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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.
151

Průzkum a hodnocení stavu dřevěné konstrukce / Survey and evaluation of wooden construction

Křivánková, Soňa January 2014 (has links)
This work is focused on compilation of general diagnostic methods used for diagnostic of wooden structures specifically listed wooden roof truss of church st. Bartholomew in Ivan. The main impulse of diagnosis was extensive damage and attack of truss and effort on rehabilitation and construction of the entire building of the church with an emphasis on preserving historical values. Diagnosis of truss was based on the research used sense and instrumental methods. In the first step, identify all dimensions of the individual elements of the structure was determined, the type truss system was intended. Follow-up survey was focused on determining the extent and causes of damage. In design of the rehabilitation process emphasis is placed on structural rehabilitation provided by follow-up processes, such as preventive chemical protection.
152

Diagnostika poruch a vad podlah v bytové a občanské výstavbě / Diagnostics of flooring failures and defects in the housing and civic construction

Vrtal, Roman January 2014 (has links)
The object of the thesis is a description of preparation process, realization and subsequent treatment of floors based on calcium sulphate, including problems related to the issue. The aim of the work is to closely acquaint the reader with methods used in diagnostics of flooring failures and defects in the housing and civic construction, including practical applications of these methods on real structures. The work also includes experimental analysis of a real floor construction during local load effect.
153

Hodnocení metod pro stanovení vlhkosti ve stavebních konstrukcích / Evaluation of methods for determining an air humidity in building constructions

Nogová, Tereza January 2015 (has links)
This thesis compares the methods for the determination of air and moisture condensation in the construction. There are descriptions of the various methods and formulas for measuring humidity and methods for the calculation of condensation in building structures. The practical part describes the development of a method for verifying the condensation of moisture in construction. Parts of this work are the materials and methods for the development of the humidity sensor. There were used two methods – capacitive and resistive for measuring moisture condensation. In the conclusion is the evaluation of the humidity sensor and compares the results of individual measurements.
154

Návrh úprav biomasového kotle pro velmi vlhká paliva / Re-design of biomass boiler for very wet fuel

Zbořil, Martin January 2014 (has links)
The aim of this thesis is to calculate the stoichiometric balance of boilers and boiler fuel for normal monture to 60%. Determine the monture, content depending on the conditions of the fuel in the combustion chamber and conditions of combustion. Experimental analysis of the current state of the boiler ZKG measurements using this device and propose modifications and solutions.
155

Elektrické, optické a senzorové vlastnosti organických polovodičů / Electrical, Optical and Sensoric Properties of Organic Semiconductors

Pochekailov, Sergii January 2009 (has links)
There is big interest in cheap, sensitive and selective gas sensors. In this work, substituted soluble phthalocyanines are proposed as a sensing materials for several gases. Optical, electrical and gas sensing properties of several phthalocyanines were studied and the mechanisms of their interaction with several analyte gases are described. It was found, that sulfo-substituted Pcs has good sensitivity to humidity. Sulfonamide-substituted phthalocyanines are promising for nitrogen dioxide and volatile organic compounds detection. tert-Butyl-substituted phthalocyanines are sensitive to NO2 under higher temperature and seems to be used for environmental monitoring. Commercial gas sensors for NO2, ethanol and humidity were successfully created.
156

Energetická certifikace systémů větrání a klimatizace v budovách / Energy valuation of systems of ventilation and air-conditioning

Píšová, Petra Unknown Date (has links)
The main theme of dissertation theses is systems of ventilation and air-condition used in buildings. Work consists of analyse of this systems and parameters of indoor clime whose are affected by them. It summarizes demands on the process of calculation the energy efficiency of the building services by actual legislative. On one chosen type of building is done the energy simulation of implemented systems of ventilation and air-condition by energy efficiency and their specific need of energy.
157

Průzkum a hodnocení stavu dřevěné konstrukce / Survey and evaluation state of timber structures

Zouharová, Kateřina January 2016 (has links)
The thesis is focused on the assessment of two wooden roof structures of the building, which is located in Brno on the street Rumiště 8. Parts of the work are also theoretical knowledge of roof structures, building technical survey and diagnostic methods. Rating roof truss was based on a survey of sensory and instrumental methods. In the first step were measured dimensions of roof truss members and were determined roof structures. In the next section was researched damage of elements and his causes. Rehabilitation solution was established for each type of damage to the components resist any attack as long as possible. This report had been prepared for the property owner who plans complete reconstruction.
158

Stanovení účinnosti hydroizolační infuzní clony v různých typech stavebních materiálů vystavených kapilární vlhkosti / Determination of waterproofing screens efficiency in various types of building materials exposed to capillary wetness

Červenka, Martin January 2016 (has links)
Increased moisture of masonry occurs mainly in older buildings. In some cases these problems arise even in new buildings. This issue should be properly treated and process of rehabilitation of the building must be executed. Humid walls can be treated by chemical injections, which is nowadays quite extensive and widely used method. Unlike mechanical methods humid walls in the implementation of chemical grouting does not need a major redesign and thus is friendly to the construction of the object. The main objective of this thesis is to establish a methodology for testing the injection materials, which will include a selection of ideal injection gel.
159

Tepelně-vlhkostní analýza konstrukcí masivních dřevostaveb / Hygrothermal analysis of massive wooden structures

Uherka, Pavel January 2016 (has links)
This thesis deals with massive wooden buildings especially with regard to the current approach to their design, assessment and approval. In this thesis are shown future possibilities of development of traditional wooden buildings with regard to current thermal technical requirements. Theoretical considerations are then compared with measurements which were performed on massive wooden wall samples.
160

Inteligentní zařízení na noční stolek / Smart Nightstand Device

Vávra, Jan January 2016 (has links)
Master’s thesis describes design of smart nightstand device. Aim of this system is to monitor and recognize stages of sleep with subsequent transfer of the data to alarm clock to provide the most comfortable awakening. The alarm clock is backed up by batteries. The system controls parameters of surrounding environment using advanced sensors. The device is equipped with a removable light part which is backed up by power supply for illumination during a potential power outage. A pad for wireless charging with standard Qi is also part of this system.

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