Abstract: The present invention provides an attention detection method based on a cascade neural network, a computer apparatus, and a computer-readable storage medium. The method includes: obtaining video data, recognizing a plurality of image frames, and extracting a face region of the plurality of image frames; recognizing the face region by using a first convolutional neural network to judge whether a first situation of inattention occurs; and recognizing, if it is confirmed that no first situation of inattention occurs, the face region by using a second convolutional neural network to judge whether a second situation of inattention occurs, where computational complexity of the first convolutional neural network is less than computational complexity of the second convolutional neural network. The present invention further provides the computer apparatus for implementing the foregoing method and the computer-readable storage medium.

Abstract: A solution circulation concentrating device with high solar energy utilization efficiency and a concentrating method using the same are provided, and relate to the technical field of solution concentration equipment. The device includes a concentrated solution collecting tray, an evaporator, a rotation driving device, a liquid inlet pipe, a liquid outlet pipe, a liquid storage tank, a filter tank, and a rainwater discharge pipe. The concentrated solution collecting tray is rotatably connected with the evaporator. The evaporator is connected with the rotation driving device. The rotation driving device is configured for driving the evaporator to rotate. The liquid inlet pipe and the liquid outlet pipe are arranged at the concentrated solution collecting tray. The liquid inlet pipe is configured to pass through the evaporator.

Abstract: A decarboxylation coupling electrocatalysis method for catalyzing an aromatic trimethyl ammonium salt and ?-nickel ketonate is provided. The method includes the following steps: step 1, adding aryl-ammonium trifluoromethyl sulfonate, ?-keto acid and sodium acetate in a molar ratio of 1:2:2 into a reaction bottle in a nitrogen atmosphere, adding an electrolyte n-Bu4NBF4, and then adding a mixed solution of acetonitrile and N,N-dimethylformamide, where a volume ratio of the acetonitrile to the N,N-dimethylformamide is 1:4; and step 2, stirring a mixture in step 1 so as to dissolve the mixture, inserting two electrodes, using a graphite electrode as a positive electrode and a nickel electrode as a negative electrode, adding water for stirring after a reaction, and conducting extraction, drying and purification to obtain an aromatic ketone compound.

Abstract: A combined sensitive term detection method and apparatus, and a cluster are provided to improve accuracy of sensitive term detection. In this application, after obtaining a combined sensitive term expression provided by a user, a detection apparatus parses the combined sensitive term expression provided by the user, to generate a user combined sensitive term entry. The user combined sensitive term entry and a preset candidate combined sensitive term entry are stored in a combined sensitive term library. The detection apparatus detects, based on the combined sensitive term library, a collected to-be-detected text to obtain a first matching result, where the first matching result indicates a hit combined sensitive term entry; and presents the first matching result to the user.

Abstract: The present disclosure provides an inversion method for determining a pollution source list based on artificial intelligence and big data, an inversion system for determining the pollution source list based on artificial intelligence and big data, and applications thereof, which provides basic data support for government sectors to formulate relevant environmental protection measures. The specific technical solution employed in the present disclosure is as follows: finding out an emission source that makes the highest contribution to the pollutant concentration of any cell with an advanced 3D CNN artificial intelligence algorithm based on artificial intelligence and big data, establishing a model of the relationship between pollutant concentration and emission, and finding out the relationship between pollutant concentration and emission with machine learning technology, i.e., estimating an emission from a given pollutant concentration, and estimating a pollutant concentration from a given emission.

Abstract: A molecular marker combination linked to quantitative traits of tea plant (+)-catechin content, including a SNP site 1, a SNP site 2, a SNP site 3, a SNP site 4, a SNP site 5, a SNP site 6, a SNP site 7 and a SNP site 8, which are located in tea genomes Scaffold4239:309117, Scaffold3614: 66549, Scaffold349: 3413816, Scaffold1989: 2316385, Scaffold451: 940283, Scaffold3727:442660, Scaffold115:803980 and Scaffold920:281727, respectively, and genotypes thereof are extremely significantly correlated with the (+)-catechin content is provided. A detection method for detecting each site, and one or more molecular marker site is used to evaluate the tea plant (+)-catechin content.

Abstract: This application provides a positive electrode plate and a preparation method thereof, an electrode assembly, a battery cell, and a battery and pertains to the field of battery technologies. The method for preparing a positive electrode plate includes: providing an adhesive liquid on at least one surface of at least partial to-be-bent position of a positive electrode current collector and curing it to form an adhesive layer, and forming a positive electrode active material layer on at least one surface of the positive electrode current collector having the adhesive layer. The adhesive liquid is first provided on at least one surface of the to-be-bent position of the positive electrode current collector and cured to form the adhesive layer, and then the positive electrode active material layer is formed.

Abstract: Apparatus and method for disposing a human worn apron, which is at least partially constructed of a radiopaque material, between an x-ray source and a digital radiographic detector. Radiographic images of the human worn apron are captured in the detector after exposure by the radiographic source so that the radiographic images may be examined to identify gaps or areas that may be worn out or eroded in the radiopaque material.

Abstract: A thermal-power power electronic direct-hung energy-storage plant backup power system includes a thermal-power grid connection startup/standby unit, a power electronic energy-storage switching unit and a thermal-power plant unit. The thermal-power grid connection startup/standby unit is connected to the power electronic energy-storage switching unit and the thermal-power plant unit, respectively. The power electronic energy-storage switching unit is connected to the thermal-power plant unit.

Abstract: The embodiment of the present application discloses a single-well heat exchange system and a downhole enhanced heat exchange device of a geothermal well. The first main pipe communicates with an inner pipe of the single-well heat exchange device, return water entering the inner pipe sequentially enters the first main pipe and the second main pipe, part of the return water directly flows back to a geothermal reservoir, and part of the return water enters an annulus between the inner pipe and an outer casing of the single-well heat exchange device through a through hole of the second main pipe. The part, located at a target reservoir, of the retractable heat exchange pipe is used for absorbing geothermal heat of the target reservoir and transmitting the geothermal heat to an fixed end of the retractable heat exchange pipe to heat the return water entering the first main pipe.

Abstract: The embodiments of this application disclose a communication method, a communication apparatus, and a computer-readable storage medium. The embodiments of this application are applied to a wireless local area network system supporting 802.11 series protocols such as a next-generation Wi-Fi protocol of IEEE 802.11ax like 802.11be, 802.15.4z, 802.15.4ab, Wi-Fi 7, or EHT, and a next generation of 802.11be like Wi-Fi 8, and may be further applied to an ultra-wideband UWB-based wireless personal area network system and a sensing system. The method includes generating a transmit signal, where a peak value of a first sidelobe of the transmit signal falls within a first peak value range. The method further includes sending the transmit signal, where the transmit signal is used for ranging, angle measurement, or Doppler measurement.

Abstract: A detection method for detecting fault of insulator discharge based on image recognition includes the following steps: building an ultraviolet image dataset for an electrical equipment, building a neural network model for insulator discharge detection based on YOLOV5-T, the neural network model includes a CBS module, a CST module, a Concat module, a 1D-attention module, an Upsample module and a Detect module, training the neural network model by utilizing the ultraviolet image dataset for the electrical equipment, to obtain a trained neural network model, and inputting images to be recognized into the trained neural network model, to obtain fault detection results. A detection device is configured to implement the detection method.

Abstract: A point cloud encoding method, including: obtaining attribute information about the attributes of a current point in a point cloud; processing the attribute information of the current point to obtain a residual value of the attribute information of the current point; using a target quantization manner, quantizing the residual value of the attribute information of the current point to obtain a quantized residual value of the attribute information of the current point; the target quantization manner comprises at least two of the following quantization manners: a first quantization manner, a second quantization manner, and a third quantization manner.

Abstract: The invention herein provides an over-current protection system. The over-current protection system includes a sensing device, a comparator, a first transistor, and a second transistor. The sensing device is adapted to sense current flowing to an electrical device. The comparator is adapted to compare a signal received from the sensing device and a reference signal to generate any one of high signal and low signal, the output of the comparator being connected to a control device. The first transistor connected to the output signal of the comparator to control the first transistor, while the first transistor is in a conductive state when the output signal of the comparator is high signal. The second transistor connected to and controlled by the first transistor, while the second transistor is in a conductive state when the first transistor is in the conductive state.

Abstract: The present invention provides protein kinase having one of the following structures (I), (II) or (III): or a stereoisomer, prodrug, tautomer or pharmaceutically acceptable salt thereof, wherein R, R1, R2 and X are as defined herein. Compositions and methods for using the same in the treatment of cancer, autoimmune, inflammatory and other Pim kinase-associated conditions are also disclosed.

Abstract: A photon-counting imaging system is provided. The system includes a photon-counting detector and processing circuitry. The detector acquires, from an imaging object, projection data for a plurality of projection views. The detector has a plurality of detector pixels that are arranged in both a channel direction and a segment direction on a surface of the detector. The processing circuitry obtains the projection data acquired by the detector. The projection data includes first and second projection data. The processing circuitry processes, with a first energy bin setting, the first projection data, the first energy bin setting having m energy bins, and processes, with a second energy bin setting, the second projection data, the second energy bin setting having n energy bins, where n>m. The processing circuitry generates, based on the processed first projection data and the processed second projection data, a material decomposition image of the imaging object.

Abstract: A floating column spoiler structure, a floating column and a floating wind turbine are provided. The floating column spoiler structure includes multiple spoiler plates and lifting and unfolding assemblies connecting each of the spoiler plates and a column. Each of the lifting and unfolding assemblies includes a first connecting rod, a second connecting rod, a first gear and a second gear; a first end of the first connecting rod is rotatably connected with a first end of the second connecting rod, and each of the spoiler plates is arranged at the first end of the first connecting rod and the first end of the second connecting rod; a second end of the first connecting rod is rotatably connected with the first gear, and a second end of the second connecting rod is rotatably connected with the second gear.

Abstract: A decarboxylation coupling electrocatalysis method for catalyzing an aromatic trimethyl ammonium salt and ?-nickel ketonate is provided. The method includes the following steps: step 1, adding aryl-ammonium trifluoromethyl sulfonate, ?-keto acid and sodium acetate in a molar ratio of 1:2:2 into a reaction bottle in a nitrogen atmosphere, adding an electrolyte n-Bu4NBF4, and then adding a mixed solution of acetonitrile and N,N-dimethylformamide, where a volume ratio of the acetonitrile to the N,N-dimethylformamide is 1:4; and step 2, stirring a mixture in step 1 so as to dissolve the mixture, inserting two electrodes, using a graphite electrode as a positive electrode and a nickel electrode as a negative electrode, adding water for stirring after a reaction, and conducting extraction, drying and purification to obtain an aromatic ketone compound.

Abstract: A plasma generation device relates to the field of environmental disinfection. The plasma generation device includes a frame, a discharge needle, and plasma generating barrels. The plasma generating barrels form an array in the frame, without an inter-barrel gap. The discharge needle is provided on a geometric centerline in each of the plasma generating barrels. A distance from a discharge endpoint of the discharge needle to any point on an edge of the plasma generating barrel is identical. In combination with advantages of a circular cylindrical plasma generating barrel and a square cylindrical plasma generating barrel, the plasma generation device maximizes the ventilation rate and the disinfection efficiency of plasma ionization at a most economical voltage.