Abstract: An adapter board includes a main body. Perforations are provided in a top face of the main body and configured to be in plug-in fit with a plug of the connector. Pads are provided on a bottom face of the main body and configured to be soldered to the board card. Row numbers r and column numbers n of the perforations and the pads are the same, and the perforations correspond to the pads on a one-to-one basis. The main body further includes a line passing area located between two adjacent columns of pads. A column spacing of the perforations is P, and a column spacing of the pads on two sides of the line passing area is M, where M?P?H, and H is a minimum spacing allowed between adjacent differential lines of the board card.

Abstract: The present disclosure provides a device to prevent LED module from being slipped downward and assembly methods, comprising: a cabinet, a LED module and a plurality of carrier assemblies; the cabinet is made of SPCC and is provided with a plurality of horizontally distributed rectangular-shaped through holes; several magnetic columns are fixedly connected around the periphery of the LED module, and one end of the magnetic column that is far away from the LED module is adsorbed on the cabinet; the carrier assemblies are arranged on the cabinet to carry the magnetic columns to prevent the magnetic columns from being slipped downward due to the influence of LED module gravity or vibration, thus ensuring that the LED module is in the established position, so that the accuracy of the LED display screen is accurate.

Abstract: A method for charge control, a terminal device and a storage medium. The method includes controlling a charging cut-off function of a PMIC of a terminal device to be in an off state in response to the terminal device being in a charging state; determining a target cell voltage of the terminal device in response to the terminal device being in a cut-off interrupt state; and setting the PMIC based on the target cell voltage to control to continue charging the terminal device until reaching the target cell voltage.

Abstract: A charging system includes: a power management integrated circuit, a bidirectional voltage conversion circuit, a controller and a battery level detection circuit. The bidirectional voltage conversion circuit is configured to work in a working mode including at least a boost mode and a buck mode. The controller has a first terminal. An input terminal of the battery level detection circuit is connected to a battery, an output terminal of the battery level detection circuit is connected to the first input terminal of the controller, and the battery level detection circuit is configured to detect a voltage and a current of the battery and transmit the voltage and the current of the battery to the controller. The controller is configured to control the working mode of the bidirectional voltage conversion circuit and a working state of the power management integrated circuit according to the battery voltage and the current.

Abstract: A guar gum fracturing fluid gel and a guar gum fracturing fluid system with reduced pH dependence, a preparation method and an application thereof are disclosed. The fracturing fluid gel includes 0.01-0.2% of nanomaterial, 0.1-0.5% of guar gum, 0.1-0.5% of organic boron-titanium crosslinker and a remaining amount of water. The fracturing fluid gel is more stable in network structure, tolerant of different temperatures and has good shear resistance. A preparation method and an application of the fracturing fluid gel are also provided. In the guar gum fracturing fluid system, the dependence on pH level is reduced, thereby alleviating the damage caused by a high pH value to a reservoir.

Abstract: A method for suppressing coherent and polarization-induced fading by simultaneous monitoring of loss and vibration is provided. By using merely common single-mode sensing fibers, the polarization diversity-based measurement method solves the conflict between ?-OTDR and COTDR in terms of polarization state. In addition, the method not only achieves a better coherent fading noise suppression effect but also enhances the capability of recognizing small loss events in the monitoring of loss parameters. Meanwhile, the method can suppress the influence of coherent fading on the phase demodulation of ?-OTDR and reconstruct a vibration signal with high fidelity in the monitoring of perturbation parameters, which can effectively reduce the error rate of external perturbation warning.

Abstract: A charging circuit includes at least two charging chips for charging a battery of an electronic device. Each of the at least two charging chips is configured to operate in an independent charging mode. Each charging chip includes a first voltage sampling end and a second voltage sampling end for collecting voltage information of the battery, and each charging chip is configured for independent charging according to the collected voltage information. The first voltage sampling end and the second voltage sampling end are respectively connected to two poles of the battery.

Abstract: The patent application discloses an easily curved LED system. The LED system may comprise a printed circuit board (“PCB”). The PCB may have at least one layer. An aperture through all layers of the PCB may exist and may be interposed between a location for a LED at a first side of the PCB and a location for a chipset on a second side PCB board.

Abstract: The patent application discloses an LED module. The LED module is removably connected to a source of constant current. The LED module may comprise a substrate and an electrical circuit. The substrate may have a parallel top and bottom side, a curved side connected to both ends of the top and bottom sides to form a quadrilateral shape. The electrical circuit is mounted and molded on the substrate. The electrical circuit may comprise an LED.

Abstract: A knowledge graph processing method is provided. The method includes: selecting several nodes and their edges from a shared knowledge graph based on one or more entity types involved in a target service domain, to obtain a target subgraph, where the shared knowledge graph is obtained by fusing knowledge graphs of one or more service domains; processing the target subgraph to extract one or more graph features, where the graph feature includes some or all of the following: a node representation vector, an edge representation vector, a graph structure feature, a semantic feature of graph text information, and a graph rule feature; and providing the graph feature to a target data processing task of the target service domain, where the graph feature is used to serve as an input feature of the target data processing task together with a task customization feature.

Abstract: A preparation method for and an application of a modified siloxane-based supercritical carbon dioxide thickener are disclosed. The method includes the following steps: using 1,3-diallyl-1,3,5-triazine-2,4,6-trione as a polymerization monomer, and dropwise adding 1,3,5,7-tetramethylcyclotetrasiloxane for hydrosilylation in the presence of a catalyst to obtain a modified siloxane polymer. The obtained modified siloxane polymer is directly used as a supercritical carbon dioxide thickener without purification post-treatment; when in use, the modified siloxane polymer is prepared into a solution with a concentration of 1-2%, has an excellent thickening effect with no cosolvent required, and has high solubility in carbon dioxide and high temperature resistance.

Abstract: A method for parameter adjustment and an electronic device are provided. The method includes: receiving a first input for a target button by a user; and adjusting, in response to the first input, at least two first output parameters corresponding to the target button, where the at least two first output parameters are output parameters of the electronic device.

Abstract: This specification relates to the field of knowledge graphs, and in particular, to knowledge reuse methods, apparatuses, computer-readable media, and systems. In an example computer-implemented method, a child entity is defined based on a parent entity, where the parent entity is selected from entities in a knowledge graph. A knowledge inheritance method is performed to inherit a portion of instance data of the parent entity. Instance data of the child entity are determined. First graph increment information corresponding to the instance data of the child entity is stored.

Abstract: Implementations of the specification provide a knowledge graph data fusion method and system, and the method includes: obtaining a target entity field and a target relationship description, the target entity field and the target relationship description being selected from ontology definition data of two or more knowledge graphs; and then, obtaining data instances of related platforms or technology fields, and processing the obtained data instances based on a graph operator that is in ontology definition data of a fused knowledge graph and that is used to perform fusion processing on entity fields and relationship descriptions of different platforms or technology fields, to generate the fused knowledge graph.

Abstract: Some embodiments of this specification disclose a knowledge graph construction method and system. The method includes: obtaining ontology definition data of a knowledge graph, where the ontology definition data includes node definition data of a plurality of nodes, the node definition data includes a node attribute value type, the node attribute value type is a basic type, a standard type, or a concept type, the basic type is used to represent a data type of an attribute value, the standard type is used to represent a fixed format of the attribute value, and the concept type is used to represent a multi-level structure of the attribute value; and processing instance data based on the ontology definition data to obtain the knowledge graph that includes a node instance of a standard type attribute value and/or a concept type attribute value.

Abstract: Provided are a chip and a pin line-out design method therefor, which are applied to a BGA packaged chip. The method includes: according to pin position information and pin definition information of a chip, determining a number of circuit board layers required for pin line-out of the chip (S1); allocating line-out layers to pins of the chip in their respective circuit boards (S2); and according to a pin density and transmission line width requirement of the chip, determining a specification of a via hole in each circuit board for leading the pin of the chip out to the corresponding line-out layer, to perform a corresponding line-out design on the basis of the via hole (S3). It may be seen that the described unified pin line-out design for the BGA packaged chip is more refined, and the quality of the line-out design of the pins of the chip is ensured.

Abstract: A method for charge control, a terminal device and a storage medium. The method includes controlling a charging cut-off function of a PMIC of a terminal device to be in an off state in response to the terminal device being in a charging state; determining a target cell voltage of the terminal device in response to the terminal device being in a cut-off interrupt state; and setting the PMIC based on the target cell voltage to control to continue charging the terminal device until reaching the target cell voltage.

Abstract: A preparation method for and an application of a modified siloxane-based supercritical carbon dioxide thickener are disclosed. The method includes the following steps: using 1,3-diallyl-1,3,5-triazine-2,4,6-trione as a polymerization monomer, and dropwise adding 1,3,5,7-tetramethylcyclotetrasiloxane for hydrosilylation in the presence of a catalyst to obtain a modified siloxane polymer. The obtained modified siloxane polymer is directly used as a supercritical carbon dioxide thickener without purification post-treatment; when in use, the modified siloxane polymer is prepared into a solution with a concentration of 1-2%, has an excellent thickening effect with no cosolvent required, and has high solubility in carbon dioxide and high temperature resistance.

Abstract: Provided are a chip and a pin line-out design method therefor, which are applied to a BGA packaged chip. The method includes: according to pin position information and pin definition information of a chip, determining a number of circuit board layers required for pin line-out of the chip (S1); allocating line-out layers to pins of the chip in their respective circuit boards (S2); and according to a pin density and transmission line width requirement of the chip, determining a specification of a via hole in each circuit board for leading the pin of the chip out to the corresponding line-out layer, to perform a corresponding line-out design on the basis of the via hole (S3). It may be seen that the described unified pin line-out design for the BGA packaged chip is more refined, and the quality of the line-out design of the pins of the chip is ensured.