Search results

Popular Abstract in Swedish Utveckling och tillämpning av laserfragmentationsteknik för visualisering av väteperoxider Laserinducerad fluorescens är en etablerad optisk mätmetod för kemiskt specifik detektion och avbildning med tillämpning inom fysik, kemi och biologi. Tekniken bygger på att molekyler ska absorbera laserljus och sedan spontant sända ut ljus som kan detekteras. Det finns dock mångaThe work presented in this thesis is mainly motivated by the need for an optical diagnostic technique which can be used to visualize hydrogen peroxide (H2O2) in its gas phase. Due to the lack of bound electronic states, H2O2 cannot be detected using laser-induced fluorescence based on electronic excitation. Absorption in the ultraviolet leads to photodissociation. Thus a technique called photofrag

A simple, fast and efficient method for designing wideband radar absorbers is proposed. The idea is to modify the circuit analog absorber method without perturbing the bandwidth. This is done by utilizing the asymptotic behavior of such an absorber at low frequency and replacing the band-stop resonating frequency selective surfaces with low-pass capacitive ones, which can be synthesized by square

We present a digital solution for the front-end electronics of high resolution calorimeters at future colliders. It is based on analogue signal compression, high speed A/D converters, a fully programmable pipeline and a digital signal processing (DSP) chain with local intelligence and system supervision. This digital solution is aimed at providing maximal front-end processing power by performing w

Packaging is becoming increasingly important from a marketing as well as logistics perspective, particularly for actors in consumer product supply chains. However, the role of packaging in creating or contributing to the competitive advantage of a company or a whole supply chain is still unexplored to a large extent. This is even the case in businesses where research has shown the benefits of cons

To reach its large computing needs, the ALICE experiment at CERN has developed its own middleware called AliEn, centralised and relying on pilot jobs. One of its strength is the automatic installation of the required packages. The Nordic countries have offered a distributed Tier-1 centre for the CERN experiments, where the job management should be done with the NorduGrid middleware ARC. We have de

Mechanisms that govern transport, accumulation and toxicity of persistent pollutants at interfaces in aquatic ecosystems are the foci of this thesis. Specific attention is paid to humic substances, their occurrence, composition, and role in exchange processes across interfaces. It was concluded that: Composition of humic substances in aquatic surface microlayers is different from that of the subsu

A recurrent issue and to a considerable extent also a major obstacle in contemporary theology of religions are various claims of "uniqueness". This article critically considers one particular aspect, i.e., the quest of the unique Jesus in New Testament scholarship and its implications for global interreligious dialogue. It is argued that the quest of the unique Jesus be abandoned since it is neith

This paper presents the characterization of forced cooling channels with three different shapes which are applied in traction motors mounted in Hybrid Vehicles (HEVs) or Zero Emission Vehicles (ZEVs). Generally, there are two different positions of forced cooling channels in electric motors. One way is by drilling holes or cutting cooling channels inside the housing, which is called indirect cooli

There are water vapour condensation and two-phase flow in plate heat exchangers when they are used as condensers. Water phase change and flow dynamics modelling is an important but complicated task due to large change in water physical/transport properties across the water liquid-vapour interface boundary. In particular, singular-link behaviour in governing equations is present due to the large st

This paper presents a new and practical simulation interface to design and analyze lower-limb prosthetic devices. The proposed tool simulates the gait of a lower limb amputee using a desired prosthetic device. It allows the analysis of simple passive devices or the testing of control algorithms for active prostheses. The results presented in this paper correspond to the use of this tool to test a

The following text addresses the ecological and cultural significance of the threats affecting the honey-bee, and which are becoming apparent through the unusual and sometimes drastic death rates of bee colonies. General research conducted on this problem largely agrees that the threats to bees are a syndrome that has a multifactorial nature and anthropogenic origin. In face of a plethora of relev

To fulfill increasing requirements within the manufacturing sector, highly flexible and adaptable automation systems are needed. It is desirable to have one integrated approach that stretches from the process planning phase, through the implementation phase and all the way to the phase for execution of the process control logics. One promising approach is to use the concepts of service-oriented ar

Popular Abstract in Swedish Cytokromer är hem-innehållande proteiner som transporterar elektroner. Hem är den järninnehållande molekyl som binder syre i hemoglobin i de röda blodkropparna i blodet hos t ex människor. Cytokromer har viktiga funktioner i olika typer av organismer: bakterier, växter och djur. Genom att studera vilka gener som behövs för syntesen av cytokromer i bakterien Bacillus subCytochromes are heme-containing proteins that function in electron transfer reactions, e.g. respiration and photosynthesis. There are several different types of cytochromes. C-type cytochromes differ from other types of cytochromes in that the heme group is covalently attached to the polypeptide via thioether bonds to two cysteinyl residues in a consensus motif, Cys-Xaa-Yaa-Cys-His. Cytochrome c o

Popular Abstract in Swedish En betydande del av kemin i naturen och inom industrin äger rum i en omgivning av andra molekyler. Reaktioner, övergångar, interaktioner och andra kemiska processer påverkas nästan alltid utav omgivningen. Dessa modifikationer eller omgivningseffekter beror i grund och botten på växelverkan mellan molekylerna, den så kallade intermolekylära växelverkan. Det speciella faA considerable part of chemistry in nature and industry, takes place in an environment of other molecules. Reactions, transitions, interactions or other chemical processes are almost always modified by the environment. These modifications or environment effects depend ultimately on the interactions between the molecules, the so called intermolecular interactions. The special case of effects induce

Popular Abstract in Swedish Bostadsanpassning är en vanlig åtgärd inom kommunal service och rehabilitering. Avsikten är att ta bort fysiska miljöhinder i bostaden och den nära utemiljön för underlätta vardagliga aktiviteter och möjliggöra ett självständigt liv. Enligt svensk plan- och bygglagstiftning skall alla bostäder som byggs eller genomgår omfattande renoveringar vara tillgängliga och användHousing adaptation is a common intervention, in Sweden granted by municipal authorities, and performed in order to remove environmental barriers and enhance daily activities. In spite of increasing costs, efficient strategies for evaluation of the intervention are lacking. In this thesis, occupational therapy clients living in a south Swedish municipality and receiving housing adaptation grants we