Sökresultat

This report presents the results of a set of verification and validation tests of a probabilistic risk assessment tool, named ARTU (Italian acronym for Risk Analysis in Tunnels), for road tunnel fire safety. This is performed along with a literature review to identify key factors that affect the tunnel fire risk along with inputs for the risk assessment tool. To perform the validation of the 1D fl

Hollow and profiled conductors, which can be categorized as direct cooled conductors, are selected to develop a design proposal of an electrical machine with direct cooled hairpin type of winding. The objectives of this work are 1) investigating the benefits of direct heat removal when using hollow and profiled conductors, and 2) analyzing high frequency capability of these types of windings. Firs

Following the 2004-5 Orange Revolution, President Viktor Yushchenko embarked on an ambitious project to rehabilitate the Organization of Ukrainian Nationalists (OUN) and its armed wing, the Ukrainian Insurgent Army (UPA). Following the Euromaidan Revolution and Russia’s invasion of Ukraine in 2014, a more systematic effort was made to affirm these groups as a center of a new historical canonical c

Adolescent Cannabis exposure has been hypothesized to act as a gateway to opiate abuse. In order to investigate the role of genetic background in cannabinoid-opiate interactions, we studied the effect of Δ(9) -tetrahydrocannabinol (THC) exposure of adolescent Lewis and Fischer 344 rats on the responsiveness of accumbens shell and core dopamine (DA), as monitored by microdialysis, to THC and heroin

This report provides a brief review of how national government policies and guidelines apply to or regulate the use of environmental labelling and information schemes (ELIS) in selected OECD countries. The report reviews definitions relevant to environmental claims and identifies four types of potentially false or misleading environmental claims. The report also reviews countries’ different approa

Government agencies in Sweden are experiencing a communicative turn where notions concerning branding, image and identity have become standardized tools and concerns. Public relations, with its focus on persuasion and creating relations with external actors, is part of this communicative turn. This book is concerned with how government agencies practice political public relations in a more communi

Research on tourist mobility in combination with the tourists’ experiences has been rare to date. Previous studies focusing on the activities of tourists in time and space have most often used the method of time–space diaries. However, an important flaw in this method is that these recordings depend on the respondents’ personal observations and notes. This disadvantage is avoided by using Global P

In this study the effect of the dispersed state of soy phosphatidylcholine on emulsification is investigated. The emulsifier is either dispersed in the aqueous phase (coarsely, as small vesicles, as large vesicles), or it is dispersed in the oil phase. Oil-in-water emulsions are prepared with the emulsifier present in the different dispersed states. High-pressure homogenization is used for the emu

Svensk sammanfattningEfter mer än 50 år av utforskande av rymden och studier av ett växande antal kända nedslagskratrar på jorden så har bildandet av nedslagskratrar utvecklats från att anses vara en sällsynt geologisk företeelse till en fundamental del av jordens, och solsystemets, historia.I dag vet vi att nedslagskratrar är en av de vanligaste landformerna på himlakroppar i inre solsystemet, saImpact cratering was once considered a rare geological process of no, or little, importance to the evolution of the Solar System and planet Earth. After more than 50 years of space exploration and the discovery of numerous (~190 as of October 2016) impact structures on Earth, this view has changed, and it is now clear that impact craters are in fact one of the most common morphological features on

Transport of people and freight on-road have a big impact on the total energy use in the world. The majority of these transports is propelled with diesel engines and the reason is simply that the diesel engine is better than the gasoline engine due to lower fuel consumption. But the cost of this is the increase in dangerous nitrogen oxides (NOx). Around 10 000 people dies everyyear due to emission

This study explores the impact an exogenous improvement in childhood health has on later-life outcomes. Using extensive and detailed register data from the Swedish Interdisciplinary Panel covering up to 2011, we follow individuals exposed to the introduction of the first vaccine against polio in Sweden (birth cohorts 1937–1966) until adulthood in order to quantify the causal effect of polio vaccin

Renovating and improving the current building stock is a matter of both need and importance. In order to know if the implemented renovation measure has had an impact on the building as a system it is important to verify the impact through measurements. The aim of this project is to isolate the impact of a measure on the energy efficiency of a building as well as the indoor environmental quality. T

III-V compound materials have long been used in RF applications in high-electron-mobility-transistors (HEMTs) and bipolar-junction-transistors (BJTs). Now, III-V is also being viewed as a material candidate for replacing silicon in the n-channel in CMOS processes for increased drive currents and reduced power consumption in future nodes. Another alternative to increase the drive current is to use III-V compound materials have long been used in RF applications in high-electron-mobility-transistors (HEMTs) and bipolar-junction-transistors (BJTs). Now, III-V is also being viewed as a material candidate for replacing silicon in the n-channel in CMOS processes for increased drive currents and reduced power consumption in future nodes. Another alternative to increase the drive current is to use

Gaza has several water problems; inefficient water use by the agricultural sector, limited fresh water supply and high water demand, groundwater contamination, seawater intrusion and shortage of electricity. More water and electricity for the future development of Gaza that will give better life; a significant value of water should be added to the Palestinians living in blocked Gaza; more employme

III-nitrides are considered the material of choice for light-emitting diodes (LEDs) and lasers in the visible to ultraviolet spectral range. The development is hampered by lattice and thermal mismatch between the nitride layers and the growth substrate leading to high dislocation densities. In order to overcome the issue, efforts have gone into selected area growth of nanowires (NWs), using their

In relation to international obligations, under the Paris Climate Agreement and as a member state of the EU, Austria is expected to drastically cut carbon emissions over the coming years. In order to achieve this goal, measures to reduce emissions have to be taken in all sectors of the national economy. In this context it is interesting to note that to date it is widely unknown how much emissions

Most chronic and acute lung diseases have no cure, leaving lung transplantation as the only option. Recent work has improved our understanding of the endogenous regenerative capacity of the lung and has helped identification of different progenitor cell populations, as well as exploration into inducing endogenous regeneration through pharmaceutical or biological therapies. Additionally, alternativ