Viimeksi syötetyt Väitöskirjat
Aineistot 21-40 / 1037
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Sustainable energy transition for Pakistan: Assessing the role energy, water supply, social and gender equity dimensions
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 15.12.2023)The main aim of this dissertation is to evaluate the energy, water and social dimensions of a 100% renewable energy system in Pakistan. Techno-economic aspects of the sustainable energy transition are assessed by modelling ... -
Designing printing parameters for geopolymer concrete prepared from construction and demolition waste and industrial side streams
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 24.11.2023)The high demand for construction and infrastructure materials, the reduction of global warming potential (GWP) and the European union (EU) environmental protection policy have led to the use of environmentally friendly ... -
Thermomechanical finite element simulation of welding, and elevated-temperature mechanical behaviour of high and ultra-high strength steels
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 23.11.2023)The development of high and ultra-high strength steels (HSSs/UHSSs) emerged as an engineering approach to enable lightweight structural applications and an environmental solution to reduce the steel production-related ... -
Operative business development through system model and changing business structures
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 24.11.2023)Global markets and related operational activities create ever-changing challenges. The fluctuations of the global economy, in addition to customer demands, introduce dynamic challenges that a company should be able to ... -
The role of artificial intelligence in circular value creation : a conceptual framework and evidence from case studies
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 17.11.2023)The digital transformation and circular economy (CE) are two megatrends that have been discussed not only among practitioners and policy makers, but also as an interesting topic of research in the scientific world. While ... -
Research on key technologies for lightweight maintenance operations of the remote handling system for a fusion reactor
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 17.11.2023)During the operation of the China Fusion Experimental Reactor (CFETR), the internal components of the fusion reactor must withstand various extreme environment conditions and are susceptible to damage, necessitating regular ... -
Assessment of weld root fatigue strength of load-carrying fillet welded joints using notch stress approaches and finite element analysis
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 21.11.2023)This thesis uses nominal and notch stress concepts to evaluate the fatigue strength of loadcarrying fillet welded joints (LCFWJs) made of high-strength steel. The study investigates the effect of different reference radii ... -
From observation to insight: Computational abduction and its applications in sustainable strategy research
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 08.12.2023)The term computational abduction broadly refers to the use of computational methods in combination with patterns of abductive reasoning. This dissertation focuses on the application of computational abduction in management ... -
Long-term evolution of greenhouse gas emissions from municipal solid waste management
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 17.11.2023)Municipal solid waste (MSW) management concerns the everyday lives of each of us. This dissertation focuses on greenhouse gas emissions (GHGs) of MSW management with household and commercial waste. Waste fractions of mixed ... -
Knowledge Injection Method for Real-Time Decision Support
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2023)Industrial networks are essential components of the infrastructure of industrial and civil facilities, connecting various aspects of a complex social “organism.” Therefore, network damage has serious consequences that can ... -
Quantification of synchronization
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 24.11.2023)Synchronization is a universal behavior that is crucial in a wide array of biological, physical, and technical systems. Some examples are flashing fireflies, cardiac and neural processes, non-linear electronic circuits, ... -
Dynamic analysis and parameter identification for robotic manipulators
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 20.11.2023)This paper presents a comparative advanced study on parameter identification and dynamic analysis of lightweight and heavy-duty robotic manipulators. The ultimate goal is to enhance the performance and control of these ... -
Numerical ductile fracture assessment of weldments in direct-quenched, ultra-highstrength steel
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 01.12.2023)Many studies conducted in recent years have raised concerns about the ultimate loadcarrying and elongation capacities of weldments made of direct-quenched, ultra-highstrength steels (UHSS). The reason for this is the ... -
Procurement improvement in the public agency
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LIT, 10.11.2023)Public sector procurement and innovations have been sources of economic and industrial competitiveness in the European Union (European Commission, 2022). Public procurement accounts for 12% of the EU's gross domestic product ... -
Open data in distribution network asset management
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 03.11.2023)Climate change and the energy transition are causing major changes to the distribution network environment. The electrification of society raises expectations for clean, reliable, and affordable electricity supply. Meeting ... -
Atmospheric boundary-layer characteristics and their significance in wind energy and urban air quality assessment
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 03.11.2023)The study of the Atmospheric Boundary-Layer (ABL) flow is growing rapidly, owing to its crucial role in promoting environmental sustainability and facilitating renewable energy development. The significance of ABL modeling ... -
Model and Guidelines for Designing Internet-of-Things-Enabled Smart Waste Management System in Smart Cities
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 27.10.2023)Waste management (WM) is one of the most significant environmental problems and a major challenge for any large city, municipality, or even country. Smart waste management (SWM) involves capturing, processing, storing, and ... -
Business model innovation opportunities when news has become a public good
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 24.11.2023)This dissertation explores business model opportunities for news when information is freely accessible. It asks: How have news agencies responded to the declining commercial value of news in their strategies and business ... -
Augmented reality in consumer retail : a presence theory approach
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 20.10.2023)This doctoral dissertation investigates the role of virtual try-ons (VTOs) enabled by augmented reality (AR) to foster positive consumer responses using a presence theory approach. Presence refers to the sense that a virtual ... -
Motives, uncertainties, and imbalances in the evolution of a sustainable business ecosystem
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 03.11.2023)To address the grand challenges of sustainability, new organisational collaborative forms are required to blend industrial boundaries and approach global sustainability challenges from a broad multistakeholder perspective. ...