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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.
371

Vícepolová mostní konstrukce / Multi-span bridge structure

Necid, Miloš January 2017 (has links)
I deal with the road bridge near Velké Meziříčí in the thesis. The highway bridge overcomes valley 360 m long and 36 m high. For each course there is a separate super-structure. Each of the support structures converts three stripes of road transport. I do calculation of internal forces both manually and in Scia Engineer. In the thesis is drawings, showing the gradual construction, diagram of prestressing and reinforcement.
372

Obezita: případ České republiky / Obesity uncovered: the case of the Czech Republic

Veselá, Barbora January 2021 (has links)
iv Abstract This thesis uncovers the long-term development of overweight and obesity prevalence in the Czech Republic and finds the associations with relevant lifestyle risk factors and determinants of health. Periodically collected interview and examination survey data from 1993 to 2019 are standardised and used to perform a pooled analysis to inspect trends within the cross-sectional units. The binomial logistic regression is used to estimate changes in the odds of being overweight given a set of socio-economic and lifestyle-related predictors, and to inspect time trends in their magnitude and significance. Adjustment to historical data is calculated to account for methodological changes in BMI classification scheme to ensure comparability of survey outcomes. In addition, the response bias in self-reported anthropometric measurements is confirmed and quantified. Finally, the most recent data (2019) for obesity rates are updated accordingly to reflect this finding. The true prevalence of overweight in the Czech adult population is calculated to 75.8% for men and 58.8% for women, which is higher than interview survey results by 7.7 and 9.6 percentage points respectively. These adjusted results may be utilised by users of survey outcomes to build their analyses on validated data, together with other...
373

Za hranicemi: Analýza potratových diskurzů v (ne)demokratickém Československu / Beyond The Frontier: The Analysis of Abortion Discourses in (Un)democratic Czechoslovakia

Prajerová, Andrea January 2012 (has links)
My thesis focuses on reproductive politics of (un)democratic Czechoslovakia, namely on the discursive construction of abortion as presented in the scientific and political discourses in the 20's and 50's. The aim is to compare the discourses and track the genealogy of control and regulation of women's bodies as biopolitical spaces within the Czechoslovakian nation. The text uses theories of G. Agamben, M. Foucault and R. Miller which deprive from the classical/juridical model of sovereignty and rights and offer a biopolitical one instead. Using this perspective the text tries to answer whether there is a difference between scientific and political discourses of so-called democracy and communism. That is, whether by putting the abortion into the center it is possible to speak about democracy and communism as if they were two different and mutually exclusive systems. Through the lenses of poststructuralist feminist analysis the thesis tries to doubt the binaries of "communism" - "democracy", "East" - "West", in which democracy always signals the good and communism evil. Analysing the discourses surrounding the enactment of 1957 law the text also ponders whether it is possible to read the law as a typical communist product, implanted by someone from the outside.
374

Statika atypického RD / Statics of an atypical family house

Bartoň, Jakub January 2022 (has links)
The diploma thesis deals with a desing and assessment a prestressed ceiling structure above a family house with a vegetated roof. The creation of the static model was analyzed by the SCIA Engineer program.
375

Návrh a posouzení ŽB konstrukce / Salesian Center

Martinek, Ivo January 2022 (has links)
This final thesis is focused on a reinforcement design and check of selected reinforced concrete structure parts of a church building. A spatial model loaded with dead and live loads is designed in order to carry out a structural analysis in SCIA Engineer software. Serviceability limit state and fire resistance are then checked for some selected load-bearing elements. The drawings are also included in this work.
376

Využití dat pro systém hospodaření s vozovkou na silnicích II. a III. tříd k posouzení účinků vnějších vlivů na povrch vozovek / Usage of data for the pavement management system on roads II. and III. classes to assess the effects of external influences on the road surface

Skořepová, Eliška January 2022 (has links)
The master thesis is focused on sorting collected primary data, their subsequent analysis and further comparison in the field of road defects. The collection of pavement failures was done by visual inspection with its recording to a computer for the pavement management system. The data later underwent detailed analysis with the aim to find a potential link between the road defect and the location of the damaged section. The study took place on 2nd and 3rd class roads in the Liberec Region, with special focus on those located near forests. The data collection itself took place in the Liberec Region in 2021. The processing and subsequent evaluation of collected data was done thanks to the availability of comparable data sets from 2014 and 2019 to 2021, so the development of road defects of the selected road network in relation to the surrounding afforestation could be assessed. The last part of this master thesis compares results in different classification levels, time periods and levels of afforestation.
377

Železobetonová rozhledna / Reinforced concrete lookout tower

Kalinová, Kristýna January 2022 (has links)
The diploma thesis is focused on structural design and assessment of lookout tower. The elements of the lookout tower are made of cast-in-place reinforced concrete except for the stair flight, which is made of prefabricated reinforced concrete. The output of the diploma thesis is a structural design report and drawings of the shape and reinforcement. The calculations were performed using Dlubal RFEM 5.26.02. The drawings was processed by AutoCAD 2020 with the RECOC extension.
378

Návrh zařízení pro měření a hodnocení tepelného stavu prostředí / Device Proposal for Measurement and Evaluation of Environmental Thermal State

Janečka, Jan January 2012 (has links)
The thesis deals with evaluation of the environmental thermal state in closed rooms with people inside the room. The achievement of thermal comfort is related to thermal balance of human body. People are producing heat during their work, which has to be carried away from the body to surrounding area by radiation, convection, conduction, respiration and evaporation. The intensity of heat removal is influenced by environmental parameters, especially by air temperature, mean radiant temperature, air velocity and humidity. Personal factors as energy expenditure of human body and clothing resistance are influencing the intensity of heat removal as well. People are able to influence the thermal comfort by their behaviour in given environment, appropriate clothing and regulation of basic environmental parameters. CSN EN ISO 7730 standard states that environmental parameters should be estimated or measured. The operative temperature is than evaluated from collected data. This operative temperature is defined as the temperature of black enclosed area where the human body will be by convection and radiation sharing the same amount of heat as in real inconsistent environment. Nowadays on the market there is no cheap solution for sensor which is able to evaluate the operating temperature and could be used in buildings. There are a lot of professional sensors which have very high accuracy, but are very expensive. Therefore are mainly used only for research or for single and exceptional measurement of environmental thermal state in rooms. The thesis is therefore focused on proposal of suitable (compact) operative temperature sensor assembled according to valid regulations and standards. Emphasis is placed mainly on the sensor price together with guarantee of sufficient accuracy. The proposed sensor is providing information to control system which is than able to adjust the parameters of environment using appropriate way based on relevant requirements. Here is some space for energy savings due to possible continuous measurement and evaluation of environmental thermal state in different rooms. Therefore, during continuous measurement no unnecessary rooms overheating in winter as well as unreasonable cooling in summer should occur. This research and solution is than reflected in reduction of energy consumption used for building operation and subsequently reduction of the pollutants production. This issue is being watched with increasing interest. Another advantage is that whole system is able to work autonomously without human intervention. People no longer have to continuously adjust air temperature because the control system is able to evaluate the most appropriate adjustments based on objective data obtained from the sensor. The thesis includes subsequent verification of proposed sensor as well as the definition of sensor technical parameters including analysis of measurement uncertainties.
379

Analýza spolehlivosti tlačených ocelových sloupů se stojinou obetonovanou betonem vysoké pevnosti / Reliability Analysis of Steel Columns with Encased Web in High Strength Concrete under Compression

Puklický, Libor January 2015 (has links)
The presented paper deals with a theoretical analysis of the ultimate limit state. The results of experimental research carried out at the Institute of Metal and Timber Structures headed by Assoc. Prof. Karmazinová and Professor Melcher were applied. The geometrically and materially nonlinear solution based on the Timošenko’s solution is verified by the FEM model in the computer programme system ANSYS. The random influence of initial imperfections is taken into consideration. The FEM model also includes the influence of residual stress. In the parametric study, the influence of residual stress on the cross-section plastification is researched into, its influence on the load carrying capacity limit is, together with the influence of other imperfections, the subject of the stochastic analysis, applying the Latin Hypercube Sampling (LHS). Further on, the study proves a direct effect of the concrete part of the cross-section (combination of materials steel-concrete) on the decrease of load carrying capacity limit of the beam caused by influence of the residual stress of steel. With regard to the importance of time dependent phenomena of the concrete creep for the load carrying capacity, the studies given in the Ph.D. thesis are oriented in this respect. The parametric studies of the influence of the concrete creep having applied the Standard Eurocode 2 provide both a comparison of load carrying capacity limits when using common and high-strength concrete types, and also the variability of load carrying capacities. It follows from the comparison of the statistical analysis outputs according to the design reliability conditions of the Standard EN1990 and of the approach of Eurocode 4 that the Eurocode 4 can be recommended for dimensioning of this member type. According to the studies which we carried out, the design in compliance with Eurocode 4 can be evaluated as the reliable one. A larger set of experimental data is necessary to determine the economy.
380

Převody mezi CF gramatikami a zásobníkovými automaty / Conversions between CF Grammars and Pushdown Automata

Makovský, Benjamin Unknown Date (has links)
This work suggests and solves the implementation of the transformation of context-free grammars and the conversions between context-free grammars and pushdown automata. It makes acquainted with the models used in modern theory of formal languages. In the work are indicated all algorithms necessary for transformations and mutual conversions between context-free grammars and pushdown automata. Proposed is an object representing the grammar and the automaton in the programme. Described is the assigning of definitions of grammar and of the automaton, the solution of drawing the automaton on the screen and the creation of graphical user interface of the application. The resulting programme is developed as Jawa applet which is available on public internet pages www.convertcfg.php5.cz.

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