Abstract: A semi-automatic feces shoveling cat litter box, comprises a shell, a cat litter bin, and a feces shoveling component. The shell is arranged on the outer periphery of the cat litter bin, and the middle part of the shell is provided with a first opening for cats to enter into the cat litter bin. One end of the shell is provided with a second opening for the cat litter bin to pass through. Under the action of external force, the shell and the cat litter bin move relatively to each other. The end of the cat litter bin away from the second opening is provided with a waste bin. The feces shoveling component is arranged on the end of the shell near the second opening. One end of the feces shoveling component is hinged to the shell, and another end is provided with a first dentate structure.

Abstract: A data processing method includes: determining, in response to a request of an access terminal for writing target data to a blockchain, a target node role with a read permission for the target data, an access terminal connected with each node device having a permission of a node role corresponding to the node device; acquiring an encryption key corresponding to the target node role; performing encryption processing on the target data according to the encryption key to obtain a cipher text corresponding to the target data, the cipher text corresponding to the target data being decryptable for an access terminal corresponding to the target node role; and storing the cipher text corresponding to the target data to the blockchain.

Abstract: A solder-printing stencil and a method of printing solder paste are provided in the present application. A solder-printing stencil is used for printing a solder paste on a substrate in cooperation with a squeegee blade, the solder-printing stencil includes: a stencil body including a first region, a second region, and a third region, wherein the third region is defined between the first region and the second region, the third region is provided with a plurality of mesh holes spaced along a squeegeeing direction of the squeegee blade; and protruding portions are provided on a side of the stencil body facing the substrate, and the protruding portions are provided on both the first region and the second region.

Abstract: The present invention relates to an eyepiece optical system and a head-mounted display device. The system includes a first lens group, a second lens group, a third lens group, and a fourth lens group arranged coaxially and sequentially in an optical axis direction from an observation side of human eyes to a micro-image display side, wherein the first lens group has a positive effective focal length and is composed of a first lens close to a human eye side and a second lens away from the human eye side, the second lens group has a negative effective focal length and is composed of a third lens and a fourth lens, the third lens group has a positive effective focal length and is composed of a fifth lens, and the fourth lens group is composed of a sixth lens and a seventh lens. The system is suitable for head-mounted displays.

Abstract: Some aspects of the disclosure provide a method for virtual environment control. The method includes displaying a first user interface (UI) that provides a virtual environment observed from a perspective of a first virtual character that has a first virtual item, and controlling, in response to a firing instruction, the first virtual character to use the first virtual item. The method also includes determining a category of a subject in an influence range of the first virtual item from a plurality of categories that the first virtual item is capable to influence on. The plurality of categories includes at least a virtual character category and a virtual item category. The method also includes controlling the first virtual item to produce an effect on the subject based on the determined category. The effect can change an attribute value associated with the determined category of the subject.

Abstract: A method for video loop recognition includes determining a first encoding feature and a second encoding from a first video clip pair of a video. The first encoding feature is associated with first modal information, and the second encoding feature is associated with second modal information that is different from the first modal information. A network model that includes a first sequence model associated with the first modal information and a second sequence model associated with the second modal information is acquired. The method includes inputting the first encoding feature to the first sequence model that outputs a first similarity result, inputting the second encoding feature to the second sequence model that outputs a second similarity result, and obtaining a loop comparison result based on a comparison of the first similarity result with the second similarity result. The loop comparison result indicates a video type of the video.

Abstract: The present invention discloses an outer-rotor brushless motor and a housing thereof. The housing is applicable to an outer-rotor brushless motor. The outer-rotor brushless motor includes a spindle, a stator holder mounted on a lower portion of the spindle through a bearing, and an outer rotor assembly fixedly mounted on an upper portion of the spindle. The housing comprises a cavity with a bottom being open, and covers the outer rotor assembly. At least one platform extends outwards from a bottom of a side wall of the housing, and is detachably fixed to the stator holder to form air inlet gaps. Multiple air outlet openings corresponding to the outer rotor assembly are formed in the side wall of the housing in a circumferential direction. The motor can be effectively protected and cooled.

Abstract: The present disclosure provides a method of manufacturing a middle bezel, a backlight module, and a display device thereof. The method includes: providing a bezel body, a film layer, and a hot-melt adhesive; heating the hot-melt adhesive, coating a heated hot-melt adhesive on a side of the bezel body, and then covering the heated hot-melt adhesive with a film layer to obtain a film-covered bezel body; and curing the heated hot-melt adhesive in the film-covered bezel body to obtain the middle bezel.

Abstract: Embodiments of this disclosure discloses a map data processing method, apparatus, computer device and storage medium, the method including: outputting navigation route information associated with a navigation user in a navigation interface of a map client application, the navigation interface including map layer information, the navigation route information being superimposed and displayed on the map layer information, and map field information of the map layer information being first field information; obtaining location information of the navigation user on the navigation route information; and updating and displaying the map field information from the first field information to second field information in the navigation interface when the location information is monitored to be in an intersection area on the navigation route information. By the embodiments of this disclosure, the safety during navigation may be improved.

Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: Disclosed are eutectic form A of Elagolix and pyrimethamine, a preparation method therefor and a use thereof. Using Cu-K? radiation, eutectic form A has characteristic peaks represented by a 2? degree at 8.1±0.2°, 12.2±0.2°, 13.3±0.2° and 21.1±0.2° in an X-ray powder diffraction. Eutectic form A has a high purity, a good light radiation stability, a high temperature stability, a high humidity stability and an accelerated stability, is easy to store, and has a slow moisture absorption under the condition of relatively low humidity, wherein the weight gain of eutectic form A by moisture absorption is not more than 1.08% when the relative humidity increases from 0 to 60% RH. Production conditions for eutectic form A are easy to control, same has a simple preparation process and a stable quality, and is easy to industrially produce on a large-scale.

Abstract: The present application discloses a PPG circuit, a biological characteristics detection device and a biological characteristics detection method. The PPG circuit is configured to control a light source and N photoelectric converters to sense biological characteristics of an object under test; the PPG circuit includes: a transmitting channel, K receiving channels, wherein the N photoelectric converters are divided into K sets of photoelectric converter sets, and the K receiving channels respectively correspond to K sets of photoelectric converter sets; and a controller, configured to control the PPG circuit to operate in a partial sampling phase or an full sampling phase, so as to generates J or K biological characteristics sampling results during each of the pulse repetition cycles.