Search for dissertations about: "cobalt effect"

Showing result 21 - 25 of 58 swedish dissertations containing the words cobalt effect.

  2. 21. Overcoming the Mass Transport Limitations of Dye-Sensitised Solar Cells : Towards highly efficient and robust alternative redox mediator electrolyte DSSCs

    Author : Roger Jiang; Gerrit Boschloo; Erik Johansson; Anders Hagfeldt; Frédéric Sauvage; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dye-sensitised solar cell; dye-sensitized solar cell; photoelectrochemical cell; cobalt tris bipyridine ; mass transport; photocurrent transients;

    Abstract : Dye-sensitised solar cells (DSSCs) have been subject to decadelong research interest, and may have some potential niche market applications. Recently, major advances in power conversion efficiencies have been achieved following the transition to cobalt polypyridine based redox mediators. READ MORE

  4. 22. SiC CMOS and memory devices for high-temperature integrated circuits

    Author : Mattias Ekström; Carl-Mikael Zetterling; B. Gunnar Malm; Tobias Erlbacher; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bismuth titanate Bi4Ti3O12 ; CMOS; ferroelectric capacitor; field oxide; inverter; metallisation; metal oxide semiconductor field effect transistor MOSFET ; ohmic contacts; ring oscillator; semiconductor processing; silicon carbide 4H-SiC ; CMOS; ferroelektrisk kondensator; fältoxid; halvledartillverkning; inverterare; kiselkarbid 4H-SiC ; metallisering; MOSFET; ohmska kontakter; ringoscillator; vismuttitanat Bi4Ti3O12 ; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : High-temperature electronics find use in extreme environments, like data logging in downhole drilling for geothermal energy production, inside of high-temperature turbines, industrial gas sensors and space electronics. The simplest systems use a sensor and a transmitter, but more advance electronic systems would additionally require a microcontroller with memory. READ MORE

  5. 23. Adenosine receptors and stress : studies using methylmercury, caffeine and hypoxia

    Author : Olga Björklund; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Adenosine; adenosine receptors; knock-out mice; methylmercury; caffeine; hypoxia; cobalt chloride;

    Abstract : Brain development is a precisely organized process that can be disturbed by various stress factors present in the diet (e.g. exposure to xenobiotics) as well as insults such as decreased oxygen supply. READ MORE

  6. 24. In vitro evaluation of hip prostheses

    Author : H Lucas Anissian; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Aseptic loosening and periprosthetic osteolysis are the most common complications (5-10% in 10 years follow up) after total hip arthroplasty. Polyethylene debris appears to play a major role in this process. READ MORE

  7. 25. Kinetics of the catalytic hydrogenation of oxygen and its application to a process for deoxygenation of refinery gases

    Author : C. G. Bertil Hammar; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : A literature survey shows the detrimental effect of oxygen in refinery gases for various processes, and the need for a deoxygenation process. The present work has been confined to gases containing hydrogen sulfide, as is the case with shale gas. READ MORE