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A novel procedure for establishing clinching parameters for high strength steel sheet
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2000)The building industry has a particular interest in using clinching as a joining method for frame constructions of light-frame housing. Normally many clinch joints are required in joining of frames.In order to maximise the ... -
Conflict-based Method for Conceptual Process Synthesis
Acta Universitatis Lappeenrantaensis ISSN 1456-4491URN:ISSN:1456-4491 (15.10.2004)The changing business environment demands that chemical industrial processes be designed such that they enable the attainment of multi-objective requirements and the enhancement of innovativedesign activities. The requirements ... -
Data-parallel computation in parallel and distributed environments
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2002)The past few decades have seen a considerable increase in the number of parallel and distributed systems. With the development of more complex applications, the need for more powerful systems has emerged and various parallel ... -
The Influence of Process Conditions on the Deresination Efficiency in Mechanical Pulp Washing
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (07.06.2002)The aim of this thesis was to produce information for the estimation of the flow balance of wood resin in mechanical pulping and to demonstrate the possibilities for improving the efficiency of deresination in practice. ... -
Introducing massively parallel computers into operational weather forecasting
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (20.12.2002)Numerical weather prediction and climate simulation have been among the computationally most demanding applications of high performance computing eversince they were started in the 1950's. Since the 1980's, the most powerful ... -
Washing and Dewatering of Different Starches in Pressure Filters
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (10.11.2006)The main objective of this thesis was togenerate better filtration technologies for effective production of pure starchproducts, and thereby the optimisation of filtration sequences using created models, as well as the ... -
Exploring the strategic impact of technological change - Studies on the role of Internet in magazine publishing
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (19.09.2007)Over the past few decades, turbulent change has characterized the situation in the media industry. It has been noted that digitalization and new media are strongly influencing the industry: it is changing the existing ... -
Field Sales Management Control: Towards a Multi-Level Theory
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (07.12.2007)The purpose of this dissertation is to increase the understanding and knowledge of field sales management control systems (i.e. sales managers monitoring, directing, evaluating and rewarding activities) and their potential ... -
Computational Analysis and Optimization of Real Gas Flow In Small Centrifugal Compressors
Acta Universitatis LappeenrantaensisURN:NBN:ISSN:1456-4491 (12.12.2006)Small centrifugal compressors are more and more widely used in many industrialsystems because of their higher efficiency and better off-design performance comparing to piston and scroll compressors as while as higher work ... -
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 ... -
Development of fibre recovery process
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2002)The fiber recovery process is an essential part of the modern paper mill. It creates the basisfor mill's internal recirculation of the most important raw materials ¿ water and fiber. It is normally also a start point for ... -
Observations on Software Testing Practice
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (26.10.2007)This thesis investigates factors that affect software testing practice. The thesis consists of empirical studies, in which the affecting factors were analyzed and interpreted using quantitative and qualitative methods. ... -
Direct-on-line axial flux permanent magnet synchronous generator static and dynamic performance
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (27.11.2007)In distributed energy production, permanent magnet synchronous generators (PMSG) are often connected to the grid via frequency converters, such as voltage source line converters. The price of the converter may constitute ... -
Particle transport method for convection-diffusion-reaction problems
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (01.12.2007)Convective transport, both pure and combined with diffusion and reaction, can be observed in a wide range of physical and industrial applications, such as heat and mass transfer, crystal growth or biomechanics. The numerical ... -
Choice of Optimal MembraneProcesses for Economical Treatment of Paper Machine Clear Filtrate
LTKK Tieteellisiä julkaisuja - Research papersURN:ISSN:0356-8210 (1997)In this thesis membrane filtration of paper machnie clear filtrate was studied. The aim of the study was to find membrane processes which are able to produce economically water of sufficient purity from paper machine white ... -
Supply chain integration: studies on linking customer responsiveness and operational efficiency in logistics policy planning
Acta Universitatis Lappeenrantaensis ISSN 1456-4491URN:ISSN:1456-4491 (2004)Abstract The research problem in the thesis deals with improving the responsiveness and efficiency of logistics service processes between a supplier and its customers. The improvement can be sought by customizing the ... -
Information System ProcessInnovation Adoption, Adaptation, Learning, and Unlearning: A Longitudinal Case Study
Acta Universitatis Lappeenrantaensis (2005)This thesis examines the history and evolution of information system process innovation (ISPI) processes (adoption, adaptation, and unlearning) within the information system development (ISD) work in an internal information ... -
Wet Oxidation of Concentrated Wastewaters: Process Combination and Reaction Kinetic Modeling
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2003)The accumulation of aqueous pollutants is becoming a global problem. The search for suitable methods and/or combinations of water treatment processes is a task that can slow down and stop the process of water pollution. ... -
Studies on integrating kinematic design method with mechanical systems simulation techniques
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2004)Theultimate goal of any research in the mechanism/kinematic/design area may be called predictive design, ie the optimisation of mechanism proportions in the design stage without requiring extensive life and wear testing. ... -
Practical applications of a systematic approach to the chemical abatement of pollutants in water and air
Acta Universitatis LappeenrantaensisURN:ISSN:1456-4491 (2002)The present dissertation is devoted to the systematic approach to the development of organic toxic and refractory pollutants abatement by chemical decomposition methods in aqueous and gaseous phases. The systematic approach ...
