Abstract: The application relates to the technical field of artificial intelligence, and provides a method, device, electronic equipment and storage medium for positioning macular center in fundus images. The method comprises: acquiring a detection result of the fundus image detection model, wherein the detection result includes an optic disc area, and a first detection block and a first confidence score corresponding to the optic disc area, and a macular area, and a second detection block and a second confidence score corresponding to the macular area; calculating a center point coordinate of the optic disc area according to the first detection block, and calculating a center point coordinate of the macular area according to the second detection block; identifying whether the to-be-detected fundus image is a left eye fundus image or a right eye fundus image, and correcting a center point of the macular area using different correction models.

Abstract: An apparatus includes a light source operable to produce light having a wavelength, an optical component disposed over the light source so as to intersect a path of light produced by the light source, and at least one electrically conductive trace on a surface of the optical component. A drive controller is operable to regulate optical output power of the light source. The at least one electrically conductive trace is coupled electrically to the drive controller, which is operable to monitor an electrical characteristic of the at least one electrically conductive trace, and to reduce the optical output power of the light source if a value of the electrical characteristic is indicative of a possible eye-safety hazard.

Abstract: A suspension roasting system includes a feeding bin, a Venturi dryer, a first cyclone preheater, a second cyclone preheater, a pre-oxidation suspension roasting furnace, a thermal separation cyclone cylinder, a suspension and reduction roasting furnace, a collecting bin, a grinding machine, a magnetic ore separator and a draught fan.

Abstract: The present invention relates to the field of sheet hot stamping and sheet metal parts manufacturing, and provides a hot bath forming process for high-corrosion-resistance easy-to-weld hot-pressed parts. The process comprises the following steps: S1, heating a coated hot-formed steel sheet material in a heating furnace, and heating to a completely austenitized state; S2, transferring the heated coated hot-formed steel sheet material into a boiling water tank, immersing the heated coated hot-formed steel sheet material into boiling water, and cleaning an oxide layer; S3, forming the coated hot-formed steel sheet material under the combined action of boiling water and an upper mold and a lower mold, and performing pressure maintaining and quenching to obtain parts; and S4, taking out the parts for air blowing or drying the parts in a drying furnace to remove water in the coating of the parts.

Abstract: An array substrate includes a substrate, a first metal layer, a first insulating layer, an active layer, a first electrode, a second metal layer, a second insulating layer, and a second electrode. The first insulating layer covers the first metal layer. The active layer on the first insulating layer and overlaps a gate of the first metal layer. The first electrode on the first insulating layer is spaced apart from the active layer. A portion of the second metal layer is located on the active layer. The second metal layer includes a first metal electrode connected to the active layer and a second metal electrode which is separated from the first metal electrode, and connected to the active layer and the first electrode. The second insulating layer covers the second metal layer, the first electrode, and the active layer. The second electrode is disposed on the second insulating layer.

Abstract: The present invention relates to a vehicle logo assembly and a method for forming a vehicle logo assembly. The vehicle logo assembly has a housing and a cover, the housing and the cover form an internal space, and a light-emitting assembly and a light-diffusing assembly are accommodated in the internal space, wherein, a coating is provided on the inner side of the cover facing the light-emitting assembly, so as to present a vehicle logo, and the cover is provided with a light-transmitting portion.

Abstract: Apparatuses and methods for pipelining memory operations with error correction coding are disclosed. A method for pipelining consecutive write mask operations is disclosed wherein a second read operation of a second write mask operation occurs during error correction code calculation of a first write mask operation. The method may further including writing data from the first write mask operation during the error correction code calculation of the second write mask operation. A method for pipelining consecutive operations is disclosed where a first read operation may be cancelled if the first operation is not a write mask operation. An apparatus including a memory having separate global read and write input-output lines is disclosed.

Abstract: A suspension roasting system includes a feeding bin, a Venturi dryer, a first cyclone preheater, a second cyclone preheater, a pre-oxidation suspension roasting furnace, a thermal separation cyclone cylinder, a suspension and reduction roasting furnace, a collecting bin, a grinding machine, a magnetic ore separator and a draught fan.

Abstract: Disclosed are the expression of a recombinant chicken IgY scFv antibody and monoclonal antibody raised against human thymidine kinase 1 (hTK1) in prokaryotic cells and a preparation method and use thereof. The scFv antibody includes an amino acid sequence shown in SEQ ID NO: 1. The anti-hTK1 recombinant scFv antibody and monoclonal antibody have good immunoreactivity, high specificity and sensitivity, and are easy to separate and purify.

Abstract: A method of enhanced oil recovery that includes injecting a composition including an hyperbranched polyglycerol into an injection well in a subterranean oil-bearing reservoir, the hyperbranched polyglycerol being a primary alcohol that is a reaction product of a C2 to C25 carbon alcohol and a plurality of glycidols; and displacing oil in the subterranean oil-bearing reservoir using the composition.

Abstract: The present disclosure relates to an artificial intelligence field using a neural network, and publishes a method for confirming a cup-disc ratio based on a neural network, an apparatus, a computer device, and a computer readable storage medium. The method includes: obtaining a retinal image, and detecting an optical disc region in the retinal image to obtain the optical disc region; inputting the optical disc region into a pre-trained neural network to obtain a prediction cup-disc ratio and segment images of an optical cup and an optical disc; computing a cup-disc ratio based on the segment images of the optical cup and the optical disc; and confirming a practical cup-disc ratio based on the prediction cup-disc ratio and the computed cup-disc ratio.

Abstract: An inhibitor for resisting muskmelon powdery mildew as well as preparation method and application thereof are provided, belonging to the technical field of muskmelon culturing. In order to solve the technical problems that muskmelon powdery mildew has caused serious influence on growth and yield of muskmelon, the disclosure uses an inhibitor containing allantoin for resisting muskmelon powdery mildew to spray leaves of the muskmelon in a seedling stage or a spreading stage of the muskmelon, which effectively increases the resistance of the muskmelon to powdery mildew. The disclosure has great significance for improving the yield and quality of the muskmelon.

Abstract: A mixed rare earth concentrate mineral and suspended mineral phase transformation-clean leaching system and a use method thereof are provided. The system comprises a Venturi dryer, a multi-stage separator, a suspension preheating decomposition furnace, a multi-state fluidization sealing valve, a mineral phase transformation machine, a ball mill, a multi-stage acid leaching tank, an alkali leaching tank and a neutralization tank.

Abstract: A heterocyclic derivative inhibitor and a preparation method therefor and an application thereof. Specifically, the present invention relates to a compound represented by general formula (I), a preparation method therefor, a pharmaceutical composition comprising said compound, and an application of same as an inhibitor for treatment of cancers, wherein substituents in general formula (I) are as defined in the description.

Abstract: Embodiments of this application provide a wireless communication system and an electronic device. A first high-frequency integrated circuit in the wireless communication system includes a high-frequency control unit, a first diplexer, and a second diplexer. An intermediate-frequency integrated circuit includes an intermediate-frequency control unit, a third diplexer, and a fourth diplexer. A control signal is transmitted between the high-frequency control unit and the intermediate-frequency control unit. The control signal includes an instruction data signal and an echo clock signal. A phase of the instruction data signal is synchronized with a phase of the echo clock signal, and a frequency of the instruction data signal and a frequency of the echo clock signal are in a co-frequency relationship or a frequency multiplication relationship.

Abstract: An embedded storage device with a plurality of storage devices is used to obtain the firmware version of the plurality of storage devices, align a transmission configuration of at least one of the plurality of storage devices downward according to the firmware version of each of the plurality of storage devices for determining a final transmission configuration, and enable the plurality of storage devices to read and write with the same final transmission configuration.

Abstract: Ferrocenyl-based unsymmetrical ligands containing di(1-adamantyl)phosphino groups with general formula, Fc(Ad2P) (R2P) and corresponding metal complexes, include metal halide complexes, N-biphenyl metal cationic complexes and R-allyl metal cationic complexes, useful in catalysis. The ligands and complexes overcome problems with conventional catalysts, providing new routes to previously challenging cross-coupling reactions, including C—P coupling, Csp2—Csp3 coupling and other conventional cross-coupling applications, while being scalable so that they can be provided in sufficient quantity and purity for industrial applications.

Abstract: Disclosed are a method and system for detecting a complex multi-step attack in an electric power system. The method includes: collecting interaction behavior data of a network entity; preprocessing the interaction behavior data of the network entity based on a heterogeneous graph to obtain input data; and inputting the input data into a complex multi-step attack detection module to obtain an attack detection result. Information is extracted from the interaction behavior data to construct a node and an edge of the heterogeneous graph. Timestamp information of a destination node and an adjacent source node of the destination node is input into a Time2Vec layer to obtain a first time embedding representation. Data that fuses node feature information and the first time embedding representation is input into a Heteformer layer, and a second node embedding representation is obtained as input data and input into the complex multi-step attack detection module.

Abstract: A voiceprint recognition method includes: obtaining a target speech information set to be recognized that includes speech information corresponding to at least one object; extracting target feature information from the target speech information set by using a preset algorithm, and optimizing the target feature information based on a first loss function to obtain a first voiceprint recognition result; obtaining target speech channel information of a target speech channel, where the target speech channel information includes channel noise information, and the target speech channel is used to transmit the target speech information set; extracting target feature vectors in the channel noise information, and optimizing the target feature vectors based on a second loss function to obtain a second voiceprint recognition result; and fusing the first voiceprint recognition result and the second voiceprint recognition result to determine a final voiceprint recognition result.

Abstract: A method for preparing a weathered coal-derived humic acid/urea-formaldehyde slow-release fertilizer granule by reactive extrusion process with depolymerization-activation-polycondensation trinity is provided. In an alkaline environment, paraformaldehyde is depolymerized into formaldehyde small molecules, which react with urea to form monohydroxymethylurea and dihydroxymethylurea. Under the strong shearing action of screws of the twin-screw reactive extruder, the macromolecular weathered coal-derived humic acid is depolymerized into relatively small molecule weathered coal-derived humic acid, and abundant active carboxyl groups are exposed, some of which immediately undergo dehydration condensation with —NH2 on the urea-formaldehyde molecule produced by the polycondensation of hydroxymethylurea during the reactive extrusion process to generate weathered coal-derived humic acid/urea-formaldehyde and its granules.