Abstract: The invention relates to the technical field of agricultural planting, in particular to a special controlled-release microbial fertilizer for peanuts in a continuous cropping field and a preparation method thereof. The fabric comprises an outer layer, a middle layer and an inner layer. Through a three-layer structure, the controlled-release fertilizer prepared by the disclosure can realize the fertilizer efficiency period of 50-60 days, and achieves the purpose of twice releases.

Abstract: A phase shifter, a preparation method thereof, and a phased array antenna. The phase shifter includes a substrate (5); two ground lines (1) located on the substrate (5); a signal line (2) located on the substrate (5) and between two ground lines (1), wherein there is a spacing between the signal line (2) and the ground line (1); a dielectric layer (3) located at a side of the signal line (2) and the ground lines (1) away from the substrate (5); at least one bridge (8) located at a side of the dielectric layer (3) away from the substrate (5), projections of the ground lines (1) and the signal line (2) on the substrate (5) are overlapped with a projection of the bridge (8) on the substrate (5), and there is a spacing between the bridge (8) and the dielectric layer (3).

Abstract: The phase shifter includes a substrate; a first wire and second wires arranged on a side of the substrate, wherein two opposite sides of the first wire are respectively provided with the second wires, and the first wire and the second wires are arranged in parallel and insulated from each other; a hydrophobic conductive part, which is arranged crosswise with the first wire and is insulated from the first wire, and at least one end of the hydrophobic conductive part is overlapped with the second wire at one side of the first wire, and is insulated from the second wire; and a hydrophilic part, wherein a minimum distance between an orthographic projection of the hydrophilic part on the substrate and an orthographic projection of the hydrophobic conductive part that does not overlap with the second wires, in a first direction, is less than or equal to a preset value.

Abstract: A cobalt-free positive electrode material, a preparation method therefor, and an application thereof. The preparation method comprises: mixing a lithium source, a cobalt-free precursor NixMny(OH)2, a nickel source, and a manganese source, performing primary sintering and secondary coating and sintering, and obtaining a cobalt-free positive electrode material, wherein the nickel source comprises nickel oxide, the manganese source comprises at least one among manganese dioxide, manganese(II,III) oxide, and manganese(II) oxide, and the molar ratio of the nickel source to the manganese source is x/y.

Abstract: Provided in the present disclosure are a fluorine-doped lithium positive electrode material, a preparation method therefore and the use thereof. The preparation method includes: step S1, mixing and reacting NH4F, LixNiyMnzO2 and water to obtain an intermediate product system, which includes fluorine-modified LixNiyMnzO2; and step S2, carrying out first calcination on the fluorine-modified LixNiyMnzO2 in a first oxygen-containing gas, so as to obtain a fluorine-doped lithium positive electrode material, wherein x=1 to 1.3, y=0.1 to 0.9, z=0.1 to 0.9, and x:(y+z)=1.4 to 1.6. Doping with fluorine in a positive electrode material results in the oxygen in the material being protected by fluorine, such that the primary efficiency of a lithium-ion battery is effectively improved.

Abstract: In a routing information management method, a primary route generation unit generates routing information related to a TCP packet, and the primary route generation unit sends the routing information and first identification information of the routing information to a database unit, where the first identification information is determined based on the TCP packet.

Abstract: A source-network-load-storage coordination dispatching method in a background of a coupling of renewable energy sources, including: taking an expectation of a minimum grid operating cost in a dispatching cycle as an objective function; generating an approximate value function of an output of a set for generating electricity from renewable energy sources and a user load, and constructing a source-network-load-storage coordination dispatching model with combination of the objective function; obtaining forecast data of the output of a set for generating electricity from renewable energy sources and the user load, and inputting the forecast data into the dispatching model for solving; performing iterative updating on the approximate value function, importing the approximate value function after the iterative updating into the dispatching model for iterative solving, and terminating an iterative process until a solving result satisfies a preset convergence condition; and using a solving result of a last iteration

Abstract: The present invention discloses a centroid adjustment device suitable for different types of loads, which belongs to the field of transportation and support technology, including an upper adjustment assembly, a connecting module, and a loading device. The connecting module includes connecting pieces and chain connection assemblies adjustable in length, both upper ends of the connecting pieces and the chain connection assemblies are respectively mounted on opposite sides of the centroid of the upper adjustment assembly and can be adjusted to move toward or away from each other at an upper end of the upper adjustment assembly, and both lower ends of the connecting pieces and the chain connection assemblies are respectively mounted on opposite sides of the centroid of the loading device.

Abstract: Provided in the present disclosure are a cobalt-free high-nickel positive electrode material, a preparation method therefor and use thereof. The cobalt-free high-nickel positive electrode material comprises a cobalt-free high-nickel matrix material and a coating layer coated on the cobalt-free high-nickel matrix material, wherein a chemical formula of the cobalt-free high-nickel matrix material is LimNixMnyO2, where 0.2?m?0.8, 0.4?x?0.95, and 0.05?y?0.6; and the coating layer is TiBzO1-z, where 0.2?z?0.8. The cobalt-free high-nickel positive electrode material obtained by means of modification using the coating layer TiBzO1-z has good acid resistance and wear resistance, high mechanical strength and excellent conductivity; and when the cobalt-free high-nickel positive electrode material is used for a lithium ion battery, the high-temperature cycling performance, capacity and initial efficiency of the lithium ion battery are greatly improved.

Abstract: The invention relates to the technical field of agricultural planting, in particular to a controlled-release bacterial fertilizer for peanuts and a preparation method of the special controlled-release bacterial fertilizer. The special controlled-release bacterial fertilizer is composed of an inner layer and an outer layer; after the outer layer is released completely, the inner-layer network structure gradually absorbs water and preserves moisture, and has good slow release and controlled release properties, thereby achieving the gradual release of the inner layer, high fertilizer utilization rate, exerting the efficacy of the microbial agent and facilitating the large-area promotion.

Abstract: The present invention relates to an ultra-high molecular weight polyethylene and a process for preparing the same, said ultra-high molecular weight polyethylene has a viscosity-average molecular weight of 150-1000×104 g/mol, a metal element content of 0-50 ppm, a bulk density of 0.30-0.55 g/cm3, a true density of 0.900-0.940 g/cm3, a melting point of 140-152° C., and a crystallinity of 40-75%, and said polyethylene satisfies at least one of condition (1) and condition (2): Condition (1): tensile elasticity modulus is greater than 250 MPa, preferably greater than 280 MPa, more preferably greater than 300 MPa, Condition (2): Young's modulus is greater than 300 MPa, preferably greater than 350 MPa. The ultra-high molecular weight polyethylene has high mechanical properties, high melting point, low metal element content and ash content, and the preparation process is simple, flexible and adjustable, and the ultra-high molecular weight ethylene copolymer has a high tensile elasticity module.

Abstract: Techniques and solutions are provided for searching for documents upstream, downstream, or both upstream and downstream of a given document, and providing information about relationships between documents in the results. To help users understand relationships between documents, different “voices” can be used in a result display, such as an “active voice” being used for an upstream search and a “passive voice” being used for a downstream search. If desired, results can be limited or filtered, such as limiting a search to a particular relationship type or types, or providing a limit to an amount of indirection between documents. Disclosed techniques can provide more useful information about a document flow, and can reduce computing resources used in generating such displays.

Abstract: The present disclosure provides a cobalt-free and nickel-free positive electrode material and a preparation method therefor, and a battery. The preparation method includes: preparing a cobalt-free and nickel-free matrix material, and mixing the cobalt-free and nickel-free matrix material, a lithium source, and a divalent manganese compound for reaction to obtain the cobalt-free and nickel-free positive electrode material. By adding the divalent manganese compound, the generation of lamellar LiMnO2 and spinel LiMn2O4 is inhibited, the generation of lamellar Li2MnO3 is promoted, and the cycle performance of the material is improved.

Abstract: The present invention relates to an ethylene polymer and a process for preparing the same, wherein the ethylene polymer has an average particle size of 50-3000 ?m, a bulk density of 0.28-0.55 g/cm3, a true density of 0.930-0.980 g/cm3, a melt index at a load of 2.16 Kg at 190° C. of 0.01-2500 g/10 min, a crystallinity of 30-90%, a melting point of 105-147° C., a comonomer molar insertion rate of 0.01-5 mol %, a weight-average molecular weight of 2×104 g/mol-40×104 g/mol, and a molecular weight distribution of 1.8-10. In the preparation process, raw materials containing ethylene, hydrogen gas and a comonomer are subjected to a tank-type slurry polymerization with an alkane solvent having a boiling point of 5-55° C. or a mixed alkane solvent having a saturated vapor pressure of 20-150 KPa at 20° C. as the polymerization solvent in the presence of a polyethylene catalytic system, at the molar ratio of hydrogen gas to ethylene of 0.01-20:1, preferably 0.

Abstract: A bendable sheath and a delivery system using the bendable sheath. The bendable sheath comprises a tube body (3). The tube body (3) comprises a distal end and a proximal end. A tube wall of the tube body (3) is connected to a pull wire (8). One end of the pull wire (8) extends towards the proximal end of the tube body (3), and the other end is connected to the tube body (3) near the distal end of the tube body (3). The pull wire (8) comprises at least a section thereof disposed freely outside the tube body (3) and near the distal end of the tube body (3). The pull wire (8) in the bendable sheath comprises the section disposed freely outside the sheath tube body (3) and, when pulled, the section is disposed so as to facilitate the application of force. The section moves relative to the tube body (3), such that a force application point is adaptively changed.

Abstract: A source-network-load-storage coordination dispatching method in a background of a coupling of renewable energy sources, including: taking an expectation of a minimum grid operating cost in a dispatching cycle as an objective function; generating an approximate value function of an output of a set for generating electricity from renewable energy sources and a user load, and constructing a source-network-load-storage coordination dispatching model with combination of the objective function; obtaining forecast data of the output of a set for generating electricity from renewable energy sources and the user load, and inputting the forecast data into the dispatching model for solving; performing iterative updating on the approximate value function, importing the approximate value function after the iterative updating into the dispatching model for iterative solving, and terminating an iterative process until a solving result satisfies a preset convergence condition; and using a solving result of a last iteration

Abstract: The present invention relates to a process for continuously producing an ultra-high molecular weight polyethylene by the ethylene slurry polymerization, wherein raw materials containing ethylene and optionally at least one comonomer are subjected to a continuous slurry polymerization in a hydrogen free atmosphere in the ethylene slurry polymerization condition by using 2-6 ethylene slurry polymerization reaction tanks connected in series, and the deviations of the polymerization temperatures, the polymerization pressures, and the gas phase compositions between the tanks each other are controlled to certain ranges. The ultra-high molecular weight polyethylene having the viscosity-average molecular weight of 150-800×104 g/mol can be continuously produced. This process has flexible polymerization manner, large room for adjusting and controlling, and stable polymer performance.

Abstract: Disclosed is an apparatus configured to support growth of a 3D, hollow organoid. The apparatus contains a support structure and an enclosure, wherein a number of cells positioned between the support structure and the enclosure can grow on/around the support structure to form the organoid. The support structure additionally contains openings such that a fluid within the structure can flow into the organoid. The support structure may also extend between two fluid reservoirs configured to supply a fluid to the structure and organoid. The entire apparatus may be formed from an additive manufacturing process.

Abstract: Disclosed are methods and systems for implementing dynamic control of acoustic fields, which involves the use of machine learning through a Markov Decision Process. The machine learning algorithm monitors an attribute of a system and maintains the attribute within a range by altering a signal sent to an acoustic transducer. The acoustic transducer is configured to alter the attribute of the system. The attribute may be an attribute of the acoustic field produced by the acoustic transducer, or may be an attribute of another element of the system, such as a fluid, a rotor, or a cell mass.

Abstract: Disclosed are a net load forecasting method and apparatus for a new energy electric power market. The method includes: obtaining and performing data preprocessing on new energy output data and external environmental data, and extracting strongly correlated features from the new energy output data and the external environmental data after the data preprocessing; performing feature expansion on the strongly correlated features, and inputting the strongly correlated features after the feature expansion into a preconstructed regression forecasting model, to obtain a first forecast value; obtaining and performing data preprocessing on user load data and load influencing factor data, and inputting the user load data and the load influencing factor data after the data preprocessing into a FNN-LSTM hybrid model, to obtain a second forecast value; and calculating a difference between the second forecast value and the first forecast value, to obtain a net load forecasting result.