Abstract: A transaction method and a node design in a blockchain system, where a client initiates a transaction using a Structured Query Language (SQL) write command including transaction data or queries transaction data using an SQL query command. A node parses an SQL command, executes a simulated transaction, and checks block data based on a transaction result of the simulated transaction after obtaining the block data. After the check succeeds, the node converts the block data into an SQL write command that writes the block data, thereby writing the block data to a relational database.

Abstract: The present disclosure provides a standby control signal generation circuit, including: an amplification sub-circuit connected with an input terminal of the standby control signal generation circuit and configured to receive a video signal and amplify the video signal; an XOR sub-circuit connected with the amplification sub-circuit and configured to perform an XOR operation on the amplified video signal and a ground signal; and an adjustment sub-circuit connected with the XOR sub-circuit and configured to perform a proportional adjustment on an amplitude of an output signal of the XOR sub-circuit to generate a standby control signal. The present disclosure further provides a display driving device, a display driving method and a display apparatus.

Abstract: A method of Sabbath mode in an air conditioning unit includes receiving, at a controller of the air conditioning unit, a temperature signal from a temperature sensor, while in the Sabbath mode. Then determining that the temperature signal is one of above or below a threshold value, while in the Sabbath mode. Followed by adjusting, with the controller of the air conditioning unit, operation of a compressor in the air conditioning unit, while in the Sabbath mode.

Abstract: A wall mountable sensor module includes a housing defining an internal space that is segmented into a first internal space and a second internal space. The first internal space defines an air channel that extends from an air inlet to an air outlet. Two or more sensors are configured to be exposed to the air flow channel. A first sensor is configured to detect a first air parameter and a second sensor is configured to detect a second different air parameter, wherein the second sensor is situated downstream of the first sensor in the air flow channel. The sensor module includes a fan housed by the housing, the fan configured to cause an airflow to flow in through the air inlet, through the air flow channel thereby exposing each of the sensors to the airflow, and out through the air outlet.

Abstract: Embodiments of the present disclosure provide three-dimensional (3D) printing methods, systems, and devices for target objects, and relate to a field of image data processing technology. The method includes performing a layering process to a 3D model of a target object and designing a printing path sequence, after each layer of the print is completed, according to a current layer 3D model and point cloud data of a single-layer 3D model corresponding to the current layer 3D model, performing the inspection of a height difference, a horizontal dimension difference and a void region in the printing, and according to the inspection result, performing timely feedback and adjustment, which can not only improve the professionalism, stability and efficiency of the printing, but also improve the similarity between the printed physical object and the target object, resulting in achieving a more accurate 3D printing.

Abstract: A lithium-sulfur battery includes a substrate; a sulfur cathode disposed on the substrate; a coating layer disposed on the cathode; a first interlayer disposed on the coating layer; a solid-state electrolyte disposed on the first interlayer; a second interlayer disposed on the electrolyte; and a lithium anode disposed on the second interlayer, such that the coating layer is further disposed within pores of the cathode.

Abstract: A data processing method includes: receiving a connection test packet transmitted by a first client; determining an access address of a second client contained in the connection test packet, and storing the access address of the second client; and transmitting, when a first address storage notification message transmitted by a second gateway is received while receiving a connection data packet transmitted by the first client to the second client, the connection data packet to the second client through the second gateway, so as to establish a communication connection between the first client and the second client according to the connection data packet.

Abstract: A method and apparatus for switching of multicast and broadcast service between multicast and unicast in a wireless communication system is described. A CU-CP establishes a connection with a wireless device for a Multicast and/or Broadcast Service (MBS). A CU-CP receives, from the CU-UP, a first message including a retransmission information on data transmission related to the MBS. A CU-CP determines whether to perform a switch of the first transmission to a second transmission for the MBS based on the retransmission information.

Abstract: A multi-channel alkaline hydrogen production system is disclosed. Using liquid outlets of a hydrogen alkali treatment unit and an oxygen alkali treatment unit, a circulating alkaline liquid is outputted to an alkaline liquid circulating pump and a controllable channel, and then the circulating alkaline liquid is returned to the negative electrode of an electrolyzer; Thus, a controller can control the amount of produced hydrogen according to the measured current of the electrolyzer, then calculates a corresponding alkaline liquid circulation volume reference value according to the amount of produced hydrogen, and according to the alkaline liquid circulation volume reference value, adjusts the circulation amount of the alkaline liquid of the multi-channel alkaline hydrogen production system and changes the gas purity of the multi-channel alkaline hydrogen production system by controlling the working states of the controllable channels on the two ends of the alkaline liquid circulating pump.

Abstract: In described examples, a boost converter includes an inductor, a voltage input, a current regulator, an intermediate node, a transistor, and a regulation circuit. The inductor has first and second terminals. The voltage input provides an input voltage, and is coupled to the first inductor terminal. The current regulator has current regulator input and output. The current regulator input is coupled to the second inductor terminal. The current regulator allows current to flow from the current regulator input to the current regulator output, and not vice versa. The intermediate node provides a node voltage. The transistor includes a source, a drain, and a gate. The drain is coupled to the current regulator output via the intermediate node. The regulation circuit includes a first regulation input coupled to receive the input voltage, a second regulation input coupled to the intermediate node, and a regulation output coupled to the gate.

Abstract: A liquid crystal handwriting board is provided. The liquid crystal handwriting board includes a first substrate and a second substrate that are disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate; wherein the first substrate includes: a first base substrate, and a transistor and a pixel electrode disposed at a side, proximal to the second substrate, of the first base substrate, the transistor being electrically connected to the pixel electrode; wherein the transistor includes a channel region, wherein a ratio of an area of the channel region to an on-current of the transistor is greater than a ratio of an area of a channel region of a reference transistor to an on-current of the reference transistor.

Abstract: The present disclosure provides a display panel and a display apparatus.

Abstract: An air purifier includes a ventilation cover, a filtering component, and a sterilization component. The ventilation cover has an air inlet and an air outlet. The filtering component is fixed at the air outlet. The sterilization component is disposed between the air inlet and the air outlet. An air ventilation device may include the air purifier.

Abstract: The present application relates to a scanned data processing method, an apparatus, a device, and a medium. The method includes obtaining raw scanned data by scanning a current scanning area of a target object, acquiring non-planar target scanned data from the raw scanned data, and performing splicing on the target scanned data with historical scanned data and obtaining target spliced data. The present application may ensure smoothness and accuracy of the splicing.

Abstract: The present invention relates to compositions comprising 2,3,3,3-tetrafluoropropene, an additional refrigerant selected from the group consisting of HFC-32, HFC-125, HFC-134a, HFC-152a, E-HFO-1132 and CO2, at least one of at least one inhibitor, and at least one gas component, wherein the compositions are resistant to polymerization.

Abstract: In one aspect, an indirect heat exchanger comprising a plurality of fins having openings and a plurality of tubes connecting the fins. The indirect heat exchanger has spacings between the fins that permit a first fluid to flow therethrough. The fins have outer portions outward of the tubes to be contacted by the first fluid as the first fluid flows through the spacings. The tubes have interiors aligned with the openings of the fins to permit a second fluid to flow through the tubes and the openings of the fins. The fins have inner portions extending about the openings to be contacted by the second fluid. The fins are configured to transfer heat between the first fluid and the second fluid via direct contact between the outer portions of the fins and the first fluid and direct contact between the inner portions of the fins and the second fluid.

Abstract: Disclosed are compositions comprising tetrafluoropropene (HFO-1234yf and/or HFO-1234ze) and hexafluorobutene. Such compositions are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.

Abstract: The present disclosure provides an anode material and a battery, the anode material includes graphite, pores are formed at the surface of and/or inside the graphite, the anode material has a pore volume of V cm3/kg, a true density of D g/cm3, a specific surface area is S m2/g, a degree of graphitization is G %, wherein, 0.7?V*S/D?3.95, and 89?G?93. The anode material and the battery according to the present disclosure can improve the rate performance and the cycle performance of the graphite anode material under a high rate current.