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Five tribochemically deposited coatings on honed cast iron cylinder liner segments has been studied with respect to surface properties, material composition, coating thickness, hardness and friction. Methods like Light Optical Microscopy (LOM), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), 3D topography using white light interferometry (VSI) and Electron Spectroscopy for Chemical Analysis (ESCA) were used to study the surface, coating thickness and material composition. Lubrication regimes (friction) were studied using a test set-up in a Lathe. An in-situ scratcher and nano indenter were used to study the hardness. It was found that the honing plateau surface is smoothened by the coating process while the honing scratches are kept more or less intact. The deposited coating thickness is approximately 10-100 nm. The coating is softer than the substrate and shows a butter-like behavior when scratched. Using only sulfur additive in the process fluid gives a smooth surface and an evenly distributed coating. Tungsten additive in the process fluid gives a thicker coating but a more irregular material distribution. Tungsten additive in the process fluid does not seem to stimulate the formation of WS2, but rather WO3 is formed.

In this thesis, a discussion on the effectiveness of acoustic design in public spaces is made. The auditory properties of a location have noteworthy implications on the success of a building's design and how a room is perceived. Depending on the requirements of each location, either a reverberant or sound-absorbing approach is best suited for the environment. Moreover, public health is negatively affected by long-term involuntary noise exposure. Because of this, there is an obvious demand for continued and expanded study in acoustic design. This thesis aims to challenge interior design choices made in four testing locations: a classroom, a musical practice room, an ambient performance space, and an office. Reverberation time is tested at each site using both a Digital Sound Level Meter application (Decibel X) and a 732A Digital Sound Level Meter paired with a series of external source sounds at set testing frequencies. Depending on the results of each trial, an evaluation of possible improvements to each location's aural properties is made.

When measuring people’s trust, research show a negative trend where people’s trust over time is declining globally, where digitalization is accelerating the process. Trust is a key component in a democratic society and social studies has the task of communicating democratic values and integrate the students in the democratic process. The aim of the present study was therefore to examine how different aspects of the concept “Trust” are highlighted and portrayed within different fields of knowledge in textbooks for social studies in upper secondary school. Three aspects of trust was analyzed; social capital and trust in one’s surroundings; trust in the political system and its institutions; how the economic system influence people’s trust. The concept of trust was examined through a thematic analysis, with discourse analytical elements that calculated frequencies of latent and semantic value words. The analysis indicate that both textbooks contain a frequent space for discourses of trust, where social trust is highlighted. Furthermore the results showed a big difference between latent reasoning about trust and direct semantic reasoning about trust. When examining study questions and tasks similar results were found, where Arena 123 had the most latent codes in the answer options, while Perspektiv på samhället had the most direct trust frequencies.

The dissertation thesis deals with the development of the Laser-Induced Breakdown Spectroscopy (LIBS) setup in the modification for the mobile remote material analysis (so called rLIBS). The experimental device is developed at the Institute of Physical Engineering, Faculty of Mechanical Engineering (FME), Brno University of Technology (BUT). Such a modification is possible due to the core principles of LIBS technique, i.e. using a laser for a sample excitation and plasma radiation for spectral analysis. The thesis is focused on the variation called Stand-Off LIBS with the target analyte in the distance of 6 meters. In this case the laser pulse and the plasma radiation are transmitted through the local environment (usually the air) and the direct device-to-sample visibility is expected. The motivation for this development is to avoid traditional processes of sample collection, preparation and transport that are time-consuming, expensive and sometimes even hard to realize. Stand-Off LIBS allows bringing all the LIBS technique benefits from the laboratory to the field, where fast, in-situ analysis can be carried out. The first part of the thesis focuses on the history and principles of the Atomic Emission Spectroscopy (AES), as it is the main principle of LIBS technique. The second part describes the history, theory, instrumentation and applications of LIBS as a modern analytical tool. This part also introduces the remote mobile modification – rLIBS, as well as the current state of knowledge and the state of the development in LIBS laboratories worldwide. The third part describes the individual stages of the rLIBS development at the Institute of Physical Engineering, FME BUT. This chapter details the focusing optics design, building of the collection optics, design and construction of the detection unit, motorized stage and mobile track. This section contains also the results of the test spectroscopy measurements and movement ability measurements.

Master´s thesis deal with optimum proposal reset vineyard economy in viticultural area Strachotin. The task is utiliziation of landscape potential CHKO Palava and hydro-electric plant Nove Mlyny with promotion development agricultural tourism in the area. Theoretic part of thesis includes analyses inquiries and progression areas, production problems and vine processing. Practical part includes set of questionable drawings, used technology and material for security of correct performance function construction.

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Majoriteten av undervisningstiden för matematik i den svenska skolan baseras på läromedlens innehåll. Som lärare är det lätt att inte arbeta direkt i förhållning till Skolverkets ämnesplan utan att i stället utgå från att läromedelsförfattarna redan har gjort det jobbet. Tidigare forskning har visat att läromedel generellt haft förhållandevis få uppgifter som uppmanar till matematiskt resonemang. I denna studie undersöks specifikt uppgifter markerade som ”enklare” i åtta läromedel avsedda för den svenska gymnasieskolan och hur stor andel av dessa som kan anses ha tydlig möjlighet att uppmana elevers användande av matematisk resonemangsförmåga. Totalt analyserades 1 350 uppgifter och cirka 12 procent ansågs innehålla resonemangskriterier baserade på ett ramverk av Johan Lithner. Resultatet antyder att elever som håller sig till de enklare uppgifterna inte får särskilt goda möjligheter att arbeta med den matematiska resonemangsförmågan vilket kan innebära att dessa elever i viss grad inte arbetar efter ämnesplanens bestämmelser. / Swedish mathematics education is heavily dependent on the content of the teaching materials. As a teacher it is easy to assume that teaching material developers are basing the content on The National Agency for Educations provisions regarding what students are expected to learn. Research suggests that tasks in the teaching materials rarely supports students with the need to reason mathematically. This study focuses on tasks indicated to be “easier” in eight books that were analysed by their ability to support the student’s ability to reason. 1350 tasks were analysed and approximately 12 percent met the criteria required based on a research framework by Johan Lithner. The result suggests that students that tend to mostly work on the easier tasks in the materials doesn’t get very good opportunities to further improve their ability to reason mathematically and thus, to a degree might not work with what is decided by the curriculum.

Studien behandlar missuppfattningar gällande tre begreppen platsvärde, tallinje och storleksordning inom ämnesområdet tal i decimalform. Syftet för studien är att genom en läromedelsanalys undersöka vilka aspekter av missuppfattningar som motverkas i fyra olika läromedel för den svenska årskursen 5. Ett konceptuellt ramverk används i studien där begrepp sammanlänkas för att förstå ett fenomen, som i denna studie avser missuppfattningar. Metoden som har använts är läromedelsanalys där det genomförts både kvantitativa och kvalitativa analyser av läromedel. De läromedel som har analyserats i studien är: Mitt i Prick Matematik 5A, Koll på Matematik 5A, Matte Direkt-Borgen 5B och Pixel Matematik 5A. Resultatet visar en variation av erbjudanden där samtliga läromedel motverkar missuppfattningar gällande tal i decimalform i olika utsträckning. En slutsats utifrån studien är att läromedel kan vara en möjlig resurs för arbete med tal i decimalform men förutsätter ämnesdidaktiskt medvetna lärare i undervisningen. / The study deals with misconceptions connected to the three concepts place value, order of magnitude and number line in the mathematical field of decimal numbers. The purpose of the study is to investigate, through a learning material analysis, which aspects of misconceptions that are counteracted. The learning material analysis is based on four different learning materials for the Swedish grade 5. A conceptual framework is used in the study where concepts are linked together to understand a phenomenon, in this study misconceptions. The method that has been used is learning material analysis where both quantitative and qualitative analysis of learning materials have been done. The learning materials that have been analysed are: Mitt i Prick Matematik 5A, Koll på Matematik 5A, Matte Direkt-Borgen 5B and Pixel Matematik 5A. The result shows that all teaching materials contributes to counteractions of misconceptions in different ways. A conclusion based on the study shows that teaching materials are a possible resource for the education of decimal numbers in combination with didactical knowledge.

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