12results about How to "Fast" patented technology

The invention discloses a rapid magnetic resonance imaging reconstruction and segmentation method and system, a medium and a product, and relates to the technical field of image processing. The method comprises the following steps: decomposing original three-dimensional magnetic resonance data into a plurality of independent two-dimensional magnetic resonance data slices along a slice sequence; image reconstruction is carried out on the two-dimensional magnetic resonance data slices through a pre-trained forward generator in the frequency domain Schrodinger bridge diffusion model so as to generate a two-dimensional magnetic resonance image, and the forward generator integrates a Fourier convolution module and is used for carrying out frequency domain transformation and feature enhancement processing on feature mapping in the image reconstruction process; inputting each two-dimensional magnetic resonance image into a pre-trained segmentation model in sequence, performing segmentation of a target region and a preset dangerous organ, and generating a corresponding two-dimensional segmentation mask; all the two-dimensional segmentation masks are rearranged and stacked according to the slicing sequence, and a three-dimensional segmentation result is generated through three-dimensional fusion operation. By implementing the technical scheme, magnetic resonance imaging reconstruction and segmentation can be quickly and accurately carried out.

The utility model belongs to the technical field of kitchen and bath equipment, and discloses a control box and an electronic temperature-adjusting parallel-connection induction faucet, the electronic temperature-adjusting parallel-connection induction faucet is provided with the control box, the control box comprises a box body, a mixing valve and a control piece, and the box body is provided with a first inlet, a second inlet and a mixed water outlet; the mixing valve is arranged in the box body and provided with a mixing water channel, the first inlet, the second inlet and the mixing water outlet all communicate with the mixing water channel, the mixing valve is in signal connection with the control system through the driving part, and the driving part can adjust at least one of the temperature and the volume of fluid passing through the mixing water channel through the control system; the control part is arranged on the box body, the control part is provided with a plurality of fixed gears, the control part and the driving part are in control connection through a control system, and the control part controls the driving part through the plurality of fixed gears to drive the mixing valve to adjust the fluid passing through the mixing water channel, so that the adjustment convenience can be improved, and meanwhile, the energy consumption can be reduced.

The utility model provides a negative pressure conveying anti-blocking device, which relates to the technical field of material conveying, and specifically comprises a fixing groove arranged on the inner side wall of a pipeline piece, a through groove arranged on the side wall of the pipeline piece, an air inlet end, a feeding end and a discharging end arranged on the pipeline piece, a first sieve plate provided with an interlayer, a plurality of first sieve holes uniformly arranged on the first sieve plate, and a second sieve plate provided with a plurality of second sieve holes uniformly arranged on the interlayer, one end of the first sieve plate penetrates through the through groove to be arranged in the fixing groove, a cover plate is arranged at the other end of the first sieve plate, a first through hole is formed in the cover plate, the cover plate covers the through groove, the cover plate is fixed to the pipeline piece, a plurality of second sieve holes and a plurality of third sieve holes are alternately and evenly formed in the second sieve plate, and the second sieve plate is slidably arranged in the interlayer; a moving rod is arranged at the end, close to the cover plate, of the second screening plate and penetrates through the first through hole to be arranged on the cover plate. The problems that when gas in a pipeline flows in the pipeline, material accumulation is caused by airflow short circuit or the local airflow speed is too high, and then the material conveying efficiency is reduced are solved.

The intelligent automobile lane-changing decision method and device, the electronic device and the storage medium provided by the embodiments of the present disclosure comprise: constructing a virtual lane-changing scene by using a simulation method; constructing a decision model for determining a mapping function between a state and a reward, obtaining a Q table for evaluating the lane-changing feasibility of an intelligent automobile based on the mapping function, and obtaining a lane-changing decision, i.e., "lane-changing" or "not lane-changing"; based on a greedy algorithm, making the intelligent automobile produce a random lane-changing behavior in the constructed virtual lane-changing scene, storing the state and the reward of the current lane-changing behavior in an experience replay pool, when the number of state-reward pairs in the experience replay pool reaches a minimum sample number, randomly sampling a plurality of state-reward pairs from the experience replay pool for single-step training of the decision model, storing a new state-reward pair generated in the training process in the experience replay pool, repeatedly performing the above training process until a maximum training number is reached, and obtaining a lane-changing decision model. The lane-changing decision generated by the present disclosure is high in safety and wide in applicability.

The application discloses a point pair registration method and system based on feature guidance and double constraints, and belongs to the technical field of computer vision and robot grabbing. The method aims to solve the problems of recognition failure and insufficient estimation accuracy of traditional methods when parts are blocked and stacked, and point cloud features are not obvious. The scheme adopts a two-stage optimization strategy. Firstly, in the coarse registration stage, an adaptive sampling PPF algorithm guided by geometric features is proposed. By preferentially sampling points in the edge, curvature and other feature obvious areas, the robustness and efficiency of matching are improved. Secondly, in the fine registration stage, an ICP algorithm with multi-constraint optimization is proposed. The pose result obtained by coarse registration is used as the initial value. Through rotation and angle constraint, a multi-objective optimization function is constructed to guide the fine registration process to converge in the correct direction and avoid falling into local optimum, thereby ensuring the accuracy and physical feasibility of the final pose estimation. The application significantly improves the accuracy of industrial part pose recognition.

The application discloses a kind of composite hydrogel adsorbent and its preparation method and application, it is related to water pollution treatment technical field.The raw material of the composite hydrogel adsorbent of the present application includes chitosan, acrylic acid, sodium methacryl sulfonate and coffee residue;Among them, the molar mass of sodium methacryl sulfonate is 2.3~2.9% of the molar mass of acrylic acid;The mass of chitosan is 0.09~6.3% of the total mass of sodium methacryl sulfonate and acrylic acid;The mass of coffee residue is 0.4~1.8% of the total mass of sodium methacryl sulfonate and acrylic acid, and the composite hydrogel adsorbent is prepared by free radical polymerization reaction.The composite hydrogel adsorbent of the present application has strong adsorption capacity and fast rate for dyes in wastewater, especially methylene blue and crystal violet, significantly improves the efficiency of wastewater treatment, provides an efficient, economical and environmentally friendly solution for dye wastewater treatment, and has good practical application prospect.

The utility model discloses an earphone spraying production device which structurally comprises a bottom box, a paint spraying frame and a drying frame, after an earphone is arranged at the upper end through an ejector pin, the earphone can be rotated into the paint spraying frame under the condition that a first motor drives a rotating plate to rotate, and paint liquid can be sprayed to the surface of the earphone through a liquid conveying pipe and a nozzle under a pump body; when spraying is conducted, another earphone can be placed on another ejector pin, the earphone is rotated into the paint spraying frame in the rotating process, so that the paint spraying speed is higher, the working time is saved, the closing and opening time is shortened, and when the second motor drives the ejector pin to enable the earphone to rotate, the paint spraying effect is better and more complete during paint spraying; and then the sprayed earphones are rotated into the drying frame in the rotating process, the drying speed of paint liquid can be increased under the heating part in the earphones, the situation that the natural airing efficiency is low is reduced, and the spraying quality is better while the feeding work efficiency is improved.

This invention provides a method for separating and extracting lead-212 and bismuth-212 from monazite-processed radium slag dissolution solution, belonging to the field of medical radioisotope preparation technology. The method uses monazite-processed radium slag dissolution solution containing radium-228 decay chain substances as raw material. First, halide ions are added to the raw material and the acidity is adjusted to obtain an acidic radium slag dissolution solution. Then, the solution is pretreated with an anion exchange resin column to remove impurities. After static decay, a decay solution containing lead-212 and bismuth-212 is generated. Utilizing the halogen content and acidic environment of the solution itself, the solution is selectively adsorbed again by an anion exchange resin column. Subsequently, elution is performed using a desorption reagent, and the medium conditions are readjusted for repeated adsorption and desorption, ultimately yielding a high-purity and high-specific-activity lead-212 and bismuth-212 finished desorption solution. This invention can efficiently extract lead-212 and bismuth-212 with fast extraction speed, high recovery rate and purity, and is less likely to cause organic pollution in the product.

The application provides an embroidery machine upper and lower shaft parallel zero finding control method and system in the technical field of embroidery machine control, and the method comprises the following steps: step S1, calibrating the upper zero position of the upper shaft motor and storing it; step S2, when the embroidery machine is started or receives a zero finding instruction, triggering a parallel zero finding process; step S3, controlling the jump motor to perform an action, and retracting the needle of the upper head to a jump-off position; step S4, synchronously performing the upper and lower shaft zero finding steps; the upper shaft zero finding step comprises the following steps: reading the upper zero position, writing the upper zero position back to the upper servo driver, and controlling the upper shaft motor to run to the upper zero position; the lower shaft zero finding step comprises the following steps: controlling the lower shaft motor to run to the lower zero position through the lower servo driver; step S5, obtaining the reading of the lower shaft encoder when the lower shaft is zero finding, and judging whether the actual position of the lower shaft reaches the standard or not; if not, position compensation is performed. The application has the advantages that the zero finding efficiency and system stability are greatly improved, and the hardware cost is reduced.

The utility model discloses a CBN blade transfer device, it includes inverted U type chassis, both sides of inverted U type chassis all rotatoryly installed have gyro wheel, and the middle part symmetry fixed mounting of inverted U type chassis top has two frames, and the inside rotatoryly installed of two frames all have screw rod, and the surface all screw connection of two screw rods has the moving plate, and one side of two moving plates all fixed mounting has the vertical baffle, and the upper portion of two vertical baffle opposite sides all installs electric telescopic handle, and the middle part and lower part of two vertical baffle all install clamping fixing spare and tow load handling spare, and electric telescopic handle is connected with clamping fixing spare and tow load handling spare, and is equipped with CBN blade package box between two clamping fixing spares and two tow load handling spares, this transfer device has clamping and lifting structure, and clamping and lifting structure can effectively guarantee the security and convenience of transfer, and lifting structure can conveniently stack the CBN blade of packing and case.

The application discloses a kind of buffer energy storage quick automatic antenna lifting device, comprising: primary lifting buffer energy storage piece, including lifting support piece, lifting relay piece, lifting power piece and first energy storage buffer piece, lifting relay piece, lifting power piece and first energy storage buffer piece are all arranged on lifting support piece, and lifting relay piece is pulled to unfold and release contraction by lifting power piece, and first energy storage buffer piece collects potential energy and potential energy of lifting relay piece;Second lifting buffer energy storage piece, including antenna mounting piece, second energy storage buffer piece and antenna lifting transmission piece, antenna mounting piece is unfolded and contracted on lifting relay piece by antenna lifting transmission piece transmission.This application structure design is simple, degree of automation is high, continuous lifting state is stable, unfolding and contraction speed is fast, can buffer and energy recovery energy storage to its potential energy and descending kinetic energy, provide auxiliary energy for next antenna unfolding and folding.

The utility model provides a kind of milk warmer with milk powder dissolving function, for heating liquid in container and auxiliary dissolution powder therein, this milk warmer with milk powder dissolving function is equipped with ultrasonic dissolution component and immersion heating component, the ultrasonic dissolution component is used to generate high-frequency vibration and transmit it to the container to assist in dissolving the powder, the immersion heating component has the heating element component and / or temperature sensor capable of being immersed in the liquid in the container, the heating element component is used to directly heat the liquid, and the temperature sensor is used to measure the temperature of the liquid. The utility model effectively solves the technical problems of separation of milk powder dissolution and milk warming function in the prior art, and the device structure is complex, the noise is large and the compatibility is poor caused by the mechanical shaking method to dissolve milk powder, and at the same time, the technical problems of low efficiency and inaccurate liquid heating temperature in the prior art are solved.