Abstract: A first data management apparatus in a plurality of data management apparatuses corresponds to a first blockchain node in a blockchain network, and a second data management apparatus corresponds to a second blockchain node in the blockchain network. A storage mounted to the first data management apparatus and a storage mounted to the second data management apparatus are configured to form a storage resource pool of the blockchain network. A method includes a target data management apparatus in the plurality of data management apparatuses that receives a data operation request; and that the target data management apparatus obtains a storage address of a plurality of data shards of target data from the blockchain network based on the data operation request, and performs I/O on the target data in the storage resource pool based on the storage address of the plurality of data shards.

Abstract: A blockchain network management method includes a management platform receiving an inter-blockchain application submitted by a user; and invoking a blockchain platform management interface based on the inter-blockchain application to install an inter-blockchain contract for a first blockchain network and a second blockchain network separately. The inter-blockchain contract is used by the first blockchain network and the second blockchain network to establish a connection to a relay apparatus separately, and perform an inter-blockchain transaction via the relay apparatus. The management platform installs an inter-blockchain contract for different blockchain networks such as a heterogeneous blockchain network through a same set of blockchain platform management interfaces, to integrate an inter-blockchain capability, and truly streamline services of the blockchain networks. Data can be migrated between different blockchain networks without adapting to a heterogeneous kernel.

Abstract: A method of producing an ultraviolet laser diode with a low oscillation threshold current density includes stacking a first cladding layer, a light-emitting layer, and a second cladding layer on a substrate in this order to form a nitride semiconductor laminate (step S101), etching at least a portion of the nitride semiconductor laminate to form a mesa structure and setting the ratio between the length of the resonator end faces and the length of the side surfaces of the mesa structure in plan view between 1:5 and 1:500 (step S102), disposing first conductive material on a portion of a first area and applying heat treatment of 400° C. or higher to form a first electrode (step S103), and disposing a second conductive material in an area on the second cladding layer, at a distance of 5 ?m or more from the side surfaces, to form a second electrode (step S104).

Abstract: A blockchain network management method includes receiving a user registration request, where the user registration request includes a user type of a user, and the user type is based on a deployment manner of a blockchain network managed by the user; registering a corresponding organization for the user based on the user registration request, where the organization is associated with resource space corresponding to the user type; and invoking a processing interface of the resource space to execute corresponding service logic. In the method, an organization with a consistent structure is registered for an on-cloud user or an off-cloud user, and the organization is bound to resource space of a corresponding user type, to perform service processing through a processing interface of the corresponding resource space.

Abstract: A method of producing an ultraviolet laser diode with a low oscillation threshold current density includes stacking a first cladding layer, a light-emitting layer, and a second cladding layer on a substrate in this order to form a nitride semiconductor laminate (step S101), etching at least a portion of the nitride semiconductor laminate to form a mesa structure and setting the ratio between the length of the resonator end faces and the length of the side surfaces of the mesa structure in plan view between 1:5 and 1:500 (step S102), disposing first conductive material on a portion of a first area and applying heat treatment of 400° C. or higher to form a first electrode (step S103), and disposing a second conductive material in an area on the second cladding layer, at a distance of 5 ?m or more from the side surfaces, to form a second electrode (step S104).

Abstract: Systems, methods, and computer program products are provided for streaming video over a network. In various embodiments, a source video including at least a source frame is read. The source frame is encoded into a corresponding tensor representation by a machine learning model. The corresponding tensor representation is decomposed into a plurality of sub-tensors. Each of the plurality of sub-tensors is encoded into a corresponding packet and transmitted via a network from a source node to a receiver node.

Abstract: The disclosure provides a reversible watermarking method for the oblique photography three-dimensional models with controllable accuracy. According to the disclosure: firstly, by using the global stability of the average included angle of vertex normal vector, the feature points of the oblique photography three-dimensional model are extracted; secondly, the mapping relationship is established by the ratio of the distance between feature points and non-feature points, and the vertexes are grouped, and each group consists of a feature point corresponding to several non-feature points; finally, the spherical coordinate system is constructed by taking the feature points as the coordinate origin in grouping, and the watermark is embedded by modifying the radius of the coordinate system.

Abstract: A blockchain maintenance method adds a target blockchain node group of a first tenant to a channel. In the method, a management node sends new channel configuration information of the channel to an execution node of a second tenant. The execution node of the second tenant generates incremental configuration information of the channel based on the new channel configuration information and old channel configuration information of the channel, and sends the incremental configuration information to a consensus organization. Each blockchain node group that has joined the channel obtains, from the consensus organization, a block including the incremental configuration information, and adds the block to a stored blockchain, to reach a consensus that the target blockchain node group joins the channel. The target blockchain node group is configured based on the incremental configuration information to join the channel.

Abstract: A data storage system provides a data storage interface for a plurality of clients, and the client may request on-chain storage by invoking the data storage interface. The data storage system may interconnect with and serve a plurality of blockchain systems. In addition, the data storage system further includes a storage resource pool shared by the plurality of clients to share a storage resource.

Abstract: The present application provides a shared energy storage scheduling method and system based on energy frequency regulation and load demand. The method includes: establishing an objective function of a shared energy storage system participating in cooperative scheduling of energy frequency regulation and load demand; inputting relevant parameters of a grid side, a user side and the shared energy storage system into the objective function; solving the objective function according to an objective function constraint condition and a switching cost of a load importance degree and in combination with a mixed integer linear programming algorithm, to obtain a shared energy storage configuration scheme; configuring the shared energy storage system according to the shared energy storage configuration scheme, and controlling the shared energy storage system to participate in energy cooperative scheduling of the grid side and the user side according to a hierarchical control strategy of the shared energy storage system.

Abstract: A circuitry and a detection method using the circuitry. The circuitry includes circuits and electrochemical sensors connected to the circuits; the circuits include a reference voltage circuit, a potentiostatic circuit, and a micro-signal measuring circuit; on-off switches are provided on corresponding circuits. A test device and a detection method which use the circuitry can effectively reduce signal noise, reduce fluctuation of detection signals during a detection process, and improve the precision and accuracy of sample detection results.

Abstract: A processing system and processing method for blocked microreactor. The processing system comprises an gas intake device, a flushing device, a microreactor to be processed and a plasma processing device. One end of the microreactor to be processed is connected with the gas intake device and the flushing device through a pipeline; the other end of the microreactor to be processed is connected with a waste liquid bottle through the pipeline; and the microreactor to be processed is arranged between electrodes of the plasma processing device. The present invention uses the effective reactivity of plasma and active free radicals in an excitation atmosphere to crack micro blockage in a micro channel in a short time. The method of the present invention has high flexibility and strong controllability, and can select plasma electrodes according to blocked regions to crack the blockage in a specific region.

Abstract: A method for evaluating inhalation administration and a system for evaluating inhalation administration, the system including a flow detector and an intelligent terminal. The method includes the following steps: 1) obtaining patient-related data of an inspiration flow-time curve; 2) according to an inspiration flow parameter of inhalation administration, obtaining a start time and an end time of each effective inspiration flow section on the inspiration flow-time curve; and 3) calculating an effective inspiration volume Veffective based on the inspiration flow-time curve and a series of time parameters ti1 and ti2 obtained. The method for evaluating inhalation administration and the system for evaluating inhalation administration provide a basis for medical workers to select an appropriate inhalation administration device for patients.

Abstract: An object of the present invention is to provide a method for manufacturing an optical device having a laser diode, which method is suitable for mass production, and an optical device having a laser diode which allows accurate property evaluations thereof with small measurement errors. Specifically, the method includes: an etching process of etching a semiconductor lamination unit to form a mesa structure having a resonator end face, thereby forming a laser diode; and a reflecting layer forming process of forming a light reflecting layer such that the light reflecting layer covers entire side surfaces of the mesa structure, wherein the semiconductor lamination unit has a substate, a n-type clad layer including a nitride semiconductor layer having n-type conductivity, a light-emitting layer including at least one quantum well, and a p-type clad layer including a nitride semiconductor layer having p-type conductivity, laminated in this order.

Abstract: A terminal device obtains, from a credential issuing device, a first encrypted information set and a first credential information set that correspond to a plurality of pieces of first user information, where the first encrypted information set includes a plurality of pieces of first encrypted information obtained after encryption is correspondingly performed on the plurality of pieces of first user information, and the first credential information set includes a plurality of pieces of first credential information obtained after issuing processing is performed on the plurality of pieces of first user information; the terminal device determines, based on the first encrypted information set and the first credential information set in a first set, target credential information and target user information that correspond to target user information of a user as a target verification set; and the terminal device provides the target verification set for a credential verification device.

Abstract: This application discloses a method used to remove a target blockchain node group of a first tenant from a channel. In the method, an execution node of a second tenant receives configuration information of the target blockchain node group of the first tenant which is sent by a management node, obtains channel configuration information of the channel from a consensus organization, and generates channel adjustment information based on the channel configuration information and the configuration information of the target blockchain node group. The execution node of the second tenant sends the channel adjustment information to the consensus organization, and the consensus organization generates a block including the channel adjustment information. A blockchain node group of the second tenant obtains the block from the consensus organization, and adds the block to a blockchain stored in the second tenant.

Abstract: The present invention discloses a processing system and processing method for blocked microreactor. The processing system comprises an air intake device, a flushing device, a microreactor to be processed and a plasma processing device. One end of the microreactor to be processed is connected with the air intake device and the flushing device through a pipeline; the other end of the microreactor to be processed is connected with a waste liquid bottle through the pipeline; and the microreactor to be processed is arranged between electrodes of the plasma processing device. The present invention uses the effective reactivity of plasma and active free radicals in an excitation atmosphere to crack micro blockage in a micro channel in a short time. The method of the present invention has high flexibility and strong controllability, and can select plasma electrodes according to blocked regions to crack the blockage in a specific region.

Abstract: To provide a nitride semiconductor element having a better contact resistance reduction effect also in the case of a light emitting element containing AlGaN having a high Al composition. The nitride semiconductor element has a substrate 1, a first conductivity type first nitride semiconductor layer 2 formed on the substrate 1, and a first electrode layer 4 formed on the first nitride semiconductor layer 2. The first electrode layer 4 contains aluminum and nickel, and both aluminum and an alloy containing aluminum and nickel are present in a contact surface to the first nitride semiconductor layer 2 or in the vicinity of the contact surface.

Abstract: A laser diode (1) includes an AlN single crystal substrate (11), an n-type cladding layer (12) formed on the substrate and including a nitride semiconductor layer having n-type conductivity, a light-emitting layer (14) formed on the n-type cladding layer and including one or more quantum wells, a p-type cladding layer (20) formed on the light-emitting layer and including a nitride semiconductor layer having p-type conductivity, and a p-type contact layer (18) formed on the p-type cladding layer and including a nitride semiconductor that includes GaN. The p-type cladding layer includes a p-type longitudinal conduction layer (16) that includes AlsGa1?sN (0.3?s?1), has a composition gradient such that the Al composition s decreases with increased distance from the substrate, and has a film thickness of less than 0.5 ?m, and a p-type transverse conduction layer (17) that includes AltGa1?tN (0<t?1).

Abstract: Described herein is a system and remote server that may enable a user device to gain access to a secure physical area or physical resource. The remote server may generate, store, and send a first access token to a user device in response to a request to access the physical area or physical resource. The remote server can receive an authentication request from a universal access control device at the location of the physical area or physical resource. The authentication request can contain a second access token and location information of the user device. The remote server can verify the second access token by comparing it to the stored first access token and location information about the access control device. Upon authentication and verification, the user device may gain entry to the secure area.