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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.
1

Lattice potential energies and theoretical applications

Roobottom, Helen Kay January 2000 (has links)
No description available.
2

Vliv hydrologických a provozních nejistot na komplexní vodohospodářské řešení údolní nádrže / Impact of Hydrologic and Operational Uncertainties on Complex Water Management Analysis of Open Water Reservoir

Havlík, Martin January 2018 (has links)
Theme of the work is a water management analysis of the Hanušovice reservoir on the river Morava/Krupá. In the framework will be make to calculating of the active capacity and retention capacity thinking reservoir. Software HYDROG and UNCE_RESERVOIR will be used, which calculating analysis reservoir. Target of the work is analysis impact uncertainties to active and retention capacity of reservoir, which is conduction on actually hydrologic conditions in river basin a actual lay requisition national company Povodí Moravy.
3

Vodohospodářské řešení zásobního objemu nádrže v podmínkách změny klimatu / Water Management Analysis of Reservoir Storage Capacity Under Climate Change

Smolík, Lukáš January 2020 (has links)
The thesis is processed from several partial steps. The first step is to calibrate and validate the hydrological model using real meteorological and hydrological data using the balance hydrological model in Runoff Prophet. Furthermore, using the corresponding statistical downscaling in the LARS WG program. Create climatological data sets considering climate change. Hydrological transformation of climatological data by hydrological model to compile sets of hydrological series for Vlára river basin. Recalculate the hydrological data to the body of the dam for the tributary of the Vlára River, including water transfers from the basins of the Sviborka and Smolinka streams. The last step of the work is to analyze the storage volume and its respective improved water outflow from the tank and to assess the impact of climate change on the storage volume of the tank.
4

Utredning och analys av en vattenreservoars utformning och dimensioneringsprocess / Assessment and analysis of a water reservoir’s design and process for dimensioning

Andersson, Sandra, Bengtsson, Linn January 2018 (has links)
Arbetet innefattar en undersökning kring vattenreservoarer där magasinsvolymer och konstruktionslösningar utreds samt analyseras. I nuläget saknas tydliga riktlinjer för hur reservoarer i mindre samhällen ska utformas och dimensioneras för att säkerställa vattenkvalitén och uppnå en säker vattenförsörjning. Målet och syftet med arbetet är att ta fram en magasinsvolym, identifiera viktiga aspekter att ta hänsyn till vid utformning av en reservoar samt presentera fördelar med och behovet av en vattenreservoar utifrån förbrukningsvariationer. Arbetet avgränsas till Lammhults förutsättningar där intervjuer, observationer, litteraturstudier, analyser och beräkningar ligger till grund för teori och resultat. Resultatet påvisar bland annat svårigheter i att analysera förbrukningsvariationer, vikten av lokal korrekt statistik och ifrågasättande av befintligt dimensioneringssätt för magasinsvolym. Arbetet kartlägger delvis vissa problemområden men vidare studier krävs för att fastställa lösningar inom områdena. Genom detta kan tydliga riktlinjer för att dimensionera och utforma en reservoar tas fram. / The essay contains an assessment of water reservoirs, where an examination and analysis of storage volumes and construction solutions are carried out. Today there are no clear guidelines for how reservoirs in smaller communities should be designed and dimensioned to ensure water quality and guarantee a safe water supply. The goal and purpose of the essay is to calculate a storage volume, identify important aspects to consider in designing a reservoir, and present advantages with and the need of a water reservoir based on consumption variations. The assessment is limited to Lammhults’s conditions where interviews, observations, literature studies, analyses and calculations serve as a foundation for the theory and the result. The result demonstrates, among other things, difficulties, difficulties in analyzing consumption variations, the importance of local correct statistics and questioning of existing methods of dimensioning a storage volume. The essay partially some problem areas, but further studies are required to find solutions in the sector and straight guidelines regarding dimensions and design of reservoirs.
5

Řízení zásobní funkce nádrže s využitím metod umělé inteligence / Control of the reservoir storage function using artificial intelligence methods

Hon, Matěj January 2022 (has links)
The diploma thesis deals with flow prediction using artificial intelligence to control the storage function of the reservoir. It focuses on the control of storage function using combination of dispatching graphs and flow prediction. The work is divided into a methodological part and an application part. The methodological part contain describes how the acquisition of historical data, a description of the work of dispatching graphs and forecasting models. The application part contains flow forecasts and outflow control. A prediction model is based on the fuzzy method, and it is used to predict inflows. The calibration and validation of the prediction model is also described. Results of prediction model were evaluated. In next step the results of control method were evaluated and compared with result of dispatching graphs. The results of controlled method were satisfactory.

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