Abstract: A viral vector delivery system for both respiratory and digestive tracts of pigs and an application thereof are provided. The viral vector delivery system includes a backbone plasmid and a helper plasmid. The backbone plasmid is produced by inserting a full-length cDNA of porcine enterovirus B (PEVB) into a pUC57 plasmid. The helper plasmid is produced by inserting a green fluorescent protein-coding gene into a plasmid pCAG-T7-polymerase. The viral vector delivery system can be constructed with high efficiency, can quickly cause a cytopathic effect (CPE) after infecting cells, has a viral titer up to 107.75 TCID50/mL, and can maintain high stability. A pathogenic epitope for the respiratory and digestive tracts of pigs is inserted into the backbone plasmid to produce a vaccine antigen, which is non-pathogenic, has high stability and a high viral titer, and allows a prominent immunization effect after being inoculated in pigs.

Abstract: Methods and systems for media trend detection and maintenance are provided herein. A set of media items each having common media characteristics is identified. A set of pose values is determined for each respective media item of the set of media items. Each pose value is associated with a particular predefined pose for objects depicted by the set of media items. A set of distance scores is calculated. Each distance score represents a distance between the respective set of pose values determined for a media item and a respective set of pose values determined for an additional media item. A coherence score is determined for the set of media items based on the calculated set of distance scores. Responsive to a determination that the coherence score satisfies one or more coherence criteria, a determination is made that the set of media items corresponds to a media trend of a platform.

Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.

Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.

Abstract: Provided is a quantum current transformer based on a bidirectional light compensation technology, including an annular cavity, a plurality of quantum probes, a front-end laser source, a back-end laser source, and a quantum processing system. The plurality of quantum probes are installed in the annular cavity and distributed in a circumference, the plurality of quantum probes are sequentially connected in series through an excitation optical fiber, and two quantum probes at both ends of a series light path are respectively connected to the front-end laser source and the back-end laser source outside the annular cavity through excitation optical fibers. The quantum processing system is connected to the plurality of quantum probes through a plurality of collection optical fibers.

Abstract: A peptide compound targeting a PD-1 receptor includes: a compound 1, a compound 2, a compound 3, a compound 4 and a compound 5; wherein the compounds 1-5 comprise amino acid sequences identical to SEQ ID NO: 1-5, respectively. A method for preparing the peptide compound targeting the PD-1 receptor includes steps of: using a solid-phase synthesis method for coupling amino acids of the compounds 1-5 to a solid-phase resin sequentially according to peptide sequences, and obtaining a target compound after cleavage by a cutting reagent, freeze-drying, and preparative purification. A method for preparing analgesic drugs includes using the peptide compound targeting the PD-1 receptor. The compounds 1-5 are capable of binding to PD-1, and have significant inhibitory effects on inflammatory pain and visceral pain under intrathecal administration; they are simple to synthesize, easy to be purified, and conducive to large-scale synthesis.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating high-resolution images using self-attention based neural networks. One of the systems includes a neural network configured to generate images, the neural network comprising a sequence of one or more first network blocks followed by a sequence of one or more second network blocks, wherein: each first network block is configured to perform operations comprising: applying a self-attention mechanism over at least a subset of first elements of a first block input to generate an updated first block input; and upsampling the updated first block input to generate a first block output; and each second network block is configured to perform operations comprising: processing a second block input using one or more neural network layers to generate an updated second block input; and upsampling the updated second block input to generate a second block output.

Abstract: Disclosed is a multifunctional foldable children's tricycle and its operating method, which includes a front frame and a rear frame connected by a main beam. A front directional wheel is provided on the front frame of the tricycle; a steering handle and rear wheels are provided on the rear frame of the vehicle. The steering handle is connected to the front steering wheel by a synchronous wire rope linkage assembly (1). The synchronous wire rope link assembly (1) comprises a guide block and a front guide piece, and guides and limits the wire rope through the guide block and the front guide piece. The multi-functional foldable children's tricycle has a simple structure, more stable steering operation and convenient folding.

Abstract: A method for controlling peak saving by wind power grid. The method includes: S1: evaluating dispatchability of a cluster virtual wind power unit; S2: developing a method for calculating a dispatchability index of the cluster virtual wind power unit; S3: analyzing a source-load peak-shaving resource strategy; and S4: distributing a control strategy for tie-line peak shaving. The present disclosure has the following beneficial effects: In the present disclosure, real-time dispatchability of wind power participating in real-time power balance is first analyzed, specific evaluation indexes and calculation methods are provided, and calculation examples are given for verification. Then, an optimized real-time dispatch strategy is provided based on demand-side response resources, and DC and AC tie-lines are coordinated for operation. The peak shaving control method for emergent source-grid coordination when a sending-end power grid is faulty can ensure normal operation.

Abstract: The present application relates to novel compounds that have modulating or activating effect on the activity of adenosine A3 receptor, preparation methods for the series of compounds, pharmaceutical compositions of the series of compounds, and pharmaceutical uses of the series of compounds.

Abstract: A white light emitting device, a light bar and a light apparatus. A relative spectrum of the white light emitting device is ?(?). A relative spectrum of a black body radiation with a corresponding color temperature is S(?). An area normalization is performed on ?(?) and S(?) to convert an equal energy spectrum ??(?) of the white light emitting device and an equal energy spectrum S?(?) of the black body radiation with the corresponding color temperature. A degree of similarity R of the equal energy spectrum of the white light emitting device and the equal energy spectrum of the black body radiation satisfies the following formula: R = 1 - ? ? ? ? i ? ? n ? ? S ? ? ( ? ) - ? ? ? ( ? ) ? ? ? ? i ? ? n ? S ? ? ( ? ) , when ?i is 380 nm, ?n is 680 nm, R?85%.

Abstract: A virtual and parallel power extraction method by using time division, comprising an alternating current load (1), a load end time-division power extraction control device (2), a switch end time-division power extraction control device (3), and a switch end power supply load (4). The alternating current load (1) is connected in parallel with the load end time-division power extraction control device (2); the switch end time-division power extraction control device (3) is connected in parallel with the switch end power supply load (4); a combination body formed by connecting the alternating current load (1) with the load end time-division power extraction control device (2) in parallel and the combination body formed by connecting the switch end time-division power extraction control device (3) with the switch end power supply load (4) in parallel are together connected in series in an alternating current circuit.

Abstract: The present invention provides triazolotriazine derivatives of formula (1) as A2A receptor antagonists. Compounds of formula (1) and pharmaceutical compositions including the compounds can be used for the treatment of disorders related to A2A receptor hyperfunctioning, such as certain types cancers. Compounds of formula (1) and methods of preparing the compounds are disclosed in the invention.

Abstract: Provided are an LED package device and a preparation method thereof, and a display device. The package device includes a transparent substrate, a black layer, a transparent bonding layer, multiple LED chips, and a mold protective layer. The multiple LED chips are fixed to the transparent substrate based on the transparent bonding layer. The black layer is configured to cover the transparent bonding layer. The black layer is provided with multiple matching holes. The multiple LED chips are matched in the multiple matching holes in a one-to-one correspondence. The cover area of the transparent bonding layer is S1. The area of the top surface of the transparent substrate is S2. The constraint relationship between S1 and S2 is S1<S2. The mold protective layer is configured to wrap the black layer, the transparent bonding layer, and the multiple LED chips on the transparent substrate.