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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Formação de reeditores ambientais a partir da metodologia da problematização : (re)unindo o lugar e o currículo

Santos, Luiz Ricardo Oliveira 31 August 2018 (has links)
Environmental Education (EE) is a broad process that brings to the discussion, from the perspective of the formation of critical, reflexive and participatory citizens, the impacts on the environment in its multiple dimensions, whether natural or social. However, when developed in the formal context, the EE can find limitations imposed by the follow-up of the reference matrix of instruments such as the National High School Examination (ENEM), which creates barriers to the discussion of socio-environmental problems on a local scale. This dissertation aimed to form environmental reeditors from the Methodology of Problematization with the Arch of Maguerez, aimed at the students of the Center of Excellence Dr. Milton Dortas, located in Simão Dias/SE, Northeast Brazil. The educational unit is located in the Caiçá River watershed, which has polluted waters when it enters the urban area, besides the visible environmental degradation of its surroundings, neglected by the public power in the creation of policies to mitigate the problem. The method of approach adopted in the study was the deductive one. As procedural instruments, Teaching Practices in Community (PEC) were carried out from the Problematization Methodology with the Maguerez arch, an active and innovative methodology that inserts the local reality into the educational routine. Initially, thirty students from the three high school grades of the referred college were selected, who participated in the PEC that occurred in extracurricular hours to their classes, on Saturdays, from January to June of 2018. First, the ENEM tests applied between the from the years 2012 to 2017, which proved the insufficient approach of local characteristics in their questions, directing the school curricula to the discussion of larger spatial scales and consequent omission of the place. In the development of the PEC, following the five steps of the Problematization Methodology with the Maguerez arch, students were able to observe, coexist and deepen studies based on a clipping of the reality of the community around the Caiçá River, with which they hypotheses to solve the socio-environmental problem and carried out educational and socio-political interventions. The active methodology used provided the training of environmental reeditors, as it related concepts and practices of citizenship, proactivity, sustainability and adapted the knowledge learned in a contextualized way. Likewise, the development of the PEC allowed the students to approach the community around the water body, to confront the socioenvironmental problems of the municipality and to participate in the initial discussion regarding the implementation of EE public policies for the municipality. / A Educação Ambiental (EA) é um amplo processo que traz à discussão, na ótica da formação de cidadãos críticos, reflexivos e participativos, os impactos sobre o ambiente em suas múltiplas dimensões, sejam elas naturais ou sociais. No entanto, quando desenvolvida no âmbito formal, a EA pode encontrar limitações impostas pelo seguimento da matriz de referência de instrumentos como o Exame Nacional do Ensino Médio (ENEM), que cria barreiras para a discussão dos problemas socioambientais em escala local. Esta dissertação teve por objetivo formar reeditores ambientais a partir da Metodologia da Problematização com o arco de Maguerez, voltada aos discentes do Centro de Excelência Dr. Milton Dortas, localizado em Simão Dias/SE. A unidade de ensino está localizada na microbacia do rio Caiçá, que tem suas águas poluídas quando adentra a zona urbana, além da visível degradação ambiental do seu entorno, negligenciada pelo poder público quanto à criação de políticas para mitigação do problema. O método de abordagem adotado no estudo foi o dedutivo. Como instrumentos procedimentais, foram realizadas Práticas de Ensino na Comunidade (PEC) a partir da Metodologia da Problematização com o arco de Maguerez, metodologia ativa e inovadora que insere a realidade local no cotidiano educacional. Inicialmente, foram selecionados trinta estudantes das três séries do Ensino Médio do referido colégio, que participaram das PEC que ocorreram em horário extracurricular às suas aulas, aos sábados, entre janeiro a junho de 2018. Primeiramente, foram analisadas as provas do ENEM aplicadas entre os anos de 2012 a 2017, que comprovaram a insuficiente abordagem de características locais em suas questões, direcionando os currículos escolares à discussão de escalas espaciais maiores e consequente omissão do lugar. No desenvolvimento das PEC, a partir do seguimento dos cinco passos da Metodologia da Problematização com o arco de Maguerez, os discentes puderam observar, conviver e aprofundar estudos a partir de um recorte da realidade da comunidade do entorno do rio Caiçá, com a qual levantaram hipóteses para solucionar a problemática socioambiental e realizaram intervenções de cunho educacional e sócio-político. A metodologia ativa utilizada proporcionou a formação de reeditores ambientais, pois relacionou conceitos e práticas de cidadania, proatividade, sustentabilidade e adaptou os conhecimentos apreendidos de forma contextualizada. Do mesmo modo, o desenvolvimento das PEC possibilitou a aproximação dos estudantes com a comunidade do entorno do corpo hídrico, o enfrentamento da problemática socioambiental do município e a participação na discussão inicial quanto à implantação de políticas públicas de EA para o município. / São Cristóvão, SE
92

Krematorium ve Žďáru nad Sázavou / Crematorium in Žďár nad Sázavou

Polnický, Vít January 2015 (has links)
The thesis deals with the design of the crematorium located in the municipal land registry of the city of Žďár nad Sázavou. The thesis contains design documentation, technical report, thermal technical appraisal, details of 2D technical field, fire technical report, structural analysis of reinforced concrete structure, heat recovery.The proposed project has two floors.The build-up area is 587 m2. The proposed project has green roof. The building is divided into three working parts.
93

Hydraulické posunovače / Hydraulic pullers

Kvasnica, Tomáš January 2009 (has links)
This Diploma thesis occupies with design of hydraulic puller. In work are mentioned possible types of construction. Choice construction of puller is disposed with parameters: maximum pushing force 50 kN, speed of piston rod 0,05 m/s. This work also contains FEM analysis by computer programme I-DEAS. The work also occupies with design of fluid drive.
94

Optimalizace tvaru háků v pecích petrochemického průmyslu / Optimalization of hanger design in petrochemical industry

Horsák, Libor January 2010 (has links)
Master’s thesis, „Optimization of hanger design in petrochemical industry heaters”, describes a procedure and means, leading to better hanger design in various cases. The thesis describes several problems which are necessary to be solved in hanger design. Technical expertise is executed on hangers of various designs. The procedure of optimization is shown on one chosen hanger design.
95

Zvýšení efektivity při svařování pecních konstrukcí / The effectiveness of welding on furnace structures.

Rousová, Michaela January 2010 (has links)
This diploma thesis is resolving all the possibilities of enhancing the efficiency of furnace structures welding. Small batch production does not offer many possibilities for implementing mechanization or automation. On the other hand, when using a big batch production, efficiency can be enhanced by means of a robotic workstation. When the production batch is big enough, we will see a costs save after a short time, mainly in labor costs. This means the return of investments will be in short time period. In the LAC company there are three types of products made. At laboratory furnaces the efficiency can be enhance by using fixtures. At other standard and atypical furnaces is very difficult to design fixtures or positioners because of their different sizes. Big complication can be also a company location on second floor. The most suitable product regarding to welding efficiency enhancement is big batch production of heaters. For this type the welding time can be shortened by means of a robotic workstation.
96

Predikce koroze trubek pece s využitím provozních dat / Prediction of furnace tubes corrosion using operating data

Kolomazník, Milan January 2014 (has links)
The thesis deals with the modeling and prediction of corrosion of radiation tube snake in the heating furnace. Specifically it is focused on vertical cylindrical furnace which is included in the catalytic hydrocracking unit and serves for heating aggressive circulation gas which is the cause of high temperature corrosion. An important basis for the creation of computational models are available records about the operation of the furnace and about the corrosion and degradation mechanisms during the lifetime of the tube system in furnace. Such information enables the creation of a computational model which is based on the prediction of high-temperature corrosive damage of radiation tube snake. The computational model involving all relevant factors may serve as the basis for a predictive life management system of radiation snakes in the heating furnace.
97

Zařízení pro zásyp odpichového otvoru obloukové pece / Device for filling tap hole of arc furnace

Juda, Lukáš January 2015 (has links)
Diploma thesis describes design and function verification of device for filling tap hole of electric arc furnace with tap hole diameter from 190 mm to 250 mm. The theses includes drive design calculation of chute swinging movement and bearing calculations. Another part of the thesis deals with verification of device functions which it is completed with process description of creating DEM simulation in program YADE. The thesis also includes basic experiments for determination angle of internal friction, angle of repose, coefficient of restitution and angle of material friction on a steel surface. Drawing documentation of selected assemblies is part of the thesis.
98

Analýza vad typu nekovových vměstků v odlitcích hlav motorů a návrh metod jejich odstranění / Analysis of non-metalic inclusions in motor heads castings and suggestion on their remove

Dratnal, Lukáš January 2016 (has links)
Improving the quality of metal castings for serial production of automotive industry, leading to improvements in the properties of casts and their lower costs. This publication analyzes the non-metallic inclusions contained in casts of heads of internal combustion engines, molded of Nemak Czech Republic, Ltd. Tackling includes analysis of size, shape, chemical composition and hardness of the specific non-metallic inclusions. The thesis describes the purity metal holding furnaces and proposals to eliminate inclusions from metal.
99

Aplikace VBA (Visual Basic for Application) a Maple na problémy procesního inženýrství / VBA and Maple application in process engineering problematics.

Farkač, Daniel January 2009 (has links)
The task of the diploma thesis named VBA and Maple Application on Process Engineering Problems is to show the possibilities of using these programming languages for various engineering tasks. Particularly the programming language Visual Basic for Application (VBA), which is a part of MS Office package, is very little used in practise. That´s why this thesis solves the complex task of a furnaces design process; the topic was reccomended by the supervisor prof. Ing. Josef Kohoutek, CSc. Specifically, the thesis deals with calculations of heat transfer and optimization of the height of extended surfaces of tubes in the convection section of process furnaces. The entire task is elaborated in VBA and runs in Excel. After entering the input information, the created program first calculates the size and heat output of the convection section, but it can also optimize the height of extended surfaces in different parts of the convection section and thus minimize investment costs.
100

"Eine vergleichende Genexpressionsanalyse von Gap- Junction- Strukturproteinen in oralen Plattenepithelkarzinomen und gesunder Schleimhaut" / A comparative gene expression study of gap-junction proteins in oral squamous cell carcinomas and normal mucosa

Brodmann, Tobias 23 April 2012 (has links)
No description available.

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