Abstract: The invention relates to a heat shield element for lining a combustion chamber wall, to a combustion chamber and to a gas turbine. The heat shield element comprises a hot side that can be exposed to a hot medium, a wall side opposite said hot side, and a peripheral side adjoining the hot side and the wall side and having a peripheral side surface. Relief slots are introduced into the material in an area of the heat shield element that is susceptible to material cracks induced by thermal stress, thereby limiting crack propagation.

Abstract: The invention relates to soluble rubella E1 antigens and variants of these antigens. The antigens contain amino acids 201 to 432 or 169 to 432 and are lacking amino acids 453 to 481 as well as at least the amino acids 143 to 164. They further contain a region spanning two disulfide-bridges. The invention also relates to a recombinant DNA molecule encoding the rubella E1 antigens, the expression of rubella E1 antigens as chaperone fusion proteins and their use in a method of detecting antibodies against rubella in a sample.

Abstract: The invention relates to a copolymer which is suitable as a superplasticizer for hydraulic binders and comprises 5 to 55 mol % of an isoprenol polyether derivative structural unit, 2 to 90 mol % of an acrylic acid derivative structural unit and 2 to 90 mol % of a hydroxyalkyl acrylate structural unit.

Abstract: The invention relates to a process for the preparation of an aqueous solution comprising 30 to 95% by weight of water and 5 to 70% by weight of a copolymer dissolved in the water by free radical solution polymerizations of an isoprenol polyether derivative with an acrylic acid derivative, so that the copolymer has 20 to 45 mol % of an isoprenol polyether derivative structural unit and 55 to 80 mol % of an acrylic acid derivative structural unit. The aqueous solution is suitable as a superplasticizer for hydraulic binders.

Abstract: The invention relates to a process for the preparation of a copolymer in a semicontinuous mode of operation in a polymerization apparatus containing a polymerization reactor connected to a metering device, in each case acid monomer being initially introduced into the metering device and polyether macromonomer and water into the polymerization reactor, acid monomer being metered from the metering device into the polymerization reactor, free radical polymerization initiator being passed into the polymerization reactor before and/or during the metering of the acid monomer into the polymerization reactor, so that an aqueous medium forms in the polymerization reactor, in which aqueous medium acid monomer and polyether macromonomer are reacted by free radical polymerization with formation of the copolymer, at least 70 mol % of the polyether macromonomer initially introduced into the polymerization reactor being converted by the free radical polymerization, the conversion of the acid monomer giving rise in the copol

Abstract: The invention relates to a copolymer which can be used as a superplasticizer for hydraulic binders and comprises 30 to 47 mol % of a (meth)allyl alcohol polyether derivative structural unit and 53 to 70 mol % of a maleic acid derivative structural unit.

Abstract: Preparing a non-ionic copolymer having a hydrolysable monomer residue and a polyether macromonomer residue in a semicontinuous mode in a polymerization reactor associated with a metering device, including introducing polyether macromonomer and water into the reactor, wherein hydrolysable monomer which is added thereto forms a polymerization reaction mixture; introducing hydrolysable monomer into the metering device; adding hydrolysable monomer into the reactor from the metering device; passing a free radical polymerization initiator into the reactor before and/or during the addition of the hydrolysable monomer, the hydrolysable monomer and the polyether macromonomer reacting by free radical polymerization to form the non-ionic copolymer; and, subjecting the reaction mixture to polymerization while an addition rate of the hydrolysable monomer and/or at least a component of the polymerization initiator is varied stepwise or continuously.

Abstract: Disclosed are a recombinant DNA molecule encoding a fusion protein comprising a SlpA chaperone and a target polypeptide wherein human FK506 binding proteins (FKBPs) are excluded as target polypeptides, a corresponding expression vector encoding said fusion protein as well as host cells transformed with said expression vector. Also disclosed are a method for producing the fusion protein, a recombinantly produced fusion protein comprising a SlpA chaperone and a target polypeptide. A further aspect of the invention is the use of the recombinantly produced fusion protein, and a reagent kit containing a recombinantly produced fusion protein comprising a SlpA chaperone and a target polypeptide.

Abstract: A soluble rubella E1 antigen variant is disclosed that comprises amino acids 334-409 of the native rubella E1 peptide, but lacks the C-terminal end and at least the transmembrane region and the anchor segment as well as at least the amino acids 143 to 164. Also described is a recombinant DNA molecule encoding the rubella E1 antigen variants which are recombinantly expressed as a chaperone fusion protein, refolded into a soluble and immunoreactive conformation, and further used for the serological detection of anti-rubella antibodies. In addition, also disclosed is a method for the detection, determination and quantification of anti-rubella antibodies of IgG and/or IgM subclass in a sample wherein the rubella E1 antigen is used as a capture reagent and/or binding partner for the antibodies.

Abstract: Copolymers based on unsaturated mono- or dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers and optionally vinylic polyalkylene glycol or ester compounds are described and also their use as additives for aqueous suspensions based on mineral or bituminous binders, in particular cement, gypsum, lime, anhydrite, or other calcium sulphate-based binders, and based on pulverulent dispersion binders. The copolymers according to the invention impart to the aqueous binder suspensions a very good dispersing and liquefying action with, at the same time, simultaneous excellent processing properties. Moreover, the oxyalkylene glycol alkenyl ethers according to the invention are industrially relatively simple and inexpensive to prepare and need comparatively low initiator concentrations in the copolymerization.

Abstract: The invention relates to a heat shield element for lining a combustion chamber wall, to a combustion chamber and to a gas turbine. The heat shield element comprises a hot side that can be exposed to a hot medium, a wall side opposite said hot side, and a peripheral side adjoining the hot side and the wall side and having a peripheral side surface. Relief slots are introduced into the material in an area of the heat shield element that is susceptible to material cracks induced by thermal stress, thereby limiting crack propagation.

Abstract: The present invention relates to fusion proteins: suitable as test antigens in the detection of infections with pathogens, particularly of primary infections with pathogens. Further, the invention relates to methods for detecting and differentially determining antibodies, particularly IgM antibodies resulting from an infection with a pathogenic organism. Furthermore, test reagents for carrying out these methods are provided.

Abstract: The invention discloses the cloning, expression and uses of a chimeric fusion protein with superior chaperone and folding activities compared to the wild type chaperones. This invention relates to a chimeric fusion protein encoded by a recombinant DNA molecule comprising nucleotide sequences coding for a polypeptide binding segment of a non-human chaperone protein and nucleotide sequences coding for an FK506 binding protein (FKBP) or an FK506-binding-protein-like domain (FKBP-like domain).

Abstract: The present invention relates to the cloning and expression of foreign protein or polypeptides in bacteria, such as Escherichia coli. In particular, this invention relates to expression tools comprising a FKBP-type peptidyl prolyl isomerase selected from the group consisting of FkpA, SlyD, and trigger factor; methods of recombinant protein expression, the recombinant polypeptides thus obtained, as well as to the use of such polypeptides.

Abstract: The present invention concerns a cement additive containing copolymers comprising one or more constitutional units represented by formula A: (A) R1 is hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 1 to 4 carbon atoms or an aryl group having 6 to 9 carbon atoms; R2 is hydrogen or an alkyl group having 1 to 9 carbon atoms, an alkenyl group having 1 to 9 carbon atoms or an aryl group having 6 to 9 carbon atoms; T is alkylene (including straight-chain and branched alkylene) having 1 to 4 carbon atoms or arylene having 6 to 9 carbon atoms; n is 0 or 1; S1 and S2 are, independently of one another, —OCkH2k— or —OCH2CHR3—, with the proviso that k is 2 or 3, R3 is an alkyl group having 1 to 9 carbon atoms, an aryl group having 6 to 9 carbon atoms; and 6<_m1+m2<_25.

Abstract: The present invention relates to a beam-guiding and/or frequency-converting optical system as well as to a method of manufacturing same, wherein a beam-emitting optoelectronic component (1), which comprises at least one beam-emerging surface (2) for the emergence of a beam, is provided and connected to a surface (5) of a base (4) in such a manner that the emerging beam extends approximately in parallel with the surface (5) of said base (4). Once the optoelectronic component (1) has been connected to said base (4), a wave-guiding stratified system (4) is deposited and structured and/or locally modified on the surface (5) of said base (4) for guidance and/or frequency conversion of the beam in such a way that a gap-free contact is created between said beam exit surface (2) and said stratified (6) and a pre-determinable beam guidance is achieved.

Abstract: Apparatus for dosing gaseous and/or vaporous substances An apparatus for dosing gaseous and/or vaporous substances, in particular for generating varying scents, includes a multitude of packaged storage containers (1) from which different gases and/or vapors are driven out by a carrier medium. On their inlet sides, the storage containers are connected to a common carrier medium manifold (13) via a shut-off device (4) assigned to each storage container that can be actuated, and on their outlet sides to a joint homogenization chamber (8). Both the carrier medium manifold and the homogenization chamber are connected to a carrier medium source using a regulating valve (5, 9). Check valves (6, 7) are integrated in the gas passages to the storage container and from the storage container to the homogenization chamber. A dosing apparatus designed based on this principle is characterized by low space requirements and materially separate volume flows that can be exactly timed and dosed.