Sökresultat

Målet med det här examensarbetet har varit att undersöka hur avlossningen av gummipackningar från metallplattor sker genom nedsänkning i flytande kväve. Arbetet utfördes hos Alfa Laval, ett företag som tillverkar packningsförsedda plattvärmeväxlare (GPHEs). Dessa består av metallplattor med en limmad gummipackning fäst på dem. Avlossningen av packningen är ett avgörande steg i rekonditioneringsproThe purpose of this thesis work was to investigate the debonding of rubber gaskets from metal plates through immersion in liquid nitrogen. The work was con- ducted at Alfa Laval, a company which produces Gasketed Plate Heat Exchangers (GPHEs), which consist of metal plates with adhesively bonded rubber gaskets. Gasket debonding is a key step in the reconditioning of GPHE plates, and un- derstandin

The objective of this study is to map and analyze the different uses and distinctions between the two verbal forms synthetic future (cantaré) and periphrastic future (voy a cantar). The study examines whether there has been a shift in the frequency of general use between the two forms over the past 20 years, as well as maps out the different contexts and levels of formality in which each form appe

Sedan upptäckten av penicillin har mänskligheten lyckats kringgå bakteriella infektioner som tidigare varit dödliga. Men i takt med att användningen av antibiotika ökat, har bakterierna lärt sig att kringgå det. Dessa så kallade resistenta bakterier utgör ett stort hot mot människan, eftersom de i nuläget är svåra att stoppa – med följden att vissa bakteriella infektioner kanske återigen kommer klWith antimicrobial resistance emerging, this project is part of a larger effort to design novel antibacterial substances combating bacterial infections. On the road towards this, sialic acids have become of large interest. Having a vital role within cell signalling, adhesion and recognition in the human body, these 9-carbon α-keto sugars have opened a door for bacterial survival. By the help of si

This research explores the emerging concept of care infrastructure in the urban periphery of Mexico City, specifically in Iztapalapa, through the lens of urban social sustainability. Based on over 35 semistructured interviews and participant observation, the study analyzes how access to services such as public laundries, take-away food services, and communal spaces contributes to the well-being of

This thesis examines how legal frameworks and socio-cultural norms interact to shape the protection of children’s rights in domestic violence cases in Sweden and India. The study compares legislative schemes, policy documents, court decisions, and institutional reports using a socio-legal approach grounded in legal pluralism, legal culture, and the distinction between law in books and law in actio

This thesis explores how Lund University students perceive and respond to behavioural nudges in the Mecenat discount app. Using a mixed-methods approach it examines the influence of persuasive design features linked to present bias and loss aversion. While few students reported acting impulsively, many believed the app encourages such behaviour, revealing a perception gap between stated control an

SafeGrowth is a method in urban planning to prevent crime and promote social cohesion. The method was officially introduced in Toronto, Canada in 2001. Toronto and their application of SafeGrowth sparked global interest and in 2020, Drottninghög in Helsingborg, Sweden, decided to apply the method. They became the first city in Europe to apply SafeGrowth. This study explores the application of Safe

This thesis examines how innovations in electric aircraft and eVTOL vehicles can contribute to sustainable air travel and transform future transport systems. The research focuses on identifying the most promising technologies and how they could be applied in practice. The study is based on a systematic review of academic literature, case studies and expert interviews from both academia and the avi

This thesis aims to look at the dispute resolution mechanisms in the EU-UK Trade and Cooperation Agreement (TCA) and how these contribute to the legal certainty of European Union law and the prevention of fragmentation of EU harmonisation. Brexit presented unprecedented challenges to the European Union’s (EU) legal order and brought significant questions to the upholding of legal certainty and har

Partikelfysikens Standardmodell är den bästa teoretiska beskrivningen vi har av de allra minsta byggstenarna som utgör vårt Universum och hur de interagerar med varandra. För att utöka vår förståelse och verifiera våra teoretiska modeller behöver vi utföra experiment. Dessa experiment består av att kollidera partiklar med varandra i nästan ljusets hastighet, vilket görs i partikelacceleratorer somThe chirality-flow formalism has proven to simplify the calculations of helicity amplitudes to the extent that the matrix element corresponding to a Feynman diagram can immediately be written down. It has also shown to speed up the computation of scattering amplitudes through numerical implementations in MadGraph5_aMC@NLO. In this thesis we investigate if automated computation of amplitudes can be

The purpose of this study is to investigate how structural barriers and integration policies affect-skilled African immigrants in the Swedish labor market. A qualitative narrative review of 31 studies-was conducted and analyzed using social capital theory. The first part of the study explores how-current integration policies and programs address the needs of this group. The second part examines-th

Luftföroreningar är ett globalt hälso- och miljöproblem och orsakar att varje år dör 4 miljoner människor i förtid. Även om Sverige har förbättrat luftkvaliteten, uppskattas över 7 tusen varje år dö till följd av föroreningar. De tre vanligaste föroreningarna är partiklar (PM10, PM2.5) och kvävedioxid (NO2). Orsakerna till föroreningar är huvudsakligen vägtrafikens utsläpp, grus på vägar som mals Air pollution is a global problem that causes major impacts on health and the environment. To protect the environment and health, the European Union has been implementing revised poli-cies on air quality. The revised Ambient Air Quality Directive introduces stricter air quality standards. The aim of this study is to identify Swedish municipalities where the new and exist-ing air quality standards

The event generator PYTHIA can be used to simulate the hadronic part of cosmic particle showers in the atmosphere. Until now, the collision between particles and atmospheric nuclei has been modeled in a simplified way by the PythiaCascade add-on, approximating the nuclear effects. However, at present it is possible to include the Angantyr module, which constructed a detailed description of the nuc

Traditionally, radio communication research has focused on improving range and data transmission rates. Over the past decade, there has been a growing demand for small devices that should be able to interact with each other, and to facilitate this growth, low-cost and low-power radios are necessary to ensure devices are able to function for extended periods of time without maintenance. This thesis

This thesis investigates the European Union’s Carbon Border Adjustment Mechanism (CBAM) as a novel intersection between climate regulation and international trade law. It explores the extent to which CBAM serves as a legitimate environmental measure under EU and World Trade Organization (WTO) legal frameworks or whether it risks functioning as a de facto instrument of protectionism. This is partic

A biographical ideology-analysis of Sven Arvid Flory’s diaries, 1932‒1941. This study follows the diaries of the Swedish officer Sven Arvid Flory from 1932 through 1941, analysing the political and personal notes made and relating them to broader frameworks of ideology. First impressions of the material hinted at nazi sympathies. The study then focused on these ideological aspects of the diaries,

This thesis investigates the structural, social, and spatial factors shaping women’s spatial mobility in Gothenburg, Sweden. Employing a quantitative approach grounded in relational spatial theory, the developed method combines quantitative regression analysis with a case study on two neighbourhoods to examine how gender inequalities, domestic responsibilities, labour force participation, and ethn

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

Partiella differentialekvationer används ofta för att modellera fysikaliska fenomen, bland annat allt från klimatmodellering till kvantmekanik. Därför är det oerhört viktigt att utveckla snabba och effektiva metoder för att lösa dessa problem. Ett sätt att snabba upp lösare är att utnyttja parallellism, det vill säga att låta flera processorer/datorer samarbeta med att lösa problemet. För att nyttCurrent trends in hardware design have led to a growing interest in parallel-in-time (PinT) methods for increasing parallelism in numerical solvers for partial differential equations (PDEs). In this thesis, we consider the Multigrid Reduction in Time (MGRIT) algorithm (Falgout et al.) for linear parabolic PDEs. We provide a description of the algorithm, as well as a derivation of the error propaga