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In this project, nanoimprint lithography has been applied to define gold particles on the surface of an InP wafer. For achieving this aim, a dry etching process has been developed to create resist undercut for the lift-off. In order to prepare the required undercuts, RIE parameters were optimized and desired undercuts were made at etch times of 80 s to 120 s. Also, to obtain anisotropy and high et
Solar power clearly has one of the greatest potential among renewable energy but a big setback is that it is still relatively expensive. Engineering of materials on a nanoscale, e.g. the growth of nanowires makes it possible to make semiconductor-materials with better optical properties while using less material than for traditional bulk semiconductors. This means that nanowire based solar cells h
Modified Atmosphere Packaging (MAP) is a technique for modifying internal gas atmosphere of the food package to slow deteriorative reactions inside the package and prolong shelf life of the product. However, due to current limitations of this passive technology, there might be some opportunities for introduction of active MAP through microorganisms. Therefore, the study is conducted on investigati
Mögel som växer inomhus har påvisats orsaka ohälsa som andningsbesvär, allergi och eksem. Eftersom vi tillbringar större delen av våra liv i inomhusmiljöer är det viktigt att hitta lösningar på detta problem. Eftersom det finns mögelsporer i luften och går det inte att undvika att få in dem i våra byggnader. Det som går att göra är att förhindra sporerna från att gro. Syftet med detta projekt har Mould growing indoors has been shown to cause health problems such as respiratory disorders, allergies and eczema. Since we spend most of our lives in indoor environments, it is important to find solutions to this problem. As mould spores are present in the air one cannot avoid getting them into buildings, but it is possible to prevent the spores from germinating. The purpose of this project was t
The study is based on semi-structured interviews with two music teachers, one at the elementary and high school Sankt Annæ Gymnasium (Copenhagen) and one at the elementary and high school Adolf Fredriks musikklasser (Stockholm). By asking more or less identical questions to both of them I could clearly see the differences between the two schools. At Sankt Annæ boys and girls have separate teaching
The long process of syncretization between Shinto and Buddhism has defined much of Japan's philosophical and theological history. This process was only interrupted with the Meiji Restoration, following which the Meiji government enforced an ideology of the two religions being completely separate as part of its State Shinto system. Countless temples and Buddhist treasures were lost in the proce
The aim of realistic graphics is the creation of images that provide the same visual responses that a viewer would experience in a real world scene. There are different rendering techniques that produce high dynamic range images that capture the full intensity range of a scene. These images cannot be reproduced on a standard display due to limitations in device hardware. Therefore, a high dynamic
Because of the increasing demand of low polluting and efficient diesel engines, numerous studies related to the different processes that take place in them are being carried out. This study treats the direct injection of fuel at high pressures (c.a. 1500 bar). Ignition is not simulated in this work since this is intended to be a previous step for future studies which include combustion. A combinat
N,N-diphenyl carbazolium salt has attracted interest for applications in anionic exchange membranes (AEM) due to its structural features and the high chemical stability that the compound exhibit. AEM are polymeric membranes with positively charged functional groups. They can be employed as electrolytes in alkaline fuel cells. In this project, different types of N,N-diphenyl carbazolium compounds w
Antagandet om att personer med ätstörningar är smala är fortfarande utbrett, trots att det finns ett signifikant samband mellan ätstörningar och obesitas. I linje med detta finns en kunskapslucka avseende skattningsformulär riktade mot att fånga ätstörningar och subkliniska besvär hos personer med obesitas. En systematisk litteraturöversikt genomfördes med syftet att hitta tillgängliga formulär, mThe assumption that people with eating disorders are skinny is still widespread, even though there is a co-occurrence between eating disorders and obesity. Despite this co-occurrence, there is a gap in the knowledge regarding questionnaires aimed at assessing eating disorders and subclinical symptoms for people with obesity. Therefore, a systematic review was conducted with the purpose of finding
The European Spallation Source ESS, under construction in Lund, Sweden, aims to produce high-brightness and intensity neutrons for a multitude of experiments upon completion. An efficient production of neutrons requires elaborate understanding of the moderation process which slows the neutrons from relativistic speed to a kinetic energy of meV. The moderator used at the ESS will be partially made
In this paper regularization of the correlation matrix between futures contracts is examined. With starting point in the recently established HPCA framework (Avellaneda, 2019), a couple of different extensions to the one-factor model is suggested. Extensions are made in terms of adjusting the model according to different cluster structures. The data consists of futures contracts on a wide variety
Streaming video over the internet can face issues when met with poor and varying network conditions, which can be especially noticeable when streaming live video such as security footage or video calling. To handle this, there exists congestion control algorithms that monitor network conditions based on feedback from the receiver and adapt the video output. This thesis aims to implement and compar
Retrieval orientations refer to cognitive states that, if adopted, tonically orients episodic retrieval attempts towards the sought-after type of information. Such orientations can enhance episodic retrieval by modulating the processing and effectiveness of retrieval cues. The current study investigated if retrieval orientations are adopted volitionally and spontaneously, as previous studies have
The purpose of this study was to find out how nudging can be used in mobility management for sustainability adaptment of people's travel patterns, and examine if there is measures in mobility management that can be interpreted as nudging. This thesis performed a practical qualitative test in which a mobility management measure in the form of a “ride an electric bike to work” campaign was intro
Income Tax-deduction for commuting expenses has been criticised and discussed for a long time without having reached any conclusions or reformations. Critical opinions in the debate are that a reformation would disfavour taxpayers living in the countryside with no options except car commuting and decreasing size of labour market regions. At the same time tax evasion is a huge problem because taxpa
Malware (malicious software) is becoming an increasing problem, as it continuously grows both in numbers and complexity. Traditional, signature based anti-virus systems are often incapable of detecting new, sophisticated malware, which calls for more advanced tools. So called sandboxes are tools which automate the process of analyzing malware by actually running them in isolated environments and o
The fact that educational buildings are places where the majority of us spend most of our formative years, their design plays an important part in improving the education level and well-being of society. A number of changes have been made to the traditional design of these buildings in the last few decades and the old education system, where the teacher solely acts as an informer and the children
This report describes a part of the product development process for a mechanical adjustment of the head pressure in an extruder at Tetra Pak. The pressure is adjusted by a valve that increases or decreases the pressure by moving a valve stem. In the current solution the valve stem is moved by hand, which will no longer be effective when Tetra Pak streamlines the extruder. The project also includes
