The use of spread spectrum signals has increased dramatically in military applications. Finding methods for detecting and positioning of these signals have become interesting research areas for signal intelligence purposes. One method is to measure the time difference of arrival (TDOA) that occurs when two receivers are synchronous and spatially separated. Based on the TDOA-technique an audio-demonstrator has been developed and implemented. This report describes the theory for how sound received in microphones can be used to extract information about the transmitter?s position from the measured time difference.

The purpose of this study is to examine how well the teaching of physical education meets the needs of a future life in the building and construction industry. In order to answer the survey's purpose, we have carried interviews with teachers for the subject Physical education and health as well as with teachers for the Building- and construction program in order to through their experience gain understanding of common health problems in the profession, but also to gain a deeper understanding of the importance of the subject Physical education and health for this profession. We have reported and described previous research and then analyzed it during our processing of collected data material. The result of the interviews showed that the teachers as far as possible are trying to adjust the lessons to suit this practical program. They also indicate several aspects to consider in order to further customize the education for students in the Building- and construction program.

Denna rapport beskriver utvecklingen av ett system för att växla mellan olika RFID-antenner som skall användas av projektet ?Digital Djurpark?.Systemet ansluts till en RFID-läsare(aktiveringssändare och ID-mottagare) och sex antenner.Det är möjligt att manuellt välja vilken antenn som skall vara aktiv(kopplad till RFID-läsaren) eller aktivera systemet automatisk en antenn och efter en tid byter till nästa i turordning.En antenn aktiveras genom att ett relä slår till och låter signalen passera mellan antenn och RFID-läsaren, antennen avaktiveras när relät slår från. För att aktivera och avaktivera en antenn går en signal från kontrollerkortet till en transistor som i sin tur styr relät.Till varje antennutgång finns också en uppsättning om fem kondensatorer, placerade parallellt med antennen, dessa finns för att kunna finjustera resonansfrekvensen då olika antenner kan skilja i induktans.Styrningen av systemet görs av det sen tidigare använda kontrollerkortet, fast med uppdaterad mjukvara. Det har en USB-port för kommunikation med en dator som tar emot ID från den avlästa taggen och kan välja aktiv antenn. Rapporten tar endast upp mjukvaran som behövs för att kunna växla antenn.Ett förslag på antenn tas fram, vilken består av 2,5mm2 kabel lindad i en kvadratisk spole med sidan ca50cm..

Sveriges Radio sparar sin data i stora arkiv vilket gör det svårt att hitta specifik information. På grund av denna storlek blir uppgiften att hitta specifik information om händelser ett stort problem. För att lösa problemet krävs en mer konsekvent användning av metadata, därför har en undersökning om metadata och nyckelordsgenerering gjorts.Arbetet gick ut på att utveckla en algoritm som automatisk kan generera nyckelord från transkriberade radioprogram. Det ingick också i arbetet att göra en undersökning av tidigare arbeten för att se vilka system och algoritmer som kan användas för att generera nyckelord. Dessutom utvecklades en applikation som generar färdiga nyckelord som förslag till en användare.

Healthcare staff working within emergency care must often handle extreme and emotional situations. Most of the certified registered nurse anesthetists (CRNAs) will some time during their professionally active lives confront with events that are difficult to handle and for some these events will lead to more or less serious traumatic distress and in certain cases develop post traumatic stress disorder symptoms. Many studies demonstrate that staff working in similar stress related environment runs larger risk in order to get stress related symptoms. The aim with the study was to describe the experiences around difficult work related events among CRNAs. The study was implemented as a descriptive study with qualitative run-up via a questionnaire with open questions relevant for the study's aim.

To be seen is essential. Presently, the marketing of different well-known brands within the same product category is done with little variation. To marketing professionals, this creates an opportunity to market products in an unexpected way. The use of incongruent market communication and by creating a discrepancy between a well-known brand?s advertisement and brand scheme, which is already established in customers? minds, is one way to be different.

"Outstanding" or "They ought to know more about computers" : A study on computer support at university libraries.The main purpose of this study is to investigate the support computer users are given at university libraries. Further, the aim is to find out if the users thought they received the support that they needed. The study is carried out at two different university libraries. The data is obtained through interviews with the librarians, observations of the daily work at the information counters and questionnaires handled out to the users.The study indicates that variables such as knowledge, time and equipment play a central role in making the computer support successive. To a great extent the computer support is synonymous with information search, but it also deals with word processing and technical support connected with computer errors.

Clustered Columnstore Indexes (CCI) and In-Memory Online Transaction Processing (OLTP) are two new techniques that were introduced with Microsoft?s new database management system SQL Server 2014.The thesis analyzes these two techniques, describes the theory behind them and also the background information that needs to be known to understand more of the new techniques. Performance tests of the new techniques have been performed to see how much faster response time we can get and less storage we need to use where the result is represented by performance diagrams and a compression diagram. This thesis is a cooperative work with a company called Trimma and the result is used as support to decide if these new techniques could be of advantage for the company.The test consists of five test queries with different purposes. The result is illustrated by diagrams that show the result and another diagram that shows how much the data gets compressed with the different techniques.

Denna rapport beskriver utvecklingen av ett system för att växla mellan olika RFID-antenner som skall användas av projektet ?Digital Djurpark?.Systemet ansluts till en RFID-läsare(aktiveringssändare och ID-mottagare) och sex antenner.Det är möjligt att manuellt välja vilken antenn som skall vara aktiv(kopplad till RFID-läsaren) eller aktivera systemet automatisk en antenn och efter en tid byter till nästa i turordning.En antenn aktiveras genom att ett relä slår till och låter signalen passera mellan antenn och RFID-läsaren, antennen avaktiveras när relät slår från. För att aktivera och avaktivera en antenn går en signal från kontrollerkortet till en transistor som i sin tur styr relät.Till varje antennutgång finns också en uppsättning om fem kondensatorer, placerade parallellt med antennen, dessa finns för att kunna finjustera resonansfrekvensen då olika antenner kan skilja i induktans.Styrningen av systemet görs av det sen tidigare använda kontrollerkortet, fast med uppdaterad mjukvara. Det har en USB-port för kommunikation med en dator som tar emot ID från den avlästa taggen och kan välja aktiv antenn. Rapporten tar endast upp mjukvaran som behövs för att kunna växla antenn.Ett förslag på antenn tas fram, vilken består av 2,5mm2 kabel lindad i en kvadratisk spole med sidan ca50cm..

The purpose of warning labels used by governments is to decrease consumption. In Sweden, the mandatory warning labels are designed according to statutory guidelines, and not according to research on attention-grabbing graphic elements. This results in a belief that the attention toward the warning labels is poor. An extensive experiment underlies this study, which has the purpose of providing insights to the effects that warnings, warning design, and warning content has on attention, attitudes and behavior in print ads. The study shows that, even though the standard design and content has lost much of its potential to communicate the warning, it gains more attention compared to a warning label with new design and content.

The aim of this Masters thesis is to examine the use of IT, that is the Internet and other applications of personal computers, among seniors 65+. It also deals with issues of access to IT for seniors in public libraries. The theoretical background of the study consists of Rogers "Diffusion of innovations", Hektors categories of information activities, and the Swedish IT-commissions categories of motives and prerequisites for the use of IT. The research questions focus on factors motivating the use of IT, the extent and the purposes of IT use, the consequences and the barriers that IT-users experience, and views on IT in public libraries and IT courses, respectively. Qualitative interviews were carried out with nine senior IT-users.

Wood pellets are an upgraded product of residuals from several wood processing industries, for example saw mills and pulp industries. The pellets are produced by pressing the milled and dried sawdust to cylindrical units with a higher density than the initial raw material. Pellets have great benefits compared to the raw material: high energy per volume, good transport and storage properties and homogeneity. Several parameters collaborate in the whole process, which makes it complex. Wood is a heterogeneous material, chemically and structurally dependent on wood parts, habitat and storage procedures.

I anestesisjuksköterskans arbetsuppgifter ingår det att verka i samband med larm vilket innebär signal som anger fara, exempelvis vid akuta tillbud som kräver omedelbara vårdåtgäder. Larmsituationer innebär att anestesisjuksköterskan lämnar sin ordinarie arbetsplats och invanda miljö. Anestesisjuksköterskan kan i larmsituationen tappa kontrollen över arbetssituationen om kunskaper och färdigheten är ofullständiga, vilket kan hota patientsäkerheten samt medföra vårdskada och vårdlidande hos patienter. Syftet med denna totalundersökning var att kartlägga vilka kompetenskrav som vårdenhetschefer ställer på anestesisjuksköterskor i samband med larm som sker utanför den normala miljön. För att svara på studiens syfte valdes en kvantitativ ansats med deskriptiv statistik samt kvalitativ innehållsanalys.

The purpose of this paper is to find out the staff's feelings and emotions in a HVBaccommodation where they work with unaccompanied refugee children. A HVBaccommodation is an institution that refugee asylum seekers come to in the beginning of their refugee process. To shed some light on this issue, a hermeneutic perspective has been used in the methodological approach of the work. The material gathered through interviews is collected from six supervisors at the selected accommodation in southern Sweden.The material based on the interviews is grounded in the supervisors' experiences, emotionsand feelings. Our result has been used as a foundation for the analysis of feelings andemotions based on three theoretical approaches: The total Department of Goffman (1973),socialization and the significant other Mead (1934), and the relationships and emotions atwork Hochschild (1983).

The component workshop at Atlas Copco inTierp intends to reduce the costs inorder to increase their competitiveness.This thesis examines how the productionmanagement around cylinder washersshould be managed in a way that meetsthe customer needs. The customer to thecylinder washer is Atlas Copcos assemblydepartment in Tierp.The purpose of this thesis is to providean alternative way of managing theproduction. A chapter of theory is addedto give the reader an insight ofdifferent types of production managementsystems as well as the underlyingknowledge needed to get a better readingexperience. An introduction of kanbancan in theory help Atlas Copco in thedirection they strive. It should beclear how the purpose of this thesisaffects the cost for the componentworkshop and also how it relates to thecurrent production.