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Compressed air systems account for roughly 10 % of industrial electricity use, suggesting that even marginal gains in compressor efficiency yield substantial cost and emission savings. Although screw compressors are valued for their compact and reliable design, the process of optimizing the performance of a machine for a specific application is typically time-consuming due to manual testing under

Bathymetry, the measurement of underwater terrain, is crucial for understanding lake storage volumes, water resource availability, and ecological conditions. While there are an estimated 117 million lakes worldwide, bathymetric data remains limited for most of them. Traditional methods for measuring bathymetry requires fieldwork which is costly and time-consuming. For this reason, new less fieldwo

Syftet med denna studie var att belysa och utforska psykologers upplevelser av tidsbegränsad terapi. Tidsbegränsad terapi definieras på så vis att antalet sessioner är begränsade före uppstart av psykologisk behandling. Det övergripande syftet med studien är att belysa olika perspektiv av hur tidsbegränsad terapi påverkar psykologen i sitt arbete och behandling. Fem verksamma psykologer med olika The aim of this study was to explore how psychologists perceive time limited therapy. Time limited therapy is defined as restricting the number of sessions before the beginning of therapeutic treatment. The overall purpose of the study is to shed light on different perspectives in terms of how time limited therapy affects the therapist in their work and the treatment. Five psychologists with diffe

This thesis investigates how low-frequency ultrasound can enhance membrane filtration performance and reduce fouling, one of the most critical limitations of membranes in water treatment technologies. Two types of membranes were studied. Flat-sheet polyethersulfone (PES) membranes, widely used for their mechanical and chemical stability, and electrospun nanofiber membranes (ENMs) made from styrene

Realistic virtual environments offer valuable applications in rehabilitation, especially for individuals with limited mobility. However, most existing virtual reality (VR)-based rehabilitation platforms rely on procedurally generated or low-detail natural scenes, often lacking ecological and spatial authenticity. This study proposes a complete and cost-effective workflow that combines unmanned aer

Moral är ett svårdefinierat begrepp, och även ett begrepp som inte förekommer i Lunds universitets programbeskrivning för kandidatprogrammet i sociologi, trots att det ofta är tätt sammanflätat med de frågor som lyfts i programmet. Kravet på värdeneutralitet inom sociologisk forskning växer med tiden, trots att många sociologer uppmärksammar svårigheten i att fullkomligt utesluta moral och värderi

This study compares analytical and numerical models for groundwater modelling. The focus of comparison is to investigate the change of the analytical results when there is only a partial penetration of the aquifer. Two methods of comparison are used, the first one consisting of calculating a radial distance from a shaft to the point where the drawdown is 0.3 meters with both models. The second metCan pen and paper groundwater models compete with computer programs? Could something as simple as a pen and paper equation on the back of an envelope compete with advanced and expensive computer programs? Surprisingly, the answer could be yes for sandy soils. When modelling how a construction project will affect the groundwater surface, it’s easy to assume that the more advanced the model is, the

This thesis evaluates the feasibility of arbitrage free autoencoder models for forward curve simulation using European bond data. In the model, an autoencoder is used to learn a low dimensional factor representation of forward curves. The risk neutral evolution of forward curves can be calculated by introducing a stochastic process in this low dimensional latent space. A correction factor is added

This study explores how school counsellors and treatment practitioners perceive and address violence in young people's intimate relationships. Using a qualitative approach, six semistructured interviews were conducted, three with school counsellors working at upper secondary schools and three with practitioners from various treatment settings. The analysis was guided by the normalisation proce

Sverige genomgår för tillfället strukturella förändringar i befolkningssammansättningen. Andelen äldre blir större och andelen yngre blir tvärtemot mindre. Denna demografiska utveckling får stora följder för samhället, inte minst för bostadsmarknaden. Människor i olika åldrar har olika boendepreferenser och när fördelningen i samhället förändras, förändras också behovet av olika typer av bostäder.Sweden is facing significant demographic changes, with declining birth rates and an ageing population that is not only growing older but also growing in number. These shifts affect many areas of society, particularly the housing market. Since people of different ages have different housing preferences, the demand for various types of housing is also changing. Against this background, this study ex

This thesis is conducted through a thematic document analysis and explores the reasons why inadequate labor conditions in Bangladesh have remained unchanged since the tragedy of the Rana Plaza collapse in 2013. The findings identify two significant factors that constrain the work toward fair working conditions in the ready-made-garment industry: 1) an ongoing ‘glocal’ conflict among stakeholders i

Abstract This study aims to explore the long-term impact of the educational model of rural boarding schools in China on students. Using the theory of social reproduction, the study conducts an in-depth analysis of the effects of boarding schools on students from three dimensions: family, school, and community. By collecting semi-structured interview experiences from rural boarding school graduates

Focusing on sector-specific differences, this thesis studies the long-term effects of the Elterngeld reform of the German parental insurance on female labor market participation. With data from the Socio-Economic Panel (SOEP), the analysis is based on a cohort comparison between first-time mothers giving birth during the period 2006-2008. Due to limited data, the study focuses on the labor market

Denna masteruppsats, genomförd i samarbete med Reco Port AB, undersöker hur den termiska prestandan hos en vikport i aluminium kan förbättras genom digital produktutveckling, beräkningar och simuleringar. Den befintliga portkonstruktionen har begränsad isoleringsförmåga, vilket reducerar dess användningsom- råden i miljöer där energieffektivitet är av stor betydelse. Projektets mål var att sänka pThis thesis, made in collaboration with Reco Port AB, investigates the improvement of thermal performance of an aluminum folding door through digital product development, calculation and simulation. The current door design provides limited insulation, restricting its use in applications where energy efficiency is required. The project aimed to lower the U-value of the door while ensuring structura

Gröna områden i städer, så som parker, alléer och trädgårdar, är mycket mer än bara en trevlig och grön kontrast till den gråa stadsmiljön. De bidrar med flera saker vi ofta tar förgivet i Sverige, bland annat frisk luft, skugga under varma sommardagar och platser för lek såväl som avslapp ning. Tillsammans kallas dessa nyttor för ekosystemtjänster, vilka är livsnödvändiga för oss män niskor såvUrban green spaces provide important ecosystem services that support human well-being and climate adaptation in cities. As urbanisation and densification increases, municipalities face chal lenges in promoting and safeguarding these areas. This study investigates the current methods and tools used by municipalities in southern Sweden to assess urban green spaces with regard to ecosystem service

Children who lose a parent face profound emotional and practical challenges, yet societal structures often fail to provide adequate support. This study explores how support for bereaved children is practiced within three Swedish initiatives: The Hospital Chaplaincy (Sjukhuskyrkan) in Uppsala, The Striped House (Randiga Huset), a Swedish support center for grieving children and families, in Gothenb

This study explores attitudes towards ADHD within the field of social work, focusing on perspectives from social workers diagnosed with ADHD, their managers, and colleagues. Six semi-structured interviews were conducted, primarily via video calls. Two participants were social workers diagnosed with ADHD, and four were managers with experience supervising employees with the diagnosis. The findings

Understanding the spatial and temporal dynamics of dissolved organic carbon (DOC) in boreal catchments is essential for improving water quality models and assessing carbon fluxes. This study applies the SWAT-C (Soil and Water Assessment Tool for Carbon) model to the Krycklan catchment in northern Sweden (67.9 km²), a well-instrumented boreal watershed characterized by forests, wetlands, and peatla