Selaus nimekkeen mukaan kokoelmassa Väitöskirjat
Aineistot 773-792 / 1039
-
Quantification of large steam bubble oscillations and chugging using image analysis
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 01.11.2019)The pressure suppression pool of a boiling water reactor as a safety system has vital importance from the nuclear reactor safety point of view. If a loss-of-coolant accident occurs, a large amount of steam is pushed through ... -
Quantification of synchronization
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 24.11.2023)Synchronization is a universal behavior that is crucial in a wide array of biological, physical, and technical systems. Some examples are flashing fireflies, cardiac and neural processes, non-linear electronic circuits, ... -
Quantitative approaches for detecting emerging technologies
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 30.11.2018)The rapid pace of globalization of science and technology increased the potential for high-impact technical capabilities to emerge in diverse technical, socio-economic, and geographic areas. Simultaneously, scientific ... -
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 ... -
Quantum transport phenomena and shallow impurity states in CdSb
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 17.12.2007)This work is dedicated to investigation of the energy spectrum of one of the most anisotropic narrow-gap semiconductors, CdSb. At the beginning of the present studies even the model of its energy band structure was not ... -
R&D Performance Analysis: Case Studies on the Challenges and Promotion of the Evaluation and Measurement of R&D
ActaUniversitatis LappeenrantaensisURN:ISSN:1456-4491 (12.12.2003)Due to the intense international competition, demanding, and sophisticated customers, and diverse transforming technological change, organizations need to renew their products and services by allocating resources on research ... -
Radio Frequency Measurement Method for Detecting Bearing Currents in Induction Motors
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 28.05.2009)Induction motors are widely used in industry, and they are generally considered very reliable. They often have a critical role in industrial processes, and their failure can lead to significant losses as a result of shutdown ... -
Radio-frequency-based measurement methods for bearing current analysis in induction motors
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 15.12.2014)The most common reason for a low-voltage induction motor breakdown is a bearing failure. Along with the increasing popularity of modern frequency converters, bearing failures have become the most important motor fault ... -
Rahavirta-analyysit, erityisesti kassavirtalaskelma, kunnan talouden ohjauksen apuvälineenä
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2001)The aim of this research was to determine whether a cash basis financial statement would give additional value for the financial management of a local government and whether the cash flow statement would assist in getting ... -
Railcarrier in Intermodal Freight Transportation Network
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (18.12.2003)The major objective of this thesis is to describe and analyse how a railcarrier is engaged in an intermodal freight transportation network through its role and position. Because of the fact that the role as a conceptualisation ... -
Raw Material Supply and its Influence on Profitability and Life-Cycle Assessment of Torrefied Pellet Production in Finland – Experiences from Pilot-Scale Production
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 05.11.2021)The European climate policy aims to move toward an environmentally friendly world, and it has been awakened by a strong will to find replacement fuel alternatives to fossil fuels, especially for coal. Torrefied pellets ... -
Reaction Kinetics and Viscosity Modelling in the Fusion Syntheses of Ca- and Ca/Mg-resinates
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 18.12.1999)Rosin is a natural product from pine forests and it is used as a raw material in resinate syntheses. Resinates are polyvalent metal salts of rosin acids and especially Ca- and Ca/Mg- resinates find wide application in the ... -
Reactive crystallisation studies of CaCO3 processing via a CO2 capture process : real-time crystallisation monitoring, fault detection, and hydrodynamic modelling
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 04.11.2022)Currently, a broad spectrum of decarbonisation efforts are ongoing in fundamental areas of human lifestyle to mitigate the global concerns materialising from climate-related transformations. Within the framework of carbon ... -
Real-Time Efficient Computational Approaches for Hydraulic Components and Particulate Energy Systems
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 11.12.2020)The so-called fourth industrial revolution requires high-speed data transmission and application of real-time computation to the phenomena. These two technologies highlight the potential of the digital-twin concept for ... -
Real-time Image-based RGB-D Camera Motion Tracking and Environment Mapping
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 22.11.2013)In this work, image based estimation methods, also known as direct methods, are studied which avoid feature extraction and matching completely. Cost functions use raw pixels as measurements and the goal is to produce ... -
Real-time monitoring of membrane fouling caused by phenolic compounds
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 09.10.2020)Following the booming blooming of the bio-economy, membrane-based processes have gained increasing interest as a selective, energy efficient, and environmentally friendly option for the separation and purification of organic ... -
Real-Time Simulation of Mobile and Industrial Machines Using the Multibody Simulation Approach
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 18.09.2009)This thesis introduces a real-time simulation environment based on the multibody simulation approach. The environment consists of components that are used in conventional product development, including computer aided ... -
Real-time simulation of multibody systems with applications for working mobile vehicles
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 01.04.2016)This dissertation describes an approach for developing a real-time simulation for working mobile vehicles based on multibody modeling. The use of multibody modeling allows comprehensive description of the constrained ... -
Recognizing required changes to higher education engineering programs’ information literacy education as a consequence of research problems becoming more complex
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 2018)Challenges in the Earth’s sustainable development set requirements to modern engineering education. Engineers face complex problems, which need to be solved to keep the planet viable for future generations. This study was ...