Abstract: Disclosed are lithium-containing precursor material and a preparation method therefor, and lithium-ion cathode material, where the lithium-containing precursor material has a chemical formula of LixMyD, M is at least one of Ni, Co, Mn, Al, or Mg, and D is one or more of CO32?, OH?, and C2O42?; a 2? diffraction angle of the lithium-containing precursor material has characteristic peaks in an XRD pattern of a Cu target K?1, and the characteristic peaks P1 and P2 are 20°-22° and 31°-33°, respectively, and an intensity ratio of the peaks (p1/p2) is 0<(p1/p2)?10. Lithium and other metal elements in the lithium-containing precursor material achieve bulk molecular-level dispersion, such that neither batching nor mixing is required, ion migration resistance becomes small, sintering temperature is lowered, and the production costs are reduced. Moreover, lithium ion and metal salt have co-precipitation reaction, thereby reducing wastewater discharge by more than 30%.

Abstract: Disclosed is a manufacturing method for a tinplate, relating to the technical field of steel plate manufacturing. With regard to the manufacturing method for a tinplate: in the step of flattening a base plate, double stands are used for flattening, a first stand working roller have a surface roughness value Ra of 1.6-1.7 ?m and a rolling force of 5000-6000 kN, and a second stand working roller have a surface roughness value Ra of 0.5-0.6 ?m and a rolling force of 3000-4000 kN; in the step of electroplating the base plate, an electroplating solution have a Sn2+ concentration of 14-19 g/L; and in the step of passivating the base plate, a passivation solution have a temperature of 41-43° C., a pH value of 4.4-4.6, and a concentration of 16-18 g/L, the passivation electric charge density being 120-180 C/m2.

Abstract: Provided in the present disclosure are IL-15 variants, IL-15/IL-15R?-Fc fusion proteins comprising the IL-15 variants and IL-15/IL-15R? fusion protein comprising the IL-15 variants the methods of producing the same and the uses thereof. The IL-15 variants, fusion proteins, and polypeptide complexes of the disclosure can be used as a potent agent for the treatment of cancers and infectious diseases.

Abstract: A control method for a conveyor device, which is applicable to a control system comprising a control terminal and one or more control nodes, each of the control nodes is in communication connection with the control terminal. The method includes controlling, by the control node that receives an operation signal, a movable device associated with the control node to reach a conveyor device to be controlled, in response to the operation signal sent by a control terminal; and determining whether to control the conveyor device to be controlled according to the indication of the operation signal, based on sensed data from a sensing device regarding the condition of an object to be conveyed on the conveyor device to be controlled.

Abstract: Provided is a molecule comprising an Fc variant. Compared with a molecule comprising an IgG wild-type Fc, the molecule is resistant to the degradation of an immunoglobulin enzyme, and the molecule comprises a human IgG Fc region having a mutation, the mutation being one or more substitutions or deletions at a G237 position (EU numbering), and the substitution preferably being G237A. Further provided are a nucleic acid encoding the molecule, a vector comprising the nucleic acid and a host cell, and a method for preparing the molecule.

Abstract: A gas supply system includes a loading/unloading stage including a cradle loader where a cradle loaded with a gas container is loaded, a test buffer chamber is configured to test the gas container, and a loading/unloading robot configured to transfer the gas container between the cradle and the test buffer chamber. A gas supply stage includes a storage queue configured to temporarily store the gas container, a gas supply cabinet where the gas container is mounted, and a transfer robot configured to transfer the gas container between the test buffer chamber and the storage queue and between the storage queue and the gas supply cabinet.

Abstract: The invention discloses an AlCrVTiSiON nano-gradient coating with surface pre-oxidation and a preparation method thereof, belonging to the technical field of coatings. The AlCrVTiSiON nano gradient coating is prepared by arc ion plating technology, wherein the target materials are selected from metal Cr target, V target, AlCrSi target and AlTiSi target. In order to further improve the heat resistance of the coating and increase the cutting amount during service, the AlCrVTiSiON nano-gradient coating with O element content increasing from inside to outside was formed. The prepared coating has good heat resistance, which is suitable for high-speed cutting and improves processing efficiency.

Abstract: Provided is a solvent extraction method for a petroleum sludge/oil sand assisted by a particle dispersant, including: mixing a solution dissolved with the particle dispersant and the petroleum sludge/oil sand to obtain a mixture, and subjecting the mixture to solvent extraction and separation to obtain a solid phase particle and an oil-carrying liquid phase; wherein the particle dispersant includes one compound selected from the group consisting of a polyoxyethylene alkyl ether carboxylic acid, a polyoxypropylene polyoxyethylene alkyl ether carboxylic acid, and dodecylbenzene sulfonic acid; and a solvent used in the solution dissolved with the particle dispersant comprises one or more selected from the group consisting of cycloalkane and toluene.

Abstract: Disclosed herein are a Cas12i polypeptide and use thereof in a CRISPR-Cas system. Specifically disclosed herein are a Cas12i polypeptide, a Cas12i fusion polypeptide, a guide RNA, a complex formed by the Cas12i polypeptide or fusion polypeptide with the guide RNA, a nucleic acid, a vector, a vector system, a delivery system, a kit, a composition, and a method for modifying a nucleic acid using the components described above.

Abstract: A side sliding door includes: a door panel; a door frame; a transmission assembly, including two sets of synchronous tape modules, the two sets of synchronous tape modules being arranged in parallel one above the other on the door frame; a synchronous drive module, the synchronous motion of the two sets of synchronous tape modules driving the door panel to perform a flat opening action in the horizontal direction. The synchronous tape modules each include a driving belt wheel, a driven belt wheel and a synchronous belt; the synchronous drive module includes a drive member, a driving shaft and a driven shaft; the two ends of the driving shaft are respectively connected to the two driving belt wheels, the two ends of the driven shaft are respectively connected to the two driven belt wheels, and the drive member drives the driving shaft to rotate.

Abstract: A friction stir tool cooling method is used for cooling a stirring pin and/or a shaft shoulder of a friction stir tool, it includes that the coolant is introduced into an inlet of a cooling channel, the cooling channel is provided inside the friction stir tool, and the inlet is provided on the side wall of the friction stir tool. The coolant flows downwards to the vicinity of the stirring pin and/or the shaft shoulder, the coolant turns upwards and flows out of the friction stir tool from an outlet. The outlet is provided on the side wall of the friction stir tool.

Abstract: A wall-mounted toilet system, comprising: a wall-mounted bracket (1) and an in-wall drain pipe (2); a toilet body (3), which is fixed to the wall-mounted bracket (1) and has a bowl (31) and a mounting cavity (32); and a drain device (4), which is connected to the toilet body (3), communicates with the in-wall drain pipe (2), and comprises a rotary drain pipe (41) arranged in the mounting cavity (32), wherein one end of the rotary drain pipe (41) communicates with the bowl (31), and is configured to rotate relative to the toilet body (3) between an initial position and a drain position, such that when the rotary drain pipe rotates to the initial position, a water seal is formed in the bowl (31); and when the rotary drain pipe rotates to the drain position, dirt in the bowl (31) is discharged into the in-wall drain pipe (2).

Abstract: A method for extracting harmonic response from offshore wind turbine structure, including: F1, continuously collecting its acceleration response under non-operating conditions, obtaining the acceleration response signal of the tower under only environmental load, and cropping all collected signals into signal segments with a length of L; F2, using Fourier transform to convert all signal segments from the time domain to the frequency domain, obtaining the frequency spectrum of the signal P; F3, according to the maximum rotational speed P, either designed or recorded by the SCADA system, determining the maximum harmonic response frequency Fmax=N×P, 1?N?12 to be extracted, and cropping the individual frequency spectrum into three segments P1, P2, P3, corresponding to frequency ranges of 0˜F1, F1˜F2, F2˜F3, where the selected frequency F1 is not less than Fmax; F4, cropping all frequency spectra according to F3 to form a frequency spectral dataset D without harmonic excitation effects.

Abstract: A shifter and a toilet, where the shifter includes an upper shifter body provided with an inlet for sewage to flow in, and a lower shifter body provided with an outlet for sewage to flow out. The lower shifter body is connected to the upper shifter body by a sliding connection structure, and the lower shifter body and the upper shifter body together define a length-adjustable sewage discharge flow channel. The sewage discharge flow channel enables the inlet to be communicated with the outlet.

Abstract: A control method includes obtaining, in real time during operation of a movable platform, data of a plurality of sensors located at one or more arm assemblies of the movable platform, performing real-time calibration using the data to obtain a calibration result that characterizes a relative pose between the plurality of sensors, and performing movement control on the movable platform according to the calibration result.

Abstract: Techniques for controlling a trajectory of a mud motor directional drill are disclosed. A system receives one or more inputs pertaining to constraints for a wellbore in a mud motor drilling operation. The system constructs, as a function of the one or more inputs, a discretized well depth horizon. One or more binary slide and rotate commands for controlling a directional drill within the wellbore is generated based on an analysis of the discretized well depth horizon. The system controls the directional drill according to the one or more binary slide and rotate commands.

Abstract: Parameter optimization method for nonlinear vibration model of complex device, comprising: 1) constructing various structures of complex device into tree structure, to form tree-shaped complex device model subsystem, and carrying out sign convention for dynamic analysis; 2) establishing complex device dynamic model to obtain dynamic relationships among all parts of complex device; 3) according to contact and collision conditions in advancing process of physical complex device, adding constraint relationships among parts in dynamic simulation software; 4) on basis of dynamic simulation software, establishing virtual prototype model of complex device, and determining target parameter and optimization target; 5) simulating vibration characteristics of complex device for different levels of pavement spectrums and different vehicle speeds; 6) adding required input point and output point for virtual prototype model; 7) on basis of optimization algorithm of numerical solution in small sample deep learning, obtaining

Abstract: A self-stabilizing integrally-molded pillar filling structure for underground mines is provided, belonging to the field of supporting structures, which includes an airbag, and the airbag is provided with a feed filling port and a gas inflation port; a telescopic bearing piece, and the telescopic bearing piece is fixedly provided on an inner surface of the airbag and is capable of expanding and contracting with volume change of an inner cavity of the airbag; and steel hoops, and the steel hoops are fixedly provided on an outer surface of the airbag.

Abstract: Disclosed in the present invention are a dynamic maximal clique enumeration device and method based on an FPGA with an HBM, the method including: the HBM stores a dynamic edge flow, a complete graph adjacency matrix, and candidate cliques; a matrix computing unit updates the complete graph adjacency matrix based on the dynamic edge flow, transmits the updated complete graph adjacency matrix to the HBM for storage, and determines header nodes, of which the corresponding candidate clique needs to be updated; a sequence computing unit constructs, according to the updated complete graph adjacency matrix and each header node to be updated, the sorted data set for reconstructing candidate cliques by data block sequencing; and an update computing unit executes, in parallel, an update task of the candidate clique corresponding to each header node to be updated based on the sorted data set, transmits the updated candidate cliques to the HBM for storage, and transmits the updated candidate cliques to the PC host to ext

Abstract: Hydrogen refueling station, hydrogen-powered vehicle, and hydrogen refueling system are provided. The hydrogen refueling system comprises a decomposition device, a transfer device, a storage device, and a recombination device; wherein the decomposition device is configured to decompose water into hydrogen and oxygen; the transfer device is configured to deliver the hydrogen into the storage device and to discharge the oxygen into an environment; the storage device is configured to store the hydrogen delivered from the transfer device; the recombination device is configured to receive the hydrogen from the storage device and the oxygen from the environment, the hydrogen and oxygen reacting in the recombination device to produce an electric current. The hydrogen refueling system adopts real-time hydrogen production and refueling, thereby eliminating the need to construct large hydrogen storage tanks, and the need for the long-distance transportation of the hydrogen.