17results about How to "Universal applicability" patented technology

The invention relates to a sparse antenna array synthesis method based on neural network intelligent solution, and the method comprises the steps: carrying out the full-wave simulation of an antenna unit according to an array synthesis requirement, obtaining a unit active directional diagram, and constructing a unit active directional diagram database; constructing an initial sample set according to the unit active directional diagram and the array numerical simulation model; randomly dividing the initial sample set into a training set and a verification set, carrying out offline training by utilizing the training set, and carrying out array comprehensive solution on verification set data; judging whether the resolving result meets the arraying requirement or not, if not, adopting a convex optimization algorithm to assist calculation, updating the data set, and retraining; otherwise, outputting the neural network model; and through the model, according to the unit spacing constraint and the active directional diagram, sparse antenna array synthesis is carried out, and array topology is output. The method can achieve the comprehensive settlement of the antenna array, is high in speed, is high in efficiency, and better accords with a real array working environment.

This invention discloses a method for preparing interface-reinforced niobium pentoxide / porous graphene and its energy storage application. The method involves adding porous graphene oxide during the solvothermal synthesis of a niobium pentoxide precursor to obtain a composite precursor of niobium pentoxide and porous graphene oxide. This precursor is then annealed under a protective atmosphere to obtain the interface-reinforced niobium pentoxide / porous graphene composite material. The composite material obtained by this invention exhibits excellent performance as an electrochemical energy storage material. Furthermore, the preparation method of this invention is simple to operate, requires no complex equipment, and is easily controlled, making it suitable for mass production.

The present invention discloses a connecting wire clamp hardware and an operation method thereof, wherein the connecting wire clamp hardware comprises: a hardware body; a first wire clamping clip, which is arranged at one end of the hardware body; a second wire clamping clip, which is movably connected to the hardware body and arranged opposite to the first wire clamping clip; a wire clamping bolt, which passes through the first wire clamping clip and the second wire clamping clip, and one end of the wire clamping bolt with a nut is connected to a mechanical arm; the mechanical arm drives the wire clamping bolt to rotate, so that the second wire clamping clip moves back and forth along the side wall of the hardware body to clamp and tighten the main conductor between the first wire clamping clip and the first wire clamping clip. The present invention can be used in conjunction with the mechanical arm of a live robot to complete the live overlap of the main conductor and the drainage line, greatly improving the safety and work efficiency of non-power-off operations.

The invention discloses a method for manufacturing an intermediate-diameter-reduced external thread based on a standard metric external thread. The method comprises the steps that a finished bolt meeting the standard metric thread standard serves as a standard bolt to be used for manufacturing an intermediate-diameter-reduced bolt; according to the fact that the pitch diameter of the thread is equivalent to the diameter of the thread rolling blank, the diameter d 'P = dP-deltad2 of the thread rolling blank of the bolt with the reduced pitch diameter is obtained through calculation; calculating the difference value delta VP between the volume V1 of the thread rolling blank of the standard bolt and the volume V2 of the thread rolling blank of the reduced pitch-diameter bolt according to # imgabs0 #; the thread cutting depth delta d is calculated according to delta VP = delta V = F (delta d); the thread cutting depth delta d serves as the turning depth, the original thread outer circle of the standard bolt is turned, and a semi-finished product bolt is obtained; and performing thread rolling on the semi-finished product bolt according to the original thread lines on the semi-finished product bolt, and obtaining the bolt with the reduced pitch diameter after surface treatment is completed. The small-pitch-diameter bolt can be manufactured and machined through the finished bolt, the production process is simplified, and the production efficiency is improved.

The present application provides a SNP molecular marker related to wet damage tolerance of Brassica napus and application thereof, wherein the sequence of the SNP molecular marker is shown as SEQ ID No. 1, and an A / G base mutation exists at 11872958 of the sequence shown as SEQ ID No. 1. The SNP molecular marker provided by the present application is based on a competitive allele-specific PCR marker detection method, and is used for detection and identification of the wet damage tolerance trait of Brassica napus. The detection method is simple in operation, low in cost, accurate in detection result, good in repeatability and stability, and different detection laboratories and different data results can be compared and verified with each other, and the data has universal comparability.

A train multiple unit return rescue brake command control system relates to a train multiple unit return rescue brake command control system, which solves the problems that the existing single-tube design brake system multiple unit lacks a complete return rescue brake command control circuit, can only be rescued but cannot rescue other multiple units without speed limit and without cutting off the brake of the rescued multiple unit; the mutual rescue capability between multiple units is limited, and thus the needs of future standardized design of multiple units cannot be met. The invention comprises a return rescue power supply control circuit, a rescued working condition brake command output circuit and a rescue working condition brake command input circuit; the brake command control system is a brake electrical command control system that can cover rescue working conditions and rescued working conditions, so that the braking control of vehicles under rescue and rescued working conditions is safer and more reliable. The return rescue brake command control system of the invention is designed and used on my country's Fuxing multiple unit, and has good actual use effect.

This invention provides a method, apparatus, electronic device, and medium for predicting battery calendar life. The prediction method includes the following steps: constructing a prediction model between combined health factors and a storage independent variable; and numerically fitting the prediction model using experimental data from the storage independent variable and the combined health factors during the storage test, solving for the model parameters in the prediction model, and obtaining a prediction model for battery calendar life. The combined health factors include indirect health factors and direct health factors. This invention selects a combination of direct and indirect health factors for numerical fitting to examine the contribution ratio of each electrochemical parameter in the later capacity loss. The fitting effect is excellent, and the battery life evaluation cycle is greatly shortened, with high prediction accuracy.

The present application provides a system and method for live cell RNA imaging and sensing. The system of the present application comprises: (i) a target recognition module comprising a circular binding RNA, the circular binding RNA comprising at least one target binding sequence configured to form a double-stranded binding region by complementary binding with a sequence on a target RNA; and (ii) a signal module comprising a double-stranded RNA binding protein and a signal element, the double-stranded RNA binding protein being connected to the signal element, wherein the double-stranded RNA binding protein recognizes and binds to the double-stranded binding region. The method of the present application comprises introducing the system into a live cell and performing imaging and detection. The system of the present application has the advantages of non-invasiveness, low fluorescence background and universality.

The invention belongs to the technical field of molecular biology, and discloses a molecular marker combination for identifying wax gourd germplasm resources, the molecular marker combination comprises 48 SNP molecular markers, the physical positions of the 48 SNP molecular markers are determined by sequence alignment based on a wax gourd reference genome GCF009727055.1, and the chromosome positions and base variation of the 48 SNP molecular markers are shown in the specification table 1. The invention further discloses a primer group for detecting the molecular marker combination, the primer group comprises 48 pairs of primers, and the sequence of each pair of primers is shown in the specification table 2. The invention also discloses a kit which comprises the primer group. The invention also discloses applications of the molecular marker combination, the primer group and the kit. According to the molecular marker combination for identifying the wax gourd germplasm resources, 48 SNP markers are screened, and the 48 molecular markers are high in typing quality, single in copy and high in polymorphism.

The utility model discloses a low-temperature ice box capable of containing centrifugal tubes of different specifications, and relates to the technical field of medical instruments. The ice box comprises an ice box body, hole grooves are formed in the top face of the ice box body, a box cover is connected to the upper portion of the ice box body in a clamped mode, a water storage box is connected to the lower portion of the ice box body in an inserted mode, an inner cavity of the water storage box is communicated with an inner cavity of the ice box body, multiple sets of hole grooves are distributed in the transverse direction, and the number of each set of hole grooves is six. The edge of the upper portion of the water storage box protrudes, and therefore the water storage box and the ice box body can be connected in a clamped mode. When the low-temperature ice box is actually used, centrifuge tubes with different specifications can be placed, the low-temperature ice box has universal applicability, the space utilization rate is improved, meanwhile, the requirement that different centrifuge tubes can be used on the same tube rack at the same time is met, the whole low-temperature ice box is efficient and convenient, and the situation that various centrifuge tubes and test tubes are placed on an experiment table disorderly is avoided.

The invention belongs to the technical field of composite membrane materials and environmental pollution treatment, and particularly relates to an iron monatomic catalyst modified composite membrane as well as a preparation method and application thereof. The iron monatomic modified carbon-doped graphite-like carbon nitride catalyst is obtained by forming a precursor through supramolecular self-assembly of citric acid complexed with iron ions and melamine and then performing pyrolysis, and highly dispersed iron monatomic greatly improves the atom utilization rate and reduces the metal dosage. The composite membrane effectively solves the problems that a powder catalyst is difficult to recycle and secondary pollution is easily caused, the prepared composite membrane has self-cleaning regeneration characteristics, and the problem that a traditional filter membrane is easily polluted is solved. The preparation method of the composite membrane is simple in process, low in equipment requirement and suitable for industrial production. The composite membrane disclosed by the invention has wide and efficient removal performance on various organic pollutants in water, is universal in applicability and has great application potential.

The invention relates to the technical field of rock ore testing, in particular to a chemical analysis method for nitratine ore components and application of the chemical analysis method. The method comprises the following steps: preparing a test solution by oscillating and filtering at room temperature; determining the content of nitrate radicals; determining the content of sodium ions; and calculating the content of sodium nitrate: calculating the content of sodium nitrate according to ion coordination. The method solves the problems that in the prior art, a nitratine ore chemical analysis method is tedious in operation, and standardized detection cannot be achieved, can provide a feasible method with a unified standard for nitratine ore detection, and can serve geological prospecting.

The invention discloses an experimental device and method for mineralizing and sealing carbon dioxide by using fly ash slurry, and relates to the technical field of environmental protection, the experimental device comprises a carbon dioxide gas cylinder, an air separation layer and a reaction kettle, the carbon dioxide gas cylinder is connected with the air separation layer through a pipeline, and carbon dioxide gas in the carbon dioxide gas cylinder enters the air separation layer through a pipeline; the carbon dioxide gas enters the reaction kettle through the spacing layer to react with the coal ash slurry; a constant pressure valve and a gas flow meter are arranged on the pipeline; a rotating shaft with blades in the reaction kettle is driven by a motor to operate; and the ultrasonic device, the pressure gauge and the gas concentration test meter are positioned above the reaction kettle. The invention provides a low-cost carbon dioxide mineralization method, the method has general applicability and is very convenient to operate, the reaction efficiency is further improved by innovative steps such as ultrasonic device and blade operation, and a new technical approach is provided for resource utilization of fly ash and carbon dioxide emission reduction measures.

The application discloses a high-flux tube heat exchanger convenient to adjust, and belongs to the technical field of heat exchangers, which comprises a shell, a first tube box and a second tube box, two tube plates are arranged in the shell, a plurality of tube bundles with grooves are arranged on the two tube plates, fixed baffles are further arranged in the shell, movable baffle protection mechanisms are arranged on the side of each fixed baffle, and the tube bundles penetrate through the fixed baffles and the movable baffle protection mechanisms. Through the application, the grooves on the surface of the tube bundles can be cleaned, the grooves can be used for different types of groove structures, have universal applicability, the situation that scale is accumulated in the grooves is effectively avoided, the problem that the tube bundles are locally hardened by scale accumulation is prevented, the thermal resistance barrier caused by the scale layer is eliminated, the fluid flow at the groove position is optimized, compared with the traditional periodical cleaning, the application changes from passive cleaning to active protection, the cleaning period is prolonged, and the maintenance frequency and cost are reduced.

The utility model provides a pre-tensioning method hollow slab beam hinge joint reinforcing steel bar adjusting device, which relates to the technical field of building construction devices, and comprises a lever arm, a pressing structure, a fixed row tooth and a positioning structure, one end of the lever arm is used for being connected with a beam top door-shaped reinforcing steel bar arranged at the top of a beam body through the positioning structure; the fixed row teeth are connected with the lever arm; one end of the downward pressing structure is connected with the fixed row teeth, and the other end of the downward pressing structure is used for being connected with a hinge joint embedded rib arranged between adjacent beam bodies; the downward pressing structure is used for adjusting the connecting position of the downward pressing structure and the fixed row teeth according to the distance between the beam top n-shaped rib and the hinge joint embedded rib. The hinge joint steel bar adjusting device solves the technical problem that in the prior art, hinge joint steel bars of hollow slab beams of different specifications are not generally applicable to adjustment.

The present invention provides a nitrogen-containing heterocyclic compound, the nitrogen-containing heterocyclic compound structural formula is as follows: The synthesis path is as follows: wherein the substituent R is selected from any one of bromine, N,N-dimethylaminophenyl, and p-cyanophenyl. The nitrogen-containing heterocyclic compound can be combined with acrylic resin and polyvinyl pyrrolidone to form a film, and a clear fluorescent image is formed under a 365nm ultraviolet lamp. The nitrogen-containing heterocyclic compound has simple synthesis steps, mild reaction conditions, easy purification, high yield, high solid fluorescence quantum yield, is conducive to industrial production, and has great potential in the field of fluorescent anti-counterfeiting applications.

The application relates to a Hilbert fractal curve-based image convolution method and system, comprising the following steps: 1) performing a padding operation on an input image according to a convolution output size mode, for example, the input size is equal to the output mode, and a padding operation needs to be performed on the input edge; 2) block index and rearrangement: performing image block reading and rearrangement operations on the padded input image according to the index sequence number of the Hilbert fractal; 3) cross-correlation operation: performing convolution cross-correlation operation on the rearranged image block with a step equal to the convolution kernel size; 4) local feature aggregation: performing convolution cross-correlation operation on the output of step 3 with a step of 1 by using a deep separable one-dimensional convolution; 5) restoring the two-dimensional structure of the input: performing reverse rearrangement operation on the output of step 4 according to the index of the Hilbert fractal, and outputting. Compared with the existing image convolution operation method, the application is simple, has strong universality and has certain theoretical advancement.