Abstract: A three-dimensional scanning system includes a scanning apparatus configured to acquire first raw image data of a scanning target. The three-dimensional scanning system further includes a first field programmable gate array (FPGA) module provided in the scanning apparatus and configured to perform computational preprocessing on the first raw image data to obtain valid first feature data. The three-dimensional scanning system further includes a modeling terminal connected to the scanning apparatus and configured to perform modeling processing based on the first feature data to generate a three-dimensional model of the scanning target.

Abstract: The present disclosure provides a fixed-position defect doping method for a micro-nanostructure based on a self-alignment process, including: S1, sequentially forming a sacrificial layer and a photoresist layer on a surface of a crystal substrate; S2, performing a lithography on the photoresist layer to form a mask hole according to a micro-nano pattern; S3, performing an isotropic etching on the sacrificial layer through the mask hole, and amplifying the micro-nano pattern to the sacrificial layer; S4, performing an ion implantation doping on an exposed crystal surface below the mask hole; S5, removing the photoresist layer, and depositing a mask material; S6, removing the sacrificial layer, and transferring a micro-nano amplified pattern in the sacrificial layer to a mask material pattern; and S7, etching an exposed crystal surface, and removing the mask material on the surface and forming a specific defect by annealing.

Abstract: The disclosure proposes a method for remote upgrade and rollback of Unmanned Aerial Vehicle (UAV) software. The UAV includes a storage area and a UAV software upgrade module; and the storage area is divided into a main storage area, a backup storage area and a data area.

Abstract: The embodiments of the present invention provide a control system and method for a medium-voltage photovoltaic distribution system. The medium-voltage photovoltaic distribution system includes N photovoltaic modules, N DC-DC converters, a DC-AC converter and a line-frequency transformer. Outputs of the N DC-DC converters are connected in parallel to a DC bus. The DC bus is connected to the DC-AC converter. The line-frequency transformer is configured to connect to a medium-voltage AC grid. The control system includes a bus voltage sampling circuit and N DC-DC converter control circuits corresponding to the N DC-DC converters respectively. Each DC-DC converter control circuit includes a bus voltage sampling circuit, a photovoltaic sampling circuit, a droop controller, a maximum power point tracking controller, an input voltage loop regulator and a pulse width modulation wave generating circuit.

Abstract: A multi-mode three-dimensional scanning method includes: obtaining intrinsic parameters and extrinsic parameters of a calibrated camera in different scanning modes, and upon switching between the different scanning modes, triggering a change of parameters of the camera to the intrinsic parameters and the extrinsic parameters in a corresponding scanning mode; and a user selecting to execute a laser-based scanning mode, a speckle-based scanning mode or a transition scanning mode according to a scanning requirement. In the continual fusion and conversion during the whole scanning process, the speckle reconstruction and the laser line reconstruction are unified to the same coordinate system, and the surface point cloud of the object being scanned is output. The present disclosure also provides a multi-mode three-dimensional scanning system.

Abstract: An object surface data detection method and system, an electronic apparatus, and a storage medium. The object surface data detection method, applied to a three-dimensional scanning system comprising detection auxiliary devices and a scanning device, includes: obtaining a unified coordinate system established for the detection auxiliary devices, wherein a number of the detection auxiliary devices is at least two; respectively obtaining first scan data of the scanning device scanning a surface of an object and tracking results of the detection auxiliary devices tracking the scanning device; and comprehensively calculating the tracking results, the first scan data, and the unified coordinate system to obtain an object surface detection result.

Abstract: The embodiments of the present invention provide a control system and method for a medium-voltage photovoltaic distribution system. The medium-voltage photovoltaic distribution system includes N photovoltaic modules, N DC-DC converters, a DC-AC converter and a line-frequency transformer. Outputs of the N DC-DC converters are connected in parallel to a DC bus. The DC bus is connected to the DC-AC converter. The line-frequency transformer is configured to connect to a medium-voltage AC grid. The control system includes a bus voltage sampling circuit and N DC-DC converter control circuits corresponding to the N DC-DC converters respectively. Each DC-DC converter control circuit includes a bus voltage sampling circuit, a photovoltaic sampling circuit, a droop controller, a maximum power point tracking controller, an input voltage loop regulator and a pulse width modulation wave generating circuit.

Abstract: An object surface data detection method and system, an electronic apparatus, and a storage medium. The object surface data detection method, applied to a three-dimensional scanning system comprising detection auxiliary devices and a scanning device, includes: obtaining a unified coordinate system established for the detection auxiliary devices, wherein a number of the detection auxiliary devices is at least two; respectively obtaining first scan data of the scanning device scanning a surface of an object and tracking results of the detection auxiliary devices tracking the scanning device; and comprehensively calculating the tracking results, the first scan data, and the unified coordinate system to obtain an object surface detection result.

Abstract: The present invention provides a phosphorus-containing compound characterized by being a compound represented by the following structure: the compound is a novel immune cell migration inhibitor. The compound has good hydrophilicity and can be developed into eye drops. The compound has a strong inhibitory ability to immune cell migration and can relieve the symptoms of most dry-eye patients.

Abstract: A method for improvement of magnetic performance of sintered NdFeB magnet includes the following steps. Firstly, material containing element R, H and X is to be covered on a surface of the sintered NdFeB magnet to form a finish coat. After that, proceed with a diffusion treatment and an aging treatment to the sintered NdFeB magnet with the finish coat in the environment of vacuum or inert gas. R is at least one of such elements as Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. H is hydrogen. X is at least one of such elements as C, O, N, S, B, Cl and Si.

Abstract: The present invention provides a phosphorus-containing compound characterized by being a compound represented by the following structure: the compound is a novel immune cell migration inhibitor. The compound has good hydrophilicity and can be developed into eye drops. The compound has a strong inhibitory ability to immune cell migration and can relieve the symptoms of most dry-eye patients.

Abstract: A profile for window, door, facade or cladding elements is disclosed, which comprises a profile body (2) made from thermoplastic material and extending in a longitudinal direction (z) with an essentially constant cross-section (x-y) along the longitudinal direction (z) and having at least one outer surface (2a), and a inorganic containing layer (4) deposited on at least part of the at least one outer surface (2a), wherein the thermoplastic material comprises at least one thermoplastic selected from the group containing polyamide, polyethylene, polybutylene terephthalate, acrylonitrile styrene acrylate, wherein the inorganic containing layer (4) is deposited directly on the profile body (2) using a cold spray technology, and wherein the inorganic containing layer (4) has a thickness in the range from 30 ?m to 450 ?m.

Abstract: The liquid crystal display panel comprises an upper glass substrate and a lower glass substrate, wherein the upper glass substrate comprises a plurality of color-resist units, each of which comprises a red color-resist element, a green color-resist element, and a blue color-resist element that are spaced from one another, and a plurality of black matrixes each being arranged between two adjacent color-resist elements; and wherein the lower glass substrate comprises a plurality of optical filter layers arranged on an outside surface thereof, said optical filter layers corresponding to red color-resist elements, green color-resist elements, and blue color-resist elements respectively, and each optical filter layer having a color the same as a corresponding color-resist element. The structure of the liquid crystal display panel according to the present disclosure is simple.

Abstract: A method for improvement of magnetic performance of sintered NdFeB magnet includes the following steps. Firstly, material containing element R, H and X is to be covered on a surface of the sintered NdFeB magnet to form a finish coat. After that, proceed with a diffusion treatment and an aging treatment to the sintered NdFeB magnet with the finish coat in the environment of vacuum or inert gas. R is at least one of such elements as Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. H is hydrogen. X is at least one of such elements as C, O, N, S, B, Cl and Si.

Abstract: A backlight module and a liquid crystal display device are disclosed. The backlight module comprises a light guide plate, an optical diaphragm group that is arranged on one side of the light guide plate, and a collimation diaphragm group that is arranged between the light guide plate and the optical diaphragm group. According to the present disclosure, on the one hand, the viewing angle of the backlight module can be reduced through arranging the collimation diaphragm group appropriately, such as the thicknesses of collimation diaphragms, a number of layers thereof, and a refractive index of each layer, so that the requirement of special users can be met. On the other hand, the assembling of the collimation diaphragm group can be simplified through arranging the position thereof. Moreover, in the backlight module according to the present disclosure, since the light is more convergent, the brightness of the backlight module can be improved and the power consumption thereof can be reduced.

Abstract: The present invention relates to a method for improving luminance uniformity of a side-edge curved module.

Abstract: According to the present disclosure, the liquid crystal display panel comprises an upper glass substrate, a lower glass substrate, and a blue backlight source. The upper glass substrate comprises a plurality of color-resist units, each color-resist unit comprising a red color-resist region, a green color-resist region, and a transparent region that are arranged spaced from one another, black matrixes that are arranged between each two adjacent regions, and first optical filter layers that are arranged on an outer surface of the upper glass substrate at positions corresponding to the red color-resist region and the green color-resist region. The lower glass substrate comprises second optical filter layers at positions corresponding to the red color-resist region and the green color-resist region. According to the present disclosure, the image display quality of the liquid crystal display panel can be further improved.

Abstract: The liquid crystal display panel comprises an upper glass substrate and a lower glass substrate, wherein the upper glass substrate comprises a plurality of color-resist units, each of which comprises a red color-resist element, a green color-resist element, and a blue color-resist element that are spaced from one another, and a plurality of black matrixes each being arranged between two adjacent color-resist elements; and wherein the lower glass substrate comprises a plurality of optical filter layers arranged on an outside surface thereof, said optical filter layers corresponding to red color-resist elements, green color-resist elements, and blue color-resist elements respectively, and each optical filter layer having a color the same as a corresponding color-resist element. The structure of the liquid crystal display panel according to the present disclosure is simple.

Abstract: A quantum dot backlight module includes: a reflector, a light guide plate disposed above the reflector, a plurality of dot units disposed on an upper surface of the light guide plate at intervals, and a quantum dot packaged in each of the plurality of dot units, and light emitting diodes disposed on a edge side of the light guide plate. According to the present invention, the quantum dot material can be used less, which is good for reducing the production cost. Besides, heat can be effectively radiated from the light emitting diodes. Wide color gamut is realized as well.

Abstract: The present invention relates to a narrow-frame liquid crystal display (LCD) module, which comprises: an LCD panel; a light guide module including at least one group of optical films and a light guide plate disposed at the rear of the optical films; and a frame erected on the light guide plate and configured to support the edges of the optical films, wherein a prism layer is disposed among the optical films; the prism layer and the frame are partially overlapped or not overlapped; and when the prism layer and the frame are partially overlapped, the width of the prism layer extended from the frame is not more than 2 mm so as to shorten a dark band produced by the dioptric imaging of the frame on the edge of the LCD panel.