• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 191
  • 137
  • 119
  • 30
  • 24
  • 18
  • 14
  • 7
  • 5
  • 4
  • 3
  • 3
  • 2
  • 2
  • 1
  • Tagged with
  • 636
  • 95
  • 85
  • 79
  • 75
  • 72
  • 66
  • 53
  • 48
  • 47
  • 45
  • 42
  • 41
  • 39
  • 37
  • 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.
471

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.
472

Návrh změny kostrukčního řešení hlavních závěsů křídla letounu Z 242 / Design of new konception of the structural design of the main wing hinges of the Z 242

Hála, Aleš January 2020 (has links)
This diploma thesis deals with modernization of the Z 242 L aircraft wing. The main emphasis is given to the connection of the wing and fuselage. The new concept of both main and rear wing spar is designed together with integral fuel tank. The strength of the structure is evaluated analytically and numerically by use of Finite element analysis. Wide range of milling operations is implemented into manufacturing process as well. This thesis shows how to innovate current aircraft with respect to feasibility of the design in case of future project realization.
473

Studie variant odkanalizování rekreačního střediska Vřesovice / Study of variants of sewerage of the recreational center Vřesovice

Krulová, Martina January 2021 (has links)
The diploma thesis deals with the possibilities of sewerage and wastewater disposal in the recreational centre near Vřesovice. The purpose of the diploma thesis is the elaboration of variant solutions of sewerage, including the proposal of possibilities of wastewater treatment, economic evaluation of variants, their subsequent comparison and recommendation of the most suitable variant. The diploma thesis deals with the design of variants of wastewater treatment with subsequent discharge into surface waters. Finally, the advantages and disadvantages of the individual variants of sewerage are summarized with a comparison of costs and subsequent recommendation of the variant.
474

Omezení spínacích ztrát ve spínaných zdrojích / Switching loss reduction in the switch-mode supplies

Vašíček, Adam January 2012 (has links)
The master's thesis covers in its first parts origins and consequnces of the switching losses, basic principles of the various resonant tanks and resonant DC/DC converters. Afterwards the innovative approach of the multiperiod modulation is presented. The main advantages of this kind of modulation include very wide zero current switching region and lowering the switching frequency as the output voltage decreases. In the remaining part of the thesis a prototype converter design is described.
475

Stáj s dojírnou / Stables with Milking House

Lenoch, Petr January 2013 (has links)
Master’s thesis deals with a project documentation of a farming building. It is situated in agrarian farm in Horní Kalná in Královehradecký kraj. There will be 340 cows. Stable will be connect with milking house by connecting tunnel. Head mission is with simply solving and with useing high technology create very good conditions for stay of animals (welfare).
476

Návrh protipovodňových opatření v povodí toku Březnice. / Flood Control Measures Design in the Březnice Creek Basin

Zárubová, Kamila January 2014 (has links)
This thesis deals with the flood control. In particular, the design of a set of small water reservoirs with retention effect (polders) and their effect on flood flows. The work is divided into two parts, the first part refers to the bachelor thesis. In this thesis is description of the catchment, rainfall-runoff process and the evaluation of the ratio. That was got the necessary information for the design of polders. This is an abbreviated repetition of the contents of the thesis, which is a continuation of this work. The second part deals with the specific design of two reservoirs, including hydro calculations and drawings. For this work were used ArcGIS - ArcMap, Hydrog and to create drawings AutoCAD 2010.
477

Modelování hydraulické účinnosti vícekomorových septiků / Hydraulic efficiency of multi-chamber septic tanks based on mathematical modelling

Hradilová, Iva January 2015 (has links)
The submitted diploma thesis is focused on finding optimal inside arrangement of multi-chamber septic tank using the conductive method. The diploma thesis brings detailed description and measuring results, including the testing of several different arrangements of the standard circular three chamber septic tank in the project TAČR with the working title "Anasep" and newly developed four-chamber septic tank with several innovative features. The results are then categorized according to own terminology for ease application in the practice. The described method may be a suitable alternative for other technically and economically less available methods. The method shows very clearly whether the inner space of the septic tank sufficient use its volume to the velocity field distribution which has a direct impact on the rate of sedimentation of suspended solids and therefore affect the life of the downstream filtration equipment. Measured data processing and graphical outputs were processed in the programme Minitab. Graphical display of all variants of septic tanks was carried out using SketchUp. Visualization of a septic tank in 2D and 3D space plane was solved in COMSOL Multiphysic with the application of CFD module. The conclusion is based on achievements discussed the applicability of the described method and it presented hydraulically efficient multi-chamber septic tank, which is currently copyrighted solution, developed by a team of solvers in the project ANASEP.
478

Technický audit vodojemů / Technical Audit of Water Tanks

Šlesinger, Jan January 2015 (has links)
This diploma thesis aims to design a methodology for technical audit of water tanks. The first part presents basic information on water tanks, followed by a brief summary of Czech legislation related to developing water tank renewal financing plans. The key part of the thesis is designing the structure of TEAA water tanks module, which will be included in TEA Water methodology, being developed at Institute of Municipal Water Management. The module under proposal is implemented as a MS Excel application, which is used to assess selected water tanks. The assessment results are compared to results obtained using TEA Water web application, which implements a draft of the TEAA module from October 2014, and to the results obtained using TAWAT.xls application.
479

Vytápění rodinného domu s využitím tepelného čerpadla / Heat pump for domestic heating

Koubková, Lucie January 2008 (has links)
This diploma thesis is about using heat pump (HP) to gain energy. The theoretical part contains introduction, historical development of HP, principle of function, description of individual components, working cycle of heat pump and sources of lowpotencial energy and accordingly possible types of heat pumps. The practical part is devoted to proposal of appropriate type of heat pump for heating and warming of tap water for family house and economical evaluation of this solution.
480

Návrh vytápění pro nízkoenergetický rodinný dům. / Design of a space heating system for low-energy family house.

Nešpor, Pavel January 2010 (has links)
My diploma thesis is focused on design scheme of low-energy family house’s heating system. The goal of the first part of thesis is an introduction of the object following by calculations of transmission coefficients of heat through constructions and calculations of heat loss. Creation of proposal and calculation of underfloor heating output as well as panel and piped radiators and convectors are followed by proposal and calculation of dimensions of piping, pressure loss of underfloor loops, panel and piped radiators and convectors. The thesis also contains design of heating pump with bivalent heat electrical source, calculations of need of heat and calculations of total costs of working heating system as well as design of storage tank and accumulator for hot water. The last part of thesis is focused on control of the heat system.

Page generated in 0.0403 seconds