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This work presents the systematic design and optimization of a compact quad-element MIMO antenna system in a roof cavity for the expected channel behavior at a 700 MHz LTE band. Beginning with a standard low-profile antenna element, the desired radiation pattern is synthesized by structural modification. The configuration for a quad-element design is then optimized. The results show that the propo
Brain-computer interfaces (BCIs) translate brain activity into digital commands for interaction with the physical world. The technology has great potential in several applied areas, ranging from medical applications to entertainment industry, and creates new conditions for basic research in cognitive neuroscience. The BCIs of today, however, offer only crude online classification of the user's cur
Låg tillgänglighet till elektricitet är ett stort problem i Kenya, framförallt på landsbygden, och det förväntas fortfarande dröja flera decennier innan elnätet har nått ut till alla delar av landet. Detta innebar att det finns ett stort behov av andra lösningar som kan förse dessa områden med elektricitet. En av dessa lösningar är Solar-Home-System (SHS), ett system som kan ge elektricitet till lA problem in Kenya is the lack of access to electricity, mainly in rural areas. It will take many decades for the main grid to reach all rural areas wherefore several off-grid electrification options have been put forward to solve this issue. One of them is the Solar Home System (SHS), which is an off-grid solar product that can be used for applications such as lamps, radios, TVs and charging mobi
The case company endeavors to be fossil free by 2030. In order to achieve that objective, the current packaging solution for kitchen and laundry appliances containing EPS plastic must be replaced with a packaging built on only fiber-based materials. This master thesis is focusing on identifying the packaging requirements for a replacement and how these requirements influence the packaging material
The aim of this study is to analyse and understand how the problem of establishing consent is represented in Swedish rape judgements before and after the consent-based legislation was enacted in 2018. The purpose is to elucidate differences in the court’s assessment of consent, as well as generate an understanding of how the court may maintain and reproduce problematic elements which are stereotyp
The purpose of this paper was to research how environmental concerns and sustainable thinking could be integrated into the design process of Electrolux, a Swedish home appliance manufacturer. The research will hopefully help the Electrolux industrial design department improve in the area and prove as a good case study for other companies or academic institutions. Electrolux conducts much research
Våldtäkt är ett ord som väcker många känslor och associationer hos människor i dagens samhälle. Alla har på något sätt kommit i kontakt med det, även om han eller hon inte själv varit drabbad eller känner någon som har. Med jämna mellanrum är våldtäkt och sexuella övergrepp i stort ett stort och hett ämne i media. Tyvärr speglar inte alltid deras bild av hur det ser ut, den som finns i verkligheteRape is a word that arouses many feelings and associations of people in today's society. All have somehow come into contact with it, even if he or she has not personally been affected or knows someone who has. Periodically, the rape and sexual abuse in general is a great and hot topic in the media. I do not always reflect their view of how it looks in the real world. It's easy to think and
The purpose of this study is to investigate different experiences of domestic, socio-cultural and political life of Bangladeshi diaspora women, living in Scandinavia (especially in Sweden and Denmark). This has done by analysing different life experiences of 22 women (11 in Malmö, Sweden and 11 in Copenhagen, Denmark) who have all been living in these western societies as immigrants. The study inc
This thesis is a concept study performed at Caran AB by order of Volvo Car Corporation, VCC. The background is a market research performed by VCC. From the research, a need for a product that facilitates reaching the trunk level in Volvo’s SUV, XC90, was recognized. It was also found, that dogs seem to find it difficult to get up in the trunk, why dogs have been accounted for during the developmen
In the rapidly advancing domain of autonomous vehicle technology, the management of intersection traffic emerges as a demanding challenge. This paper describes the development and implementation of a novel testbed designed for the investigation of an autonomous intersection management system (AIMS). The research primarily focuses on the complex coordination required among autonomous vehicles for e
High-dimensional problems have long been considered the Achilles' heel of Bayesian optimization. Spurred by the curse of dimensionality, a large collection of algorithms aim to make it more performant in this setting, commonly by imposing various simplifying assumptions on the objective. In this paper, we identify the degeneracies that make vanilla Bayesian optimization poorly suited to high-dimen
The physical layer foundations of cell-free massive MIMO (CF-mMIMO) have been well-established. As a next step, researchers are investigating practical and energy-efficient network implementations. This paper focuses on multiple sets of access points (APs) where user equipments (UEs) are served in each set, termed a federation, without inter-federation interference. The combination of federations
Sub-THz deployment is challenging due to high propagation losses, necessitating dense deployment. To reduce cost, RF signal can be distributed via plastic fiber to remote radio units to increase coverage area. In this paper, we propose an antenna-in-package concept for the single-layer substrate on low-cost embedded wafer level ball grid array (eWLB) packages. To suppress the distortion in the bro
This paper presents bounds on radiation efficiency and gain for microstrip patch antennas, demonstrating close alignment with the performance of classic antenna designs. These bounds serve as effective benchmarks for assessing antenna performance and evaluating trade-offs and design feasibility. The study particularly addresses the trade-off between miniaturization and performance by comparing bou
This paper gives a global solution to an H-infinity control problem for systems with symmetric state matrix and state-dependent input matrix. A simple, closed-form expression for the minimizing controller is obtained. This is in contrast to already established theory in which nonlinear H-infinity problems are solved locally. The result is then illustrated through an example, and the potential for
This study applies a spatial multi-criteria analysis to assess ground suitability for pier-supported viaduct railways using the Analytical Hierarchy Process (AHP). By integrating expert judgments, the analysis evaluates six key geotechnical categories—soil type, soil depth, rock type, slope, wetness index, and groundwater occurrence—to map ground suitability. Three weight normalisation methods wer
Objectives: This is a protocol for a Cochrane Review (intervention). The objectives are as follows:. To assess the benefits and harms of individualized developmental care interventions for promoting development and preventing morbidity in preterm infants.
Urban land-use planning, which is a useful tool for the sustainable development of a city, is a complex decision making process. However, the modern GIS technologies facilitate such complex jobs in two ways – (i) GIS allows to work with large numbr of datasets, (ii) a number of methods, techniques or models could be embeded in GIS for land-use suitability analysis. Analytical Hierarchy Process (AH
