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Study of a super capacitor solution as a replacement of an energy storing motor of 1500kW at OKG3 nuclear reactor

The reliable operation of nuclear reactors is contingent upon precise control mechanisms for critical components, such as the head circulation pumps. This master thesis investigates an innovative approach to address the ramp-down speed of these pumps during external electrical grid failures by exploring the application of a supercapacitor group. Presently, the existing solution relies on a fly-whe

Plant trait variation along pollinator availability gradients in Scanian grasslands

Flowering plants depend on pollinators for reproduction, and this entails selection on plant traits linked to phenology, attractiveness and pollination efficiency. Current environmental changes are however acting upon both parties, which in turn affects the interactions between them. In order to better understand how these changes manifest, this study looked at five plant species in semi-natural g

Metod för energirenovering av miljonprogramshus

Under det svenska miljonprogrammet byggdes drygt en miljon bostäder under en 10-årsperiod, där lamellhus i 3-våningar är den dominerande hustypen. Produktionen var industriell och rationell med enhetliga metoder och utföranden. Byggnaderna har under åren haft varierad grad av underhåll, men genomgående för husen har generellt varit bristfällig skötsel. Gemensamt för en stor del av byggnaderna är sA fifth of Sweden's current housings were built during the Million Programme (1965 - 1974). A substantional amount of these houses are in a great need of renovation, and furthermore, these houses do not have the same energy performance that modern houses have. As a part of decreasing the building sector's carbon emissions, reaching the climate targets and at the same time utilize already e

Utforskande av ett användbart hemsideverktyg för föreningslivet

Sveriges föreningskultur bidrar till att miljontals individer årligen får ta del av idrottens positiva effekter, såsom förhöjd fysisk och mental hälsa. Även samhället gynnas av en aktiv befolkning gällande exempelvis integration. Utan ideellt engagemang hade inte detta varit möjligt och det är därför av stor vikt att föreningsaktiva har tillgång till digitala verktyg som underlättar deras vardag oPromoting a healthy lifestyle through a user friendly website builder Sweden’s prominent sports club culture engages millions of people in an active lifestyle every year, benefitting both the individual and the society. Therefore, it is crucial to provide user friendly digital tools to help with administration of these associations. This master’s thesis has resulted in a digital tool that will h

Motpolernas retorik: En kvantitativ tematisk innehållsanalys på Svenska partiers inlägg på Instagram med fokus på Negativ kampanj under valåret 2022

Uppsatsen bygger på en empirisk tematisk innehållsanalys med syfte att undersöka hur svenska partier använder sig av negativ kampanj under valåret 2022 på Instagram. De partier som mäts är Socialdemokraterna, Sverigedemokraterna och Moderaterna. Tematisk analys har använts induktivt vilket innebär att materialet formar teman som hittas i primärmaterialet. Negativ kampanj används som teori och en s

Modeling the Transport and Interaction of Paperboard ”Confetti” in Pipes

During the production of Tetra Pak’s packaging material, holes are cut for straws and caps, generating paperboard scraps known as confetti. These scraps must be removed from the machinery to prevent build-up and potential blockages. To design efficient extraction systems, experiments and simulations are employed to understand the phenomena of confetti transport. Confetti are introduced into a simp

Partial Commission of a Submarine Subsystem

Submarines constitute an important part of modern navies around the world. As they are systems with a high level of complexity, the production phase of a submarine is long and prone to flaws. The earlier these flaws are detected, the less of an impact they have monetarily and on the production timeline. SAAB Kockums build submarines in sections, in which platforms are mounted with equipment o

Synthesis of square planar complexes for potential antimalarial therapeutics

Malaria is an infectious disease that causes death and illness in the world. The effectiveness of antimalarial drugs like chloroquine has decreased, leading to an increase in the use of organometallic complexes to treat malaria. Ferroquine is an organometallic compound that is a newly developed antimalaria drug that contains a 4-aminoquinoline unit that is coordinated to ferrocene. Eight new metal

Scalable Gaussian Process Assisted Positioning Using Cell Fingerprinting

Alla har vi någon gång behövt använda oss av GPS för att hitta vägen eller se var vi är. Då har man antagligen också upptäckt att GPS inte alltid fungerar som den ska. I detta examensarbete undersöker vi ett alternativ till GPS som använder mobilnätet för att positionera med hjälp av maskininlärning. GPS-positionering kan ha en precision på mindre än 5 meter i öppna miljöer, men som tidigare nämnGNSS is currently the most prominent method for outdoor positioning, providing an accuracy of approximately 5 metres in good conditions. However, for environments such as dense city areas or indoors, a GNSS signal reception might not be possible. An alternative method of positioning is the fingerprint-based method, which has been widely adopted for indoor positioning by sampling the signal strengt

Kapitalstrukturens Gender Bias

Titel: Kapitalstrukturens Gender Bias Seminariedatum: 2024-01-10 Kurs: FEKH89, Examensarbete i finansiering på kandidatnivå, 15HP Författare: Victor Feilberg, Gustav Jäderberg, Johan Larsson Handledare: Maria Gårdängen Nyckelord: Kapitalstruktur, Trade off-teorin, Pecking order-teorin, jämställdhet, skuldsättningsgrad Forskningsfråga Finns det ett samband mellan könsfördelningen i bolagsstyrelser Title: The Gender Bias of Capital Structure Seminar date: 2024-01-10 Course: FEKH89, Bachelor Degree Project in Corporate Finance, Undergraduate Level, 15 ECTS Authors: Victor Feilberg, Gustav Jäderberg, Johan Larsson Advisor: Maria Gårdängen Key words: Capital structure, Trade off theory, Pecking order theory, Gender equality, Leverage Research question Is there a relationship between the gender

Workflows for the analysis of transcriptomic data at single-cell and spatial resolutions: T cells in lymphoma

Hur man analyserar data från encells- och spatial transkriptomik – Och vad man kan upptäcka med dess hjälp Senaste tidens tekniska utveckling har gjort det möjligt att kartlägga enskilda cellers hela transkriptom – ett mått på vilka gener som uttrycks, dvs. är aktiva. Dessutom kan avancerad bildupptagning hjälpa till med att välja ut specifika områden i vävnadsprover, där man närmare undersöker gThere is a need to closer characterise the molecular changes associated with progression from low to high mortality stage cutaneous T cell lymphoma. This has been challenging since there is high inter-patient heterogeneity in the genetics and transcriptomics of the malignant T cell populations. Modern technology has enabled single-cell resolution as well as spatially guided cell selection for whol

Merging subspecies distribution: potential Swedish hybrid zone and unknown migratory patterns of common chiffchaff

Hybrid zones represent crucial areas where two populations meet, mate, and produce hybrid offspring, serving as natural laboratories for studying genetic mechanisms underlying ecological traits and reproductive isolation. In Sweden, the common chiffchaff (Phylloscopus collybita) is represented by two subspecies: P. c. abietinus, which colonised northern Sweden through Finland at least 200 years ag

Beyond Compliance - Understandning the Role of Clinical Practice Guidelines in Prehospital Emergency Care

Bakgrund Behandlingsriktlinjer omsätter vetenskaplig evidens till praktiska regler. De är en del av sjukvårdens säkerhetsåtgärder och syftar till att göra vården säker, enhetlig, möjliggör kvalitetskontroll och minskar sjukvårdskostnader. Men det är också viktigt att inte förväxla skapande eller hantering av dokument med att hantera faktisk säkerhet. Ett strikt fokus på följsamhet till regler kan Background: Clinical practice guidelines (CPGs) translate scientific knowledge into practical rules. They aim to improve safety, ensure consistency, enable quality control, and mitigate rising healthcare costs. CPGs and other written instructions are often the target or result of safety interventions in healthcare, but it is important to avoid the trap of managing documents rather than actual safe

Självmord i Ovidius Epistulae Heroidum

Ovid’s Epistulae Heroidum is unique in the way it portrays the female point of view in many ancient myths where the women’s perspective previously has not been considered. This essay focuses on four of mythological women’s letters from the Heroides; Phyllis, Dido, Deianira and Canace – all of whom commit suicide. The purpose of the essay is to discern the reason for their suicide as well as to exa

Validation of low-cost sensors in field tests at Hyltemossa research station

DGEM (Devlabs, Copenhagen) is a small IoT product for air quality management and can be equipped with various integrated low-cost small sensors and hardware interfaces and provides comprehensive data collection capabilities. A one-month field observation test was conducted with reference instruments at Hyltemossa research station from 6th Dec. 2023 to 10th Jan. 2024 to validate this sensor bef

The Faceplate Guide - designing and implementing a digital tool for locksmiths

This thesis describes the development process of a digital tool that can be used by locksmiths to quickly and easily find the right components for repairing and replacing electronic locking mechanisms. The tool took the form of a mobile application and was developed in collaboration with Robust Ellåsning AB in Malmö, Sweden. The report describes an iterative, human-centered design process, from da

Klimatanpassning och försörjningsberedskap – synergier och utmaningar för kritiska infrastrukturer i Sverige

Försörjning av varor och tjänster är en grundläggande del av ett fungerande samhälle, och stora delar av denna försörjning sker genom näringslivet och kritiska infrastrukturer. Hot i form av klimatförändringar och antagonistiska handlingar är centrala aspekter att beakta i utformningen av viktiga samhällsfunktioner för att kunna förebygga och hantera kriser. Under de senaste 10-15 åren har klimataThe supply of goods and services is a fundamental part of a functional society, and most of this supply is driven by businesses and critical infrastructures. In the shaping of vital societal functions, threats like climate change and antagonistic acts are central aspects to consider to prevent and manage potential crises. In the last 10-15 years, climate change adaption has become a tool for mitig

What are the trade effects of environmental provisions in preferential trade agreements?

The climate crisis in one of the major challenges of our time. The role of trade in this context is a contested issue, both good and bad effects are plausible. One important question in this context is whether it is possible to increase the chance that trade does not have a negative impact on the environment by including environmental provisions in trade agreements. While this might be possible, i