Abstract: A cathode for water splitting production includes: (1) a porous substrate; and (2) an electrocatalyst affixed to the porous substrate. The electrocatalyst includes heterostructures of a first material and a second material that partially covers the first material.

Abstract: A method of controlling a transmission power of a first node configured to communicate wirelessly with one or more other nodes is described. The method may include establishing a first wireless communication link between the first node and a second node, receiving a first power adjustment value from the second node, wherein the first power adjustment value is determined based on signals transmitted by the first node over the first wireless communication link, determining a transmission power level for transmitting signals from the first node based on the received first power adjustment value, and transmitting signals from the first node over the first wireless communication link using the determined transmission power level.

Abstract: A method of providing communication coverage includes collecting a location of an unmanned aerial vehicle (UAV) while the UAV is in flight, determining a communication signal distribution in a proximity of the UAV, and determining one or more locations for arranging one or more relays based on the communication signal distribution to improve communication signal coverage along a flight path of the UAV.

Abstract: A monitoring information broadcasting method includes determining a series of transmission sessions aligned to a system time of a mobile platform. Each transmission session includes a first time period and a second time period. The first time period includes a plurality of first time slices and the second time period includes a plurality of second time slices. The method further includes performing one of broadcasting a data packet of a first type during a first active slice among the first time slices in the first time period of one of the transmission sessions or broadcasting a data packet of a second type during a second active slice among the second time slices in the second time period of the one of the transmission sessions.

Abstract: A method for transmitting video from a movable object includes decomposing video data into a plurality of sub-video data units, encoding the plurality of sub-video data units individually to generate a plurality of coded sub-video data units, and selecting at least one of the plurality of coded sub-video data units for transmission according to one or more characteristics the sub-video data units and one or more channel conditions of a plurality of channels.

Abstract: The present disclosure provides an identify authentication system. The authentication system includes an authentication terminal configured to issue an identity authentication request; and, an authentication server that is connected to the authentication terminal to receive the identity authentication request. The authentication server is configured to acquire one or more identity authentication scenarios from authentication scenarios based on the identity authentication request, and generate and transmit an authentication form after acquiring the authentication scenario. The authentication terminal is configured to submit the identity authentication information to the authentication server based on the authentication form. The identity authentication information includes basic user information and an authentication scenario image and video including a user. The authentication server is further configured to authenticate the user's identity based on the identity authentication information.

Abstract: A method is provided for controlling a movable platform. The method includes determining whether the movable platform is capable of broadcasting information indicating a relevant parameter of the movable platform. The method also includes restricting a movement of the movable platform based on a determination that the movable platform is not capable of broadcasting the information.

Abstract: A data transmitting method includes generating multiple channels of encoded data by encoding same data to be encoded according to a plurality of bit rates and selecting encoded data to be transmitted from the multiple channels of encoded data according to a channel bandwidth of a transmission channel. The encoded data to be transmitted is one of the multiple channels of encoded data that matches the channel bandwidth.

Abstract: A computer-implemented method includes receiving a feedback message including feedback information from a receiver of image data, obtaining a current frame to be encoded, encoding the current frame based at least in part on the feedback information, and transmitting the encoded current frame to the receiver.

Abstract: An image processing method includes a transmitting terminal receiving a feedback message sent by a receiving terminal. The feedback message indicates a reception state of a received image frame sent by the transmitting terminal and received by the receiving terminal before the receiving terminal sends the feedback message. The method further includes acquiring a target image frame, encoding the target image frame according to a preset error correction mechanism to generate encoding data of the target image frame in response to the feedback message indicating a reception error, and sending the encoding data of the target image frame to the receiving terminal.

Abstract: An image processing method includes obtaining a current image frame. The image processing method also includes in response to feedback information, determining a reference image frame for coding the current image frame based on the feedback information. The feedback information is transmitted by a receiver based on a variable feedback time interval, and is configured to indicate a transmission status of an image frame transmitted by a transmitter to the receiver prior to the feedback information. The image processing method also includes coding the current image frame based on an inter-frame coding and the reference image frame to generate coded data. The image processing method further includes transmitting the coded data to the receiver.

Abstract: A directional antenna tracking method includes obtaining first motion feature information of a first device, receiving second motion feature information transmitted from a second device, calculating tracking information of a first directional antenna of the first device with respect to a second directional antenna of the second device based on the first motion feature information and the second motion feature information, and controlling the first directional antenna to move according to the tracking information to face toward the second directional antenna.

Abstract: A method for transmitting images includes obtaining image data of an image frame. The method also includes encoding the image data of the image frame to obtain first encoded image data. The method also includes determining a transmission delay of the first encoded image data. The method further includes re-encoding the image data of the image frame to obtain second encoded image data in response to determining that the transmission delay of the first encoded image data is not within a predetermined range.

Abstract: A method and head-mounted display glasses for controlling an unmanned aerial vehicle (UAV) are provided. A movable mark is displayed, and input information of a user is acquired. According to the input information, the movable mark is moved to control the UAV.

Abstract: A method for establishing a data connection between a mobile terminal and a server includes sending a request for data connection to the server, generating a random password, transmitting the random password to the server for storing in the server, establishing the data connection between the mobile terminal and the server, and encrypting data to be transmitted through the communication connection using the random password.

Abstract: The present disclosure describes systems and methods for operating a movable object using a machine readable code. In one embodiment, an image may be obtained by the movable object. The image may include a machine-readable code configured to store a set of operation data for controlling the movable object. The movable object may process the image to retrieve the machine-readable code and the set of operation data. The movable object further may adjust one or more operation parameters of the movable object based on the set of operation data.

Abstract: The present invention provides for a composition comprising a heterostructure capable of electrochemical CO reduction to a carbon-carbon product, comprising an inorganic material and a porous molecule.

Abstract: A system for controlling an unmanned aerial vehicle (UAV) includes smart glasses and a remote controller. The smart glasses are configured to establish a first channel directly with the UAV, receive first person view (FPV) image data directly from the UAV through the first channel, and display the FPV image data. The remote controller is configured to establish a second channel directly with the UAV, and send a flight control instruction directly to the UAV through the second channel.

Abstract: A metal-ion battery includes: 1) an anode including a metal; 2) a cathode; and 3) an ionic liquid electrolyte disposed between the anode and the cathode, wherein the ionic liquid electrolyte corresponds to a mixture of a metal halide and an organic compound.

Abstract: A wearable apparatus includes a first display screen having a first display plane, a second display screen having a second display plane, a first optical mirror including a first reflective surface facing the first display screen, a second optical mirror including a second reflective surface facing the second display screen, a first eyepiece arranged between the first display screen and the first optical mirror, and a second eyepiece arranged between the second display screen and the second optical mirror. An optical axis of the first eyepiece is approximately parallel to the first display plane. An optical axis of the second eyepiece is approximately parallel to the second display plane. The first reflective surface and the first display screen form a first predetermined angle. The second reflective surface and the second display screen form a second predetermined angle.