Abstract:
The present invention relates to a compound or a pharmaceutically acceptable salt thereof having a chemical structure comprising: (A) at least one motif specifically binding to cell membranes of neoplastic cells; (B) at least one chelator moiety of radiometals; and (C) at least one dye moiety; wherein said compound has a molecular weight of not more than 5 kDa. Further, the invention refers to a method for producing such compound and to the in vivo and in vitro uses thereof.
Abstract:
A monolithic substrate of glass or glass ceramics and methods for manufacturing are provided, where the substrate has a lightweight structure. The lightweight structure includes recesses that are delimited by webs, such webs forming tetragonal or four-corner-shaped pockets. Due to the lightweight structure, the weight of the substrate can be significantly reduced, and at the same time a high rigidity can be ensured. The substrate can be used as a mirror support or a mirror and can be employed terrestrially and/or extra-terrestrially.
Abstract:
A substrate and methods of making is provided. The substrate is made of glass or glass ceramic and finds use as a mirror support having a light-weight structure. The substrate includes recesses and is reinforced with covers in the region of bearing points for rigidification.
Abstract:
A method is for producing and applying an antiscatter grid or collimator to an x-ray or gamma detector having matricially arranged detector elements which form a detector surface with detection regions sensitive to x-radiation and/or gamma radiation and less sensitive intermediate regions. In the method, a basic structure is firstly produced for the antiscatter grid or collimator by way of a rapid prototyping technique, through which transmission channels and intermediate walls of the antiscatter grid or collimator are formed which have at least in a first direction a center-to-center spacing which is equal to or an integral multiple of a center-to-center spacing of the sensitive detection regions of the detector. The intermediate walls are coated with a material which strongly absorbs x-radiation and/or gamma radiation in order to finish the antiscatter grid or collimator. Subsequently, the antiscatter grid or collimator is applied to the detector surface and connected to the detector surface in such a way that at least the intermediate walls running perpendicular to the first direction, or their coating, are situated over the less sensitive intermediate regions of the detector surface. A detector having an antiscatter grid or collimator in which no moiré interference occurs can thus be realized in a simple way.
Abstract:
A process for making a polyolefin composition having improved adhesive and/or coating compatibility involving: (a) providing a polyolefin; (b) providing from 0.01 to 10% by weight, based on the weight of the polyolefin, of a migratable amphiphile; (c) providing from 0.01 to 1000 ppm, based on the weight of the polyolefin, of a transition metal selected from the group consisting of titanium, tin, and mixtures thereof; and (d) combining (a)-(c) to form the polyolefin composition.
Abstract:
A system for generating hydrogen-rich gas has a reformer for catalytic water vapor reforming of a water vapor/fuel mixture by an input supply of thermal energy, and a CO oxidation stage for removing carbon monoxide from the hydrogen-rich gas while emitting heat, with the reformer and the CO oxidation stage being thermally coupled. An oxygen quantity fed to the CO oxidation stage is adjusted as a function of the gas temperature in or at the output of the reformer/oxidation stage. This can take place by an automatic (feedback) control, a combination of open loop control and automatic control or by an adaptive characteristic diagram.
Abstract:
Polyolefine-based mouldings and foils contain internal bonding additives which are enriched by migration at the plastic surface and which have their molecular structure bonding substituents of higher polarity on an oleophilic hydrocarbon radical. At least one part of these internal additives is hardened via its hydrocarbon radicals in the area of the plastic surface and prevented from further migrating, and so permanent adhesive bondings and/or coatings of the polyolefine surface may be obtained without additional preliminary treatments. Also disclosed is a process for furnishing solid polyolefine surfaces with such adherence-improving, immobilised additive (mixtures), and other auxiliary agents used for that purpose.
Abstract:
Process for preparing formic acid by hydrogenation of carbon dioxide in the presence of a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table, a tertiary amine and a polar solvent at a pressure of from 0.2 to 30 MPa abs and a temperature of from 20 to 200° C. to form two liquid phases, separation of the two liquid phases, wherein the liquid phase (B) enriched with the tertiary amine is recirculated to the hydrogenation reactor and the formic acid/amine adduct from the liquid phase (A) enriched with the formic acid/amine adduct and the polar solvent is thermally dissociated into free formic acid and free tertiary amine in a distillation unit and the tertiary amine liberated in the dissociation and the polar solvent are recirculated to the hydrogenation reactor.
Abstract:
A description is given of an aqueous vinyl ester copolymer dispersion stabilized with a combination of at least one protective colloid and of at least one emulsifier, said dispersion having a viscosity of less than 8000 mPa*s, a weight average dw of the particle sizes of 0.5 to 10 μm, and a ratio of weight average to number average of the particle sizes, dw/dn, of at least 2.5, and the polymer possessing a glass transition temperature of between −30 and +15° C. The dispersion can be used as an adhesive for nozzle application processes.
Abstract:
A method is for producing an antiscatter grid or collimator for a radiation type, which is formed from a base body of predeterminable geometry having transmission channels for primary radiation of the radiation type which extend between two opposite surfaces of the base body. In the method, the base body is constructed by use of a rapid prototyping technique by layer-wise solidification of a structural material, which is substantially transmissive to the radiation type, under the action of radiation. Inner surfaces of the base body in the transmission channels are coated with a material, which strongly absorbs the radiation type, up to a layer thickness which suffices to virtually completely absorb incident secondary radiation of the radiation type. The opposite surfaces of the base body are not coated, or are aftertreated in such a way that they do not bear a coating or bear a coating of greatly reduced layer thickness made from the material strongly absorbing the radiation type. The method permits the simple production of an antiscatter grid or collimator with high primary beam transparency.