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People have become more and more mobile as a result of advancements in wireless communications technologies. The mobile phone as an enabler of this increased mobility has become an ever more important part of our society but comparatively little research has been done concerning mobile services at the organisational level as opposed to the individual level. With our study we wish to contribute to

The cost efficiency of the biorefining process can be improved by extracting high-molecular-mass hemicelluloses from lignocellulosic biomass prior to ethanol production. These hemicelluloses can be used in several high-value-added applications and are likely to be important raw materials in the future. In this study, steam pretreatment in an alkaline environment was used to pretreat the lignocellu

This paper presents the co-design of a class-D digitally-controlled oscillator (DCO) and a low-dropout voltage regulator (LDO) generating the supply voltage for the DCO. Despite the high intrinsic supply pushing of the class-D oscillator topology, the LDO noise has only a very marginal impact on the DCO phase noise. The class-D DCO and LDO have been integrated in a 65nm CMOS process without any th

This paper describes a new method of finding thin, elongated structures in images and volumes. We use shortest paths to minimize very general functionals of higher-order curve properties, such as curvature and torsion. Our method uses line graphs to find the optimal path on a given discretization, often in the order of seconds on a single computer. The curves are then refined using local optimizat

Towards a New Eldercare? Middle managers reflections on how to create good service within homes for the elderly. [translated title] For the past twenty years there has been a governing trend of efficiency and privatization of the swedish elder care. These trends have put the elder cares very foundation, it’s purpose, in a tremble. Middle managers within the swedish elder care are struggling to

I dagens samhälle är innovation av tilltagande värde för såväl industrialiserade som utvecklingsländer och ett innovativt samhällsklimat innebär ett betydande bidrag till den ekonomiska tillväxten och till samhällsutvecklingen i stort. Det bokförda värdet hos dagens bolag består till en stor och växande del av immateriella tillgångar och det blir ständigt lättare att tillgå mer och bättre kunskap.In today’s society innovation is increasingly important for a developed, as well as a developing, country and it is a significant contributor to economic growth and the evolution of society. The accounted value of companies increasingly consists of immaterial property and our access to existing knowledge is ever greater and ever easier. Since ideas and innovations are of such great importance to m

Flexibility in construction and properties has become all the more common over the last years. Facilities are a resource and it is the facility provider’s job to provide functional and useful facilities to the core activity. To be able to satisfy the tenants needs, flexible facilities in a favorable is needed as the tenants area of business will with all probability change over the years. New inst

This paper presents an LO phase shifter with frequency tripling for 28-GHz 5G transceivers. The phase shifting and frequency tripling are achieved using an injection-locked oscillator and injection-locked frequency tripler, respectively. A phase detector based on third harmonic mixing is also implemented and is used to detect the applied phase shift, supporting automatic calibration of the phase s

The production of biofuels in Sweden has increased significantly in the past years in order to reduce fossil fuel dependence and mitigate climate impacts. Nonetheless, current methodological guidelines for assessing the GHG savings from the use of biofuels do not fully account for benefits from by-products and other utilities (e.g. waste heat and electricity) from biofuel production. This study th

Partially Premixed Combustion (PPC) is a combustion concept by which it is possible to get low smoke and NOx emissions simultaneously. PPC requires high EGR levels and injection timings sufficiently early or late to extend the ignition delay so that air and fuel mix extensively prior to combustion. This paper investigates the operating region of single injection diesel PPC in a multi cylinder heav

A diesel engine developed for an international market must be able to run on different fuels considering the diesel fuel qualities and the increasing selection of biofuels in the world. This leads to the question of how different fuels perform relative to a standard diesel fuel when not changing the hardware settings. In this study five fuels (Japanese diesel, MK3, EN590 with 10% RME, EN590 with 3

The production of a prompt photon in association with a Z boson is studied in proton-proton collisions at a centre-of-mass energy s = 13 TeV. The analysis uses a data sample with an integrated luminosity of 139 fb−1 collected by the ATLAS detector at the LHC from 2015 to 2018. The production cross-section for the process pp → ℓ+ℓ−γ + X (ℓ = e, μ) is measured within a fiducial phase-space region de

Background Technological advancements over the last decades have resulted in an increased degree of digitalisation within as well as in between companies around the world. As a result, requirements on companies in general are growing and global competition is steadily increasing. One area for which this is highly relevant, and for which there is still a lot of potential for improvement, is industr

Den här rapporten behandlar hur övertagande av huvudmannaskap för allmän plats i detaljplaner går till. I rapporten har det bland annat undersökts hur vanligt förekommande det är bland landets kommuner att arbeta med övertaganden. De bakomliggande skälen till varför kommunerna genomför övertaganden har också varit föremål för granskning, liksom enskilda väghållares utgångspunkter i frågan. Arbetet

This thesis has been carried out in cooperation with Malmö Studenthus via Miljöbron whom requested suggestions on how they can improve their energy usage in their property Taxeringsintendenten 3 which is located in Rosengård, Malmö. The building was built in the 70s and is currently being used as a student residence with 665 newly renovated apartments. The thesis is topical as in recent years more

Seagrass meadows are a vital part of the marine ecosystem surrounding the island of Mallorca, but human-induced pressures are degrading the seagrass meadows’ stock of natural capital. Although researchers are working together with policymakers to implement and improve conservation measures, the current legal framework is not sufficient to protect the meadows from further depletion. Therefore, I us