Viimeksi syötetyt Väitöskirjat
Aineistot 1-20 / 769
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Modification of carbon-based electrodes using metal nanostructures : Application to voltammetric determination of some pharmaceutical and biological compounds
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 16.08.2019)In this study, new modified carbon-based electrodes were fabricated and applied in the detection and determination of several medicines and water pollutants. Modification enhanced the use of these electrodes for analytical ... -
Towards a sustainable valorisation of spilled oil by establishing a green chemistry between a surface active moiety of chitosan and oils
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 15.08.2019)This thesis presents fabrication of sustainable surfactants from bio-polymer and demonstrates their performance in dispersion of spilled oil with different quality of water and climatic conditions, to provide a sustainable ... -
Pulsed corona discharge for wastewater treatment and modification of organic materials
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 02.07.2019)Sustainable development is one of the most important questions in the contemporary world. Wastewater treatment and the search for renewable sources of organic products are essential, not only in the future but also for ... -
Agent-Based Modeling as Part of Biomass Supply System Research
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 ... -
Atomic Layer Deposition of Catalytic Materials for Environmental Protection
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 11.06.2019)The reduction of toxic pollutants emitted by human activities to ambient air is an important issue nowadays. The technological approach to this problem is the development of different oxidation techniques together with ... -
Modelling and Disturbance Compensation of a Permanent Magnet Linear Motor with a Discontinuous Track
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 11.06.2019)It is very common that industrial applications require linear motion in some part of the process, especially in transportation of products from place to place. Traditional technologies to produce short-distance linear ... -
Selective recovery of rare earth elements from diluted aqueous streams using n- and o-coordination ligand grafted organic-inorganic hybrid composites
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 04.06.2019)The dominance exerted by the rare earth elements (REE) on the significant technological advancements of the past decades has been unmitigated and unparalleled. With such an eminent role played by REEs, there exists a ... -
Synthesis of hybrid bio-nanocomposites and their application for the removal of rare earth elements from synthetic wastewater
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 03.06.2019)In recent decades, the application of rare earth elements (REEs) has become apparent in numerous technological sectors. The gap in the supply and demand of REEs, as well as the increasing pollution of REEs, has raised the ... -
Quantitative indicators of social sustainability applicable in process systems engineering
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 23.05.2019)The emerging interest in sustainability for process systems engineering is motivated by the need to create an environmentally, economically and socially stable society. This is because companies have realized that profit ... -
Advanced Techniques for Unsupervised Classification of Remote Sensing Hyperspectral Images
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 ... -
CFD-based optimization for wind turbine locations in a wind park
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 10.05.2019)Searching for the optimal positions of wind turbines in a wind farm for their maximal power generation has an important and difficult role in the wind energy industry. Several factors have to be considered while designing ... -
Perspectives on business model experimentation in internationalizing high-tech companies
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 10.05.2019)The main research question addressed in this doctoral dissertation is “How do high-tech companies employ business model experimentation in their internationalization processes?” As the business model concept is itself ... -
Automation of the conceptual design process in construction industry using ideas generation techniques
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 ... -
Knowledge Ecosystem Formation: An Institutional and Organisational Perspective
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
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
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
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
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
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
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, ...
