektinė tiesiaeigė elektros pavara. Tyrimo tikslas – ištirti tiesiaeigę elektros pavarą, valdoma neraiškiuoju reguliatoriumi. Uždaviniai – sudaryti intelektinės tiesiaeigės pavaros kompiuterinį modelį gauti ir ištirti imitacijos rezultatus, juos palyginti su tokia pačia PI reguliatoriumi valdoma pavara. Literatūros analizės dalyje išnagrinėtas neraiškiosios logikos panaudojimas valdant elektros pavaras. Pateikiami straipsniai, kuriose aprašomos elektros pavarų valdymo galimybės panaudojant neraiškiosios logikos reguliatorius. Teorinėje dalyje išnagrinėjamos tiesiaeigės pavaros, pateikiamos jų taikymo apžvalga ir panaudojimo galimybės. Taip pat išanalizuojamos neraiškiosios valdymo sistemos, jų sudarymo principai ir panaudojimas reguliatoriuose. Aptariami tiesiaeigių elektros pavarų valdymo būdai. Tiriamojoje dalyje sukurtas tiesiaeigės pavaros kompiuterinis modelis, suprojektuotas neraiškusis reguliatorius, gauti imitacijos rezultatai. Rezultatams palyginti sudarytas pavaros modelis naudojant PI reguliatorių. Gauti rezultatai ištirti ir palyginti. Išnagrinėjus tiesiaeigės asinchroninės pavaros imitavimo rezultatus pateikiamos išvados ir pasiūlymai. Darbą sudaro 7-ios dalys: įvadas, literatūros analizė, tyrimo tikslas ir uždaviniai, teorinė dalis, tiriamoji dalis, apibendrinančioji dalis, naudotos literatūros šaltinių sąrašas. Darbo apimtis – 65 psl. teksto be priedų, 43 iliustr., 2 lent., 37 bibliografiniai šaltiniai, iš jų... [toliau žr. visą tekstą] / Research subject of master thesis is intelligent linear electric drive. Objective of the study - to investigate linear electric actuator, controlled with Fuzzy controller. Tasks - create computer model of intellectual linear drive, to investigate the simulation results and compare them with the same drive which controlled with PI controller. In the literary analysis part usage of Fuzzy logic in the electric drives control has been examined. Articles with description of the electric drive control features using Fuzzy logic controller have been given. In the theoretical part the linear actuators are analyzed, the review of the application and their usability was given. Also are analyzed Fuzzy control systems, their creation principles and usage in the regulators. The linear electric drive control methods are discussed. In the research part computer model of the linear drive has developed, designed Fuzzy controller, analyzed simulation results. For results comparing the model with PI controller has designed. The results obtained are examined and compared. After examination results of the linear induction drive simulation the conclusions and recommendations are given. The work consists of seven parts: introduction, literature review, the study aims and objectives, the theoretical part, research, generalization and used references. Thesis volume - 65 pages text without appendixes, 43 pictures, 2 tables, 37 bibliographical sources, including internet links 10. Appendixes are... [to full text]

Examensarbetets syfte var att skapa ett generellt mät- och styrsystem som är möjligt att fjärrstyra över Internet. Systemet består av en kontrolldator och ett antal separata moduler, vilka var och en realiserar någon typ av mät- eller styrfunktion. Användningsområdet för ett sådant system är brett; det kan exempelvis användas inom automation av bostäder, för process-övervakning och styrning inom tillverkningsindustrin, eller inom under-hållningsbranschen.Eftersom ett fullt utbyggt system kan bestå av ett drygt 100-tal olika mo-duler, är det här examensarbetet av praktiska skäl begränsat till att rea-lisera en handfull av dessa. Då systemet är enkelt att skala upp, är den be-gränsningen i antalet realiserade moduler i prototypsystemet inget som påverkar de erhållna resultaten. Exempel på storheter som kan övervakas är temperatur, avstånd, lufttryck och ljusstyrka. Styrning kan ske av bland annat servomotorer, lampor och allmänna digitala utgångar.På kontrolldatorn körs en webbserver och styrning och avläsning av de anslutna modulerna sker från en ansluten webbklient. På webbservern finns även en webbkamera, vilken kan visa resultaten av de kommandon som ges från webbklienten.Resultaten från användningen av prototypsystemet visar att konstruk-tionerna fungerar och att systemets fördröjningar är relativt små. Att styra snabba realtidsförlopp är dock inte möjligt, men processer och system med blygsammare hastighetskrav är högst lämpade kandidater att styras och kontrolleras av detta system. / The purpose of this thesis work was to create a general measurement and control system, which is remotely controlled using Internet. The system comprises a controlling computer and several separate modules, each one realizing one or more measurement and control tasks. The possibilities of such a system are wide. It could be used for home automation, industrial process control or by the entertainment business. For example, the system can implement measurement of temperature, distance, pressure and light and control servos, lamps and general digital outputs.A fully implemented system comprises over 100 separate modules, so for practical reasons this thesis work was restricted to only implementing and demonstrating a few of those modules. Since the system is easily scalable, this was a minor restriction, which did not negatively affect the results.The results show that the system works and in general the latency is low. Fast real time processes will not work, but most applications with more moderate timing demands are ideally suited for this system.