Abstract: A method includes sending a first orbital angular momentum (OAM) reference signal in a first beam direction. The first OAM reference signal is used to determine a second beam direction from the first beam direction. The method also includes receiving first indication information. The first indication information includes information about the second beam direction. The method also includes sending a second OAM reference signal in the second beam direction. The second OAM reference signal is used to determine antenna information and a second channel response of the second OAM reference signal. The method also includes receiving second indication information. The second indication information is determined based on the second channel response and the antenna information. The second indication information is used to determine a transmission manner. The transmission manner includes OAM wave transmission, plane wave transmission, or joint transmission of OAM and a plane wave.

Abstract: A manufacturing method for ceramics with complex structure by laser 3D printing, includes acquiring a three-dimensional model of a complex component to be fabricated, and devising a laser scanning path; placing a substrate in a gas-phase reactor chamber, followed by vacuuming and aerating vapor mixture of gas-phase precursors and carrier gas into the gas-phase reactor chamber; preheating the substrate to a specified temperature, turning on a laser and a thermal imager, the thermal imager controlling laser power in real time by generating a two-dimensional temperature map of a laser spot to realize temperature control a the printing process; setting a distance between the flat-field focusing lens and the substrate and a laser scanning speed; after stacking another one of the ceramic sheets repeatedly, until completing a fabrication of a ceramic complex component.

Abstract: A portable temperature adjustment device includes a housing, a fan arranged in the housing, and a temperature adjustment assembly mounted to the housing. The temperature adjustment assembly includes a temperature adjustment component and a thermal conduction component in thermal conductive connection with the temperature adjustment component. The thermal conduction component includes a ventilation port. The temperature adjustment component is configured to adjust the temperature of the thermal conduction component such that the airflow generated by the fan and output from the ventilation port of the thermal conduction component is cooled down or heated up.

Abstract: This application provides a camera decoration assembly. The camera decoration assembly includes a decoration member, a mounting member and a fastener. The decoration member is exposed from a housing; and the decoration member and the mounting member are connected through the fastener or buckling, and are pressed on two opposite sides of the housing respectively. The mounting member includes a body and a conductor embedded in the body; and the conductor is of a metal structure, and is partially exposed from the body to be electrically connected to the decoration member and grounded. In the camera decoration assembly, the decoration member is mounted from outside of the housing, and the mounting member is mounted from inside of the housing, and is connected to the decoration member through the fastener or buckling. An appearance size of the decoration member located outside the housing is not limited by a size and a layout of an internal structure of a mobile terminal device.

Abstract: A semiconductor package and a package method are provided. The semiconductor package includes: a first carrier board having a plurality of first assembly surfaces and a first surface, where signal exchange ports are provided on the first surface; a plurality of package structures, each corresponding to one of the plurality of first assembly surfaces, where each package structure is welded on its corresponding first assembly surface and electrically connected to the first carrier board, where an end of at least one of the plurality of package structures is exposed and faces away from the first surface of the first carrier board; and a High Bandwidth Memory (HBM) structure welded on and electrically connected to a surface of the end of the at least one of the plurality of package structures that face the first carrier board.

Abstract: A stacked package structure and a package method are provided. The stacked package structure includes: a first package substrate having a first surface and a plurality of first welding surfaces, where a signal connection end is arranged on the first surface of the first package substrate; and a plurality of device structures each corresponding one of the plurality of first welding surfaces, where the plurality of first device structures are welded on the first welding surfaces of the first package substrate and electrically connected to the first package substrate.

Abstract: A container removing robot, including: a master control and processing unit, a pick-and-place mechanism, and a marker detection unit, wherein a robot body of the robot runs on a plane of a storage region, the storage region is provided with an inventory bracket for storing an inventory container, and the marker detection unit is arranged on the pick-and-place mechanism, and wherein the master control and processing unit is configured to: control the robot body to move to a first horizontal position and control the pick-and-place mechanism to move to a first height position; the marker detection unit is configured to: detect at least two target container edges of the target inventory container; and the master control and processing unit is further configured to: calibrate a position of the pick-and-place mechanism; and remove a stored target inventory container from a target storage position in a case that the calibration is completed.

Abstract: In the context of an electronic storage device such as a solid-state drive, a heat-mitigating enclosure includes one or more thermal conduction inhibitor interposed in the respective top or bottom enclosing structure and positioned between a relatively high-temperature electronic component such as an ASIC controller and/or PMIC of a corresponding PCB and a relatively low-temperature electronic component such as NAND memory. Such a thermal conduction inhibitor may include one or more through-hole through the enclosure structure and/or a recess extending into the enclosure structure, with or without a low thermal conductivity material embedded therein.

Abstract: This application provides a security authentication method and apparatus applied to Wi-Fi. An access point AP negotiates, based on a password, a pairwise master key PMK with a first device based on a twin base password encrypted key exchange TBPEKE protocol, where the password is a shared key between the AP and the first device; and the AP performs a 4-way handshake with the first device based on the PMK. Therefore, in embodiments of this application, a PMK with a high entropy value can be generated by performing a TBPEKE procedure, so that the security authentication method provided in embodiments of this application can help resist an offline dictionary attack.

Abstract: The patent discloses a method for forming a PFA coated butterfly plate without flow marks, comprising a mold and a plate core; the mold comprises a push mold, a hopper, an upper mold, and a lower mold; the bottom of the upper mold is equipped with an upper cavity, the top of the lower mold is equipped with a lower cavity, and the upper mold has an injection port. There are two symmetrical protruding structures on the board core, both of which are connected to shafts. Both the board core and the shaft have interconnected channels that run through the center of the board core. The forming method of PFA coated butterfly board is to cover a layer of PFA on the outer surface of the board core, which can ensure that the prepared product has no texture.

Abstract: The present disclosure provides a power supply and electric vehicle, including a battery, an input component, an output component, and an inverter. The input component includes an alternating current input interface and a direct current input interface; the output component includes an alternating current output interface and a direct current output interface; and the inverter is configured to perform conversion between alternating current and direct current. According to the power supply and electric vehicle, the vehicle has various electric energy inputting forms and has various output ports for alternating current/direct current, so that it is convenient for a user to cope with outdoor emergencies, and the power supply and electric vehicle can be used as an emergency power supply.

Abstract: A package structure, the structure including: a base; a device chip mounted on the base; a molding layer located on the base and covering the device chip; and a first heat dissipation lead exposed from the molding layer and connected with a side portion of the base, the first heat dissipation lead including a first connection portion and a first extension portion in bent connection with it, the first connection portion is connected with the side portion of the base, and the first extension portion and the side wall of the molding layer are arranged opposed to each other.

Abstract: An apparatus for operating a vehicle includes an environment detection unit which is configured to acquire environment information relating to the environment of the vehicle and to generate environment data corresponding to the environment information, and an occupant detection unit which is configured to acquire an image having an illustration of a vehicle driver of the vehicle and to generate driver image data corresponding to the image. Moreover, the apparatus includes a control unit which is configured to determine, based on the environment data, a driving maneuver of the vehicle which is to be executed by the vehicle within the scope of assisted or automated driving, and to generate maneuver data corresponding to the determined driving maneuver.

Abstract: The invention provides a seismic exploration system based on a seafloor crawler, belonging to the field of geophysical technology, comprising: a survey vessel, a seafloor crawler, a seismic source, a receiver, a control chip, wherein the survey vessel and the seafloor crawler are connected by a towing rope; the seafloor crawler has a towing cable provided at the rear; the seismic source and receiver are mounted on the towing cable; the seafloor crawler is provided with an electronic cabin, where a data control chip is disposed, which exchanges data with the drive unit of the seafloor crawler, seismic source, and receiver; the control chip is provided with a seismic exploration control module for setting vibration parameters of the seismic source and preprocessing the data collected by the receiver to obtain seismic exploration data; the electronic cabin also contains a data transmission device, which is electrically connected to the control chip.

Abstract: A system is disclosed for detecting a pest infestation and/or a disease on plants. The system comprises a plurality of spatially separated VOC sensors for detecting volatile organic compounds, VOCs, among a plurality of plants. The system also comprises a database system having stored thereon a plurality of indications of respective distress VOCs and/or response VOCs. Herein, each distress VOC is a VOC that is emitted by a pest infested and/or diseased plant and each response VOC is a VOC that is emitted by a plant in response to the plant detecting a distress VOC from a pest infested and/or diseased plant.

Abstract: Some embodiments relate to a fluidized large-scale preparation method for a silicon-carbon negative electrode material, relating to the technical field of battery materials, including: crushing a raw material, performing a fluidized silicon deposition reaction and a fluidized carbon deposition reaction. The fluidized silicon deposition reaction and the fluidized carbon deposition reaction are performed in a stirred fluidized bed reactor; and conditions of the stirred fluidized bed reactor include: a temperature of 300-1000° C., and a stirring speed of 1-240 r/min. A silicon material and a carbon material are compounded using the stirred fluidized bed reactor, so as to realize large-scale preparation of the silicon-carbon negative electrode material, implement conductance modulation of materials, improve reaction activity and area of an electrode, shorten a lithium-ion diffusion distance, elevate a diffusion rate of lithium ions, and finally ameliorate cycle capacity, rate capability and the like of batteries.

Abstract: A wearable air conditioner includes a shell for being worn around a wearing portion of a user, a fan and a temperature regulating member disposed in the shell. The shell includes a first air passage, a first accommodating chamber, at least one air outlet in communication with the first air passage, and vent holes in communication with the first accommodating chamber. The temperature regulating member is configured for generating heat energy or cold energy. The temperature regulating member is in thermal connection with a sidewall of the first accommodating chamber. An airflow generated by the fan is capable of entering the first air passage and then exiting the shell via the at least air outlet.

Abstract: Provided are a cooking device and a feeding apparatus. The cooking device includes a feeding apparatus including a seasoning box assembly and a feeding box assembly; the seasoning box assembly includes a frame and at least one seasoning box sequentially arranged on the rack in an X-axis direction; the top of the seasoning box is higher than the top of the frame; the feeding box assembly includes a housing mounted on the frame, at least one feeding box located at the top of the housing, and a motion apparatus, which is located in an inner cavity of the housing and is configured to drive the feeding box to move in the X-axis direction; and the motion apparatus includes a motion mechanism controlled by a driving mechanism, where projections of the motion mechanism and the seasoning box on a vertical plane parallel to an X-axis overlap with the driving mechanism.

Abstract: A method for dynamic gap management by a base station configured in a 5G New Radio (5G-NR) and beyond wireless network includes detecting a communication link to an inactive external reference clock source. The external reference clock source is configured to generate an external reference clock signal. The external reference clock signal is associated with timing a pre-configured duration of scheduled downlink (DL) transmissions and scheduled uplink (UL) receptions by the base station. An internal reference clock source is activated. The internal reference clock source generates an internal reference clock signal. Timing of a subsequent DL transmission or a subsequent UL reception is configured using the internal reference clock signal. The subsequent DL transmission or the subsequent UL reception is configured with a duration that is smaller than the pre-configured duration.