Abstract: The present invention relates to the field of metal additive manufacturing, and disclosed thereby is a method for printing a structure of a combustion chamber liner by using GRCop-84 spherical powder. The method mainly comprises the following steps: (1) establishing a model; (2) configuring printing parameters; (3) performing laser printing; (4) performing annealing treatment; and (5) performing surface sandblasting. The present invention uses GRCop-84 spherical powder as the material of a combustion chamber liner model, and said material has excellent electrical conductivity, thermal expansion, strength, creep resistance, ductility, fatigue and like properties, and the comprehensive performance thereof is excellent, which significantly improves the performance of a rocket engine. In the GRCop-84 spherical powder material of the present invention, Cr and Nb form a Cr2Nb phase, and the volume fraction of a second phase is about 14%, same being evenly distributed in a copper matrix.

Abstract: A frequency combination corresponding to target data to be transmitted is determined. The frequency combination includes at least two different frequencies. Ultrasonic waves of frequencies in the frequency combination are sent within a predetermined duration.

Abstract: Disclosed are a M-cell targeting and pH-responsive starch-based carrier material, and a preparation method and application thereof. The starch-based carrier material has a molecular structure as follows, a molecular weight of 7.04×104 to 2.11×106 g/mol, a degree of substitution of carboxymethyl groups of 0.04 to 0.28, and a grafting amount of targeting peptide GRGDS of 0.01% to 1.12% (calculated based on the content of N). The material is not dissolved in water when protonated at pH (pH=1.2) of the stomach, and is slowly dissolved in water when deprotonated at pH (pH=6.8) of the small intestine, therefore it has good responsiveness to pH of the gastrointestinal tract. The material can efficiently encapsulate a positively charged active substance by means of electrostatic interaction, therefore it can protect the active substances from being destroyed and inactivated in the gastrointestinal tract.

Abstract: A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield.

Abstract: A method for designing a freeform concave grating imaging spectrometer includes selecting a series of light rays incident from different positions of a slit as characteristic light rays. The coordinates and normal directions of characteristic data points at intersections of the characteristic light rays and a surface of a freeform concave grating are calculated. A freeform surface shape of the freeform concave grating is obtained by fitting, so that an initial structure is obtained. Then the initial structure is optimized.

Abstract: A flexible displaying substrate includes: a first flexible film layer; a first barrier layer provided on a first surface of the first flexible film layer; a second barrier layer provided on one side of the first barrier layer further away from the first flexible film layer; and a second flexible film layer is provided between the first barrier layer and the second barrier layer; wherein at least one of a surface of the first barrier layer further away from the first flexible film layer and a surface of the second barrier layer closer to the first flexible film layer is provided with a slot, and a first orthographic projection of the second flexible film layer on the first flexible film layer and a second orthographic projection of the slot on the first flexible film layer at least partially overlap.

Abstract: Disclosed are a display substrate, a display device, a manufacturing method and a repairing method. A capacitor structure in the display substrate includes a first electrode and a second electrode. The first electrode includes a first main body portion extending in a first direction, first branch portions extending in a second direction, and a first connection portion connecting the first branch portions to the first main body portion. The second electrode includes a second main body portion extending in the first direction, second branch portions extending in the second direction, and a second connection portion connecting the second branch portions to the second main body portion. One side of the first electrode having the first branch portions faces one side of the second electrode having the second branch portions, and each first branch portion and a corresponding second branch portion form a capacitor.

Abstract: The disclosure provides a method and a device used in node for wireless communication. The communication node first transmits first information, and then transmits a first radio signal; the first radio signal occupies a first time interval in time domain; the first information is used for indicating a target time length, the target time length is one candidate time length in a target candidate time length set; the first time interval belongs to a first time window, time domain resources in the first time window other than the first time interval are reserved as a gap by a transmitter of the first radio signal, and the target time length is equal to a difference value between the time length of the first time window and the time length of the first time interval. The disclosure improves resource utilization.

Abstract: A system is provided that includes: a first load balancing device cluster, the first load balancing device cluster includes a first load balancing device pool and a second load balancing device pool; at least one first switch respectively coupled with each load balancing device in the first load balancing device pool via a routing protocol link; and at least one second switch respectively coupled with each load balancing device in the second load balancing device pool via a routing protocol link, the at least one first switch and the at least one second switch are configured to be able to be connected with the Internet; and one of the first load balancing device pool and the second load balancing device pool is configured as a standby load balancing device pool of the other.

Abstract: An automatic traction device for a lower limb fracture osteosynthesis includes a chassis structure, a lower leg supporting structure and an upper leg supporting structure connected two by two. The automatic traction device further includes a tibia distal position adjusting device, for adjusting a position and an angle of a distal end of a tibia, on the lower leg supporting structure and close to the first end portion of the lower leg supporting structure; and a tibia proximal position adjusting device, for adjusting a position and an angle of a proximal end of a tibia, on the lower leg supporting structure and close to the second end portion of the lower leg supporting structure.

Abstract: A computer-implemented method includes assigning an auditor weight to each user of a plurality of users. A plurality of audit data is received from the plurality of users, where each audit data is associated with a respective user and includes a set of user ratings for an audit. Final ratings are generated for the audit, with a respective final rating for each item in the audit. Generating the final rating of a first item in the audit includes identifying, in the audit data, user ratings for the first item. The user ratings for the first item include a respective user rating of the first item from each user. Generating the final rating of a first item further includes calculating the final rating of the first item based on a weighted combination of the plurality of user ratings for the first item, according to the respective auditor weight of each user.

Abstract: A composition for producing a glass fiber, including the following components with corresponding percentage amounts by weight: SiO2: 57.4-60.9%; Al2O3: greater than 17% and less than or equal to 19.8%; MgO: greater than 9% and less than or equal to 12.8%; CaO: 6.4-11.8%; SrO: 0.1-1.5%; Na2O+K2O: 0.1-1.1%; Fe2O3: 0.05-1%; TiO2: lower than 0.8%; and SiO2+Al2O3: lower than or equal to 79.4%. The total weight percentage of the above components in the composition is greater than 99%. The weight percentage ratio of Al2O3+MgO to SiO2 is between 0.43 and 0.56, and the weight percentage ratio of CaO+MgO to SiO2+Al2O3 is greater than 0.205. The composition can significantly increase the glass modulus, effectively reduce the glass crystallization rate, secure a desirable temperature range (?T) for fiber formation and enhance the refinement of molten glass, thus making it particularly suitable for high performance glass fiber production with refractory-lined furnaces.

Abstract: Provided are antibodies that specifically recognize B7 homology 3 protein (B7-H3).

Abstract: The invention relates to the field of switches, and particularly provides a switch for a vehicle and a vehicle. The invention aims to solve the problem of an uneven gap between a switch and an interior trim panel of an existing vehicle. To this end, the vehicle according to the invention comprises a surface housing, the surface housing is provided with a groove, the switch is disposed in the groove, the switch comprises a pressing rod assembly, the pressing rod assembly comprises a rocking bar and a connecting piece, the rocking bar is rotatably connected to the connecting piece, and the connecting piece is fixedly connected to the groove. When the pressing rod assembly is installed, because no member for positioning the pressing rod assembly is available, the pressing rod assembly can be installed at any position in a transverse direction of the groove.

Abstract: The invention, which discloses a blockchain consensus method, apparatus and system, relates to the technical field of computers.

Abstract: A method and kit for preparing a high-throughput sequencing library based on nested multiplex PCR are provided. The method includes: amplifying a targeted region using a forward primer and a reverse primer, where the reverse primer includes a reverse specific sequence at a 3?-end and a first universal sequencing sequence at a 5?-end; purifying; and amplifying the purified product using a nested primer located downstream of the forward primer, a first tag primer, and a second universal primer, where the nested primer includes a second universal sequencing sequence at a 5?-end and a specific sequence at a 3?-end, a 3?-end sequence of the first tag primer is partially or completely the same as the first universal sequencing sequence, the first tag primer further includes a first tag sequence, and a 3?-end sequence of the second universal primer is partially or completely the same as the second universal sequencing sequence.

Abstract: The instant disclosure provides novel adenosine receptor antagonist compounds, compositions, methods of making and methods of using. In a further aspect, a method of treating a subject in need thereof, comprising administering a therapeutically effective amount of any one or more of the compounds described herein. In some embodiments, the subject has cancer and the method is a method of treating cancer.

Abstract: A displaying base plate includes a displaying region and a non-displaying region; the non-displaying region includes a substrate, and a first wiring unit, a first planarization part, at least one blocking wall, a second planarization part and a packaging layer located on the substrate; the first wiring unit is provided with a slot; the first planarization part and the blocking wall are provided on one side of the first wiring unit further away from the substrate; the first planarization part is closer to the displaying region than the blocking wall; orthographic projections of the first planarization part on the substrate and the blocking wall on the substrate do not intersect or overlap; the second planarization part is configured to at least fill and level up the slot in the first wiring unit that is located at the region between the first planarization part and the blocking wall.

Abstract: A control system and method for dry centrifugal granulation of liquid slag are provided. The control system includes a granulator cold-air control unit and a feeding unit. The granulator cold-air control unit includes a granulator, a rotating shaft, a motor, and a cold-air supply unit. The granulator is fixed to the motor; the cold-air supply unit includes a shaft cooling air channel and an annular cooling air channel; the shaft cooling air channel consists of an inner duct sleeve and a shaft sleeve; the annular cooling air channel consists of the inner duct sleeve and an outer duct sleeve arranged at periphery of the inner duct sleeve, which have different external diameters; the feeding unit includes a slag dropping pipe arranged above the granulator; a sliding gate is arranged at a lower section of the slag dropping pipe, and an accident diversion spout is equipped.

Abstract: A speed reducer, a power system, a straddle-type rail train, and a rail transport system are disclosed. The speed reducer includes: a box body; a speed-reducing mechanism, disposed in the box body; and a support shaft, a first end of the support shaft being supported on the box body, and a second end of the support shaft being connected to a high-speed end of the speed-reducing mechanism. The speed reducer according to the present disclosure achieves a more stable connection between a drive shaft and a speed-reducing mechanism and a more stable power transmission.