Abstract: A bearing unit having a rolling bearing providing a first ring element and a second ring element, and a plurality of rolling elements interposed in-between the first and the second ring elements such that the first and the second ring elements rotate relative each other in relation to a rotational axle. Further, the bearing unit including at least one support element that is at least partly embedding one of the first or the second ring element. The at least one support element provides an inner open geometry. The inner open geometry provides at least one structural elongated element that is designed for accommodating a load in the support element. The invention also provides a wind turbine main shaft arrangement having a bearing unit.

Abstract: A large size bearing unit provides a rolling bearing having a first ring element and a second ring element and a plurality of rolling elements interposed radially in-between the first and the second ring elements. The first and the second ring elements rotate relative each other in relation to a rotational axle. The first ring element provides at least two separate ring elements located adjacently in a row along the rotational axle. At least one ring-formed support element is at least partly embedding the at least two separate ring elements and includes a seat surface onto which the at least two separate ring elements are located. The at least one ring-formed support element has two axially opposite surfaces extending radially from the seat surface to partly enclose the at least two separate ring elements. At least one of the axially opposite side surfaces is located on a separate ring-formed element.

Abstract: A large size bearing unit provides a rolling bearing having a first ring element and a second ring element and a plurality of rolling elements interposed radially in-between the first and the second ring elements. The first and the second ring elements rotate relative each other in relation to a rotational axle. The first ring element provides at least two separate ring elements located adjacently in a row along the rotational axle. At least one ring-formed support element is at least partly embedding the at least two separate ring elements and includes a seat surface onto which the at least two separate ring elements are located. The at least one ring-formed support element has two axially opposite surfaces extending radially from the seat surface to partly enclose the at least two separate ring elements. At least one of the axially opposite side surfaces is located on a separate ring-formed element.

Abstract: A bearing unit having a rolling bearing providing a first ring element and a second ring element, and a plurality of rolling elements interposed in-between the first and the second ring elements such that the first and the second ring elements rotate relative each other in relation to a rotational axle. Further, the bearing unit including at least one support element that is at least partly embedding one of the first or the second ring element. The at least one support element provides an inner open geometry. The inner open geometry provides at least one structural elongated element that is designed for accommodating a load in the support element. The invention also provides a wind turbine main shaft arrangement having a bearing unit.

Abstract: A bearing having grease lubrication includes a first ring and a second ring. A plurality of screw holes axially extend through the first ring. A first axial end of the first ring is affixed to a housing by a plurality of screws extending from the housing into the respective screw holes. A first bore is defined in the first ring adjacent to a second axial end of the first ring. The first bore intersects and fluidly communicates with one of the screw holes such that grease is dischargeable therethrough.

Abstract: A method comprises forming a reaction mixture comprising a terephthalate polyester, a glycol comprising 2 to 5 carbons, and an amidine organocatalyst; and heating the reaction mixture at a temperature of about 120° C. or more to depolymerize the terephthalate polyester, thereby forming a terephthalate reaction product comprising a monomeric dihydroxy terephthalate diester; wherein the terephthalate reaction product contains terephthalate oligomers in an amount less than the amount of terephthalate oligomers that would result from i) substituting the amidine organocatalyst with an equimolar amount of a guanidine catalyst and ii) depolymerizing the terephthalate polyester under otherwise identical reaction conditions.

Abstract: A bearing having grease lubrication includes a first ring and a second ring. A plurality of screw holes axially extend through the first ring. A first axial end of the first ring is affixed to a housing by a plurality of screws extending from the housing into the respective screw holes. A first bore is defined in the first ring adjacent to a second axial end of the first ring. The first bore intersects and fluidly communicates with one of the screw holes such that grease is dischargeable therethrough.

Abstract: A salt catalyst comprises an ionic complex of i) a nitrogen base comprising one or more guanidine and/or amidine functional groups, and ii) an oxoacid comprising one or more active acid groups, the active acid groups independently comprising a carbonyl group (C?O), sulfoxide group (S?O), and/or a phosphonyl group (P?O) bonded to one or more active hydroxy groups; wherein a ratio of moles of the active hydroxy groups to moles of the guanidine and/or amidine functional groups is greater than 0 and less than 2.0. The salt catalysts are capable of catalyzing ring opening polymerization of cyclic carbonyl compounds.

Abstract: A method and apparatus for capturing annotations about database material in a way that allows queries with conditions or predicates on both the database material and the annotations. Database material may be text, computer programs, graphics, audio, spreadsheets, or any other material which may be stored and indexed. Database material may be in one or multiple sources, and annotations may be stored together with the original material or in a separate store. Annotations can be used to capture information such as additional facts about the database material, the opinions and judgments of experts about the database material, and/or links to other related material. Annotations may be captured in a structured form to enhance queryability and semantic interpretation.

Abstract: A method comprises forming a reaction mixture comprising a terephthalate polyester, a glycol comprising 2 to 5 carbons, and an amidine organocatalyst; and heating the reaction mixture at a temperature of about 120° C. or more to depolymerize the terephthalate polyester, thereby forming a terephthalate reaction product comprising a monomeric dihydroxy terephthalate diester; wherein the terephthalate reaction product contains terephthalate oligomers in an amount less than the amount of terephthalate oligomers that would result from i) substituting the amidine organocatalyst with an equimolar amount of a guanidine catalyst and ii) depolymerizing the terephthalate polyester under otherwise identical reaction conditions.

Abstract: A salt catalyst comprises an ionic complex of i) a nitrogen base comprising one or more guanidine and/or amidine functional groups, and ii) an oxoacid comprising one or more active acid groups, the active acid groups independently comprising a carbonyl group (C?O), sulfoxide group (S?O), and/or a phosphonyl group (P?O) bonded to one or more active hydroxy groups; wherein a ratio of moles of the active hydroxy groups to moles of the guanidine and/or amidine functional groups is greater than 0 and less than 2.0. The salt catalysts are capable of catalyzing ring opening polymerization of cyclic carbonyl compounds.

Abstract: The virtual screening of a database of molecules is based on explicit three-dimensional molecular superpositions. The torsional flexibility of the database molecules is taken fully into account, and an arbitrary number of conformation-dependent molecular features may be considered. A fragmentation-reassembly approach is utilized, which allows for an efficient sampling of the conformational space. A fast clique-based pattern-matching algorithm generates alignments of pairs of adjacent molecular fragments on the (rigid) query molecule that are subsequently reassembled to complete database molecules. Using conventional molecular features (hydrogen bond donors and acceptors, charges, and hydrophobic groups), it is possible to rapidly produce accurate alignments of medium-sized drug-like molecules. Examples with a test database containing a diverse set of 1780 drug-like molecules (including all conformers) show that average query processing times of the order of 0.

Abstract: A method and apparatus for capturing annotations about database material in a way that allows queries with conditions or predicates on both the database material and the annotations. Database material may be text, computer programs, graphics, audio, spreadsheets, or any other material which may be stored and indexed. Database material may be in one or multiple sources, and annotations may be stored together with the original material or in a separate store. Annotations can be used to capture information such as additional facts about the database material, the opinions and judgments of experts about the database material, and/or links to other related material. Annotations may be captured in a structured form to enhance queryability and semantic interpretation.

Abstract: The virtual screening of a database of molecules is based on explicit three-dimensional molecular superpositions. The torsional flexibility of the database molecules is taken fully into account, and an arbitrary number of conformation-dependent molecular features may be considered. A fragmentation-reassembly approach is utilized, which allows for an efficient sampling of the conformational space. A fast clique-based pattern-matching algorithm generates alignments of pairs of adjacent molecular fragments on the (rigid) query molecule that are subsequently reassembled to complete database molecules. Using conventional molecular features (hydrogen bond donors and acceptors, charges, and hydrophobic groups), it is possible to rapidly produce accurate alignments of medium-sized drug-like molecules. Examples with a test database containing a diverse set of 1780 drug-like molecules (including all conformers) show that average query processing times of the order of 0.

Abstract: A method and apparatus for capturing annotations about database material in a way that allows queries with conditions or predicates on both the database material and the annotations. Database material may be text, computer programs, graphics, audio, spreadsheets, or any other material which may be stored and indexed. Database material may be in one or multiple sources, and annotations may be stored together with the original material or in a separate store. Annotations can be used to capture information such as additional facts about the database material, the opinions and judgments of experts about the database material, and/or links to other related material. Annotations may be captured in a structured form to enhance queryability and semantic interpretation.

Abstract: A method and apparatus for capturing annotations about database material in a way that allows queries with conditions or predicates on both the database material and the annotations. Database material may be text, computer programs, graphics, audio, spreadsheets, or any other material which may be stored and indexed. Database material may be in one or multiple sources, and annotations may be stored together with the original material or in a separate store. Annotations can be used to capture information such as additional facts about the database material, the opinions and judgments of experts about the database material, and/or links to other related material. Annotations may be captured in a structured form to enhance queryability and semantic interpretation.

Abstract: An annular ring used as either the outer race or the bearing race in a roller includes at least one annular recess in which is disposed an annular reinforcement body. The reinforcement body subjects the region of the annular ring radially inside the reinforcement body to mechanical stresses. The side of the reinforcement body oriented toward this region is materially joined or bonded to the ring. The annular reinforcement body preferably possesses an internal radius that is smaller than the internal radius of the recess and the reinforcement body press-fitted into the recess. According to one embodiment, the reinforcement body is poured in liquid form into the recess. The shrinkage of the reinforcement body that occurs during the cooling phase after solidification produces stresses as well.

Abstract: The present invention provides a safety lock actuatable with a flat key carrying a code. The code is digitally generated by a laser beam and is sensed by detector laser beam upon or after the introduction of the key into the lock. The digital coding is produced by means of burning discrete depressions into a suitable layer on the key with a sufficiently strong laser beam and the sensing of the coding is done by means of a weaker laser beam.

Abstract: In order to improve the weldability of aluminum strip or sheet by spot welding and to promote the use of these materials, in particular in the bodywork of automobiles, the strip or sheet, after being hot and cold rolled to an intermediate thickness of 1.5 to 2.5 times the final gauge, is etched in an alkaline solution, then cold rolled to final gauge using cold rolling lubricant and finally, if desired, heat treated.

Abstract: In order to improve the weldability of aluminum strip or sheet by spot welding and to promote the use of these materials, in particular in the bodywork of automobiles, the strip or sheet, after being hot and cold rolled to an intermediate thickness of 1.5 to 2.5 times the final gauge, is etched in an alkaline solution, then cold rolled to final gauge using cold rolling lubricant and finally, if desired, heat treated.