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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.
31

Vodojemy - Brno, Žlutý kopec / Reservoirs - Brno, Zluty kopec (Yellow hill)

Mokrášová, Nina Unknown Date (has links)
The planning area is situated on the border of historical city of Brno and the district of Stránice in the close vicinity of the important transport hub Vaňkovo square. It spreads between two main streets - Tomešová and Tvrého. The main dominant of this location is a built-up area of The Hospital. The uniqueness of this place is also related to the city’s historical centre, the view of the Špilberk Castle and at the same time the historical uniqueness hidden underground of the plot. Therefore, the aim of the work is to increase the attractiveness of the area and pleasant environment for inhabitants of the city regarding to the surrounding buildings. Also to open up magnificant spaces of historical water reservoirs to the public and thus increase the social level and attendance of this locality.
32

Posouzení stavu malých vodních nádrží z hlediska jejich krajinných funkcí. / Assessment of the condition of small water reservoirs in terms of landscape functions.

RUČ, Karel January 2013 (has links)
This thesis is focused on evaluation of landscape functions of small water reservoirs. The aim is to analyze their basic parameters. For this purpose a realized project of the whole range of water reservoirs with special focus on revitalization was chosen. The source materials and the field research contributed to the final evaluation of the analysis of the water reservoirs condition before and after their completion. The basic data and revitalizing arrangements were identified according to the chosen indicators and criteria. Prevailing functions of the water reservoirs are derived from these indicators and criteria.
33

Desenvolvimento de software como ferramenta de confiabilidade para a análise da água subterrânea do IPEN / Software development as a tool for reliability analysis of groundwater of IPEN

SILVA, RENAN de A. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:35:03Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:41Z (GMT). No. of bitstreams: 0 / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
34

Determinacao de mercurio tital e organico e avaliacao dos processos de metilacao e desmetilacao em sedimentos do reservatorio Rio Grande, Estado de Sao Paulo / Determination of total organic mercury and evaluation of methylation and demethylation processes in sediments of the Rio Grande reservoir, State of Sao Paulo

FRANKLIN, ROBSON L. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:28:00Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:28Z (GMT). No. of bitstreams: 0 / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
35

Desenvolvimento de software como ferramenta de confiabilidade para a análise da água subterrânea do IPEN / Software development as a tool for reliability analysis of groundwater of IPEN

SILVA, RENAN de A. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:35:03Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:41Z (GMT). No. of bitstreams: 0 / Neste estudo foi proposto o desenvolvimento de um software para automatizar o processo de estimativa da incerteza de medição pelo método descrito no Guia EURACHEM. Com a finalidade de testar a eficácia do software, foi desenvolvido um procedimento analítico para a determinação de compostos fenólicos na água subterrânea do Instituto de Pesquisas Energéticas e Nucleares a fim de se obter dados reais de um processo. Para tanto, a determinação dos compostos foi realizada por cromatografia gasosa acoplada ao detector de espectrometria de massas, GC/MS. Para garantir a qualidade dos dados gerados, o procedimento analítico foi submetido ao processo de validação, onde foram avaliados os parâmetros: seletividade/especificidade, faixa de trabalho e faixa linear de trabalho, linearidade, limite de detecção, limite de quantificação, precisão, exatidão, recuperação e robustez. A estimativa da incerteza da medição foi realizada pelo software desenvolvido e manualmente, confirmando que o mesmo é adequado para o processo. Além disso, o software foi testado utilizando dados da literatura, o que confirmou sua eficácia. Os resultados da análise da água subterrânea demonstraram que não há a presença de compostos fenólicos nos níveis estudados. A utilização de sistemas automatizados para a estimativa da incerteza diminui ou minimiza erros sistemáticos e permite trabalhar com mais organização e controle do processo. / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
36

Determinacao de mercurio tital e organico e avaliacao dos processos de metilacao e desmetilacao em sedimentos do reservatorio Rio Grande, Estado de Sao Paulo / Determination of total organic mercury and evaluation of methylation and demethylation processes in sediments of the Rio Grande reservoir, State of Sao Paulo

FRANKLIN, ROBSON L. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:28:00Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:28Z (GMT). No. of bitstreams: 0 / O Reservatório Rio Grande, localizado na Região Metropolitana de São Paulo (RMSP), é um importante manancial de abastecimento de água dessa região. Foram analisadas amostras de água de fundo e de sedimentos coletadas nesse reservatório em 4 pontos, em 4 campanhas, de setembro de 2008 a janeiro de 2010, sendo estas quantificadas em relação à concentração de Hg total pela técnica de CV AAS. Em seguida, adaptou-se uma metodologia da literatura para quantificação de Hg orgânico em sedimentos, que consistiu na extração dos compostos organomercuriais com diclorometano em meio ácido e, posterior destruição dos compostos orgânicos com cloreto de bromo. A validação dessa metodologia, em termos de precisão e exatidão, foi realizada por meio da análise dos materiais de referência BCR CRM 580 e IAEA 405. Para avaliação dos mecanismos de metilação e desmetilação de Hg nesse ambiente, foram determinados os seguintes parâmetros físicos e químicos, in situ: pH, temperatura da água, potencial redox (EH), transparência e profundidade. Nos sedimentos foram determinados também a granulometria, carbono orgânico total, bactérias redutoras de sulfato, N total e P total, além de Co, Cu, Fe e Mn. A seleção destes parâmetros esteve relacionada diretamente a fatores que influenciam o comportamento do MeHg em sedimentos e sua zona de transição. Foram encontradas concentrações para Hg total variando entre 1,0 e 71,0 mg kg- 1 e de Hg orgânico entre <10,0 a 47,2 &mu;g kg-1 e taxas de metilação entre 0,06 e 1,4% em sedimentos, ao longo do reservatório. Discutiram-se também as diferentes condições de metilação e suas influências, ao longo do reservatório. Como estudo suplementar, avaliou-se a concentração de outros metais e elementos traço presentes nos sedimentos, por meio da técnica de ativação neutrônica. Foram quantificados os elementos As, Ba, Br, Co, Cr, Cs, Hf, Fe, Na, Rb, Sb, Sc, Zn e os elementos terras raras Ce, Eu, La, Lu, Nd, Sm, Tb e Yb. Os fatores de enriquecimento calculados em relação aos valores da crosta terrestre utilizando-se Sc como elemento normalizador apresentaram valores acima de 2,0 para os elementos As, Br, Sb, U e Zn. Verificou-se uma forte influência antrópica para alguns dos elementos analisados, principalmente nos pontos localizados na entrada do reservatório, que recebem descarga de efluentes domésticos e industriais dos rios que alimentam o reservatório. / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
37

Zaniklé malé vodní nádrže v Krkonoších: co by přinesla jejich obnova? / Small water reservoirs in the Krkonoše Mountains: What would their regeneration bring?

Šádková, Eva January 2020 (has links)
This thesis deals with the evaluation of influence of small water reservoirs on the extreme runoff events (floods and drought) in the upper Úpa River basin. It summarizes knowledge about both hydrological extremes and their manifestations in the basin of interest as well as about small water reservoirs in the sense of water retention measures and their possible importance during the periods of low flows or floods. In this thesis two localities of possible reservoirs at place of former splash dams in Obří důl and on the Lysečinský Brook were chosen. To assess the influence of small water reservoirs on runoff during two chosen flood events and two periods of drought, the hydrological model HEC-HMS was applied. The results of model simulation proved a positive influence of reservoirs on the reduction of flood peaks (except for a concurrence of transformed flood waves in the outlet that occurred during one flood event), but the effect was decreasing with the increasing catchment area and the intensity of precipitation and with smaller storage capacity of a reservoir. During the low flows, a positive influence of reservoirs was observed as well, relating to the release of stored water. However, the ability of a reservoir to reduce deficit volume and to balance the flow was decreasing with smaller...
38

Vodojemy - Brno, Žlutý kopec / Reservoirs - Brno, Zluty kopec (Yellow hill)

Gilar, Tomáš Unknown Date (has links)
The subject of this diploma thesis is an architectural project of a new solution of the Brno underground reservoirs on Žlutý kopec. The plot is located near the historic center of Brno. The result is a complete design of a leisure and educational site, which offers new functions of a museum, library, gallery and dining hall in redesigned underground reservoirs built between 1872 and 1920.
39

Vodojemy - Brno, Žlutý kopec / Reservoirs - Brno, Zluty kopec (Yellow hill)

Menšíková, Kateřina Unknown Date (has links)
Master’s thesis focuses on area of historic water reservoirs on Yellow Hill, situated between streets of Tomešova and Tvrdého. They continued to supply Brno with non-potable water until 1997 and TIC is currently looking for a new way to make water reservoirs accesable and more interesting to the general public. Due to the existence of underground reservoirs the site has remained undeveloped and is covered with dense greenery. Thanks to that, the character of the place is in the context of the surrounding build-up area very unique. The proposal not only respects that, but seeks to support it. The whole area is undergoing through new landscape design and is completed by three single-storey pavilions, which with their various functions ensure the operation of the site. The historic buildings that were used to manage the underground reservoirs are renovated and integrated into the operation of the site. An important part of the design is also the solution of barrier-free access to reservoirs, their interconnection and installation of optical device - the Camery Obscury in the oldest of the reservoirs. The whole place becomes more accesible and attractive for visitors.
40

Vliv malých vodních nádrží na výskyt extrémních odtokových epizod v povodí horní Otavy / Impact of small water reservoirs on the occurrence of extreme runoff episodes in the upper Otava River basin

Šmrhová, Zuzana January 2014 (has links)
The main objective of this thesis is to prove the influence of small water reservoirs on the extreme runoff situations in a watershed of upper Otava River. The system of small water reservoirs represents an effective part of flood protection, which can be realized without greater changes of landscape. The research part of this thesis includes a summary of knowledge about rainfall-runoff process, small water reservoirs and hydrological modeling. The work is applied to model watershed of Roklanský creek, which is situated in a central part of Šumava Mountains. There are a few rain gauges and laser sensors situated in this watershed, whose are needed for the modeling process. The thesis contains a selection of appropriate data and methods for a creation of digital model of terrain. This digital model of terrain is used for creation of most of the parameters, whose are used for modeling of rainfall- runoff process. This modeling is done in hydrological modeling program HEC - HMS (Hydrologic Engineering Center - Hydrologic Modeling System). HEC - HMS is one of the most used simulation programs. The main part of the thesis is a simulation of rainfall-runoff process, applied to two real rainfall-runoff episodes. Next important part of the thesis is a comparison of this simulation with and without...

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