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Enzymer är biologiskt aktiva molekyler med en katalytisk förmåga. Detta innebär enzym kan medföra en omvandling av ett ämne i en reaktion som normalt inte sker spontant. Laccas är ett enzym som kan bryta ner (oxidera) fenolföreningar, och i naturen förekommer det i växter, svampar och bakterier där det fyller olika funktioner.In order to broaden the use of laccase and increase its economic practicability for industrial oxidative processes, we have immobilized the enzyme in cross-linked enzyme aggregates (CLEA). The immobilization was carried out in two steps consisting of 1) precipitation- and 2) cross-linking of the enzymes. A factorial design was used in order to reveal the importance of different process parameters

This thesis and technical report concentrates on distributed control using a distributed model predictive scheme. The model of a two room house and three room houses is build and a distributed model predictive control (MPC) algorithm is implemented in order to reach specified room temperatures with minimized energy effort in each room. For reference tracking Target Calculation and the delta input

Model-Based Design is a development method that is becoming popular to use when creating control systems. In this thesis a demonstration of the advantages of using this method is made for Combine Control Systems AB. The 3D simulation software IndustrialPhysics is used to represent a real process in form of a gantry crane. A controller for this crane is developed in Simulink and Model-in-the-Loop (

The integration of multiple data sources and the convergence of process control systems and business intelligence layer such as the enterprise resource planning (ERP) are paving the way for important progress in plant operation optimization. Numerous companies offer “Analytics Services” to leverage this newly available mine of data but applications still appear to be limited to certain specific t

In Nampula Province, Mozambique, locating productive wells is a problem due to the heterogeneity in local geology, which consists of mainly weathered crystalline rock. This study estimates hydraulic conductivity of 10 hand pumped water wells in rural areas of Nampula Province using slug tests, and is a follow up of Andersson and Björnström (2013) and of Enkel and Sjöstrand (2013). This thesis aim

Zabrze is a medium size town of 200 000 inhabitants in the region of Upper Silesia, Poland. The development of the town was originally based on the exploitation of heavy industries. In the past few years Zabrze has, however, moved towards more service and tourism oriented industries. As part of this journey, the city of Zabrze sees the need to improve its existing waste management system. This rep

We present simulations done on the onset of common envelope evolution with giant donors by taking into account the mass loss through the outer Lagrange point and the forming of the common envelope. In addition we apply proper stellar models and evolve our simulations using an Runge-Kutta integrator with adaptive step-size. We show that each of these processes are significant in the onset of common

The Modelica language is an object-oriented, equation-based language used for modeling and design in many different domains and for various physical applications. In order to exchange models both between Modelicabased tools and other tools the Functional Mock-up Interface (FMI) has emerged. This interface enables exchange of virtual models between manufacturers and/or divisions within a company. T

The aim of this sociological study is to explore and to understand mechanisms of power being embedded in daily procedures of detention establishment with the focus on the case officers’ work tasks. In the study the emic approach is being used in order to understand from within power at detention. Observations, field notes, interviews and written documents constitute the empirical material being co

Det mänskliga ögat observerar världen i formen av synligt ljus med olika färger. Allt ljus kan beskrivas som elektromagnetiska vågor med en viss våglängd, längre våglängder ger rött och kortare ger violett ljus. Utanför det för ögat synliga ljuset finner man röntgenstrålning med våglängder mycket kortare än både violett och ultraviolett ljus. Ända sedan dess upptäckt för över 100 år sedan har man The use of laser based plasma x-ray sources (LPXS) has quickly expanded during the past decades due to rapid development of ultrafast laser systems. These sources are used in many research applications such as emission, absorption and particularly time-resolved spectroscopy. From the LPXS x-ray pulses are generated when an intense laser pulse is focused onto a liquid or solid interface in gas or v

JAKTEN PÅ VÄLGRUNDADE BESLUT – HUR ANVÄNDS RISK- OCH SÅRBARHETSANALYSERNA? För att klara de påfrestningar som vårt samhälle ställs inför krävs det att de beslut som tas är välgrundade. Syftet med denna studie är att belysa hur risk- och sårbarhetsanalyser används som ett verktyg för beslutsfattande. Trots att verktyget är värdefullt och uppskattat av de som jobbar inom området så är kopplingarna Risk and vulnerability assessments are an important part of the Swedish disaster management system and can be used as input for decision making. Today disaster management decisions are made on all levels in Sweden depending on the extent of the decisions. The purpose of this thesis has been to perform a descriptive study of how risk and vulnerability assessments are utilised as input to decision m

The focus of this master’s thesis was aimed at E.ON’s electricity saving project, 100koll, in collaboration with IT-consulting firm Data Ductus.The 100koll users demand high availability, which creates a complex underlaying system-infrastructure. The processes of deploying and preparing new releases to the system is presently done manually. Data Ductus is requesting an investigation on whether or

Reporting radiographers can write diagnostic statements on radiological images. Unlike in Denmark, Sweden has not implemented reporting radiographers. The aim of the study was to examine how Danish and Swedish radiographers’ view the use of reporting radiographers through the contexts profession and professional development. Fourteen radiographers from two Danish and four Swedish hospitals were in

The Arab spring caught both scholars and regimes by surprise, bringing rapid changes to a previously thought stable region. The events of the Arab spring did not impact all Arab states in an equal matter though, and while some regimes fell, other seemed to be largely unaffected. Applying theories of youth bulges and demographic transition this study analyses the age-structure and GNI per capita fo

The profound impacts on human rights brought about by international and regional trade agreements have increasingly been recognized by scholars in the fields of human rights and trade, as well as international organizations and civil societies. Most notably, the intersection between human rights and trade has been reaffirmed by the United Nations, evidently in the reports by the United Nations Hig

To suggest that slums exist in Sweden is still rather controversial. However, several cases of highly unacceptable housing conditions have been revealed lately. The aim of this study is to examine whether there is slum in Sweden today, and further and more importantly, to identify the mechanisms that enables slum to arise. The fundamental theoretical perspective for the essay lies in “the right to

Som minst är alltid 5% av jordens yta täckt av havsis. Det gör att isen har en avgörande roll i klimatet, särskilt vid polerna, då den påverkar utbytet av värme, massa och rörelse mellan havet och atmosfären. Ett snötäcke ovanpå isen förstärker ytterligare effekterna av isolering och reflektion. Havsisen och snön är av stor betydelse för det globala klimatsystemet. Dock är det svårt att inhämta dThe sea ice covers approximately 5% of the Earth’s surface at any given time and it plays an important role in the polar climate system affecting the heat, mass and momentum exchange between the atmosphere and the ocean. The snow cover on top of the sea ice affects its insulating and reflective properties and thus key figures in the climate system feedback loop. Sea ice and snow is of significant

This essay should be regarded as an artifact study and as a foundation for continued research. As very little has been written about younger blackware, the focal point of this study is on key problems such as dating, function and production. The material of the study is from the excavation of Kv. Apotekaren 4, carried out 1979-1980. The stratigraphy of the site was well dated with dendrochronology

Målet för hälso- och sjukvård i Sverige är en god hälsa och en vård på lika villkor för hela befolkningen. Hälsovården för barn påverkas av i vilken utsträckning deras föräldrar kan tillgodose sig den information, hjälp och råd de får i barnhälsovården. Syftet med denna studie var att belysa barnhälsovårdssjuksköterskans upplevelse av att främja barnets hälsa i familjer där språket är en barriär.