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To regain mobility in an affected limb after a stroke it is important to be consistent with rehabilitation exercises. The purpose of this project was to create an active orthosis for the elbow joint. The intended use of the orthosis is to help stroke patients during rehabilitation and to enable the possibility to use the orthosis at home without the assistance of a physiotherapist or other help. T

Asfaltbeläggningar behöver fortlöpande repareras och slutligen bytas ut efter nötning och sönderbrytning men också av att asfalten förlorat sin eftergivlighet genom åldring. Det är en naturlig förändring som påverkas av luftens syre och solens strålning men också av ämnen i miljön. Tillvaratagen asfalt kan emellertid ges nytt liv igen, återvinnas, och användas på nytt som vägbeläggning. Det sker g

Nationer och aktörer världen över har satt upp klimatmål och strategier för att minska på sina utsläpp av växthusgaser i kampen för att uppnå 1,5 gradersmålet i tid. Norconsult som är ett konsultföretag verksamma inom samhällsplanering och samhällsbyggnad är ett av många företag som satt upp interna mål om utsläppsreduktion för att minska på verksamhetens egen klimatpåverkan. Norconsult hoppas på Global authorities and businesses around the world have come up with a joint climate goal, including strategies to reduce greenhouse gas emissions in an effort to fight and reach the “1.5 degrees” goal in time. Norconsult, which is a consulting company that operates within social planning, and infrastructural design, is one of many modern companies that have initiated their own internal climate go

Environmental policy should be made up of scientific evidence. This thesis paper supports science based policy and its formulation through innovative communication strategies. It is important to be innovative in communicating science when dealing with the policy community as there could be confrontations owing to the nature of relation between science and policy. This is where the professional env

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

A multi-pass Raman spectroscopy setup, consisting of a measuring cell built as a cavity, using two concave circular mirrors, has been constructed and optimized. As the light reflects between the mirrors, the Stokes Raman signal is enhanced with every pass through the cavity. The setup is tested by measurements of species in ambient laboratory air, N2 gas flowing through a transparent plastic tube,

Climate change and global warming is driving development toward use of more sustainable production processes such as microbial manufacturing of renewable compounds. Yarrowia lipolytica is a non-conventional, oleaginous yeast that can accumulate high amounts of lipids in response to stress conditions, and is therefore of special interest in the biotechnological industry. The goal with this study wa

This project includes the research and implementation of a high frequency phase-locked loop (30 GHz or more) for beamforming use in a phased antenna array. The phase-locked loop includes a quadrature voltagecontrolled oscillator with a 10% tuning range and 417 degrees of phase control with a 10 degree resolution, a current mode latch in the divide-bytwo configuration operates over the quadrature v

Recent developments in the field of optical clocks and quantum information have fueled the necessity for both fiber phase noise cancellation and laser stabilisation. The Quantum Information group at Lund University is conducting research on quantum computation experiments based on rare earth ion doped crystals and also application of slow light effects induced by spectral hole burning in these rar

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

Den svenska bostadsmarknaden står idag inför oanade prövningar. En ständig befolkningsökning och höjda priser på bostäder försvårar för vissa segment. Nyproduktionstakten de senaste åren ha inte varit vad som önskats, och flertalet fastighetsbolag har svårt att få ihop sina kalkyler. År 2002 lagstadgades en ny upplåtelseform i Sverige, kooperativ hyresrätt, med förhoppning att kunna få fart på nyp

We study a 1+1 dimensional Yang-Mills model in the light-cone gauge (the ’t Hooft model). The colour group is SU (N ) and we study the limit N → ∞, the limit is taken such that g²N is kept constant. In this limit the only contributing diagrams are planar diagrams without gluon-gluon interactions. Using this, it is shown that there are no free quarks in this model. The bound state wave equation is

In this master thesis we investigate the predictive performance of several well-known Value at Risk (VaR) estimation methods, given a specific company setting. The thesis is conducted at a Swedish financial institution that wants to be able to measure foreign exchange (FX) risk induced by cross-currency transactions carried out by the company. The goal of the thesis is to provide empirical evidenc

Efterfrågan av digitala verktyg i skolor har ökat de senaste åren och idag är det enligt Skolverket ett krav att använda digitala verktyg i matematik. Digitala matematiska verktyg kan förse elever med automatisk återkoppling och lärare kan anpassa sitt sätt att undervisa, baserat på elevernas progression. Trots att det finns flera fördelar med att inkludera digitala matematiska verktyg, finns det The demand for digital tools in schools has increased over the years and today it is a requirement from the Swedish National Agency for Education to use digital tools in mathematics. Digital mathematical tools can provide students with automated feedback and teachers can adapt their teaching strategy based on data from their students’ progress. Even though there are multiple advantages of includin

Embedded systems are hard to debug and the field of control software testing is relatively unexplored. Progress in these areas could provide better testing heuristics and safer systems. More specifically, hardware emulation is a potentially powerful tool that can help improve the speed and quality of the development cycle. Therefore, this study developed a hardware emulator for supporting embedded

Bakgrund: På grund av otillräcklig stöttning och anpassning inom grundskolan når mindre än hälften av barnen med autismspektrumtillstånd (AST) kunskapsmålen. Internationella erfarenheter och studier av arbetsterapeutiska interventioner för att stödja dessa elever visar på positiva effekter avseende aktivitetsutförande och skolresultat. I Sverige är dock användningen av arbetsterapeutiska intervent

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

Intelligent reflective surfaces (IRS) are envisioned to have a significant number of applications in future wireless network systems by reconfiguring the signal propagation to improve system performance. In particular, the IRS's cell elements can independently reflect the incident signal by tuning its phase and achieving passive beamforming to enhance the received signal of the user equipment.

Titel Riskhantering i Byggprojekt – Metoder och tillvägagångsätt för att hantera risker Författare Marc Carlsson & Simon Eriksson Handledare Radhlinah Aulin, Avdelningen för byggproduktion, Lunds universitet Examinator Anne Landin, Avdelningen för byggproduktion, Lunds universitet Syfte & mål Syftet med studien är att undersöka hur byggföretag utför riskhanteringsprocessen och hur de sTitle Risk management in construction projects - methods and approaches to manages risk Authors Marc Carlsson & Simon Eriksson Supervisor Radhlinah Aulin, Department of Construction Production, Lunds University Examinator Anne Landin, Department of Construction Production, Lunds University Aim & goal The purpose of the study is to investigate how companies perform risk management proce