Abstract: A power transmission and transformation project acceptance method based on building information modeling (BIM) and point cloud measurement includes: S1: constructing a BIM model based on a design drawing, where the BIM model includes standard parameters of key components of a power transmission and transformation project; S2: obtaining point cloud data, and constructing a point cloud data model based on the point cloud data, where the point cloud data model includes actual parameters of the key components of the power transmission and transformation project; S3: comparing the BIM model with the point cloud data model to obtain construction acceptance data; and S4: visualizing the construction acceptance data and outputting an acceptance report to complete acceptance of the power transmission and transformation project. The BIM model and the point cloud data model are compared to implement rapid and efficient acceptance of the power transmission and transformation project.

Abstract: An air ionization display device includes: a pulse-light-source module configured to generate a plurality of synchronous pulse light beams; and a light field control module, the plurality of pulse light beams being projected to the light field control module and the light field control module being configured to adjust and merge the plurality of pulse light beams and ionize air in a display area to form a holographic real image.

Abstract: A display substrate, including: a base substrate; a plurality of gate lines and a plurality of data lines that intersect to surround a plurality of pixels; wherein each pixel includes a first thin film transistor, a second thin film transistor and a pixel electrode. A first electrode of the first thin film transistor is electrically connected to a pixel conductive layer of the pixel electrode, a second electrode of the first thin film transistor is electrically connected to a first electrode of the second thin film transistor, and a second electrode of the second thin film transistor is electrically connected to the data line. An orthographic projection of a combination of the second electrode of the first thin film transistor and the first electrode of the second thin film transistor on the base substrate at least partially overlaps with an orthographic projection of the pixel conductive layer on the base substrate.

Abstract: The disclosure provides a display panel, a compensation of brightness method and a displaying device. The display panel comprises an array substrate, a luminescent layer, a plurality of optical film layers and a photoelectric sensor, wherein the luminescent layer is located on one side of the array substrate, the array substrate is used for driving the luminescent layer to emit light, the optical film layers are located on a side, away from the array substrate, of the luminescent layer, light emitted by the luminescent layer forms optical waveguide on the array substrate and/or the optical film layers, and the photoelectric sensor is used for acquiring the optical waveguide to perform compensation of brightness on the light emitted by the luminescent layer according to data of the optical waveguide.

Abstract: Abnormally-shaped tobacco granules are provided. The tobacco granules comprise a tobacco granule body and a coating attached to the surface of the tobacco granule body. The coating contains an adhesive. The surface of the abnormally-shaped tobacco granule has one or more grooves and/or ridges, and/or, the abnormally-shaped tobacco granule has through holes therein. The surface grooves of the abnormally-shaped tobacco granules can serve as smoke channels after the tobacco granules are bonded, cured and shaped, so that the air permeability inside a total-granule tobacco product is greatly improved. The smoking resistance of cigarettes is reduced. The flammability of cigarettes is improved and the consumption of tobacco raw materials is reduced. A preparation method of the abnormally-shaped tobacco granules, a tobacco product comprising the abnormally-shaped tobacco granules, and a preparation method thereof are also provided.

Abstract: A low-temperature smoking body and a preparation method thereof are disclosed. The low-temperature smoking body includes tobacco particles. The tobacco particle includes a particle body and a shell wrapped on the particle body. A carrier is distributed in the particle body and/or the shell. The carrier includes at least one of a raw tobacco material, a non-tobacco material, and a porous material. The carrier carries a smoking agent, and the smoking agent includes a tobacco extract and/or an atomizer. In addition, a preparation method of the low-temperature smoking body is further disclosed. The low-temperature smoking body has better smoking stability and uniformity, and the tobacco particles having core-shell structures can effectively solve the problem of liquid leakage.

Abstract: A data transmission cable (100) includes: a signal bundle (110), where the signal bundle (110) includes at least three signal cables, the at least three signal cables are disposed at intervals, pairwise signal cables form a differential pair signal cable, and the differential pair signal cable is used to transmit a differential data signal; a ground cable (120), where the ground cable (120) encircles and covers the signal bundle (110), and the ground cable (120) is used to transmit a ground signal and isolate the signal bundle (110) from a signal bundle (110) of another data transmission cable (100); and a filling medium (130), where the filling medium (130) is disposed in space on an inner side of the ground cable (120) except the signal cable, so that a problem that a MIPI bus has poor transmission quality and a short transmission distance can be resolved.

Abstract: A 3D target detection method based on multimodal fusion and a depth attention mechanism includes the following steps: obtaining and preprocessing original point cloud data and original image data; inputting the preprocessed point cloud data and image data into a 3D target detection network based on multimodal fusion and the depth attention mechanism, where the 3D target detection network based on multimodal fusion and the depth attention mechanism includes a generation phase for 3D bounding box proposals and a refinement phase for 3D bounding boxes, and the network outputs parameters and classification confidence of a target bounding box; training the 3D target detection network based on multimodal fusion and the depth attention mechanism; and processing the collected lidar point cloud data and image data by using the trained detection network, and outputting 3D target information, to realize 3D target detection.

Abstract: The present disclosure discloses a method for reducing the fructan content in food made of rice and flour using microwave heating and belongs to the technical field of food processing. Fermented products made of rice and flour are prepared using microwave heating and fructan in the products can be effectively degraded. Compared with traditional steaming, the method can remarkably reduce the fructan content in the fermented food, effectively alleviate the bowel stress sensitivity to the fermented rice and flour food by patients with irritable bowel syndrome (IBS), meet the daily dietary requirements of special crowds, has the advantages of simple process, green processing and environmental protection, and is suitable for large-scale industrial production.

Abstract: A driving mechanism for moving an optical element is provided, including a fixed part, a movable part, a driving assembly, and a first guiding member connected between the fixed part and the movable part. The optical element is disposed on the movable part, and the driving assembly drives the movable part to move relative to the fixed part. The first guiding member is configured for guiding the movable part to move relative to the fixed part.

Abstract: The invention provides a method for constructing a target prediction model in a multicenter small sample scenario and a prediction method. In combination with the idea of transfer learning, a training set of a new node is predicted by directly using knowledge of a trained node, and a prediction error sample is used to reflect a difference between the new node and the trained node. The difference is used as supplementary knowledge. Model knowledge of the new node is quickly acquired, to avoid training of a new node from scratch each time. Finally, parallel integration of incremental subclassifiers is implemented by using a ridge regression method, so that the deployment time and costs are greatly reduced. The generalization of models is ensured through sharing of historical knowledge and a knowledge discarding mechanism, good classification effect can also be achieved for a node with a small sample size.

Abstract: The present disclosure provides a perovskite nanocrystal fluorescent material comprising a micro-porous template and/or a mesoporous template, a substrate, and a perovskite nanocrystal. A substrate is attached to an inner surface of the micro-porous template and/or the mesoporous template and the perovskite nanocrystal is grown on a surface of the substrate. A melting point of the substrate is higher than a melting point of the perovskite nanocrystal. The perovskite nanocrystal fluorescent material has a high luminescence rate and high luminescence stability. The present disclosure also discloses a method for preparing the perovskite nanocrystal fluorescent material. The preparation method does not require organic solvents, and the preparation process is more green and environmentally friendly. The melt crystallization method adopted has a simple and controllable process, which is suitable for large-scale preparation of the perovskite nanocrystal.

Abstract: A location sensing method, a location sensing device, and an input terminal apparatus are provided. The method comprises: in an initial stage, using the light intensity of a reflected light received by a receiver as an environment threshold; in a sensing stage, controlling a transmitter to sequentially emit sensing light, and converting the reflected light received by the receiver into an optical path image; denoising the optical path image; when there is an occlusion object in the optical path image, extracting the outline of the occlusion object and calculating at least one parameter of the occlusion object; removing noise points of the outline; calculating position coordinates of the occlusion object in an input sensing region; optimizing a first coordinate by using a first optimizing manner; and a main board determining an advancing depth in a direction perpendicular to the input sensing region, and identifying a touch position.

Abstract: The embodiments of the present invention provide an information processing method and apparatus, and an electronic device, the method comprising: receiving screen sharing request information; determining, by the screen sharing request information, whether an online content that meets a preset condition exists in a currently displayed content in a screen; providing, in response to determining that the online content exists in the currently displayed content and that the online content is a currently shared content, a sharee with access information for accessing the online content based on an access authority of the sharee.

Abstract: A method for preparing R-terbutaline by using a chiral auxiliary uses S-(?)-tert-butylsulfinamide as a starting material to sequentially react with tert-butylbromide and 1-(3,5-bis(benzyloxy)phenyl)-2-bromoethan-1-one to obtain a compound 5; the compound 5 is subjected to a reduction reaction under the catalysis of a quaternary ammonium salt to obtain a compound 6; the tert-butylsulfinyl group of compound 6 is deprotected to obtain a compound 7, and in the presence of a palladium catalyst and hydrochloric acid, the compound 7 is hydrogenolyzed in an alcohol solvent to obtain the R-terbutaline. The method is simple and reliable, the preparation costs are low, and the ee of the chiral product is as high as 99.9%.

Abstract: An optical lens includes: two transparent substrates, each transparent substrate being provided with two optical surfaces; and two optical waveguide arrays, arranged between the two transparent substrates by means of glue, optical waveguide extending directions of the two optical waveguide arrays being arranged orthogonally; each optical waveguide array including a plurality of optical waveguide units, each optical waveguide unit having a rectangular cross section, and the plurality of optical waveguide units being joined in parallel; an outer contour of the optical waveguide array being a rectangle and an extending direction of the optical waveguide unit and at least two sides of the outer contour of the optical waveguide array forming an angle of 30 to 60 degrees.

Abstract: Provided is a processing method for a single-column and multi-row equivalent negative refractive flat lens, including: processing an optical material into parallel plates including upper and lower surfaces each being a polished surface; cutting the parallel plates into strip-shaped optical waveguides; plating each polished surface with an aluminum film; attaching and gluing the surfaces together to form a single-column and multi-row strip-shaped optical waveguide array; curing the strip-shaped optical waveguide array through heating treatment; cutting the plate of the strip-shaped optical waveguide array into two sets of plates of strip-shaped optical waveguide array arranged in a direction of 45 degrees; and gluing the two sets of plates in such a manner that arrangement directions of the two sets of plates are perpendicular to each other, and then adding protective window sheets on both sides of the glued plates.

Abstract: An optical waveguide unit includes a plurality of reflecting units being the same in structure, and each reflecting unit being any one or a combination of any two of: a metal layer, a total reflecting layer, and a medium reflecting layer; and a plurality of sub waveguides stacked on each other, each of two sides of each sub waveguide being provided with one reflecting unit, at least two of the plurality of sub waveguides having different heights in a stacking direction of the plurality of sub waveguides, and the different heights of the sub waveguides being corresponding to different incident angle directions. The present disclosure also provides an optical waveguide array and a flat lens.

Abstract: A power conversion device used in electric vehicles includes a transmission assembly and a power converter. The transmission assembly is detachably connected to the electric vehicle and receives a first power from the battery pack of the electric vehicle. The power converter is electrically connected to the transmission assembly and converts the first power into a second power or a third power. The power converter is configured outside the electric vehicle.