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Gasoline partially premixed combustion (PPC) has the potential of high efficiency and simultaneous low soot and NOx emissions. Running the engine in PPC mode with high octane number fuels has the advantage of a longer premix period of fuel and air which reduces soot emissions. The problem is the ignitability at low load and idle operating conditions.In a previous study it was shown that it is poss

As a consequence of agricultural intensification, large areas of species-rich grasslands have been lost and farmland biodiversity has declined. Previous studies have shown that the continuity of grazing management can have a significant influence on the environmental conditions and the levels of plant species diversity in grassland habitats. The preservation of species-rich grasslands has become a

The Northern Fulmar (Fulmarus glacialis) is one of the most abundant seabirds in the Northern Hemisphere and the most abundant seabird on the Faroe Islands. Except from a few sporadic observations up until the 1950´s no study has focused on this species on the Faroe Islands. Being considered a significant consumer of marine resources in the Faroese marine ecosystem a closer study of this species´

The concept of authentic leadership is increasingly the focus of much leadership scholarship, and many have called for a review of the basic assumptions that underpin it. Taking an interactional approach to authentic leadership (AL) and using naturally occurring workplace interaction as data, we seek to question two basic assumptions of AL scholarship, namely (1) that authentic leadership emanates

In literature (e.g. Meulenbroek & van den Bogaard, 2013; Romer, 1993) a correlation between high class attendance and higher study results are historically shown for first-cycle engineering education. However, a tendency towards significantly lower student attendance at learning activities has been experienced by the teaching staff during the latest ten years and particularly among introductor

The elastic properties of amorphous TiNiSn, a promising half-Heusler system for flexible and wearable devices, were investigated using experimental and theoretical methods. Nanoindentation measurements performed on amorphous TiNiSn thin film grown by magnetron sputtering yielded an elastic (Young’s) modulus value of 132 GPa. To corroborate this result, density functional theory (DFT) calculations

Genom lagen om anställningsskydd (LAS 1982:80) har arbetsgivaren i Sverige möjligheten att sluta avtal om provanställning. Provanställningen är en säregen anställningsform som enligt förarbetena har som syfte att ge arbetstagaren tid att visa sin arbetsförmåga för arbetsgivaren för att den senare skall kunna avgöra vid anställningens utgång ifall arbetstagaren är lämplig för jobbet. Provanställnin

Industrial processes currently account for a signifcant share (25–35 %) of the world’s total energy demand and related emissions. During recent years, the amount of low-carbon electricity from renewable energy sources (such as wind and solar) has increased continuously. Tere is therefore an increasing interestin electrifcation of industrial processes in order to achieve long-term decarbonisation g

Since the 19th century, urban lawns have gradually taken center stage to become one of the main sources of greening in many cities around the world. The current published research on planting technology, maintenance techniques, the impact of lawn maintenance, preferences for manicured lawns and the biodiversity protection for historical lawns as topics, has developed and increased over time. Howev

In Swedish law, the notion of ‘science and proven experience’ (in Swedish, vetenskap och beprövad erfarenhet) defines the gold standard for public decision-making and practice, especially in medicine. The notion is notoriously vague but nevertheless plays an important role in the distribution of rights and duties of patients and healthcare workers. For example, failure to provide care in accordanc

This thesis analyses structural changes and the role of technology in the Swedish economy since the 1970s. With the attention directed towards interdependencies between sectors, a vertical perspective is applied on the economy. This contrats to the most often used horizontal perspective, in which individual sectors, such as manufacturing and services, are studied in isolation. With an integration

Depletion of easily accessible fossil energy resources, threat of climate change and political priority to achieve energy self-sufficiency and sustainable solutions prioritize a conscious and smart use of renewable resources to generate a bio-based economy. Bio-based compounds can replace chemicals and fuels that are now mainly produced from crude oil. Efficient processes for the conversion of pla

The aim of this paper is to find appropriate approximate expressions of thecoherent electromagnetic field scattered by a particulate slab. The exact solution of the coherent electric field to the multiple scattering problem in the slabis determined by the solution of a set of integral equations. By iterating theintegral equations, an approximate solution is obtained, which approximatesthe solution