Abstract: The present disclosure provides a carbon-encapsulated lithium manganese iron phosphate material having a composition of: LiFe1-x-yMnxMyPO4@C, where M includes at least one of Mg, V, Zr, Nb, In, Al, Co and Ni, 0.5?x?0.8, 0<y?0.02, and C is encapsulated carbon. The material has a secondary gradation structure with tightly bound material gradation, high compaction density, and excellent electrochemical performance. The present disclosure further provides a method for preparing a carbon-encapsulated lithium manganese iron phosphate material, which has a simple process flow and is suitable for application in large-scale industrial production. The present disclosure further provides a lithium ion battery in which the carbon-encapsulated lithium manganese iron phosphate material is applied.

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 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 resource statistics collection method and apparatus, and a terminal are provided. The method includes: recording a process running on a terminal at each of at least two time points; for each of the time points, obtaining at least one hardware resource invoked by the process running at the time point; obtaining a process set including processes running at the at least two time points; and obtaining, according to the hardware resource invoked by the process in the process set, information about the at least one hardware resource occupied by an application associated with the process in the process set. In embodiments of the present invention, statistics collection is performed per process, so that information about the hardware resource occupied by each application of the terminal can be obtained, and a statistical granularity is relatively fine.

Abstract: A dual-mode Bluetooth terminal configured to receive a first input from a user, send a first BLE pairing advertisement message in response to the first input, where an address type in the first BLE pairing advertisement message is public, an advertisement address in the first BLE pairing advertisement message is a fixed advertisement address, and the first BLE pairing advertisement message carries an identifier used to indicate that the first dual-mode Bluetooth terminal does not support bit rate/enhanced data rate (BR/EDR), receive a second input from the user, enter a conventional Bluetooth discoverable mode in response to the second input, receive a paging message, and send a paging response in response to the paging message, where the paging response carries a media access control (MAC) address of the first dual-mode Bluetooth terminal, and the first input is different from the second input.

Abstract: A resource statistics collection method and apparatus, and a terminal are provided. The method includes: recording a process running on a terminal at each of at least two time points; for each of the time points, obtaining at least one hardware resource invoked by the process running at the time point; obtaining a process set including processes running at the at least two time points; and obtaining, according to the hardware resource invoked by the process in the process set, information about the at least one hardware resource occupied by an application associated with the process in the process set. In embodiments of the present invention, statistics collection is performed per process, so that information about the hardware resource occupied by each application of the terminal can be obtained, and a statistical granularity is relatively fine.

Abstract: A method for recognizing infrequently-used data includes scanning files in storage space according to a first scanning rule, generating a file set according to the scanned files, for each file in the file set, obtaining a last access time of the file, where the last access time indicates a time when the file was last accessed and not modified, obtaining a file attribute of the file, querying an infrequently-used file recognition condition corresponding to the file attribute, and when the last access time of the file meets the infrequently-used file recognition condition, recognizing the file as an infrequently-used file.

Abstract: A device connection method includes a terminal receiving a communications connection request of a vehicular device, enabling a communications mode corresponding to the communication connection request in a process of connecting to a service of an interconnect protocol, and when determining that the service is successfully connected and that the communications mode is successfully enabled, determining that the terminal is successfully connected to the vehicular device using the interconnect protocol.

Abstract: A resource statistics collection method and apparatus, and a terminal are provided. The method includes: recording a process running on a terminal at each of at least two time points; for each of the time points, obtaining at least one hardware resource invoked by the process running at the time point; obtaining a process set including processes running at the at least two time points; and obtaining, according to the hardware resource invoked by the process in the process set, information about the at least one hardware resource occupied by an application associated with the process in the process set. In embodiments of the present invention, statistics collection is performed per process, so that information about the hardware resource occupied by each application of the terminal can be obtained, and a statistical granularity is relatively fine.

Abstract: A device connection method includes a terminal receiving a communications connection request of a vehicular device, enabling a communications mode corresponding to the communication connection request in a process of connecting to a service of an interconnect protocol, and when determining that the service is successfully connected and that the communications mode is successfully enabled, determining that the terminal is successfully connected to the vehicular device using the interconnect protocol.

Abstract: A method for recognizing infrequently-used data includes scanning files in storage space according to a first scanning rule, generating a file set according to the scanned files, for each file in the file set, obtaining a last access time of the file, where the last access time indicates a time when the file was last accessed and not modified, obtaining a file attribute of the file, querying an infrequently-used file recognition condition corresponding to the file attribute, and when the last access time of the file meets the infrequently-used file recognition condition, recognizing the file as an infrequently-used file.

Abstract: A resource statistics collection method and apparatus, and a terminal are provided. The method includes: recording a process running on a terminal at each of at least two time points; for each of the time points, obtaining at least one hardware resource invoked by the process running at the time point; obtaining a process set including processes running at the at least two time points; and obtaining, according to the hardware resource invoked by the process in the process set, information about the at least one hardware resource occupied by an application associated with the process in the process set. In embodiments of the present invention, statistics collection is performed per process, so that information about the hardware resource occupied by each application of the terminal can be obtained, and a statistical granularity is relatively fine.

Abstract: The present invention is applicable to the field of terminal technologies, and provides a touch operation method and apparatus for a terminal. The method includes: acquiring a touch gesture entered by a user on a screen; loading a display control in a first screen area corresponding to the touch gesture; loading a display interface of a second screen area onto the display control, where at least some different interface elements exist in a display interface of the first screen area and the display interface of the second screen area; and acquiring an operation instruction entered by the user on the display control, and operating, on the display control, the display interface of the second screen area according to the operation instruction. In a scenario in which a user operates and controls a large-touchscreen terminal by using one hand, the present invention can effectively improve touch operation efficiency on the terminal.