For several years Uppsala University together with several companies has been involved in a WISENET project aimed at improving railway transport security. By placing a sensor system near the wheels of each wagon, the temperature of the bearings can be measured and transmitted to a collector placed centrally on the wagon. This in turn transmits the collected data to RFID receivers placed intermittently along the railway.As the signals are transmitted wirelessly, problems may occur as the antennas get dirty or coated with ice and snow. To determine the effects of these coatings, several tests were performed examining the reflection coefficient S11, the impedance Z11 and the efficiency eta of an antenna, and how they varied when various coatings were placed over the antenna. Examined coatings were ice, snow and water to determine the effects of weather, and various metal-based coatings: powdered iron both pure and partially oxidized, and iron ore granules.

Structural rationalizations and regionalization of the agricultural sector in Sweden has lead to unevenness in thedistribution of plant nutrients. Nutrients are lost from crop producing farms as harvest products are sold, whilefarms with animal production often have manure in excess of their needs. In addition to this the retention ofwater and nutrients in naturally occurring wetlands has decreased due to a reduction of wetlands in number andsize in the agricultural landscape. This increases nutrient levels in agricultural run-off and causes eutrophicationas well as nutrient losses from arable soils. One potential solution to both problems would be to store nutrientrichsurface water from agricultural areas and use it for irrigation of agricultural crops.

En människa har en viss mängd kapacitet för att utföra uppgifter. Om uppgifterna blir för svåra eller för många, det vill säga om den mentala arbetsbelastningen blir för hög, går det inte längre att klara av alla uppgifter och prioritering av de viktigaste uppgifterna blir nödvändigt. Piloter behöver ofta ta in och bearbeta en stor mängd information under instrumentflygning. Ofta måste en del av uppgifterna utföras samtidigt och på begränsad tid. Syftet med examensarbetet är att, med hjälp av en subjektiv mätmetod undersöka vilka moment under instrumentflygövningar som medför störst respektive minst mental arbetsbelastning.

For several years Uppsala University together with several companies has been involved in a WISENET project aimed at improving railway transport security. By placing a sensor system near the wheels of each wagon, the temperature of the bearings can be measured and transmitted to a collector placed centrally on the wagon. This in turn transmits the collected data to RFID receivers placed intermittently along the railway.As the signals are transmitted wirelessly, problems may occur as the antennas get dirty or coated with ice and snow. To determine the effects of these coatings, several tests were performed examining the reflection coefficient S11, the impedance Z11 and the efficiency eta of an antenna, and how they varied when various coatings were placed over the antenna. Examined coatings were ice, snow and water to determine the effects of weather, and various metal-based coatings: powdered iron both pure and partially oxidized, and iron ore granules.

The aim of this master?s thesis is to identify differences and similarities, regarding security, in two goods terminals in an organisation in the transport and goods sector. In this thesis we use Cultural Theory as an analytical instrument to investigate organizational culture, as seen from a security perspective. Cultural Theory is a theory seen from two perspectives, the stable perspective and the mobile perspective. These two perspectives concentrate on different research areas.

Inom intensiwården transporteras ofta svårt sjuka patienter för diagnostik eller behandling. En transport av en sjuk patient innebär alltid en risk för att olika komplikationerkan uppstå. För att främja patientsäkerheten är målet att inte utsätta patienten för risker vilka kanforebyggas bl.a. genom att risker blir kända, analyseras och åtgärdas.  Grunden för säkerhetsarbete är god kännedom om verksamhetens risker.Syftet med studien är att ta reda på vad intensiwårdssjuksköterskor uppfattar som risker vid patienttransporter,samt vad de har for önskemål fÌir optimal patienttransport ur ett patientsäkerhetsperspektiv. En enkät arbetades fram och delades ut på två intensiwårdsavdelningar.

Kostnaderna för fuktskador i Sverige uppskattas årligen uppgå till mångmiljard belopp.Fuktskador i byggnader medför också en ökad risk för ohälsa hos brukarna. Kunskapen föratt producera fuktsäkra byggnader finns men utnyttjas inte i den omfattning den borde.Den 1 juli 2007 träder en ny upplaga av Boverkets byggregler i kraft. Förtydliganden hargjorts i avsnittet gällande fukt, vilka underlättar verifieringen av entreprenadensfuktsäkerhet. Reglerna innefattar också krav på kritiska fukttillstånd i material. Denna studiesyftar till att kartlägga brister i produktionsskedet och hur produktionen kan utvecklas för attmotsvara de i Boverkets byggregler ställda krav på fuktsäkerhet.Intervjuer har förts med olika representanter i byggbranschen för att ge en helhetssyn avfuktproblematiken.

External shopping malls in the context of urban sprawl have, according too much of the previous research, had a negative connotation when it comes to urban planning and a sustainable society. In recent years, some of this research on the issue has changed course towards that it might be some positive opportunities and elements in this development, given that it follows certain patterns. This latter development is what we have chosen to look deeper into in our study, Sustainable urban sprawl.The shopping mall Allum in Partille center has been the subject of this case study, to explore how people's shopping habits and travels in connection with these purchases has been affected by the establishment of an external shopping mall from a sustainability perspective.The method we used was a questionnaire distributed at workplaces in Partille. The collected data were then analyzed by using some of the dominant urban planning theories, for thus underpin our analysis. We have supplemented the study with a collection of information on existing and planned shopping centers in Gothenburg region.Our study shows that external shopping centers located in already developed areas, with an existing social structure, can help to create a more compact city with fewer and shorter shopping trips, and more sustainable transport choices when purchasing goods and services..

Den mest använda definitionen av begreppet hålbar utveckling lyder: ?En hållbar utveckling är en utveckling som tillfredsställer dagens behov utan att äventyra kommande generationers möjligheter att tillfredsställa sina behov?. Definitionen kommer från rapporten ?Vår gemensamma framtid? från 1987. Hållbar utveckling omfattar ekonomiska, ekologiska och sociala aspekter samt samspelet och balansen mellan dem.

Our population are ageing. As this happens more people will be in need of long term care facilities. We now know that some elderly people with certain background factors are more likely to be injured or sick. One of the four biggest background factors is fall propensity. Most of the reported falls come from long term care facilities, approximately 60 % of the care takers in long term care facilities fall one time or more each year.

Agricultural land could be polluted by radioactive substances after a fallout. We would then need information about the level of contamination to decide whether the crops could be utilized as food under these circumstances. In an experiment carried out during the 1990ies the retention of 134Cs in potato haulm and the transfer to the tubers were studied. The experiment was carried out during three consecutive years. The plants were cultivated in pots under field conditions and the artificial deposition was sprayed directly onto the potato haulm at different times during the growing season.

Partnering is a collaboration method where the contractor and the client work together, based on a mutual trust towards each other and with a common goal for the project. The method originates from the United States where it was early adapted by the U.S. Army Corps of Engineers. It later spread internationally where the United Kingdom and Denmark were early in Europe to see the potential with partnering, to help aid with the issues they were having where construction projects kept running late, going over budget and lacked in quality. By using partnering you can achieve a shorter building time, improved work relationships and enhanced efficiency and cost effectiveness.

Evenemang är för många nationer och orter idag ett prioriterat område. I Sverige anses evenemang vara ett viktigt utvecklingsområde och en möjlig tillväxtgenerator för turismnäringen. Hur evenemang påverkar lokalsamhället och vilka effekter de får för det lokala näringslivet på en arrangörsort är områden där det behövs mer kunskap. Detta för att skapa rimliga förväntningar på evenemangets effekter och för att veta vilken nytta ett evenemang egentligen har för lokala företag. Syftet med denna studie är att undersöka effekter av evenemang för lokala företag.

The Swedish parliament has decided that Sweden should increase its usage of renewable fuel sources to a level of 50% of the total energy consumption in Sweden by the year 2020. One way to reach that goal may be to increase the usage of stumps as a bio-fuel. In Sweden stump harvesting is possible on about 5-10% of the total harvested area and thus contribute with 1,3 - 2,6 TWh per year. An increase stump harvest doesn't come without its drawbacks for the environment. When harvesting stumps a tracked excavator is used to pry the stumps from the ground and then cut the stumps into smaller pieces.

The use of the robust and durable woody ground covers is increasing, not in the least in public places. The group includes low shrubs of different height that effectively build low, tight vegetation that covers the ground. Despite all the good qualities the knowledge about them is quite low and there are ideas about them of being dull. The woody ground covers manage to struggle against weeds effectively by competing for nourishment and water, but above all, by the canopy of the ground covers that prevent the weeds from getting enough light. In that way the woody groundcovers can effectively compete with the annual weeds.