Naturens mineralresurser är till viss del utnyttjade och uttömda, och framtiden är osäker och omdebatterad. Ingen vet säkert exakt hur mycket metall som finns kvar i jordskorpan, hur mycket som går att utvinna eller hur länge resurserna kommer att räcka. Samtidigt har vi byggt in rena metallådror i våra städer i form av elkablar, telekablar och fjärrvärmerör. Många av dem används givetvis, men många är också uttjänta och urkopplade, och därmed tillgängliga för återvinning.Syftet med denna studie är att klarlägga hinder, drivkrafter och möjligheter för metallåtervinning av urkopplade infrasystem i mark inom lokala el-, tele- och fjärrvärmenät i Sverige. För att uppnå detta tillfrågades Sveriges tio största ägare av underjordiska lokala elnät om bl.a.

Fortum has in a pilot project installed metering equipment with wireless communication in secondary substations in Stockholm. So far, the collected data are used only in specific projects.This master thesis was carried out at Fortum Distribution AB in Stockholm during 2013. The purpose of this study is to simplify and enhance the use of data in for example network planning process, by giving suggestions on how data can be managed and giving examples of analyzes that collected data can be used for.The electricity meter which Fortum has installed is a EDMI-Mk10A which is set to measure max/average/min values with a one hour time resolution of the following parameters: voltage (per phase), current (per phase) andactive power and active and reactive energy.In order to analyze the collected data an analysis tool is required. During this thesis two customized tools in Microsoft Excel have been developed, one for sorting data and one for analyzing.One aim of the thesis is to show examples of what collected measurement data can be used for. This work shows an example of analysis of active power, power factor, voltage, occurrence of interrupts and the relationship between outdoor temperature and power.This master thesis has among others resulted in the following advice: Expand the number of secondary substations with measuring equipment.

The purpose of this thesis is to present and describe which criteria, according to the systemfamily Configuration Management, should be met when developing a CM-tool to handlemigration data.ACT is a tool developed by Microsoft to gather information about, analyze, test and mitigateapplications in a network when migrating the IT-infrastructure of an organization to a newoperating system. The organization that is being studied wants to present the data about theanalyzed applications in such a way, that a customer can choose what to mitigate and migrate.The goal is therefore to develop a prototype (CM-tool) that will present this data.The study has shown that ACT lacks certain requirements stated by the organization when itcomes to presentation. But when it comes to the rest of the functions, ACT performs as expected.The investigation resulted in specifications and technical solution for the new CM-tool. CMcriteriafor migration data was put forth and parts of the prototype were also developed..

Denna rapport behandlar prestandaskillnader vid överföringar med Ajax och WebSocket, samt webbläsares kompabilitet med WebSocket.Ämnet kändes relevant då fler och fler webbsidor börjar använda sig av dessa tekniker för att hämta och skicka data i realtid.Undersökningen genomfördes genom att en testapplikation skapades där data kunde överföras med respektive teknik, varpå tidsåtgången för överföringen mättes och presenterades.Resultatet visar att WebSocket har klara fördelar mot Ajax när små mängder data överförs, samtidigt som Ajax visade sig vara snabbare vid upprepade överföringar av större mängder data.Undersökningen visade även att stöd för WebSocket saknas i flera webbläsare, varför WebSocket ännu inte är redo att användas fullt ut..

Purpose: The main purpose of the thesis is to examine the consequences of applying IAS40 on the Swedish real estate companies? annual reports. How does its application affect the companies? stockholders? capital and how do the companies solve the problems that occur due to the application of this standard.Method: The authors use both the qualitative and quantitative approaches to process the thesis. The primary data comprises of hard data in form of annual reports and the secondary data consists of the soft data as direct interviews and email interviews.Theory: There aren?t any theories on the subject.

This report presents the results of the tests of data rate and signal strength that I have conducted. The tests have been performed in the municipality of Arvidsjaur, Sweden. The report also contains the conclusions I have drawn from the results as well as an introduction to radio and the technology used in the nets that have been testedThe equipment used is:LG G2 cellphone used to test Telias 3GHuawei b593s-22 3G/4G router used to test Tele2s 3G/4GMobile Broadband Gateway R-90 used to test Net1s CDMAThe data rate has been tested with bredbandskollen (www.bredbandskollen.se). The signal strength(RSSI) has been read in the configuration menu of the broadband routers as well as in the cellphone.The conclussions drawn:Net1s net appears to be more used compared to its capacity than the other netsTele2s net has a high and even data rate where it?s signal strength is sufficient.

Denna rapport undersöker olika tekniker för att spara data lokalt i webbläsare, föratt möjliggöra att webbapplikationer kan användas i webbläsare närinternetanslutning saknas, och för att minska mängden data som behöver överförasmellan webbserver och webbläsare.Undersökningen genomförs genom att en befintlig webbapplikation först undersöksför att avgöra vilka datamängder som behöver sparas i webbläsare.Sedan jämförs olika teknikers egenskaper och tidsåtgång för att spara data av olikastorlekar.Resultaten från undersökningarna visar att stödet i webbläsare för FileSystem APIoch IndexedDB inte är tillräckligt för att teknikerna ska användas i publikawebbapplikationer, varför HTML5 Application Cache i kombination med WebStorage är det bästa alternativet att använda för att möjliggöra attwebbapplikationer kan användas utan internetanslutning..

Idag skapas och lagras enorma mängder data, samtidigt som endast en liten del av datan analyseras och används. Big data är ett begrepp som cirkulerat i flera år, men på senare år har det fått allt större innebörd. Allt fler företag börjar få upp ögonen för big data, samtidigt som få verkligen vet hur det ska användas. Vissa frågar sig till och med: finns det någon affärsnytta? Med fokus på detaljhandelsbranschen undersöker vi huruvida det finns en affärsnytta med big data, och framförallt vilka utmaningar och möjligheter som finns kopplade till det.

This report presents the results of the tests of data rate and signal strength that I have conducted. The tests have been performed in the municipality of Arvidsjaur, Sweden. The report also contains the conclusions I have drawn from the results as well as an introduction to radio and the technology used in the nets that have been testedThe equipment used is:LG G2 cellphone used to test Telias 3GHuawei b593s-22 3G/4G router used to test Tele2s 3G/4GMobile Broadband Gateway R-90 used to test Net1s CDMAThe data rate has been tested with bredbandskollen (www.bredbandskollen.se). The signal strength(RSSI) has been read in the configuration menu of the broadband routers as well as in the cellphone.The conclussions drawn:Net1s net appears to be more used compared to its capacity than the other netsTele2s net has a high and even data rate where it?s signal strength is sufficient.

Construction of an autonomous wind station was a project with the goal of creating a product that could collect wind data from a sensor and then transfer this data to a server wirelessly over the GSM network. The device would be powered by batteries and solar cells and function fully without requiring external power supply. This required that a small computer was constructed and programmed to store and send data at predetermined cycle times and programming of a server that received the sent data. The project also required optimization of power consumption and dimensioning of solar cells and batteries based on this. The construction of this station demanded research both for the selection of hardware and programming software. The computer was based on a microcontroller and a GSM module that sent the data over the 2G network.

Vid storskalig rasbrytning är rasflödet en mycket viktig del för gruvans produktivitet. Rasflödet påverkar hur mycket av malmen som utvinns i varje produktionssalva, dessutom ger ett jämnt rasflöde utan avbrott en effektiv produktion. Designen av produktionssalvorna görs till stor del med erfarenhetsmässig bakgrund. Kunskapen om hur olika parametrar inverkar på rasflödet och vilka parametrar som har stor betydelse är i nuläget relativt liten. Detta examensarbete syftar till att ge en ökad förståelse för hur en omgivande spänning samt mothållande material inverkar på fragmenteringen av inspända bergprov i modellskala och omgivande massors kompaktering.

Energy-wise houses in Järinge - technical follow-up The company JM built energy-efficient houses in Tensta in Stockholm. They have built a total of 16 houses divided into two parts of A-houses and B-houses. The buildings are an attempt by JM to minimize energy-use of the buildings without affecting the comfort and living standards. The project aims to examine the data for the 16 houses on the basis of data and produce a report showing how the buildings worked through a technical perspective. JM approximates that the purchased energy will not be higher than 95 kWh/m2 per year.

The dependency of fossil fuels has to decrease in order to reduce emissions of green house gases. Wind turbines generate electricity with low environmental impact, but the local opinion in Sweden is sometimes an obstacle to new developments. The acceptance of nuclear power increases at the same time. Mining uranium is once again on the agenda and prospectors are currently drilling for uranium. This cross-sectional study deals with acceptance of wind farms and uranium drilling.

Abstract The subject of this thesis is the priority rules that apply in connection with mining activity. Already back in the 1800s, there were rules in the so-called Lego Charter concerning protection of workers, mainly servants. When the first modern trade union was founded in the 1870s, also developed a collective agreement. These agreements were the order of priority clauses had to intend to ensure employees' working lives. Exceptions had to be done by ensuring that individual employees' dependents. In 1974 the Act on employment entry and had intended to protect older workers.

Speedledger is a company that is working to automate electronic accounting for businesses, organizations and associations.In the current situation bank data is sent from the users internet bank to Speedledger via a virtual printer driver. The driver transforms the web page into a PDF and sends it to a server for interpretation.The problem is that PDF is not created for this sort of data transfer and makes the interpretation of data is very problematic.The goal of the thesis is to study whether there is a possibility to develop a browser add-on that can retrieve information on the customer's banking page and send it on to Speedledgers server for interpretation. My task was to implement a add-on for one of the three major browsers Mozilla Firefox, Google Chrome or Microsoft Internet Explorer, and then study the possibility of implementing it to the other two by reading the documentation.What I concluded was that it is possible to implement for all the three browsers. However, the techniques will differ slightly when developing these add-ons.  .