Abstract: A meta-searching method, including determining a target metaverse for a current search using intent classification based on an inquiry text included in a searching request of a user; extracting a searching clue and a clue type; selecting a current search engine for performing the current search using the target metaverse and the clue type by prioritizing a search engine associated with the target metaverse; performing identity authentication using the user account information of the user in the target metaverse prior to the search based on determining that user account information is required to search for the searching clue for performing a search using the current search engine, and performing the search using the current search engine based on the searching clue; and providing the search results to the user.

Abstract: Disclosed in the present application are a concrete protection material, and a preparation method and a construction method therefor. The concrete protection material consists of 50%-90% of a component A and 10%-50% of a component B in percentage by weight, where the component A is prepared from 30%-65% of organic silicon, 2%-5% of nano-silicon dioxide and the balance of an organic solvent in percentage by weight; and the component B is prepared from 20%-50% of an organic base and the balance of water in percentage by weight. The present application not only can form nano-particles having a strengthening effect in capillary channels of a concrete surface layer, but also can achieve a technical effect of superhydrophobicity on the concrete surface layer.

Abstract: Disclosed are a polyethylene glycol conjugate drug, and a preparation method therefor and the use thereof. Specifically, the present invention relates to a polyethylene glycol conjugate drug represented by formula A or a pharmaceutically acceptable salt thereof, a method for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, an intermediate for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, and the use of the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof in the preparation of a drug.

Abstract: The present invention discloses a extra thick hot rolled H section steel and a production method therefor. The extra thick hot rolled H section steel contains, by mass, the following chemical components: 0.04-0.11% of C, 0.10-0.40% of Si, 0.40-1.00% of Mn, 0.40-1.00% of Cr, 0.10-0.40% of Cu, 0.020-0.060% of Nb, 0.040-0.100% of V, 0.010-0.025% of Ti, 0.010-0.030% of Al, 0.0060-0.0120% of N, not more than 0.015% of P, not more than 0.005% of S, not more than 0.0060% of O, and the balance Fe and trace residual elements, wherein 0.090%?Nb+V+Ti?0.170%, 6.5?(V+Ti)/N?10.5, and 0.30%?CEV?0.48%. The extra thick hot rolled H section steel has a flange thickness of 90 mm-150 mm, has excellent comprehensive mechanical properties, and can well meet the needs for heavy supporting structural parts of high-rise buildings, large squares, bridge structures, etc.

Abstract: A multi-degree-of-freedom continuum robot with a flexible target grasping function comprises a driving device module, a trunk simulation module and a nimble finger module. The trunk simulation module is composed of a rotary compression module and a bending compression module. Each module has a unified connection interface reserved at the end, and is combined and assembled according to actual needs. The driving module is arranged on the base of the robot to realize the driving operation of all cables to control the motion of the robot. The rotary compression module can simultaneously generate the motion in the forms of rotation and compression, thereby compensating for the defect of blind angle of the bending compression module. The bending compression module can realize compression deformation and bending deformation of the module independently. The nimble finger module realizes a grasping function by multi-finger collaboration.

Abstract: An apparatus includes a laminate, the laminate including a dielectric layer having a first surface and a second surface opposed to the first surface, and a conductive layer forming a circuit element overlying the first surface of the dielectric layer. The apparatus further includes a magnetic layer over the conductive layer. A first edge surface of the magnetic layer is coplanar with a first edge surface of the laminate, and a second edge surface of the magnetic layer is coplanar with a second edge surface of the laminate.

Abstract: Methods and systems are described herein for a decision layer of a multi-layer data platform. The decision layer may process application queries and serve the queries based on a dataset of previously generated and indexed data or, as a last resort, queries the blockchain node directly. Using indexed blockchain data to serve application queries reduces latency and downtime of traditional systems that direct queries to blockchain nodes immediately. Furthermore, the decision layer overcomes high latency and downtime issues associated with a pool of load-balanced nodes by reducing the number of direct queries to a blockchain. When applications rely on data directly queried from a blockchain, they are susceptible to limited availability, a problem that the decision layer mitigates with indexed and updated blockchain data.

Abstract: A chip package structure, manufacturing method thereof, and module are described. In an embodiment, the chip package structure includes: a substrate, a wiring layer, a chip, and a second conductive bump, wherein, in an embodiment, the substrate includes a first region and a second region surrounding the first region, and the wiring layer is located on side of the substrate and includes metal wire, wherein at least part of a metal wire is in contact with the substrate in direction perpendicular to the substrate, and the metal wire overlaps with the second region, wherein the chip is located on side of the wiring layer facing away from the substrate, and the chip corresponds to the first region. In an embodiment, a first conductive bump is provided on side of the chip facing away from the substrate and is electrically connected to the metal wire.

Abstract: Provided is an application of trehalase in fermentative production. The trehalase has amino acid sequences shown in SEQ ID NO.6, SEQ ID NO.7, and SEQ ID NO.8. Provided are methods for producing and applying trehalase, particularly being applied in the production and fermentation of alcohol and an amino acid.

Abstract: An operational amplifier, a drive circuit, an interface chip (1201, 1301, 1401, 1501), and an electronic device (1600) relate to the field of power electronics technologies. The operational amplifier includes a first load (R1), a second load (R2), a first switching transistor group (301-1), a second switching transistor group (301-2), and a tail current source (203). The first switching transistor group (301-1) has a first end connected to a first output end (outp) of the operational amplifier and connected to a power supply (VDD) of the operational amplifier by using the first load (R1), and has a second end grounded by using the tail current source (203). The second switching transistor group (301-2) has a first end connected to a second output end (outn) of the operational amplifier.

Abstract: An antenna apparatus includes a first antenna array that includes at least one antenna unit, and a first antenna unit in the at least one antenna unit includes a first patch subunit and a first feeder subunit. The first feeder subunit includes a first feeder and a second feeder. A first included angle ? between the first patch subunit and the first feeder satisfies 0<?<90°. A second included angle ? between the first feeder and the second feeder satisfies 0<?<180°.

Abstract: An antenna having high isolation and a low cross-polarization level, a base station, and a terminal are provided. The antenna includes a radiation layer, a feed layer, and an aperture coupling layer disposed between the radiation layer and the feed layer. The aperture coupling layer includes a metal sheet. A first feeding slot, a second feeding slot, and a middle slot are configured in the metal sheet. The middle slot is located between the first feeding slot and the second feeding slot, and is located in a weak electric field region of the metal sheet. The middle slot is configured between the first feeding slot and the second feeding slot of the metal sheet.

Abstract: A conjugation of a cytotoxic drug to a cell-binding molecule with a bis-linker (dual-linker) as shown in Formula (I). Bis-linkage methods of making a conjugate of a cytotoxic drug/molecule to a cell-binding agent in a specific manner are also described, as well as application of the conjugates for the treatment of a cancer, or an autoimmune disease, or an infectious disease. wherein “” is an optional bond; X, Y, Z1, and Z2 are a functional group; m1 and n are a integer; L1 and L2 are a linker.

Abstract: Embodiments provide a radio frequency apparatus including a radome, an absorber, and a radio frequency circuit board that may be used for millimeter wave radar of an intelligent automobile to reduce high-frequency radiation interference from a radio frequency chip and an antenna feeder.

Abstract: An electrical connector includes a first conductive terminal, a second conductive terminal, an insulated body integrally molded on the first conductive terminal and the second conductive terminal, and a metallic shell on the insulated body. The insulated body includes a first tongue portion and a second tongue portion aligned side by side. The first conductive terminal is provided with a first contact portion. The second conductive terminal is provided with a second contact portion. The metallic shell includes a first cylinder portion provided with a first space and a second cylinder portion provided with a second space. The first cylinder portion surrounding the first tongue portion and the second cylinder portion surrounding the second tongue portion share a dividing portion for separating the first space from the second space, so that the two electrical connection ports of the electrical connector are independent and avoid mutual influence between the two electrical connection ports.

Abstract: Methods and computer program products for determining one or more settings of a camera apparatus are provided. The methods include obtaining one or more parameters of the camera apparatus and determining one or more settings of the camera apparatus using the one or more parameters and an image repository. The image repository may include images with image parameters associated with the images, which may be correlated with the one or more parameters of the camera apparatus, and the images may also have an associated rating attribute. One or more images may be identified for inclusion in a subset of images, based on an image's image parameters and/or based on an image's rating attribute. The camera settings of one image of the subset of images, corresponding to the settings used to create the one image, may be used to automatically adjust the one or more settings of the camera apparatus.

Abstract: A connector includes first contacts, second contacts, a middle plate, a first electromagnetic compatibility (EMC) pad, a second EMC pad, an insulating body, and a spacer. The middle plate is clamped between the first contacts and the second contacts. The first EMC pad is located above the first contacts. The second EMC pad is located below the second contacts. The first EMC pad and the second EMC pad are connected to the middle plate respectively. The insulating body is partially embedded with the first contacts, the second contacts, the middle plate, the first EMC pad, and the second EMC pad. The spacer is formed between the first contacts and the second contacts, and is partially embedded with the first contacts and the second contacts. A manufacturing method where the connector is assembled as a semi-finished product in advance is further provided to reduce the production cost.

Abstract: A connector includes an insulated member, a plurality of first conductive terminals, a plurality of second conductive terminals, a shielding shell, and a metal housing. The first conductive terminals are disposed on an upper surface of the insulated member and extending rearward. The second conductive terminals are disposed on a lower surface of the insulated member, extending rearward, and located below the first conductive terminals. The shielding shell is fitted over the insulated member, and the shielding shell has a plug end and a mounting end. The metal housing has a plurality of grounding structures, the metal housing is fitted over the mounting end of the shielding shell, and the grounding structures are completely located below the second conductive terminals.

Abstract: A conjugation of a cytotoxic drug to a cell-binding molecule with a bis-linker (dual-linker) as shown in Formula (I). Bis-linkage methods of making a conjugate of a cytotoxic drug/molecule to a cell-binding agent in a specific manner are also described, as well as application of the conjugates for the treatment of a cancer, or an autoimmune disease, or an infectious disease. wherein “” is an optional bond; X, Y, Z1, and Z2 are a functional group; m1 and n are a integer; L1 and L2 are a linker.