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: 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: The present invention discloses a same-cavity integrated vertical high-speed multistage superfine pulverizing device and method for walnut shells. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells includes a double-channel sliding type feeding device and a same-cavity integrated vertical pulverizing device. The same-cavity integrated vertical pulverizing device includes a material lifting disc and a same-cavity integrated vertical pulverizing barrel. A first-stage coarse crushing region, a second-stage fine crushing region, a third-stage pneumatic impact micro pulverizing region and a fourth-stage airflow mill superfine pulverizing region are disposed in the same-cavity integrated vertical pulverizing barrel.

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: Provided is a preparation method of a detector material. The present disclosure epitaxially grows a buffer layer on a surface of a gallium arsenide substrate, deposits a silicon dioxide layer on the buffer layer, and etches the silicon dioxide layer on the buffer layer according to a strip pattern by photolithography and etching to form strip growth regions with continuous changes in width. Finally, a molecular beam epitaxy (MBE) technology is used to epitaxially grow the detector material in the strip growth regions under set epitaxy growth conditions. Because of the same mobility of atoms arriving at the surface of the substrate, numbers of atoms migrating to the strip growth regions are different due to different widths of the strip growth regions, such that compositions of the material change with the widths of the strip growth regions or a layer thickness changes with the widths of the strip growth regions.

Abstract: A semiconductor substrate, including a back surface having N-type conductive regions and P-type conductive regions. The N-type conductive regions are provided with first non-pyramidal texture structures, and the P-type conductive regions are provided with second non-pyramidal texture structures. A top surface of the first non-pyramidal texture structure is a polygonal plane, and a top surface of the second non-pyramidal texture structure is a polygonal plane. A one-dimensional size of the top surface of the first non-pyramidal texture structure is less than a one-dimensional size of the top surface of the second non-pyramidal texture structure. The one-dimensional size of the top surface of the first non-pyramidal texture structure is in a range of 5 ?m to 12 ?m. The one-dimensional size of the top surface of the second non-pyramidal texture structure is in a range of 10 ?m to 40 ?m.

Abstract: A three-dimensional reconstruction method based on half-peak probability density distribution, including: slicing three-dimensional point cloud along Z-axis direction to obtain N spatial layers; extracting the scatter information in i-th spatial layer and projecting information to Zi plane; constructing membership function of each grid and scatter in the Zi plane and drawing a three-dimensional probability density plot; making a plane parallel to XOY plane through half-peak wmax/2 of three-dimensional probability density plot, parallel intersecting a three-dimensional probability density plot to obtain a contour LXY; superimposing radioactive source reconstruction contours corresponding to N spatial layers sequentially to obtain a three-dimensional reconstruction model of a radioactive source.

Abstract: A manufacturing method of a display panel, a display panel, and a display apparatus. The manufacturing method includes: forming a plurality of backlight units on a process substrate; filling a partition between adjacent backlight units, where a height of the partition relative to the process substrate is greater than a height of the adjacent backlight units relative to the process substrate; preparing a filter layer on a surface of each of the plurality of backlight units away from the process substrate; stripping the backlight units with the filter layer on surfaces of the backlight units from the process substrate, and transferring to a target substrate; and packaging the target substrate.

Abstract: Provided is a weak-signal reading circuit for a sensor, comprising a sensing signal input amplifying unit and a signal reading unit. The sensing signal input amplifying unit comprises a first transistor, wherein a gate and a drain of the first transistor are connected with a sensor; the signal reading unit is connected to a source of the first transistor, the first transistor is turned on when the sensor generates a sensing signal, so that the sensing signal is captured by the signal reading unit. When the sensor senses a signal and generates a voltage, the first transistor tends to be switched on, then the signal reading unit reads the sensing signal through the first transistor which has been turned on, that is, by providing the first transistor, the weak-signal reading circuit for sensor can be self-driven according to the voltage generated by the sensor without an extra drive circuit, thereby achieving low power consumption.

Abstract: Embodiments of the present disclosure relate to a data processing method and apparatus for a neural network. The neural network is provided with at least one activation function. A method may include: converting, in response to that an activation function acquiring current data is a target function, based on a conversion relationship between the target function and a preset function, the current data into input data of the preset function; finding out first output data of the preset function with the input data as an input in a lookup table corresponding to the preset function; obtaining second output data of the target function with the current data as an input by conversion based on the conversion relationship and the first output data; and outputting the second output data.

Abstract: The field is related to plant breeding and methods of identifying and selecting plants with resistance to southern corn rust. Provided are methods to identify novel genes that encode proteins providing plant resistance to southern corn rust and uses thereof. These disease resistant genes are useful in the production of resistant plants through breeding, transgenic modification, or genome editing.

Abstract: Embodiments of the present disclosure provide a method, executed by a computing device, for configuring a vector operation, an apparatus, a device, and a storage medium. The method includes obtaining information indicating at least one configurable vector operation parameter. The information indicating the at least one configurable vector operation parameter indicates a type and a value of the configurable vector operation parameter. The method further includes: based on the type and the value of the configurable vector operation parameter, configuring multiple vector operation circuits to enable each of the vector operation circuits to execute a target vector operation including two or more basic vector operations and defined based on the type and value of the configurable vector operation parameter.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for reducing storage space of a parameter table. The method may include: storing the parameter table in a lookup table system configured to compute an output value of a non-linear function according to an input value of the non-linear function, the parameter table including only an index value associated with an input value on one side of a median in a domain of the non-linear function and a parameter value corresponding to the index value; determining, by using a corresponding relationship between the index value associated with the input value on one side and the parameter value corresponding to the index value, a parameter value corresponding to an index value associated with an input value on the other side; and computing the output value by using the input value on the other side and the determined corresponding parameter value.

Abstract: A manufacturing method of a display panel, a display panel, and a display apparatus. The manufacturing method includes: forming a plurality of backlight units on a process substrate; filling a partition between adjacent backlight units, where a height of the partition relative to the process substrate is greater than a height of the adjacent backlight units relative to the process substrate; preparing a filter layer on a surface of each of the plurality of backlight units away from the process substrate; stripping the backlight units with the filter layer on surfaces of the backlight units from the process substrate, and transferring to a target substrate; and packaging the target substrate.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for reducing storage space of a parameter table. The method may include: storing the parameter table in a lookup table system configured to compute an output value of a non-linear function according to an input value of the non-linear function, the parameter table including only an index value associated with an input value on one side of a median in a domain of the non-linear function and a parameter value corresponding to the index value; determining, by using a corresponding relationship between the index value associated with the input value on one side and the parameter value corresponding to the index value, a parameter value corresponding to an index value associated with an input value on the other side; and computing the output value by using the input value on the other side and the determined corresponding parameter value.

Abstract: Embodiments of the present disclosure provide a method, executed by a computing device, for configuring a vector operation, an apparatus, a device, and a storage medium. The method includes obtaining information indicating at least one configurable vector operation parameter. The information indicating the at least one configurable vector operation parameter indicates a type and a value of the configurable vector operation parameter. The method further includes: based on the type and the value of the configurable vector operation parameter, configuring multiple vector operation circuits to enable each of the vector operation circuits to execute a target vector operation including two or more basic vector operations and defined based on the type and value of the configurable vector operation parameter.

Abstract: The present invention discloses a three-dimensional reconstruction method based on half-peak probability density distribution, comprising the following steps: slicing three-dimensional point cloud along Z-axis direction to obtain N spatial layers; extracting the scatter information in i-th spatial layer and projecting information to Zi plane; constructing membership function of each grid and scatter in the Zi plane and drawing a three-dimensional probability density plot; making a plane parallel to XOY plane through half-peak wmax/2 of three-dimensional probability density plot, parallel intersecting a three-dimensional probability density plot to obtain a contour LXY; superimposing radioactive source reconstruction contours corresponding to N spatial layers sequentially to obtain a three-dimensional reconstruction model of a radioactive source.

Abstract: The field is related to plant breeding and methods of identifying and selecting plants with resistance to southern corn rust. Provided are methods to identify novel genes that encode proteins providing plant resistance to southern corn rust and uses thereof. These disease resistant genes are useful in the production of resistant plants through breeding, transgenic modification, or genome editing.

Abstract: Disclosed are a computing method applied to an artificial intelligence chip and the artificial intelligence chip.