År 2011 uppgick antalet personer som suiciderat i Sverige till 1387. Studier visar att den suicidbenägna patientens första kontakt med sjukvården är avgörande för hur det kommande vårdförloppet kommer att utvecklas. Ambulanspersonal är en av många yrkesgrupper som möter suicidbenägna patienter. Studier visar även på att om patienten möts av dåliga attityder så kan det medföra negativa konsekvenser för patienten. Syftet med studien var att översätta, re översätta och validera en engelsk enkät: the Suicide Behavior Attitude Questionnaire (SBAQ): för användning i den svenska ambulanssjukvården.

In industrial control systems PID-control remains the prevalent strategy, also for processes that would benefit from model based control. The purpose of this thesis is to evaluate whether model based control can be readily implemented in an industrial control system. To this end a simulated surge tank with a simulated industrial control system is studied. For evaluation two scenarios with specified objectives are selected.Following a review of LQR and versions of MPC, Predictive Functional Control (PFC) is considered the most suitable for implementation. PFC is a form of MPC developed with industrial applications in mind and therefore has several advantages for implementation in an industrial control system.

The energy consumption continues to increase as the use of electronics and energy consuming equipment increases. The use of fossil fuels has to be phased out for this to be sustainable in the long run while the use of renewable energy continues to increase. A renewable energy source is solar energy but the production of heat and electricity are today very expensive compared to other energy sources and an important task for the solar energy market to grow is therefore to minimize the production cost of the solar collectors while increasing its efficiency to produce heat and/or electricity. One way to convert solar energy into heat is by using solar collectors and electricity can be produced by utilizing the produced heat, or by applying solar cells.This thesis aims to recommend a reflective material for the next generation solar collectors from Absolicon and to recommend a commercially available coating for the receiver tube of the solar collector. A market study has been carried out to investigate the cost-related aspects along with the optical and durable aspects for the optical material of the solar collector.

This thesis investigates how different Linux-distributions installation interface relate to the ISO 9241 standard, parts 12 and 13, and how they relate to the installation interface of Windows XP, with the hypothesis: "There is a Linux-distribution whose installation interface according to applicable HCIrecommendations is equivalent to that of Windows XP." With the checklists provided by ISO 9241 an empirical study has been made, and so comparable measurements of how well the Linux-distributions and Windows XP follows the recommendations of the standard was obtained. By comparing the results from the tests similarities and differences between the installation interfaces can be deducted. As the result and the conclusion shows there are Linux-distributions whose installation interface, according to the applicable HCI-recommendations, are equivalent to that of Windows XP..

The purpose of this thesis is to analyze and propose improvements to the current procedure for cost estimations of purchased maintenance work at Banverket, the Swedish rail administration. This governmental institution is responsible for the procurement of maintenance services for the country?s railroad network through open tenders. Due to the generally low number of contractors, it is particularly necessary to establish accurate cost estimates in order to assess the offers and ensure that a fair price is being paid to the suppliers. Several flaws associated with the current practice are identified and analyzed according to cost accounting theories.

Inom MoDo Skog AB pågår för närvarande en nyindelning av skogsmarksinnehavet på ca 680 000 ha i norra Sverige. Nyindelningen, vilken beräknas vara avslutad 1998, genomfårs i tre steg. Inledningsvis utförs en förtolkning med hjälp av flygbilder och avancerade stereoin­ strument. Därefter görs en subjektiv fåttkontroll av samtliga bestånd äldre än 30 år och slutli­ gen en objektiv kontrolltaxering av 2-5% av antalet bestånd. En nyindelning av detta slag är mycket kostsam och tidsödande.

Elcertifikatssystemet har funnits i Sverige sedan år 2003 med syftet att ge ekonomiskt stöd till producenter av förnybar el och lägga kostnaden på elkonsumenter. Elkonsumenternas kvotplikt uppfylls av elleverantörer som för över kostnaden till konsumenterna. Elcertifikatspriset fluktuerar på en öppen marknad och därmed uppstår en möjlighet för elleverantören att med rätt strategi minimera kostnaderna för kvotplikten.Kandidatarbetet ämnar att utveckla en optimal strategi för inköp av elcertifikat till spotpris, synnerhet i syfte att minimera Elverket Vallentunas kostnader för elcertifikat. För att lyckas med strategin utförs modellering och prognostisering av elcertifikatspriset och då en prognostisering av priset bryter mot effektiva marknadshypotesen analyseras även hur elcertifikatsmarknaden förhåller sig till hypotesen.Kandidatarbetets litteraturstudie och analys visar att elcertifikatsmarknaden är ineffektiv på grund av illikviditet, irrationalitet och höga transaktionskostnader. Ineffektiviteten möjliggör prognostisering av elcertifikatspriset med en ARIMA(1,1,0) modell som bedömer prisrörelsens riktning nästkommande vecka med en precision som är skild från slumpen med en signifikansnivå på 0,03 %.

At the beginning of 2011, Sweden started using the European rules for structural design, the Eurocodes, instead of the previous national rules. In both the previous rules and the Eurocodes, it is possible to dimension concrete columns using tabled values. However, the required cross section measurements have increased considerably. Moreover, it is possible to dimension concrete columns using calculations, however, this is unusual.The development of a fire in a fire cell can be divided into the growth stage, the fully developed fire and the cooling phase. The duration of each phase, as well as the temperature, is dependent on a number of factors, e.g.

This thesis investigates how different Linux-distributions installation interface relate to the ISO 9241 standard, parts 12 and 13, and how they relate to the installation interface of Windows XP, with the hypothesis: "There is a Linux-distribution whose installation interface according to applicable HCIrecommendations is equivalent to that of Windows XP." With the checklists provided by ISO 9241 an empirical study has been made, and so comparable measurements of how well the Linux-distributions and Windows XP follows the recommendations of the standard was obtained. By comparing the results from the tests similarities and differences between the installation interfaces can be deducted. As the result and the conclusion shows there are Linux-distributions whose installation interface, according to the applicable HCI-recommendations, are equivalent to that of Windows XP..

This study was made in an attempt to give the forest research centre Mógilsá a producedtetratherm map and a better understanding of how topography and temperature influencethe growth of two tree species. The digital tetratherm map model, covering the northernpart of Iceland, was developed to investigate the correlation between tetratherm and thegrowth of Picea sitchensis and Larix (sukaczewii + sibirica). The study confirms theusefulness of digital terrain models in providing data for a lot of different factors and forthe tetratherm model. Hopefully will this tetratherm map be used in future studies.Secondly, investigations were made correlating the growth of the two species againsttopographic factors representing height above sea level, distance to the sea, slope andtopex. Thirdly, investigations were made comparing the aspect and the ground shape tothe growth.The growth rate of Larix had strong significant correlations to the tetratherm and thedistance to the sea- factors.

This report has a dual focus. The first goal was to increase the knowledge of how the use of electricity in a residential building is distributed. Electricity in residential buildings is used for lighting in common areas, elevators, pumps and many other appliances. The electricity used for these different parts is to a great extent unknown. A few studies have been carried out and the result of these is referred to in this report.By means of measurements and approximations the use of electricity for various appliances became known.

This report has a dual focus. The first goal was to increase the knowledge of how the use of electricity in a residential building is distributed. Electricity in residential buildings is used for lighting in common areas, elevators, pumps and many other appliances. The electricity used for these different parts is to a great extent unknown. A few studies have been carried out and the result of these is referred to in this report.By means of measurements and approximations the use of electricity for various appliances became known.

Sveriges Radio stores their data in large archives which makes it hard to retrieve specific information. The sheer size of the archives makes retrieving information about a specific event difficult and causes a big problem. To solve this problem a more consistent use of metadata is needed. This resulted in an investigation about metadata and keyword genera-tion.The appointed task was to automatically generate keywords from transcribed radio shows. This included an investigation of which systems and algorithms that can be used to generate keywords, based on previous works.

The production of cut flowers has diminished in Sweden and the remaining growers produce mainly in greenhouses. This situation could be changed if hardy, garden perennials suitable for Swedish conditions were to be used as cut flowers. A grower with suitable equipment as plastic tunnels or houses would be able to provide florists with an attractive assortment of perennials for cutting, during an extended selling period compared with the natural flowering period for these cultivars. This assortment would be based upon imported perennials already used by florists, but would also contain new products. To investigate the demand for locally field grown perennials as cut flowers, an inquiry took place.

Det är lagstadgat att arbetsgivaren är skyldig att bedriva ett systematiskt arbetsmiljöarbete (SAM) för att sänka riskerna för ohälsa och olycksfall i verksamheten. Mycket tyder på att detta inte fungerar tillfredställande i många skolor. Denna fallstudie syftar till att kartlägga och synliggöra hur det systematiska arbetsmiljöarbetet organiserats i två utvalda kommunala grundskolor. Det övergripande syftet i studien var att belysa faktorer och mekanismer som kan motverka ett lyckat införande av ett fungerande arbetsmiljöarbete. De frågeställningar vi haft var om kommunernas organisering av arbetsmiljöarbetet uppfyller lagstiftningens krav och hur uppföljningen och kontrollen sker. Studien har genomförts genom analys av kommunernas styrdokument samt genom en enkät kombinerad med uppföljande intervjuer av nyckelpersoner i verksamheterna. Resultat visar att de båda grundskolornas arbetsmiljöarbete organiserats och bedrivs på ett likartat sätt och att arbetsmiljöproblemen till stor del är likartade.