Abstract: The invention relates to a double-microenvironment three-layer bionic hydrogel scaffold and a preparation method and application thereof, which are characterized in that includes a cartilage layer GL-HPKGN, an intermediate layer GL-GMA, and a bone layer GL-HP/GMAAT; by an enzymatic crosslinking reaction based on hydroxyphenylpropionic acid (HPA), kartogenin (KGN) is grafted onto gelatin to form a cartilage-specific microenvironment in GL-HPKGN; Based on hydroxyphenylpropionic acid (HPA), a dual crosslinking network was formed by enzyme crosslinking reaction and methacryloyl-glycidyl dimethicone (GMA) photo-crosslinking reaction, which was used to graft atorvastatin (AT) onto gelatin, forming GL-HP/GMAAT with bone-specific microenvironment; the intermediate layer GL-GMA was beneficial for forming a clear and defined cartilage-bone integrated structure. The introduction of the tide-line intermediate layer GL-GMA facilitated the formation of well-defined chondro-bone integrated structures.

Abstract: A display device includes a driving substrate, a plurality of micro light-emitting elements dispersedly disposed on the driving substrate, and a common electrode. A groove is provided on the driving substrate between the micro light-emitting elements. Each of the micro light-emitting elements includes an epitaxial structure layer and a first electrode and a second electrode disposed on opposite sides of the epitaxial structure layer. The common electrode is disposed on the driving substrate, is located between the first electrodes of the micro light-emitting elements, and exposes an upper surface of the first electrode. An insulating layer covers sidewalls of the micro light-emitting elements and extends into the groove to improve reliability of the device.

Abstract: A micro light emitting device includes an epitaxial structure, a conductive layer, and a first insulating layer. The epitaxial structure has a first surface and a second surface opposite to the first surface, and includes a first semiconductor layer, an active layer and a second semiconductor layer that are arranged in such order in a direction from the first surface to the second surface. The conductive layer is formed on a surface of the first semiconductor layer away from the active layer. The first insulating layer is formed on the surface of the first semiconductor layer away from the active layer, and exposes at least a part of the conductive layer.

Abstract: A method and systems for random sampling consensus federated (RSCFed) learning in non-IID settings are provided. The method includes randomly sampling local clients, assigning a current global model to the randomly sampled local clients for initialization at beginning of a synchronization round, conducting local training on the randomly sampled local clients, collecting local models from the randomly sampled local clients and executing distance-reweighted model aggregation (DMA) on the collected local models to obtain a sub-consensus model, repeating above steps multiple times to obtain a set of sub-consensus models, and aggregating a new model based on the sub-consensus models to be next global model.

Abstract: A white light emitting material having a chemical structural formula represented by formula (I), a preparation method thereof and application thereof. The preparation method comprises subjecting tris(4-iodophenyl)amine and 4-methoxyphenylacetylene or tris(4-iodophenyl)amine and methyl 4-ethynylbenzoate to a coupling reaction under protection of a protective gas and catalysis of a Pd/Cu mixed catalyst, to obtain the white light emitting material. A novel temperature-sensitive light emitting material is synthesized through a one-step method. The material is applied to the field of diode luminescence based on the temperature-sensitive characteristic. White light luminescence can be finally realized only by reasonably controlling the temperature and duration time during heating a substrate. Compared with the existing art, the method greatly saves raw material costs and manufacturing process costs, and provides a novel idea and strategy for use of a white organic light emitting diode.

Abstract: A method for playing a video, an electronic device and a computer readable storage medium. The method includes: playing a panoramic video in a first mode on a video playing interface, in which the first mode supports video switching based on a swiping gesture received on the video playing interface; acquiring a play mode switching instruction; and switching from playing the panoramic video in the first mode to playing the panoramic video in a second mode based on the play mode switching instruction, in which the second mode supports switching a viewpoint of the panoramic video based on the swiping gesture received on the video playing interface.

Abstract: Disclosed is application of emodin in inhibiting amyloid ?-protein (A?) accumulation, improving cognitive and memory abilities, and reducing senile plaques. Alzheimer's disease (AD) is a neurodegenerative disease which is characterized in that nerve cell fibers are entangled. A? plaques are deposited, and a cognitive function is impaired to a pathological feature, and extracellular toxicity accumulation of A? is considered as one of main links of AD pathogenesis. In the present invention, it is discovered that emodin can obviously inhibit accumulation of an A?42 monomer and formation of fibers and inhibit formation of a ? secondary structure, can improve spatial memory learning ability of an AD mouse, and can obviously clear amyloid plaques in APP/PS1 double-transpenic AD model mouse brain tissues. It shows that emodin can be applied to treatment of AD, and research and development of related medicaments.

Abstract: A white light emitting material having a chemical structural formula represented by formula (I), a preparation method thereof and application thereof. The preparation method comprises subjecting tris(4-iodophenyl)amine and 4-methoxyphenylacetylene or tris(4-iodophenyl)amine and methyl 4-ethynylbenzoate to a coupling reaction under protection of a protective gas and catalysis of a Pd/Cu mixed catalyst, to obtain the white light emitting material. A novel temperature-sensitive light emitting material is synthesized through a one-step method. The material is applied to the field of diode luminescence based on the temperature-sensitive characteristic. White light luminescence can be finally realized only by reasonably controlling the temperature and duration time during heating a substrate. Compared with the existing art, the method greatly saves raw material costs and manufacturing process costs, and provides a novel idea and strategy for use of a white organic light emitting diode.

Abstract: A facial model editing method and apparatus are provided. The method includes detecting a location of a cursor in a facial model displayed on a screen. The facial model containing a plurality of facial positions. The method also includes determining a to-be-operated facial position from the plurality of facial positions according to the location of the cursor; and detecting a selection operation on the to-be-operated facial position. Further, the method includes editing the to-be-operated facial position in response to an obtained editing operation on the to-be-operated facial position; and displaying the edited to-be-operated facial position in the facial model.

Abstract: A facial model editing method and apparatus are provided. The method includes detecting a location of a cursor in a facial model displayed on a screen. The facial model containing a plurality of facial positions. The method also includes determining a to-be-operated facial position from the plurality of facial positions according to the location of the cursor; and detecting a selection operation on the to-be-operated facial position. Further, the method includes editing the to-be-operated facial position in response to an obtained editing operation on the to-be-operated facial position; and displaying the edited to-be-operated facial position in the facial model.

Abstract: A supporting device for a floor of a rail vehicle includes an elongate floor rail which is composed of a first metallic material and is divided into a plurality of longitudinal portions or sections, so as to form at least one joint. The floor rail is supported on a rail vehicle shell which is composed of a second metallic material. The floor rail is connected in the region of the joint to an intermediate profile which is provided for interconnecting the mutually adjoining longitudinal sections of the floor rail in a flexurally rigid fashion. A sliding fit or seat is formed between the longitudinal portions or sections of the floor rail and the intermediate profile.

Abstract: Apparatus and method for cleaning chlorobenzenes-contaminated soil and groundwater are provided related to environment protection. The apparatus includes a direct current power supply, permeable reactive barrier (PRB) reaction walls and electrodes, wherein the electrodes are arranged in a polluted area according the concentric circles, and are installed into electrode chambers; the PRB reaction walls are installed at ½ between the anode electrode and the cathode electrode and at ¼ from the anode electrode. Chlorobenzenes in the soil and groundwater can be gathered in the PRB reaction walls through the arrangement of the electrode area; and then the chlorobenzenes can be further removed by oxidation-reduction reactions in the PRB reaction walls.

Abstract: Apparatus and method for cleaning chlorobenzenes-contaminated soil and groundwater are provided related to environment protection. The apparatus includes a direct current power supply, permeable reactive barrier (PRB) reaction walls and electrodes, wherein the electrodes are arranged in a polluted area according the concentric circles, and are installed into electrode chambers; the PRB reaction walls are installed at ½ between the anode electrode and the cathode electrode and at ¼ from the anode electrode. Chlorobenzenes in the soil and groundwater can be gathered in the PRB reaction walls through the arrangement of the electrode area; and then the chlorobenzenes can be further removed by oxidation-reduction reactions in the PRB reaction walls.

Abstract: A supporting device for a floor of a rail vehicle includes an elongate floor rail which is composed of a first metallic material and is divided into a plurality of longitudinal portions or sections, so as to form at least one joint. The floor rail is supported on a rail vehicle shell which is composed of a second metallic material. The floor rail is connected in the region of the joint to an intermediate profile which is provided for interconnecting the mutually adjoining longitudinal sections of the floor rail in a flexurally rigid fashion. A sliding fit or seat is formed between the longitudinal portions or sections of the floor rail and the intermediate profile.