Sökresultat

I många aerodynamiska höghastighets-applikationer som t.ex. raketmotorer och vindtunnlar används ett så kallat konvergerande-divergerande munstycke, vilket är en rörformad del där tvärsnittsarean först minskar och sedan ökar. Sådana munstycken används ofta för att accelerera luft till supersoniska hastigheter, vilket innebär att det flödar snabbare än ljudets hastighet som är ungefär 343 m/s. Vid This thesis investigates the potential of using Fourier neural operators to predict subsonic and supersonic flows in converging-diverging nozzles, which includes complex flow phenomena such as shock waves. Two different data sets were generated using the Euler equations for fluid flow, one based on analytical relations for a quasi one-dimensional nozzle and another one which was created by numeric

This study investigates how EPU affects stock returns and volatility for Sweden’s four largest banks: Swedbank, Skandinaviska Enskilda Banken, Svenska Handelsbanken, and Nordea. As a small open economy with a concentrated and globally exposed banking sector, Sweden is particularly vulnerable to both domestic and international uncertainty shocks. Using monthly data from 2000 to 2024, we apply a GAR

The climate crisis will continue to threaten coastal cities. The mitigation method of building seawalls along the coast is often seen as an effective remedy for recurring floods. However, this infrastructure can have severe impacts on communities that rely on fishing and aquaculture. There need to be alternatives to the usual urban planning and design methods, which often overlook less fortunate

Kan klimatförändringar göra Sverige till ett vinland? I Skåne har vinodlingen vuxit kraftigt under de senaste decennierna. Denna studie undersöker hur vinodlare i regionen ser på klimatets roll i utvecklingen – och hur de planerar för en framtid som blir allt mer osäker. Att vin produceras i Skåne är ett relativt nytt fenomen. För några decennier sedan ansågs klimatet vara för kallt och instabiltAs climate change reshapes agricultural possibilities across Europe, new crops are emerging in previously marginal regions. In Skåne, southern Sweden, commercial wine production has expanded in recent years. This study explores how local winegrowers perceive the role of climate change in this development, what climate-related risks and opportunities they foresee, and what strategies they adopt to

Småhus med småskalig solproduktion och elbil kommer bidra med skarpa förändringar i elsystemet. Denna studie undersöker hur möjliggörande tekniker i form av smart laddning, Vehicle-to-Grid (V2G) och hembatterier samtsamhällsvetenskapliga påverkansfaktorer kommer vidare bidra till denna förändring. Studien visar att formen av styrande prissignalsamt utbredningsgraden av dessa tekniker kommer ha en The objective of this study is to investigate how the power profiles of residential houses in Sweden may look like in the future. Median power profiles for typical summer and winter days were created using real customer data. The customer group analyzed consists of houses in southern Sweden, SE4, equipped with both solar electricity production (PV) and electric vehicles (EVs) with home charging st

Byggbranschen står inför en digital transformation där teknologier som digitala tvillingar, artificiell intelligens och internet of things börjar implementeras allt mer idag. Genom att skapa en digital modell som kontinuerligt uppdateras med realtidsdata och kopplas samman med fysiska byggnader, möjliggörs det övervakning, analysering och optimering av byggnadens prestanda. Syftet med studien haThe construction industry is undergoing a digital transformation, where technologies such as digital twins, artificial intelligence (AI), and Internet of Things (IoT) are increasingly being implemented. By creating a digital model that is continuously updated with real-time data and connected to a physical building, it becomes possible to monitor, analyse and optimize building performance. The pu

This study aimed to examine and analyze how social workers perceive the new Social Service Act and its ambition to reduce individual needs evaluations. The new Social Service Act also includes increased access to receive social support without social workers’ decision-making. The study aims to generate an understanding of social workers' experiences regarding their professional practice relate

As issues regarding social security and gang violence have risen, safety has become a central concern, both internationally and in Sweden. Several strategies have been developed to counter the possibility of committing crime by changing the urban design and use of public space, including in socio-economically disadvantaged areas. One approach that has emerged from this is Crime Prevention Through

This thesis seeks to bring new understanding in the handling of comics and how the implicit views of librarians can affect this. It further attempts to discuss the pros and cons in different shelving solutions as well as act as a guide to librarians seeking to organize their comics section. The questions that was asked were: How do libraries choose to present their comics in the physical room? How

This thesis applies deep learning methods to examine the forecastability of green bond yields relative to conventional (brown) bond yields. Using Transformer-based neural networks trained on a large panel of macro-financial indicators, selected via LASSO regularization, we develop forecasting models that differentiate between regular and crisis periods. The results suggest that green and brown bon

The European Commission is tightening its sustainability regulations to ensure businesses contribute to environmental and social responsibility throughout their value chains. The Corporate Sustainability Due Diligence Directive (CSDDD) is an upcoming regulation which mandates large companies to identify, prevent and mitigate adverse human rights and environmental impacts. Although small and medium

Titel: Kassareserver och kvinnliga CFO:er Seminariedatum: 2025-06-03 Kurs: FEKH89, Examensarbete i finansiering på kandidatnivå, 15 hp Författare: Elin Antonsson, Anna Ekengren, Sofia Nordfjell Handledare: Anamaria Cociorva Nyckelord: Riskaversion, kassareserver, kvinnor, CFO, ekonomiska strategier Forskningsfråga: Hur påverkas andelen kassareserver i ett företag om posten som CFO innehas avTitle: Cash Reserves and Female CFO:s Seminar date: 2025-06-03 Course: FEKH89, Corporate Finance Degree Project, Undergraduate level, 15 credits Authors: Elin Antonsson, Anna Ekengren, Sofia Nordfjell Advisor: Anamaria Cociorva Key words: Risk aversion, cash reserves and cash equivalents, CFO, women, financial strategies Research question: How is a firm’s level of cash reserves affected when

This qualitative study provides a critical lens on social enterprises. The concept of purpose-driven control, a form of normative control, is established, which comprises how organizational practices, grounded in a social and/or environmental purpose, are used to foster organizational identification and employee commitment, leading to behavioral alignment and extraordinary efforts as well as the p

Introduction: Phase transition in semiconductor perovskite materials is an interesting phenomenon that is relevant for understanding of properties of these semiconductors. Background: The challenge in this field lies in understanding the phase transformation mechanisms between different phases in MAPbI3. Aim(s): To investigate laser-induced structural transformation of methylammonium lead iodide.

Växjö municipality in southern Sweden has long promoted itself as a frontrunner inenvironmental and climate policy, aiming to become climate neutral by 2030. As the city-continues to grow, this ambition is increasingly challenged by growing mobility demands and-infrastructure developments. This thesis investigates how Växjö works to achieve sustainable-mobility, and how the large-scale road projec

This study explored how midwives and healthcare counselors in Sweden support women experiencing fear of childbirth, with a focus on how they balance patients' preferences with medical guidelines and their influence in determining the mode of delivery. The method chosen was qualitative, semi-structured interviews with midwives and healthcare counselors from specialized maternity support teams w

This thesis investigates how family ownership affects the short-term market reaction to acquisition announcements by serial acquirers. While family firms are traditionally viewed as conservative and long-term oriented, some engage in repeated acquisitions, a strategy typically associated with higher risk and managerial overconfidence. Using a sample of 678 acquisitions by Swedish publicly listed f

The study is an empirical analysis of what drives the sentiment towards a tax-funded Universal Basic Income (UBI) implementation in 12 European countries, both on an individual and country level. The two core research questions are: How do the subjective perceptions of household income influence the sentiment towards the implementation of a basic income scheme on an individual level? and how does

The blur between employee’s personal and professional lives has increased for the past few years. Organizations have used the ‘we are like family’ discourse to subtly control employee’s identities that implicitly impact the way they behave at the workplace. Transformational leadership, which is always been known for its compelling traits, can be one of the mechanisms for organizations to subtly ch