Abstract: A technique for providing search results may include determining a first entity type, a second entity type, and a relationship type based on a compositional query. The technique may also include identifying nodes of a knowledge graph corresponding to entity references of the first entity type and entity references of the second entity type. The technique may also include determining from the knowledge graph an attribute value corresponding to the relationship type for each entity reference of the first entity type and for each entity reference of the second entity type. The technique may also include comparing the attribute value of each entity reference of the first entity type with the attribute value of each entity reference of the second entity type. The technique may also include determining one or more resultant entity references from the entity references of the first entity type based on the comparing.

Abstract: Embodiments of the present disclosure relate to automated validation of medical data. Some embodiments of the present disclosure provide a method for medical data validation. The method comprises obtaining target medical data generated in a medical test and obtaining a machine learning model for validating medical data. The machine learning model represents an association between the medical data and validation results, the validation results indicating information about predetermined actions to be performed on the medical data. The method further comprises determining a target validation result for the target medical data by applying the target medical data to the machine learning model, the target validation result indicating information about a target action selected from the predetermined actions to be performed on the target medical data. Through the solution, it is possible to achieve automated medical data validation with high accuracy and efficiency as well as reduced manual efforts.

Abstract: A fastening assembly is provided which comprises a compensating element and an isolating member. The compensating element comprises a body having a receiving hole and a retaining flange provided at a first end of the body and having a retaining hole. The isolating member is made of metal and comprises a sleeve portion defining a channel. A fastening element inserted from a second end of the body of the compensating element can enter the channel and move in the channel in one or more lateral directions. The sleeve portion is inserted into the retaining hole and cooperates with the retaining hole to retain the isolating member in the compensating element. The fastening element fastens the compensating element to the second component via the sleeve portion, and the sleeve portion is configured to withstand an axial fastening force exerted by the fastening element on the retaining flange of the compensating element.

Abstract: The present disclosure provides a compensation nut assembly comprising a first nut having a limiting tab, a second nut and a limiting member connected to the second nut and comprising a first blocking arm and a second blocking arm. When the assembly is in a pre-assembled state, the first and second blocking arms retain the limiting tab therebetween in a circumferential direction. When a certain screwing force is applied to the first nut in the pre-assembled state in a first rotation direction, the first and second blocking arms are at least partially deflected by the limiting tab to allow the first nut to rotate out of the pre-assembled state. When a certain screwing force is applied to the first nut in the pre-assembled state in a second rotation direction, the first and second blocking arms restrict the first nut from rotating out of the pre-assembled state.

Abstract: A nut fastener assembly includes a nut assembly and a fastening clip. Opposite sides of the bottom of the nut assembly are provided with a pair of protrusions. The fastening clip includes a pair of lugs arranged on opposite ends of the fastening clip and extending towards the nut assembly, and a pair of receiving channels configured to respectively penetrate the pair of lugs. At least one of the pair of lugs is an adjustable lug including a blocking part and an elastic part. The distal end of the elastic part is movable relative to the distal end of the blocking part. The corresponding protrusion in the pair of protrusions can enter the corresponding receiving channel through a space between the distal end of the blocking part and the distal end of the elastic part to be held in the receiving channel.

Abstract: A fiber-reinforced prestressed reinforced concrete sleeper is integrally cast and includes a sleeper body and two rail bearing regions. A rail clamping base is arranged on a surface of the each rail bearing region. The two rail bearing regions are located under rails on both sides of the sleeper and the two rail bearing regions are located above the sleeper body. A reinforcing fiber is mixed into the two rail bearing regions only, and a reinforcing rib is arranged in the sleeper body. The reinforcing fiber is concentrated in a main stress region under the surface of the rail bearing regions. The reinforcing fiber arranged in a region with a large stress is more than the reinforcing fiber arranged in a region with a small stress.

Abstract: An anchoring part, comprising: an anchoring rod that has a plurality of side walls, and a plug hole extending along a height direction of the anchoring rod; a head portion that surrounds the anchoring rod and is disposed at an upper end of the anchoring rod; at least one elastic fin that is formed by extending outwardly obliquely from at least one of the sidewalls; wherein the anchoring rod further comprises a plurality of corner portions connecting adjacent sidewalls, the plurality of corner portions being provided with locking notches at the positions adjacent to a lower surface of the head portion, respectively.

Abstract: A fiber-reinforced prestressed reinforced concrete sleeper is integrally cast and includes a sleeper body and two rail bearing regions. A rail clamping base is arranged on a surface of the each rail bearing region. The two rail bearing regions are located under rails on both sides of the sleeper and the two rail bearing regions are located above the sleeper body. A reinforcing fiber is mixed into the two rail bearing regions only, and a reinforcing rib is arranged in the sleeper body. The reinforcing fiber is concentrated in a main stress region under the surface of the rail bearing regions. The reinforcing fiber arranged in a region with a large stress is more than the reinforcing fiber arranged in a region with a small stress.

Abstract: A retaining clip includes a nose. The retaining clip includes opposing beams extending from the nose. The opposing beams have an oblong shape. The opposing beams form compression regions. Retaining legs extend from the compression regions. The retaining legs are configured to be spaced apart from each other.

Abstract: An anchoring part, comprising: an anchoring rod that has a plurality of side walls, and a plug hole extending along a height direction of the anchoring rod; a head portion that surrounds the anchoring rod and is disposed at an upper end of the anchoring rod; at least one elastic fin that is formed by extending outwardly obliquely from at least one of the sidewalls; wherein the anchoring rod further comprises a plurality of corner portions connecting adjacent sidewalls, the plurality of corner portions being provided with locking notches at the positions adjacent to a lower surface of the head portion, respectively.

Abstract: A ballastless track system comprises a base; a track slab arranged above the base; a poured-field layer arranged between the base and the track slab, the poured-field layer being formed by filling self-compacting concrete, emulsified asphalt cement mortar or resin mortar, and the inside of the poured-field layer being of a steel bar structure; a connecting piece, the first end of the connecting piece extending into the track slab, and the second end of the connecting piece extending into the poured-field layer; and two rows of rail-seat arranged on the track slab in parallel; and rails arranged on the rail-seat. The ballastless track system is high in reliability, good in durability, and easy in construction and maintenance.

Abstract: Provided in the disclosure is a pre-stressed concrete track slab of slab-type ballast-less track, which includes a slab body (1), on which fastening embedded casings (4) are arranged. At least one row of longitudinal common steel bars (11) and at least one row of transverse common steel bars (12) are arranged in the slab body (1) along a length direction and a width direction. The longitudinal common steel bars (11) are insulated from the transverse common steel bars (12). At least one row of longitudinal pre-stressed steel bars (7) and at least one row of transverse pre-stressed steel bars (6) are fastened in the slab body (1) along the length direction and the width direction through anchor backing plates and fastener devices (8). In the pre-stress directions of the longitudinal pre-stressed steel bars (7) and the transverse pre-stressed steel bars (6), it is post-tensioned in both directions or it is pre-tensioned in one direction and post-tensioned in the other direction.

Abstract: A ballastless track system comprises a base; a track slab arranged above the base; a poured-field layer arranged between the base and the track slab, the poured-field layer being formed by filling self-compacting concrete, emulsified asphalt cement mortar or resin mortar, and the inside of the poured-field layer being of a steel bar structure; a connecting piece, the first end of the connecting piece extending into the track slab, and the second end of the connecting piece extending into the poured-field layer; and two rows of rail-seat arranged on the track slab in parallel; and rails arranged on the rail-seat. The ballastless track system is high in reliability, good in durability, and easy in construction and maintenance.

Abstract: Provided in the disclosure is a pre-stressed concrete track slab of slab-type ballast-less track, which includes a slab body (1), on which fastening embedded casings (4) are arranged. At least one row of longitudinal common steel bars (11) and at least one row of transverse common steel bars (12) are arranged in the slab body (1) along a length direction and a width direction. The longitudinal common steel bars (11) are insulated from the transverse common steel bars (12). At least one row of longitudinal pre-stressed steel bars (7) and at least one row of transverse pre-stressed steel bars (6) are fastened in the slab body (1) along the length direction and the width direction through anchor backing plates and fastener devices (8). In the pre-stress directions of the longitudinal pre-stressed steel bars (7) and the transverse pre-stressed steel bars (6), it is post-tensioned in both directions or it is pre-tensioned in one direction and post-tensioned in the other direction.

Abstract: The present invention relates to genetically engineered micro-organisms for the combined production of 1,3-propanediol (PDO), 2,3-butanediol (BDO), and polyhydroxypropionic acid (PHP) by fermentation. In particular, the invention relates to a genetically engineered micro-organism suitable for combined production of PDO, BDO and PHP by fermentation, characterized in that: compared with corresponding wild-type starting micro-organism, the D-lactate dehydrogenase gene in the genetically engineered micro-organism is deleted or functionally inactivated, and the genetically engineered micro-organism comprises a heterogenous polynucleotide encoding the Coenzyme A-dependent Aldehyde dehydrogenase and a heterogenous polynucleotide encoding the Polyhydroxyalkanoate synthase. Methods for the construction of such micro-organisms, and methods for combined production of PDO, BDO and PHP by fermentation of a genetically engineered bacterium are also taught.

Abstract: The present invention relates to genetically engineered micro-organisms for the combined production of 1,3-propanediol (PDO), 2,3-butanediol (BDO), and polyhydroxypropionic acid (PHP) by fermentation. In particular, the invention relates to a genetically engineered micro-organism suitable for combined production of PDO, BDO and PHP by fermentation, characterized in that: compared with corresponding wild-type starting micro-organism, the D-lactate dehydrogenase gene in the genetically engineered micro-organism is deleted or functionally inactivated, and the genetically engineered micro-organism comprises a heterogenous polynucleotide encoding the Coenzyme A-dependent Aldehyde dehydrogenase and a heterogenous polynucleotide encoding the Polyhydroxyalkanoate synthase. Methods for the construction of such micro-organisms, and methods for combined production of PDO, BDO and PHP by fermentation of a genetically engineered bacterium are also taught.

Abstract: The present invention relates to genetically engineered micro-organisms for the combined production of 1,3-propanediol (PDO), 2,3-butanediol (BDO), and polyhydroxypropionic acid (PHP) by fermentation. In particular, the invention relates to a genetically engineered micro-organism suitable for combined production of PDO, BDO and PHP by fermentation, characterized in that: compared with corresponding wild-type starting micro-organism, the D-lactate dehydrogenase gene in the genetically engineered micro-organism is deleted or functionally inactivated, and the genetically engineered micro-organism comprises a heterogenous polynucleotide encoding the Coenzyme A-dependent Aldehyde dehydrogenase and a heterogenous polynucleotide encoding the Polyhydroxyalkanoate synthase. Methods for the construction of such micro-organisms, and methods for combined production of PDO, BDO and PHP by fermentation of a genetically engineered bacterium are also taught.

Abstract: The present invention relates to methods and genetically engineered micro-organisms for the combined production of PDO, BDO, and PHP by fermentation. The micro-organism is characterized in that its D-lactate dehydrogenase gene has been deleted or functionally inactivated, and it comprises heterogenous polynucleotides encoding the Coenzyme A-dependent Aldehyde dehydrogenase and the Polyhydroxyalkanoate synthase.

Abstract: The invention discloses a search method of 3D model and device thereof. As stated in the invention, it transforms the query model and the object model into the set of 2D-slide polygons respectively; calculates the similarity between each 2D slice in the query model and the object mode by accumulating the similarities of all couples of 2D slices; and determines the search result according to the said total similarity. In accordance with the invention, it could be easily realize the search function of 3D model, and it is not sensitive to geometric noise, thus there's no need to look for the characteristic correspondence between models.