Presented diploma thesis focuses on the study of diffusion of cupric ions in humic acid gels. A total of fifth different standards of humic acids and one sample humic acid prepared from same source as in bachelor's thesis, on which this thesis continues, were used for preparation solutions of humic acids. Thereafter, these solutions were used for preparation of agarose hydrogels, which were necessary in following diffusion experiments. The objective of the work was to compare transport properties of humic standards between themselves and then compare standards with humic acid prepared from same source as in bachelor's thesis. Measure, which was used to determine the transport properties, was comparison of effective diffusion coefficients. Method of instantaneous planar source diffusion was used to compare them. This method was based monitoring temporal evolution of diffusion profiles of cupric ions in humic hydrogels. Copper ions were selected as diffusing medium because of their high affinity and strong bonds to humic acids.

The aim is to adapt the old heating system so that the new system will meet the needs of users and facilitate control of system. The new heating system can independently control heating automatically. Its important part is remote access to system control. The user always has up-to-date information and can adjust the heating to suit his needs.

Smooth fluorocarbon plasma polymer films have been for a long time considered for fabrication of hydrophobic and slippery coatings. Interest in fluorocarbon materials was also supported by their excellent self-lubricant, dielectric properties and chemical inertness. This thesis is focused on development of new methods for fabrication of fluorocarbon plasma polymes, which could combine the chemical composition and the physical structure necessary for reaching superhydrophobic character of coatings. Poly(tetrafluoroethylene) was the subject material. RF magnetron sputtering using gas aggregation cluster source was the method adapted to fabricate fluorocarbon nanostructured films with chemical composition close to conventional bulk PTFE, but with high degree of cross- linking and branched structure. A model of growth of such plasma polymer nanostructures was discussed.

This diploma thesis deals with the social network Twitter as a journalistic source for printed dailies and Internet news portals in the Czech media environment. The work consists of two main parts - theoretical and practical. The theoretical part first briefly introduces the general influence of social networks on the form of the journalistic profession today, then attention is focused specifically on the social network Twitter and its relationship with journalists and media organizations. At the end of the theoretical part, knowledge from the use of the digital platform Twitter as a journalistic source and how this fact affects journalistic routines and procedures is analyzed, also with the ability of Twitter to strengthen the role of certain types of sources and contributes to the personalization of the media and political environment. The practical part of this work will deal with how this procedure in the use of Twitter as a source differs between traditional printed dailies and Internet news portals.

The thesis focuses on the analysis of the effect of selected elements of public licenses on increasing the quality of information published in the informational environment of the internet. The objective of the thesis is to ascertain whether there is a real effect on the quality of information in the internet environment through improvements in the quality of the sources of such information, as well as the reflection of the results of the conducted analysis within the obligatory informational education in the Czech Republic. In the first section, the work deals with the copyright aspects relating to the analyzed issue and defines, from a legal standpoint, the individual components of the information environment being analyzed - the internet, the participants of the informational process, the information and the options of dealing with them. In the subsequent section, the matter of licenses is presented, with a focus on the issue of public licenses in general, as well as specific selected license types constituting a potential platform for qualified informational behavior. The last section of the thesis summarizes the results of qualitative research of the effect of licensing policy on the informational environment of the internet through the application of public licenses. The results of such...

Electron microscopy has become an essential component in many scientific fields, in which it contributes to new discoveries. The microscopy itself is continually being developed and the limits, which seemed to be insurmountable, have been overcome. The instruments have become user friendlier and their mobility enables flexible practical use in the field. The subject of this work is the design of a scanning electron microscope, the calculation of a magnetic curcuit of an immersion objective combined with standard lens, the theoretical calculation of a microscope resolution and the design solution of the mechanical parts of the microscope with a sample manipulator. The thesis includes a description of the electron microscopy development summarizing it briefly from the very beginning up to now. It also deals with electron sources, especially the Shottky cathode, which is to be the main object observed by the proposed device. The work also contains a description of the calculation of the microscope resolution as a function of the current density distribution. Another interesting issue included in the theoretical part is the signal detection, a description of several types of detectors and possible signal processing. The solution of the thesis includes a description of the concept of the scanning electron microscope with an explanation of the distribution of combined lens functions. The optical diagram shows the arrangement of the electron optics system and the distibution of pressure in the chamber of the microscope. The theoretical calculation is devoted to the magnetic curcuit design of the objective and to the resolution of the microscope for a given extent of working distances. Two modifications of the lens were designed – a standard simple objective and a combination of the standard objective with the immersion magnetic one. The results of both modifications are given for the parameters to be compared. The combined objective was designed with the possibility of use in two modes, as a standard and immersion lens. The deflection system is also divided into two modes, as a single deflection for the standard lens and as a two-dimension deflection for the immersion lens. Detectors for secondary electrons (SE) and detectors for back scattered electrons (BSE) will be used for the signal detection. The design of the microscope is another large part, which gives details on the most significant components of the microscope. The content of the technical solution is a three-dimensional computer model, created in Autodesk Inventor, which also includes a sample manipulator driven by piezoelectric actuators.

This work is dealing with a study of process simulation and its use for the costs of poor quality monitoring. The process simulation is generally in many companies not too used and moreover, there is no software at the market, which would easily described economical efficiency of processes. The main purpose of this work is to suggest such a application. The study contains of the detailed data models for each function of the application, requirements specification and the feasibility study, which provide approximate costs for the development of such a application.

Dissertation thesis falls within area of indoor climate and deals with investigation of acoustic microclimate in sanitary rooms of residential buildings during a mechanical ventilation. Sources of a noise in these areas are small fans. The thesis contains the evaluation of the existing situation concerning the referred issue, physical laws of acoustics and theoretical basics of acoustics of air conditioning. The part of the thesis is experimental measurement which aims to evaluate the situation in real applications and the possibility of influencing the acoustic microclimate by affixing of small fans on the building structure. The work contains a model for the verification of certain anticipated dependencies and theoretical investigation of the distribution of sound pressure levels in the sanitary room, depending on the location of the noise source. The last part of the work offers possible measures to improve the acoustic microclimate and elimination of the noise in sanitary rooms and in protected areas of residential buildings.

The master project is divided into three parts. The problematic of first and second part is kindergarten building, its technical equipment and management systems. The third part deals with financial, energy and environmental comparison of different heat systems. The kindergarten is single-storey building without basement and is located in Ronov nad Doubravou, Czechia. Building is based on strip footing and structural system is masonry wall system with gable roof. Material of both load-bearing and non-bearing walls are sand-lime blocks. External walls are insulated by external thermal insulation composite system. Vertical structures are designed from wooden lattice truss. The building site contains also outdoor parking lot and a garden with a playground.

The diploma thesis focuses on the role of the media in the lives of parents on maternity and parental leave and how they satisfy their needs through use of media. The thesis is based on the uses and gratification theory and especially on the typology of media-personal interactions defined by Denis McQuail. The aim of the thesis is to find out, through twenty interviews with mothers and fathers living in the household with a child or children, for what purpose the media are used by this specific group. The thesis includes a theoretical anchoring of the approach of uses and gratification theory concerning its historical development during the 20th century, but it also focuses on its concept at present after the spread of new media. The theoretical part of the thesis also deals with the characteristics of maternity and parental leave and it tries to identify everyday activities associated with this period and its positive and negative aspects. The methodological part describes the area of qualitative research and related procedures, including the choice of data collection method, which is a semi-structured interview, and the characteristics of the research sample. The analytical part interprets the findings resulting from the data obtained through interviews with respondents. The discussion and conclusion of...