Abstract: Techniques for storing health data can include a multi-node data structure. A data node, a category node, and an institution node of a multi-node data structure can be generated in accordance with a configuration file. The data node can include health data and can be identified by a first unique data identifier and encrypted using a first cryptographic key. The category node can include the first unique data identifier and the first cryptographic key. The category node can be identified by a second unique data identifier and encrypted using a second cryptographic key. The institution node can include the second unique data identifier and the second cryptographic key. The institution node can be identified by a third unique data identifier and encrypted using a third cryptographic key. The data node, the category node, and the institution node can be shared with a service provider.

Abstract: A schema is generated to establish a connection between user devices and one or more patient record servers. Generating a schema can include receiving configuration information associated with a patient record gateway, wherein the patient record gateway is associated with one or more patient record servers configured for storing electronic health records for a plurality of patients. Generating a schema can include defining, based at least in part on the configuration information, a schema configured to enable user devices to retrieve, via the patient record gateway, electronic health records from the one or more patient record servers. A schema can be requested by a user device. The schema can be sent to a user device to establish a connection with the one or more patient record servers.

Abstract: A underactuated system robot includes a vehicle wheel portion and a base portion coupled to the vehicle wheel portion. A loaded object is placed on the base portion. The method includes: determining status information of a loaded object on a base portion; and controlling at least one of the base portion and a vehicle wheel portion to move according to the status information, so as to prevent the loaded object from falling from the base portion. In the embodiments, the base portion and/or the vehicle wheel portion can be controlled to move according to the status information of the loaded object on the base portion, to prevent the loaded object from falling from the base portion, thereby improving the stability of the underactuated system robot.

Abstract: A user device may share encrypted health data with an electronic health record (EHR) system associated with a health institution. A unique data identifier that identifies a portion of the health data and a cryptographic key may be shared with the EHR system. The encrypted health may be shared with a service provider and a unique data identifier. To access the health data, the EHR system may query the service provider with the unique data identifier.

Abstract: An optical device and its fabrication method are provided. The method includes: providing a substrate including a coupling region; forming a first dielectric layer on the substrate; forming an initial waveguide groove in the first dielectric layer on the coupling region; forming a patterned layer on a surface of the first dielectric layer and in the initial waveguide groove, exposing at least a portion of a bottom of the initial waveguide groove; and using the patterned layer as a mask to etch the first dielectric layer, to form a waveguide structure on the substrate. The waveguide structure includes a waveguide end structure on the coupling region.

Abstract: A dual water-vessel flush structure and a pressure-assisted toilet flush system are disclosed. The dual water-vessel flush structure includes first and second vessels and a communicating pipe. The first vessel at an upper part thereof is provided with a water supplement hole and an air supplement hole. The second vessel at a lower part thereof is provided with a water outlet. The first and second vessels are mutually communicated at bottoms of laterals thereof through the communicating pipe. The pressure-assisted toilet flush system includes a dual water-vessel flush structure, a water-air supplement mechanism, a water drainage mechanism, and a control mechanism. The water supplement hole and the air supplement hole both lead to the first vessel through the water-air supplement mechanism. The water drainage mechanism is configured at the water outlet and interacts with the control mechanism.

Abstract: A noise reduction structure for a toilet tank includes a pressure-assisted flush water tank, a fluid input device, a guide pipe, and a stop member. The fluid input device is disposed on a top of the pressure-assisted flush water tank. The fluid input device is configured to input a fluid having water and air to the pressure-assisted flush water tank. The guide pipe has an input end communicating with an output end of the fluid input device. The stop member includes a stop plate opposite to an output end of the guide pipe. After being stopped by the stop plate, the fluid spreads and flows toward an edge of the stop plate.

Abstract: Disclosed are a waist structure of a robot. The waist structure includes: a fixed platform, a connector, a movable platform, a load-carrying bearing and two motors arranged on the fixed platform, and two drive assemblies. The connector includes first and second ends facing away from each other; the first end is provided with a yaw shaft connected to an inner ring of the load-carrying bearing; and the second end is provided with a pitch shaft rotatably connected to the movable platform. Each drive assembly corresponds to one motor, and the drive assemblies are connected to the movable platform and the corresponding motors. The motors can actuate the drive assemblies to drive the movable platform to rotate relative to the connector in an axial direction of the pitch shaft and the connector to rotate relative to the fixed platform in an axial direction of the yaw shaft.

Abstract: A heat insulation and preservation composite board includes a first panel layer and a heat insulation and preservation layer. The heat insulation and preservation layer and the first panel layer are integrally formed. The first panel layer is a fiber-reinforced resin-based composite sheet, a metal plate, a cement plate, a calcium silicate plate, or a gypsum plate. The heat insulation and preservation layer is a fiber-reinforced aerogel felt. A preparation method of the heat insulation and preservation composite board includes: (1) laying the fiber-reinforced aerogel felt flat; (2) laying the first panel layer flat on the upper surface of the fiber-reinforced aerogel felt; (3) performing a hot-press molding process to obtain the heat insulation and preservation composite board.

Abstract: The disclosure relates to a sandwich composite board and a preparation method thereof. The sandwich composite board includes, from top to bottom, an upper panel layer, a core material layer, and a lower panel layer, wherein the upper panel layer and the lower panel layer are glass or fiber reinforced resin-based composite sheets; and the core material layer is composed of an aerogel, a resin, and an expandable microsphere foaming agent. Method (1) includes: heating and melting the resin to obtain slurry A, cooling the same, adding the aerogel and the expandable microsphere foaming agent thereto, and uniformly mixing the same to obtain slurry B, then flat-laying the lower panel layer, coating or printing with the slurry B, then laying the upper panel layer and hot press molding the same.

Abstract: The present disclosure provides a preparation method of an aluminum silicate fiber-reinforced aerogel felt, including the following steps: mixing orthosilicate, ethanol, and water evenly, adding an NH4F solution and ammonia water successively, and stirring evenly to obtain a silica sol; winding an aluminum silicate fiber felt into a roll and mounting on a rotatable central shaft of a impregnation reaction kettle; where a plurality of injection holes are equidistantly provided on a surface of the reaction kettle; the central shaft of the reaction kettle drives the aluminum silicate fiber felt to rotate and slowly inject the silica sol into the surface of the fiber felt through the injection holes to conduct the impregnation; allowing the fiber felt-gel composite to stand to conduct aging; placing the aged fiber felt-gel composite in absolute ethanol to conduct solvent replacement to remove moisture; and drying to obtain the aluminum silicate fiber-reinforced aerogel felt.

Abstract: A drainage control device includes a main body, an upper cover, a lower cover, a pressure relief cover, a membrane, and a return member. The main body has a water filling trough, a drainage trough, and a water passage trough. A drainage chamber having a drainage port is defined between the upper cover and the drainage trough. A water filling chamber has a water filling port is defined between the lower cover and the water filling trough. The pressure relief cover and the main body hold a periphery of the membrane. A water passage chamber is defined between the membrane and the water passage trough. A back-pressure chamber having a drain port is defined between the membrane and the pressure relief cover. The membrane is configured to open or close a junction of the water passage chamber and the drainage chamber. The membrane is returned by the return member.

Abstract: A drainage system for a pressure-assisted flush water tank includes a tank main body and a drainage structure. The drainage structure includes an accommodating chamber and a membrane. The accommodating chamber has a drain outlet, a water inlet, and a drainpipe. The membrane partitions the accommodating chamber into a back-pressure chamber and a drainage chamber and is provided with a supplement hole that communicates the back-pressure chamber with the drainage chamber. The drain outlet is communicated with the back-pressure chamber, while the water inlet and the drainpipe are both communicated with the drainage chamber. The tank main body defines therein a storage chamber communicated with the water inlet. The membrane moves toward or departs from the drainpipe as a pressure in the back-pressure chamber varies so as to close or open the drainpipe.

Abstract: This application relates to the field of robot control, and provides a motion state control method and apparatus, a device, and a readable storage medium. The method includes the following steps: Step 301: Acquire basic data and motion state data, the basic data being used for representing a structural feature of a wheeled robot, and the motion state data being used for representing a motion feature of the wheeled robot. Step 302: Determine a state matrix of the wheeled robot based on the basic data and the motion state data, the state matrix being related to an interference parameter of the wheeled robot, the interference parameter corresponding to a balance error of the wheeled robot. Step 303: Determine, based on the state matrix, a torque for controlling the wheeled robot. Step 304: Control, by using the torque, the wheeled robot to be in a standstill state.

Abstract: A schema is generated to establish a connection between user devices and one or more patient record servers. Generating a schema can include receiving configuration information associated with a patient record gateway, wherein the patient record gateway is associated with one or more patient record servers configured for storing electronic health records for a plurality of patients. Generating a schema can include defining, based at least in part on the configuration information, a schema configured to enable user devices to retrieve, via the patient record gateway, electronic health records from the one or more patient record servers. A schema can be requested by a user device. The schema can be sent to a user device to establish a connection with the one or more patient record servers.

Abstract: A method includes: obtaining current motion state data of the wheel-legged robot, the current motion state data representing motion features of the wheel-legged robot, inputting the current motion state data into a nonlinear controller to obtain a target joint angular acceleration reference value of a target robot joint of the wheel-legged robot, and inputting the target joint angular acceleration reference value into a whole-body dynamics controller to output a joint torque for controlling the wheel-legged robot to perform a control task.

Abstract: A bilateral teleoperation system includes: a primary-end operation platform and a secondary-end operation platform. The primary-end operation platform includes: a primary-end support, primary-end mechanical arms, a mechanical hand control assembly, and a first controller, a root end of the primary-end mechanical arm being arranged on the primary-end support, and a tail end of the primary-end mechanical arm being connected to the mechanical hand control assembly.

Abstract: A manipulator is provided. The manipulator includes at least two mechanical fingers. Each of the at least two mechanical fingers includes a first finger segment, a second finger segment, and a third finger segment, a bottom portion of the third finger segment of the respective mechanical finger is movably connected to a top portion of the second finger segment of the respective mechanical finger, and a bottom portion of the second finger segment of the respective mechanical finger is movably connected to a top portion of the first finger segment of the respective mechanical finger. The manipulator further includes a finger driving assembly for each of the at least two mechanical fingers. The finger driving assembly for each of the at least two mechanical fingers includes a plurality of motors that are configured to drive a different one of the finger segments of the respective mechanical finger.

Abstract: A patient record gateway of an electronic health record system can be validated using a conformance statement that defines capabilities and characteristics of patient record servers associated with the gateway. Part of validating the patient record gateway includes performing a configuration test of the patient record gateway using the conformance statement.

Abstract: A mechanical leg comprises a frame, a retractable member, a wheel, an extension and retraction driving member, a travel driving member, an auxiliary leg, and an auxiliary wheel. The extension and retraction driving member is located on a side of the frame. The retractable member is connected to the extension and retraction driving member. The wheel is connected to the retractable member. The wheel is further connected to the travel driving member. A first end of the auxiliary leg is connected to the auxiliary wheel, and a second end of the auxiliary leg is located on the frame. The retractable member extends under the driving of the extension and retraction driving member to drive the wheel to jump. The wheel is driven by the travel driving member to move. When the auxiliary wheel contacts the ground, the mechanical leg moves with the rolling of the wheel and the auxiliary wheel.