Abstract: A plasma-activated gas disinfection device includes a plasma generating unit, a disinfection chamber, an air pump and a fluid control module, where the plasma generating unit works in a first working mode during a first time period, and generates a first plasma active gas in the first working mode; the plasma generating unit works in a second working mode during a second time period, and generates a second plasma active gas in the second working mode; and the first time period is before the second time period, and alternatively, the first time period is after the second time period, such that a disinfection object in the disinfection chamber is disinfected. The plasma generating unit in the present disclosure is a simple device, and only one discharge module is used for generating different plasma active gases.

Abstract: An internal combustion engine with an external circulation system and a working method thereof are provided. The internal combustion engine is externally connected to the external circulation system through an intake port and an exhaust port. The external circulation system is capable of operating in a circulating manner when the internal combustion engine is not running, a significant raise in intake temperature is achieved during intake heating or exhaust heating, thereby the cold start-up performance of the internal combustion engine is improved and harmful emissions during cold start-up is reduced, and a compression ignition working mode of a low compression ratio engine is facilitated to be achieved.

Abstract: The present disclosure provides a device for monitoring oil pressure in an oil cylinder of a diaphragm compressor, including a piston rod and a strain gauge circuit. The strain gauge circuit includes a strain gauge component and a bridge circuit connected, and the strain gauge component is arranged on the surface of the piston rod. A strain gauge component is noninvasively arranged on the piston rod of the diaphragm compressor to measure the load of the piston rod, such that the oil pressure can be measured indirectly, and thus the oil pressure of the diaphragm compressor can be measured nondestructively. Nondestructive and noninvasive monitoring of the diaphragm compressor is safe and reliable, and can achieve accurate monitoring of the oil pressure especially in high-pressure working conditions.

Abstract: A method of preparing biodegradable Zn—Mg—Bi zinc alloy includes: melting magnesium under an inert atmosphere to obtain a magnesium melt; adding bismuth particles to the magnesium melt followed by reaction under stirring and heat preservation treatment to obtain a Mg—Bi alloy melt; allowing the Mg—Bi alloy melt to stand in a furnace; subjecting the Mg—Bi alloy melt to refining, slagging-off, casting and demoulding to obtain Mg-50 wt. % Bi alloy ingot; melting zinc to obtain a zinc melt; adding the Mg-50 wt. % Bi alloy ingot and pure magnesium or pure bismuth followed by heating to a preset temperature, stirring and heat preservation to obtain a Zn—Mg—Bi alloy melt; allowing the Zn—Mg—Bi alloy melt to stand in a furnace followed by refining, slagging-off, casting and demoulding to obtain the biodegradable Zn—Mg—Bi zinc alloy.

Abstract: A three-dimensional graphene antenna includes a three-dimensional graphene radiation layer, a dielectric substrate, a metal layer and a feeder line. The three-dimensional graphene radiation layer is made from porous three-dimensional graphene. A preparation method of the porous three-dimensional graphene includes steps of preparing pressurized solid particles by pressurizing gas into solid micro particles, mixing the pressurized solid particles with a graphene oxide dispersion liquid, removing liquid nitrogen under high pressure and low temperature such that the graphene oxide flakes enwrap around the pressurized solid particles, obtaining a graphene oxide block containing the pressurized solid particles by extruding, sublimating the pressurized solid particles in the graphene oxide block into gas, forming holes in the graphene oxide block and annealing, thereby obtaining the three-dimensional graphene.

Abstract: Provided are a data transmission method and apparatus and a storage medium. The method includes: in a case where a user equipment (UE) determines that the UE is incapable of simultaneously transmitting uplink (UL) traffic and sidelink (SL) traffic, comparing a priority of a UL channel with a priority of an SL channel, and transmitting traffic according to a comparison result.

Abstract: The present invention relates to a cell differentiation medium composition, a high secretion insulin-producing cells and a preparation method thereof. The high secretion insulin-producing cells obtained by using the cell differentiation medium composition to induce stem cell differentiated under specific conditions can secrete a large amount of insulin in a short time, and when the high-secreting insulin-producing cells are transplanted into the human body, they are not easy to be swallowed by macrophages, which can improve the survival rate of the insulin-producing cells and prolong the time of insulin secretion thereby.

Abstract: A cyclical salinity-gradient power generating system based on phase change materials and solar photothermal conversion is provided. The system comprises a solution supplying device, a power generating device and a power output device. The solution supplying device provides seawater with high and low concentration as salinity-gradient energy source of the power generating device; the power generating device implements day-and-night cyclical salinity-gradient power generation; the power output device stores electricity, part of which is used as providing power for the pumps inside the system and part of which is used as system output. A cyclical salinity-gradient power generating method based on phase change materials and solar photothermal conversion is also provided.

Abstract: The disclosure discloses a device and method for recovering lithium from lithium-containing mother liquor in the process of preparing lithium carbonate. The preparation of sodium carbonate solution using the mother liquor produced during lithium carbonate rinsing can recover part of lithium, reduce the water amount required for preparing sodium carbonate and decrease the solvent consumption. The mother liquor generated from lithium precipitation reaction is divided into two parts. One directly flows into the lithium chloride refining unit and mixes with the lithium chloride feed liquor. Carbonate and hydroxide present in this part of lithium-precipitation mother liquor, which can deeply remove the calcium and magnesium ions in the lithium chloride feed liquor, for refining the lithium chloride feed liquor, and removing impurities and recovering lithium from the primary lithium-precipitation mother liquor.

Abstract: The present disclosure discloses a computing apparatus, a method for processing data using the computing apparatus, and related products. The computing apparatus is included in a combined processing apparatus. The combined processing apparatus further includes an interface apparatus and other processing apparatus. The computing apparatus interacts with other processing apparatus to jointly complete a user specified computation operation. The combined processing apparatus further includes a storage apparatus. The storage apparatus is connected to the computing apparatus and other processing apparatus, respectively. The storage apparatus is used to store data of the computing apparatus and other processing apparatus. The scheme of the present disclosure achieves task slicing on a single core or multiple cores in the convolution operation, which improves the computational efficiency.

Abstract: The disclosure discloses a Lamb wave phased array focus-imaging method based on a frequency response function. In the method, a piezoelectric sensor array is arranged on a surface of a tested structure, the frequency response function of an excitation and acquisition pair formed by an excitation array element and an acquisition array element is calculated according to a full-band response signal, and a dispersion pre-compensation signal is constructed; the dispersion pre-compensation signal and the frequency response function are multiplied in a frequency domain to obtain a frequency domain pre-compensation response signal; and according to a distance from the acquisition array element to a focal point at the coordinates, the dispersion of the frequency domain pre-compensation response signal is post-compensated, so as to obtain a frequency domain dispersion post-compensation signal until all sensor excitation and acquisition pairs are traversed.

Abstract: In a rotating magnetic field-variable pyramid energy cabin, shielding plate permanent magnets are disposed on inner surfaces of three triangular shielding plates forming a pyramid shape, to form a stable magnetic field in the triangular shielding plates. A top rotating magnet is disposed at a top of the triangular shielding plates. A bottom rotating magnet is disposed below a seat. The magnetic field in the triangular shielding plates is rotated, to enable a vortex in turbulence of magnetic lines of force to generate a torsion field. The torque of the torsion field changes the spin states of electrons and atomic cores in a hypoxic microfield in the body of a patient, to arrange the electrons and atomic cores in a uniform magnetic field direction. The magnetic actuation of the electrons and atomic cores can make the microfield environment serialized and orderly and increase the negentropy.

Abstract: The present disclosure provides a data processing method, a device, a computer apparatus and a storage medium, wherein the method includes: in response to a target disk receiving at least one write request within a preset time period, determining a size threshold value for classifying a data update type according to a size of write data respectively indicated by each write request; determining a data update type corresponding to each write request according to a size of each write request and the size threshold value; dividing write data of the write request to obtain a data block according to a preset data block size, and caching the data block in a cache region of the target disk corresponding to the data update type, the target disk has multiple types of cache regions configured therein, different cache regions are configured to support caching of data with different update frequencies.

Abstract: Provided is a recombinant interleukin-15 variant, wherein one or more amino acid residues are added, deleted and substituted at the end of an amino acid sequence of a wild type interleukin-15. Thus, the carboxyl terminal of interleukin-15 forms an amphipathic alpha helix structure, and the carboxyl terminal of the interleukin-15 variant has a more stable structure than the wild type interleukin-15, so that the interleukin-15 variant can be highly expressed in Escherichia coli, and is easier to be separated and purified. The expression quantity of the interleukin-15 variant is 10-20 times that of the wild type interleukin-15.

Abstract: The present disclosure discloses a water-soluble ynamide coupling reagent and a method for using the water-soluble ynamide coupling reagent in the synthesis of amide, polypeptide, ester and thioester compound. The ynamide coupling reagent has the structure represented by the following formula (I): and in the formula (I), R is one selected from the group consisting of methylsulfonyl, benzenesulfonyl, p-toluenesulfonyl, trifluoroacetyl and other electron withdrawing groups.

Abstract: A cryogenic propellant rocket engine, a flowmeter calibration system and method for the cryogenic propellant rocket engine have been provided. The flowmeter calibration system for the cryogenic propellant rocket engine includes a container filling unit, a container, a supply pipeline, a weighing unit, a quick recovery container, a weighing and filling recovery unit and a recovery unit which are sequentially connected; the container filling unit is configured to connect a tank wagon with the container; and the supply pipeline includes a temperature sensor and a pressure sensor, as well as a first isolation valve, a reference flowmeter, a calibration flow adjusting manual valve, a vertical main pipe and N circumferentially and uniformly distributed horizontal pipes which are sequentially connected by a pipeline.

Abstract: An EBM variable-direction formation dynamic slicing method in cooperation with an 840D digital control system includes: creating a vertex array object, adjusting a projection matrix to a slice height, outputting a binary image of a two-dimensional cross-section; obtaining, by means of two-dimensional contour extraction, data of a contour line from the binary image, outputting coordinates of a closed contour, and connecting all adjacent coordinates into a straight line to form a closed curve; when a triangle tolerance is 1, dividing contour data into a straight line part and a curve part by taking a starting point of small straight lines with an angle of 140° therebetween as a dividing point, removing adjacent points, repeated points and internal points of a same straight line, and performing segmentation fitting on curve parts of the slice data, and then performing dynamic slicing through the 840D numerical control system.

Abstract: Provided are a data transmission method and apparatus, a data transmission method and apparatus. The method includes: acquiring predefined information; determining, according to the predefined information, whether to perform a listen-before-talk (LBT) mechanism before transmission; and upon the predefined information carrying LBT indication information, performing the LBT mechanism before a transmission device performs the transmission; or upon the predefined information not carrying the LBT indication information, not performing the LBT mechanism before the transmission device performs transmission. For one transmission device, a relationship between a transmit beam and a receive beam includes: the receive beam being the same as the transmit beam; or the receive beam being different from the transmit beam.

Abstract: A method is for positioning a center of a V-type notch of a wafer. The method includes: determining, based on collected edge data of a V-type notch of a wafer, a center of a concentric circle corresponding to edges of the V-type notch; and judging, based on a position relation between the center and a set reference scale line, whether the V-type notch is at a preset target center position. The method also includes determining, based on the position relation between the center and the set reference scale line, a rotation direction and rotation angle of the wafer when the V-type notch is out of the preset target center position; and driving, according to the rotation direction and rotation angle of the wafer, the wafer to rotate until the V-type notch is rotated to the preset target center position.

Abstract: The disclosure discloses a magnetic bias active suppression method and system of a hybrid distribution transformer, whether the HDT is closed or not is judged based on the grid-side current, and accordingly smooth switching of the two sets of control strategies is achieved; excitation currents of an HDT main transformer and an isolation transformer are calculated based on a magnetic potential balance principle, and nonlinear feedback is performed, and the excitation currents are superposed after an original control instruction of an HDT converter, so that magnetic bias suppression is realized on the basis of ensuring an HDT grid-side current and load voltage control function. According to the system, a complex and expensive iron core magnetic flux sensor does not need to be additionally arranged, and the DC magnetic bias of the HDT under any working condition can be eliminated while the basic control function of the HDT is not affected.