Uusimmat aineistot

  • Käyttäjät liikuntapalvelujen kehittäjinä – käyttäjälähtöisessä palveluinnovaatioprosessissa käyttäjien tuottama tieto tutkimuksen kohteena 

    Harmokivi-Saloranta, Paula
    Acta Universitatis Lappeenrantaensis (Lappeenrannan-Lahden teknillinen yliopisto LUT, 17.01.2020)
    Suomalaiset liikkuvat terveytensä kannalta liian vähän. Ihmisten liikkumista on edistetty useilla eri tavoilla. Kansanterveyden näkökulmasta liikkumisen edistäminen onkin välttämätöntä, jotta voitaisiin ennaltaehkäistä ...
  • The efficiency and damage control of a recovery boiler 

    Pöllänen, Ilkka
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 16.12.2019)
    Recovery boilers are needed to produce sustainable energy from sideline by-products of the biomass processing industry. Customers need boilers which have a reliable, long operation time without unnecessary shutdowns and ...
  • Heuristic similarity- and distance-based supervised feature selection methods 

    Lohrmann, Christoph
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 16.12.2019)
    In the field of machine learning, the available data often contain many features to describe phenomena. This can pose a problem since only those features that are relevant to characterize the target concept are needed, ...
  • Psychological aspects of entrepreneurship – How personality and cognitive abilities influence leadership 

    Palmer, Carolin
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 18.12.2019)
    About 100 years after Schumpeter’s initial work on “The Theory of Economic Development“, research on entrepreneurship is still a growing and remarkably dynamic field that comprises various research streams and builds on ...
  • Grid Support by Battery Energy Storage System Secondary Applications 

    Alaperä, Ilari
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2019)
    Global developments in renewable energy and energy efficiency of the power consumption present challenges to maintain the frequency stability of the electricity grids. The objective of the research is to investigate how ...
  • Optimizing the specific energy consumption of vacuum filtration 

    Huttunen, Manu
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2019)
    Vacuum filtration is applied in solid-liquid separation in a wide variety of industrial processes for instance in the mining, chemical, and paper industries. The main contributor to the considerable energy consumption of ...
  • Sustainable business models for advancing system-level sustainability 

    Laukkanen, Minttu
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2019)
    Sustainability challenges call for changes at different levels and scales, and actions by all sectors of society, including business. Prior research has identified the central role corporate strategies, innovations, and ...
  • Identifying the influence of an operational environment on environmental impacts of waste management 

    Liikanen, Miia
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2019)
    Ever-increasing waste generation, resource depletion and awareness of adverse environmental impacts all factor into the growing application of life cycle assessment (LCA) as a method for evaluating the potential environmental ...
  • Operational level performance measurement in university-industry collaboration 

    Rantala, Tero
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 12.12.2019)
    Even though the third mission and entrepreneurial activities of universities are continuously growing issues within higher education and society as a whole, and even though different measures are currently used to evaluate ...
  • Investigation of EEG signal processing for rehabilitation robot control 

    Hekmatmanesh, Amin
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2019)
    A significant number of stroke patients suffer from movement disability and the numbers are increasing annually. The Brain Computer Interface (BCI) science enables solutions for the paralyzed patients based on the location ...
  • Novel Methods for Assessing and Improving Usability of a Remote-operated Off-Road Vehicle Interface 

    Abdullah, Ummi Noor Nazahiah binti
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 09.12.2019)
    Autonomous control systems have been under intensive development in the off-road vehicle (ORV) industry because of high demand for increasing productivity in recent decades. In those systems, the progress has happened in ...
  • Growth for the Common Good? Social enterprises’ growth process 

    Tykkyläinen, Saila
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 09.12.2019)
    Social enterprises are expected to contribute to solving some of the most vicious problems of our time, including poverty, inequality and environmental threats. Thus, social enterprises need to tailor scalable operational ...
  • Software Sustainability by Design 

    Oyedeji, Shola
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 05.12.2019)
    In our current world, software impacts almost everything; it connects people and forms the cornerstone for the economy, as such, has an impact on sustainability and the emerging sustainable development goals (SDGs). ...
  • Learning and entrepreneurial opportunity development within a Finnish telecommunication International New Venture 

    Tuomisalo, Teemu
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 05.12.2019)
    This dissertation investigates the development of entrepreneurial opportunity in a Finnish International New Venture (INV) operating in the telecommunication sector by applying a learning-based approach. Despite decades ...
  • Mass transfer modeling in slow-release dissolution and in reactive extraction using experimental verification 

    Lahdenperä, Esko
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 05.12.2019)
    In this thesis, models related to mass transfer operations were studied in two cases. One study case was the dissolution of potassium chloride (KCl) particles in water, and another study case was the reactive solvent ...
  • On the dynamic simulation of coupled multibody and hydraulic systems for real-time applications 

    Rahikainen, Jarkko
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 29.11.2019)
    The computer simulation of mechanical systems enables engineers to perform fast prototyping and in-depth system analysis even before a single physical model has been built. However, since mechanical systems are often ...
  • The linguistic approximation of fuzzy models outputs 

    Talásek, Tomás
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 29.11.2019)
    Linguistic approximation is a process of assigning linguistic labels to various mathematical objects, frequently ones that are obtained as outputs of fuzzy models. Such an assignment cannot be arbitrary – the usual requirement ...
  • Improving the DC-DC Power Conversion Efficiency in a Solid Oxide Fuel Cell System 

    Hiltunen, Jani
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 29.11.2019)
    The solid oxide fuel cell (SOFC) is a promising technology for combined heat and power generation as it provides low local emissions, high efficiency, and fuel flexibility. However, the unique electrical characteristics ...
  • Design and control of a permanent magnet bearingless machine 

    Jaatinen, Pekko
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 29.11.2019)
    The overall efficiency of high-speed applications can be improved by applying direct drive motor technology. Operating in the high-speed region is a demanding task for the traditional bearing technology. With active magnetic ...
  • High Power Fiber Laser Welding of Thick Section Materials – Process Performance and Weld Properties 

    Grünenwald, Stefan
    Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 27.11.2019)
    High power fiber laser systems have reached output powers far beyond 30 kW and a fiber laser source of 100 kW output power has recently become available for fundamental research. With the high laser power that is now ...

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