Abstract: A hydraulic piston machine is described comprising a piston (1) having a hollow (2) secured by a wall (3) and an insert (4) arranged in the hollow. Such a machine should have a high efficiency at low costs. To this end the insert (4) comprises a section (29) which extends out of the hollow (2).

Abstract: In a method of producing biogas by anaerobic digestion of organic matter, organic matter is dried to a dry solids content of at least 50% by weight TS and pelletized and then mixed with a liquid to form a slurry. The slurry is contacted with biogas-producing bacteria for digestion under anaerobic conditions in a reactor (102) while producing biogas.

Abstract: A software system including at least one MAPI client component, a model adapter, and a model sub system. The MAPI client component(s) operate in a COM environment, the model adapter operates partly in the COM environment and partly in a .NET environment, and the model sub system operates partly or fully in the .NET environment. The MAPI client component(s), the model adapter, and the model sub system are arranged to communicate with each other.

Abstract: A method of producing biogas by anaerobic digestion of organic matter comprises the steps of grinding organic matter, mixing the organic matter with a liquid to form a slurry with a dry solids content of 15-45% by weight TS, feeding the slurry to a tank reactor (2) and, in the tank reactor, contacting the slurry with biogas-producing bacteria for digestion under anaerobic conditions, and digesting the slurry in the tank reactor (2) at a dry solids content of 5-10% by weight TS while producing biogas. A device (1) for producing biogas by anaerobic digestion of organic matter comprises a sealable, essentially gas-tight tank reactor (2) having an inlet (4) for organic matter and outlets (6, 8) for produced biogas and formed digested sludge. The device (1) has a premixing tank (18) for mixing ground organic matter with a liquid to a slurry with a dry solids content of 15-45% by weight TS and a feed pipe (26, 4) for feeding the slurry to the tank reactor (2).

Abstract: In a method of producing biogas by anaerobic digestion of organic matter, organic matter dried to a dry solids content of at least 50% by weight TS and pelletised is mixed with a liquid to form a slurry. The slurry is contacted with biogas-producing bacteria for digestion under anaerobic conditions in a reactor (102) while producing biogas. A device (100) for producing biogas by anaerobic digestion of organic matter comprises a sealable, essentially gas-tight reactor (102) having an inlet (104) for organic matter and outlets (106, 108) for produced biogas and formed digested sludge. The device (100) comprises a premixing tank (118) for mixing organic matter dried to a dry solids content of at least 50% by weight and pelletised, with a liquid to a slurry and a feed pipe (104) for feeding the slurry to the reactor (102).

Abstract: The invention relates to absorbent articles, such as diapers and like articles and is concerned with methods for preventing undesirable odors and/or preventing the growth of undesirable microorganisms when the articles are in use, and also provides an absorbent article which can be worn for long periods of time without generating undesirable odors, incurring the risk of infection or having a negative effect on skin. Another object is to amplify the presence in the wearer's urogenital zone of microbiological flora that will assist in preventing the occurrence of urinal tract infections. These objects have been achieved by adding to the absorbent articles microorganisms which exhibit antagonistic properties against present undesirable strains of microorganisms, so as to restrain the growth of these or establishing of new undesirable species.

Abstract: An agent which possesses antimicrobial properties and a minimum tendency, or a completely discontinued tendency, to produce contact allergic reactions or toxic effects includes a mixture of a compound which produces Zn.sup.2+ -ions and one or more so-called resin acids or other resin compounds or resin acid derivatives present in the purest possible form, and to the use of the agent in preparing skin, wound, teeth and mucus-membrane treatment products, and to such products as insulating material, building material, paper, surface treatment material, disinfectants, cosmetics and like products which contain conventionally different types of resins.