Interfacial electron transfer is one of the key processes in the novel type of photovoltaic cells-dye sensitized solar cells (DSSC). By means of transient absorption spectroscopy we have studied the dynamics of the initial photo-induced processes in dye-sensitized nano-porous thin films of wide-band gap semiconductor microcrystallines, which represent the main photoactive part of DSSC. In the most

This paper considers detection of internal decay in standing trees of species Picea abies (L.) Karst. The novel approach is based on two-dimensional spatiotemporal modal analysis of a cross-section which is excited by the hand-made impact of a hammer. An array of accelerometers is distributed around the cross-section, and the resulting impact response is analysed. The temporal frequency for a spec

This thesis examines exclusion from the housing market, its justifications, and the resulting public images of the excluded. It is based upon a study of discourses within three different forms of social housing in Sweden; the poorhouse of the 19th century, the public housing sector of the 1980s and 1990s, and the housing currently supplied by the local social authorities. My emphasis is on the lat

Popular Abstract in Swedish Vad innebär det att vara en god medborgare? Frågan är lika enkel och tidlös som svaret är komplext och mångfacetterat. I grunden har det att göra med hur vi tänker politik. Frågan har i sin förlängning också djup moralisk innebörd och går tillbaka på våra normativa föreställningar om det goda samhället. Svaret vi ger varierar därför med olika värden och ideal; en god meWhat does it mean to be a good citizen? Starting with Aristotle’s ethics and philosophy of friendship formulated between the private and the public in politics' and with the timeless question of what makes a society possible as a backdrop, the author outlines a possible answer. A good citizen is a virtuous citizen, and a virtuous citizen is prudent, courageous, moderate and just. In addition, a go

This thesis examines the problem of smoke spread via ventilation ducts to adjacent room(s) in case of a compartment fire. The main goal is to examine the possibility of operating the fans during different fires in four types of buildings (compartments, hospitals, offices and hotels) and to estimate the risk of smoke spread in different conditions.

The global climate change caused by emissions of greenhouse gases from combustion processes has been recognized as a continuously growing problem and much research focuses on improving the environmental performance of gas turbines. The potential of improving gas turbine component efficiencies has become smaller each decade and therefore, thermodynamic cycles have become more interesting for power

Objective: To perform genetic linkage analysis in a family affected with ALS and frontotemporal dementia (FTD). Methods: The authors performed a genome-wide linkage analysis of a four-generation, 50-member Scandinavian family in which five individuals were diagnosed with ALS and nine with FTD. Linkage calculations assuming autosomal dominant inheritance of a single neurodegenerative disease manife

The present study examined the rheological blood velocity profile in the conduit femoral artery during rhythmic muscle contractions at different muscle forces. Eight healthy volunteers performed one-legged, dynamic knee-extensor exercise at work rates of 5, 10, 20, 30, and 40 W at 60 contractions per minute. The time and space-averaged, amplitude-weighted mean ( V-mean) and maximum (V-max) blood f

Using a numerical simulation of compressible convection with radiativetransfer mimicking the solar photosphere, we compare the velocity fieldderived from granule motions to the actual velocity field of the plasma.We thus test the idea that granules may be used to trace large-scalevelocity fields at the sun's surface. Our results show that this isindeed the case provided the scale separation is suf

The inverse scattering problem on the half-axis for long range potentials is studied. It is shown that the solution of the inverse problem contains arbitrary real parameters iven if no bound states are present. Connections with the inverse problem on the whole axis are discussed.

Uncracked reinforced concrete slabs have been field exposed at the Träslövsläge marine field station at the Swedish west coast since April 1992. This report is a compilation of the total chloride profiles and calculated chloride transport rates in 13 concrete mixes exposed for 1, 2 and 5 years.

PURPOSE: To describe new disease-causing RP2 and RPGR-ORF15 mutations and their corresponding clinical phenotypes in Swedish families with X-linked retinitis pigmentosa (XLRP) and to establish genotype-phenotype correlations by studying the clinical spectrum of disease in families with a known molecular defect. METHODS: Seventeen unrelated families with RP and an apparent X-linked pattern of disea

Recension av Sverker Oredsson, Svensk rädsla. Offentlig fruktan i Sverige under 1900-talets första hälft