During the development of microwave based sensors such as radar target seekers, input signals are needed to verify the performance of the system. Therefore, a channel board has been developed by previous thesis projects at Saab Bofors Dynamics. It uses a technique called Digital Radio Frequency Memory (DRFM). The purpose of this board is to sample and digitally store radio frequency signals in order to reconstruct them after a certain delay.The aim of this thesis project was to use the channel board named above to construct a portable instrument for generation of stimuli signals. This assignment has been divided into two tasks: firstly, to construct and put together the hardware components and secondly, to implement a graphical user interface for the instrument.

Voice over IP (VoIP) is a relatively new technology that enables voice calls over data networks.With VoIP it is possible to lower expenses, and increase functionality and flexibility. FromSwedish Armed Forces point of view, the security issue is of great importance, why the focus inthis report is on the security aspect of the two most common open-source VoIP-protocols H.323and SIP, some of the most common attacks, and counter-measures for those attacks.Because of the level of complexity with a network running H.323 or SIP, and the fact that it hasyet to stand the same level of trial as of traditional telephony, a VoIP-system includes manyknown security-issues, and probably at present many unknown security flaws.The conclusion is that it takes great knowledge and insight about a VoIP-network based onH.323 or SIP to make the network satisfyingly safe as it is today, and is therefore perhaps not asuitable solution for the Swedish Armed Forces today for their more sensitive communications..

Outages in the electric grid can be costly for society. Because of this, reliability is one of the parameters used to regulate network companies. Reliability in electrical grids can be measured with SAIDI, system average interruption duration index, which for Fortum Distribution has increased in Stockholm?s distribution network (11 kV) in the early 2000?s.By using outage data for Stockholm from 2011-2013, sets of parameters to be used for reliability calculations in the network information program Tekla NIS were derived. Two different options for investment were then analysed: changing old cables with high fault frequencies, and installing automatic switching in distribution substations.

The aim of this project is to find a concept solution for a wireless transmitting system, installed to transmit data from a hydrophone of the ocean floor down by a wave power generator to the office on shore. The project is a literature review in which previous observations and tests are analyzed and put together to find a solution. The result was a comprehensive solution that includes an acoustic modem to transfer captured information from the bottom to the surface, wirelessly through the water. The information is then sent fron the surface on radio waves through the GSM network to the office on land. Between under and over water there are components to convert information between acoustic waves and radio waves, but also various types of modulation, such as amplitude and frequency modulation is required..

Radio frequency identification (RFID) is a versatile wireless technology usedworldwide. The fields of applications are many and its popularity constantlygrows due to smaller in size, better and less expensive components. RFID isused to identify, track or share information about an object using radio waves.This master thesis describes the process of designing and implementing ahandheld UHF RFID reader. The goal was to, based on a UHF RFID-chipdesign a fully functional, small in size and power efficient device. Amicrocontroller provides the user interface and is also used to control theRFID-chip and a Bluetooth device.

This master thesis has been carried out on behalf of Stoneridge Electronics AB and is an investigation ofhow intelligent switches can replace the traditionally used direct controlled switches. The concept ofintelligent switches is that the switches contain electronic identification components which, by connectingthem to a network, give the same function independent of the location of the switch. This infers anincreased flexibility and configurability which can be a great advantage in development, production andcustomization in the commercial vehicle industry. Especially in the current situation when commercialvehicle manufacturers provides more and more functions and dashboard configurations.LIN (Local Interconnect Network) is a network protocol introduced in 1999. It is a simpler and lower costcomplement to CAN (Controller Area Network) and is adapted for applications where the demands forbandwidth are lower, for example reading sensors and switchers.

The purpose of this study is to investigate whether Karlstad City Fiber Network visual elements in the form of a pair of speech bubbles fit into the organization's holistic external communication and branding. The study examines whether Karlstad City Fiber Network image of the organization and the speech bubbles match the stakeholders view and how the visual elements are perceived and recognized by stakeholders. The theory associated with the study is theories of corporate visual identity, image, identity and branding and visual communication. These three elements are important to be aware of when a generation of an effective external communications. Qualitative interviews with employees at Karlstad City Fiber Network and Karlstad municipality has undertaken to give an idea of ??what the organization wants to achieve and what their opinions are.

The aim with this thesis came out of a strong interest for Passage Retrieval. Our intention has not been to evaluate an IR-system. Instead our goal has been to analyze the result of indexing documents and their passages. We have been studying the weights of the different terms in the different indices, in comparison with other parameters like frequency, normalized frequency and the inversed document frequency. Further more we have been looking at how the weights are spread using for instance the standard deviation.

Compassion Focused Therapy är en integrativ transdiagnostisk behandlingsform som syftar till att öka self-compassion och minska skam och självkritik hos individer med psykisk ohälsa. Skam och självkritik har i hög grad identifierats hos personer med ätstörningar, som också ofta anses svårbehandlade. Denna studie syftade till att undersöka huruvida CFT kan vara ett behandlingsalternativ vid ätstörningar. En single-subject design med upprepade mätningar användes (n=5). Studien visade på tvetydiga resultat men indikerar att en del individer kan vara hjälpta av denna behandling.

The aim of this report is to analyse the use of the capacity at the CNC (computer numerical control) cutters and show how the level of set up time for these cutters at Stålöv AB. This assignment is concrete whereas there are no subjective questions to this matter and there are only cold figures presented.Production economy is getting more important as the competition hardens and there are several different ways to increase productivity and efficiency in a company. In order to increase productivity and efficiency work studies are used to, through an analysis, find developments in methods that result in improved work methods and to establish the time that are used. Increased production of different parts and customer driven production in combination with increased demands on rationalisation of capital have led to an enlarged interest for shorter set up times in the production.To point out the use of capacity and the set up time of the cutters at Stålöv AB we used frequency studies. Frequency studies are work measure methods based on random observations on predetermined events to calculate the relative occurrence of these events.

The aim of this paper is to examine the actualities of Information Practicefor single women whose parentage has been made possible through assistedreproduction, which places these parents in a norm-breaking position.Study issues related to parents? perceptions of information needs areinvestigated, as is the process of information retrieval and library usageas well as the obstacles and opportunities facing parents in search ofinformation related to their own family constellation. To this end, theoriesby Tom Wilson, Reijo Savolainen and Elfreda A. Chatman have been usedas a model of selection. Empirical data have been gathered from interviewswith eight single women, whose parentage has been made possible throughartificial insemination or IVF with sperm from an open or anonymousdonor.

ÖREBRO UNIVERSITYDepartment of Behavioural, Social and Legal SciencesProgram of social workSocial Work CC-essay in Social Work, 15 creditsAutumn term 2013The family is the only way back home? A qualitative study on staff?s view on family involvement in the treatment of adolescentsAuthors: Cakici, Nahrin and Claesson, SandraAbstractThe aim of this study is to investigate how the staff at residential treatment centers works to involve the family and the social network in youth?s treatment and how they experience that the involvement affects the young person. The aim is also to study the difficulties the staff experience in their work to involve the family and the social network. In this study, staff from two residential treatment centers in Sweden participated. The study is conducted based in on qualitative method in which four semi-structured telephone interviews and one group interview have been conducted.

The aim of this thesis is to study a job-searching process and elements that affects it. The elements I have focused on are gender, class and social network. The study is based on interviews and a survey study with students from the educational program of Social work (Socialomsorgsutbildningen), that graduated 3 years ago. Through the survey I have examined their social-background and their job-searching process. The interviews are the main focus in the study.

The trend in the transport sector is moving towards eco-friendly, fast and convenient transportation,this results in higher demands on railway transports. To meet the demand and quality requirements,the Swedish railway network will have to expand. The cheapest way is to expand little by little butwhat impact do these small steps actually have on the capacity?This thesis examines the interactions of different improvement for the capacity on a single-trackrailway. Through simulations in the software tool RailSys this report studies what effect block signals,extra meeting stations and rebuilding existing two track passing loops to three track loops have onthe capacity.

Idag använder verksamheter sig av en mängd olika applikationer och system. Dessa kräver olika typer av behörighet, beroende på vilken befattning användaren innehar i verksamheten. Det traditionella sättet för att autentisera sig i dessa system är att använda sig av användarnamn och lösenord. Allt eftersom fler system utvecklas och införskaffas måste användaren komma ihåg flera lösenord. Single Sign-On är en teknik för att underlätta inloggning vid flera system, då användaren enbart behöver logga in en gång.