OF DOCTORAL DISSERTATION HELSINKI UNIVERSITY OF TECHNOLOGY P.O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author Kati Miettunen Name of the dissertation Performance and Stability of Dye Solar Cells on Stainless Steel Manuscript submitted 05.06.2009 Manuscript revised 09.09.2009 Date of the defence 23.10.2009 Monograph Article dissertation (summary + original articles) Faculty Faculty of Informat...

low-cost grapefruit peel (agricultural waste) was used for removal of reactive blue19 dye fromaqueous solutions. the process was studied as a function of contact time, initial dye concentration andph. adsorption process was attained to the equilibrium within 45 min for initial dye concentrations of 50,75, and 100 mg l-1. an acidic medium was the optimum condition for adsorption of dye at roomte...

A chemically sintered and binder-free paste of TiO2 nanoparticles (NPs) was prepared using a binary-liquid mixture 1-octanol CCl4. The 1:1 (v/v) complex CCl4 easily interacted with the NPs induced formation highly viscous paste. as-prepared (<bold>P</bold>BL)-based film exhibited complete removal residuals subsequent low-temperature sintering (~150°C) UV-O3 treatment. This facilitat...

The objective of this study is to investigate the combustion in a pilot-ignited supercharged dual-fuel engine, fueled with different types of gaseous fuels under various equivalence ratios. It is found that if certain operating conditions are maintained, conventional dual-fuel engine combustion mode can be transformed to the combustion mode with the two-stage heat release. This mode of combusti...

cooperative object manipulation control of rigid-flexible multi-body systems in space is studied in this paper. during such tasks, flexible members like solar panels may get vibrated that in turn may lead to some oscillatory disturbing forces on other subsystems, and consequently produces error in the motion of the end-effectors of the cooperative manipulating arms. therefore, to design and dev...