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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.
161

Návrh a vybudování sítě bodů podrobného polohového bodového pole metodou geodetickou a GPS v povodí Jenínského potoka / Design and Development of the Network of Points of the Detailed Minor Horizontal Control by the Geodetic nad GPS Methods in the Basin of the Jeninsky Stream

HOFMANOVÁ, Lucie January 2010 (has links)
This Graduation Thesis was elaborated on the following topic: ``Design and Development of the Network of Points of the Detailed Minor Horizontal Control (``DMHC{\crq}q) by the Geodetic and GPS Methods in the Basin of the Jeninsky Stream{\crq}q. The goal of the Thesis was to reconnoitre the part of the basin of the Jeninsky Stream, analyze current level of the minor control in this locality, amend current horizontal minor control in the density for detailed large-scale mapping and locate minor control by the geodetic and GPS methods. The given locality was reconnoitred based on the map basis and geodetic data. Afterwards, I carried out monumentation of new points of the DMHC and then their positional determination by the geodetic and GPS methods. The network of 16 points of the DMHC was created, for this Graduation Thesis was used 8 of them. The electronic total station Leica TCR 407 power was used for the determination by the geodetic method and Trimble 4600LS device was used for the GPS method.
162

Vytyčení vlastnických hranic lesních pozemků v rámci řešení komplexní pozemkové úpravy. / The delineation of boundaries of wood lands as a part of complex land adaptation.

JÁKLOVÁ, Hana January 2008 (has links)
This thesis was elaborated on the topic: The delineation of boundaries of wood lands in cadastral area Vrcov in the region of České Budějovice as a part of complex land adaptation. The aim was to delineate and to measure the ground control and consequently set out the boundaries of the lots. Fallowing the technical and map bases the reconnaissance of the terrain and the ground control was done. The ground control was completed by 127 secondary measuring points using the GPS method and the method of area survey net. The main part of the thesis describes the process of the delineation. For the measuring in terrain there was used the electronic total station Leica TC 1103 and the polar method. The last part is about checking of the precision of measurement, elaboration of the setting out sketch and the process of the transfer to the owners of lots.
163

Polohová a výšková detekce části vodního toku Ostřice v k.ú. Horní Planá. / Planimetry and altitude detection in the part of the stream Ostřice in the cadastral region Horní Planá.

KOHOUT, Jaromír January 2009 (has links)
This thesis is focused on using selected geodetic methods for tracing a part of the river Ostřice, located in cadastral area of Horní Planá, district Český Krumlov. The objective of this work is to identify, demarcate and trace a file of fixed points setting river polygonal traverse and their further usage as a base for determining the stream longitudinal section. The theoretical part contains information about the minor control and geodetic activities done within it and related to this thesis. The practical part consists of service area{\crq}s characteristic, procedures description and elaboration of results including their graphic exemplification.
164

Vybudování výukového výškového a polohového bodového pole. / Creating 3D training network.

ŠOUREK, Martin January 2009 (has links)
Graduation theses is called Creating 3D Training Network. The thesis is divided into two main parts. The first part is theoretical and speaks about the creating of new 3D network and its surveying. Considering thesis{\crq}s size the theory is worked up factual for needfulness of that thesis. The theoretical knowledge were extract from accessible literature. The other part is practical. At this part I described the methodology of single works along with used machines and summary of calculations and outcomes of surveying. Concrete records of calculations, topography of new created points, overview of new created training network etc. are parts of appendices. The practical knowledge were obtained from literature, my knowledge and above all from the conslutations with the graduation theses{\crq}s supervisor. Graduation theses is aimed to creating of new 3D training network intended for education of Geodesy 1 and Geodesy 2 of branch Land Adjustment and Real Estate Trade.
165

Desenvolvimento de um sistema de controle para suspensões ativas de elevadores de alto desempenho / Development of a controller for an active suspension system for high performance elevators

Rivas López, Santiago Miguel January 2007 (has links)
O presente trabalho aborda o desenvolvimento de um algoritmo de controle para um sistema de suspensão ativa para elevadores de alto desempenho. Esses dispositivos são muito usados no caso de suspensões veículos automotivos, mas não tanto em elevadores. Visando compreender os fenômenos envolvidos e executar testes do controle proposto através de simulações, é realizado um estudo da modelagem matemática desse sistema. O elevador estudado é de cabine com duplo andar (double-deck) e será usado em uma guia de 200 [m] de curso em um edifício de aproximadamente 500 [m] de altura. A velocidade de estado estacionário do elevador é 40 km/h. Buscando situar este trabalho no campo de pesquisa proposto, é apresentada uma introdução aos critérios e técnicas de controle linear utilizadas. O desenvolvimento do controlador é baseado no uso de um modelo matemático linear em espaço de estados que representa a dinâmica do sistema em um dos planos ortogonais. A síntese do controlador por realimentação no espaço de estados foi feita usando o método da alocação de pólos, com ajuda do regulador quadrático linear, realimentando os estados com um observador de ordem total. Um modelo computacional foi construído e utilizado para a realização de simulações computacionais com o controlador proposto. Os resultados de simulações do sistema passivo e ativo são apresentados e discutidos. / The present work proposes the development of an algorithm to control active suspension systems for high performance elevators. These devices are used in suspensions for automotive vehicles, but not in such a way in elevators. Aiming at the understanding of the involved phenomena and making tests of the controller considered through simulations, a mathematical model of this system is developed. The studied elevator is a double-deck one and will be used in a 200 [m] guide in an approximately 500 [m] height skyscraper. The steady state speed of the elevator is 40 km/h. Trying to contextualize this work, it is presented an introduction to the criteria and techniques of linear control applied in this work. The development of the controller is based on the use of a linear mathematical model in the states space that represents the dynamics of the system in one of the two orthogonals planes. The synthesis of the feedback controller in the states space was made using the pole placement method with the aid of the linear quadratic regulator, and the feedback of the states with a full order observer. A computational model was constructed. The results of passive and active simulations of the system are presented and discussed.
166

O pólo Manaus e o desequilíbrio intra-regional na Amazônia ocidental : o caso de Roraima

Cruz, Getúlio Alberto de Souza January 2009 (has links)
Esta dissertação tem por objetivo investigar os fatores condicionantes do processo de desenvolvimento de Roraima. Transformado de Território Federal em Estado membro da federação brasileira pela Constituição de 1988, Roraima está num ponto de inflexão de sua história, e especialmente do modelo de economia que deu base à sobrevivência de sua população até agora. A conhecida, localmente, economia do contracheque “chapa branca” deu bons resultados até o início dos anos 90 da década passada. De lá para cá demonstra claros sinais de exaustão, afinal, o estado está perdendo posição relativa no ranking brasileiro. Isso pode ser medido tanto pelo indicador de produção material, o PIB per capita quanto pelo IDH-M, adotado mundialmente como melhor medidor do nível de desenvolvimento de uma população. Assim, o estado de Roraima tem de enfrentar o desafio de mudar o modelo econômico que lhe deu até aqui sustentação, e isso terá de ocorrer sob um cenário de restrição ao uso de seu capital natural imposto pelo Estado nacional, e a partir dos liames econômicos que ligam o Pólo Secundário Roraima ao Pólo Econômico Manaus. Isso condiciona o desenvolvimento do primeiro em relação ao segundo. Do ponto de vista do desenvolvimento sub-regional, Roraima vem crescendo num ritmo mais lento que os demais estados da Amazônia Ocidental. O desempenho do Produto Interno Bruto per capita e o Índice de Desenvolvimento Humano Municipal (IDH-M), medido entre os anos de 1991 (ano de implantação do estado) e 2005 (dados obtidos junto ao IBGE/PNDU), além dos dois condicionantes já referidos, indicam que a indução de qualquer processo de mudança em Roraima, passa necessariamente pela intervenção do estado local, que não dispõe de recursos orçamentários para fazê-lo, e não detém o controle das políticas mineral, ambiental, indígena, fundiária e creditícia, todas enfeixadas nas mãos do Estado nacional. Em conclusão, qualquer possibilidade de desenvolvimento de Roraima, passa pela negociação de um pacto republicano com o Estado nacional. / This dissertation aims to investigate the conditioning factors of the development process of Roraima. Changed from Federal Territory in the State member of the Brazilian federation by the Constitution of 1988, Roraima is in a point of inflection of its history, and especially the model of economy which was based on the survival of its people so far. The known, locally, the economy "white hat" proof of income has yielded good results until the early 90s of the last decade. From then until now shows clear signs of exhaustion, after all, the state is losing relative position in the Brazilian ranking. This can be measured both by the indicator of material production, GDP per capita as the HDI-M, used worldwide as a better gauge the level of development of a population. Thus, the state of Roraima has to face the challenge of changing the economic model which has hitherto support, and this must occur under a scenario of restricting the use of its natural capital tax by the national State, and from economic links that linking the Secondary Pole at Roraima to Economic Pole at Manaus. It influences the development of the first in the second one. From a sub-regional development point of view, Roraima is growing in a slower pace than the other states of the Western Amazon. The performance of the Gross Domestic Product per capita and the Municipal Human Development Index (IDH_M), measured between the years 1991 (year of implementation of the state) and 2005 (data obtained from the IBGE / PNDU), besides the above two conditions, the induction of any process of change in Roraima, inevitably by the intervention of the state site, which has no budgetary resources to do so and has no control of the mineral, environmental, indigenous, land and credit policies. Each bottle in the hands of the national state. In conclusion, any possibility of development in Roraima is to negotiate a pact with the Republican National State.
167

Contribuição do SISCOM na investigação do blurring do polo temporal associado à atrofia hipocampal em pacientes com epilepsia do lobo temporal: um estudo com SPECT cerebral / Contribution of SISCOM in the investigation of temporal pole blurring in patients with temporal lobe rpilepsy and hippocampal atrophy: a brain SPECT study

Daniele Kanashiro Sonvenso 04 March 2016 (has links)
Este foi um estudo retrospectivo de 18 pacientes com atrofia hipocampal (AH) e 21 pacientes com AH associada ao blurring do polo temporal (BPT), nos quais realizamos a investigação das alterações perfusionais ao SPECT (Single Photon Emission Computed Tomography) crítico, ao SPECT intercrítico e ao SISCOM (Subtraction Ictal SPECT Coregistered to MRI) e sua comparação com os dados de avaliação pré-cirúrgica. Os pacientes com BPT apresentaram início mais precoce da epilepsia, uma duração de epilepsia maior e um período maior de seguimento pós-operatório (PO). O padrão pefusional ipsilateral ao SPECT crítico, o qual denominamos de padrão -típico?, foi o padrão perfusional mais frequentemente encontrado em ambos os grupos de pacientes com e sem BPT. Ao SPECT intercrítico, a maioria dos pacientes com BPT apresentaram hipoperfusão ipsilateral no lobo temporal (LT) epileptogênico, enquanto que no grupo sem BPT esta hipoperfusão foi observada em metade dos pacientes. Ao SISCOM, o padrão perfusional -típico? foi novamente o mais encontrado em ambos os grupos com e sem BPT. Entretanto, os padrões considerados -atípicos? foram encontrados mais frequentemente nos pacientes com BPT, o que nos sugere um padrão de propagação das crises epilépticas discretamente diferente neste grupo com BPT, o qual envolve outras áreas dos LT bilateralmente. Contrariamente à nossa hipótese inicial, não encontramos associação entre a presença de BPT e a presença de hiperperfusão no polo temporal (PoT) seja ao SPECT crítico ou ao SISCOM. Por este achado, nossos dados não suportam a idéia de que o BPT seja resultado de alterações teciduais intercríticas secundárias a um maior envolvimento ou participação deste polo na geração ou propagação de crises epilépticas na epilepsia do lobo temporal (ELT) mesial. Por outro lado, nossos resultados sugerem que o PoT é uma região frequentemente envolvida pelas crises do LT. Particularmente, a hiperperfusão no PoT ipsilateral à AH ao SISCOM foi mais encontrada nos pacientes com casos clínicos típicos de ELT mesial, sugerindo que o PoT é mais frequentemente envolvido (um padrão típico) em crises epilépticas em casos clínicos com informações mais concordantes (clear cut) e sugestivas de ELT mesial unilateral / This was a retrospective study of 18 patients with hippocampal atrophy (HA) and 21 patients with HA associated to temporopolar blurring (TPB). We performed an investigation of perfusion changes of ictal single photon emission computed tomography (SPECT), interictal SPECT and subtraction ictal SPECT coregistered to magnetic resonance imaging (SISCOM) and its comparison with results of presurgical evaluation. Patients with TPB showed earlier epilepsy onset, longer duration of epilepsy and a longer period of post surgical follow-up. The ipsilateral perfusion pattern in the ictal SPECT, which we denominated -typical? pattern, was the most frequent in both groups of patients, with and wihout TPB. In the interictal SPECT, most of patients with TPB showed ipsilateral hypoperfusion to the epileptogenic temporal pole (TP), while in the group without TPB this hypoperfusion was observed in half of the patients. Through SISCOM, the typical perfusion pattern was the most frequent in both groups. However, the patterns considered -atypical? were found more frequently in patients with TPB, which suggests a pattern of propagation of epileptic seizures slightly different in the group with TPB, which involves other areas of TL bilaterally. Adversely to our hypothesis, we did not found association between the occurrence of TPB and the hyperperfusion in the TP neither in the ictal SPECT nor SISCOM. Based on this finding, our data does not support the idea that the BTP is a result of interictal secondary tissue changes due to a higher involvement or role of this pole in the generation or propagation of epileptic seizures in the mesial temporal lobe epilepsy (TLE). On the other hand, our results suggest that the TP is a region frequently involved by seizures of TL. Particularly, the hyperperfusion in the TP which is ipsilateral to the HA through SISCOM was the most found in patients with typical clinical cases of mesial TLE, suggesting that the TP is frequently involved (a typical pattern) in epileptic seizures of clinical cases with more concordant information (clearcut) and suggestive of unilateral mesial TLE
168

Pegada ecológica: um estudo aproximativo para aplicabilidade nas indústrias do pólo industrial de Manaus (PIM)

Barros, Márcio Vinicius Araújo de 03 April 2014 (has links)
Made available in DSpace on 2015-04-11T13:54:21Z (GMT). No. of bitstreams: 1 Marcio Vinicius Araujo de Barros.pdf: 731911 bytes, checksum: b61b095a3beaa688bd8f0b1051e63b65 (MD5) Previous issue date: 2014-04-03 / Fundação de Amparo à Pesquisa do Estado do Amazonas / This dissertation aimed to apply the indicators of Ecological Footprint to measure the current state of the art company studied the Industrial Pole of Manaus. For this, there was a comprehensive review of existing methodologies for adaptation on a smaller scale .Then the consumption variables necessary for the calculation of the Ecological Footprint in Corporate Environment were identified .It was used at first exploratory research and approach the second moment of theoretical and descriptive research by collecting primary data within an enterprise PIM . The literature for composition of a theoretical and documentary research for access to secondary data required for calculation of the indicators were also used .Data collection was conducted through a questionnaire , with explanatory text at the beginning , which was answered by those responsible for the requested data. The quantitative method is related to the use of quantification of variables ,use of formulas for the calculation of indicators and statistical techniques to ensure accurate results . As a result of the research, it was found that the Ecological Footprint Company ( -894.62 gha ) is within the standards set nationally ( 2.9 gha ) and that may encourage more consumption of fish instead of beef . It is relevant attention to the sustainability of our green areas, because of the 44 hectares of the Urban Zone of Manaus, 28 000 have been deforested. / A presente dissertação teve por objetivo aplicar os indicadores da Pegada Ecológica para mensurar o estado da arte atual da empresa em estudo do Polo Industrial de Manaus. Para isto, foi feita uma ampla revisão das metodologias existentes para adaptação em uma escala menor. Em seguida foram identificadas as variáveis de consumo necessárias para o cálculo da Pegada Ecológica no Ambiente Corporativo. Utilizou-se em um primeiro momento uma pesquisa exploratória e no segundo momento a abordagem de pesquisa teórico-descritiva através da coleta de dados primários dentro de uma empresa do PIM. Também foram utilizadas a pesquisa bibliográfica para composição do referencial teórico e a pesquisa documental para acesso aos dados secundários necessários para os cálculos dos indicadores. A coleta de dados foi realizada através de um questionário, com um texto explicativo no início, que foi respondido pelo responsável pelos dados solicitados. O método quantitativo está relacionado ao emprego da quantificação de variáveis, uso de fórmulas para o cálculo dos indicadores e técnicas estatísticas para garantir a precisão dos resultados. Como resultado da pesquisa, verificou-se que a Pegada Ecológica da Empresa (-894,62 gha) está dentro dos níveis estabelecidos nacionalmente (2,9 gha) e que se pode incentivar mais o consumo de peixe em substituição à carne bovina. É relevante a atenção para a sustentabilidade de nossas áreas verdes, pois dos 44 mil hectares da Zona Urbana de Manaus, 28 mil já foram desmatados.
169

Prospecção de plantas fitorremediadoras em solos contaminados por metais pesados

Silva, José Felício da 30 November 2012 (has links)
Made available in DSpace on 2015-04-20T12:31:17Z (GMT). No. of bitstreams: 1 jose felicio.pdf: 2154157 bytes, checksum: 92f1a3fbff21731380d6fdf59ce09e91 (MD5) Previous issue date: 2012-11-30 / Phytoremediation uses plants for remediating soils and aquatic system contaminated by inorganic and organic substances. Their results are satisfactory and demonstrate that certain plant species having high genetic potential for removing, degrading, metabolizing or immobilizing a lot of contaminants, such as heavy metal, petroleum, domestic and industrial sewage, etc. Despite promising the phytoremediation has been find problems in discover new plants with the ability for remediating contaminated environments. This study purpose a survey prospective for identifying plants into Manaus Industrial Pole (MIP) region that can accumulate high contents of heavy metals. The following species: Vismia guianensis (Aubl.) Choise, Diplasia karataefolia, Vismia japurensis Annona, Alibertia edulis A. Rich, Poaceae (Capim colonião), Lantana camara L., Araceae and Diffenbachia picta Schott were collected in three forest patches near streams of the MIP. The choiced plants were supported on the remarkable contamination that the streams have been submitted. Soil samples of forest patch were also collected and their physical and chemical proprieties determined by EMBRAPA methodologies. The Plants leaves were separated, digested by concentrated HNO3 at 60 oC, and the contents of Cu, Fe, Zn, Cd, Mn, Pb, Co and Ni determined by flame atomic absorption spectrometry. Findings show that all studied plants are capables of uptake high contents of heavy metals. As a result we can affirm that Vismia guianensis (Aubl.) Choise, Diplasia karataefolia, Vismia japurensis Annona, Alibertia edulis A. Rich, Poaceae (Capim colonião), Lantana camara L., Araceae and Diffenbachia picta Schott are potentially phytoremediators. / A Fitorremediação utiliza plantas para remediar solos e sistemas aquáticos contaminados por substâncias orgânicas e inorgânicas. Seus resultados são satisfatórios e demonstram que certas espécies de plantas com alto potencial genético podem remover, degradar, metabolizar ou imobilizar uma série de contaminantes, como metais pesados, petróleo, esgoto doméstico e industrial, etc. Apesar de promissora a fitorremediação tem encontrado problemas em descobrir novas plantas com capacidade para remediação de ambientes contaminados. O propósito deste estudo prospectivo é a identificação de plantas na região do Pólo Industrial de Manaus (PIM), que possam acumular altos teores de metais pesados. As seguintes espécies: Vismia guianensis (Aubl.) Choise, Diplasia karataefolia, Vismia japurensis, Annona, Alibertia edulis A. Rich, Poaceae (Capim colonião), Lantana camara L., Araceae e Diffenbachia picta Schott, foram coletadas em três fragmentos florestais, nas margens de igarapés do PIM. As plantas escolhidas foram submetidas a elevados níveis de contaminação provenientes da poluição dos igarapés. Amostras de solo dos fragmentos florestais foram coletadas e suas propriedades físicas e químicas determinadas por metodologias da EMBRAPA. As folhas de plantas foram separadas, digeridas com HNO3 concentrado a 60 ° C, e o conteúdo de Zn, Fe, Mn, Cu, Co, Cd, Pb e Ni, determinado por espectrometria de absorção atómica. Os resultados mostram que todas as plantas estudadas são capazes absorverem níveis elevados de metais pesados em suas folhas. Como resultado, podemos afirmar que Vismia guianensis (Aubl.) Choise, Diplasia karataefolia, Vismia japurensis, Annona, Alibertia edulis A. Rich, Poaceae (Capim colonião), Lantana camara L., Araceae e Diffenbachia picta Schott são potencialmente fitorremediadoras.
170

Optimalizace sběrného výfukového potrubí Škoda 1,2 MPI / Optimalization of Exhaust Manifold for Škoda 1,2 MPI

Kubiš, Milan January 2015 (has links)
The subject of this diploma thesis is optimalization of exhaust manifold of ŠKODA 1,2 MPI engine with respect for the plastic deformation at heat stress. The first part is focused on general description of converter module, whose component the exhaust manifold is. In the next part of the thesis is computation of a heat load of the exhaust manifold. The last part is devoted to the seal analysis of the whole converter module of a ŠKODA three-cylinder engine.

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