Selaus nimekkeen mukaan kokoelmassa Väitöskirjat

    • Adaptive MCMC methods with applications in environmental and geophysical models 

      Laine, Marko
      Finnish Meteorological Institute Contributions (Finnish Meteorological Institute, 14.03.2008)
      This work presents new, efficient Markov chain Monte Carlo (MCMC) simulation methods for statistical analysis in various modelling applications. When using MCMC methods, the model is simulated repeatedly to explore the ...
    • Additional revenue opportunities in pulp mills and their impacts on the kraft process 

      Hamaguchi, Marcelo
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 18.12.2013)
      Although the concept of multi-products biorefinery provides an opportunity to meet the future demands for biofuels, biomaterials or chemicals, it is not assured that its implementation would improve the profitability of ...
    • Adsorptive removal of harmful organic compound from aqueous solutions 

      Turku, Irina
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 21.12.2010)
      Adsorption is one of the most commonly used methods in water treatment processes. It is attractive due to it easy operation and the availability of a wide variety of commercial adsorbents. This doctoral thesis focuses on ...
    • Advanced analysis and design methods for preparative chromatographic separation processes 

      Siitonen, Jani
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.12.2014)
      Preparative liquid chromatography is one of the most selective separation techniques in the fine chemical, pharmaceutical, and food industries. Several process concepts have been developed and applied for improving the ...
    • Advanced chemometric methods: Applicability on industrial data 

      Kohonen, Jarno
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 06.11.2009)
      Recent years have produced great advances in the instrumentation technology. The amount of available data has been increasing due to the simplicity, speed and accuracy of current spectroscopic instruments. Most of these ...
    • Advanced Techniques for Unsupervised Classification of Remote Sensing Hyperspectral Images 

      Hassanzadeh, Aidin
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 20.05.2019)
      Hyperspectral images consisting of a broad range of contiguous spectral bands ought to be a valuable tool for land cover type mapping. However, the coarse spatial resolutions of remote sensing Hyperspectral images makes a ...
    • Advancing sustainability-oriented innovations in industrial markets 

      Patala, Samuli
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 09.09.2016)
      Sustainability has become a new imperative for industrial firms as the global limits of environmental impacts are becoming more evident. Scarcity of natural resources, tightening environmental regulations and consumer ...
    • Agent-Based Modeling as Part of Biomass Supply System Research 

      Aalto, Mika
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 14.06.2019)
      Interest in the use of agent-based modeling (ABM) for studying biomass supply systems has increased because of its flexible and cost-efficient nature. While ABM has been around for a long time, recent developments in ...
    • 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, ...
    • Aging based maintenance and reinvestment scheduling of electric distribution 

      Korpijärvi, Juha
      Acta Universitatis Lappeenrantaensis (23.11.2012)
      The maintenance of electric distribution network is a topical question for distribution system operators because of increasing significance of failure costs. In this dissertation the maintenance practices of the distribution ...
    • Aircraft tracking and classification with vhf passive bistatic radar 

      Ptak, Piotr
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 25.06.2015)
      Since the times preceding the Second World War the subject of aircraft tracking has been a core interest to both military and non-military aviation. During subsequent years both technology and configuration of the radars ...
    • Ajopuusta asiantuntijaksi – luottamushenkilöarvioinnin merkitys kunnan johtamisessa ja päätöksenteossa 

      Laihanen, Anna-Leena
      Acta Universitatis Lappeenrantaensis (Lappeenrannan teknillinen yliopisto, 03.04.2009)
      Tässä johtaminen ja organisaatiot –oppialaan kuuluvassa väitöstutkimuksessa selvitetään luottamushenkilöarvioinnin merkitystä kunnan johtamisessa ja päätöksenteossa. Tutkimuksessa kuvataan luottamushenkilöiden tekemää ...
    • AMB system for high-speed motors using automatic commissioning 

      Smirnov, Alexander
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 18.12.2012)
      The general trend towards increasing e ciency and energy density drives the industry to high-speed technologies. Active Magnetic Bearings (AMBs) are one of the technologies that allow contactless support of a rotating ...
    • An approach for distinct information privacy risk assessment 

      Laakkonen, Jussi
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 18.11.2017)
      Privacy is a a basic human right and a foundational issue of the digital world but also a complex concept to comprehend; the term is commonly misunderstood through secrecy. The struggle with privacy has been, and will be ...
    • An experimental and theoretical investigation of power losses in planetary gearboxes 

      Nutakor, Charles
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.10.2018)
      Gearboxes based on planetary gear sets are preferred for their advantages, such as higher gear ratios, improved self-centering capabilities, kinematic flexibility, favorable bearing support conditions and higher power ...
    • Analysis and Control of Excitation, Field Weakening and Stability in Direct Torque Controlled Electrically Excited Synchronous Motor Drives 

      Pyrhönen, Olli
      Tieteellisiä julkaisuja - Research papers (Lappeenranta University of Technology, 1998)
      Direct torque control (DTC) is a new control method for rotating field electrical machines. DTC controls directly the motor stator flux linkage with the stator voltage, and no stator current controllers are used. With the ...
    • Analysis and modelling of chemical looping combustion process with and without oxygen uncoupling 

      Peltola, Petteri
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 11.12.2014)
      Effective control and limiting of carbon dioxide (CO₂) emissions in energy production are major challenges of science today. Current research activities include the development of new low-cost carbon capture technologies, ...
    • Analysis and validation of space averaged drag model for numerical simulations of gas-solid flows in fluidized beds 

      Shah, Srujal
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 13.12.2012)
      This thesis presents an approach for formulating and validating a space averaged drag model for coarse mesh simulations of gas-solid flows in fluidized beds using the two-fluid model. Proper modeling for fluid dynamics ...
    • Analysis of electricity distribution network operation business models and capitalization of control room functions with DMS 

      Tanskanen, Anna
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 26.11.2010)
      Electricity distribution network operation (NO) models are challenged as they are expected to continue to undergo changes during the coming decades in the fairly developed and regulated Nordic electricity market. Network ...
    • Analysis of Industrial Granular Flow Applications by Using Advanced Collision Models 

      Huang, Jun
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 19.12.2007)
      Granular flow phenomena are frequently encountered in the design of process and industrial plants in the traditional fields of the chemical, nuclear and oil industries as well as in other activities such as food and materials ...