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The Atankwidi River Basin is situated in the Upper East Region of Ghana. The Basin has an area of around 275 km2. The semiarid climate in which the Atankwidi is situated is characterized by one rainy season spanning from April to September and one dry season spanning from September to April. All of the year’s precipitation falls during the rainy season – roughly 1000mm – with a peak downfall in Au
Introduction: Over 1,000 children under the age of five die every hour worldwide. The most effective intervention to reduce the mortality rate among children is to vaccinate against infectious diseases. Objective: The aim of this study was to investigate the compliance of a random selection of Ghanaian orphanages to the Ghana national vaccination program. Method: The study was an empirical quantit
The thesis focuses on multi-physics simulation of a gas inflator for inflation of airbags. The need of multi physics simulations extends to many other engineering and industrial applications and has become an extensive area of research. Main focus is on the Fluid Structure Interaction (FSI) within the field of multi-physics or coupled physics simulation. The purpose is to study the flow, the membr
Abstract Title: Purchasing and digitalization in an era of turbulence Authors: Emil Sarajlic & Vishal Natesan Supervisor: Wilbert Baerwaldt, Director Sourcing and Value Chain at Duni AB Louise Bildsten, Department of Industrial Management & Logistics, Faculty of Engineering, Lund University Examiner: Jan Olhager, Department of Industrial Management & Logistics, Faculty of Engineeri
This paper aims to investigate the factors that affect the technology acceptance of retail apps and elaborates on the Technology Acceptance Model (TAM) through an in-depth, single case study on IKEA. The case study provides the research with the crucial aspect of the customer's perception of the app and extends the framework through the practical adoption of apps. The data were collected throu
Thesis Purpose: This study examines how parasocial relationships between music artists and fans foster a plethora of different consumer attitudinal outcomes, with the purpose to provide clarity through the shaping of distinct consumer archetypes, while offering in this way practical insights for marketers and industry professionals. The context of K-pop is used to delve deeper into the understandi
When cultivating barley (Hordeum vulgare), access to cultivars with shorter flowering time can be helpful in various agricultural settings, such as the effort of expanding agricultural capabilities into colder regions with shorter growing seasons. The recently identified gene Praematurum-b (Mat-b) is known to cause the plants to flower 7 days early on average. This thesis aimed to analyze the effe
This paper analyses 56 speeches, statements and press releases made by the European Commission 3 months before and 3 months after the Russian invasion of Ukraine. By utilising a framework that combines theories of sustainability and securitisation, as well as building on existing literature about the European Green Deal and REPowerEU, this essay examines how the invasion affected the balance bet
The land use, land-use change, and forestry sector (LULUCF) has historically been rather unregulated. Recent political developments have put pressure on countries to implement practices that increase net greenhouse gas (GHG) removals and improve the state of carbon sinks. One of these political developments is the European Union’s (EU) LULUCF Regulation, which as of now obligates Member States (MS
HTML clipboard Numerical analysis of partial admission in axial turbines is performed in this work. Geometrical details of an existing two stage turbine facility with low reaction blades is used for this purpose. For validation of the numerical results, experimental measurements of one partial admission configuration at design point was used. The partial admission turbine with single blockage had
Chronic psychological stress is increasingly recognized as a major public health concern, contributing to cardiovascular disease, obesity, asthma, and impaired bone health. Although the mechanisms linking stress to skeletal dysregulation are well characterized in adults, pediatric studies remain limited. Longitudinal and mechanistic studies are needed to clarify how stress affects bone accrual dur
Context. Near-infrared high-resolution échelle spectrographs unlock access to fundamental properties of exoplanets, from their atmospheric escape and composition to their orbital architecture, which can all be studied simultaneously from transit observations. Aims. We present the first results of the newly commissioned ESO near-infrared spectrograph, Near-InfraRed Planet Searcher (NIRPS), from thr
This chapter focuses on the impact of the war on the mental well-being ofuniversity students. First, we will provide a brief overview of the “generationof war” – comprising the majority of the current university students – and themental health issues that war can cause. Next, we present the results of astudent well-being survey conducted at Zhytomyr Polytechnic State Uni-versity in 2022, 2023 and
Populärvetenskaplig sammanfattning:Elfordon uppfattas ofta som en modern uppfinning, men elektriskt drivna fordon har funnits sedan slutet av artonhundratalet. De första helelektriska personbilarna, bussarna och lastbilarna utvecklades redan innan förbränningsmotorn slog igenom.För att förstå varför elektriska störningar spelar en så viktig roll i dagens elfordon kan man börja med en enkel bild. TThe rapid electrification of heavy-duty vehicles has introduced traction voltage systems (TVS) with electrical scale and complexity not previously seen in on-road applications. Multiple power electronic subsystems interact through long cables and frequency-dependent impedances, making conducted electromagnetic interference (EMI) a system-level phenomenon. Differential-mode (DM) and common-mode (CM
Contemporary Nordic building design prioritizes energy-efficient HVAC systems to mitigate carbon emissions. However, this approach underestimates intensifying climate risks, creating critical vulnerabilities as extreme weather and energy/resource scarcity escalate. To address this gap, a free-running building concept, eliminating heating, cooling, and mechanical ventilation, was examined for Nordi
The effects of oxygen concentration on combustion of gases have been investigated on fundamental levels in several studies. However, the same type of fundamental studies has not been made for liquid or solid fuels due to complex relationships between flame structure and changing mass loss rates (MLR). In this study, an experimental setup is designed that allows for extended times of stable combust
