Abstract: The present disclosure generally relates to methods and user interfaces for authentication, including providing authentication at a computer system in accordance with some embodiments.

Abstract: Systems, methods, client devices, and non-transitory computer-readable media are disclosed for displaying a context-aware avatar overlay editor within an active extended-reality environment to modify an avatar without suspending or navigating away from the extended-reality environment. For example, the disclosed systems can provide an integrated avatar overlay editor within an application corresponding to the extended-reality environment. Furthermore, the disclosed systems can utilize the integrated avatar overlay editor to provide, for display as an overlay user interface in the extended-reality environment, a context-aware avatar overlay editor. In addition, the disclosed systems can utilize a contextual recommendation engine to provide avatar modifications within the context-aware avatar overlay editor that are relevant to the active extended-reality environment.

Abstract: A nucleic acid synthesis device and a nucleic acid purification device, uses thereof, and a nucleic acid synthesis method and a nucleic acid purification method. The nucleic acid synthesis device includes a solid support, and the solid support includes a controlled pore glass (CPG), the CPG is an unmodified and bare CPG, a surface of the CPG has a hydroxyl group, and the hydroxyl group is attachable, though a covalent bond, to a phosphoramidite-protected nucleotide monomer or multimer for synthesis of nucleic acid. The nucleic acid synthesis device of the present disclosure can be used for not only synthesis of an oligonucleotide primer, but also for purification of enzymatic digestion and PCR product by using the oligonucleotide primer immobilized on the CPG, and has advantages of simple structure, small volume, light weight, high efficiency, low costs, and diversified functions.

Abstract: The present disclosure generally relates to methods and user interfaces for authentication, including providing authentication at a computer system in accordance with some embodiments.

Abstract: A method for pushing a key includes the following steps: setting a plurality of keys, each of which corresponds to a different encrypted environment; configuring a user terminal with an environment switching interface for selection of an encrypted environment; and pushing a corresponding key to the user terminal according to a received key acquisition request.

Abstract: The present disclosure provides a variable-rate spray control system based on an annular application structure and a tree canopy volume (TCV) calculation method thereof. The TCV calculation method includes: acquiring in real time, by using vertical/horizontal scanning two-dimensional (2D) LiDAR, point cloud data of a variable-rate sprayer in motion in an orchard environment; acquiring speed information of the variable-rate sprayer by using a speed sensor; dividing spraying regions according to an angle at which contacts of nozzles on an annular application structure are mutually spaced on an arc; filtering interferences by setting a threshold range, calculating a sector area of a tree canopy according to trunk distance information from the horizontal LiDAR and point cloud information from the vertical LiDAR within the threshold range, and calculating a TCV in combination with the information of the speed sensor and a scanning cycle of the vertical LiDAR.

Abstract: A method for generating a DNA storage encoding/decoding rule, and a method for DNA storage encoding/decoding. The method for generating the DNA storage encoding/decoding rule includes: setting a sliding window for the DNA storage encoding/decoding rule; screening out, from a full set of sequences, a set of qualified sequences complying with a limiting condition; connecting the sequences in the set of qualified sequences by means of a directed graph; deleting, in the directed graph, nodes of which the number of out-degree is less than a set threshold for the number of out-degree; deleting excess out-degree of each node in the directed graph; and acquiring an algorithm chart, which includes the DNA storage encoding/decoding rule.

Abstract: The present disclosure provides a variable-rate spray control system based on an annular application structure and a tree canopy volume (TCV) calculation method thereof. The TCV calculation method includes: acquiring in real time, by using vertical/horizontal scanning two-dimensional (2D) LiDAR, point cloud data of a variable-rate sprayer in motion in an orchard environment; acquiring speed information of the variable-rate sprayer by using a speed sensor; dividing spraying regions according to an angle at which contacts of nozzles on an annular application structure are mutually spaced on an arc; filtering interferences by setting a threshold range, calculating a sector area of a tree canopy according to trunk distance information from the horizontal LiDAR and point cloud information from the vertical LiDAR within the threshold range, and calculating a TCV in combination with the information of the speed sensor and a scanning cycle of the vertical LiDAR.

Abstract: A tilt rotor-based linear multi-rotor unmanned aerial vehicle (UAV) structure for crop protection and a control method thereof are provided. The tilt rotor-based linear multi-rotor UAV structure for crop protection includes main lift power structures, tilt power structures, and a main frame structure, where the main frame structure is located in a middle; the main lift power structures are distributed at left and right ends of the main frame structure; and the tilt power structures are symmetrically distributed between the main frame structure and the main lift power structures. A vector power structure is adopted to ensure flexible attitude changes and smoother and more accurate UAV operations, and improve the operation efficiency. Meanwhile, the tilt rotor-based linear multi-rotor UAV structure is adapted to the complex working environment in China's ever-changing terrains.

Abstract: A tilt rotor-based linear multi-rotor unmanned aerial vehicle (UAV) structure for crop protection and a control method thereof are provided. The tilt rotor-based linear multi-rotor UAV structure for crop protection includes main lift power structures, tilt power structures, and a main frame structure, where the main frame structure is located in a middle; the main lift power structures are distributed at left and right ends of the main frame structure; and the tilt power structures are symmetrically distributed between the main frame structure and the main lift power structures. A vector power structure is adopted to ensure flexible attitude changes and smoother and more accurate UAV operations, and improve the operation efficiency. Meanwhile, the tilt rotor-based linear multi-rotor UAV structure is adapted to the complex working environment in China's ever-changing terrains.

Abstract: An adaptive device includes an transmission assembly and a laser sensor control assembly, where the transmission assembly includes a rotating shaft of a roller, a harvesting part, a motor base plate, a transmission belt of the harvesting part, a transmission shaft of a motor A, motor arms, the high-power motor A, a high-power motor B, a transmission shaft of the motor B, a transmission belt of the roller, and a rotating shaft of the harvesting part; and the laser sensor control assembly includes the motor base plate, upright lifting columns, a control base plate, a battery, a power distribution board, a voltage reduction module, electronic speed controllers, a main control board, a low-power motor, a laser sensor base plate, a laser sensor, tube clamps, a rotating shaft of the laser sensor, and a bearing for stabilizing the rotating shaft of the laser sensor.

Abstract: Methods, computer systems, and apparatus, including computer programs encoded on computer storage media, for predicting future trajectories for an agent in an environment. A system obtains scene context data characterizing the environment. The scene context data includes data that characterizes a trajectory of an agent in a vicinity of a vehicle in an environment up to a current time point. The system identifies a plurality of initial target locations in the environment. The system further generates, for each of a plurality of target locations that each corresponds to one of the initial target locations, a respective predicted likelihood score that represents a likelihood that the target location will be an intended final location for a future trajectory of the agent starting from the current time point.

Abstract: An adaptive device includes an transmission assembly and a laser sensor control assembly, where the transmission assembly includes a rotating shaft of a roller, a harvesting part, a motor base plate, a transmission belt of the harvesting part, a transmission shaft of a motor A, motor arms, the high-power motor A, a high-power motor B, a transmission shaft of the motor B, a transmission belt of the roller, and a rotating shaft of the harvesting part; and the laser sensor control assembly includes the motor base plate, upright lifting columns, a control base plate, a battery, a power distribution board, a voltage reduction module, electronic speed controllers, a main control board, a low-power motor, a laser sensor base plate, a laser sensor, tube clamps, a rotating shaft of the laser sensor, and a bearing for stabilizing the rotating shaft of the laser sensor.

Abstract: A system obtains scene context data characterizing the environment. The scene context data includes data that characterizes a trajectory of an agent in a vicinity of a vehicle up to a current time point. The system identifies a plurality of initial target locations, and generates, for each of a plurality of target locations that each corresponds to one of the initial target locations, a respective predicted likelihood score that represents a likelihood that the target location will be an intended final location for a future trajectory of the agent. For each target location in a first subset of the target locations, the system generates a predicted future trajectory for the agent given that the target location is the intended final location for the future trajectory. The system further selects, as likely future trajectories of the agent, one or more of the predicted future trajectories.

Abstract: The invention discloses a power generating device and an operation method thereof based on ocean temperature difference, which belong to the field of ocean energy utilization, and include a negative thermal expansion body, a rope and a generator. The negative thermal expansion body is connected to the rope, and the rope is connected to the generator simultaneously. The negative thermal expansion body is in a contracted state when in the hotter upper seawater close to the sea surface, and the difference obtained by deducting buoyancy from gravity is relatively large. The negative thermal expansion body is in an expanded state when in colder deep seawater, and the difference obtained by deducting buoyancy from gravity is relatively small. The unbalanced force on the rope will drive the rope to move, and the generator will be driven to generate power through the rope.

Abstract: Methods, computer systems, and apparatus, including computer programs encoded on computer storage media, for predicting future trajectories for an agent in an environment. A system obtains scene context data characterizing the environment. The scene context data includes data that characterizes a trajectory of an agent in a vicinity of a vehicle in an. environment up to a current time point. The system identifies a plurality of initial target locations in the environment. The system further generates, for each of a plurality of target locations that each corresponds to one of the initial target locations, a respective predicted likelihood score that represents a likelihood that the target location will be an intended final location for a future trajectory of the agent starting from the current time point.

Abstract: An agricultural amphibious bait feeding boat includes a boat body. A bait feeding device is fixed to one end of the boat body, and a propulsion device is fixed to the other end of the boat body. The boat body includes two foam floating bodies, foam fixing carbon rods, a transverse carbon rod, tube ferrule fixing assemblies, and tee joints. The two foam floating bodies include a left foam floating body and a right foam floating body, the foam fixing carbon rods parallel to each other are respectively arranged above the two foam floating bodies, and the foam floating bodies and the foam fixing carbon rods are fixed through the tube ferrule fixing assemblies. The transverse carbon rod is connected to the foam fixing carbon rods through the tee joints, and the left foam floating body and the right foam floating body are fixedly connected to each other.

Abstract: The present disclosure relates to a baseline monitoring method, apparatus, readable medium, and electronic device. The method includes: determining a plurality of tasks to be monitored in the baseline; determining whether there is a first task to be monitored that has cyclic dependency according to dependencies among the plurality of tasks to be monitored; and determining a task instance to be checked for each of the tasks to be monitored, and for the first task to be monitored that is not a guaranteed task, determining the task instance to be checked for the first task to be monitored according to the cyclic dependency and dependency between the first task to be monitored and its downstream task to be monitored.

Abstract: The invention discloses a power generating device and an operation method thereof based on ocean temperature difference, which belong to the field of ocean energy utilization, and include a negative thermal expansion body, a rope and a generator. The negative thermal expansion body is connected to the rope, and the rope is connected to the generator simultaneously. The negative thermal expansion body is in a contracted state when in the hotter upper seawater close to the sea surface, and the difference obtained by deducting buoyancy from gravity is relatively large. The negative thermal expansion body is in an expanded state when in colder deep seawater, and the difference obtained by deducting buoyancy from gravity is relatively small. The unbalanced force on the rope will drive the rope to move, and the generator will be driven to generate power through the rope.

Abstract: In an intelligent multi-rotor rescue thrower, a throwing projectile head is located at a foremost end of the thrower, a parachute storage bin is mounted at a center of a front end of the throwing projectile head, a rear end of the throwing projectile head is connected to a projectile body shell through threads, and a first splitter plate, a second splitter plate, and a third splitter plate are directly connected to the projectile body shell through slide grooves built in the projectile body shell to equally divide a space in a cavity of the projectile body shell; connecting flanges tightly connect the projectile body shell to motors, a rotor is connected to an upper end of each of the motors, and three rotors are provided in the space in the cavity of the projectile body shell.