Abstract: A method for restoring waterbird habitats based on the “ecological leverage” theory is provided. The method includes: Step 1: Determining a target waterbird habitat to be restored based on the ecological environment of a target wetland area; Step 2: Selecting several suitable basic ecological units that are distributed in a scattered, circular, or S-shaped pattern from the target wetland area; Step 3: Optimizing the environment of the selected basic ecological units according to the target waterbird habitat; Step 4: Conducting long-term monitoring of the ecological environment and waterbird population of the optimized ecological units, assessing the restoration of the waterbird habitat, and further optimizing the ecological units based on the assessment results. The method of the present invention achieves an enhancement in waterbird diversity within a region with the minimum ecological space and waterbird habitat restoration efforts.

Abstract: An automatic grease injection system comprises a host module, a shunting module and a control module; the host module comprises a power device and a grease injection device, in which the power device drives the grease injection device to output sealing grease; the shunting module comprises a control valve and a connecting pipeline, the connecting pipeline comprises a plurality of shunting branch pipes and a grease injection main pipe which are connected to each other, in which the grease injection main pipe is connected to the grease injection device, and each of the shunting branch pipes is connected to a device to be injected with grease, and sealing grease output by the host module is selectively connected to the device to be injected with grease through the shunting module; the control module is to output control signals to the host module and the shunting module.

Abstract: In a fracturing control apparatus, a first chemical agent storage tank is connected with a first delivery pump, and a material outlet of the first delivery pump communicates with a first position of a first fracturing fluid conveying pipeline. An outlet of the first fracturing fluid conveying pipeline communicates with an inlet of a fracturing pump, an outlet of the fracturing pump communicates with an inlet of a second fracturing fluid conveying pipeline, and a first flow detector is arranged at a second position of the second fracturing fluid conveying pipeline. The first delivery pump is connected with a first output interface of a controller, and the first flow detector is connected with a first input interface of the controller. The fracturing control apparatus and the control method of the fracturing control apparatus are used for adding chemical agents into fracturing fluids.

Abstract: A tunnel constraint anchor cable and a method for improving stability of an initial support structure. The tunnel constraint anchor cable comprises steel strands (1) anchored in surrounding rock, first anchor plates (2) and first anchorage devices (3) which are installed on the surface of the surrounding rock, longitudinal connection members (5) installed between two adjacent steel ribs (4), and second anchor plates (6) and second anchorage devices (7) which are installed on the longitudinal connection members (5). With the support of the tunnel constraint anchor cable, the ability of the initial support structure to resist self instability and destruction is improved, overall settlement and convergence deformation of the initial support structure can also be suppressed. The method for improving stability of an initial support structure has the characteristics of simplicity, speed, reliability, and avoiding interference with subsequent construction processes of tunnels.

Abstract: A control system includes: a fracturing control device configured to acquire a target fracturing pressure of a fracturing unit, perform loop control on the fracturing unit by taking the target fracturing pressure as a control target, and set a target sand blending pressure for the sand blending unit; a sand blending control device configured to perform loop control on the sand blending unit by taking the target sand blending pressure as a control target.

Abstract: Disclosed in the present invention are a cleaning solution for a high-yield-stress ceramic material 3D printing blank, a preparation method therefor and the use thereof. The cleaning solution is composed of a main cleaning agent and an auxiliary cleaning agent, wherein the main cleaning agent is isobornyl acrylate (IBOA), N-acryloylmorpholine (ACMO), hydroxyethyl methacrylate (HEMA), 3-ethyl-3-oxetanemethanol (EHO), or a combination thereof. According to the cleaning solution of the present invention, ultrasonic cleaning or pressure spraying is used, such that the problem of cleaning the high-yield-stress ceramic material 3D printing blank is effectively solved. The present invention is not only simple to clean, but also has a good effect and excellent efficiency.

Abstract: An on-chip adaptive optical receiver system, an optical chip, and a communication device are disclosed, which are applied to optical communication. The on-chip adaptive optical receiver system includes an antenna array configured for separating received spatial light to obtain a plurality of sub-light spots; an optical phased array configured for performing phase-shifting processing and beam combining processing on the sub-light spots to obtain combined light; and an optical receiving module configured for demultiplexing the combined light to obtain beacon light. The optical receiving module is further configured for detecting intensity information of the beacon light and generating a feedback signal according to the intensity information.

Abstract: An on-chip wavefront sensor, an optical chip, and a communication device are disclosed. The on-chip wavefront sensor includes an antenna array configured for separating received spatial light to obtain a plurality of sub-light spots; a reference light source module configured for generating a plurality of intrinsic light beams; a phase shifter array configured for performing phase shifting processing on the intrinsic light beams to obtain reference light; and an optical detection module configured for performing coherent balanced detection according to the reference light and the sub-light spots to obtain a photocurrent corresponding to each of the sub-light spots.

Abstract: The present application provides a method for sending an interference signal, an apparatus for sending an interference signal, an electronic device, and a computer-readable storage medium, the method for sending the interference signal includes: acquiring a power intensity, to be received, of a target signal correctly demodulated in a wireless communication system, the target signal being a signal to be demodulated by a terminal to access the wireless communication system; determining a parameter for sending the interference signal according to the power intensity, to be received, of the target signal correctly demodulated; and sending the interference signal based on the parameter for sending the interference signal, so that the terminal in a target area is unable to correctly demodulate the target signal.

Abstract: A control system includes: a fracturing control device configured to acquire a target fracturing pressure of a fracturing unit, perform loop control on the fracturing unit by taking the target fracturing pressure as a control target, and set a target sand blending pressure for the sand blending unit; a sand blending control device configured to perform loop control on the sand blending unit by taking the target sand blending pressure as a control target.

Abstract: A full-electric drive cementing control system is disclosed.

Abstract: A method, computer system, and a computer program product for projecting a 3D model defined by x, y, z coordinates onto the surface of a 2D image defined by u, v coordinates is provided. The present invention may include receiving a 3D model having a plurality of polygons, wherein certain edges are marked as seams. The present invention may include receiving input from a user, wherein the input comprises painting one or more parts of the 3D model in different colors, wherein the colors correspond with a weight of the area painted. The present invention may include unwrapping, by a processor, a 2D texture from the 3D model using a projection algorithm. The present invention may include generating a rectangular boundary around each island. The present invention may include scaling each island according to a gradient score.

Abstract: A full-electric drive cementing control system is disclosed.

Abstract: An on-chip adaptive optical receiver system, an optical chip, and a communication device are disclosed, which are applied to optical communication. The on-chip adaptive optical receiver system includes an antenna array configured for separating received spatial light to obtain a plurality of sub-light spots; an optical phased array configured for performing phase-shifting processing and beam combining processing on the sub-light spots to obtain combined light; and an optical receiving module configured for demultiplexing the combined light to obtain beacon light. The optical receiving module is further configured for detecting intensity information of the beacon light and generating a feedback signal according to the intensity information.

Abstract: An on-chip wavefront sensor, an optical chip, and a communication device are disclosed. The on-chip wavefront sensor includes an antenna array configured for separating received spatial light to obtain a plurality of sub-light spots; a reference light source module configured for generating a plurality of intrinsic light beams; a phase shifter array configured for performing phase shifting processing on the intrinsic light beams to obtain reference light; and an optical detection module configured for performing coherent balanced detection according to the reference light and the sub-light spots to obtain a photocurrent corresponding to each of the sub-light spots.

Abstract: The present invention provides a mRNA composition for microneedle administration and its application. The composition includes an aqueous phase solution and a lipid solution, wherein the lipid solution encapsulates the substance in the aqueous phase solution to form lipid nanoparticles (LNPs), and the aqueous phase solution includes mRNA encoding the corresponding protein and a buffer. It was found that an improved buffer pH could substantially increase the drug loading capacity of LNPs, and reduce the use level of composition and excipients and the dose for microneedle administration with less toxic side effects and better therapeutic effects, and the microneedle administration technology could achieve increased effective expression, decreased expression in the liver, and prolonged in vivo expression of mRNA composition, and increased antibody titer in response to low-dose mRNA in vivo. The present invention really realizes microneedle intradermal administration of mRNA composition.