Abstract: Provided are a method and device employing a smart contract to realize identity-based key management. The method comprises: running a smart contract, and executing a key management process, wherein the key management process comprises: when a key of a target user requires an update and the target user is not a supervised user, generating a master public key and a master private key pertaining to the target user; acquiring, from a blockchain, identity information of the target user; generating a first target private key according to the master public key and the master private key pertaining to the target user and the identity information of the target user; and replacing a current private key of the target user with the first target private key.

Abstract: A wavelength division multiplexing structure comprises a first wavelength division multiplexer and a second wavelength division multiplexer, each comprises N filtering units, a branch side interface connected to each filtering units, and a line side interface, N being a positive integer; each filtering unit corresponds to one central wavelength; the line side interface of the first wavelength division multiplexer and that of the second wavelength division multiplexer are connected by an optical fiber; the N filtering units are divided into multiple filtering unit groups, and the multiple filtering unit groups are cascaded in series or cascaded in a series-parallel combination; filter units in each filtering unit group are cascaded in series; and a cascade mode and/or cascade position corresponding to each filter unit in the first wavelength division multiplexer and the second wavelength division multiplexer is at least related to the center wavelengths corresponding to the filter unit.

Abstract: Embodiments of the present disclosure provide a method, apparatus, electronic device and storage medium for storing data. After target data is obtained, a first data feature of the target data is extracted, the first data feature representing a data volume of the target data; the target shard number is obtained based on the first data feature, the target shard number representing the number of storage units for storing target data; a corresponding storage engine is obtained based on the target shard number, and the target data is stored in the storage engines in shards. The matched target shard number is obtained based on the first data feature of the target data, and a corresponding storage engine for storage is obtained based on the target shard number.

Abstract: A method for fault location comprises at least one of: sending, by a second optical module, a configuration message, to a first optical module, receiving, by the second optical module, a response message from the first optical module, and performing fault location according to the response message for the configuration message, wherein the response message is a response message sent to the second optical module to confirm a loopback configuration is successful, after the first optical module receives the configuration message from the second optical module and the first optical module configures the loopback configuration; or sending a data stream to a first optical module after a second optical module receives a response message from the first optical module, receiving, by the second optical module, a data stream returned from the first optical module, and performing fault location according to the data stream returned, wherein the response message is a response message sent to the second optical module to c

Abstract: A display substrate is provided, including: a base (1); and a plurality of pixel units (10) located on the base (1) and arranged in an array, where the display substrate further includes a plurality of data lines (25), and for each of the plurality of data lines (25), the data line (25) extends along a column direction and is located between adjacent first pixel unit (10A) and second pixel unit (10B) in a row direction, the data line (25) is arranged in a different layer from a first pixel electrode (40A) of the first pixel unit (10A) and a second pixel electrode (40B) of the second pixel unit (10B), and the data line (25) includes a first branch line (252) and a second branch line (253) that are connected in parallel and extend in the column direction; an orthographic projection of the first branch line (252) on the base (1) at least partially overlaps with an orthographic projection of the first pixel electrode (40A) on the base (1); an orthographic projection of the second branch line (253) on the base (1)

Abstract: Some embodiments include an assembly having conductive structures distributed along a level within a memory array region and another region proximate the memory array region. The conductive structures include a first stack over a metal-containing region. A semiconductor material is within the first stack. A second stack is over the conductive structures, and includes alternating conductive tiers and insulative tiers. Cell-material-pillars are within the memory array region. The cell-material-pillars include channel material. The semiconductor material directly contacts the channel material. Conductive post structures are within the other region. Some of the conductive post structures are dummy structures and have bottom surfaces which are entirely along an insulative oxide material. Others of the conductive post structures are live posts electrically coupled with CMOS circuitry. Some embodiments include methods of forming assemblies.

Abstract: The present disclosure relates to a device and method for recovering arsenic and gallium. A closed furnace body is in communication with a vacuuming pipe, and the vacuuming pipe is connected to a vacuuming mechanism. The closed furnace body includes a first furnace body, a second furnace body and a third furnace body. A first heating mechanism and a graphite crucible are arranged inside the first furnace body, the first heating mechanism being used for heating the graphite crucible. A first collection cylinder is in communication with a second collection cylinder. The device for recovering arsenic and gallium of the present disclosure is arranged with a structure for realizing directional condensation of gallium arsenide clusters and arsenic vapor, respectively, to realize high-purity recovery of arsenic and gallium.

Abstract: Integrated circuits and methods to provide an operative coupling comprising an input stage and an output stage between an analog input and an analog output; synchronously operate a plurality of high voltage domain switches of the input stage and a plurality of low voltage domain switches of the output stage at a frequency to galvanically isolate the input stage from the output stage across a plurality of capacitors having a plurality of input plates respectively connected to the switches of the input and output stages; supply an analog input signal to the input stage; transfer a differential voltage signal component within a range of a common mode voltage supply from the high voltage domain of the input stage to the low voltage domain of the output stage; differentially amplify the low voltage domain differential voltage signal component; and output an analog output signal.

Abstract: This control device comprises: a temperature acquiring unit that acquires a detected temperature; a friction force calculation unit that calculates a viscous friction force generated in an actuator of a machine at the detected temperature and a reference temperature; and a control unit that limits, on the basis of the viscous friction force, the operation of the machine so as not to exceed the ability of the actuator.

Abstract: A method of providing a housing assembly and an electronic water pump, a housing assembly and an electronic water pump are provided. The housing assembly of the electronic water pump has a stator assembly, a rotary shaft, a shaft base, and an injection molded housing. The stator assembly is formed through one-piece injection molding. The housing assembly is formed by over-molding. The rotary shaft and the shaft base of the pump are embedded in the injection molded housing. The stator assembly is enclosed by the injection molded housing to provide self-sealing between the stator assembly and the injection molded housing.

Abstract: A method for identifying a brush type of a cleaning device includes: acquiring a detection voltage of a brush motor, the detection voltage being less than a starting voltage of the brush motor; acquiring a first impedance of the brush motor, in response to inputting the detection voltage to the brush motor; and determining a brush type corresponding to the brush motor based on the first impedance and a correspondence between impedances and brush types stored.

Abstract: An array substrate, a testing method therefor and a display apparatus. The array substrate comprises multiple touch control electrodes forming multiple touch control rows and multiple touch control columns, and multiple pixel units forming multiple pixel rows and multiple pixel columns, the orthographic projection of the touch control electrodes on the array substrate at least partially overlapping the orthographic projection of the multiple pixel units on the array substrate, and the pixel units comprising multiple sub-pixels; a touch control lead group is arranged in the middle of at least one adjacent pixel column, the touch control lead group at least comprising a first lead and a second lead arranged in parallel, and the first lead is connected to one of the touch control electrodes in one touch control row, and the second lead is connected to another touch control electrode in the adjacent touch control row.

Abstract: The disclosure provides techniques for facilitating video creations. The techniques comprise turning on a first camera on a first side of a terminal; turning on a second camera on a second side of the terminal; capturing, by the first camera, a first video; capturing, by the second camera, a second video; displaying the first video and the second video concurrently, wherein the displaying further comprises displaying the first video in a first area and the second video in a second area during a first time period, and in response to a first instruction to switch video content, displaying the second video in the first area and the first video in the second area during a second time period; and creating a timeline including the first time period, the second time period, and a time stamp of the video content switch in the first area.

Abstract: This disclosure provides a network control method, an apparatus, and a system, to manage an IP network and an optical network together, thereby properly controlling use of resources of an entire network. The method includes: obtaining first link state information and second link state information, where the first link state information is used to indicate a link state of an Internet Protocol IP network, and the second link state information is used to indicate a link state of an optical network; determining third link state information based on the first link state information and the second link state information, where the third link state information includes the link state of the IP network and the link state of the optical network; and computing a path based on the third link state information.

Abstract: A data processing method, a data processing apparatus and a storage medium. The data processing method includes: receiving first data comprising at least one piece of second data (S101); transmitting the at least one piece of second data to at least one first data transmission channel (S102); sending, according to link cross information of a Printed Circuit Board (PCB), data of the at least one first data transmission channel to at least one corresponding data transmission link (S103); respectively receiving at least one piece of third data based on at least one port (S401); and sending, according to a channel identifier of request information, the at least one piece of third data to a corresponding data reconstitution link (S402).

Abstract: Methods are provided. In some embodiments, a method of forming a contact structure on a semiconductor substrate includes disposing a selective metal silicide layer on a surface of a contact structure by maintaining a first temperature of a substrate and providing a first carrier gas, a first metal-containing precursor, and a first hydrogen-containing precursor to a first deposition chamber. The method includes disposing a partially selective metal layer on a surface of the selective metal silicide layer and one or more surfaces of a cavity by maintaining a second temperature of the substrate and providing a second carrier gas, a second metal-containing precursor, and a reducing agent to the first deposition chamber or a second deposition chamber. The second metal-containing precursor and the reducing agent are introduced to the first deposition chamber or the second deposition chamber at a chamber pressure of about 50 T to about 150 T.

Abstract: Provided are a vacuum distillation furnace, and a method for preparing high-purity copper particles. In view of the fact that high-purity copper prepared by the traditional method in the current industrial production has an unsatisfactory purity, a high impurity content, and a complicated composition, a vacuum distillation method is adopted. During the vacuum distillation method, most of valuable metals in a copper matrix are volatilized and enter into a gas phase, such that the metals are separated from the copper matrix, thereby allowing the purification of copper; and copper powder particles volatilized to a condensation plate have a smooth surface and a purity of 5 N grade or more.

Abstract: Compositions and methods for the treatment of peripheral artery disease and cardiopulmonary diseases or disorders are provided. In accordance with the instant invention, methods of inhibiting, treating, and/or preventing peripheral artery disease or symptoms associated therewith are provided. In a particular embodiment, the methods inhibit, treat, and/or prevent claudication associated with peripheral artery disease.

Abstract: The present invention belongs to the field of thermal functional devices. Provided is a topological insulation device having negative thermal expansion. In the topological insulation device, three assemblies of different properties are constructed using assembly units of special geometric structures, and then different assemblies are assembled to form an outer heat-conduction ring and a thermal insulation region, which is wrapped by the outer heat-conduction ring, so that the device has the characteristics of surface thermal conduction and internal thermal insulation, and an edge state and a topological protection property, which are similar to those of an electrical topological insulator, are realized in a macroscopic heat conduction process.

Abstract: Described is a method of setting up a direct connection between edge sites on a 5G communications network. The method comprises: configuring 5G network functions (NFs) in the 5G communications network; configuring 5G NFs at the edge sites, if not already configured; and based on said configured NFs, setting up a direct tunnel between the edge sites according to a pre-defined tunnel policy.