Abstract: Disclosed is a method for producing battery-grade nickel sulfate by using laterite nickel ore comprising the following steps: sorting the laterite nickel ore to obtain lump ore and sediment ore; crushing the lump ore, and then performing heap leaching, to obtain a crude nickel sulfate solution A; separating the sediment ore to obtain high chromium ore, low iron, high magnesium ore, and high iron, low magnesium ore, and drying, roasting, reducing, and sulfurating the low iron, high magnesium ore to obtain low nickel matte; blowing and performing water extraction on the low nickel matte, and then performing oxygen pressure leaching, to obtain a crude nickel sulfate solution B; performing pressure leaching on the high iron, low magnesium ore to obtain a crude nickel sulfate solution C; and performing extraction on the crude nickel sulfate solutions A, B, and C, and then evaporating and crystallizing, to obtain battery-grade nickel sulfate.

Abstract: Provided are an image fusion method and apparatus, an electronic device, and a storage medium. The method includes the following steps: A shooting operation acting on a first page of a target shooting activity is received, where the first page is an H5 page; in response to the shooting operation, a camera is called through system shooting software to collect an original image; a fusion operation for the original image is received; and in response to the fusion operation, the original image is fused with a first target effect, a static target image that includes a static image obtained by fusing the original image with the first target effect and the first description information related to the static image is generated, and the static target image is displayed on a second page, where the second page is an H5 page.

Abstract: A method of locating a temperature anomalies of a distributed optical fiber includes the steps of: (a) generating a training dataset having training samples; (b) setting labels for training samples; (c) building a convolutional neural network composed of multi-layer convolutional networks and a fully connected layer, training to form a convolutional neural network model; (d) utilizing a fiber-optic temperature sensing system for measurement of testing object; (e) sending acquired data into the convolutional neural network model to obtain output features, then processing mapping and binarization; (f) offsetting the binary feature to obtain an offset feature and calculating a cosine similarity; and (g) obtaining a location of the abnormal temperature event by identifying the offset feature with a largest cosine similarity and identifying its location in the sequence P.

Abstract: The present disclosure belongs to the field of petroleum engineering, and specifically relates to a subsea Christmas tree re-prediction method integrating Kalman filter and Bayesian network. The subsea Christmas tree re-prediction method integrating Kalman filter and Bayesian network includes three steps: digital twin model establishment, degradation process re-prediction model establishment, and remaining useful life calculation model establishment.

Abstract: A prediction method of part surface roughness and tool wear based on multi-task learning belong to the file of machining technology. Firstly, the vibration signals in the machining process are collected; next, the part surface roughness and tool wear are measured, and the measured results are corresponding to the vibration signals respectively; secondly, the samples are expanded, the features are extracted and normalized; then, a multi-task prediction model based on deep belief networks (DBN) is constructed, and the part surface roughness and tool wear are taken as the output of the model, and the features are extracted as the input to establish the multi-task DBN prediction model; finally, the vibration signals are input into the multi-task prediction model to predict the surface roughness and tool wear.

Abstract: The present disclosure belongs to the field of petroleum engineering, and specifically relates to a subsea Christmas tree re-prediction method integrating Kalman filter and Bayesian network. The subsea Christmas tree re-prediction method integrating Kalman filter and Bayesian network includes three steps: digital twin model establishment, degradation process re-prediction model establishment, and remaining useful life calculation model establishment.

Abstract: A packaging structure and fabrication method thereof are provided. The method includes: providing semiconductor chips including soldering pads and metal bumps; providing a base plate, wiring structures, input terminals, and output terminals; mounting the semiconductor chips on the front surface of the base plate inversely, such that each metal bump is connected to a corresponding input terminal; forming a bottom filling layer between a functional surface of each semiconductor chip and the front surface of the base plate; forming a first shielding layer covering a non-functional surface and sidewalls of each semiconductor chip, and covering sidewalls of a corresponding bottom filling layer; forming a second shielding layer on each first shielding layer; forming a plastic encapsulation layer on second shielding layers and on a portion of the base plate between semiconductor chips; and forming external contact structures connected to the output terminals.

Abstract: An array substrate, a display, and a manufacturing method are provided. The array substrate is provided with a first notch on at least one of two sides in a width direction of the second fan-out line, wherein a portion of the insulating layer fills into the first notch in a direction towards the second fan-out line to form a recess part corresponding to the first notch, the recess part defining a groove. A protruding part is provided on at least one of two sides in a width direction of the first fan-out line, where a part of the protruding part fills into the groove in a direction towards the insulation layer to form a protrusion corresponding to the groove.

Abstract: An array substrate, a display, and a manufacturing method are provided. The array substrate is provided with a first notch on at least one of two sides in a width direction of the second fan-out line, wherein a portion of the insulating layer fills into the first notch in a direction towards the second fan-out line to form a recess part corresponding to the first notch, the recess part defining a groove. A protruding part is provided on at least one of two sides in a width direction of the first fan-out line, where a part of the protruding part fills into the groove in a direction towards the insulation layer to form a protrusion corresponding to the groove.

Abstract: A prediction method of part surface roughness and tool wear based on multi-task learning belong to the file of machining technology. Firstly, the vibration signals in the machining process are collected; next, the part surface roughness and tool wear are measured, and the measured results are corresponding to the vibration signals respectively; secondly, the samples are expanded, the features are extracted and normalized; then, a multi-task prediction model based on deep belief networks (DBN) is constructed, and the part surface roughness and tool wear are taken as the output of the model, and the features are extracted as the input to establish the multi-task DBN prediction model; finally, the vibration signals are input into the multi-task prediction model to predict the surface roughness and tool wear.

Abstract: Disclosed is a pile leg walking type manganese nodule mining robot. The robot includes a body, a pile walking mechanism, a vector propulsive mechanism, a negative pressure suction mechanism and a manganese nodule cutter suction mechanism. The invention involves a stable and efficient deep-sea mining robot which can complete the mining task on the geological layer where the manganese nodule are located, and effectively protects the marine life and living environment in the deep-sea mining area. The existence environment of manganese nodule is also protected. After mining, the regeneration environment of living or other resources on the deep-sea floor will not be affected, thus greatly resolving the sharp contradiction between resource exploitation and environmental protection.

Abstract: A system-level packaging method includes providing a packaging substrate having a first functional surface and a second surface with wiring arrangement within the packaging substrate and between the first functional surface and the second surface. The method also includes forming at least two package layers on the first functional surface of the packaging substrate, wherein each package layer is formed by subsequently forming a mounting layer, a sealant layer, and a wiring layer. Further, the method includes forming a top sealant layer and planting connection balls on the second functional surface of the packaging substrate.

Abstract: An array substrate and a manufacturing method thereof, a display panel and a display device are provided. The array substrate includes: a base substrate; a plurality of gate lines, a plurality of data lines, and a plurality of common electrode lines on the base substrate; the plurality of common electrode lines and the plurality of gate lines are arranged at different layers; the plurality of common electrode lines and the plurality of data lines are arranged at a same layer and parallel to each other; the plurality of gate lines are insulated from and intersected with the plurality of data lines and the plurality of common electrode lines to define a plurality of sub-pixel units.

Abstract: A water pumping and injecting multi-layered concentric sphere neutron spectrometer includes a neutron detector, a plurality of shells concentrically provided, and a water pumping and injecting device; wherein an innermost shell surrounds a surface of the neutron detector; gaps are formed between adjacent shells for containing liquid; the shells are made of an aluminum material; a valve is arranged on each of the shells except the innermost shell; the water pumping and injecting device is connected to the valve of each of the shells except the innermost shell, so as to input water into the gaps or output the water from the gaps. Compared with conventional neutron spectrometer, weight of the water pumping and injecting multi-layered concentric sphere device and the neutron spectrum detection system of the present invention is greatly reduced, which is conducive to transportation and utilization. Meanwhile, combination of neutron spectrum data measurement and measurement data are increased.

Abstract: An array substrate and a manufacturing method thereof, a display panel and a display device are provided. The array substrate includes: a base substrate; a plurality of gate lines, a plurality of data lines, and a plurality of common electrode lines on the base substrate; the plurality of common electrode lines and the plurality of gate lines are arranged at different layers; the plurality of common electrode lines and the plurality of data lines are arranged at a same layer and parallel to each other; the plurality of gate lines are insulated from and intersected with the plurality of data lines and the plurality of common electrode lines to define a plurality of sub-pixel units.

Abstract: A water pumping and injecting multi-layered concentric sphere neutron spectrometer includes a neutron detector, a plurality of shells concentrically provided, and a water pumping and injecting device; wherein an innermost shell surrounds a surface of the neutron detector; gaps are formed between adjacent shells for containing liquid; the shells are made of an aluminum material; a valve is arranged on each of the shells except the innermost shell; the water pumping and injecting device is connected to the valve of each of the shells except the innermost shell, so as to input water into the gaps or output the water from the gaps. Compared with conventional neutron spectrometer, weight of the water pumping and injecting multi-layered concentric sphere device and the neutron spectrum detection system of the present invention is greatly reduced, which is conducive to transportation and utilization. Meanwhile, combination of neutron spectrum data measurement and measurement data are increased.

Abstract: A line detecting apparatus and a line detecting method for an array substrate relates to the field of line detecting technology. The detecting method comprises: arranging an input terminal sensor (30) at a signal input terminal of a wire to be detected, arranging one output terminal sensor (41, 42, 43) at a signal output terminal of the wire to be detected, and arranging other output terminal sensor (41, 42, 43) at a signal output terminal of another wire adjacent to the wire to be detected; measuring an output voltage of the wire to be detected by a voltage detector; and determining the line conduction condition of the wire to be detected according to the output voltage as measured. When the sensors perform line scan, the coordinate of the specific location where the short-circuit or open-circuit occurs can be found directly without performing scan by PDS or AOI, thus simplifying the technical processes, shortening the time for detecting, and saving the production cost.

Abstract: The present invention provides a structure and a method of reinforcing a conductor soldering point of a semiconductor device. The structure includes an inner frame lead, a soldering area arranged on the surface of the inner frame lead, a conductor soldered in the soldering area, and a locking card including a pressing part, a locking part overhangs outwards from the pressing part pressed on the conductor. The locking part penetrates through the inner frame lead and is clamped on the side of the inner frame lead deviating from the conductor. According to the present invention, the conductor soldered on the inner frame lead is firmly clamped on the inner frame lead through the locking card to effectively avoid the stripping condition of the conductor and the inner frame lead, reinforce the electrical connection of the conductor and the inner frame lead, and improve the reliability of the semiconductor device.

Abstract: The present invention provides a structure and a method of reinforcing a conductor soldering point of a semiconductor device. The structure includes an inner frame lead, a soldering area arranged on the surface of the inner frame lead, a conductor soldered in the soldering area, and a locking card including a pressing part, a locking part overhangs outwards from the pressing part pressed on the conductor. The locking part penetrates through the inner frame lead and is clamped on the side of the inner frame lead deviating from the conductor. According to the present invention, the conductor soldered on the inner frame lead is firmly clamped on the inner frame lead through the locking card to effectively avoid the stripping condition of the conductor and the inner frame lead, reinforce the electrical connection of the conductor and the inner frame lead, and improve the reliability of the semiconductor device.

Abstract: A system-level packaging method includes providing a packaging substrate having a first functional surface and a second surface with wiring arrangement within the packaging substrate and between the first functional surface and the second surface. The method also includes forming at least two package layers on the first functional surface of the packaging substrate, wherein each package layer is formed by subsequently forming a mounting layer, a sealant layer, and a wiring layer. Further, the method includes forming a top sealant layer and planting connection balls on the second functional surface of the packaging substrate.