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The Role of Surfactant Properties of Extractants in Hydrometallurgical LiquidLiquid Extraction Processes
(Lappeenranta University of Technology, 2000-10-20)
The amphiphilic nature of metal extractants causes the formation of micelles and other microscopic aggregates when in contact with water and an organic diluent. These phenomena and their effects on metal extraction were ...
The effects of real time control of welding parameters on weld quality in plasma arc keyhole welding
(Lappeenranta University of Technology, 2000-12-08)
Joints intended for welding frequently show variations in geometry and position, for which it is unfortunately not possible to apply a single set of operating parameters to ensure constant quality. The cause of this ...
Direct torque control of permanent magnet synchronous machines - analysis and implementation
(2000-06-30)
The direct torque control (DTC) has become an accepted vector control method beside
the current vector control. The DTC was first applied to asynchronous machines, and
has later been applied also to synchronous machines. ...
Lobbying as a Part of Business Management
(2000)
Lobbying by companies and the management techniques of lobbying have been fairly unknown territory. This study explains different theories related to lobbying including major political, economic and mathematical theories ...
A novel procedure for establishing clinching parameters for high strength steel sheet
(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 ...
Assessing the technical competitiveness of printing papers
(2000)
This dissertation studies the technical quality assessment of a printing paper. The theoretical framework basis on the customer value hierarchy concept and the product integrity concept. The experimental part of the research ...
Mass transfer and particleinteractions in granular systems and suspension flows
(2000-10-09)
The purpose of this study was to investigate some important features of granular flows and suspension flows by computational simulation methods. Granular materials have been considered as an independent state ofmatter ...
Multispectral image compression using the wavelet transform
(2000-12-11)
Multispectral images contain information from several spectral wavelengths and currently multispectral images are widely used in remote sensing and they are becoming more common in the field of computer vision and in ...
Welding time models for cost calculations in the early stages of the design process
(2000)
It is generally accepted that between 70 and 80% of manufacturing costs can be attributed to design. Nevertheless, it is difficult for the designer to estimate manufacturing costs accurately, especially when alternative ...
On Effort Estimation in Software Projects
(2000)
Software engineering is criticized as not being engineering or 'well-developed' science at all. Software engineers seem not to know exactly how long their projects will last, what they will cost, and will the software work ...