This study aims to compare the strength of bonding joint and bonding quality depending on the proportion of violations. The first part contains a research of various types of adhesives. Based on the research, two types of adhesive were chosen - the PVAC and UF adhesives. These adhesives are used directly in manufacturing of solid wood panels. Our test samples were made of beech wood and oak wood using both types of adhesive, four groups of samples altogether. The thesis contains an analysis of the requirements for bonding strength as well as production of samples from solid wood panel. According to current standards, the tests were performed to determine the density, moisture content, strength of bonding joint, the bonding quality and proportion of violations.

The diploma thesis deals with the design of a steel technological structure in the locality of Štětí. The struture is used for the paper production technology. The geometry of the structure was customized to technological requests. The statistic system was considered in two versions – joint connections and frame – joint connections. The frame – joint connections system was chosen for detail processing. The steel structure was calculated by Scia Engineer 19 software. The connections were calculated by Idea statica software. The thesis is processed according to valid standars of ČSN EN.

The aim of this thesis is to study the methods of a free space optical link design and its application in the communication technologies. The thesis describes possible intrusive influences on the transmitted optical signal, which are the signal noise, atmospheric attenuation and atmospheric turbulences. The thesis is particulary focused on the influence of the atmospheric turbulences and atmospheric attenuation on the optical beam.

The subject of the diploma thesis is the design and structural analysis of an exhibition hall. The building is located in Brno city. The dimensions of a floor plan are 121,8 m x 66,5 m, the height is 17,75 m. The load-bearing structure consists of arched truss girders, which are pin-supported by fixed columns. The distance between main trusses is 8,7 m. The supporting part of the roof deck consists of solid-purlins. Spatial rigidity of the structure is ensured by cross bracing and longitudinal bracing. All structural members are made of rolled steel profiles and are designed according to current ČSN EN standards. Steel S355 is used as the construction material. This thesis consists of structural design report of main load bearing elements including connections design and drawings.

This master thesis shortly deals with properties and usage of the Resysta material. The main objective of this thesis is to determine a temperature influence on tensile strength of welded and glued joints made from the material Resysta, for an usage such as an outdoor furniture, temperature influence analysis of the joints and to present the results of the analysis obtained by measurements. Further objectives are: tensile strength experiment of material Resysta and to determine influence of placing the pieces in a desk in different directions. Results will serve as a basis for a specific firm; as a basis for deciding between technology of gluing and a technology of welding and also for input for a custom made single purpose machine made for welding of material Resysta. Tests were performed in exposure temperatures -30 °C, 20 °C and 60 °C. We will perform two tests; first test will focus on the tensile strength of glued and welded joints and second one will try to test of tensile strength of Resysta material. Experiments were conducted according to standards ČSN EN 205 and ISO 527-1 on the Instron 3365 testing machine. Laboratory tests showed that values of tensile strength were decreased while increasing the exposure temperature and this was consistent in every test performed. A statistical significance was also confirmed in work piece direction influence on a board. There were higher values of the tensile strength in longitudinal direction than in the transverse.

Flat roofs are very desired type of building roofing these days. We can find flat roofs in construction of family and apartment houses, manufacturing and storage buildings, office buildings, shopping centres, etc. and not only in constructions of new building, but in substantial amount also during reconstruction. For every flat roof it is necessary to design a way of roof plies stabilization against wind suction. Gluing is one of many used methods of flat roof stabilization. The gluing itself can be implemented by innumerable adhesives of various compositions from many manufacturers. Gluing has advantages and disadvantages as every method. Lack of information can be considered as key disadvantage. Especially the lack of information about strength of gluing joints. The dissertation is focused on polyurethane adhesives, their application for stabilization of layers in flat roof and experimental determination of strength values of glued joints. The first phase of the dissertation aims to create a test methodology for experimental measurements. As a part of the methology to create a test model, a test apparatus and a procedure for experimental measurements. In next phase dissertation focuses on experimental measurements and their evaluation. Research was primarily focused on properties of gluing joint depending on the amount and type of the adhesive, material of bonding layers and technological indiscipline. The results of experimental measurement provide numerical values of strength of the gluing joints and pointed to risky situations which can occur during realization. The conclusion provides practical recommendations and possible opportunities for continuation of the work on this topic.

This thesis deals with pre-treatment of surface of aluminium alloys. The theoretical part focuses on the properties of aluminium and its alloys, on methods of surface treatment and the possibilities of quality assessment of pre-treated surface. The experimental part deals with finding of a proper method of pre-treatment. The quality of surface pre-treatment is assessed by observation by SEM with EDS and by single lap shear tests of adhesive joints. According to evaluated results, the optimalised methods are qualitatively and financially compared with the commercial method.

The goal of this thesis was to design a steel structure of a footbridge for pedestrians and cyclists over the river Úpa in Trutnov spanning 20m. Also, it was calculated with a crossing of 3,5t vehicle. Preliminary design was carried for two variants. Variant B is truss structure, structure of Variant A is carried by prestressed cable and is further developed. Main structural beams of variant A are designed to be a shape of parabole with the middle beam connected by arbitrary profiled vertical beams to supporting prestressed high yield cable. For the design of structure, SLS was the main factor so elastic check is performed for ULS.

This dissertation thesis deals with a long range free space optical links for communication over the distance of few tens of kilometers in the atmosphere. The problematic of the beam propagation and atmospheric effects influencing the beam and the quality of the communication protocol are discussed. The measuring link is also designed to study the parameters of the communication link work conditions. The measuring link consists of two heads. The transmitter head is designed to use two optical beams with laser diodes at the wavelength of the atmospheric windows 850 or 1550 nm and the overall power of hundredths of mW. The receiver head includes the Fressnel lens. For the detection of very weak signal, the avalanche photodiode is used. In the end of this work, due to the high power of the transmitting optical beam, the laser safety conditions are also discussed, including the deduced optical transmitters construction recommendations.

The doctoral thesis is focused on research on application possibilities of soldered interconnection structures especially for the use with innovative 3D structures assembled using the LTCC ceramic materials, PVD deposited and galvanically modified pads, solid core solder balls. It consists of several main parts. Introduction is followed by theoretical survey of current situation and technologies. Thesis continues with introduction of main goals and with summary of successively performed experiments and their results. End of the work belongs to summary of results and gained knowledge.