Abstract: The present disclosure discloses a molybdenum amine complex catalyst and a preparation method and use thereof, wherein, the method for preparing the molybdenum amine complex catalyst comprises the following steps: in the presence of a dispersion medium hydrocarbon oil, reacting a hexavalent molybdenum compound with at least one aliphatic amine compound having C4 or more carbon atoms to obtain an active metal catalyst precursor, and uniformly dispersing the active metal catalyst precursor in the dispersion medium hydrocarbon oil to obtain the molybdenum amine complex catalyst. When the molybdenum amine complex catalyst of the present disclosure is applied to the direct coal liquefaction reaction, it can significantly improve the conversion rate of coal and the conversion rate of asphaltene and preasphaltene to oil, allowing the required reaction pressure to be significantly reduced while achieving an oil yield comparable to that of the iron-based catalyst.

Abstract: The invention provides a recycling hydrogen-donating solvent for direct coal liquefaction and a preparation method therefor and use thereof, the recycling hydrogen-donating solvent provided by the preparation method of the invention can be used for obtaining the recycling hydrogen-donating solvent with good hydrogen-donating capacity through a relatively simple process flow.

Abstract: An antenna and an electronic device are provided. The antenna includes a phase shifting unit, a reference electrode layer, and an antenna substrate; the phase shifting unit includes at least one phase shifter, each includes a first transmission structure, a second transmission structure, and a phase shifting structure therebetween; the reference electrode layer is provided with at least one and second first openings; the antenna substrate includes a first dielectric substrate, and a feed structure and at least one first radiation portion on a side of the first dielectric substrate away from the reference electrode layer; the feed structure includes at least one first and second feed ports; for each phase shifter, the first transmission structure is electrically connected to a corresponding second feed port through a corresponding first opening; and the second transmission structure is electrically connected to a corresponding first radiation portion through a corresponding second opening.

Abstract: A pixel circuit includes a drive transistor, a data writing module, a storage module, and a light emitting control module; a first terminal of the storage module is configured to receive a first power supply voltage signal, and a second terminal of the storage module is configured to be connected to a control electrode of the drive transistor; a first terminal of the data writing module is configured to receive a data signal, and a second terminal of the data writing module is configured to be connected to the control electrode of the drive transistor; a substrate of the drive transistor is configured to receive a second voltage signal, a first electrode of the drive transistor is configured to receive the first power supply voltage signal, and a second electrode of the drive transistor is configured to be connected to at least partial light emitting control module.

Abstract: A pixel circuit includes a drive transistor, a data writing module, a storage module, and a light emitting control module; a first terminal of the storage module is configured to receive a first power supply voltage signal, and a second terminal of the storage module is configured to be connected to a control electrode of the drive transistor; a first terminal of the data writing module is configured to receive a data signal, and a second terminal of the data writing module is configured to be connected to the control electrode of the drive transistor; a substrate of the drive transistor is configured to receive a second voltage signal, a first electrode of the drive transistor is configured to receive the first power supply voltage signal, and a second electrode of the drive transistor is configured to be connected to at least partial light emitting control module.

Abstract: There is provided a phase shifter having a phase shift region and a peripheral region, and including a first substrate, a second substrate and a dielectric layer between such two substrates; the first substrate includes a first dielectric substrate, a first electrode and a first auxiliary structure; the second substrate includes a second dielectric substrate, a second electrode and a second auxiliary structure; the phase shift region includes overlapping regions; the first electrode and the second electrode are located in the phase shift region, and have orthographic projections, on the first dielectric substrate, overlapped at least partially in the overlapping regions; the first auxiliary structure is in the peripheral region and on a side, close to the dielectric layer, of the first dielectric substrate; the second auxiliary structure is in the peripheral region and on a side, close to the dielectric layer, of the second dielectric substrate.

Abstract: A gamma voltage regulation circuit set in a driver chip of a display panel, includes: an input circuit configured to determine a measured value of a power supply voltage of a power supply; a computing circuit configured to compute a variation value between the measured value and a reference value of the power supply voltage, an adjustment circuit configured to adjust a dynamic value of a reference voltage of a grayscale voltage generated by gamma correction through the variation value; and a third output circuit configured to output the grayscale voltage based on the dynamic value.

Abstract: Huffman packing for delta compression is described. In accordance with the described techniques, delta values between neighboring elements of a data block are generated using delta compression. The delta values are transformed according to a transformation algorithm. The transformed delta values are packed using Huffman encoding to generate compressed data that corresponds to the data block.

Abstract: Disclosed in the present application are an auxiliary transportation system for a diesel engine monorail crane locomotive in a slope and a control method thereof, relating to the field of auxiliary transportation technologies in a mine shaft. The system includes: a roadway, where a monorail crane track is arranged at a top end of the roadway; and a transfer transportation device, where the transfer transportation device runs on the monorail crane track, and a first sensing control unit is integrated in the transfer transportation device. The roadway includes an auxiliary slope mouth, the first-level to an Nth-level upper auxiliary slope bodies, the first-level to an Nth-level lower auxiliary slope bodies, the first-level to an Nth-level auxiliary slope central stations, a plurality of arc-shaped shaft bodies, and an auxiliary slope bottom.

Abstract: An organic electroluminescent device includes, from bottom to top, a substrate, a first electrode and a light-emitting component in sequence, where the light-emitting component is disposed on the first electrode, and a secondary electrode structure is disposed on an upper side surface of the light-emitting component and includes a sub-electrode, a dielectric material layer and an outer layer electrode, where the dielectric material layer is disposed between the sub-electrode and the outer layer electrode, the sub-electrode is in contact with the light-emitting component, the dielectric material layer and the sub-electrode completely cover a light-emitting region of the light-emitting component, the outer layer electrode completely covers the dielectric material layer, and in a non-light-emitting region on the periphery of the light-emitting component, the outer layer electrode is electrically connected to the sub-electrode.

Abstract: A method for determining odor deterioration and lipid oxidation degree of tilapia during cold storage is provided. Fresh tilapia fillets are collected, cleaned, mixed and minced. A lipid extract is obtained, and divided into multiple lipid samples. The lipid samples are refrigerated for different days and analyzed by a lipidomics technique to obtain lipid oxidation degree and lipid metabolism data. A lipid metabolic network associated with odor is established. The lipid metabolic data is analyzed based on the lipid metabolic network to obtain metabolic markers corresponding to the lipid samples. An evaluation metabolite marker is screened among the metabolic markers. The metabolic status of the lipid samples is analyzed based on the evaluation metabolite marker.

Abstract: The method includes obtaining a distance value of a guide wire from an inner wall of cavity and a resistance value of the inner wall of cavity to the guide wire when the guide wire moves in the cavity and controlling the guide wire for corresponding movement according to a relationship between the distance value and a predetermined distance threshold value, and/or the relationship between the predetermined resistance threshold value. The alarm strategy through image and resistance detection multi-dimensionally, lead to low false alarm rate. Automatic error correction by automatic reverse motion avoids the risk of untimely correction in case of danger due to the user's stress during the movement, thus improving the overall automation of movement control of the intervention robot.

Abstract: An anesthetic method of the spotted seabass with a plant essential oil includes the following steps. (1) Spotted seabass is acclimated in a water tank for 24 h before anesthesia. The metabolic wastes of the spotted seabass were discharged during acclimatization period. (2) Cinnamomum camphora essential oil, ethanol, and Tween-80 are mixed and dissolved to obtain an emulsified essential oil. (3) The emulsified essential oil is respectively added into a plurality of aquariums. The spotted seabass is transferred into the plurality of aquariums. Concentrations of Cinnamomum camphora essential oils in the plurality of aquariums and anesthesia time of the spotted seabass are recorded. (4) The spotted seabass are captured and placed into an aquarium containing clean water for recovery when the spotted seabass enter the deep anesthesia period. The resuscitation time is recorded when the spotted seabass have no flopping, and swim normally and is active.

Abstract: A high-density keeping-alive box for fish and a transport method using same. The keeping-alive box includes a box body and a cover assembly. The box body includes a fish accommodating area and a water circulation area. A cover of the cover assembly on the fish accommodating area is pivotedly connected to the box body, and is provided with a vent hole to prevent splash. A connection between the cover assembly and the box body is provided with a splash-proof rubber. The water circulation area is arranged at a side inside the box body. The water circulation area includes a purification system, a refrigerator and an aeration system arranged sequentially. The purification system includes a primary filtration area, a secondary filtration area, an activated carbon filtration area and an ultraviolet (UV) sterilization area.

Abstract: The present invention relates to the field of oil extraction machinery and provides a moving barrel type oil pumping device. The device includes a winch, a support frame, a pulley, an oil inlet pipe, an oil extraction barrel, and a suction pump. The support frame is installed at the wellhead, and the pulley is suspended from the top of the support frame, directly above the wellhead. The wellhead is equipped with an upper flange, a lower flange, and a casing, with the upper flange and lower flange connected by bolts, and the lower flange threaded into the casing. The winch is equipped with a cable, and the inlet of the suction pump is connected to the oil inlet pipe. The cable passes over the pulley and changes direction, then passes through the upper flange and is suspended from the oil extraction barrel. The end of the oil inlet pipe extends to the bottom of the oil extraction barrel.

Abstract: An antenna and an electronic device are provided. The antenna includes a phase shifting unit, a reference electrode layer, and an antenna substrate; the phase shifting unit includes at least one phase shifter, each includes a first transmission structure, a second transmission structure, and a phase shifting structure therebetween; the reference electrode layer is provided with at least one and second first openings; the antenna substrate includes a first dielectric substrate, and a feed structure and at least one first radiation portion on a side of the first dielectric substrate away from the reference electrode layer; the feed structure includes at least one first and second feed ports; for each phase shifter, the first transmission structure is electrically connected to a corresponding second feed port through a corresponding first opening; and the second transmission structure is electrically connected to a corresponding first radiation portion through a corresponding second opening.

Abstract: A substituted triazinylmethylcycloalkylcarboxylic acid derivative having a structure as shown in formula (I). In addition, further disclosed are a pharmaceutically acceptable salt, a stereoisomer, a pharmaceutical composition and the use of the derivative. The compound has significant P2X3 inhibitory activity and selectivity, and is high in application value.

Abstract: A method for detecting a texture of Takifugu obscurus, including: (S1) removing internal organs and skin of the Takifugu obscurus followed by washing and drying; and removing a head and cutting a flesh on two sides of the Takifugu obscurus along a spine; (S2) cutting a plurality of cylindrical samples with the same shape and size along both sides of the flesh followed by transfer to a pre-cooled petri dish; allowing a cross section of the samples to cling to the petri dish followed by fixing with a petri dish cover; and storing the petri dish in seal at 0-4° C.; (S3) detecting, by a texture analyzer, a texture of each cylindrical sample; and averaging detection results of the samples as a result of the texture of the Takifugu obscurus.

Abstract: There is provided a phase shifter having a phase shift region and a peripheral region, and including a first substrate, a second substrate and a dielectric layer between such two substrates; the first substrate includes a first dielectric substrate, a first electrode and a first auxiliary structure; the second substrate includes a second dielectric substrate, a second electrode and a second auxiliary structure; the phase shift region includes overlapping regions; the first electrode and the second electrode are located in the phase shift region, and have orthographic projections, on the first dielectric substrate, overlapped at least partially in the overlapping regions; the first auxiliary structure is in the peripheral region and on a side, close to the dielectric layer, of the first dielectric substrate; the second auxiliary structure is in the peripheral region and on a side, close to the dielectric layer, of the second dielectric substrate.

Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device includes a substrate, an auxiliary electrode disposed on the substrate, multiple tree-shaped transparent electrodes disposed on the substrate, an insulating layer covering the auxiliary electrode and the tree-shaped transparent electrodes, an anti-short-circuit electrode layer disposed on the insulating layer, a second electrode layer disposed opposite to the anti-short-circuit electrode layer, and an organic functional layer disposed between the anti-short-circuit electrode layer and the second electrode layer. Each tree-shaped transparent electrode is disposed at a position corresponding to a luminescent region of the organic electroluminescent device and is electrically connected to the auxiliary electrode. At least one luminescent region is provided.