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An experimental and numerical study has been conducted to analyze the effects of rib configurations on heat transfer in U-turn rotating rectangular channels with smooth walls. A new model of a wavy rib is studied and compared with traditional ribs in a rectangular cross-section. Heat transfer coefficients for all rib configurations were measured from Reynolds numbers 4000 to 12000, whereas rotatio
Vascular smooth muscle cell plasticity plays a pivotal role in the pathophysiology of vascular diseases. Despite compelling evidence demonstrating the importance of transcription factor GATA6 in vascular smooth muscle, the functional role of GATA6 remains poorly understood. The aim of this study was to elucidate the role of GATA6 on cell migration and to gain insight into GATA6-sensitive genes in
During the first half of 2022, the World Health Organization reported an outbreak of acute severe hepatitis of unknown aetiology (AS-Hep-UA) in children, following initial alerts from the United Kingdom (UK) where a cluster of cases was first observed in previously well children aged <6 years. Sporadic cases were then reported across Europe and worldwide, although in most countries incidence did n
The correspondence between galaxy major mergers and starburst activity is well established observationally and in simulations of low-redshift galaxies. However, the evolution of the properties of interactions and of the galaxies involved suggests that the starburst response of galaxies to merger events could vary across cosmic time. Using the vintergatan cosmological zoom-in simulation of a Milky
The star formation history of a galaxy is modulated by a plethora of internal processes and environmental conditions. The details of how these evolve and couple together are not fully understood yet. In this work, we study the effects that galaxy mergers and morphological transformations have on setting different modes of star formation at galactic scales and across cosmic time. We monitor the glo
The focus of this study is threefold: (1) to examine how jaw displacement patterns vary with prosodic focus in American English, (2) to determine whether narrow focus induces greater jaw lowering than broad focus, and (3) to compare two different techniques for recording these jaw displacement patterns—Electromagnetic Articulography (EMA) and the new, innovative MARRYS helmet system. Simultaneous
An essential capability in modern electronic warfare is the ability to rapidly adapt to novel electromagnetic environments. This thesis proposes a statistical signal processing pipeline that reconstructs underlying repeating patterns from deinterleaved Signal Descriptor Word (SDW) sequences in a zero-shot context, where a signal is encountered for the first time. An important application of such a
Studien undersöker hur hållbar varumärkesprofilering operationaliseras i svenska hotellföretags strategier och kommunikation, samt vilka risker för greenwashing som kan identifieras i deras kommunikation. Hotellbranschen tillhör tjänstesektorn där hållbarhet ofta kommuniceras genom berättelser och certifieringar snarare än genom produktegenskaper, vilket skapar förutsättningar för vilseledande kom
A higher production rate of green hydrogen is needed to meet climate change targets. This thesis investigates the behaviour of four photovoltaic (PV) and proton exchange membrane (PEM) electrolyser coupling configurations in MATLAB Simulink. Direct and indirect coupling are simulated, and systems are created with PV reconfiguration, with and without a battery, to investigate the behaviour of syste
Syftet med studien är att förstå hur de senaste decenniernas förändrade familjeformer, förståelsen för vad en familj är och teknologisk utveckling skapat nya vägar till föräldraskap. Forskning visar att barnafödandet minskar i västvärlden, samtidigt som nya alternativa familjekonstellationer uppkommer. En av dessa grupper är ensamstående mammor som väljer att skaffa barn på egen hand genom assiste
This quantitative study aims to examine how age- and gender-coded language in recruitment advertisements influences identification, perceived inclusion, and the willingness to apply among different age and gender groups. Using sociological perspectives, the study explores how language functions as a carrier of norms and stereotypes, reproducing social categories and expectations within the labor m
During start-up of tablet presses in pharmaceutical manufacturing, multiple weight adjustments are often required before the tablet weight falls within acceptable limits. This leads to delayed production and a waste of material. The aim of this work was to develop a predictive model to reduce the number of adjustments during start-ups and thereby reduce the amount of rejected material. A linear r
Sprickbildning har observerats på vissa delsträckor av E6 och E45 i Västra Götalands län, Sverige, trots liknande trafikförhållanden och beläggningskonstruktioner. Syftet med denna studie var att undersöka möjliga materialrelaterade faktorer som bidrar till sprickbildning i asfaltbeläggningar. Historiska kvalitetskontrolldata, projektdokumentation och nya fältundersökningar användes för att jämförCracking has been observed on certain sections of the E6 and E45 highways in Västra Götaland County, Sweden, despite similar traffic conditions and pavement structures. The purpose of this study was to investigate possible material related factors contributing to asphalt pavement cracking. Historical quality control data, project documentation and new field investigations were used to compare crac
n modern telecommunications, the ever increasing demands on signal bandwidth with the adoption of Millimeter Wave (mm-W) frequency bands for the Fifth-Generation (5G) standard make ensuring Power Amplifier (PA) linearity, while maintaining efficiency, a major challenge in the design of Transmitter (TX) circuits. As Digital Pre- Distortion (DPD) linearizers become too power hungry for wide-band app
AI integration is reshaping organizational work, however its success depends less on technical capability than on the cultural context into which it is introduced. This comparative case study examines how organizational culture and AI interact to shape organizational routines at two large Swedish organizations with distinct cultural profiles: IKEA, with its people-first, values-driven identity, an
Integrating sustainability into the core business strategy remains a significant challenge faced by many companies. This study explores how an integrated sustainability strategy (ISS) unfolds by examining the organizational and cross-functional conditions that enable or constrain the implementation, the operational tensions that emerge along this process, and the dynamic managerial capabilities (D
This study investigates how candidates perceive and experience artificial intelligence-driven recruitment processes, and how these experiences shape their broader impressions of hiring organizations. Drawing on 11 semi-structured interviews with individuals from diverse professional backgrounds who had firsthand experience with AI-assisted recruitment, the research adopts a qualitative, abductive
Global sourcing increasingly takes place in a politically unstable environment where supplier relationships are shaped by traditional factors like cost and operational performance, but also by geopolitical uncertainty. While existing literature has examined broad supply chain responses to geopolitical disruption, limited attention has been given to how sourcing professionals reason and respond at
Startups often rely on business networks to access resources, knowledge, and opportunities. While business incubators have been widely recognized as network facilitators, limited attention has been directed to how industry-specific incubators support network access within particular industry contexts. To address this gap, this study aims to enhance the understanding of how industry-specific incuba
