Abstract: The described positional awareness techniques employing sensory data gathering and analysis hardware with reference to specific example implementations implement improvements in the use of sensors, techniques and hardware design that can enable specific embodiments to find new area to cover by a robot encountering an unexpected obstacle traversing an area in which the robot is performing an area coverage task. The sensory data are gathered from an operational camera and one or more auxiliary sensors.

Abstract: The present disclosure discloses a method for preparing large-size rare earth magnesium alloy with high-performance ingots by short process severe plastic deformation. When in use, the pushing cylinder moves upward, and the back pressure plate is adjusted to the outlet of the extrusion deformation area. After the male mold stroke is completed, the recoverable discard block fills the extrusion deformation area, and the upsetting extrusion deformation is completed. Then, the pushing cylinder drives the back pressure plate to remove from the lower part of the lower mold cavity downward, and the recoverable discard block has been broken due to the high pressure. Then, the extruded blank and residual block powder are taken out from the lower part of the lower mold cavity, restored into a plate shape for the next use. The present disclosure can solve the tail shrinking phenomenon, save materials and increase the strengthening effect.

Abstract: The present disclosure discloses a method for preparing large-size rare earth magnesium alloy with high-performance ingots by short process severe plastic deformation. When in use, the pushing cylinder moves upward, and the back pressure plate is adjusted to the outlet of the extrusion deformation area. After the male mold stroke is completed, the recoverable discard block fills the extrusion deformation area, and the upsetting extrusion deformation is completed. Then, the pushing cylinder drives the back pressure plate to remove from the lower part of the lower mold cavity downward, and the recoverable discard block has been broken due to the high pressure. Then, the extruded blank and residual block powder are taken out from the lower part of the lower mold cavity, restored into a plate shape for the next use. The present disclosure can solve the tail shrinking phenomenon, save materials and increase the strengthening effect.

Abstract: Provided are novel high entropy nitrides (HENs) exhibiting excellent physical and chemical properties. Also provided are systems and methods to synthesize bulk HENs by reaction flash sintering. Commercial metal nitride powders can be consolidated into near fully dense single-phase bulk ceramic with a proprietary flash sintering apparatus. A constant DC electrical field of ˜80 V/cm and pressure of ˜15 MPa at room temperature can trigger reaction flash sintering without pre-heating, and the entire process can finish in ˜250 seconds to ˜400 seconds.

Abstract: A method for growing polycrystalline diamond films having engineered grain growth and microstructure. Grain growth of a polycrystalline diamond film on a substrate is manipulated by growing the diamond on a nanopatterned substrate having features on the order of the initial grain size of the diamond film. By growing the diamond on such nanopatterned substrates, the crystal texture of a polycrystalline diamond film can be engineered to favor the preferred <110> orientation texture, which in turn enhances the thermal conductivity of the diamond film.

Abstract: Embodiments of this application disclose an antenna. The antenna may be applied to the field of automatic driving and the field of vehicle-to-everything, and the antenna includes a first radiating element and a first feed line. A first end of the first feed line is connected to the first radiating element. The first radiating element and the first feed line are arranged on a same surface of a dielectric substrate. The first feed line includes a first feed line segment, and an acute angle between the first feed line segment and a current direction of the first radiating element is greater than or equal to 20 degrees, and is less than or equal to 70 degrees. A feeding manner of the antenna is parallel feeding.

Abstract: Embodiments provide a radio frequency apparatus including a radome, an absorber, and a radio frequency circuit board that may be used for millimeter wave radar of an intelligent automobile to reduce high-frequency radiation interference from a radio frequency chip and an antenna feeder.

Abstract: A computer device receives a session message in a group session on a social networking application. The session message includes a child application identifier corresponding to a child application. The device determines a session identifier corresponding to the group session to which the session message belongs. The device transmits the session identifier to the child application and receives from the child application a request for page data corresponding to the session identifier. In accordance with the request, the device obtains the page data corresponding to the child application identifier. The device renders a child application page in a child application according to the obtained data. In accordance with detecting a trigger event corresponding to the child application identifier on the session message, the device invokes the child application in the social networking application.

Abstract: A method for growing polycrystalline diamond films having engineered grain growth and microstructure. Grain growth of a polycrystalline diamond film on a substrate is manipulated by growing the diamond on a nanopatterned substrate having features on the order of the initial grain size of the diamond film. By growing the diamond on such nanopatterned substrates, the crystal texture of a polycrystalline diamond film can be engineered to favor the preferred <110> orientation texture, which in turn enhances the thermal conductivity of the diamond film.

Abstract: A method for growing polycrystalline diamond films having engineered grain growth and microstructure. Grain growth of a polycrystalline diamond film on a substrate is manipulated by growing the diamond on a nanopatterned substrate having features on the order of the initial grain size of the diamond film. By growing the diamond on such nanopatterned substrates, the crystal texture of a polycrystalline diamond film can be engineered to favor the preferred <110> orientation texture, which in turn enhances the thermal conductivity of the diamond film.

Abstract: A computer device receives a session message in a group session on a social networking application. The session message includes a child application identifier corresponding to a child application. The device determines a session identifier corresponding to the group session to which the session message belongs. The device transmits the session identifier to the child application and receives from the child application a request for page data corresponding to the session identifier. In accordance with the request, the device obtains the page data corresponding to the child application identifier. The device renders a child application page in a child application according to the obtained data. In accordance with detecting a trigger event corresponding to the child application identifier on the session message, the device invokes the child application in the social networking application.

Abstract: A method for processing a message in a group session of a social networking application is performed at a computer device. The method includes: receiving a session message in a group session; extracting a child application identifier carried in the session message; determining a session identifier corresponding to the group session to which the session message belongs; obtaining page data that corresponds to the child application identifier and that is associated with the session identifier; and rendering, according to the page data, a child application page in a child application that is invoked in an environment provided by the social networking application and that corresponds to the child application identifier.

Abstract: This application provides a program operating method and a related apparatus. The method includes obtaining first operating data of the program from a server, the first operating data comprising at least an instruction for starting the program; executing the first operating data, and displaying a first page of the program according to the first operating data; determining, in response to a second triggering instruction of a control in the first page, a second page identifier corresponding to the control; obtaining second operating data from the server according to the second page identifier if operating data corresponding to the second page identifier is not in the first operating data, the second operating data comprising the operating data corresponding to the second page identifier; and executing the second operating data, and displaying a second page according to the second operating data, the second operating data comprising portions of the program.

Abstract: This application relates to a page rendering method, applied to a terminal. The terminal obtains an updated current node tree, searches the current node tree for a current subtree set, and obtains an identifier corresponding to the current subtree set. The terminal then determines whether the identifier is the same as an identifier of an original subtree set of an original node tree, and reserves an original view node corresponding to the original subtree set on a current page if the identifiers are the same; or generates an updated view node corresponding to the current subtree set if the two identifiers are not the same. Finally the terminal generates an updated page through rendering according to the original view node and the updated view node, and displays the updated page on a graphical user interface of the terminal.

Abstract: A mobile application program testing method is provided for a server. The method includes receiving a code-to-be-tested sent by a first terminal, compiling the code-to-be-tested to a mobile application program, and recording a downloading address used for downloading the mobile application program. The method also includes generating a barcode used for obtaining the downloading address; and returning the barcode to the first terminal to be displayed. A second terminal acquires the barcode, obtains the downloading address, downloads the mobile application program according to the downloading address, and tests the mobile application program on the second terminal.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device associated with a social networking application. While running a social networking application, the first computing device detects a near-field wireless communication signal broadcasted by a second computing device associated with a service provider account registered with the social networking application.

Abstract: An apparatus for cooling is disclosed. One apparatus includes a motor body and a shaft extending through the motor body and configured to rotate in response to operation of the motor body. The shaft includes a first through-hole extending axially between a first end of the shaft and a second end of the shaft. The first through-hole is configured to receive a fluid to cool the motor body.

Abstract: A method for growing polycrystalline diamond films having engineered grain growth and microstructure. Grain growth of a polycrystalline diamond film on a substrate is manipulated by growing the diamond on a nanopatterned substrate having features on the order of the initial grain size of the diamond film. By growing the diamond on such nanopatterned substrates, the crystal texture of a polycrystalline diamond film can be engineered to favor the preferred <110> orientation texture, which in turn enhances the thermal conductivity of the diamond film.

Abstract: A method for processing a message in a group session of a social networking application is performed at a computer device. The method includes: receiving a session message in a group session; extracting a child application identifier carried in the session message; determining a session identifier corresponding to the group session to which the session message belongs; obtaining page data that corresponds to the child application identifier and that is associated with the session identifier; and rendering, according to the page data, a child application page in a child application that is invoked in an environment provided by the social networking application and that corresponds to the child application identifier.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device associated with a social networking application. While running a social networking application, the first computing device detects a near-field wireless communication signal broadcasted by a second computing device associated with a service provider account registered with the social networking application.