Abstract: A shoulder-angle-adjustable friction stir welding head suitable for a fillet joint includes a stirring head body. A front end of the stirring head body is mounted with a movable shoulder, a stirring pin channel is arranged on the movable shoulder, and the stirring pin channel may allow a stirring pin of the stirring head body to pass through. The present disclosure can respond to welding tasks of the fillet joint of different angles and enlarges an application scope of the friction stir welding head in a manner that the front end of the stirring head body is mounted with the movable shoulder, the stirring pin channel is arranged on the movable shoulder, the stirring pin channel is used for allowing the stirring pin of the stirring head body to pass through, and the angle of the movable shoulder is adjusted.

Abstract: The embodiment of the present disclosure discloses a method, an electronic device, and a storage medium for a ship route optimization. The method for the ship route optimization considers a dynamic feature of a multi-functional emergency rescue ship and an interference effect caused by an airflow, uses a movement model with kinematics non-holonomic constraints, such as a ship total cost assessment function to simulate the movement of the ship, and based on a sparrow search algorithm, learns how to apply the algorithm to a route plan of the emergency rescue ship. The method can improve the ship route optimization algorithm, improve an accuracy and practical applicability of a calculated plan. The method can effectively and accurately locate obstacles and hidden reefs, and consider effects of an airflow and a non-holonomic constraint effect, so as to make the route planning of the ship more efficient and intelligent.

Abstract: An airflow sensing seat comprises a seat body (1), an airbag (2), a sensing assembly (3), and a micro control unit (4). The airbag (2) is provided in the seat body (1). A deformable support structure (21) is provided in the airbag (2). The support structure (21) is used to maintain an appropriate amount of gas in the airbag (2). A transmission mechanism (5) is provided between the airbag (2) and the sensing assembly (3). The transmission mechanism (5) is used to transmit gas disturbance in the airbag (2) to the sensing assembly (3). The sensing assembly (3) is used to generate a corresponding analog electrical signal according to the gas disturbance. The sensing assembly (3) is electrically connected to the micro control unit (4). The sensing assembly (3) transmits the analog electrical signal to the micro control unit (4). The micro control unit (4) is used to perform analysis and computation on the analog electrical signal so as to acquire a biological signal of a user.

Abstract: A digital and informationized fully-automatic aluminum thermal-spraying production line includes: an automatic feeding system including first transfer mechanisms and first carrying conveying mechanisms; a laser cleaning system including a laser cleaning tank, laser cleaning nozzles and cleaning conveying mechanisms; a first transfer system including second carrying conveying mechanisms and second transfer mechanisms; an aluminum thermal-spraying system including traveling mechanisms, turning mechanisms and an aluminum spraying mechanism, the traveling mechanisms being configured to convey workpieces on the second carrying conveying mechanisms onto the turning mechanisms one-by-one, the turning mechanisms being configured to turn the workpieces by a preset angle, and the aluminum spraying mechanism being configured to perform aluminum arc-spraying on the workpieces.

Abstract: Disclosed are a bismuth telluride-based thermoelectric nanocomposite with dispersed nano-sized silicon carbide based on the recycling of bismuth telluride processing scraps, wherein the method comprises: (1) Under a protective atmosphere, mixing bismuth telluride processing scraps and nano-sized silicon carbide, and then performing ball milling; (2) Subjecting the ball-milled powders to spark plasma sintering to obtain a bismuth telluride-based thermoelectric nanocomposite with dispersed nano-sized silicon carbide. The method can significantly improve the utilization rate of bismuth telluride processing scraps and avoid the waste of precious materials. Moreover, the process has the characteristics of simple and easy operation, and low energy consumption. The obtained bismuth telluride-based thermoelectric nanocomposite with dispersed nano-sized silicon carbide has high thermoelectric performance, which can be widely used in the fields of thermoelectric power generation and refrigeration.

Abstract: A method for recognizing hand gestures when the hand is held in front of the user's upper body. The method detects dominant features associated with the upper body, including features on the face (eyes and mouth etc.) and the shoulder extremes. Geometrical relations among these features are used to judge whether the face/head has turned to the side relative to the shoulder. If not, a face-shoulder coordinate system is established using these face-shoulder features, and the hand images are transformed into this new coordinate system. This in effect defines hand gestures relative to the user's face and shoulder, thus significantly reducing the dimensions of the feature space for hand gestures. This face-shoulder coordinate transform can be combined either with traditional appearance-based hand gesture recognition methods, or with a conventional or hybrid deep neural network for RGB or RGB-D images.

Abstract: A method for recognizing hand gestures when the hand is held in front of the user's upper body. The method detects dominant features associated with the upper body, including features on the face (eyes and mouth etc.) and the shoulder extremes. Geometrical relations among these features are used to judge whether the face/head has turned to the side relative to the shoulder. If not, a face-shoulder coordinate system is established using these face-shoulder features, and the hand images are transformed into this new coordinate system. This in effect defines hand gestures relative to the user's face and shoulder, thus significantly reducing the dimensions of the feature space for hand gestures. This face-shoulder coordinate transform can be combined either with traditional appearance-based hand gesture recognition methods, or with a conventional or hybrid deep neural network for RGB or RGB-D images.

Abstract: A method for manufacturing polyester filament spun-bonded non-woven fabric, comprising, i) drying respectively some polyester chips and black color masterbatch; ii) conveying the dried polyester chips and the dried black color masterbatch to a screw extruder for being melted and compressed into a viscous melt, and making the melt pass through a melt filter to remove impurities; iii) evenly distributing the filtered melt into each metering pump through a spinning manifold, cooling the output melt into filaments, drawing the filaments by airflow and the drawn filaments laying into fiber web, and preliminarily ironing and flattening the fiber web by a needle to obtain a fiber web-reinforced non-woven fabric; iv) winding the non-woven fabric by a winder and then shaping the non-woven fabric by a hot mill to obtain a polyester filament spun-bonded non-woven fabric. The polyester filament spun-bonded non-woven fabric exhibits superior tensile strength are excellent.

Abstract: Computer-readable media, computer systems, and computing methods for facilitating generation of entity names for entities are provided. The method includes determining a set of previously submitted queries that are associated with an entity. The most frequently used query within the set of previously submitted queries associated with the entity can be identified and, thereafter, designated as the entity name for the entity. The entity name can distinguish the entity from other entities. Such an entity name can be provided for presentation to a user, for example, as a related search suggestion via a search results page.

Abstract: A method and device for extracting entity relation based on deep learning and a server are provided. The method includes: preprocessing a text to be mined, to obtain a sentence with entities in the text to be mined; determining an entity pair in the sentence according to the entities, wherein the entity pair includes at least two entities, and determining candidate relations between entities in the entity pair; and determining an entity relation between the entities in the entity pair from the candidate relations.

Abstract: A method for manufacturing polyester filament spun-bonded non-woven fabric, comprising, i) drying respectively some polyester chips and black color masterbatch; ii) conveying the dried polyester chips and the dried black color masterbatch to a screw extruder for being melted and compressed into a viscous melt, and making the melt pass through a melt filter to remove impurities; iii) evenly distributing the filtered melt into each metering pump through a spinning manifold, cooling the output melt into filaments, drawing the filaments by airflow and the drawn filaments laying into fiber web, and preliminarily ironing and flattening the fiber web by a needle to obtain a fiber web-reinforced non-woven fabric; iv) winding the non-woven fabric by a winder and then shaping the non-woven fabric by a hot mill to obtain a polyester filament spun-bonded non-woven fabric. The polyester filament spun-bonded non-woven fabric exhibits superior tensile strength are excellent.

Abstract: Methods for detecting presence or absence of at least two known gene fusions in isolated genomic DNA comprise subjecting isolated genomic DNA to multiplex PCR. For each known gene fusion, the multiplex PCR employs one or a plurality of forward primers which hybridize to a first gene adjacent its fusion breakpoint location, and one or a plurality of reverse primers which hybridize to a second gene adjacent its fusion breakpoint location. The primers hybridize to the respective gene at consecutive respective positions separated from one another by a plurality of base pairs. Amplified products are detected and respectively represent the presence of a gene fusion. Amplified products may be Sanger sequenced to determine the fusion breakpoints. The identified specific fusion is monitored by a designed fusion PCR. Drug-resistant mutations are detected using multiplex mutation real-time PCR in patient plasma cell-free DNA during targeted therapy, for example, tyrosine kinase inhibitor-targeted therapy.

Abstract: A method and device for extracting entity relation based on deep learning and a server are provided. The method includes: preprocessing a text to be mined, to obtain a sentence with entities in the text to be mined; determining an entity pair in the sentence according to the entities, wherein the entity pair includes at least two entities, and determining candidate relations between entities in the entity pair; and determining an entity relation between the entities in the entity pair from the candidate relations.

Abstract: Methods, computer systems, and computer-storage media are provided for reference resolution. The present invention seeks to resolve entities in conversational search. To enable a more natural conversational search interaction, referential expressions such as pronouns are handled in queries. A component keeps track of previous queries and performs reference resolution based on an entity in the previous query and reformulates the query using an identifier for the referenced entity. Reference resolution may be performed for pronouns, plural pronouns, partial names, across domains, and on any device or platform.

Abstract: Methods, systems, and computer-readable media are provided for updating a search index with new uniform resource locators (URLs) and with metadata for new and known URLs. Data associated with communications made by users using a social network is received. The communications include a URL therein that a user has shared, posted, or otherwise communicated to one or more other users using the social network. When the URL is not found in a search index it is identified as a new URL and is added to the search index. A measure of a trending interest, or virality, of the URL is determined from the data. The determined virality is associated with the URL in a search index as metadata. The virality is useable to inform a ranking of the URL against a plurality of other URLs for identification and presentation as a search result in a search engine results page.

Abstract: Disclosed is a spanner tool for mounting or dismounting components, which comprises a control piece (2), a connecting piece (1) and a rotating piece (3). The connecting piece (1) is hinged with one end of the control piece (2) and one end of the rotating piece (3) respectively. An angle ? formed between the control piece (2) and the connecting piece (1) is less than an angle ? formed between the rotating piece (3) and the connecting piece (1) when the control piece (2) and the rotating piece (3) respectively rotate to limit positions at different sides of the connecting piece (1). The spanner tool is practical and reliable. The spanner tool is convenient and rapid-in-use. The spanner tool can be folded for portability when not in use. Additionally, locking tightness of the tool can be adjusted by adjusting a nut.

Abstract: Computer-readable media, computer systems, and computing methods for facilitating generation of entity names for entities are provided. The method includes determining a set of previously submitted queries that are associated with an entity. The most frequently used query within the set of previously submitted queries associated with the entity can be identified and, thereafter, designated as the entity name for the entity. The entity name can distinguish the entity from other entities. Such an entity name can be provided for presentation to a user, for example, as a related search suggestion via a search results page.

Abstract: Systems, methods, and computer-readable storage media are provided for identifying dominant entity categories associated with target entities. A target entity is received and plural data sources are utilized to determine entity categories of which the target entity is a member and an initial confidence score for each of the entity categories. Each initial confidence score represents the likelihood that the associated entity category is a dominant category for the target entity. At least one data source includes information pertaining to plural entities arranged in a graph-based ontology that includes identifiers of respective entity categories of which the subject entities are members. Graph-based confidence score propagation is then utilized to incorporate information regarding entities determined to be related to the target entity and accolades associated with the target entity to alter the initial confidence scores provided for various entity categories of which the target entity is a member.

Abstract: Methods, computer systems, and computer-storage media are provided for reference resolution. The present invention seeks to resolve entities in conversational search. To enable a more natural conversational search interaction, referential expressions such as pronouns are handled in queries. A component keeps track of previous queries and performs reference resolution based on an entity in the previous query and reformulates the query using an identifier for the referenced entity. Reference resolution may be performed for pronouns, plural pronouns, partial names, across domains, and on any device or platform.

Abstract: Methods, systems, and computer-storage media for improving the freshness, or the apparent freshness, of search results are described. In an embodiment, the first portion of search results presented on a search results page are based on responsiveness to the search query and a second portion of results describe only recently published documents that are responsive to the search query. In an embodiment, a more recent version of the document, which is not directly used to determine responsiveness, is used to build the caption for a search result. Another way to make search results appear fresh is to include a publication time within the search result caption. In one embodiment, the publication time is generated by calculating a point in time between when a document is first added to a search index and the previous time the search engine visited the site where the document was found.