Sökresultat

Automated pollen classification is challenging because visually similar species may differ only by subtle morphological characteristics. This thesis investigates deep-learning models for classifying microscopic pollen-grain images from ten plant species using RGB image crops together with two segmentation-derived size measurements: the major and minor axes of the pollen grain. The study builds on

Research into distributed multiple-input multiple-output (D-MIMO) systems has gained increasing attention as a candidate technology for future 6G networks. However, evaluating such systems under realistic implementation constraints requires real-time testbeds that can capture effects such as synchronization, processing latency, hardware resource usage, and radio-frequency impairments. This thesis

With the on-going development of computer-controlled and robot-based manufacturing methods, such as 3D printing and CNC milling, the digital revolution has now truly also reached physical objects. This might rapidly change where, when and how many of our everyday objects are being manufactured. It has been called the third industrial revolution. In this project, a renovation and conversion of Sain

Atrial fibrillation is characterized by rapid and irregular atrial activity, where the atrioventricular (AV) node regulates how many impulses are conducted to the ventricles. Rate-control treatment aims to reduce the ventricular rate, but patients may respond differently to treatment. In this thesis, a model-based framework was applied to ECG-derived RR interval data from the RATAF II study to est

Hot, hat och trakasserier mot politiker har under senare år uppmärksammats som ett växande samhällsproblem med konsekvenser för såväl enskilda politiker som för den demokratiska processen. Tidigare forskning visar att utsattheten kan leda till bland annat oro, självcensur och förändrade beteenden. Syftet med studien är att undersöka hur politiker i Sverige förklarar och tolkar erfarenheter av hot,

Distillation is the primary separation technique in the petrochemical industries, but it operates with extremely low thermodynamic efficiency. It represents the largest share of industrial energy consumption, making its decarbonization a global priority. While advanced process technologies, such as Mechanical Vapor Recompression (MVR) and the Heat-Integrated Distillation Column (HIDiC), offer a pa

Sammanfattning Forskning om brand dilution och repositionering har i stor utsträckning fokuserat på konsumentperspektivet, det vill säga hur konsumenter reagerar på urholkade varumärken och hur de uppfattar repositionerade sådana. Det organisatoriska perspektivet, det vill säga hur brand dilution uppstår, identifieras och hanteras inifrån organisationer genom interna beslutsprocesser, strategiska

Denna studie syftar till att undersöka hur konsumenter upplever och värderar lojalitetsprogram inom e-handel som en utbytesrelation, med särskilt fokus på hur upplevt värde och tillit påverkar olika former av kundlojalitet. Studien har en kvalitativ forskningsdesign med en abduktiv ansats och bygger på 14 semistrukturerade intervjuer med unga vuxna som regelbundet handlar online och är aktiva i flThis study aims to examine how consumers perceive and evaluate loyalty programs in e-commerce as an exchange relationship, with particular emphasis on how perceived value and trust influence different forms of customer loyalty. The study adopts a qualitative research design with an abductive approach and is based on 14 semi-structured interviews with young adults who regularly engage in online sho

Syfte: Syftet med studien är att undersöka hur beslutsfattare inom strategiskt marknadsföringsarbete resonerar kring artificiell intelligens (AI), intuition och mänskligt omdöme i sitt beslutsfattande. Studien syftar även till att bidra med en ökad förståelse för den mänskliga dimensionen av datadrivet beslutsfattande inom marknadsföring. Teoretiskt ramverk: Analysen baseras på dual process theor

Cerebral palsy is the most common cause of physical disability in childhood, yet the relationship between rehabilitation exposure and motor development remains in- completely understood. This thesis investigates factors associated with functional improvement in children with cerebral palsy using longitudinal data collected through a life-mapping questionnaire. The questionnaire captured retrospect

This thesis analyses how the growth of wind and solar PV generation has affected wholesale electricity prices in Spain between 2020 and 2025, and how that relationship evolved as renewable penetration increased. Using 52,603 hourly observations obtained from the REE ESIOS public data portal — covering OMIE day-ahead spot prices, electricity demand, wind generation, and solar PV generation — the st

The demand for better networks and faster speeds within telecommunications has been an ever-growing ambition for the last decade. A promising candidate for dealing with this demand is distributed multiple-input multiple-output (D- MIMO) systems that combine large-scale antenna arrays and decentralized node architectures. However, evaluating the possibilities and limitations of such system requires

Smart charging of electric vehicles can reduce cost by scheduling against time-varying electricity spot prices, but commercial systems generally rely on day-ahead prices and capture only within-day variation. This thesis investigates whether forecasting spot prices beyond the day-ahead horizon adds value for vehicle-integrated smart charging, and how that value varies across charging contexts. A t

Air pockets in pressurized pipelines may reduce hydraulic capacity, increase head losses, and affect system operation. In downward sloping pipe sections, a key question is whether the water flow can transport a trapped air pocket downstream or whether the air is likely to remain stationary, which would require an air valve to evacuate the air. This thesis compares selected criteria and guidance so

Våtmarker bidrar med många ekosystemtjänster såsom kolinlagring och förbättrad vattenkvalitet och tillgänglighet. Historisk dränering har dock lett till en massiv förlust av våtmarker världen över, vilket resulterat i förlorade ekosystemfunktioner och ökade utsläpp av växthusgaser. Idag finns ett ökat intresse för återställning av våtmarker för att nå beslutade klimat- och miljömål. Det finns dockPeatlands provide several ecosystem services such as carbon sequestration and improved water quality and availability. However, historical drainage has led to a massive loss of peatlands worldwide, resulting in lost ecosystem functions and increased greenhouse gas emissions. Today, environmental goals have led to a renewed interest in the restoration of peatlands. However, knowledge gaps regarding

The effectiveness of early warning systems (EWS) is frequently emphasised as being dependent on the integration of vulnerability, yet such considerations are often argued as lacking in practice by international organisations and scientific communities. Although this is acknowledged by global initiatives, less attention has been given to understanding vulnerability integration from the perspectives

This study examines Turkish foreign policy toward Syria through the lens of historical materialism. Departing from mainstream analyses that treat economy and politics as separate spheres, it situates class dynamics at the core of foreign policy formation, arguing that Ankara's engagement is systematically driven by the imperative to convert conflict into economic opportunity for Turkish capita

This research examines the racial and gendered dynamics of dancehall culture in Sweden, focusing on how participation in a transnational Black cultural practice shapes relationships between white women and racialized women within predominantly female dance spaces. Originating in Jamaica, dancehall has expanded globally, becoming both a site of cultural expression and a commodified transnational pr