Abstract: Disclosed in embodiments of the present disclosure is a mowing robot recharging method. A position of a mowing robot may be obtained in response to a recharging request for the mowing robot. A preset recharging path and a position of a charging pile are obtained. The mowing robot is controlled to navigate to the recharging path based on the recharging path and the position of the mowing robot. The mowing robot is controlled to perform a recharging task based on the recharging path, the position of the charging pile, and the current position of the mowing robot.

Abstract: Systems and methods are described for controlling adaptive filtering components. A far end signal may be filtered by each of a foreground filter and a background filter, where both filters are adaptive echo cancellation filters that output echo estimations. Control logic may halt adaptation by the background filter based on a deviation signal. To determine the deviation signal, cross-correlation coefficients for the echo estimations produced by both filters may be determined for each frequency bin of the far end signal. The determined cross-correlation coefficients may be summed across a plurality of the frequency bins. A hysteresis function may then be applied to the sum associated with the filter associated with the echo estimation used to generate a filtered result. The deviation signal may be activated in response to the hysteresis function outputting a high value, which the control logic uses to turn off adaptation by the background filter.

Abstract: Aspects of the disclosure include hybrid cost model-based techniques for evaluating query execution plans. A non-limiting example method includes inputting, to a plurality of base cost models including one or more learned cost models and a classic cost model, a query and a search space including a plurality of candidate query execution plans. Each base cost model outputs a predicted execution time or cost for each plan of the plurality of candidate query execution plans and a real execution time for each plan is determined. The method includes generating a training label including the query and a model of the base cost models having a highest correlation between the predicted and real execution times and training a query classifier on training data including the training label to predict which base cost model of the plurality of base cost models is a most suitable cost model for planning a given query.

Abstract: This application provides an image blur degree determining method and a related device thereof, and relates to the field of image processing. The image blur degree determining method includes: obtaining an original image; determining a homography transformation matrix corresponding to each image block arranged in a column direction in the original image, where the column direction is perpendicular to a row direction in which an electronic device performs row-by-row exposure; and determining a blur degree of the original image based on each image block and the corresponding homography transformation matrix. This application can implement an objective of quickly calculating a blur degree of an image without being affected by image content.

Abstract: A rolling-up screen includes a roller holder, a roller, a screen, a driving assembly, and multiple groups of supporting protection pieces. The roller holder is connected to a ceiling by a frame, or supported by a frame. The roller is rotatably connected between two plates of the roller holder. The screen includes display units in multiple rows and connected with the roller by hanging steel wire. The screen can be wound around the roller after retracting, and suspended below the roller by the hanging steel wire after unfolding. The driving assembly is arranged on the roller holder and connected with the roller to drive the roller to rotate, so as to enable the screen to be retracted and wound on the roller or unfolded and hung below the roller. The supporting protection pieces are arranged on the back surfaces of the display units in each row.

Abstract: Disclosed in the present disclosure is an intelligent obstacle avoidance method. An obstacle in a current path may be detected; a first obstacle avoidance path is generated with a first parameter based on a detection result, and a mowing robot is controlled to operate; if the obstacle is detected again in the first obstacle avoidance path, a second obstacle avoidance path is generated with a second parameter, and the mowing robot is controlled to operate; and the above steps are repeated until the obstacle is bypassed.

Abstract: An operation map construction method disclosed in embodiments of the present disclosure may include: acquiring laser point cloud data in an environment corresponding to a target map; determining candidate obstacles in the target map based on the laser point cloud data; obtaining feature images of the candidate obstacles and determining a target obstacle from the candidate obstacles based on the feature images; and delineating an operational area and a non-operational area in the target map based on the target obstacle.

Abstract: A routing-policy-based global user compliance access method and an apparatus are provided. The method includes steps of: initiating, by a user, a login request to a unified user gateway if there is a user login behavior; sending, by an authentication unit, an authenticated user request to a local user center for processing, and to the global user center for global query if the user is a non-local user; initiating, by the user, a business request to the unified user gateway if there is a user business operation behavior; routing the request to an application program interface after being passed by the authentication unit; sending, by the application program interface, the business request to the local user center for business processing, and to a global business center for routing policy query and redirecting to the remote user center to which the user belongs if the user is the non-local user.

Abstract: Methods, including high-throughput, automated methods for preparing, by mechanical and/or robotic means, monocot leaf explants for transformation, are provided.

Abstract: A radar sensing system is for being disposed on a vehicle. The radar sensing system includes a sensing unit and a housing. The sensing unit includes a receiving antenna array, which includes at least four receiving antennas. The receiving antennas are arranged on an antenna plane and have a receiving antenna center. A distance between the receiving antenna center and a ground plane is greater than 40 cm. The receiving antennas are arranged asymmetrically with respect to the receiving antenna center. The housing includes a bottom surface, which is attached on an outer surface of the vehicle. The sensing unit is disposed in the housing. An antenna plane angle between the antenna plane and the outer surface of the vehicle is in a range of 0 degrees to 90 degrees.

Abstract: A display panel includes a display region and a photoelectric sensing region, a plurality of spacer, a plurality of first support pillars, a plurality of second support pillars, and a plurality of third support pillars. The display region is located outside the photoelectric sensing region; and the photoelectric sensing region includes a light transmitting region and a frame area surrounding the light transmitting region, and the frame region includes: a first region, a second region, and a third region. The plurality of the spacers are arranged in an array, and located within the display region, but not located within the light transmitting region. The plurality of the first support pillars are located within the first region. The plurality of the second support pillars are located within the second region. The plurality of the third support pillars are located within the third region.

Abstract: An operation and maintenance method and system for automatically and uniformly managing nodes of bastion host can be abstracted as follows: master control dispatches a Master of a certain area node to issue and execute a certain task, and unified management is naturally achieved; the design concept can be continued subsequently. A Master host in the node serves as a master controller of the node, and related contents including a tool script library, a crontab task and a configuration file are preset in a Redis of the node in advance; when a new machine is accessed to a certain node, the new machine performs Salt-Master access management of the node where the new machine is located, and the corresponding machine is controlled to complete the corresponding task through a takeover program; therefore, unified and automatic management is realized.

Abstract: The present disclosure provides a method for rapid and harmless treatment of a livestock and poultry carcass/residue by a bacterium-enzyme complex and relates to the technical field of dead livestock and poultry treatment. In the present disclosure, a composite microbial inoculant is compounded from protease-, lipase-, and keratinase-producing strains, and can be applied to the degradation of fats and proteins as well as deodorization. The composite microbial inoculant is further combined with a protease preparation and a lipase preparation to prepare the bacterium-enzyme complex. The bacterium-enzyme complex can quickly and harmlessly treat the carcasses/residues of pig, cattle, sheep, and chicken, and has a short treatment period, mild and controllable reaction conditions, and safe and non-toxic reaction process and reaction products. During the reaction, harmful gases such as CH4 and NH3 and greenhouse gases such as CO2 released by the method are less than those by other methods.

Abstract: A drying apparatus, particularly suitable for disposing water-containing organic waste. The drying apparatus includes a drying chamber with a circular cross-section, where waste enters the drying chamber through a waste inlet and undergoes rotational movement within the drying chamber due to a negative pressure generated by an air pump. The air pump draws out airflow from the drying chamber through an air duct connected to the flow outlet, ensuring that the waste continues to rotate during the drying process. Additionally, the apparatus is equipped with a microwave generating device, which directs microwaves into the drying chamber either directly or via a microwave conduit to efficiently dry the waste. This design combines the cyclonic motion with microwave heating, significantly enhancing drying efficiency and ensuring that the waste is fully dried in a short time, making it particularly suitable for disposing organic residue that requires rapid drying.

Abstract: Provided is a use of nintedanib or a pharmaceutically acceptable salt thereof in preparing a drug for treating tuberculosis. The nintedanib or the pharmaceutically acceptable salt thereof is used in combination with a further anti-tuberculosis drug for treating tuberculosis, or used as an adjuvant drug for the treating tuberculosis, where the further anti-tuberculosis drug is selected from a group consisting of: rifampicin, isoniazid, pyrazinamide, ethambutol, fluoroquinolone, streptomycin, kanamycin, amikacin, capreomycin, sodium para-aminosalicylate, ethionamide, cycloserine, clofazimine, and linezolid.

Abstract: Europium doped tin perovskites useful in the fabrication of optoelectronic devices exhibiting improved stability and high-power conversion efficiencies and perovskite precursor solutions used to prepare the europium doped tin perovskite, wherein the europium doped tin perovskite can be represented by Formula 1: (A+)(Sn2+)(X?)3·m[(Eu2+)(Y?)2]??1 wherein m is 0.001-0.05; X? for each instance is independently F?, Cl?, Br?, or I?; Y? for each instance is independently F?, Cl?, Br?, or I?; and A+ is Cs+, Rb+, CH3NH3+, CH3CH2NH3+, H(C?NH2)NH2+, Me(C?NH2)NH2+, or a mixture thereof.

Abstract: A display panel includes a liquid crystal cell, a first polarizing assembly and a second polarizing assembly. The liquid crystal cell includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate. The first polarizing assembly is disposed on a side of the first substrate further away from the liquid crystal layer and includes at least a first polarizing layer having a first transmission axis, and the first polarizing assembly is configured for generating polarized light whose polarization direction is parallel to the first transmission axis. The second polarizing assembly is located on a side of the second substrate further away from the liquid crystal layer and includes at least a transflective layer and a light absorbing layer.

Abstract: A high angular resolution processing method for MIMO system applies a symmetric array antenna for receiving an input signal matrix. The input signal matrix is a transmission signal or reflex signal of at least one target object. The method includes following steps. Step S1: outputting a conversion matrix according to an amount of the symmetric array antenna; step S2: performing a real number conversion using the input signal matrix and a plurality of angle-related pursuit matrixes through the conversion matrix, obtaining a real number input signal matrix and real number pursuit matrixes; and step S3: inputting the real number input signal matrix and the real number pursuit matrixes to an orthogonal matching pursuit model. Obtaining an amount of the target object and an angle of a location corresponding to the target object.