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 disclosure discloses a method for automatically identifying south troughs by improved Laplace and relates to the technical field of meteorology. The method includes the following steps: acquiring grid data of a geopotential height field; calculating a gradient field of the geopotential height field in an x direction; searching for a turning point where a gradient value turned from being negative to being positive, and cleaning the gradient field; calculating a divergence of the x direction to obtain an improved Laplacian numerical value L?; performing 0,1 binarization processing on the L? to obtain a black-and-white image and a plurality of targets of potential troughs, merging the black-and-white image and the plurality of targets of the potential troughs by expansion, recovering original scale through erosion, and selecting an effective target through an angle of direction of a contour and an axial ratio.

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: A machine learning apparatus is configured to form an output value function for achieving an objective by iteratively performing: implementing a current state of the first agent function based on a current environmental state to form a subsequent environmental state and a first reward; a determining with the second agent function whether to use a second reward; if that determination has a negative outcome, refining the first agent function based on the first reward; and otherwise computing the second reward according to a predetermined reward function and refining the first agent function based on the first reward and the second reward; refining the second agent function based on a performance of the first agent function in meeting the objective; and adopting the subsequent environmental state as the current environmental state; and subsequently outputting the current state of the first agent function as the output value function.

Abstract: Disclosed herein are dosing regimens for the treatment of cancer mediated by protein kinase C (PKC) with 3-amino-N-(3-(4-amino-4-methylpiperidin-1-yl)pyridin-2-yl)-6-(3-(trifluoromethyl)pyridin-2-yl)pyrazine-2-carboxamide, Compound (I), or a pharmaceutically acceptable salt thereof.

Abstract: The present invention provides metabolites of the antiviral drug bictegravir, including compositions and salts thereof, which are useful in the prevention and/or treatment of HIV as well as analytical methods related to the administration of bictegravir.

Abstract: The present invention provides metabolites of the antiviral drug bictegravir, including compositions and salts thereof, which are useful in the prevention and/or treatment of HIV as well as analytical methods related to the administration of bictegravir.

Abstract: Embodiments of the disclosure disclose a store system, and a method and an apparatus for processing information of clothing items for try-on. The store system comprises: a first device, deployed in a back warehouse area of a store and configured to obtain corresponding relationship between a user and information of one or more clothing items for try-on; and provide preparation prompt information based on the corresponding relationship to prepare the one or more clothing items for the user; and a fitting room, the fitting room comprising a first door and a second door, the first door configured for the user to enter and exit the fitting room, and the second door configured for delivering the one or more clothing items for try-on corresponding to the user from the back warehouse area to the fitting room.

Abstract: A method of detecting defects includes: obtaining a gray-scale image of a substrate to be detected; obtaining a gray-scale difference g between different regions in the gray-scale image; calculating an estimated value of a film thickness difference d between the different regions in the gray-scale image according to the gray-scale difference g; and determining whether the substrate to be detected is qualified according to the estimated value of the film thickness difference d.

Abstract: The invention discloses a Selective Laser Melting forming device for multiple metal powder materials. Technical solutions adopted are as follows: a collector container, a build cylinder and a feed container are provided on a lower portion of a process chamber; leveling oil cylinders for the substrate are mounted in the build cylinder; a recoater bracket in the process chamber is slidably mounted on a slide rail; a recoater is fixed on a lower portion of the recoater bracket; a compaction roller is simultaneously mounted on the recoater bracket; a stress sensor is provided under the compaction roller; an electron microscope for collecting the porosity of the spread powder and the product and a melting pool monitoring Charge Coupled Device camera; a laser scanning system, a directional heating laser system and an alarm device are provided on a top portion of the process chamber.

Abstract: A packaged integrated circuit (IC) device includes a first IC die with a first inductor, a first layer of adhesive on a first major surface of the first IC die, an isolation layer over the first layer of adhesive, a second layer of adhesive on the isolation layer, a second IC die on the second layer of adhesive, and a second inductor in the second IC die aligned to communicate with the first inductor. The isolation layer extends a prespecified distance beyond a first edge of the second IC die.

Abstract: Embodiments of the present disclosure provide methods and devices for providing object coordinating information. The method comprises: submitting an object coordinating request to a server, receiving an object coordinating scheme returned by the server. The object coordinating scheme comprises data object information for a plurality of data objects. The plurality of data objects include a first data object that is a primary coordinating object and at least one second data object configured to coordinate with the first data object. The method can also include displaying the object coordinating scheme.

Abstract: The present invention provides metabolites of the antiviral drug bictegravir, including compositions and salts thereof, which are useful in the prevention and/or treatment of HIV as well as analytical methods related to the administration of bictegravir.