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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 ...
Market potentialfor free-cutting steels in Europe
(1999)
Työn tavoitteena oli selvittää tilannetta Euroopan automaattiteräsmarkkinoilla ja sen perusteella arvioida Imatra Steelin mahdollisuuksia kilpailla kyseessä olevilla markkinoilla. Tärkein tavoite oli kokonaismarkkinapotentiaalin ...
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 ...
Sähkökäyttöjen kaapelivärähtelyt
(1999)
Taajuudenmuuttajan kytkennän synnyttämä nopea jännitemuutos aiheuttaa
pitkään moottorikaapeliin sähköisen värähtelyilmiön. Ilmiö on
tullut erityisesti esille uusien nopeasti kytkevien puolijohdetehokytkimien
ilmestyttyä ...
Electronic Data Interchange in Logistics Processes
(1999)
Tämän diplomityön tarkoituksena oli tehdä selvitys EDI:in liittyvistä vaikutuksista, tarpeista ja eduista sekä valmistella Oracle Applications- toiminnanohjausjärjestelmän EDI Gateway- modulin ottamista tuotantokäyttöön. ...
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 ...