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Quantum mechanical technologies often relies on the system being cooled to low temperatures. One way to achieve this is with measurement and feedback based cooling. In this thesis measurement and feedback on a quantum harmonic oscillator coupled to a thermal reservoir is considered. The Wiseman-Milburn equation is used with a linear feedback control to find the steady-state solutions for the first
Trots ökad medvetenhet om digitala hot är svaga lösenord och lösenordsåteranvändning fortsatt vanliga, vilket äventyrar informationssäkerheten. Integrerade lösenordshanterare, som de inbyggda i webbläsare och operativsystem, erbjuder ett potentiellt verktyg för att stärka säkerhetsbeteenden, men användningen varierar kraftigt. Denna kvantitativa studie syftar till att undersöka hur dessa verktyg p
The aim of this thesis is to investigate the mechanical response of paperboard in the out-of-plane direction by incorporating its microstructural characteristics, with a particular focus on fiber-fiber interactions and fracture mechanisms. These features are implemented into models of varying complexity to evaluate their influence on material behavior. Two fracture modeling techniques, the Extend
Carmilla (1872) is a foundational gothic novella that explores female intimacy, monstrosity, and transgression within a patriarchal context. While widely recognized for its depiction of same-sex desire and subversion of Victorian gender norms, the story also reveals a deeper network of violence that sustains social and gendered hierarchies. However, critical attention has often focused more on Car
NMDA receptors are ligand-gated ion channels assembled as heterotetramers composed of glycine-binding GluN1 and GluN3 subunits (GluN3A-B), and glutamate-binding GluN2 subunits (GluN2A-D). Their involvement in various psychiatric and neurological disorders makes them potential therapeutic targets. However, compared to the extensively studied GluN1/2 NMDARs, the functional, physiological, and pharma
This study investigated how acoustical challenges, specifically changes in signal-to-noise ratio (SNR), affect the neural tracking of attended and ignored speech in individuals with hearing impairment. The analysis began with the speech envelope and was progressively extended by incorporating phonetic information as well as outputs from all layers of OpenAI’s Whisper model. The goal was to gain a
Pythia with Rope Hadronization, and the Canonical-Statistical Model with strangeness undersaturation (γSCSM), have shown remarkably similar results when simulating strange hadrons yields relative to pion yields as a function of event-multiplicity. As the underlying assumptions in these models are very different, a novel observable is warranted. The aim of this thesis is to show that K0S/(π+ + π−)
Emerging storage devices, particularly ferroelectric tunnel junction (FTJ) memristors, offer a compelling solution for high-density storage as they form a type of non-charge based non-volatile storage capable of storing multiple bits in each device; however, their adoption is hindered by reliability concerns. This work addresses this by presenting a design and implementation of an efficient Error
Constipation and irregular bowel movements are a daily challenge in elderly care, especially among patients with dementia who struggle to report their own toilet habits. This thesis investigates the possibility of using millimeter-wave pulsed coherent radar to passively monitor toilet visits and estimate both stool consistency and excreted quantity of urine and feces. This involved constructing a
Power amplifiers play a crucial role in wireless communication systems. However, they can achieve high efficiency only when operating in the nonlinear region. To maintain linear output while operating in this region, several techniques have been developed, among which digital pre-distortion (DPD) is one of the most widely used. In this thesis, we designed and analyzed a digital predistortion (DPD)
Antimicrobial resistance (AMR) is a growing global health concern, driven by the overuse of antibiotics and a lack of new drug development. To address this challenge, alternative antibacterial targets involved in essential bacterial functions are being explored. In this study, three compounds were synthesized using N-acetylglucosamine as the starting material. One of these compounds serves as a ke
Dwarf galaxies are perfect candidates for studying dark matter due to their abundance in our Universe, low baryonic content and diverse appearance. They are considered as one of the most important probes of cosmological models, such as the most accepted ΛCDM, and are particularly important in the context of evolution of galactic environments. Satellite galaxies and their remnants can give us furth
This thesis investigates the relationship between regional disparities and the employment outcomes of Technical and Vocational Education and Training (TVET) graduates in Kenya, using logistic and ordinal logistic regression models. Drawing on nationally representative survey data and regional indicators, such as gross county product (GCP) per capita, urbanization rates and development expenditure,
The growing demand for sustainable and functional plant-based protein sources has positioned yellow pea (Pisum sativum) as a promising candidate in the development of next-generation food products. From a sustainability perspective, yellow pea fermentation represents an environmentally favorable protein source compared to animal derived alternatives. The nitrogen fixing capacity of yellow pea furt
Mienstrukturen, en delvis vattenfylld sänka i södra Sverige, bekräftades vara ett astroblem på 1960-talet. Strukturen bildades runt 120 miljoner år sedan. Dålig exponering av berggrunden i och runt sjön, på grund av tjocka lager glaciala sediment, har gjort geomorfologisk kartering och klassificering av impaktbergarter till en utmaning. Data angående kraterdiameter och morfologiska särdrag som exeThe Mien structure, a partly lake-filled depression in southern Sweden, was confirmed to be an impact structure in the 1960s. The structure formed about 120 Myr ago. Poor exposure of outcropping bedrock in and around the lake, due to a thick cover of glacial sediments, has made morphological mapping and impactite classification challenging. Constrains on crater diameter and morphological features
Title: Design and Development of a Digital RAM Tool for AUVs Authors: Oscar Cedell and Jacob Persson Supervisors: Johan Marklund (LTH), Gustav Rehnborg (Saab Naval), and Niklas Blomgren (Saab Naval) Problem description: Autonomous underwater vehicles (AUVs) are longlife, mission-critical systems for which life cycle cost is strongly affected by Reliability, Availability, and Maintainability (RA
The master’s thesis includes a torsional vibrations analysis of an engine crankshaft and transmission in a hypercar. A torsional model is implemented in order to analyze how excitations produced by the engine affect the vibrational dynamics of the system. This is done by analyzing resonance frequencies and response amplitudes at critical speeds. A frequency-domain driven Python model is built in p
Introduction: Pyruvate kinase M2 (PKM2) catalyses the final rate-limiting step of glycolysis and contributes to cancer metabolism through its ability to shift between different oligomeric states linked to the Warburg effect. Background: Poly(ADP-ribose) polymerases (PARPs), including PARP14 and PARP15, mediate ADP-ribosylation of target proteins and are involved in cancer-associated signalling pat
This study investigates how varying hyperparameters of the Synthetic Minority Over-sampling Technique (SMOTE) affects the stability of model explanations produced by SHapley Additive exPlanations (SHAP) and Local Interpretable Modelagnostic Explanations (LIME). By using an eXtreme Gradient Boosting (XGBoost) classifier trained on 11 medical datasets with varying imbalance ratios, four SMOTE parame
