Viimeksi syötetyt Väitöskirjat
Aineistot 21-40 / 1215
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Transforming primary sludge originating from pulp and paper industry into sustainable composites : technical feasibility and climate benefits
Acta Universitatis Lappeenrantaensis : 1283 (Lappeenranta-Lahti University of Technology LUT, 15.05.2026)This dissertation investigates the valorization of primary sludge from the pulp and paper industry as a filler material in high-density polyethylene (HDPE) composites. The research addresses the need for sustainable ... -
A systematic approach to using artificial intelligence as surrogate and generative models in energy systems : applications in carbon capture and electricity markets
Acta Universitatis Lappeenrantaensis : 1288 (Lappeenranta-Lahti University of Technology LUT, 26.05.2026)Artificial intelligence (AI) is revolutionizing numerous fields, yet its application in energy systems has been slow. This dissertation introduces and validates a systematic approach to leveraging AI, focusing on the ... -
Mathematical models and optimization methods in biomedical applications
Acta Universitatis Lappeenrantaensis : 1286 (Lappeenranta-Lahti University of Technology LUT, 22.05.2026)This thesis introduces computational design approaches for denture reinforcement and personalized drug delivery. The work focuses on three objectives: (1) strengthening dentures by using reinforcement material in critical ... -
Planning and optimization of smart local energy systems for cost-effective decarbonization
Acta Universitatis Lappeenrantaensis : 1284 (Lappeenranta-Lahti University of Technology LUT, 19.05.2026)The energy transition in cold-climate regions calls for integrated and localized solutions that balance cost, emissions, self-sufficiency, and robustness. Current planning approaches for smart local energy systems (SLESs) ... -
The effect of various learning environments on the development of adolescents’ entrepreneurial potential
Acta Universitatis Lappeenrantaensis : 1280 (Lappeenranta-Lahti University of Technology LUT, 08.05.2026)This dissertation explores how different kinds of learning environments (school, family, and hobbies) affect the development of adolescents’ entrepreneurial potential. Entrepreneurial potential is defined as a combination ... -
Performance management with novel technologies : integrating sustainability performance in digital transformation
Acta Universitatis Lappeenrantaensis : 1281 (Lappeenranta-Lahti University of Technology LUT, 28.04.2026)Performance management (PM) has evolved from a static evaluation mechanism into a strategic capability for adaptability, innovation and value creation in organisations. In today’s digitally accelerated and sustainability-conscious ... -
Money and time in sustainable consumption : a well-being perspective
Acta Universitatis Lappeenrantaensis : 1279 (Lappeenranta-Lahti University of Technology LUT, 21.04.2026)Humanity faces intertwined ecological and social crises that demand deep systemic transformation. Despite global awareness and political efforts such as the Paris Agreement, dominant responses to these crises remain locked ... -
Creasability of novel-coated paperboards for packaging production
Acta Universitatis Lappeenrantaensis : 1278 (Lappeenranta-Lahti University of Technology LUT, 27.03.2026)Driven by sustainability concerns, the use of traditional plastic-based packaging is being questioned owing to its poor degradability and recyclability, and the packaging industry has increasingly reported strong interest ... -
Organisational intention to invest in energy efficiency improvements and perceptions of energy efficiency in buildings
Acta Universitatis Lappeenrantaensis : 1277 (Lappeenranta-Lahti University of Technology LUT, 25.03.2026)The energy efficiency gap in buildings, meaning the gap between the potential and executed energy efficiency, is a prevailing paradox. Prior research on the phenomenon has focused on consumer and individual energy efficiency ... -
Experimental study on the influence of wall thickness and scanning strategy in laser powder bed fusion of Ni-Mn-Ga magnetic shape memory alloys
Acta Universitatis Lappeenrantaensis : 1276 (Lappeenranta-Lahti University of Technology LUT, 09.03.2026)This dissertation examines the optimization of laser powder bed fusion (PBF-LB) for the fabrication of Ni–Mn–Ga magnetic shape memory (MSM) alloys with controlled crystallographic orientation and improved magneto-functional ... -
Magnetic shape memory alloy Ni50Mn27Ga22Fe1 with commensurate and incommensurate modulations : thermal and stress-induced transformations
Acta Universitatis Lappeenrantaensis : 1275 (Lappeenranta-Lahti University of Technology LUT, 13.02.2026)This dissertation advances the understanding of crystal structure, phase transformations, and mechanical properties in Ni50Mn27Ga22Fe1 magnetic shape memory alloy by combining experimental investigations with the development ... -
Finite-horizon optimisation and control of dynamic systems with uncertainty
Acta Universitatis Lappeenrantaensis : 1274 (Lappeenranta-Lahti University of Technology LUT, 06.02.2026)This dissertation addresses the optimisation and control of dynamic systems operating over finite time horizons under uncertainty. The work proposes a methodology for deriving time-dependent feedback controllers from known ... -
Institutional design and organised system change for sustainable urban mobility : shifting gears for transformative outcomes
Acta Universitatis Lappeenrantaensis : 1272 (Lappeenranta-Lahti University of Technology LUT, 30.01.2026)This dissertation investigates how sustainability transitions in urban mobility can be effectively organised and governed to achieve transformative system change. Despite growing recognition of the transport sector’s ... -
Design, analysis, and manufacturing of low-power high-speed synchronous generators
Acta Universitatis Lappeenrantaensis : 1273 (Lappeenranta-Lahti University of Technology LUT, 06.02.2026)High-speed electrical machines are vital components in modern engineering systems, offering significant advantages in performance, efficiency, and compactness. Their ability to operate at elevated rotational speeds enables ... -
Metalliteollisuuden alihankkijoiden suorituskyvyn vertailu ja kehittämismahdollisuudet
Acta Universitatis Lappeenrantaensis : 1271 (Lappeenrannan-Lahden teknillinen yliopisto LUT, 09.01.2026)Suomalaisen metalliteollisuuden alihankkijat toimivat yhä kovenevassa globaalissa kilpailuympäristössä, jossa menestyminen edellyttää tehokkuutta, innovatiivisuutta ja sopeutumiskykyä. Ulkomaiset alihankkijat tarjoavat ... -
Optical and photoelectric modeling of thick film bacteriorhodopsin sensors
Acta Universitatis Lappeenrantaensis : 1270 (Lappeenranta-Lahti University of Technology LUT, 09.01.2026)This dissertation addresses the structural characterization and optimization of thick-film bacteriorhodopsin (BR) sensors, aiming to advance their applicability in optoelectronics and imaging. BR, with its robust light-driven ... -
Integrating user-centered design into scrum: a canvas approach
Acta Universitatis Lappeenrantaensis : 1268 (Lappeenranta-Lahti University of Technology LUT, 16.01.2026)Scrum is a widely adopted Agile framework in the software industry due to its focus on speed and communication. Despite its popularity, Scrum often falls short in addressing end-user needs, usability is often overlooked, ... -
Advanced synthesis and characterization of metal–organic frameworks for diverse applications
Acta Universitatis Lappeenrantaensis : 1269 (Lappeenranta-Lahti University of Technology LUT, 15.12.2025)Metal–organic frameworks (MOFs) and zeolitic imidazolate frameworks (ZIFs) represent a remarkable class of porous crystalline materials, distinguished by their highly ordered structures, large surface areas, and chemical ... -
Battling with the tensions in sustainable packaging
Acta Universitatis Lappeenrantaensis : 1248 (Lappeenranta-Lahti University of Technology LUT, 12.12.2025)This dissertation investigates the systemic tensions that arise during the transition from conventional plastics to sustainable packaging systems, focusing on biobased plastics and reusable packaging. While these eco-innovations ... -
Integrating sustainability into software engineering education
Acta Universitatis Lappeenrantaensis : 1266 (Lappeenranta-Lahti University of Technology LUT, 12.12.2025)Software systems are not only the backbone of the knowledge economy but also powerful forces shaping society. Their rapid expansion over recent decades has driven innovation and efficiency across sectors, yet this growth ...
