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It is widely known that diesel combustion in a compression ignition (CI) engine produces and emits a significant amount of particulate matter (PM) which contributes to degradation in both health and environment. The origin of the soot formation depends on several factors, however, the main source of the soot emissions is the combustion of the diesel fuel itself. To circumvent this issue, studies hIt is widely known that diesel combustion in a compression ignition (CI) engine produces and emits a significant amount of particulate matter (PM) which contributes to degradation in both health and environment. The origin of the soot formation depends on several factors, however, the main source of the soot emissions is the combustion of the diesel fuel itself. To circumvent this issue, studies h

Context: With new astronomical infrared spectrographs the demands of accurate atomic data in the infrared have increased. In this region there is a large amount of parity-forbidden lines, which are of importance in diagnostics of low-density astrophysical plasmas. Aims: We present improved, experimentally determined, energy levels for the lowest even LS terms of Fe ii, Ti ii and Cr ii, along with

Sveriges framtida elsystem står inför en stor omställning, där kärnkraft successivt kommer att fasas ut, samtidigt som det sker en stor utbyggnad av vindkraft. Vindkraftens sjunkande priser, tillsammans med Sveriges mål om ett 100 % förnybart elsystem år 2040, gör det till en attraktiv resurs. En omställning från en leveranstrygg elproduktion baserad på kärnkraft, till en mer variabel med vindkrafSweden's future electricity system is facing a transformation, where nuclear power will gradually be phased out, while there is a large expansion of wind power. The declining wind power prices, together with Sweden's goal of a 100% renewable electricity system in 2040, makes it an attractive resource. However, a change from a secure supply of energy from nuclear production, to a more varia

This is the fourth annual report of the Swedish Butterfly Monitoring Scheme, a national monitoring programme coordinated by Lund University for the Swedish Environmental Protection Agency since 2010. The programme is a partnership between the Entomological Society of Sweden, the Swedish Environmental Protection Agency, Lund University, the Swedish University of Agricultural Sciences and the Swedis

Popular Abstract in Swedish Ljus kan beskrivas som en elektromagnetisk våg och har då en viss våglängd. Färgen på ljuset förändras beroende på våglängden. Av det synliga ljuset har violett ljus den kortaste våglängden och rött ljus den längsta. Det finns även elektromagnetisk strålning utanför det synliga området, från Röntgenstrålning till radiovågor. Det vi kallar det optiska området sträcker siAtoms and molecules absorb and emit light at certain, welldefined wavelengths, and this forms the basis of spectroscopy. The wavelengths are given by the discrete energy levels of the atoms/molecules. When illuminated by light of a suitable wavelength, the light will be absorbed, making it possible to deduce information on the presence and concentration of various elements and compounds. When ato

I Sveriges centrala inland finns det allt från enstaka sanddyner till stora dynfält som täcker mer än 10 km2. Dessa dynfält passerar dock oftast obemärkt i landskapet på grund av det oftast markanta vegetationstäcke som fixerar dessa dyner. De är dock värdefulla för att kunna återskapa forna tiders klimat och vindmönster, men tyvärr har förhållandevis lite forskning angående dessa dyner bedrivits

Söderslätt has been dominated by agriculture since many centuries ago. About 90 % of the area is cultural land nowadays. The aim of this paper is to quantify recent changes of ecological relevance in Söderslätt. Interpreted aerial photos from 1938 and 1985 were digitised and geometrical corrected for the change study. The agrarian development since the 1940s has meant a continuos change from small