The purpose of this thesis is to examine and present the oportunities of solvingcontrol problems using Modelica. This is done by creating some demonstrationexamples with exercises. These examples should cover as many types of controlproblems as possible. The exercises are aimed for people with basic knowledgein modeling and automatic control engineering but with little or no knowledgein Modelica. There are different types of Modelica implementations and the onesused in this thesis are OpenModelica and MathModelica..

This study evaluates the retention of nitrogen and phosphorus in four newly constructed wetlands in the municipality of Falkenberg, Sweden. The four wetlands have been selected because they have been specifically constructed with the aim to reduce nitrogen and phosphorus in farming areas. The process of selecting the specific wetlands has been done in collaboration with the county administration in Halland. Through field studies in collaboration with the landowners where the wetlands are sited, the areas that provide the wetlands with water were determined. The size of these drainage areas were determined in a GIS computer program. The type of land use within the drainage areas was also determined.

The project explores the possibilities of using additive manufacturing (3d-printing) to build architecture. Through a combination of theoretical research and practical experiments a building system has been developed which has the capabilities to create houses with great geometric flexibilities to a affordable price today. The construction system Perimeter is demonstrated in a pavilion situated at Norra Djurgården in Stockholm. .

Rapporten avhandlar modelleringen av en befintlig industribyggnad och dess tillvägagångssätt. I rapporten har även utredningar och studier granskats kring neutrala filformat, laserscanning och byggprocessen i allmänhet då dessa omnämnda ämnen går hand i hand och utgör fundamenten i modellerings-projekt. Projektet som författarna modellerade var det befintliga renseriet på Södra Cell i Mönsterås. Intervjuer som kontinuerligt utförts med berörda personer framgår under genomförande delen..

Studiens syfte är att belysa teknikens mångfald samt att analysera hur man kan väcka barns intresse för teknik och hur man kan skapa inlärningstillfällen i förskolan. Undersökningen bygger på en litteraturstudie. Forskning och teknikprojekt har studerats. Resultatet visar att framför allt förebilder, teknikmedvetenhet och undervisningsmetod har påverkan på barns teknikintresse. Vidare behöver barn komma i kontakt med gammal, enkel och synlig teknik, vilket man kan utgå ifrån vid planering av förskoleverksamheten i teknik.

The aim of this master thesis was to create a dynamic model for the processes in a solid fuel boiler of the moving grate type. Another aim with the model was to keep it as simple as possible but still able to catch the dynamics of the processes in the bedplate of the boiler. The creation of the model had its origin from drying and combustion equations used in earlier modeling work of boilers. The represented model has been used to simulate different kinds of disturbances in a boiler and different ways to control the boiler. These tests show that controlling a number of parameters in the bed of the boiler is an effective way to keep the grate stable during disturbances.

This study explores Sweden's climate change denial by analyzing the spoken-word discourse of its countermovement, focusing on digital media content from Swedish parliament member Elsa Widding with an aim to provide empirical insights into the discourse of Sweden's Climate Change Countermovement (CCCM). Questions guiding this study are: What are the most prevalent topics and themes related to climate change denial and skepticism? How do they align with established categories of climate change denial, shaping the overall narrative? What mobilizing ideas and meanings are present, how are they shaped, and how do they contribute to the movement's goals? The material consists of Elsa Widding's complete audio-based "movement texts'' from 2019-2023, including YouTube content, podcasts, and appearances on Riks, totaling over 2000 minutes of audio transcribed into text via AI technology. Methodologically, this study adopts a mixed-method approach which blends computational pattern detection, topic modeling, clustering, and spatial relationship mapping techniques, along with qualitative content and framing analysis. Theoretically, the study employs a perspective which uses epistemic and response skepticism to examine climate change denial, viewing it through the lens of countermovements and social movement framing. The study's main contribution lies in the enablement of comprehensive analysis of a large audio-based dataset, achieved by leveraging recent AI advancements for reliable audio-to-text conversion combined with topic modeling.

This thesis treats Building Information Modeling, BIM, in the production stage. Brieflydescribed BIM is virtual model of a building object where all information about theobject is gathered. All the involved operators in the construction project have access tothe model and can gather or share information about the project. There are several waysto apply BIM in the production stage. This thesis primarily deals with visualization of theobject, preparation and planning, the ability to take amounts from the model andcoordination and clash control.The basic issue was highlighted by Byggdialog AB.

It is not uncommon for math difficulties and reading difficulties to occur simultaneously. Despite this, math and reading difficulties are thought to have different cognitive profiles where math difficulties are linked to number sense; an innate ability to understand, approximate and manipulate both quantities and numerical information, whereas reading difficulties are linked to phonological ability; an innate ability to understand, create representations of and manipulate phonological information. A possible link between the difficulties is that phonological abilities also could affect mathematical ability. Support for this comes from studies where comorbid math and reading difficulties are associated with more severe difficulties in arithmetic ability compared to those with isolated math difficulties. The purpose of this study is to examine whether isolated math difficulties, isolated reading difficulties and comorbid math and reading difficulties can be linked to deficits in number sense, phonological ability or both of these, and whether comorbid math and reading difficulties differ in performance in mathematical tasks compared to isolated math difficulties for children in second grade.

Examensarbete är utfört för Gothia System Office AB och innebar att analysera och ta fram ett exempel på hur parallellpublicering fungerar. Parallellpubliceringsexemplet är baserat på Oracle 8.1.7 databas som är implementerad med testdata via script. Själva Parallellpubliceringsprogrammet är skrivet i Java och dess uppgift är att publicera data från databasen med olika utseende beroende på vad man skall använda det till. Utmatning av data från databasen sker via XML som sedan tillförs ett XSL style sheet, eller bearbetas om, av Java-applikation för det slutgiltiga målet. Programvaran som används för att utveckla Java-applikationen är JDeveloper 3.2 och för att framställa dataanalysen, UML = Unified Modeling Language, så används Together 5.02..

Examensarbete är utfört för Gothia System Office AB och innebar att analysera och ta fram ett exempel på hur parallellpublicering fungerar. Parallellpubliceringsexemplet är baserat på Oracle 8.1.7 databas som är implementerad med testdata via script. Själva Parallellpubliceringsprogrammet är skrivet i Java och dess uppgift är att publicera data från databasen med olika utseende beroende på vad man skall använda det till. Utmatning av data från databasen sker via XML som sedan tillförs ett XSL style sheet, eller bearbetas om, av Java-applikation för det slutgiltiga målet. Programvaran som används för att utveckla Java-applikationen är JDeveloper 3.2 och för att framställa dataanalysen, UML = Unified Modeling Language, så används Together 5.02.

The aim with my master thesis is to develop and test the applicability of methods to quantify and map solute advective travel times and pollutant transport at the catchment scale. Such quantification and mapping can increase the understanding of catchment-scale pollutant transport in general and contribute to the identification of the main sources of water pollution and the most efficient measures to reduce such pollution. The study area is the catchment of Oxundaån, about 20 km north of Stockholm. For detailed GIS modeling of water flow and catchment-scale contaminant transport in water, I´ve used new high-resolution elevation maps, land cover maps and soil maps combined with other available relevant data..

The purpose of this study is to facilitate sustainable building by the use of BIM. The goal is to determine which aspects of sustainable building, which can be analyzed mainly with BIM tools, but also other aids.The study is based on literature studies and interviews. The literature review examines aspects important for sustainable building by studying environmental certification systems applicable in Sweden, as well as the BIM tools available on the market to analyze these aspects. The literature also includes the concepts of BIM and sustainability in order to provide a clearer view of its meaning. The interviews have brought the study's overall understanding of the industry and guidance on the subject.The results are presented in a table, where the aspects relevant to sustainable building are listed.

This paper presents a study of the computer game ?Minesweeper?. The aim of the game is to search through a rectangular area of mined squares without hitting any mines. By using a strategy based on making every operation as safe as possible, series of the game have been simulated. The size of the playground is four times four squares.

Vid objektorienterad systemutveckling är det viktigt att man genomför en analys- och designfas, dels för att man inom ett utvecklingsteam lättare ska kunna visualisera hur ett system är tänkt att bli och dels för att kunna fånga och åskådliggöra kundens krav. Till sin hjälp i dessa faser har man metoder/processer och modelleringsspråk. Varje företag har i regel haft sin egen variant av ovan nämnda, men allteftersom kom kravet på en gemensam standard att bli oundvikligt. Sedan ett antal år tillbaka finns nu en standard. Trots det finns det säkert företag kvar som ännu inte antagit denna standard.