Radio Frequency Identification, RFID, is a convenient way to enable contactless identification which does not require any physical nor optical contact. As with any radio-based communication the signal can be intercepted, thus making the technology vulnerable to several kinds of attacks. Interception of communication is not the only threat. Since RFID tags might contain personal information or information that will grant the owner access to secure areas, skimming and spoofing attacks are also major threats against this technology. In this thesis report,  the perspective of an adversary is portrayed in an RFID-enabled environment by presenting where RFID is used and how it could be abused.

Mobile application demands a lot of attending to the program code. There are lots of different development platforms that can be used for development. Not only for the specific operating system there are also lots of different cross-platforms that should minimize the amount of program code. This report is comparing the way of creating an android application in the cross platform Xamarin versus in the platform Eclipse using the Android plugin. It contains a part about the architecture of Android and its functions.

The purpose of this report was to investigate what characterizes a good psychosocialwork environment, and whether it may have impact on a vessel's safe voyage. Thisreport is proposed to increase the understanding of what creates a good psychosocialwork environment and its potential effect on safety at sea. In order to find out thesuccess factors for a good work environment group interviews were conducted in socalledunstructured focus groups. During these conversations, the participants discussedfreely by the question "what is a good psychosocial work environment for you?? Thesuccess factors were thereafter applied on selected accident reports, to investigate theextent to which they were represented and taken into account.The results of the study show three categories of factors: colleagues, communicationand competence, where colleagues are the main contribution to a good psychosocialwork environment.

CEEQUAL är ett klassningssystem utvecklad av ICE, den brittiska Institutionen för Civilingenjörer, för att bättra på anläggningsbranschens sociala, ekonomiska och miljömässiga hållbarhetsarbete. Systemet utvecklades år 2003 och användes fram till år 2011 endast i Storbritannien och Irland. År 2011 utvecklades en internationell version för organisationer som är intresserade av att certifiera projekt i andra delar av världen.Syftet med rapporten är att utvärdera konsekvenser för ett projekt som skall miljöcertifieras. Detta sker med hjälp av tre fallstudier från Skanska Sverige AB:Projekt Skarplöt, exploatering av en åkermark i Västerhaninge.Projekt Folkparksvägen, ombyggnation av en 1500 meter vägsträcka.Projekt Tyresövägen-Simvägen, en avsmalning av Tyresövägen från  motorvägsstandard till stadsväg.          Målet med rapporten är att:Identifiera förbättringsåtgärder för att främja hållbarhet och resurseffektivitet i produktion.Uppskatta vilka resurser förbättringsåtgärderna för certifiering kräver.Resultat från fallstudierna visar att Skanska har väl inarbetade rutiner i företagets ledningssystem, dock finns det förbättringspotential som kan uppnås med integrering av CEEQUALs krav i dagens arbetssätt.Merkostnaden av förbättringsåtgärderna består mestadels av tjänstemannatid för ett utökat samhällsengagemang, planering och bevakning av åtgärder som främjar hållbarhet samt insamling av bevismaterial för certifiering.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

Problem: This report concerns how the students of Södertörn högskola values physical papers. Even though technology have made it possible to digitalise documents, students today print and copy documents more then ever before. It will examine what the students finds valuable in physical papers and why they choose to print a document they just as well could read and manipulate via a computer.Method: This report consists of an empiric study, in form of a web poll and of a number of interviews. Furthermore earlier studies on the matter will be taking in consideration during the analysis.Results: The study shows that the students of Södertörns högskola values physical papers highly. The students choose to print a document since they find that it is easier to read, to make notes and that a printed document is easier to use on the move, rather then using a computer..

Embedded Systems Lab at Umeå University is currently part of a research project with the purpose to examine the behavior of dairy cows inside a barn. Each cow needs to be tracked with a precision of 50 cm, and since GPS-technique has poor functionality at indoor environments, an indoor positioning system needs to be developed.Embedded Systems Lab has already developed an indoor positioning system using IR-light and radio, but since this system demands extensive infrastructure and is rather expensive, an alternate positioning system using ultrasonic pulses and radio is being examined.In this report the range, beam angle and current consumption of ultrasonic transmitters- and receivers are investigated. Three different driver stages for the transmitter is tested, and two amplifier solutions for the receiver. The report also describes how the length of the transmitted ultrasonic pulse affects the received signal, accessibility of a ?shadowed? signal, and the effect of different sound frequency..

Vikaholm är en fantastiskt trevlig plats med många fina natur-, kultur-, och rekreationsvärden. Platsen gränsar till stadsdelen Teleborg i södra Växjö. Examensarbetet beskriver hur det är möjligt att inrätta bostadsbebyggelse i ett sådant område utan att förstöra dess stora värden. Arbetets intention är istället att bostäderna skall integreras i platsens stora värden och därmed göra platsen mer tillgänglig för flera av stadens invånare..

Radio Frequency Identification, RFID, is a convenient way to enable contactless identification which does not require any physical nor optical contact. As with any radio-based communication the signal can be intercepted, thus making the technology vulnerable to several kinds of attacks. Interception of communication is not the only threat. Since RFID tags might contain personal information or information that will grant the owner access to secure areas, skimming and spoofing attacks are also major threats against this technology. In this thesis report,  the perspective of an adversary is portrayed in an RFID-enabled environment by presenting where RFID is used and how it could be abused.

"? en utveckling som tillfredsställer dagens behov utan att äventyra kommande generationers möjligheter att tillfredsställa sina behov".Så definieras enligt Brundtlandkommissionen begreppet hållbar utveckling. Det handlar om att företag låter balansera ekonomiska, sociala och miljömässiga frågor i sin verksamhet. Tre ansvarsområden som på senare tid kommit att spela en allt mer betydande roll i såväl företag som samhälle. I Sverige lyder våra statligt ägda bolag under direktiv att redovisa sitt beaktande av ovanstående ansvarsområden i form av en hållbarhetsredovisning vilken dessutom ska kvalitetssäkras av oberoende tredje part.Studien syftar till att beskriva och förklara vilka upplevda fördelar ovanstående direktiv frambringar.

In this bachelor thesis, diagnostic methods for one of Siemens stem inlet control valves have been developed. The work has taken place during ten weeks at Siemens Industrial Turbomachinery AB in Finspång. The company produce steam- and gas turbines and also provides service and maintenance. The purpose with this project has been to develop diagnostic methods that oversee the health of the control valves. By using the developed methods you will know when it?s time for maintenance.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.