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An integrated lunar habitat system is proposed, combining mycelium-based biological materials, autonomous robotic construction, and modular architectural strategies to enable long-term adaptation in extreme environments. Before human arrival, robotic units construct the primary structure and initiate mycelium growth along interior surfaces. This fungal layer functions as a living sensor network, w
The QR decomposition is used to solve least squares problems, systems of equations and other important linear algebra tasks. We consider the computation of the QR decomposition for tall-skinny matrices, using the Cholesky decomposition as an intermediate step. To improve efficiency, we introduce randomised numerical linear algebra and sketching as a tool for improving computational efficiency. Num
Denna studie undersöker hur aktörer inom den europeiska vinindustrin uppfattar värde, beredskap och utmaningar kopplat till datainsamling till följd av nya EU-direktiv, särskilt CSRD och e-märkningsdirektivet. Resultaten indikerar bristande beredskap bland både producenter och importörer, där mindre aktörer i synnerhet upplever regelverken som komplexa och resurskrävande. Datahanteringen präglas i
Palm recognition is a biometric authentication method that uses the unique patterns of the palm for identification. The system requires users to position their hands accurately for biometric data to be captured. This thesis aimed to design an interface that supports accurate hand placement. The design process was conducted in three iterations, each including needs assessment, idea generation, prot
This thesis explores the feasibility of using regenerative spectral hole burning (SHB) in cryogenically cooled Tm³⁺:LaF₃ crystals as a laser frequency reference for Ultrasound Optical Tomography (UOT) systems. UOT is an imaging technique that combines the deep penetration of ultrasound with the high contrast of near-infrared light, offering significant potential for biomedical imaging. A major cha
Traditional mechanical methods for the recycling of polyethylene terephthalate (PET) fail to produce high-quality materials suitable for upcycling. Alternatives like chemical recycling face challenges due to the high energy demands, concerns, and the cost of specialized equipment. Enzymatic recycling has emerged as a promising alternative, offering a simple process under environmentally friendly c
Kidney transplants are the most common type of organ transplant globally. While immunosuppressants targeting the adaptive immune systems have been successful in improving short-term outcomes, the role of the innate immune system is relatively less studied, and has come under attention as a potential driver of the inflammation causing poor long-term outcomes. In this thesis, sparse statistical meth
This thesis investigates superconductivity in novel planar Josephson junctions fabricated from a hybrid Al/EuS/2DEG (InGaAs/InAs/InGaAs) heterostructure. Using electron-beam lithography, selective etching, and atomic layer deposition, Josephson junction devices, constrictions, and SQUID geometries were fabricated and a selection of the devices were characterized at millikelvin temperatures. The me
Välgrundade förutsägelser av olika livsmedels kvalitet och säkerhet är mycket viktiga för att förebygga matsvinn. Ofta görs dessa förutsägelser med hjälp av lagringsstudier där produkten lagras i förhållanden som simulerar produktens väg från producent till dagligvaruhandel. Dessa studier kräver mycket resurser och tid, vilket belyser behovet av accelererade hållbarhetsstudier – som är baserade påAccurate predictions about the quality and safety of food are critical to prevent food waste. Often, food is stored in conditions simulating a product’s way from production to retail, which allows producers to assess quality and safety during the product’s shelf life. These storage trials are costly and time-consuming, meaning that there is incentive to reduce the testing time. Accelerated shelf-l
The Rohingya crisis is a profound human rights and humanitarian disaster, representing one of the most severe contemporary instances of statelessness. This condition is characterised by the systematic denial of nationality and fundamental rights, largely facilitated by Myanmar's discriminatory state-institutionalised practices and its Citizenship Law of 1982, which excludes the Rohingya from r
As global supply chains become increasingly vulnerable due to geopolitical instability, rising protectionism, and sustainability pressures, the trend of reshoring has emerged as a strategic response among multinational enterprises (MNEs). This thesis explores the drivers behind the reshoring decisions of seven Swedish MNEs and examines the entry modes (EMs) through which these firms implement thei
This thesis evaluates three interest rate models the HW1F, HW2F, and CIR++ from a risk management perspective. Through simulation, we examine their ability to generate realistic yield curves, as well as their impact on exposure metrics and CVA in different market environments. The CIR++ model consistently produces the highest and most conservative PFE estimates while also maintaining calibration
The importance of Disaster Risk Management (DRM) is growing as global risks increase and more actors implement DRM strategies. However, the unpredictable and complex nature of disasters and other risks makes it difficult to train DRM skills in advance. Serious games, which are games designed for educational purposes, offer a promising way to build these skills by simulating real-world challenges i
This research characterized the barrier properties and transport mechanisms of multilayer films comprising polylactide (PLA), chitosan, and nanocelluloses extracted from agricultural by-products. The investigation employed complementary analytical techniques to evaluate water vapor and oxygen transport behavior, comparing cellulose nanofibers (CNF) and cellulose nanocrystals (CNC) derived from cor
The anterior cruciate ligament (ACL) is the most frequently injured ligament in the knee, mainly due to its role as a primary joint stabiliser. In sports science, non-contact ACL injuries are commonly linked to change-of-direction (COD) manoeuvres, especially in multidirectional team sports. Given the long rehabilitation times and risk of long-term consequences, ACL injury prevention remains a maj
This work seeks to investigate and answer how different perspectives during the sketching process can influence a project’s design and decision-making, as well as how it is expressed in the finished result. I mean to exemplify how the approach can be used as a tool to more strategically and fundamentally explore one’s own sketching process, to understand what really control and motivate critical d
Solar Energetic Particle (SEP) events, resulting from intense solar eruptions, can trigger significant short-term increases in the production of cosmogenic radionuclides such as 10Be, 14C and 36Cl. This thesis investigates the potential occurrence of SEP events around 14,300 and 14,700 BP, prompted by pronounced excursions previously identified in 10Be and 14C records. To examine these intervals i
Merging of maps, such as 3D point clouds obtained from Structure-from-Motion or visual SLAM, can enhance robustness and expand covered areas in applications like multi-robot systems or augmented reality. When direct data fusion is difficult, an alternative approach is to align pose trajectories. This work investigates the use of rotation averaging as a method for indirect map merging, especially f
This thesis presents the design and implementation of a web-based simulator, developed to support students in the introductory course in automatic control at LTH. The simulator is meant to serve as a preparatory tool for the laboratories that revolve around two interconnected water tanks, and provides an interactive environment for students to explore system dynamics and PID control prior to atten
