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Populärvetenskaplig sammanfattning Supramolekylär kemi är en relativt ny gren av kemin som involverar stora kemiska strukturer/enheter. Ett exempel på en ”supramolekyl” man dagligdags träffar på är klorofyll. Klorofyll (Figur 1 till vänster) består av en metall (magnesium) och en större kolvätestruktur som kallas porfyrin. Porfyriner finns i många olika varianter och används ofta i olika biologiskDuring the time range of this project, various compounds were synthesized. All of them will be used to synthesize the final compounds 2 and 3. Consequently, the compounds will build up a supramolecular cavity, which will be used to study a catalytic epoxidation of olefins. The aim of the project was furthermore to gain experience in laboratory work.

This report is the result of a Master Thesis project in Mechanical Engineering with Industrial Design at the Faculty of Engineering LTH at Lund University. The project was conducted in collaboration with ArjoHuntleigh AB, a company based in Malmö, Sweden. ArjoHuntleigh develops integrated healthcare solutions for people with low mobility and thereto related problems. The report describes the deve

Metallic hip prosthesis is an implant that gets more common and comes with problems like metallosis (inflammation due to metallic debris). Magnetic resonance imaging (MRI) which is a superior method when imaging soft tissue (compared to other medical imaging techniques) is affected by metal implants and will result in a distorted image. View Angle Tilting (VAT) and Slice Encoding for Metal Artifac

The purpose of this study is to design and investigate a pulsating heat pipe device (PHP). A PHP is a two-phase flow heat transfer device which can handle high heat fluxes with passive internal flow. It is made of a continuous loop serpentine, partially filled with a working fluid that can cool systems, such as electronic devices. It differs from a conventional heat pipe device in design and opera

Cities face multiple social-ecological challenges, which nature-based solutions (NBS) promise to address. Strategies to mainstream NBS have only achieved partial success, hence recent studies suggest that inner dimensions - mindsets and transformative capacities - must be mainstreamed simultaneously. This study investigates municipal employees' engagement with inner dimensions, its impact on s

Som en del i utvecklingen mot grönare och miljövänligare processer, samt ett behov av ytterst specifika reaktioner, vill AAK AB utvidga sin användning av lipaser i sin produktion av strukturerade triacylglyceroler (STAGs). AAK vill bygga upp ett bibliotek av utvärderade lipaser. Syftet med detta examensarbete är att bidra till detta bibliotek genom att karakterisera en grupp kommersiellt tillgänglAs part of a switch towards more green and environmentally friendly processes, together with a need for highly specific reactions, AAK AB wants to broaden their use of lipases in the production of structured triacylglycerols (STAGs). AAK are working on creating a lipase library where several lipases are evaluated, this master thesis aims to contribute to this lipase library by characterizing a sel

Entreprenörskap karaktäriseras av en snabbföränderlig och osäker miljö. I tillägg har intressenter i området olika perspektiv och bekymmer samt är beroende av varandra. För att en ny affärsverksamhet ska lyckas är finansiering och humant kapital ofta viktiga faktorer, särskilt inom tech, och i dagsläget är det svårt att skapa/uppnå ”rätt” koppling i samspelet mellan unga företag (ideators), investThe field of entrepreneurship is characterized by a fast-changing and uncertain environment. In addition, stakeholders within the field all come with different perspectives and concerns and are dependent upon each other. For a new business to be successful, financing and human capital are often determinants, especially within tech, and it is difficult to attain the “right” connections between youn

This thesis explores the impact of extreme weather events during gestation and infancy on multiple outcomes, especially early labour income. The subjects are Indian children born between 1993/94 from the Young Lives longitudinal study. The weather shocks are extracted from the NOAA geo-referenced weather data. Thanks to Mediation Analysis methodology applied, not only the Direct Effects of early l

Femtosecond pulse shaping is a versatile tool that enables the generation of ultrashort laser pulses with nearly arbitrary temporal shapes. Among others, the technique is of use in ultrafast spectroscopy experiments where it can be employed for dispersion control and the generation of well-defined laser pulse sequences. In this work, a Fourier-transform pulse shaper based on a pixelated liquid crys

In this thesis work, a highly linear passive attenuator and mixer were designed to be used in a wide-band Transmission Observation Receiver (TOR). The TOR is a low IF receiver that accepts RF frequencies from 2GHz to 7GHz, and produces corresponding IF bandwidths of 280MHz to 990MHz respectively, using low side LO injection. The dynamic range is maximized by using passive topologies for both the a

The Laser Interferometer Space Antenna (LISA) is a space borne gravitational wave detec- tor set to launch in 2034, with the objective of detecting and studying the Gravitational Waves (GWs) of our universe. So far, ground-based detectors such as the Laser Interferometer Gravitational-Wave Observatory (LIGO) have been successful in detecting GWs, but the limitations of ground based detectors is wh

Machine learning as a field has expanded in an explosive manner, with more companies interested in using the technology. One of these companies, Spiideo, uses Machine learning to automatically stream and record sports, highlighting key events - all automatically without a cameraman. However, these cameras have to undergo a lengthy calibration process involving manual feature extraction. This work

Det här examensarbetet utvecklar ett koncept för infästning av fenor på jetboards som inte intränger på befintliga patent. Det resulterande konceptet medför handlingsfrihet (FTO) och följaktligen tillåter produktion av fenor med originell design. FTO innebär möjligheten till att producera och sälja en produkt utan rättsligt ansvar gentemot ägare av patent. Examensarbetet presenterar och diskuterarThis master thesis generates a concept for the means of attaching fins onto jetboards without infringing on existing patents. The resulting concept establishes freedom to operate (FTO) and enables production of fins with original designs. FTO meaning the possibility of producing and selling a product without legal liability to any patent holders. The thesis further presents and discusses user need

Better access to finance and higher education levels in a country are two major policy areas of governments and international development cooperation organisations for the goal of reducing poverty. Microfinance has become a popular instrument to facilitate access to finance, but comparative evidence on a macro scale is scarce. This thesis examines the relative importance of the two policy areas us

Ultra millimeter-wave (mmWave) radars have become a vital sensor in automotive, surveillance, and consumer electronics thanks to its precise measurements and low power consumption. However, they required a precise control to coordinate their different modules and produce meaningful data. In this thesis work, we introduce an approach to perform the control and coordination of the radar based in mic

The test-fixture is a device used for testing of electronic circuits in production, that is produced by the Lund based company mikrodust AB. In the test-fixture, cameras are both used for supervision of products-in-testing and in the products themselves. This poses a challenge due to the compact size of the test-fixture and the number of mechanical elements. This thesis aims to investigate how c