12results about How to "Overcome space" patented technology

The remediation method for the moderately and severely cadmium-polluted rice field aims at strictly controlled cadmium-polluted rice fields, and is divided into two stages of strict control and safe utilization for remediation. In the strict management and control stage, an activating agent is applied to the soil in spring, then microalgae are inoculated, cadmium-enriched plants are planted, the plants are collected after being full of the microalgae, the plants are harvested when the plants grow to the enrichment extreme value, stubbles are reserved for growth, and the steps are repeated till winter; applying an activating agent in winter, planting green manure, and harvesting in spring in the next year; the process is cyclically carried out until the cadmium content of the soil is reduced to a safe utilization level. Entering a safe utilization stage, applying an activating agent in spring, inoculating nitrogen-fixing cyanobacteria, collecting the cyanobacteria after the cyanobacteria overgrow, and repeating the steps until the rice seedlings are transplanted; applying nitrogen-fixing blue-green algae, and planting rice; applying an activating agent after rice harvesting, planting winter green manure, and harvesting in next spring; the process is cyclically carried out until the cadmium content of the soil is reduced to a preferential protection level. The method is low in cost, high in remediation efficiency and good in effect, and a new way is provided for cadmium-polluted rice field remediation.

A disinfection spraying device for a livestock shed relates to the technical field of livestock shed appliances and comprises a track arranged at the top in the livestock shed, the track extends longitudinally along the livestock shed, a support frame is movably arranged on the track, a water tank is fixed on the support frame, two extension arms are arranged at one end of the support frame in a swinging manner along the horizontal direction, and water supply pipes are fixed on the extension arms. Sprayers are arranged on the lower surface of the water supply pipe in parallel. The utility model solves the problems that an operator pushes a spraying machine or carries the spraying machine on the back to disinfect the existing animal husbandry, so that time and labor are wasted, a large amount of ground space is occupied, and the use of ground equipment is influenced; and when the distance between the water supply tank and the spray gun is relatively far, the hose is used for supplying water remotely, so that when the spray gun is not used, the relatively long hose is easy to be disordered and occupies a large space, and the environmental cleanliness of the animal husbandry is influenced.

The invention relates to the technical field of remote sensing hydrologic station layout, and provides a remote sensing hydrologic station layout method, which comprises the following steps of: selecting an equal-flux river reach according to DEM data and rainfall data monitored by a satellite, extracting a waterline of the river reach by means of remote sensing data, screening open river reaches on two sides or a single side, and constructing a digital grid model DEM to obtain river topographic information of the river reaches; determining open-type and semi-open-type typical river reaches from the selected river reaches, constructing a relation curve of water surface area and reservoir capacity, determining the length of a unit river reach by combining water volumes and areas in different states, selecting a typical observation river reach with a specific length from the typical river reaches, arranging a remote sensing hydrometric station to enable the remote sensing hydrometric station to collect remote sensing images of the typical observation river reach, the remote sensing image of the typical observation river reach is used for calculating the river flow. According to the method, a good typical observation river reach can be selected, and the remote sensing observation effect is improved.

The application discloses a live material recommendation method and system based on big data analysis, relates to the technical field of streaming media and multimedia content retrieval, and comprises the following steps: S1, collecting live stream video data, performing space-time feature extraction through an improved TimeSformer model, and introducing a space-time Doppler frequency shift modulation mechanism to modulate original time attention weight; S2, outputting 3D scene features and corresponding camera projection parameters; S3, determining a 2D visual blind area; S4, calculating the initial spatial position of the material to be recommended; S5, outputting 3D superposition parameters; S6, generating 3D rendering materials; S7, outputting a live stream; and S8, analyzing the live stream, and performing real-time rendering and interactive display. The application overcomes the limitations of the traditional method, such as plane mapping violation, neglecting 3D space constraints and being driven by behavior data, and provides an efficient solution for live intelligent recommendation.

The invention provides an engine anti-theft function test method and system, equipment and a storage medium, and belongs to the technical field of vehicle test. The test method comprises the following steps: controlling a key to move in a corresponding three-dimensional test space according to a preset test space range, and triggering an authentication process of an anti-theft function; synchronously acquiring spatial position sampling data of the key and an authentication result of the anti-theft function, and generating a training data set; the training data set is input into a preset machine learning model for training, a prediction model of the triggering probability of the engine anti-theft function is obtained, and the prediction model takes the spatial position information of the key as input and takes the probability that the engine anti-theft function is successfully triggered as output; and based on the prediction model, generating a three-dimensional function boundary representing the reliable triggering area of the anti-theft function of the engine. According to the method, automation of the testing process and comprehensive coverage of the three-dimensional space are achieved, the visual three-dimensional function boundary is generated through the machine learning model, and the testing efficiency and reliability are improved.

This invention provides a heat exchange component and an air conditioning system. The heat exchange component includes a heat exchange body, a water inlet chamber, and a fluid drive component, which are disposed within the water inlet chamber. The heat exchange component and air conditioning system provided by this invention directly house the fluid drive component within the water inlet chamber, thereby overcoming the problems of large space occupation and high cost caused by the need for additional design and installation of water pumps in the prior art. Furthermore, placing the drive mechanism outside the water inlet chamber avoids additional waterproofing requirements for the drive mechanism. The first partition separates the inlet and outlet of the fluid drive component, forming a pump body structure and increasing the driving effect of the fluid drive component. Simultaneously, the mounting holes facilitate the disassembly and assembly of the fluid drive component, increasing the efficiency of the heat exchange component's assembly and disassembly. Moreover, the detection mechanism allows for adjustment of the fluid drive component based on flow rate and / or temperature, achieving automatic flow regulation, intelligent control, and energy saving in the air conditioning system.

The embodiment of the utility model provides a digital-to-analog conversion circuit, a controller and electronic equipment, and belongs to the technical field of programmable logic controllers. The circuit comprises a control module for generating a device control signal for controlling an external device. And the digital-to-analog conversion module is connected with the control module and is used for converting the equipment control signal from a digital signal to an analog voltage signal. And the voltage signal output module is used for outputting an analog voltage signal to external equipment. The voltage and current conversion module is connected with the control module, the control module is used for controlling the voltage and current conversion module to be in a module starting state, the voltage and current conversion module is connected with the digital-to-analog conversion module, and the voltage and current conversion module is used for converting an analog voltage signal into an analog current signal according to the module starting state. And the current signal output module is used for outputting an analog current signal to external equipment. According to the embodiment of the invention, the complexity of the digital-to-analog conversion circuit can be reduced, and selectable voltage or current analog signal output can be realized through a simple circuit structure.

This invention discloses a method for optimizing the allocation of urban street green space resources based on lidar, relating to the field of urban planning and management. The method includes: acquiring lidar point cloud data of a target urban street area, preprocessing and classifying it, and extracting vegetation point clouds representing street trees; calculating shape parameters reflecting the external characteristics of street trees, and quantity parameters reflecting the volume and visual greenness of the green space; constructing a comprehensive greening index reflecting the combined relationship between the shape and quantity parameters, and determining key thresholds for matching the shape and quantity parameters through a piecewise linear regression model; and based on the key thresholds, classifying each street within the target urban street area into different types, generating corresponding green space resource optimization allocation strategies. This method achieves collaborative analysis of the shape and quantity indicators of urban street greening, and, based on objective thresholds, classifies them to generate differentiated and human-centered green space resource optimization allocation strategies.

The invention provides an HIV-1 (human immunodeficiency virus-1) nano antibody as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The antibody is expressed by fusing a His tag at the C terminal of a candidate amino acid sequence. The preparation method of the antibody comprises the following steps: immunizing alpaca for multiple times by using a purified antigen cov-NHR VQ capable of simulating an HIV-1gp41NHR tripolymer; peripheral blood of the immunized alpaca is obtained; an intermediate product to be screened is obtained; screening the intermediate product to be screened to obtain a candidate amino acid sequence of the HIV-1 nano antibody; the VHH gene of the candidate amino acid sequence of the antibody is cloned into a prokaryotic expression vector, and nano antibody protein is expressed in the form of VHH-his to obtain the antibody. The antibody can be applied to a modified antibody in a CDR region and preparation of a drug HIV-1 detection reagent for preventing and / or treating HIV-1. The antibody has high specificity and high affinity in a targeted gp41NHR trimer conserved region.

The invention belongs to the technical field of medical nursing equipment, particularly relates to a gastrointestinal surgery postoperative bedridden nursing device, and aims to solve the problems that an existing nursing device is single in body position adjustment, insufficient in getting-up assistance, easy to pull an infusion tube and limited in nursing space, and the following scheme is provided: the nursing device comprises a nursing bed body and two first armrests; the number of the backrests is two, and the two backrests are connected to the nursing bed body and are symmetrically distributed with the longitudinal central axis of the top of the nursing bed body as the center; the gastrointestinal surgery postoperative bedridden nursing device effectively overcomes the defects that in the prior art, body position adjustment is single, getting-up assistance is insufficient, an infusion tube is easy to pull and nursing space is limited, and through multi-module collaborative innovation, the gastrointestinal surgery postoperative bedridden nursing device which is accurate in adaptation, safe, reliable, convenient to operate and wide in adaptability is provided. Omnibearing guarantee is provided for postoperative rehabilitation of the patient, and high practical value and popularization prospects are achieved.

The invention discloses a filter processing method for reducing a surface mounting area, the filter is a body made of a solid dielectric material, the surface of the body is coated with a conductive layer, an input and output isolation groove is formed in the side edge direction of the filter, a conductive layer is formed in the input and output isolation groove, and the conductive layer is formed in the conductive layer. An input and output signal bonding pad or a leading-out signal pin is formed inside the input and output isolation groove in the side edge direction of the filter. According to the invention, side-standing installation is adopted, so that the mounting area can be greatly reduced.

The invention relates to the technical field of high polymer material injection molding and automatic control, in particular to an intelligent injection molding parameter regulation and control system for an injection molding machine, which comprises a rheological digital twinning and feed-forward resolving unit, a wavefront position prediction unit and a control unit, the transient pulsation instruction generation unit is used for analyzing the wavefront position prediction information and superposing a high-frequency micro-amplitude pulsation instruction into the macroscopic injection speed instruction; the high-frequency shearing thermal injection and physical phase change unit is used for reducing the partial melt viscosity of the wavefront based on the high-frequency micro-amplitude pulsation instruction; the energy decoupling and state recovery unit is used for monitoring the execution state of the high-frequency micro-amplitude pulse instruction, so that the polymer melt is recovered to a high-viscosity state and is cooled and solidified; the self-adaptive regulation and control and optimization unit is used for quantifying the fine structure filling rate of the fine structure region and optimizing the transient pulsation generation strategy according to the wave-front speed fluctuation variance; according to the method, the robustness of complete recarving and long-term continuous production of the fine structure is ensured.