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Aineistot 791-800 / 1037
Laadun kehittäminen suomalaisissa yrityksissä
(2001-11-09)
Laadun ja sen kehittämisen sisältö on ollut jatkuvassa muutostilassa. Laatuajattelu on laajentunut käsittämään yhä suuremman osan organisaatioiden toiminnasta. Laadun kehittämisessä on jatkuvasti otettu käyttöön uusi ...
Process intensification: From optimised flow patterns to microprocess technology
(Lappeenranta University of Technology, 2008-12-19)
This thesis is focused on process intensification. Several significant problems and applications of this theme are covered. Process intensification is nowadays one of the most popular trends in chemical engineering and ...
Fabrication and characterization of silicon position sensitive particle detectors
(2006-02-10)
Position sensitive particle detectors are needed in high energy physics research. This thesis describes the development of fabrication processes and characterization techniques of silicon microstrip detectors used in the ...
A novel approachfor assessing the fatigue strength of ultrasonic impact treated welded structures.
(2007-12-18)
It is commonly observed that complex fabricated structures subject tofatigue loading fail at the welded joints. Some problems can be corrected by proper detail design but fatigue performance can also be improved using ...
Gas-liquid mass transfer in bubbly flow: Estimation of mass transfer, bubble size and reactor performance in various applications
(2005-12-05)
Gas-liquid mass transfer is an important issue in the design and operation of many chemical unit operations. Despite its importance, the evaluation of gas-liquid mass transfer is not straightforward due to the complex ...
Numerical modelling of small supersonic axial flow turbines
(Lappeenranta University of Technology, 2010-08-25)
Supersonic axial turbine stages typically exhibit lower efficiencies than subsonic axial turbine stages. One reason for the lower efficiency is the occurrence of shock waves. With higher pressure ratios the flow inside the ...
Influence of stationary phase and eluent properties on chromatographic separation of carbohydrates
(2002-12-13)
In this thesis, the sorption and elastic properties of the cation-exchange resins were studied to explain the liquid chromatographic separation of carbohydrates. Na+, Ca2+ and La3+ form strong poly(styrene-co-divinylbenzene) ...
An experimental and theoretical study of multiphase flow in a circulating fluidized bed
(Lappeenranta University of Technology, 1989-08-11)
A systematic averaging procedure has been derived in order to obtain an integral form of conservation equations for dispersed multiphase flow, especially applicable to fluidized beds. A similar averaging method is applied ...
Field Sales Management Control: Towards a Multi-Level Theory
(2007-12-07)
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 ...
Fractional slot permanent magnet synchronous motors for low speed applications
(2004-12-20)
This study compares different rotor structures of permanent magnet motors with fractional slot windings. The surface mounted magnet and the embedded magnet rotor structures are studied. This thesis analyses the characteristics ...