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    • Fabrication and characterization of silicon position sensitive particle detectors 

      Leinonen, Kari
      URN:ISSN:1456-4491Acta Universitatis Lappeenrantaensis (10.02.2006)
      Position sensitive particle detectors are needed in high energy physics research. This thesis describes the development of fabrication processes and characterization techniques of silicon microstrip detectors used in the ...

    • Facilitating coordination improvement efforts in cross-functional process development programs 

      Korhonen, Kirsi
      Acta Universitatis Lappeenrantaensis (19.06.2008)
      Business process improvement is a common approach in increasing the effectiveness of an organization. It can be seen as an effort to increase coordination between units. Process improvement has proved to be challenging, ...

    • Facilitating university-industry collaboration with a multi-level stakeholder perspective 

      Albats, Ekaterina
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 26.05.2018)
      University–industry collaboration has been acknowledged as a vital source of innovation. However, despite its rather long history, a number of barriers to such collaboration remain, and the ways to overcome them have ...

    • Factors affecting the usability of aspen (Populus tremula) wood dried at different temperature levels 

      Kärki, Timo
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 06.11.2009)
      In this dissertation the main aim was to study the usability of aspen wood in the mechanical wood processes, especially the factors that affect the usability of aspen wood, which is dried at different temperature levels. ...

    • Family ownership – a source of sustainable success in listed companies 

      Rantanen, Noora
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 18.12.2014)
      Extant research on exchange-listed firms has acknowledged that the concentration of ownership and the identity of owners make a difference. In addition, studies indicate that firms with a dominant owner outperform firms ...

    • Fast and accurate simulation of fluid power circuits in the presence of small volumes using advanced methods and models for numerical stiffness elimination 

      Ustinov, Stanislav
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 02.06.2023)
      The modeling and simulation of fluid power systems are essential parts of the real-time simulation of virtual prototypes of mobile working machines. In several cases, in the dynamic simulation of such fluid power systems, ...

    • Fast contact copper extraction 

      Tamminen, Jussi
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 19.12.2022)
      The intensification of copper solvent extraction was examined in this thesis. Extraction with hydroxyoximes is used in industry for copper separation. The reaction between hydroxyoxime and copper is a two-phase interfacial ...

    • Faster than real-time simulation of fluid power-driven mechatronic machines 

      Malysheva, Julia
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 01.06.2021)
      The level of automation of mechatronic machines, such as excavators, logging harvesters or fluid power-driven cranes, has increased significantly over the past few decades. In the machine industry, this led to the emergence ...

    • Fatigue performance and the effect of manufacturing quality on the uncoated and hot-dip galvanized ultra-high-strength steel laser cut edges 

      Lipiäinen, Kalle
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 30.11.2022)
      Fatigue performance is a key issue in weight critical applications. In this study, the effect of local surface characteristics influenced by laser cutting, hot-dip galvanizing (HDG) and stress concentration factors, is ...

    • Feasibility of industrial implementation of laser cutting into paper making machine 

      Stepanov, Alexander
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 04.09.2015)
      Laser cutting implementation possibilities into paper making machine was studied as the main objective of the work. Laser cutting technology application was considered as a replacement tool for conventional cutting methods ...

    • Fenton chemistry beyond remediating wastewater and producing cleaner water 

      Burgos Castillo, Rutely Concepcion
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 29.05.2020)
      The production, use and transformation of inorganic and organic chemical compounds are negatively affecting the global environment, whereas the disposal of byproducts generated at urban wastewater treatment plants isbecoming ...

    • Ferrite Permanent Magnet Hysteresis Loss in Rotating Electrical Machinery 

      Egorov, Dmitry
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 15.11.2019)
      Electrical machines with permanent magnets (PMs) find numerous applications in present energy-efficient technologies. A reasonable compromise in terms of costs and efficiency makes electrical machines with ferrite PMs a ...

    • 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 ...

    • Field Sales Management Control: Towards a Multi-Level Theory 

      Tarkiainen, Anssi
      Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (07.12.2007)
      The purpose of this dissertation is to increase the understanding and knowledge of field sales management control systems (i.e. sales managers monitoring, directing, evaluating and rewarding activities) and their potential ...

    • Financial literacy in perspective – evidence from Estonian and Finnish students 

      Mändmaa, Sirli
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 25.03.2022)
      Rapid evolution of the financial sector, and the shift of responsibility for long-term financial well-being from the states to the individuals, caused mainly by demographic changes, requires a deeper understanding and ...

    • Financial working capital - management and measurement 

      Talonpoika, Anna-Maria
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 06.05.2016)
      Unexpected changes in cash flow have started to occur more frequently after the financial crisis. The capital structures of companies have also changed, and financial flexibility as well as flexible asset management have ...

    • Finite element formulations for nonlinear beam problems based on the absolute nodal coordinate formulation 

      Bozorgmehri, Babak
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 29.10.2021)
      The spatial simulation of highly flexible bodies is becoming more effective and feasible thanks to the current state-of-the-art in the development of advanced formulations and computer processors. This makes it possible ...

    • First principles modeling of metallic alloys and alloy surfaces 

      Pitkänen, Heikki
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 29.10.2010)
      By alloying metals with other materials, one can modify the metal’s characteristics or compose an alloy which has certain desired characteristics that no pure metal has. The field is vast and complex, and phenomena that ...

    • Flexibility aggregation of local energy systems—interconnecting, forecasting, and scheduling 

      Mashlakov, Aleksei
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2021)
      The socio-technical transformation of the energy sector in pursuit of its decarbonization and innovations in digital and energy technologies are shifting the present electric power systems with a centralized governance to ...

    • Flexible multibody approach in bone strain estimation during physical activity: 

      Kłodowski, Adam
      Acta Universitatis Lappeenrantaensis (26.10.2012)
      Bone strain plays a major role as the activation signal for the bone (re)modeling process, which is vital for keeping bones healthy. Maintaining high bone mineral density reduces the chances of fracture in the event of ...