Abstract: A mating part in a locking path of a stop part so that the locking part is not automatically lockable and a first connection part is in a state of remaining unlocked from a second connection part.

Abstract: A data processing method and apparatus. An implementation solution including: analyzing an encoding file of a video stream to obtain a target image frame set corresponding to the encoding file and target quantization parameters corresponding to the target image frame set, a target quantization parameter being quantization parameter of a target image frame when the target image frame meets a quality evaluation index; one the basis of a comparison result of the target quantization parameters corresponding to the target image frame set, the encoding file and initial quantization parameters of image frames of the video stream, determining new quantization parameters of the target image frames in the target image frame set and new bit numbers of the target image frames corresponding to the new quantization parameters; and updating the initial quantization parameters and the initial bit numbers of the image frames of the video stream.

Abstract: A video transcoding method includes: decoding a source video stream to obtain a first video frame and decoding information, and inserting watermark information into the first video frame to generate a second video frame; determining types of macroblocks in the second video frame based on the watermark information and the decoding information; for each macroblock, determining target encoding parameters required for encoding the macroblock based on the type of the macroblock and a rate distortion optimization (RDO) algorithm; and performing macroblock coding according to the target coding parameters of each macroblock, so as to generate a transcoded target video stream.

Abstract: The present application provides a device supporting card-swiping, which relates to the technical field of communications. The device supporting card-swiping comprises a display screen (1), a protective back plate (2) and a contactless card reader (3). Wherein the antenna (310) of the contactless card reader (3) is arranged between the display screen (1) and the protective back plate (2) for sensing a user's card swiping signal. The device supporting card-swiping can increase the effective card swiping distance and improve user experience.

Abstract: A sewage uniform distribution treatment device for an aerobic granular sludge system and a use method therefor, the device comprising a reactor tank body (1), a water inlet device (2), and a water outlet device (3). The water inlet device (2) comprises a water inlet inner channel (4), a water inlet weir (5), a water inlet outer channel (6), a vertical water inlet branch pipe (7), and vertical bell mouths (8); the water outlet device (3) comprises a water outlet main pipe (9), a water outlet channel (10), a water outlet weir (11), an outer baffle plate (12), and an inner baffle plate (13); the water outlet channel is connected to the water outlet main pipe; the outer baffle plate is a vertical baffle plate; the inner baffle plate is located at the bottom of the water outlet channel and is connected to the water outlet channel.

Abstract: A method of preparing a piezoelectric single crystal with high piezoelectricity and near- perfect transparency. The method includes depositing electrodes on two opposition surfaces of a piezoelectric single crystal which is a ferroelectric crystal; AC-poling the piezoelectric single crystal through the electrodes by repeatedly changing polarity of an AC electric field; and after polarization, removing the electrodes on the two opposition surfaces of the piezoelectric single crystal and then depositing Ag nanowire or indium tin oxide (ITO) as electrodes on the two opposition surfaces of the piezoelectric single crystal. Repeatedly changing the polarity of the polarized electric field can increase the domain size of the ferroelectric crystal, or reduce the domain wall density of the domain structure, thereby improving the transparency of the piezoelectric single crystal having high piezoelectric.

Abstract: The present disclosure belongs to the technical field of sewage treatment, and discloses a method and system for enhanced culture of aerobic granular sludge. The system includes a reaction tank, a water inlet and outlet unit, an aeration unit, and a sludge discharge unit. The water inlet and outlet unit includes a water inlet pump, a water inlet electric valve, a liquid flowmeter, a sewage uniform distribution treatment device, buffers, a water drainage pipe, and a water drainage electric valve. The aeration unit includes a blower, microporous aerators, and a gas flowmeter. The sludge discharge unit includes sludge discharge pumps, a sludge discharge pipe, a sludge discharge electric valve, and a sludge concentration meter. In the present disclosure, a multi-point uniform water distribution method is used.

Abstract: The present invention belongs to the technical field of sewage denitrification. Disclosed are a sewage treatment system and method of continuous flow step-feed short-cut denitrification-anaerobic ammonia oxidation coupled with denitrification. The system comprises a primary sedimentation tank, a bioreactor and a secondary sedimentation tank, which are connected in sequence, wherein the bioreactor comprises a pre-starvation zone, a first hypoxic zone, a first aerobic zone, a second hypoxic zone and a second aerobic zone: an agitator is arranged in each of the pre-starvation zone, the first hypoxic zone and the second hypoxic zone; an aeration device is arranged in both the first aerobic zone and the second aerobic zone; a polyurethane sponge filler is arranged in both the first hypoxic zone and the second hypoxic zone; and a nitrification liquid reflux pump is arranged between the first aerobic zone and the pre-starvation zone.

Abstract: A fast, batch and non-invasive identification and screening method of cows with A2 ?-casein genotype of producing A2 milk belongs to the cow genotyping field and includes steps of: 1) collecting milk samples of cows; 2) detecting and acquiring mid-infrared spectral data; 3) data preprocessing to remove outliers; 4) dividing the dataset after the preprocessing into a training set and a testing set according to random sampling principle; 5) screening modeling spectral wavebands; and 6) combining different spectrum preprocessing methods with a modeling algorithm to establish classification models, using accuracy, sensitivity, specificity and AUC to evaluate the models, and determining the best classification model. The method can realize rapid and batch identification of cows of producing A2 milk and non A2 milk, and may have advantages of fast, high precision, low cost, simple operation, batch determination, no trauma (no blood collection, hair plucking, and tissue extraction), and strong practicability.

Abstract: An apparatus for separating particles from a particulate suspension comprises a conduit comprising a plurality of elongate channels extending in adjacent alignment along a spiral path at different curvature radii from an axis of the spiral path. Longitudinal sidewalls of the elongate channels are fluidly joined together to allow for transfer of fluid between them. The apparatus also comprises an inlet for directing a particulate suspension into the conduit and outlets that direct fluid from the particulate suspension out from different discharge positions. At least first and second of the elongate channels are approximately circular in cross section and comprise a shared longitudinal sidewall, wherein the shared longitudinal sidewall comprises opposed uppermost and lowermost sidewall sections that are laterally offset from one another relative to the axis of the spiral path to allow for transfer of helically flowing fluid between the first and second of the elongate channels.

Abstract: A relaxor-PT based piezoelectric crystal is disclosed, comprising the general formula of (Pb1-1.5xMx){[(MI,MII)1-z(MI?,MII?)z]1-yTiy}O3, wherein: M is a rare earth cation; MI is selected from the group consisting of Mg2+, Zn2+, Yb3+, Sc3+, and In3+; MII is Nb5+; MI? is selected from the group consisting of Mg2+, Zn2+, Yb3+, Sc3+, In3+, and Zr4; MII? is Nb5+ or Zr4+; 0<x?0.05; 0.02<y<0.7; and 0?z?1, provided that if either MI? or MII? is Zr4+, both MI? and MII? are Zr4+. A method for forming the relaxor-PT based piezoelectric crystal is disclosed, comprising pre-synthesizing precursor materials by calcining mixed oxides, mixing the precursor materials with single oxides and calcining to form a feeding material, and growing the relaxor-PT based piezoelectric crystal having the general formula of (Pb1-1.5xMx){[(MI,MII)1-z(MI?,MII?)z]1-yTiy}O3 from the feeding material by a Bridgman method.

Abstract: The present invention provides an ultra-long thermally insulated pipeline, which includes a working steel pipe and an outer sleeve steel pipe sleeving the working steel pipe, where an annular vacuum cavity is formed between the working steel pipe and the outer sleeve steel pipe; two ends of the outer sleeve steel pipe are tightened; and the tightened parts of the outer sleeve steel pipe are sealed with an outer wall of the working steel pipe through a plurality of sealing rings. The ultra-long thermally insulated pipeline further includes a spiral ring supporting frame which is disposed outside the working steel pipe and is in contact with a wall of the working steel pipe. The spiral ring supporting frame is made of a phase change material The present invention further provides a forming method of an ultra-long thermally insulated pipeline.

Abstract: The present invention discloses a multichannel composite coiled tubing (CCT). The multichannel composite coiled tubing includes three inner pipes and an insulator, where the insulator is provided therein with a plurality of the inner pipes; the insulator is nested inside a sheath; a protective layer is welded outside the sheath; a compressive layer is welded outside the protective layer; a plurality of armored tubes are bonded to the outside of the compressive layer; a fiber layer is bonded to the outside of the armored tubes. In the present invention, the operation and test procedures are simple, the pressure is easy to measure, and a water injection additive can be easily selected to match different reservoirs. In addition, the coiled tubing is insulated, satisfying pressure transmission and logging through two cables. The compressive layer and the armored tube are convenient for extending the life of the tubing.

Abstract: An integrated photovoltaic cable having a connecting terminal and a housing injection-molded on the connecting terminal. The connecting terminal has a connecting sheet, a through hole, and a plurality of U-shape groove sheets. Exposed conductors obtained by peeling front ends of the photovoltaic cable are respectively placed into corresponding U-shape groove sheets and crimped by a crimping plier. A manufacturing method for manufacturing the integrated photovoltaic cable includes three steps of manufacturing a connecting terminal, crimping photovoltaic wires, and injection molding a housing. An improvement of the cable connecting structure simplifies the production, improves the connecting quality, and reduces a volume of an adapter. The conductor end and the U-shape groove are firmly and conveniently connected to ensure the connection quality, reduce a contact resistance of a connecting wire, and cause a smaller volume of the adapter.

Abstract: The present application provides a device supporting card-swiping, which relates to the technical field of communications. The device supporting card-swiping comprises a display screen (1), a protective back plate (2) and a contactless card reader (3). Wherein the antenna (310) of the contactless card reader (3) is arranged between the display screen (1) and the protective back plate (2) for sensing a user's card swiping signal. The device supporting card-swiping can increase the effective card swiping distance and improve user experience.

Abstract: Provided are an anaerobic ammoxidation synergistic nitrogen removal process device of municipal sewage main and side streams and an application method thereof, comprising a municipal sewage raw water tank (1), a biological reaction pool (2), a secondary sedimentation pool (3), a sludge digestion solution raw water tank (4) and a sludge digestion solution AOB strengthening pool (5); wherein, the municipal sewage raw water tank (1) is connected with a water inlet valve (2.2) of the biological reaction pool (2) through a water inlet pump (2.1) of the biological reaction pool (2); the biological reaction pool (2) is connected with the secondary sedimentation pool (3) through a secondary sedimentation pool connection pipe (3.3); the sludge digestion solution raw water tank (4) is connected with a water outlet valve (4.1) of the sludge digestion solution raw water tank (4) through a water inlet pump (4.

Abstract: A homogenization process for coiled tubing is provided. After being preheated in a sectional manner and quenched and tempered, laser-welded low-carbon alloy steel coiled tubing is spray cooled, and then is tempered to obtain homogeneous silvery coiled tubing. Microstructural uniformity of the silvery coiled tubing after the treatment is greatly improved in a welding seam region, a heat sensing region, and a tube wall, situations in which an outer surface of the coiled tubing is burnt and oxidized in the homogenization process are reduced, and a service life of the coiled tubing is prolonged. Moreover, homogeneous coiled tubing with different yield strengths and tensile strengths can be obtained by changing a temperature of the tempering, so that production costs are reduced.

Abstract: An integrated photovoltaic cable having a connecting terminal and a housing injection-molded on the connecting terminal. The connecting terminal has a connecting sheet, a through hole, and a plurality of U-shape groove sheets. Exposed conductors obtained by peeling front ends of the photovoltaic cable are respectively placed into corresponding U-shape groove sheets and crimped by a crimping plier. A manufacturing method for manufacturing the integrated photovoltaic cable includes three steps of manufacturing a connecting terminal, crimping photovoltaic wires, and injection molding a housing. An improvement of the cable connecting structure simplifies the production, improves the connecting quality, and reduces a volume of an adapter. The conductor end and the U-shape groove are firmly and conveniently connected to ensure the connection quality, reduce a contact resistance of a connecting wire, and cause a smaller volume of the adapter.

Abstract: A tubing for an electric submersible pump (ESP) for oil production. Cables are wrapped outside a first outer sheath at equal intervals; an inner side of the cable is covered with an insulating layer; an inner side of the insulating layer is covered with an aluminum tape; and a conductor is nested inside the aluminum tape. The inner pipe is combined with the cable to meet the oil production requirement of a coiled tubing (CT) and solve a power transmission problem of the submersible pump. The first outer sheath and a second outer sheath ensure that the tubing has a high bearing capacity and stability inside. A first steel belt and a second steel belt ensure a high resistance to pulling and deformation inside the tubing in use.