Abstract: The present invention discloses a lighting system assembled from lighting fixtures, including electrical connection sockets, electric connectors, a connecting structure, and plug connectors. A plurality of single lighting fixtures are assembled and mounted on the connecting structure by fitting the electrical connection sockets to the connecting structure so that the lighting fixtures can be easily assembled on the ceiling without complicated wiring.

Abstract: A flow splitting device for gas reverse circulation drilling, including: an upper joint for connecting with a double-wall drill pipe; an inner tube which is arranged in the upper joint and defines a first passageway in communication with an inner chamber of the double-wall drill pipe, a second passageway in communication with an annular space in the double-wall drill pipe formed between the inner tube and the upper joint; a lower joint, having an upper end fixedly connected with the upper joint and a lower end for connecting with a drill tool; and a flow guiding member provided between the upper joint and the lower joint. A flexible sealing mechanism is provided outside the upper joint. The flexible sealing mechanism extends radially outward relative to the upper joint and the lower joint to form a sealing contact with a wellbore wall.

Abstract: The present invention claims a ceiling-mounted lighting system, comprising a lighting fixture installation area, a ceiling lighting fixture, first elastic fasteners, and second elastic fasteners. A mounting hole is provided in the lighting fixture installation area. The ceiling lighting fixture is installed in the mounting hole through the first elastic fasteners and the second elastic fasteners to facilitate removal and installation of the ceiling lighting fixture. After installation, a back edge of a lighting portion of the ceiling lighting fixture is attached to the lighting fixture installation area, which can achieve a shockproof effect. As the ceiling lighting fixture can be suspended at the 6 o'clock position on the mounting hole, it is convenient to connect lighting fixture wires to mains cables above the ceiling.

Abstract: In order to perform a semantic search based on a graph database, sets of nodes are selected from a plurality of nodes in a graph database. A set of nodes semantically matches a keyword in a natural language query. At least one target node is identified in the sets of nodes. A path is selected from candidate paths based on similarities between the candidate paths and a plurality of paths in the graph database. A graph query for retrieving information from the graph database is generated based on the selected path and the query target.

Abstract: An approach is provided for searching multilingual documents. A first classification is determined that includes a first document and other document(s) by minimizing a first distance between a first numerical fixed length vector for the first document and other numerical fixed length vector(s) for other document(s). Based on a query and a natural language detected in the query, a second document is selected. A second stream modeling the second document is encoded as a second numerical fixed length vector. Based on a distance between the first and second numerical fixed length vectors being less than a threshold, the first classification is identified as including the second document. Documents in the first classification are ranked and presented as having content matching the second document's content. At least one of the ranked documents is expressed in a natural language different from the natural language of the second document.

Abstract: An approach is provided for searching multilingual documents. A first classification is determined that includes a first document and other document(s) by minimizing a first distance between a first numerical fixed length vector for the first document and other numerical fixed length vector(s) for other document(s). Based on a query and a natural language detected in the query, a second document is selected. A second stream modeling the second document is encoded as a second numerical fixed length vector. Based on a distance between the first and second numerical fixed length vectors being less than a threshold, the first classification is identified as including the second document. Documents in the first classification are ranked and presented as having content matching the second document's content. At least one of the ranked documents is expressed in a natural language different from the natural language of the second document.

Abstract: An approach is provided for searching multilingual documents. Structure components are extracted from multilingual documents. Based on the extracted components, the documents are grouped into classifications including respective sets of documents expressed in different respective natural languages. A natural language in a query is detected. One of the documents is selected based on the document having content indicated by the query and the natural language of the document matching the detected natural language. Structure components of the selected document are extracted. Based on the extracted structure components of the selected document, one of the classifications is identified as including the selected document. Other document(s) in the classification are identified and presented as having content that matches the content of the selected document. The natural language(s) of the other document(s) are each different from the natural language of the selected document.

Abstract: An approach is provided for searching multilingual documents. Structure components are extracted from multilingual documents. Based on the extracted components, the documents are grouped into classifications including respective sets of documents expressed in different respective natural languages. A natural language in a query is detected. One of the documents is selected based on the document having content indicated by the query and the natural language of the document matching the detected natural language. Structure components of the selected document are extracted. Based on the extracted structure components of the selected document, one of the classifications is identified as including the selected document. Other document(s) in the classification are identified and presented as having content that matches the content of the selected document. The natural language(s) of the other document(s) are each different from the natural language of the selected document.

Abstract: The disclosure discloses a service providing client, a wireless terminal and a method for implementing binding. The service providing client comprises a transmission module, which is configured to transmit authentication information to the wireless terminal (701); a judgment module, which is configured to judge whether the wireless terminal is a legal binding object according to a response of the wireless terminal for the authentication information (702); and a processing module, which is configured to provide service to the wireless terminal (703) if the wireless terminal is a legal binding object, otherwise, restrict the service provided to the wireless terminal.

Abstract: The disclosure discloses a service providing client, a wireless terminal and a method for implementing binding. The service providing client comprises a transmission module, which is configured to transmit authentication information to the wireless terminal (701); a judgment module, which is configured to judge whether the wireless terminal is a legal binding object according to a response of the wireless terminal for the authentication information (702); and a processing module, which is configured to provide service to the wireless terminal (703) if the wireless terminal is a legal binding object, otherwise, restrict the service provided to the wireless terminal.

Abstract: The disclosure discloses a service providing client, a wireless terminal and a method for implementing binding. The service providing client comprises a transmission module, which is configured to transmit authentication information to the wireless terminal (701); a judgment module, which is configured to judge whether the wireless terminal is a legal binding object according to a response of the wireless terminal for the authentication information (702); and a processing module, which is configured to provide service to the wireless terminal (703) if the wireless terminal is a legal binding object, otherwise, restrict the service provided to the wireless terminal.

Abstract: The present invention concerns a process for recovering lower carbon olefins from MTO or DTO product gas. Said process primarily comprises the product gas compressing, pre-deethanizing, demethanizing and ethylene recovering apparatus, depropanizing column, ethylene rectification column, propylene rectification column and the like. In addition, the process of the present invention needs no independent ethylene cooling system, and the ethylene recovery rate may achieve 99.5%.

Abstract: The present invention concerns a process for recovering lower carbon olefins from MTO or DTO product gas. Said process primarily comprises the product gas compressing, pre-deethanizing, demethanizing and ethylene recovering apparatus, depropanizing column, ethylene rectification column, propylene rectification column and the like. In addition, the process of the present invention needs no independent ethylene cooling system, and the ethylene recovery rate may achieve 99.5%.