Good concurrent software is a necessity today, as concurrent architectures have become commonplace. Consequently, a good programming experience in languages designed for concurrency becomes essential. This project provides the design and implementation of a set of features in the Encore programming language, which is designed for concurrency. The aim is to provide increased convenience and efficiency in the programming experience. The project resulted in two new language features in Encore: default field values and default parameters. Implementation of the new features was done by modification/extension of the Encore compiler. A majority of surveyed participants preferred the new features over the old syntax. / Bra parallelliserbar mjukvara är en nödvändighet idag när mångkärnade arkitekturer blivit vanligt. Därmed blir även utvecklarupplevelsen i programmeringsspråk designade för samtidighet viktig. Detta projekt utformar och tillhandahåller genomförandet av en uppsättning syntaxfinesser i parallellprogrammeringsspråket Encore. Syftet är att öka effektivitet och bekvämlighet för utvecklaren. Projektet resulterade i två nya syntaxfinesser i Encore: fältinitiering och standardvärden på parameterar. Dessa syntaxfinesser implementerades genom att modifiera Encore-kompilatorn. En majoritet av undersökningsdeltagarna anser att de nya syntaxfinesserna är bättre än dess föregångare.

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This project concerns the development of a solution for visualizing and storing different types of data using a single board computer. This replaces a system that currently uses Windows-based laptops. To do this, a suitable single board computer has been selected, with price and performance in mind. The one selected is the Raspberry Pi, due to it having good performance for its cost and the external stakeholder desiring its use. For database functionality a MySQL system is implemented because of its network and concurrency capabilities. In terms of results, the external party's performance requirements are that data from sixty different sensors must be read and saved once per second. These have been met. For visualization, various frameworks and related tools are implemented, and the user interacts with the system through a touch interface. / Detta projekt behandlar utvecklingen av en lösning för att visualisera och lagra olika typer av data med hjälp av en enkortsdator. Detta ersätter ett system som använder Windowsbaserade bärbara datorer för denna funktionalitet. För att möjliggöra detta har en enkortsdator valts, i detta fall Raspberry Pi. Detta för att den har bra prestanda för priset samt att den externa intressenten önskat detta. För databashantering har en MySQL server implementerats på grund av dess nätverks- och paralellprestanda. Vad gäller resultat så har den externa partens krav uppfyllts. De viktigaste är att data från sextio kanaler läses och lagras varje sekund.För visualisering har redan existerande bibliotek implementerats i enlighet med projektspecifikationer i ett touchgränssnitt.

The Construction sector is the industry that generates the second most waste afterthe mining industry in Sweden. Therefore, reducing waste is a primary issue for thesector. JM AB have a new environmental goal to reduce waste. The companyseparated their waste into fractions in order to study them individually. This reportis the result of a survey of the waste fraction facade plaster. The investigation ismade for thick plaster that is "scrubbed" with a board with nails in order to get theproper appearance (Swedish: "rivputs"). The purpose of the study is to see how much waste the plaster process representsand what it will take to reduce this fraction of the waste. Interviews, study visits anda literature study was made collect information about the process. Calculations shows that about 20% of all plaster materials are thrown away. Animportant aspect is that approximately 18% of the plaster materials is "scrubbedaway" to get the right structure of the facade. Therefore, a new material or a newmethod to apply the plaster would be required to eliminate this 18% of the waste. About 2% of all plaster material turns into waste when cleaning the pipe that is usedto apply the plaster on the wall. Shortening of the pipe would reduce waste andaffect the method for the labors who work with plaster at the construction site. Toimplement such a change at JM AB, an investment is required.

According to a number of reports conducted by various authorities and corporations we have concluded that a great number of swedes have difficulties saving money, especially students. One aspect is that the difficulty to save is due to the fact that these persons do not have an overview of their finances. We have therefore created an application with the purpose to help students keep track of their expenses. Through visualisation of data representing the users history of expenses, we hope to provide a better overall picture of how their money is used. This in order to increase the users awareness of these expenses. This infers a categorization of which ones that are unnecessary and can be ruled out and which are necessary and can not be ruled out, a categorization the user may do hirself. The application has been tested and evaluated by a test group of 8 people where everyone believes, to a certain extent, that MoneyManager has helped them gain a better insight into their own finances and what expenses they have. There are features that the majority of users are missing, especially an automatic entry of transactions. This is something we see as potential for an exciting future development of the application. / Enligt flera rapporter utförda av olika myndigheter och företag har ett stort antal svenskar svårt att spara pengar, inte minst studenter. En aspekt är att uteblivandet av sparande beror på att dessa personer inte har en övergripande koll på sina utgifter. Vi har därför skapat en applikation med syfte att hjälpa användaren hålla koll på sin ekonomi. Genom visualisering av data som representerar användarens historik av utgifter ger det en helhetsbild av hur pengarna används. Detta för att hos användaren öka medvetenheten om sina utgifter. Det innebär en kategorisering av utgifter beroende på om de upplevs som onödiga, en kategorisering användaren själv får göra. Applikationen har testats och utvärderats av en testgrupp på 8 personer där alla till en viss mån anser att MoneyManager har hjälpt dem få en bättre insikt i sin egen ekonomi och vilka utgifter de har. Det finns funktioner som majoriteten av användarna saknar, framför allt automatiskt införande av transaktioner. Detta är något vi ser som en spännande utvecklingspotential för applikationen.

Society stores information in IT-systems in order to streamline day to to day tasks. In order to make sure that the information is legitimate and up to date, synchronisation between several locations is needed. We have chosen to synchronise and automate time reports between the time report system Timesheet and invoice system Fortnox for the company Consoden. This has been done with the purpose of streamlining the work for the administrators in charge of invoices. The project has also focused on the integration process between some arbitrary system and Fortnox. Before this project two administrators worked a minimum of five days a month with manually synchronising time reports from projects and creating invoices for them. The process of synchronizing information regarding clients, projects and suppliers have been fully automated in order to ease the creation of invoices. / I dagens samhälle sparas information i IT-system för att effektivisera dagliga arbetsuppgifter. Därför ökar pressen på att nödvändig information finns tillgänglig och i synkroniserat tillstånd på flera platser. Vi har valt att synkronisera information nödvändig för fakturahantering mellan tidsredovisningssystemet Timesheet och bokföringssystemet Fortnox. Syftet har varit att underlätta fakturahantering för företaget Consoden som haft två personer som arbetat minst fem dagar varje månad med att manuellt hantera information nödvändig för fakturering. Projektet har även fokuserat på själva integrationsprocessen mellan något godtyckligt system och Fortnox. Processen att synkronisera information gällande klient-, projekt- och leverantörsuppgifter har blivit fullständigt automatiserad.

Sound Dimension ämnar att starta upp utvecklingen av nästa produkt till deras varumärke aiFi. Idag är aiFi en smart högtalare som när flera placeras tillsammans skapar ett utbyggnadsbart ljudsystem. Sound Dimension söker nu nästa produkt till aiFi familjen och vill ha hjälp att ta fram ett koncept för denna. I kombination med utveckling av det nya konceptet vill de även ha hjälp med att identifiera problem kring användandet av dagens produkt och få förslag på hur dessa kan förbättras.   I rapporten behandlas produktutvecklingsprocessen av ett nytt koncept i kombination med användarstudier och implementering av förändringar i ett redan styrt formspråk. Projektet är ett examensarbete vid Karlstads universitet för högskoleingenjörsprogrammet i innovationsteknik och design, MSGC12. Projektet motsvarar 22.5hp och utförs vid fakulteten hälsa, natur- och teknikvetenskap. Rapporten är skriven av Wilhelm Lidström, handledare industridesigner Kristina Gullander och examinator professor Leo De Vin.   Under processen har skiss och modellarbete använts flitigt för att dokumentera processen och för att testa och visualisera olika idéer. Modeller har byggts både för att verifiera former och proportioner samt testa funktioner. Det slutliga konceptet presenteras i skiss, 3D-format med renderade bilder samt i form av en enkel fysisk prototyp.   Det slutliga konceptet utgår från att uppfylla den kravspecifikation som framkommit under projektet. Kravspecifikationen har skapats utifrån de krav och önskemål uppdragsgivaren hade på projektet, samt en gedigen förstudie innehållande en litteraturstudie kring intressanta områden projektet berör. Ett stort antal intervjuer genomförs med fokus på hur dagens produkt uppfattas och användarvänligheten, både utifrån befintliga användare och personer som aldrig tidigare varit i kontakt med produkten för att få en så bred bild som möjligt av uppfattningen om dagens produkt.   Resultatet är ett koncept med en form och storlek som gör den kompatibel med dagens produkt. Manöverpanelen har fått en ny position och ett förenklat gränssnitt vilket gör produkten tydligare både ur ett semantisktpersketiv och användarsynpunkt.

The silver birch (Betula pendula Roth) and the downy birch (Betula pubescens Ehrh) are the most common broadleaved species in Swedish forests. Both species have a lot in common in appearance and are often misleadingly referred to simply as ”birch”. They have however different requirements and possibilities to grow on different sites. Downy birch grows well on moist and wet sites thanks to the fact that its roots are adapted to these type of environments. Silver birch has on the other hand the ability to grow on dry sites. Both species prefer soil moisture class somewhere in between wet and dry.   To be able to promote the correct birch species on each site, it is important to identify the two species during the clearing process. Both buds and shoots are characteristic for each species why those parts can be used to separate them. Buds from silver birch are pointy shaped and those from downy birch are round shaped. When it comes to shoots the silver birch has nubby shoots and the downy birch has hairy shoots.  The aim of this study was to a) investigate the occurrence of each of the two birch species on sites with different soil moisture class, b) investigate if it was possible to visually identify each species during clearing with a clearing saw and c) to find out if and how the height of the stand influenced the possibility of species identification. This study shows that it is possible to identify the two species. It is however important to start the clearing process at an early age, since the parts of the tree used for identification otherwise will grow beyond sight.  This is particularly important on moist sites, where both birch species regenerate willingly. In the long run, downy birch will have higher ability to develop high quality timber on these sites. In order to do that, the right stems must be chosen at each clearing occasion. It is important to start the clearing process at an early age, since the characteristic parts of the tree otherwise will grow beyond sight.  Keywords

This work has been carried out on behalf of and together with Falu Energi och Vatten. The purpose of the work was to study under what circumstances it´s economically profitable to expand the district heating network to residential area with electrical heating compared to keep it as it is today. The expansion of the district heating network will also be simulated to investigate if the existing dimensions of the network are big enough to provide enough heat after the expansion. In this work three different areas in Falun city area has been studied. Two areas (Ritar-, and Skrivarvägen and Digertäktsvägen) where there is no district heating today, and one area (residential district Haraldsbo) where a part of the area is connected to the district heating network and some are not. The study has been performed under the assumption that the production in the facilities are sufficient for providing also the new areas with heat without any need of new facilities. Another limitation that has been set is that only fuel costs will be taken into account in the production costs for district heating. From the calculations of the net present value for the three different areas with expansions of the district heating system, compared to the calculations of the net present value of keeping it as it is today showed that Ritar-, and Skrivarvägen will need to have at least 30-35% households connected to have the same or higher net present value. The corresponding values for Digertäktsvägen is 35-45% connected households and för Haraldsbo around 15% connected households. It was also examined how the connection rates influenced the prize for the households, if the net present value was going to be equal or bigger than for the present situation without any connection cost.  It was found that for Harladsbo where there already are some households with district heating only 15% of the today not connected needed to sign up for district heating and in the areas that does not have any district heating today (Ritar-, and Skrivarvägen and Digertäktsvägen) 50-70% needed to sign up for district heating. “Falu Energi och Vatten” calculations today demand a payback time of 12 years of the investment in the district heating infrastructure. To get that 30 -40% needed to connect in Ritar-, and Skrivarvägen and Digertäktsvägen, on Haraldsbo the connection rate had to be over 15%. The results from the simulations made on the district heating infrastructure showed that on Ritar-, and Skrivarvägen the network is sufficient to supply the whole area with heat at the dimensional outdoor temperature of -23°C, also with 100% connections on Haraldsbo the pressure difference, flow speed and pressure gradient are within the permitted span. Simulations of Haraldsbo showed that with a connection rate of 100% the pressure difference got to low in one corner of the area. If the connection rate instead is 50% at Haraldsbo the area manage to keep the pressure difference at an approved level of 160 kPa, if we then also connect 100% at Ritar-, and Skrivarvägen, the pressure difference sinks down to 100 kPa which is the absolute lowest that is permitted.