Abstract: A computer-executable method relating to weeds, and a computer system. The method comprises: receiving an image (S11); recognizing one or more plants in the image in order to obtain the classification and/or names of the plants, and determining whether the plants are weeds (S12); and in response to determining that at least one plant is a weed, outputting information indicating that the at least one plant is a weed (S13).

Abstract: A method and system of recognizing and processing object edges and a computer-readable storage medium are provided. The method includes: obtaining an input image, where the input image includes an object with edges, and the edges of the object include a plurality of object vertices; recognizing, through an object vertex recognition model, the input image and obtaining a relative position of each object vertex and a corresponding image vertex thereof; determining an actual position of each object vertex in the input image according to the relative position of each object vertex and the corresponding image vertex thereof; and sequentially connecting adjacent object vertices to form edge lines to obtain the edges of the object with edges in the input image according to the actual position of each object vertex in the input image.

Abstract: A method and system of recognizing object edges and a computer-readable storage medium are provided. The method includes: obtaining an input image; recognizing the input image and obtaining a relative position of each object vertex and a corresponding image vertex thereof; determining a reference position of each object vertex in the input image according to the relative position of each object vertex and the corresponding image vertex thereof; performing corner point detection in a predetermined area where the reference position of the object vertex is located for each object vertex; determining an actual position of each object vertex in the input image according to a result of the corner point detection; and sequentially connecting adjacent object vertices to form edge lines to obtain the edges of the object with edges in the input image according to the actual position of each object vertex in the input image.

Abstract: A power tool includes a main body and a battery pack. The main body includes a housing and a motor, a switch assembly, and an electronic control device. The electronic control device is electrically connected to the switch assembly and the motor. The electronic control device includes an electronic control assembly, a mounting base, and a connecting assembly. The electronic control assembly includes a power circuit board. The power circuit board is provided with an opening. The connecting assembly conductively connects the battery pack to the electronic control assembly, connects to the mounting base via the opening, and mates with the mounting base to form a mounting space in which the electronic control assembly is mounted.

Abstract: The present disclosure provides a high-temperature-resistant deep penetration molecular membrane acid copolymer and a preparation method thereof. The copolymer is formed by polymerizing four raw monomers including 2-acrylamido-2-methylpropanesulphonic acid, vinyl phosphonic acid, alkyl dimethylallyl ammonium chloride, and perfluoropolyether acrylate. The method comprises: S1: mixing and stirring solvent oil, an emulsifier, the alkyl dimethyl allyl ammonium chloride, and the perfluoropolyether acrylate to be dispersed homogeneously to obtain an oil phase; S2: mixing and stirring the 2-acrylamido-2-methylpropanesulphonic acid, the vinyl phosphonic acid, a complexing agent, and distilled water, and adjusting pH to obtain an aqueous phase; S3: slowly dropwise adding the aqueous phase to the oil phase; and S4: introducing nitrogen into the water-in-oil emulsion to remove oxygen, then adding an initiator and carrying out a heating polymerization reaction to obtain copolymer emulsion (i.e.

Abstract: The disclosure relates to a training method of an object recognition model, an object recognition method, and an object recognition device. The training method includes: acquiring a training set, in which the training set includes a plurality of groups of input samples for training and marking results corresponding to the input samples, each input sample includes an object image and metadata, and the metadata is configured to describe a corresponding object image; on the basis of a neural network, training an object recognition model by using the training set; and ending the training when a training accuracy is greater than or equal to a preset accuracy, and obtaining a trained object recognition model.

Abstract: The present application relates to a compound serving as a selective PI3K? kinase inhibitor, comprising the compound shown in formula (I) or a pharmaceutically acceptable salt, solvate, ester, acid, metabolite or prodrug thereof, wherein X, R1, R2, R3, R4, R5 and R6 are as defined in the description. The present application also relates to a method for using the kinase inhibitor to inhibit PI3K? kinase activity or to treat or prevent diseases or conditions associated with tyrosine kinase activity of PI3K?, as well as a use thereof.

Abstract: Provided are a vacuum distillation furnace, and a method for preparing high-purity copper particles. In view of the fact that high-purity copper prepared by the traditional method in the current industrial production has an unsatisfactory purity, a high impurity content, and a complicated composition, a vacuum distillation method is adopted. During the vacuum distillation method, most of valuable metals in a copper matrix are volatilized and enter into a gas phase, such that the metals are separated from the copper matrix, thereby allowing the purification of copper; and copper powder particles volatilized to a condensation plate have a smooth surface and a purity of 5 N grade or more.

Abstract: The present disclosure provides a fiber laser light coherent combination system, comprising: a modulator module configured to perform a phase modulation on sub-beams according to pseudo-random sequences orthogonally independent from each other, and perform a frequency shift on a reference beam according to a set frequency; a fiber laser light amplifier module configured to perform a power amplification on the modulated sub-beams; a laser light collimation emission module configured to collimate and output the sub-beams and the reference beam; a combination sampling module configured to perform a combination of the sub-beams and the reference beam which are collimated and outputted, and convert them into an electrical signal; a digital phase modulation and demodulation module configured to perform a demodulation on the electrical signal according to the shifted frequency and each of the pseudo-random sequences, and obtain a phase difference between each of the sub-beams and the reference beam.

Abstract: The present invention relates to a compound for treating gout, a preparation method therefor and the use thereof. The compound is as represented by formula I. Disclosed in the present invention are a method for preparing the compound and the use of the compound in the preparation of a drug for treating or preventing gout. Further disclosed in the present invention is a composition product containing the compound. The compound provided by the present invention can be used for treating inflammation and gout, and can also be used for treating cancers.

Abstract: Disclosed herein is an electrode material comprising: a non-woven silk-fibroin mesh substrate; glycerol; and a conductive polymeric material, wherein 40-65% of the silk-fibroin in the non-woven mesh substrate is in the form of ?-sheets, and the electrode material is stretchable. Also disclosed herein is a method of forming said electrode material.

Abstract: The present disclosure provides a fiber laser light coherent combination system, comprising: a modulator module configured to perform a phase modulation on sub-beams according to pseudo-random sequences orthogonally independent from each other, and perform a frequency shift on a reference beam according to a set frequency; a fiber laser light amplifier module configured to perform a power amplification on the modulated sub-beams; a laser light collimation emission module configured to collimate and output the sub-beams and the reference beam; a combination sampling module configured to perform a combination of the sub-beams and the reference beam which are collimated and outputted, and convert them into an electrical signal; a digital phase modulation and demodulation module configured to perform a demodulation on the electrical signal according to the shifted frequency and each of the pseudo-random sequences, and obtain a phase difference between each of the sub-beams and the reference beam.

Abstract: The invention provides a silk fibroin-based anti-counterfeiting mark comprising a silk fibroin film layer and a gold film layer located on the silk fibroin film layer, and the area of the gold film layer is less than that of the silk fibroin film layer. The inventive also provides a method for preparing the silk fibroin-based optical anti-counterfeiting mark, the method comprises preparing an aqueous silk fibroin solution, coating the aqueous silk fibroin solution onto a substrate to obtain a silk fibroin film, and sputtering a layer of gold film on the silk fibroin film with a mask to obtain the silk fibroin-based optical anti-counterfeiting mark. In the invention a thin layer of Au film is sputtered on a silk fibroin film such that an anti-counterfeiting mark pattern appears at a high humidity, the method is simple and can significantly the production cost of optical anti-counterfeiting mark.

Abstract: The invention provides a silk fibroin-based anti-counterfeiting mark comprising a silk fibroin film layer and a gold film layer located on the silk fibroin film layer, and the area of the gold film layer is less than that of the silk fibroin film layer. The inventive also provides a method for preparing the silk fibroin-based optical anti-counterfeiting mark, the method comprises preparing an aqueous silk fibroin solution, coating the aqueous silk fibroin solution onto a substrate to obtain a silk fibroin film, and sputtering a layer of gold film on the silk fibroin film with a mask to obtain the silk fibroin-based optical anti-counterfeiting mark. In the invention a thin layer of Au film is sputtered on a silk fibroin film such that an anti-counterfeiting mark pattern appears at a high humidity, the method is simple and can significantly the production cost of optical anti-counterfeiting mark.

Abstract: Electric valve and a refrigerating system. An inlet, a pressure relief port and a plurality of outlets are set on a valve seat of the electric valve; a valve cap is covered above the valve seat; an electric motor is fixedly set on the valve cap, a stator of the electric motor is set on the outer surface of the valve cap, and a rotor is set in the intracavity of the valve cap; the lower end of a mandrel is fixedly provided with a valve core that is opened with a pressure-relief diversion slot and a through slot, wherein the pressure-relief diversion slot is opened on the lower surface of the valve core, the through slot penetrates through the valve core along the thickness direction of the valve core. Refrigerant bifurcation, cutoff, pressure relief, etc., in refrigerating system is realized by rotating the valve core to different positions.

Abstract: Methods and apparatuses for data storage and retrieval have been provided. More specifically, a hash table is provided. The hash table comprises a first level slot array with a constant number of slots and at least one second level slot array with a variant number of slots. Each slot of the first level slot array is associated with a hash code range, and each slot of the first level slot array is linked to at most one second level slot array. Various operations, such as PUT, GET, RANGE_SEARCH of the hash table have been described. Moreover, a hash method has been provided for network management information to use the proposed hash table.

Abstract: The present invention discloses an electric valve and a refrigerating system comprising the same, wherein an inlet (411), a pressure relief port (412) and a plurality of outlets (413) are set on a valve seat (41) of the electric valve; a valve cap (43) is covered above the valve seat (41); an electric motor (42) is fixedly set on the valve cap (43), a stator (421) of the electric motor (42) is set on the outer surface of the valve cap (43), and a rotor (422) is set in the intracavity of the valve cap (43); the lower end of a mandrel (4221) is fixedly provided with a valve core (44) that is opened with a pressure-relief diversion slot (441) and a through slot (442), wherein the pressure-relief diversion slot (441) is opened on the lower surface of the valve core (44), and the through slot (442) penetrates through the valve core (44) along the thickness direction of the valve core (44).

Abstract: The present disclosure relates to a method for performing one or more managed object (MO) operations, the method comprising: receiving a request for said one or more MO operations, the request including one or more manipulation entries, each of said one or more manipulation entries corresponding to each of said one or more MO operations; obtaining said one or more manipulation entries from the received request; and for each of said one or more manipulation entries, performing an MO operation corresponding to the manipulation entry.

Abstract: A method of reducing power consumption of a Radio Network Controller with a plurality of control units in a wireless communication system, each of the control units including one or more processors, the control units being adapted to operate in an active mode or adopt a power saving mode and a first control unit i operating in the active mode, the method comprising the steps of measuring a degree of utilization Cwi of the first control unit i, comparing the degree of utilization Cwi of the first control unit i with a first threshold Tsli, and changing the mode of the first control unit i to a power saving mode after a predetermined first period of time if the degree of utilization of the first control unit i is below the first threshold Tsli.

Abstract: A method of reducing power consumption of a Radio Network Controller with a plurality of control units in a wireless communication system, each of the control units including one or more processors, the control units being adapted to operate in an active mode or adopt a power saving mode and a first control unit i operating in the active mode, the method comprising the steps of measuring a degree of utilization Cwi of the first control unit i, comparing the degree of utilization Cwi of the first control unit i with a first threshold Tsli, and changing the mode of the first control unit i to a power saving mode after a predetermined first period of time if the degree of utilization of the first control unit i is below the first threshold Tsli.