Abstract: An efficient transplanting device with an automatic seedling pick-up and supplementation function includes a seedling pick-up device, a seedling discharging device, and a seedling supplementation device. The seedling discharging device is used to discharge plug seedlings for transplantation; the seedling pick-up device is used to transfer the plug seedlings and the seedling supplementation device is used to supplement the plug seeding. A seedling pick-up photoelectric sensor, a detection camera, and a controller are provided for the operations of plug seedling pick-up, supplementation and discharge of the plug seedlings.

Abstract: [OBJECT] The present invention aims to provide suitable workability of an envelope-shaped separator for a lead-acid battery. [SOLVING MEANS] Provided is a separator for a flooded lead-acid battery, the separator including a porous base part, side end parts arranged on width direction ends of the porous base part, and a central part interposed by the side end parts, wherein a first rib is arranged in the central part and second ribs are arranged in the side end parts, the first rib has a rib height greater than that of the second ribs, the ratio of the width (U) between both upper end parts to the rib height (H) of a rib width direction cross-section of the second ribs is 0.08 to 5.50 and the ratio of the width(S) between both lower end parts to the rib height (H) thereof is 0.13 to 6.50, the second ribs have radii of curvature (1, 2) at both upper end parts and both lower end parts of the rib width direction cross-section, and the radii of curvature (1, 2) are in the range of 0.005 to 0.350 mm.

Abstract: A female connector includes: a housing defining a first axial direction and having an opening at a first end of the housing for insertion of a male connector, a first limiting member being provided on an outer periphery of the housing; a valve assembly arranged in the housing; a base defining a receiving passage extending along the first axial direction; a bushing sleeved outside the housing and arranged in the receiving passage to retain the housing in the receiving passage, the bushing being elastically deformable; and a mounting member fixed to an axial end of the base. The first limiting member is confined between the axial end and the mounting member, and a movement space for the first limiting member to move therein is defined between the axial end and the mounting member. A connector assembly includes the female connector.

Abstract: A system and method for flood hazard estimation inputs a satellite elevation map and applies a machine learning model to output a geographic map representing flood hazard areas. The machine learning model is trained using a generative adversarial network (GAN) to produce an output of a deterministic hazard mapping algorithm. A GAN objective applies a loss function, reweighted to increase the importance of high hazard areas. The method retrieves a DEM topography file representing elevation data of an identified terrain, and applies a sink-filling algorithm to detect and fill sinks in the DEM topography. The algorithm subtracts the DEM elevation data to generate a filled topography, and identifies flattest regions of the filled topography. The algorithm then generates a flood hazard map by merging the filled topography and the DEM elevation data, using a weighting function that balances the detected sinks and the flattest regions of the filled topography.

Abstract: The present disclosure belongs to the field of biomedical materials, and specifically relates to a medical tissue adhesive, and a preparation method therefor and the use thereof, and a composition and a kit for preparing the medical tissue adhesive. According to the medical tissue adhesive provided by the present disclosure, a three-dimensional net-shaped gel skeleton structure is formed by means of the mutual crosslinking of a polyethylene glycol derivative L a polyethylene glycol derivative H and trilysine. Moreover, the gel skeleton has a crosslinked network density and intermolecular interaction that can be improved, and accordingly has an improved structure bonding strength and mechanical strength.

Abstract: The invention relates to chemically reactive and/or biologically active compounds, reagents and compositions thereof. More particularly, the invention provides novel reagents that are useful in chemical synthesis, functionalization, delivery, probing and/or analytical measurements of small molecule drugs, proteins, antibodies and other biomolecules. The invention provides novel biologically active agents useful as diagnostics or therapeutics, and related composition and methods of uses thereof.

Abstract: A display substrate is provided, including a display substrate that includes a display area and a bezel area; a plurality of scanning signal lines; a gate driver circuit in the bezel area; a plurality of load compensation units in the bezel area, where the load compensation units are between the gate driver circuit and a plurality of pixel units; and a plurality of scanning signal lead wires in the bezel area. At least one load compensation unit includes a compensation capacitor including a first compensation capacitor electrode in a first conductive layer and a second compensation capacitor electrode in a semiconductor layer, and an orthographic projection of the first compensation capacitor electrode on the base substrate at least partially overlaps with an orthographic projection of the second compensation capacitor electrode on the base substrate. The first compensation capacitor electrode is electrically connected to a scanning signal lead wire.

Abstract: The present disclosure discloses an explosion-proof housing and an electrical device. The explosion-proof housing includes a first housing body, a second housing body, a fastener, and a limit member. The first housing body has a first mounting hole. The second housing body covers the first housing body and has a second mounting hole. The fastener passes through the first mounting hole and the second mounting hole to connect the first housing body to the second housing body. The limit member is disposed between the first mounting hole and the fastener and has a first state and a second state. In the first state, the limit member is adapted to limit a limit head of the fastener outside the first mounting hole. In the second state, at least part of the limit member is disengaged from the limit head to allow the limit head to enter into the first mounting hole.

Abstract: A multi-chain measurement circuit is disclosed. The measurement circuit includes first and second chains of serially-connected buffer circuits coupled in parallel, each of which propagates an input signal. A set of storage circuits is configured to store logic values generated by the first and second sets of buffer circuits in response to the transitioning of a clock signal. The logic values stored in the storage circuits result in a digital value indicative of a total number of serially-connected storage circuits through which the input signal has propagated at the time of the transition of the operating clock signal.

Abstract: The disclosure provides a method, system, device and medium for online monitoring of a plane stress field without baseline data based on a piezoelectric transducer array. Since Lamb waves have complex multi-mode characteristics, a suitable excitation frequency needs to be selected according to geometric dimensions of the structure to be measured, and then, only low-order mode Lamb waves are excited inside the measured structure to avoid serious waveform aliasing. For isotropic measured objects, anisotropic characteristics will be generated under the action of pre-stresses, that is, the propagation velocities of ultrasonic waves in all directions are different, but there is a linear relationship between velocity changes in different propagation directions and stresses. Therefore, there is still a linear relationship between the difference of velocity changes in different propagation directions and the stress.

Abstract: A method, system, device, and medium for online stress monitoring without baseline data based on single-mode multi-frequency signal fusion are provided.

Abstract: An efficient transplanting device with an automatic seedling pick-up and supplementation function includes a seedling pick-up device, a seedling discharging device, and a seedling supplementation device. The seedling discharging device is used to discharge plug seedlings for transplantation; the seedling pick-up device is used to transfer the plug seedlings and the seedling supplementation device is used to supplement the plug seeding. A seedling pick-up photoelectric sensor, a detection camera, and a controller are provided for the operations of plug seedling pick-up, supplementation and discharge of the plug seedlings.

Abstract: A chimeric peptide-modified SIS membrane, a preparation method therefor and an application thereof. The chimeric peptide-modified SIS membrane is used to promote the expression of ITG-?3, ITG-?1, BMP2, RUNX2, ALP and OPN, and inhibits the growth of Streptococcus gordonii and Streptococcus sanguinis, thereby enabling the SIS membrane to exert antibacterial, osteogenic and healing-promoting biological functions. The SIS membrane (that is, a chimeric peptide-modified GBR film) can be used for clinical treatment of infectious bone defects.

Abstract: Provided is a six-degree-of-freedom vibrational excitation foundation platform, which solves the problem of the existing vibrational excitation foundation equipment that a vibrational excitation frequency band is narrow due to low natural frequency of the equipment. The six-degree-of-freedom vibrational excitation foundation platform includes a marble platform support frame, which is fixedly installed on a concrete floor through a backing plate; and a marble platform, which serves as an excitated device and is located in a middle of the support frame, and four sides of the marble platform support frame are connected to the motors fixedly connected to the support frame through connecting plates. The parallel connection of motor outputs solves the problem of insufficient excitation, and natural frequency of each part of the platform is increased by optimizing the marble platform and the support frame, such that the frequencies are controllable within the vibrational excitation frequency band.

Abstract: Disclosed is a method and an apparatus for backlight control and a display device. The apparatus comprises: a block brightness module for calculating an initial brightness value of each backlight block in a backlight source according to initial image data; a filtering module for performing spatial filtering and temporal filtering on the initial brightness value of each backlight block to obtain an adjusted brightness value of each backlight block; a control module for generating a brightness control signal according to the adjusted brightness value of each backlight block to adjust brightness of the backlight source. An intermediate brightness value of each backlight block is no less than the initial brightness value of that backlight block. Based on backlight adjustment for reducing power consumption, display effect reduction on a portion of image due to uneven brightness of the portion of the image during the spatial filtering is avoided.

Abstract: A biological sleeve for accommodating an implantable medical device, a preparation method therefor and a use thereof. The biological sleeve is formed of a sterilized and decellularized extracellular matrix material, and has an integrally molded bag structure (1). An implantable medical device is placed in an accommodating cavity of the biological sleeve, which may provide a physical barrier for the implantable medical device, avoiding direct contact between the implantable medical device and an organism, thus reducing the occurrence of complications such as infection, inflammation, scarring and calcification after implantation.

Abstract: Provided is a design method for a support structure of a large-scale vibrational excitation platform. The present invention designs a dimension of a support structure matching a dimension of the vibrational excitation platform, selects appropriate materials to guarantee structural stiffness, performs simulation and verification of finite elements to verify a natural frequency and stress deformation of the support structure, breaks down the support structure to facilitate processing, transportation and assembly, and optimizes structural parameters to enhance stability and stiffness of the support structure. The support structure designed using the design method in the present invention features strong stability, simple structure, high natural frequency and easy to mount. The support structure is assembled by means of welding and threaded connections, and is reinforced with reinforcement plates at important parts, such that structural stiffness and strength of the support structure are guaranteed.

Abstract: Disclosed is a supercapacitor based automatic energy-saving system of a direct-current high-voltage beam pumping unit. The system comprises a frequency converter, wherein a direct-current bus of the frequency converter is combined with a direct-current contactor, a BUCK/BOOST power conversion circuit and an energy storage unit to form a series loop. The system further comprises a single-chip microcomputer system mainboard, which is in communication connection with the energy storage unit. A BUCK/BOOST pre-stage PWM processing circuit is connected to the single-chip microcomputer system mainboard and the BUCK/BOOST pre-stage PWM processing circuit includes a dead zone logic processing circuit, an optical coupling isolator, an IGBT power drive and protection circuit.

Abstract: Disclosed is a GNSS receiver, including a state monitoring sensor and a processor. The state monitoring sensor is configured to monitor a state of the GNSS receiver, and generate a first triggering signal according to the state of the GNSS receiver. The processor is configured to switch from a resting operating state to a wake-up operating state according to the first triggering signal, and transmit position information about the GNSS receiver to a remote server at a preset frequency. Further disclosed is a GNSS device.

Abstract: The present disclosure relates a modified SIS membrane for tissue repair, a preparation method therefor and a use thereof. Specifically provided are a composition comprising a fusion polypeptide-modified SIS membrane and an extracellular vesicle, as well as a preparation method for and a use of the composition. It is proved that the fusion polypeptide-mediated SIS membrane and the composition containing the SIS membrane and the extracellular vesicle have excellent biological functions, and provide a broad prospect for treating bone defects or facilitating tissue healing or bone regeneration.