Abstract: The present invention relates to a method of producing a polypeptide having ?-hexosaminidase activity, comprising the steps of a) providing a yeast cell comprising a polynucleotide encoding a polypeptide having ?-hexosaminidase activity and having an amino acid sequence being at least 95% identical to the amino acid sequence shown in SEQ ID NO: 1, b) cultivating said yeast cell under conditions which allow for the production of the polypeptide, and c) obtaining the polypeptide produced in step b). The present invention further concerns a polynucleotide encoding a polypeptide having ?-hexosaminidase activity and having an amino acid sequence being at least 95% identical to the amino acid sequence shown in SEQ ID NO: 1, as well as polypeptide encoded by said polynucleotide. Moreover, the present invention concerns a yeast cell comprising the polynucleotide of the present invention.

Abstract: A fragmentation system for electrodynamic fragmentation of material contains a feed and an outlet for transporting material along a transport path in a transport direction. At least one high-voltage pulse source is provided, each of the high-voltage pulse sources contains at least one first electrode and at least one second electrode for generating a high-voltage discharge in a discharge chamber. The transport path has a fractionation section, and the fractionation section extends through the discharge chamber. A selection device for selectively extracting the material on the transport path is provided in order to channel material and/or fragments of the material having a diameter smaller than a minimum diameter past at least one portion of one of the fractionation sections.

Abstract: The present invention relates to a method for forming fruit and vegetables by means of ultrasonic waves, to a convenience food item comprising fruit and vegetables formed in this way, and to the use of ultrasonic waves for forming fruit and vegetables.

Abstract: The present invention relates to calcium-containing, porous, mineral materials having a sulfate content of not more than 1.5% by weight and a biopolymer content in the range of 0.001 to 5.00% by weight, each relative to the total weight of the materials, a method for producing these materials with the aid of biopolymers as stabilizers and the use of biopolymers for producing sulfate-poor calcium-containing, porous, mineral materials.

Abstract: The present invention relates to a process for the processing and/or purification of carbon black comprising the steps of: a) providing carbon black containing impurities b) providing an aqueous fluid comprising a nitrogen hydride c) providing an alkali metal hydroxide and/or an alkali metal d) contacting the mixture of step a), the fluid of step b) and the alkali metal hydroxide and/or alkali metal of step c) e) subjecting the composition obtained in step d) to an elevated temperature in the range of 80 to 240° C. and an elevated pressure in the range of 5 to 50 bar f) separating a carbonaceous solid from the composition obtained in step e). The present invention further relates to the use of a nitrogen hydride as a dispersing agent for producing and/or stabilizing an aqueous suspension.

Abstract: The subject matter of the present application relates to a test method for determining the risk potential of an alkali-silica reaction in mineral construction materials such as concrete. The test method may be characterized by the steps of: a) examining (220) a sample (12) by means of Raman spectroscopy for providing a structural characterization (230) of the sample (12), b) comparing (240) the examination result to values (250) stored in a database, and c) using (260) the result of the comparison (240) for ascertaining (270) a risk potential for the concrete for an alkali-silica reaction.

Abstract: A fragmentation system for electrodynamic fragmentation of material contains a feed and an outlet for transporting material along a transport path in a transport direction. At least one high-voltage pulse source is provided, each of the high-voltage pulse sources contains at least one first electrode and at least one second electrode for generating a high-voltage discharge in a discharge chamber. The transport path has a fractionation section, and the fractionation section extends through the discharge chamber. A selection device for selectively extracting the material on the transport path is provided in order to channel material and/or fragments of the material having a diameter smaller than a minimum diameter past at least one portion of one of the fractionation sections.

Abstract: An improved threshold assembly for mounting on a door and a door sill is described which includes a sill-mounted portion with a threshold plate formed of nonmagnetically attracted material and a door-mounted portion with a door cap for mounting on the bottom edge of the door with a flexible magnet-holding device. Two elongated magnets are mounted one in each portion of the threshold assembly, and, when the door is in the closed position, the magnets are positioned one on top of the other. The magnets are structured so that the opposite edges have opposite polarity and are mounted with adjacent magnet edges having unlike polarity. During closing of the door, the edges of like polarity approach and repel one another and causes the magnet-holding device to move away from the threshold plate.

Abstract: A threshold assembly for mounting on a door and a door sill is described which includes a threshold plate assembly formed of nonmagnetically attracted material and a door cap assembly for mounting on the bottom edge of the door. The threshold plate assembly has a first stepped portion with a substantially vertical face extending medially along the bottom edge of the door. This first stepped portion comprises: a riser portion and a stair portion extending from the lower edge of the riser portion inwardly toward and beyond the interior surface of a door. Second stepped portion on the bottom edge of a door includes the lowermost portion corresponding to stair portion of the first stepped portion and the uppermost portion corresponding to a saddle portion. A magnet mounting device for attachment to the lowermost portion of a second stepped portion includes: a slot extending substantially vertically adjacent the lowermost portion and a guard plate extending substantially horizontally adjacent the stair portion.