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UV irradiation is getting increasingly popular as a disinfection step in drinking water production. Ringsjöverket, a drinking water treatment plant in Sweden installed a full-scale UV aggregate in December 2016. However, the effect of UV irradiation on drinking water has mainly been tested on specific pathogens in labscale environment. Heterotrophic plate counts are often used when analyzing drink

Bovine milk contains several enzymes which can affect the quality of milk. One of these enzymes are lipases which hydrolyse the triacylglycerides in milk. In this process off-flavours, odour and product defects are generated. By controlling the enzymes activity, milk quality can be increased and therefore milk and dairy products can be stored for a longer time. This is desirable since the world de

Within the last century, a continuous decline in global insect pollinator populations has been observed. The loss of pollinating insects is not only important for their conservation value in itself, but entails far-reaching consequences of pollination deficits. This development is mainly associated with anthropogenic environmental disturbances, leading to fragmentation and loss of natural habitats

Tågtrafiken är betydelsefull för dagens samhälle, både för transport av människor och gods. I takt med ökad efterfrågan har en trafikökning skett på Sveriges järnväg. Det är trafikledarens ansvar att leda tågen på ett säkert och effektivt sätt och se till att den dagliga driften fungerar. Yrket som trafikledare ställer stora kognitiva krav såsom uppmärksamhet, koordinering och problemlösning. Traf

Fiber-reinforced polymer matrix composites are being used increasingly in lightweight applications where high strength and stiffness is required. One of the main challenges with designing components from such materials is to predict the ultimate strength and behaviour of the structure. Furthermore, due to anisotropic material response and a complex micro structure, various interacting failure mode

Materialflödet som uppkommer i och med dagens nivåer av konsumtion och global handel har gjort att avfallshantering och en effektivare hushållning med jordens resurser blivit allt viktigare. Idag ligger därför stort fokus på att förebygga uppkomsten avfall eller i annat fall återanvända eller återvinna tillverkade produkter. En sektor som använder stora mängder av just jungfruligt material är bygg

Till följd av en ökad globalisering och avregleringar av de handelshinder som tidigare låg till grund för EU:s marknad, har nya flexibla företagskonstruktioner vuxit fram på arbetsmarknaden. En snabb utveckling inom företagsstrukturer har emellanåt lett till att skyddet för de arbetstagare som omfattas av en verksamhetsöverlåtelse har kommit i skymundan. Det rådande direktivet 2001/23/EG tillsatteAs a consequence to the increased globalization and deregulation of trade restriction which previously ruled within the EU market, new flexible corporate structures have risen within the labour market. The swift development within the corporate structures has occasionally led the rights of the employment to be left in the dark in cases of corporate acquisitions. The reigning directive 2001/23/EG w

Utbildning är en viktig del av vårt samhälle och med hjälp av ny teknik finns det utrymme för förbättring. Idag används datorer, applikationer till smarta telefoner samt surfplattor i stor utsträckning inom utbildning. En ny teknikrevolution håller på att äga rum, nämligen Virtual Reality. Detta examensarbete undersöker användbarheten för Virtual Reality som utbildningsverktyg. Eftersom Virtual ReEducation is an important part of our society and with technological advancements there is room for imporvement. Computers, smartphones, tablets and applications are widely spread as educational tools in todays classrooms. A new technological revolution is about to happen, which is called Virtual Reality. This thesis examines the usability of Virtual Reality as an educational tool. Since Virtual R

This thesis presents and evaluates nineteen methods for combining up to eleven automated univariate forecasts. The evaluation is made by applying the methods on a dataset containing more than 1000 monthly time series. The accuracy of one period ahead forecasts is analyzed. Almost 3.2 million forecasts are evaluated in the study. Methods that are using past forecasts to optimally produce a combined

Under mina sista år som student på arkitektskolan i Lund har jag flera gånger stött på något som jag uppfattar som en diskrepans mellan människors upplevda trygghet av och den statistiskt kartlagda säkerheten för ett givet rum eller plats. Det är för mig intressant hur ett ställe som Stureplan i Stockholm, berömt för dess nattliv men också ökänt för dess höga nivåer av kriminalitet, kan uppfattas Several times over the last few years, I have come across what I identify as a considerable discrepancy between a person’s perceived sense of security and the statistically based safety of a given space or place. It is interesting that a place, like Stureplan in Stockholm, famous for its nightlife yet statistically proven to be “dangerous”, could be perceived as far more pleasant than the dark, bu

The torque capabilities of electrical machines are today limited by magnetic saturation and the ability to transfer thermal loads away from the machine. A solution to thermal management in power turbo-generators involves hollow conductors allowing direct cooling of the heat source thus increasing the power density significantly. The work done in this master thesis investigates the pos- sibilities

Föreliggande uppsats studerar sex handplockade bilder, enligt vissa kriterier, skapade av Jan Stenmark. Syftet med studien är att kartlägga hur bild och text skapar humor, och till undersökningen anpassas två analysmetoder, Jens Kjeldsens retoriska bildanalys och Brigitte Mral, Marie Gelang och Emelie Bröms kritiska retorikanalys. Strikta tillämpningar och förhållningssätt anpassas till objekten o

Sexuell konflikt uppstår när optimum för en viss egenskap skiljer sig mellan könen, och kan ske på olika nivåer. Ur ett evolutionärt perspektiv studeras det framförallt mellan gener (IRSC), eller mellan alleler inom en och samma gen (IASC). Det fundamentala problemet ligger i att honor och hanar delar genetisk arkitektur men har olika ekologiska krav och behov. Konflikten mellan de två könen hanIntra locus sexual conflict (IASC) occurs when sex-specific optima for a certain trait differs, and the trait is controlled by shared genes across the sexes. Sexual dimorphism is recognized to be a sign of previous or ongoing sexually antagonistic selection in separate sexed species, while hermaphrodites have been overlooked in the past due to their monomorphic appearance. Despite this, hermaphrod

Quantum thermal machines, a sub-field of quantum thermodynamics, are actively studied with the aim to understand the connection between quantum mechanics and thermodynamics. In this work, qubits are used as the active medium in an absorption driven heat pump. The dynamics of this thermal machine are computationally simulated by treating the qubits as an open quantum system interacting with three b

Creating music have always been a hard thing to do, as time have passed there have been much research done on the topic of creating high quality music. New approaches and theories are appearing on how to generate music, the latest one (as writing this paper) is based on deep neural networks. In this paper Nottinghams abc notation database will be the main training set used as training data for the

Studiens syfte är att utreda eventuella samband mellan avgifterna hos aktiefonder med svensk exponering och deras riskjusterade avkastning. Utredningen görs genom att beräkna de utvalda fondernas Sharpekvot och Jensens alfa från deras NAV-kurs på veckobasis med återinvesterad utdelning, där NAV-kursen inkluderar avdrag för fondavgift. Studiens tidsram är perioden 2007 till 2018, där både positiva

When adopting the eight Millennium Development Goals (MDGs), in 2000, the United Nations General Assembly recognised the importance of good governance in reaching them. This study examines the hypothesis that good governance has an impact on the achievement of the MDGs. It does so by conducting regression analysis on the impact of good governance on the MDG indicators for water and sanitation. The

Background The intense competition in the Telecom industry makes service providers invest heavily in acquiring new customers. In Telavox case, the majority of these initial expenses are related to the sales process. To be profitable it is necessary for the customers to generate a net profit during its time at Telavox that compensates for this initial expense, i.e. a positive Customer Lifetime Valu

Problem description: Mature industrial enterprises stand before the challenge of developing strategies and competitive advantage through their logistics services. The business development within logistics and distribution services is fast and rapidly changing as the customer experience is becoming increasingly important and the additional services are becoming an integrated part of the product off