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    • Atomic level phenomena on transition metal surfaces 

      Lahti, Matti
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 26.08.2011)
      In this study we discuss the atomic level phenomena on transition metal surfaces. Transition metals are widely used as catalysts in industry. Therefore, reactions occuring on transition metal surfaces have large industrial ...

    • Augmented Reality Based on Human Needs 

      Yahya, Manal
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 15.09.2022)
      Augmented reality (AR) is a fascinating information visualization technology. Whilen Thomas Caudell coined the term AR in 1992, technology development over the recent years led to AR’s unprecedented growth, making it a ...

    • Augmented reality in consumer retail : a presence theory approach 

      Lavoye, Virginie
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 20.10.2023)
      This doctoral dissertation investigates the role of virtual try-ons (VTOs) enabled by augmented reality (AR) to foster positive consumer responses using a presence theory approach. Presence refers to the sense that a virtual ...

    • Automated formulation of optimisation models for steel beam structures 

      Kilkki, Juha
      Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (13.12.2002)
      Over 70% of the total costs of an end product are consequences of decisions that are made during the design process. A search for optimal cross-sections will often have only a marginal effect on the amount of material used ...

    • Automated, adaptive methods for forest inventory 

      Junttila, Virpi
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 04.02.2011)
      Forest inventories are used to estimate forest characteristics and the condition of forest for many different applications: operational tree logging for forest industry, forest health state estimation, carbon balance ...

    • Automatic image-based re-identification of ringed seals 

      Nepovinnykh, Ekaterina
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 19.08.2022)
      Automated wildlife re-identification has attracted increasing attention in recent years as it provides a non-invasive tool to identify and track individual wild animals over time. Animal re-identification, together with ...

    • Automation of the conceptual design process in construction industry using ideas generation techniques 

      Renev, Ivan
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 10.05.2019)
      Early design stage in Construction projects is a crucial part of the sophisticated longterm design process. Here many fundamental and critical decisions are being taken. The more successful and innovative solutions are ...

    • Axial Flux Permanent Magnet Machines – Development of Optimal Design Strategies 

      Jara Montecinos, Werner Eduardo
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 08.12.2016)
      Nowadays, rotational electrical machines are involved in all our daily activities. Modern life is inconceivable without electrical machines, both motors and generators, and therefore, machine designers can be considered ...

    • Bag-of-Features Approach to Unsupervised Visual Object Categorisation 

      Kinnunen, Teemu
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.12.2011)
      The large and growing number of digital images is making manual image search laborious. Only a fraction of the images contain metadata that can be used to search for a particular type of image. Thus, the main research ...

    • Balanced Scorecardin implementointi ja käytön nykytila Suomessa 

      Toivanen, Jouko Ensio
      Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2001)
      Lisääntynyt Balanced Scorecardin käyttö herätti kiinnostuksen tutkia, mistä BSC:ssä oli oikein kysymys. Epäonnistumiset BSC-projekteissa vaikuttivat siihen, että haluttiin tutkia, mikä nykyisissä projektimalleissa oli ...

    • Bayesian analysis of SEIR epidemic models 

      Rusatsi, Denis Ndanguza
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 18.12.2015)
      This thesis concerns the analysis of epidemic models. We adopt the Bayesian paradigm and develop suitable Markov Chain Monte Carlo (MCMC) algorithms. This is done by considering an Ebola outbreak in the Democratic Republic ...

    • Bayesian inference by informative Gaussian features of the data 

      Springer, Sebastian
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 05.02.2021)
      Given a set of measurements, a model can be calibrated to data by minimising a cost function that captures the model-data difference. The standard cost function for deterministic models is the residual sum of squares between ...

    • Bayesian likelihoods for intractable data 

      Maraia, Ramona
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 01.12.2023)
      We live in the Information Age, specific historical moment in which making well-informed decisions is often decisive for the survival of projects and investments. In the past decade, consistent efforts have been dedicated ...

    • Bayesian methods for estimation, optimization and experimental design 

      Solonen, Antti
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 11.11.2011)
      Mathematical models often contain parameters that need to be calibrated from measured data. The emergence of efficient Markov Chain Monte Carlo (MCMC) methods has made the Bayesian approach a standard tool in quantifying ...

    • Benefits from Open Data: Barriers to Supply and Demand of Open Data in Private Organizations 

      Herala, Antti
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.10.2018)
      Open data is a concept that has been somewhat readily adopted by governments. The key ideology behind open data is to release previously restricted data with a licence that allows all forms of use, reuse, and redistribution. ...

    • Between Memory and Strategy: Media Discourse Analysis of an Industrial Shutdown 

      Ahonen, Pasi
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.12.2014)
      In 2006 UPM was able to gain a level of social legitimacy that allowed it to carry out one of the largest industrial restructuring programmes in Finnish industrial history, shut down major operations in Finland and still ...

    • 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 ...

    • Biogas production in regional integrated biodegradable waste treatment – Possibilities for improving energy performance and reducing GHG emissions 

      Havukainen, Jouni
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 05.12.2014)
      The greatest threat that the biodegradable waste causes on the environment is the methane produced in landfills by the decomposition of this waste. The Landfill Directive (1999/31/EC) aims to reduce the landfilling of ...

    • Bioprospecting for Nordic photosynthetic consortia for wastewater treatment, carbon capture, and value creation 

      Wicker, Rebecca J.
      Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2023)
      Microalgal biotechnology has been proposed as a potential solution to multiple global challenges, especially carbon capture, wastewater treatment, and bioproduction of valuable fuels and materials. Conventional microalgal ...

    • Blood vessel segmentation in the analysis of retinal and diaphragm images 

      Vostatek, Pavel
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 06.04.2018)
      The segmentation and characterization of structures in medical images represents an important part of the diagnostic and research procedures in medicine. This thesis focuses on the characterization methods in two application ...