Abstract: Systems, methods, and non-transitory computer readable media may be configured to characterize optical characteristics of optical elements. An optical element mount may be configured to carry an optical element. A calibration display may be configured to display a calibration object. The calibration object may include a known visual pattern. Multiple images of the calibration object may be obtained. The multiple images may be acquired using the optical element carried by the optical element mount. The multiple images may include different perspectives of the calibration object. Optical characteristics of the optical element may be characterized based on the known visual pattern and the different perspectives of the calibration object.

Abstract: A method and an electronic device for operator network switching are provided and relate to the field of terminal technologies. A currently activated profile in an electronic device is a first profile. Specifically, the method includes: accessing, by the electronic device, a first operator network based on the first profile; detecting a second operation after disconnecting a connection to the first operator network in response to a first operation; searching for a network based on stored profiles in response to the second operation, to obtain network search results corresponding to the stored profiles; activating a second profile based on the network search results corresponding to the stored profiles; and accessing a second operator network based on the second profile. In this way, operator network switching is implemented.

Abstract: An adaptive filter system and a method for controlling the adaptive filter system are described herein. The system can includes one or more filters to attenuate incoming light. The one or more filters can be moved by one or more actuators. The method can capture image data from an imaging device through the one or more filters. Information can be determined from the captured image data. The one or more filters can be moved to a position for capturing image data based on the information.

Abstract: A computer-implemented method and a system for training a computer-based autonomous driving model used for an autonomous driving operation by an autonomous vehicle are described. The method includes: creating time-dependent three-dimensional (3D) traffic environment data using at least one of real traffic element data and simulated traffic element data; creating simulated time-dependent 3D traffic environmental data by applying a time-dependent 3D generic adversarial network (GAN) model to the created time-dependent 3D traffic environment data; and training a computer-based autonomous driving model using the simulated time-dependent 3D traffic environmental data.

Abstract: A video processing method is provided. The method includes extracting at least two adjacent video frame images from a frame image sequence corresponding to a video, positioning a text region of each video frame image in the at least two adjacent video frame images, determining a degree of similarity between text regions of each video frame image in the at least two adjacent video frame images, determining, based on the degree of similarity, a key video frame segment comprising a same text in the video, and determining a text key frame in the video based on the key video frame segment.

Abstract: Systems, methods, and non-transitory computer-readable media are provided for implementing a tracking camera system onboard an autonomous vehicle. Coordinate data of an object can be received. The tracking camera system actuates, based on the coordinate data, to a position such that the object is in view of the tracking camera system. Vehicle operation data of the autonomous vehicle can be received. The position of the tracking camera system can be adjusted, based on the vehicle operation data, such that the object remains in view of the tracking camera system while the autonomous vehicle is in motion. A focus of the tracking camera system can be adjusted to bring the object in focus. The tracking camera system captures image data corresponding to the object.

Abstract: Particulate material comprising rough mesoporous hollow nanoparticles. The rough mesoporous hollow nanoparticles may comprise a mesoporous shell, the external surface of which has projections thereon, the projections having smaller sizes than the particle size. The particulate material may be used to deliver active agents, such as insecticides and pesticides. The active agents can enter into the hollow core of the particles and be protected from degradation by sunlight. The rough surface of the particles retains the particles on plant leaves or animal hair. Methods for forming the particles are also described. Carbon particles and methods for forming carbon particles are also described.

Abstract: An adaptive filter system and a method for controlling the adaptive filter system are described herein. The system can includes one or more filters to attenuate incoming light. The one or more filters can be moved by one or more actuators. The method can capture image data from an imaging device through the one or more filters. Information can be determined from the captured image data. The one or more filters can be moved to a position for capturing image data based on the information.

Abstract: This disclosure describes mechanisms for performing rate matching in low-density parity check (LPDC) codes in a wireless network. A device may generate an Aggregated Media Access (MAC) Protocol Data Unit (AMPDU) payload having an AMPDU payload size associated with a number of bits. The device may omit pre-Forward Error Correction (FEC) padding of the AMPDU payload at a MAC layer by indicating the AMPDU payload size in a physical layer (PHY)-specific preamble. The device may then generate the PHY-specific preamble comprising the AMPDU payload size without the pre-FEC padding. The device may also calculate a number of Orthogonal Frequency Division Multiplexing (OFDM) symbols for containing the number of bits and transmit the PHY-specific preamble and the number of OFDM symbols to a station device.

Abstract: A tunnel oxide passivated contact solar cell includes a semiconductor substrate, an emitter film layer, an anti-reflective layer, a first electrode, a tunnel oxide layer, a semiconductor film layer and a second electrode. The semiconductor substrate is a first type doped semiconductor, and the first surface of the semiconductor substrate includes a zigzag structure. The emitter film layer is a second type doped semiconductor film. The anti-reflective layer is provided with a first opening. A part of the first electrode is in the first opening and electrically connected to the emitter film layer. The tunnel oxide layer has a thickness ranging from 1.3 nm to 1.6 nm, the thickness difference measured is less than 4%, and the tunnel oxide layer is made by an atomic layer deposition process. The semiconductor film layer is a first type doped semiconductor. The second electrode is electrically connected to the semiconductor film layer.

Abstract: The application relates to an apparatus and method used in Wireless Local Area Networks (WLANs). The apparatus includes: a wireless interface; and processor circuitry coupled to the wireless interface and configured to: generate a Physical layer Protocol Data Unit (PPDU) with a Low Density Parity Check (LDPC) coding scheme; and provide the PPDU to the wireless interface for transmitting, wherein the PPDU comprises one special codeword and more than one regular codeword and does not comprise a padding bit before Forward Error Correction (FEC) codes, and the regular codeword has a fixed codeword size, which can be different from a codeword size of the special codeword.

Abstract: A method comprises obtaining autonomous vehicle sensor data of an autonomous vehicle. One or more autonomous vehicle actions of the autonomous vehicle are predicted based on the autonomous vehicle sensor data. Interactive content is identified from a library of interactive content. The interactive content is adjusted based on the predicted one or more autonomous vehicle actions, and the adjusted interactive content is presented within the autonomous vehicle.

Abstract: Systems, methods, and non-transitory computer-readable media are provided for implementing a tracking camera system onboard an autonomous vehicle. Coordinate data of an object can be received. The tracking camera system actuates, based on the coordinate data, to a position such that the object is in view of the tracking camera system. Vehicle operation data of the autonomous vehicle can be received. The position of the tracking camera system can be adjusted, based on the vehicle operation data, such that the object remains in view of the tracking camera system while the autonomous vehicle is in motion. A focus of the tracking camera system can be adjusted to bring the object in focus. The tracking camera system captures image data corresponding to the object.

Abstract: Disclosed is a method for measuring a remaining amount of the abrasive for an edger. The edger includes a cover and an abrase wheel installed inside the cover, a bottom surface of the cover is parallel to a rotating shaft of the abrase wheel, abrasives are outside an outer wheel of the abrase wheel, in which a distance sensor is installed on an inner wall of the bottom surface of the cover, and the method for measuring the remaining amount of the abrasive for the edger includes: acquiring distance data detected by the distance sensor; acquiring the remaining amount of the abrasive according to the distance data.

Abstract: A method for triggering a search for a high-RAT network includes when it is detected that a WI-FI of a terminal device is disconnected, a terminal device moves out of an elevator, or a terminal device moves to another location with a better signal, the terminal device is triggered to start background searching for a network, and attempt to camp on and register with the high-RAT network.

Abstract: An online system selecting content items for presentation to its users accounts for likelihoods of users performing actions associated with content items when selecting content items. The online system maintains models determining likelihoods of users performing various actions. If a content item is associated with an action that infrequently occurs, information for determining the model for the action is limited, so the online system increases a bid amount associated with the content item during a time interval to an amount based on a likelihood of the user performing a more frequently occurring alternative action and an average bid amount for the alternative action from content items previously presented to users. The online system also determines an amount based on the model for the action and the bid amount for during the time interval and stops increasing the bid amount when the rate of change has less than a threshold magnitude.

Abstract: The application relates to an apparatus and method used in Wireless Local Area Networks (WLANs). The apparatus includes: a Radio Frequency (RF) interface; and processor circuitry coupled with the RF interface and configured to: generate an Extremely High Throughput (EHT) Physical Protocol Data Unit (PPDU); and provide the EHT PPDU to the RF interface for transmitting on a transmission bandwidth, wherein any of distributed Resource Units (dRUs) for transmitting a data portion of the EHT PPDU is associated with a whole or part of an EHT-Short Training Field (STF) sequence constituting the EHT PPDU, and any of the dRUs is a resource unit, subcarriers of which are distributed across one or more frequency sub-blocks within the transmission bandwidth for transmitting the EHT PPDU.

Abstract: This application discloses a method for transmitting prompt information in a multiplayer online battle program performed by a terminal. The method includes: displaying a user interface (UI); receiving a directional operation on the UI for activating a prompt information transmission function and pointing to a target display element in the UI; predicting target prompt information according to the target display element and battle information; determining one or more virtual characters in a battle for receiving the predicted target prompt information; and transmitting the predicted target prompt information to terminals of the one or more determined virtual characters, the one or more determined virtual characters being a master virtual character or all virtual characters in the battle. This application can intelligently determine and select a prompt signal that the user wants to transmit in a current battle scenario based on a thought expressed by the user and the battle information.

Abstract: A system included and a computer-implemented method performed in an autonomous-driving vehicle are described. The system performs: detecting a wireless push signal transmitted from a signal transmitter accompanied by an off-vehicle passer and received by a signal receiver of the autonomous-driving vehicle, the wireless push signal including information about a motion capability level of the off-vehicle passer, determining a position and a motion capability level of the off-vehicle passer at least based on the wireless push signal, and controlling a locomotive mechanism of the autonomous-driving vehicle based on the determined position and motion capability level of the off-vehicle passer.

Abstract: A network search method includes presetting, by a terminal device, a Public Land Mobile Network (PLMN) and a networking mode associated with the PLMN, searching, by the terminal device based on a geographical location to obtain PLMN information of a current geographical location, determining, by the terminal device based on the preset PLMN and the networking mode associated with the PLMN, a current networking mode of the terminal device, and switching, by the terminal device, the networking mode based on a geographical location, signal strength, and a system message.