Filetype
Polymers of N-substituted glycine (NSG) or as they are also called, peptoids, have shown potential in biomedical applications due to proteolytic resistance, among other interesting properties. In this thesis project, two synthetic routes have been performed and evaluated to achieve a better understanding of large-scale syntheses of peptoids as a bioinert coating for nanoparticles. The primary fo
Multiple modern methods of statistical feature extraction and machine learning are applied to classification of encoding and retrieval of episodic memories us- ing electroencephalogram (EEG) recordings. Raw data, different time-frequency methods, and multiclass common spatial patterns are used for statistical feature ex- traction. For each type of feature extraction multiple machine learning algor
Since the purchasing expenditure of many companies is such a large part of the total cost and 99,8 % of companies are classified as Small and Medium Sized Enterprises (SME), one might expect that theories on purchasing strategy would not only be conducted for large companies but also SMEs. In order to fill this gap in theory, this thesis aims to create a purchasing strategy framework for SMEs in t
Many people today possess a private digital photo collection. Such collections are often just chronologically sorted. One way to make photo browsing more interesting would be to suggest semantically related photos to a currently viewed photo, and if, in addition, such a relationship could be justified in words, that would create extra value for the user. To find a solution to this problem, the ap
There is a lot of discussion going on how to adapt to the changing climatic conditions, especially in countries where financial resources are limited. The built environment has been identified as a key area of intervention. As disasters, such as typhoons, can devastate entire cities, it is essential that the most important buildings in these cities, the lifelines so to speak, are resilient and can
A fleet of autonomous sailboat could change our perception of the planet. An autonomous sailboat could not only conduct environmental research but also perform month long operations through the energy efficient wind propulsion. This thesis is the work behind the development of an autonomous catamaran model sailboat. A new mathematical model is brought forward and implemented for simulations perfo
Detta examensarbete undersöker styvhetsegenskaperna för tre armeringsmaterial: ferrocement, glasfiber- och kolfibertextilarmering, tillämpade för skalkonstruktioner. En av de strategier som användes för undersökningen var ett mekaniskt försök med kompositarmerade betongbalkar. Det mekaniska försöket skulle sedan verifieras med numeriska och analytiska modeller. Jämförelser mellan de mekaniska och The purpose of this master’s thesis is to investigate the stiffness properties of three reinforcement materials for concrete shell structures: ferrocement, glass-fibre textile and carbon-fibre textile. Three types of strategies were used to analyse the properties of the materials, an analytical model, experimental beam prototypes and a numerical analysis. Immediate comparison of the mechanical exp
Abstract I would like to thank my mentor Richard Murray at the Control and Dynamical Systems Department of California Institute of Technology (Caltech) for giving me the opportunity of conducting my master's thesis at Caltech and for his support during the project. I would also like to thank my other mentor Anders Rantzer at the Department of Automatic Control of Lund Institute of Technology u
Purpose: The purpose of this thesis is to investigate whether the length of the maturity profile of a firm’s debt has any implications for the capital structure. Theoretical perspectives: A deductive approach, using econometric methodology to examine the correlation ( if any) between the selected variables, and the significance (if any) of that correlation. The output of our econometric model is f
The aims of the thesis are to investigate the estimation power and the normality of standardized residuals for Generalized autoregressive conditional heteroscedasticity models (GARCH). We facilitate the analysis by only dealing with GARCH(1, 1) models. We take use of MATLAB as the statistical programming tool for the simulation of the data and the estimation. We define the meaning of estimation
This thesis project investigates the topic of joint optimization for crest factor reduction and digital predistortion blocks, which are used for digital correction of analogue impairments in digital radio front ends. The work first investigates the effects of joint parameter variation of the above blocks on the global performance and computational cost of the digital chain, given reference CFR and
This thesis explores the provision of memorable digital cultural experiences (MDCEs) for young audiences, thereby addressing the existing gap in the literature concerning the experience economy, digitalization in the cultural sector, and memorability of experiences. Based on qualitative in-depth interviews, the research explores cultural consumption trends, uncovers factors contributing to the mem
The development of generic pharmaceuticals includes extensive data on equivalence with the reference listed drug is required by the European medicinal agency (EMA) and the North American equivalent. Equivalence must be proven for rheology, microstructure, and performance. This is a costly and time-consuming process. To reduce the costs, it is of interest to investigate if the release profile (perf
BACKGROUND. Early and accurate detection of infectious respiratory diseases like COVID-19 and tuberculosis (TB) plays a crucial role in effective management and the reduction of preventable mortality. However, molecular diagnostic tests for these infections are expensive and not easily implementable in resource-limited settings, which suffer the majority of the burden. Lung Ultrasound (LUS) presen
Aims Short-term ambulatory electrocardiogram (ECG) monitoring is often used to assess premature atrial complex (PAC) and premature ventricular complex (PVC) frequency, but the diagnostic reliability is unknown. The objective of this study was to study the day-to-day variability of PAC and PVC frequency. Methods We used 14-day full-disclosure mobile cardiac telemetry recordings without atrial fibri
Non-technical summaryBrazil – one of the world's largest biocultural diversities – faces high rates of habitat loss, social inequality, and land conflicts impacting indigenous and local peoples. To challenge that, Brazilian sustainability science and education needs to be strengthened. We searched for elements in ongoing bottom-up sustainability social movements that can help serve that purpose. W
De senaste teknologiska framstegen har lett till skapandet av högspecialiserade system inom olika industrier, vilket möjliggör uppgifter som tidigare varit otänkbara. I takt med att den globala efterfrågan på hållbara och effektiva energilösningar ökar, har behovet av innovation inom teknik aldrig varit större. Dessa framsteg representerar transformativa förändringar som omformar hela sektorer. FrRecent technological advancements have led to the creation of highly specialized systems across various industries, enabling tasks that were once beyond imagination. As the global demand for sustainable and efficient energy solutions grows, the urgency for innovation in technology has never been greater. These advancements are not simply incremental but represent transformative changes that are re
Sound event localization and detection (SELD) systems using audio recordings from a microphone array rely on spatial cues for determining the location of sound events. As a consequence, the localization performance of such systems is to a large extent determined by the quality of the audio features that are used as inputs to the system. We propose a new feature, based on neural generalized cross-c
