Hae LUTPubista
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Effect of Noncondensable Gases on Circulation of Primary Coolant in Nuclear Power Plants in Abnormal Situations
(2003-02-14)
The present study focuses on two effects of the presence of a noncondensable gas on the thermal-hydraulic behavior of thecoolant of the primary circuit of a nuclear reactor in the VVER-440 geometry inabnormal situations. ...
Computational Analysis and Optimization of Real Gas Flow In Small Centrifugal Compressors
(2006-12-12)
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 ...
On Modelling, System Identification and Control of Servo-Systems with a Flexible Load
(2007-06-16)
The present study was done with two different servo-systems. In the first system, a servo-hydraulic system was identified and then controlled by a fuzzy gainscheduling controller. The second servo-system, an electro-magnetic ...
JOHTAMISOPIT KUNTAORGANISAATIOSSA – diskursiivinen tutkimus sosiaali- ja terveystoimesta 1980-luvulta 2000-luvulle
(Lappeenranta University of Technology, 2011-02-04)
Julkisen sektorin johtamista on uudistettu viime vuosikymmeninä uuden julkisjohtamisen suuntauksen kautta. Tässä keskeistä ovat olleet markkinamekanismin sekä yksityissektorin johtamisoppien soveltaminen julkiselle sektorille. ...
Computational Evaluation of Print Unevenness According to Human Vision
(Lappeenranta University of Technology, 2010-12-11)
Print quality and the printability of paper are very important attributes when modern printing applications are considered. In prints containing images, high print quality is a basic requirement. Tone unevenness and non ...
Towards a better understanding of activity and selectivity trends involving K and O adsorption on selected metal surfaces
(Lappeenranta University of Technology, 2017-12-18)
Oxidation reactions are the basis of many applications in chemical industry, and the reaction rates are increased by the presence of a suitable metallic surface that acts as a catalyst. The basic factor in explaining the ...
Eye Fundus Image Analysis for Automatic Detection of Diabetic Retinopathy
(Lappeenranta University of Technology, 2010-12-12)
Diabetes is a rapidly increasing worldwide problem which is characterised by defective metabolism of glucose that causes long-term dysfunction and failure of various organs. The most common complication of diabetes is ...
Phase voltage control and filtering in a converter-fed single-phase customer-end system of the LVDC distribution network
(Lappeenranta University of Technology, 2010-11-19)
In recent years, the network vulnerability to natural hazards has been noticed. Moreover, operating on the limits of the network transmission capabilities have resulted in major outages during the past decade. One of the ...
Knowledge sharing in virtual communities
(Lappeenranta University of Technology, 2008-12-19)
The Internet has transformed the scope, boundaries and dynamics of social and economic interactions. It is argued to have broadened the notion of the community from physical, colocated groups towards collectives that are ...
Induction Motor Drive Energy Efficiency - Simulation and Analysis
(Lappeenranta University of Technology, 2010-08-27)
A coupled system simulator, based on analytical circuit equations and a finite element method (FEM) model of the motor has been developed and it is used to analyse a frequency-converterfed industrial squirrel-cage induction ...