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Validation Studies of Thermal-hydraulic Code for Safety Analysis of Nuclear Power Plants
(1995-10-27)
This thesis gives an overview of the validation process for thermal hydraulic system codes and it presents in more detail the assessment and validation of the French code CATHARE for VVER calculations. Three assessment ...
The high-speed induction motor: calculating the effects of solid-rotor material on machine characteristics
(the Finnish Academy of Technology, 1991)
A method for the analysis of high-speed solid-rotor induction motors in presented. The analysis is based on a new combination of the three dimensional linear method and the transfer matrix method. Both saturation and finite ...
Design and analysis of a transversal-flux switched-reluctance-linear-machine pole-pair
(Lappeenranta University of Technology, 1999-12-18)
The Switched Reluctance technology is probably best suited for industrial low-speed or zerospeed applications where the power can be small but the torque or the force in linear movement cases might be relatively high. ...
Fouling management and retention in nanofiltration of integrated paper mill effluents
(Lappeenranta University of Technology, 1999-04-23)
Nanofiltration performance was studied with effluents from the pulp and paper industry and with model substances. The effect of filtration conditions and membrane properties on nanofiltration flux, retention, and fouling ...
New Distance Transforms for Gray Level Image Compression
(Lappeenranta University of Technology, 1996-04-27)
This thesis deals with distance transforms which are a fundamental issue in image processing and computer vision. In this thesis, two new distance transforms for gray level images are presented. As a new application for ...
Reaction Kinetics and Viscosity Modelling in the Fusion Syntheses of Ca- and Ca/Mg-resinates
(Lappeenranta University of Technology, 1999-12-18)
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 ...
Analysis and Control of Excitation, Field Weakening and Stability in Direct Torque Controlled Electrically Excited Synchronous Motor Drives
(Lappeenranta University of Technology, 1998)
Direct torque control (DTC) is a new control method for rotating field electrical machines. DTC controls directly the motor stator flux linkage with the stator voltage, and no stator current controllers are used. With the ...
Development a distributed simulation environment on a cluster of workstations
(Lappeenranta University of Technology, 1998-12-15)
Simulation has traditionally been used for analyzing the behavior of complex real world problems. Even though only some features of the problems are considered, simulation time tends to become quite high even for common ...
Improving the Potentials of Logistics Processes: Identification and Solutions
(Lappeenranta University of Technology, 1998-10-21)
The importance of logistics for companies is a well known and justified issue. Today, enterprises are developing their logistics processes in order to match their products and services to the requirements of the most ...
A Study on Fractionation and Ultrafiltration of Proteins with Characterized Modified and Unmodified Membranes
(1996-08-23)
Membrane filtration has become increasingly attractive in the processing of both foodand biotechnological products. However, the poor selectivity of the membranes and fouling are the critical factors limiting the development ...