Bioplastic research has become more diverse and different types of research on bioplastic production have been conducted from fruits and vegetable waste, for example, orange waste. The wastes that come from oranges contain more than just vitamins, it has soluble sugars, starch, hemicellulose, cellulose, and pectin. The intention of this project was to study the possibility to produce bio-composite films from orange waste, after removing the soluble sugars. It was also to analyze the properties of the material by tensile strength, visual observation, and to find a methodology that suits this study. An ultrafine grinder was used to mechanically separate the cellulose fibres, with the intention to compare the fibrillation cycles on the properties of the bio-composite films. A total of 30fibrillation cycle was performed. In addition, different film casting strategies were performed and evaluated. The primary plan was to produce a biofilm without the use of chemicals. After the observing the results three new routes for the methodology was developed where the usage of chemicals was be included. The citric acid was used as a solvent for pectin and glycerol was used as a plasticizer. In the first method, different concentration of citric acid and glycerol were added and observed. The combination which gave uniformed films that contained 0.3 g of citric and 0.375 g of glycerol for a 75 ml hydrogel. The second method was to infuse citric acid before grinding the orange waste suspension. Lastly, the third method was to bleach the orange waste before grinding. The films that were produced gave interesting results and from the tensile testing implied that an impact was made on the strength by every fibrillation. The amount of glycerol was consistent throughout the project, but by adding different amount of citric acid gave the films differentIIproperties. The same happened when changing the mould of the film. The best values of the films were from the 30th fibrillation, gave the mean value of 31.6 MPa in tensile strength, and had a strain in elongation at 6.1 %. The tensile strength and elongation had increased drastically compared the fifth fibrillation which had 9.8 MPa and 7.6%.

Master´s thesis deals with the selection and implementation of information systems for the company MedConcept Ltd., which sells medical technology and augmentation materials in stomatology.

This diploma thesis deals with the design of a gear crusher for crushing aggregates. The crusher, which has interchangeable tips, is designed so that even the crushing elements can be easily replaced. This piece of work is divided into a survey of the basic types of crushers, the design of the proposed crusher, basic control calculations and strength analysis performed by a computer program.

In the first part of this thesis is discussed of the possibilities of surface grinding. There are described various methods for grinding and describe their characteristics. Furthermore, there is shown the marking of grinding wheels and is discussed of their composition and of calculating the cutting forces. In the second part of this thesis the experiment is performed. On the samples of various materials are monitored parameters of roughness after grinding, which is used by conventional grinding BPH 300 and horizontal lathe from company TDZ Turn.

This essay investigates what may constitute a hypnotic digital artefact from a design standpoint. This essay is meant to help designers who want to create hypnotic digital artefacts in the shape of a game, or researchers who wants to further this field. With a case study analysing the game Cultist Simulator, this essay observes applications from this essay’s frameworks: NLP, Procedural Rhetorics, Flow, Trance, and Ericksonian Hypnosis. The case study serves to demonstrate how a larger scale reflection of intrinsic cross over points between hypnosis and the video game medium may take place within state-of-the-art discourse. This essay fulfils its design-aid purpose by charting factors that can be put in place to facilitate a trance and a hypnosis in a game, in a design table summarising design methods discussed. The means that may put a player’s mind in abeyance are posited here regarding how this may influence the game experience, including induction techniques, where suggestions are provided in how these might translate to a game format. Through its frameworks and case study, hypnotic content generation is put in focus, where this essay finds that games utilising metaphors and depicting inner spaces carry significance in this pursuit. It also finds that mirroring communication of the unconscious, such as adhering to rules of a dream state, and acknowledging the unconscious’ uses and capacities, has potential in this pursuit. Importantly, the essay includes a discussion on Cultist Simulator’s decadent aesthetics and its role in leading a player towards an alternate state of consciousness.

The Master´s thesis concerns about the safety of tool grinder, and in the research part deals with the legislative requirements of the European Union and the Czech Republic. The basic legal provisions governing machinery manufacturers are described and analyzed here. The second part deals with the safety of tool grinder, risk analysis and proposal of preventive measures for risk reduction. The tool grinder is analyzed here and the results are summarized in the block diagram is drawn. Moreover, there are identified potential hazards for individual parts and the appropriate safety requirements are construed.

Rail is a very expensive component of the railway track. Therefore, research methods extending rail life have great economic importance. During the past thirty years and, particularly during the past ten years there has been an increasing awareness throughout most rail networks in the world of the need to introduce improved design criteria, better construction techniques and higher standard track generally. This implies that quality control at all levels is mandatory if these objectives are to be achieved. With the improved understanding of degradation of track, a more complete comprehension of the costs associated with different operating and infrastructure conditions should also be developed, aiding in the determination of efficient maintenance costs and their contribution to access charges. Track and structures together account for 60% of maintenance costs, with 50% of the total being track. The UIC has done a lot of work on comparative performance indicators, and these show what potential savings much be out there for the taking, just by adopting current best practice. The old wisdom is that it's not enough o do things rights; we have to make sure that we do the right things. These developments have largely resulted from the demand for higher speeds particularly in passenger services and the demand to accept heavier axle loads of freight traffic. Whilst the conventional railway track structure is not likely to change significantly over the next ten years there will be a requirement over that period for better quality track infrastructure. This means less rail surface defects, less internal defects and less wheels irregularities. The presence of rail surface defects generally increases the roughness of the track leading to a poor passenger ride and increased safety risk with freight traffic. In addition, rail surface defects will generally increase the degradation rate of other track components; however, not all defects will produce visible track deterioration. Dynamic impacts produced by the rollingstock running over rail surface defects, such as poor welds, will, over time, create continuous rail defects, loosening of fastenings, abrasion and skewing of sleepers, crushing of ballast and loss of formation geometry. It is only in the recent years that the importance of poor welds in track has been identified. Dips and peaks must be recognised as a severe track irregularity that needs to be addressed and removed. Current maintenance activities have little effect on removing misaligned welds in track and the improvement obtained after the maintenance works is generally short lived. On the other hand, straightening operations have proven to solve the problem and maintain the results following 7 months of traffic. As part of this project, a six kilometre test section was selected on the Mt Isa Line and all welds located in this region were monitored for over 9 months to increase the understanding of the effect of individual maintenance activities on the track roughness. Three 2km Divisions were established; each Division had different maintenance activities and levels of intervention completed over the duration of the project. Over 15,000 readings were recorded and analysed. The following conclusions were drawn. The effect of cycle tamping was clearly identified when comparing the means of weld located in Division 1, 2 to the mean of welds in Division 3. Cycle tamping showed to have a significant positive effect on the dipped welds geometry and an increase in severity of peaked welds prior to their correction. Straightening operations completed in Division 1 and 2 reduced the overall mean of weld misalignments. These Divisions were subjected to different levels of straightening intervention however they produced similar results. Division 1 all dips were straightened and Division 2 only dips &gt0.3mm were straightened. This means that no additional benefit, in terms of overall misalignment of welds, can be gained when straightening operations target dips with a misalignment smaller than 0.3mm. Cycle grinding proved to have little effect on the removal of both dips and peaks. In fact, due to the configuration of the grinding machine, grinding operation produced a slight worsening of the dips misalignments and only a minor improvement of peaks. Although long term monitoring of the site may show minor variations in weld geometry performance, after approximately 3.9 Mgt of traffic the mean of dipped welds in Division 1 and 2 appeared to remain unaltered, as Division 3 showed a minor worsening. Furthermore, the mean of peaked welds in Division 1 and 2 appeared to remain unaltered, as Division 3 showed a minor worsening.

This thesis deals with a load testing of web applications. The text is introduced with a definition of the load testing, reasons for its execution and a description of its types. Recommended procedures are provided for preparation, execution and evaluation of the testing. Several commercial and open-source load testing tools are described. Cloud testing -- the contemporary phenomenon -- is also included. The entire process of load testing depicted in this text is demonstrated on a selected application. A following chapter briefly deals with a profiling of web applications. It, again, covers its definition and its purpose, accompanied with a practical example. The aim of this thesis is to introduce the reader to the world of load testing, which is primarily accomplished by describing an example, which provides an in-depth explanation for every step necessary in order to perform the web application testing successfully.