Abstract: A motion estimation method and a system in inter-frame prediction coding of 3D point cloud data: first, isometric sub-sampling is performed for points in pc_likely_world, then, the sampled points were divided into uniform small cubes, and the centroid of point cloud location information in each small cube was calculated, and the points closest to the centroid were found, and these points were put into pc_world_target. Finally, the corresponding point pc_world_ref is found in the reference frame, and the LMS algorithm is used to calculate the global motion matrix; by reserving the centroid points in each block, the method not only effectively removes the redundant points to reduce the computational complexity of the global motion matrix but also preserves the points that represent the characteristics of the point cloud to ensure the computational accuracy of the global motion matrix.

Abstract: A method, an apparatus, a computing device, and a computer-readable storage medium for monitoring use of target item are disclosed. The method includes obtaining a RoI of each of video frames, for each frame, determining whether the target item and a head of a monitored target object are both present in the RoI, if yes, determining whether a hand of the monitored target object is present in the RoI, if the hand not present, determining a face orientation of the monitored target object to determining whether the each frame is in a first video frame status, if the hand presents, determining a relative position relationship between the hand and the target item to determining whether the each frame is in the first video frame status, and based on a number of video frames continuously in the first video frame status, determining whether the monitored target object uses the target item.

Abstract: Provided are a genetically modified cell line producing a recombinant glycoprotein having a mannose-terminated N-glycan and a method for producing the recombinant glycoprotein or a method for generating the cell, clone or cell line. The cell line comprises an insertion of less than 600 bp in the coding region of a chromosomal sequence encoding MGAT1.

Abstract: Provided are an isolated recombinant oncolytic poxvirus capable of being regulated and controlled by microRNA and a use thereof. The isolated recombinant oncolytic poxvirus can be regulated and controlled by microRNA, and the expression level of the microRNA in tumor cells of a mammal is lower than that in normal cells of the same mammal. A target sequence of the microRNA is integrated in a 3?UTR region of an E10R gene in a recombinant oncolytic poxvirus genome.

Abstract: A motion estimation method and a system in inter-frame prediction coding of 3D point cloud data: first, isometric sub-sampling is performed for points in pc_likely_world, then, the sampled points were divided into uniform small cubes, and the centroid of point cloud location information in each small cube was calculated, and the points closest to the centroid were found, and these points were put into pc_world_target. Finally, the corresponding point pc_world_ref is found in the reference frame, and the LMS algorithm is used to calculate the global motion matrix; by reserving the centroid points in each block, the method not only effectively removes the redundant points to reduce the computational complexity of the global motion matrix but also preserves the points that represent the characteristics of the point cloud to ensure the computational accuracy of the global motion matrix.

Abstract: Methods for asymmetric cis-dihydroxylation (“AD”) of quinones to produce cis-diols of quinones with high yield (i.e. a yield ?30%) and high enantioselectivity (i.e. an enantiometric excess ?30%) are disclosed. The method uses an iron-based catalyst, such as one or more Fe(II) complexes, as the catalyst, and can be performed under mild reaction conditions (e.g. a temperature ?50° C. at 1 atom in open air). The method generally includes: (i) maintaining a reaction mixture at a temperature for a period of time sufficient to form a product, where the reaction mixture contains a quinone, one or more iron-based catalyst(s), and a solvent, and where the product contains a chiral cis-diol. Optionally, the method also includes adding an oxidant into the reaction mixture prior to and/or during step (i), such as a hydrogen peroxide solution.

Abstract: The present disclosure provides an array substrate, a display panel, and a display device. The array substrate includes: a substrate; and a first conductive structure, an interlayer insulation layer, and a second conductive structure sequentially disposed on the substrate. The first conductive structure has a first connection portion, the second conductive structure has a second connection portion, and the first connection portion is electrically coupled to the second connection portion through a via penetrating through the interlayer insulation layer. At least one of the first connection portion and the second connection portion is provided with an opening, and an orthographic projection of the opening on the substrate does not overlap an orthographic projection of the via on the substrate.

Abstract: A catheter system (100) for treating a vascular lesion (106A) within or adjacent to a vessel wall (108A) within a body (107) of a patient (109). The catheter system (100) includes a light source (124), a receptacle assembly (274), a first light guide (122A) and a second light guide (122A), a multiplexer (128), and an alignment assembly (256). The light source (124) generates a source beam (124A) of light energy. The first light guide (122A) and the second light guide (122A) are coupled to the receptacle assembly (274), each light guide (122A) having a guide proximal end (122P). The multiplexer (128) receives the source beam (124A) from the light source (124), the multiplexer (128) directing individual guide beams (124B) from the source beam (124A) to each of the guide proximal end (122P) of the first light guide (122A) and the guide proximal end (122P) of the second light guide (122A).

Abstract: The present disclosure provides a shift register, a gate driving circuit and a display panel. The shift register includes a transistor, which includes a gate electrode, a gate insulating layer, an active layer, a first electrode and a second electrode; the first and second electrode are of comb-shaped structures; the first electrode includes first and second comb tooth portions arranged at intervals, and a first comb handle portion connecting the first and second comb tooth portions; and comb tooth electrodes of the first comb tooth portions have a different length from those of the second comb tooth portions; the second electrode includes third and fourth comb tooth portions arranged at intervals, and a second comb handle portion connecting the third and fourth comb tooth portions; the first and third comb tooth portions form an inter-digital structure, the second and fourth comb tooth portions form an inter-digital structure.

Abstract: An array substrate includes a first base substrate, an insulating layer group, a second electrode, a transparent conductive layer, and a first electrode; the transparent conductive layer and the first electrode are laminated and formed on the same side of the first base substrate; the first electrode has a first opening; the insulating layer group is arranged on a side of the first electrode or the transparent conductive layer away from the first base substrate; the second electrode is arranged on a side of the insulating layer group away from the first base substrate, the second electrode is arranged opposite to the first opening.

Abstract: The present disclosure provides a display substrate, a display panel and a display apparatus, belonging to the field of display technology. The display substrate includes a base, a plurality of common electrodes and a plurality of common electrode lines, the common electrodes are distributed on the base in an array, the common electrode lines extend along a row direction, and each common electrode line is connected to a corresponding row of common electrodes. The common electrode line is connected to the common electrode through a conductive connection portion, and the conductive connection portion includes conductive structures stacked on top of one another in a plurality of layers. The display substrate can reduce the resistance between the common electrode and the common electrode line, thereby reducing the voltage difference between the common electrodes in the display substrate and improving the uniformity of the common voltage therein.

Abstract: A needle assembly for use with an autonomous ultrasound imaging system includes a needle having a proximal end and a distal end adapted to be inserted into a patient. The needle assembly also includes a needle transducer mounted to an exterior surface of the needle and is electrically coupled to a power source. The needle transducer is configured to receive data signals from the autonomous ultrasound imaging system which contain information relating to a plurality of ultrasound waves generated by an ultrasound probe of the autonomous ultrasound imaging system.

Abstract: A spiral wound membrane module has a brackish water RO or NF membrane combined with a permeate carrier having a narrow spacing between membrane contacting elements. The membrane may have water permeability (A-Value) of at least 8*10?5 cm/s/bar at 25° C. The membrane may have salt diffusion rate (B-Value) of at least 0.5*10?5 cm/s at 25° C. The permeate carrier may have a density of 54 wales per inch or more of a gap between adjacent ribs of 215 um or less. The permeate carrier may have a channel cross-sectional area of 16*10?9 m2 or more. Water is fed to the module at a high feed pressure, for example a pressure of at least 50 bar, optionally up to 120 bar. Retentate may be discharged at a concentration of 100 g/L, 130 g/L, or 150 g/L or more.

Abstract: A micro-displacement amplifying apparatus comprises two sets of asymmetrical amplifying structures; each set of asymmetrical amplifying structure comprises a plurality of asymmetrical amplifying units connected in series by flexible hinges; the asymmetrical amplifying unit is used for amplifying a micro-displacement; the two sets of asymmetrical amplifying structures are in opposite positions and overlap with each other; the input end and output end are coupled to the asymmetrical amplifying unit by a flexible hinge, respectively; the input end is used for inputting the micro-displacement to the asymmetrical amplifying unit, and the output end is used for outputting the amplified displacement; the two contacting input ends are fixed and coupled to each other, and the two contacting output ends are fixed and coupled to each other. The present disclosure further discloses an amplification method of the micro-displacement amplifying apparatus.

Abstract: The present invention belongs to the technical field of mobile transformer substation, and in particular relates to a vehicle-mounted mobile transformer with a position-adjustable lead-out bushing.

Abstract: A multimedia playback method includes: playing first multimedia data, switching from playing the first multimedia data to playing a multimedia frame corresponding to a target starting point of second multimedia data, based on a media switching operation, the second multimedia data including multimedia frames corresponding to a plurality of time points, the plurality of time points including pre-configured P candidate starting points, and the target starting point belonging to the P candidate starting points, and switching, during the playing of the second multimedia data, from playing a first multimedia frame in the second multimedia data to playing a new multimedia frame corresponding to a new starting point, based on a target triggering operation, the first multimedia frame being a multimedia frame played at a moment at which the target triggering operation is performed, and the new starting point being a candidate starting point other than the target starting point. .

Abstract: The present invention relates to the technical field of plant cultivation through artificial light, and particularly provides a light environment method for plant cultivation through full-artificial light to provide a full-artificial light source for plant growth. The light source includes a light wave with a waveband of 620 nm to 760 nm, and the number of photons of the light wave of 620 nm to 760 nm accounts for 64% to 76% of the total number of photons of the light source. Compared with traditional light sources, such as existing fluorescent lamps and high-pressure sodium lamps, the present invention adopting a mode of light source proportion and light source combination can greatly improve the yield of the plant.

Abstract: An image processing method and an image processing model training method and device. The image processing method comprises: obtaining a first original image to be processed (S101), and downsampling and blurring said first original image according to a configured downsampling processing algorithm and blur parameter to obtain a degraded image (S102). In the method, a new photo can be downsampled and blurred to obtain the degraded image similar to an old photo, and a good training sample is provided for the application of machine learning in the old photo restoration technology. An image processing model applied in the old photo restoration technology is trained on the basis of the training sample, so as to obtain the image processing model having stronger restoration capability, and when the old photo is restored by using the image processing model, the restoration efficiency is higher, and the restoration effect is better.

Abstract: The present disclosure discloses a method for preparing lenalidomide. The present disclosure provides a method for preparing lenalidomide I, which comprises the following steps: in a solvent, the lenalidomide intermediate II is reduced with a metal in the presence of an organic acid to obtain the lenalidomide I, wherein the metal is one or more selected from zinc, iron, aluminum and manganese. The preparation method of the disclosure has simple and safe operation, simple post-processing steps, environmental friendliness, high total yield. Moreover, the product obtained in the method has a purity of more than 99.90%, maximum single impurity of less than 0.10%, total heavy metal residue of less than 10 ppm and meet the heavy metal residue standard and API standard. Furthermore, the method has a low production cost and is suitable for industrial production.

Abstract: The present disclosure provides a display substrate, a display panel and a display apparatus, belonging to the field of display technology. The display substrate includes a base, a plurality of common electrodes and a plurality of common electrode lines, the common electrodes are distributed on the base in an array, the common electrode lines extend along a row direction, and each common electrode line is connected to a corresponding row of common electrodes. The common electrode line is connected to the common electrode through a conductive connection portion, and the conductive connection portion includes conductive structures stacked on top of one another in a plurality of layers. The display substrate can reduce the resistance between the common electrode and the common electrode line, thereby reducing the voltage difference between the common electrodes in the display substrate and improving the uniformity of the common voltage therein.