Abstract: The invention relates to a biocatalytic direct alcohol fuel cell comprising an anode chamber, one or more cathode chambers, and an ion exchange membrane between the chambers. The anode chamber contains a biocatalyst for oxidation of the fuel, and the cathode chamber contains a chemical catalyst, a biocatalyst or a combination thereof for reduction of oxygen or a corresponding oxidant.

Abstract: An arrangement and method for generating electric power, the arrangement comprising several biocatalytic fuel cell units for generating electric power. The arrangement also comprises one ore more capacitors for balancing and storing the voltage generated by the biocatalytic fuel cell units, and means for connecting the voltage generated by the biocatalytic fuel cell units cyclically to the one or more capacitors.

Abstract: The invention relates to a biocatalytic direct alcohol fuel cell comprising an anode chamber, one or more cathode chambers, and an ion exchange membrane between the chambers. The anode chamber contains a biocatalyst for oxidation of the fuel, and the cathode chamber contains a chemical catalyst, a biocatalyst or a combination thereof for reduction of oxygen or a corresponding oxidant.

Abstract: A method and apparatus for outlining the manipulation environment of a duty machine automatically determines its working cycles. The method includes a laser pointer (2) which measures the direction and distance of the laser beam with respect to an object. By means of the pointer there is registered a set of points (1), which can be formed of separate pointes or of continuous lines and which gives a rough illustration of the entire manipulation space, i.e. its free space and the objects located therein. The set of points is completed to form a model of the manipulation environment both by means of geometric plane figures (primitive volumes)(3) sent from the user's keyboard, and by means of mathematical algorithms, in order to match the spatial planes and curves with the given set of points. The automatically determined trajectories are corrected during the working performance according to the feedback information received from the object under operation.