Aineistot 1-20 / 756

    • Knowledge Ecosystem Formation: An Institutional and Organisational Perspective 

      Almpanopoulou, Argyro
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 27.04.2019)
      The main purpose of this thesis is to provide a better understanding on knowledge ecosystem formation, that is, the factors and processes that result in the emergence of knowledge ecosystems and their particular forms of ...
    • Actors in Sustainability Transitions 

      Koistinen, Katariina
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 26.04.2019)
      The world is experiencing serious sustainability challenges, such as climate change and the loss of biodiversity. To respond to these sustainability challenges, there is a need for societies throughout the world to make ...
    • Ideation Stage in Computer-Aided Design 

      Efimov-Soini, Nikolai
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 18.04.2019)
      Delivering an idea and converting it into a design concept are critical steps in engineering design. In general, the departure point of these efforts is the existing version of a product or technology, an analog, or a ...
    • Supercritical CO2 Numerical Modelling and Turbomachinery Design 

      Ameli, Alireza
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 16.04.2019)
      Supercritical CO2 Brayton cycles have attracted significant attention in recent years on the basis that they can achieve higher thermal efficiency at relatively lower turbine inlet temperature in comparison to conventional ...
    • Experimentally validated numerical modelling of reacting multiphase flows in stirred tank reactors 

      Gradov, Dmitry
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 12.04.2019)
      Homogenization of reacting flows by mixing is often important in order to achieve high reaction rates. Mechanical RANSagitation is the usual way to homogenize fluids used in industry. When supplied to fluid media, mechanical ...
    • Big Data – Towards Data-driven Business 

      Ylijoki, Ossi
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 12.04.2019)
      This research stems from the disruptive phenomenon known as digital transformation, i.e. the pervasive use of digital technologies in order to add value in business. As a side effect of digital transformation, vast amounts ...
    • Agent-based modelling for epidemiological applications 

      Shcherbacheva, Anna
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 29.03.2019)
      Malaria is an infectious disease induced by protozoan parasite called Plasmodium and transmitted by Anopheles mosquitoes which still imposes a health threat to virtually half of the human populace and causes severe mortality, ...
    • Enhancement of decision-making in complex organizations: A systems engineering approach 

      Buzuku, Shqipe
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 22.03.2019)
      Effective methods to identify and model design processes are important for understanding organizational complexity. With this purpose, several modeling techniques for the design and development of decision-making processes ...
    • Complementarity and contextualization of firm-level strategic orientations 

      Beliaeva, Tatiana
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 08.02.2019)
      Strategic orientations, which reflect strategic behaviors implemented by a firm, have been widely associated with a firm’s competitiveness and performance. An extensive theoretical and empirical consideration has been ...
    • Mechanical Design Guidelines of an Electric Vehicle Powertrain 

      Gerami Tehrani, Mohammad
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 01.02.2019)
      The tendency of alternating fossil energy sources with state-of-the-art renewable energy resources is spreading in most contemporary fuel consuming applications, and transportation, as one of the essential human needs, is ...
    • Ni-Mn-Ga magnetic shape memory alloy for precise high-speed actuation in micro-magneto-mechanical-systems 

      Musiienko, Denys
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 17.01.2019)
      Single crystalline Ni-Mn-Ga alloys are known for their large reversible magnetic-field-induced strain (MFIS) of several percent. This effect was discovered and named magnetic shape memory (MSM) by K. Ullakko in 1996. Since ...
    • Enhancing the Adoption of Quantified Self-Tracking Devices 

      Khakurel, Jayden
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 19.12.2018)
      Over the past couple of years, quantified self-tracking wearable devices have become a promising emerging technology that can aid individuals in improving physical activities through behavior change. However, the adoption ...
    • Novel treatment methods for green liquor dregs and enhancing circular economy in kraft pulp mills 

      Golmaei, Seyedmohammad
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 17.12.2018)
      Green liquor dregs (GLD) are known to be the largest fraction of inorganic residue in the kraft pulping process, or even in virgin pulp production. GLD originates from the chemical recovery cycle where effective cooking ...
    • Improving the environmental safety of ash from bioenergy production plants 

      Soininen, Hanne
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 14.12.2018)
      Each year, energy production plants in Eastern Finland produce just under 100,000 tonnes of different types of ash and slag in the process of energy production. The utilisation of energy production ash flows has made ...
    • Fiber laser and hybrid welding of T-joint in structural steels 

      Unt, Anna
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 14.12.2018)
      Laser welding processes are amongst the most versatile joining technologies, suitable for both, small scale and mass production. The advancements in laser sources and optics is allowing autogenous laser beam welding to ...
    • Information-based industrial maintenance – an ecosystem perspective 

      Metso, Lasse
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 14.12.2018)
      In industrial maintenance, the increasing amount of data and information makes the management of information flows much more challenging than previously. Data from different sources is another issue, data can be real-time ...
    • Moving Object Analysis and Trajectory Processing with Applications in Human-Computer Interaction and Chemical Processes 

      Kuronen, Toni
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 13.12.2018)
      In order to better understand processes with moving objects using computer vision, it is important to be able to measure and to analyze how the objects move. The recent advances in imaging technology and in image-based ...
    • Intellectual capital and innovation: A comparison between high technology and low technology firms 

      Buenechea Elberdin, Marta (University of Deusto, 11.12.2018)
      The turbulent and challenging environment in which companies operate has contributed to the increasing interest of researchers to find new ways of innovating. Innovation essentially involves utilising knowledge resources ...
    • Twin boundary dynamics in magnetic shape memory alloy Ni-Mn-Ga five-layered modulated martensite 

      Saren, Andrey
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 10.12.2018)
      Ni-Mn-Ga magnetic shape memory (MSM) alloys are considered to be highly promising materials for actuation, damping, sensing and energy harvesting applications, due to the unique combination of a large transformation strain ...
    • Modified chitosan nanoparticles at liquid-liquid interface for applications in oil-spill treatment 

      Kalliola, Simo
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 10.12.2018)
      Oil-spills continue to be a serious threat to the environment and the climate change is expected to increase oil related industry and transportation in Arctic regions due to the melting of the ice cover. Nanoparticles ...