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Effects of adaptive GMAW processes: Performance and dissimilar weld quality
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 21.06.2017)The last decades have seen growing demand for welding of dissimilar steels, in particular, as a part of efforts to improve transportation safety and, by weight reduction, to improve fuel consumption. Moreover, in ... -
The effects of real time control of welding parameters on weld quality in plasma arc keyhole welding
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 08.12.2000)Joints intended for welding frequently show variations in geometry and position, for which it is unfortunately not possible to apply a single set of operating parameters to ensure constant quality. The cause of this ... -
The effects of social networks on work-team effectiveness
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 05.12.2009)This is a study of team social networks, their antecedents and outcomes. In focusing attention on the structural configuration of the team this research contributes to a new wave of thinking concerning group social capital. ... -
The Effects of Some Furnish and Paper Structure Related Factors on Wet Web Tensile and Relaxation Characteristics
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 01.10.2010)The objective of this thesis was to identify the effects of different factors on the tension and tension relaxation of wet paper web after high-speed straining. The study was motivated by the plausible connection between ... -
The effects of some variables on CO2 laser-MAG hybrid welding
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 23.05.2008)The CO2-laser-MAG hybrid welding process has been shown to be a productive choice for the welding industry, being used in e.g. the shipbuilding, pipe and beam manufacturing, and automotive industries. It provides an ... -
Effects of the partial removal of wood hemicelluloses on the properties of kraft pulp
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 04.12.2014)The objective of this work was to study the effects of partial removal of wood hemicelluloses on the properties of kraft pulp.The work was conducted by extracting hemicelluloses (1) by a softwood chip pretreatment process ... -
Effects of unbalanced magnetic pull on rotordynamics of electric machines
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 21.05.2021)The unbalanced magnetic pull (UMP) that results from air-gap eccentricity can present a potential risk to the lifetime and dynamic stability of rotating electric machines. Nevertheless, a method to identify the effects of ... -
Electric-drive-based control and electric energy regeneration in a hydraulic system
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.08.2011)Over the recent years, development in mobile working machines has concentrated on reducing emissions owing to the tightening rules and needs to improve energy utilization and reduce power losses. This study focuses on ... -
Electro-Oxidation Treatment of Pulp and Paper Mill Circulating Waters and Wastewaters
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 30.07.2013)Interest in water treatment by electrochemical methods has grown in recent years. Electrochemical oxidation has been applied particularly successfully to degrade different organic pollutants and disinfect drinking water. ... -
Electrochemical Characterisation of Filter Media Properties and Their Exploitation in Enhanced Filtration
LTKK Tieteellisiä julkaisuja- Research papers (30.10.1998)Streaming potential measurements for the surface charge characterisation of different filter media types and materials were used. The equipment was developed further so that measurements could be taken along the surfaces, ... -
Electrochemical recovery of rare-earth elements from NdFeB magnets
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 09.12.2022)The use of the rare-earth elements (REEs) is steadily increasing and, on the other hand, possibilities for their substitution in modern advanced technologies, especially in green energy applications, are limited. Recently, ... -
Electrocoagulation in the treatment of industrial waters and wastewaters
VTT Science (VTT Technical Research Centre of Finland, 02.11.2012)Chemical coagulation is commonly used in raw water and wastewater treatment plants for the destabilisation of pollutants so that they can be removed in the subsequent separation processes. The most commonly used coagulation ... -
Electromagnetic and thermal design of a multilevel converter with high power density and reliability
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 13.08.2015)Electric energy demand has been growing constantly as the global population increases. To avoid electric energy shortage, renewable energy sources and energy conservation are emphasized all over the world. The role of ... -
Electromagnetic Design of a Solid Steel Rotor Motor for Demanding Operation Environments
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2007)The solid-rotor induction motor provides a mechanically and thermally reliable solution for demanding environments where other rotor solutions are prohibited or questionable. Solid rotors, which are manufactured of single ... -
Empirical studies on software quality construction: Exploring human factors and organizational influences
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.08.2015)Software quality has become an important research subject, not only in the Information and Communication Technology spheres, but also in other industries at large where software is applied. Software quality is not a ... -
Empirical studies on the adoption and implementation of ERP in SMEs in developing countries
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 25.05.2018)Enterprise resource planning (ERP) helps organizations to centralize their activities, to improve their communications, to reduce their operational and maintenance costs, and basically to have a single integrated application ... -
Empirical study on the adoption, use and effects of cloud-based testing
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.06.2014)Cloud computing is a practically relevant paradigm in computing today. Testing is one of the distinct areas where cloud computing can be applied. This study addressed the applicability of cloud computing for testing ... -
Employee trust repair in the context of organizational change – identification and measurement of active trust repair practices
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 21.01.2022)Organizational trust is positively related with employee job satisfaction, firm performance and productivity. However, the current disrupted work environment with unpredictable changes is challenging for employee trust. ... -
Enabling constructive alignment in programming instruction
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 10.06.2011)In this thesis, simple methods have been sought to lower the teacher’s threshold to start to apply constructive alignment in instruction. From the phases of the instructional process, aspects that can be improved with ... -
Energy Efficiency Analyses of Hybrid Non-Road Mobile Machinery by Real-Time Virtual Prototyping
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 12.01.2018)Striving for energy efficiency and tightening emission regulations for diesel engines drive the non-road mobile machinery towards new driveline solutions, diesel-electric hybridization being one of them. Series hybridization ...