22results about How to "Enhance the destructive effect" patented technology

The invention relates to a micro-grid intelligent safety secondary voltage control method based on reinforcement learning, and belongs to the technical field of power grids. The method comprises the following steps: firstly, establishing a micro-grid secondary control model under hybrid network attack; a DoS attack defense network based on deep learning is designed, a self-adaptive FDI attack compensation state observer is designed, compensation for unknown FDI attacks is established, a self-adaptive law of compensation signals is designed, and estimation of the system state under network attacks is achieved. An evaluation-execution structure is constructed based on reinforcement learning, a virtual optimal controller and an actual optimal controller are designed in combination with a backstepping method, unknown parts in a system model, an evaluation network and an execution network are approximated by using a neural network, and a weight adjustment law is given. And introducing a log type barrier function into the performance index function, and constraining the output in a fixed constant interval to meet the constraint condition. The method can cope with DoS attacks and FDI attacks, and ensures stable control and safe operation of the secondary voltage of the micro-grid.

The invention discloses a sectional type blade disc pump impeller and an automatic adjusting method thereof, and relates to the technical design field of pumps, the sectional type blade disc pump impeller comprises a front cover plate and a rear cover plate, and a plurality of blades are evenly distributed on the opposite faces of the front cover plate and the rear cover plate in the annular direction; a notch is reserved in the middle of each blade. The device further comprises a driving part. Each blade comprises an inner rod and an outer rod which are located on the same line, and the notches are located between the inner rods and the outer rods. The driving piece is used for respectively or simultaneously driving the outer rod and the inner rod to move at the end part of the notch, and the moving direction is the linear direction of the driving piece so as to change the position and the size of the notch. By the adoption of the scheme, the blades are segmented at the gas phase gathering position in the flow channel, when gaps at the segmentation position sweep over the gas mass at a high speed, gas mass gathering can be effectively cut and damaged, the volume of the gas mass is reduced, and therefore the problem that the flow channel is blocked by the local large-volume gas mass is solved, and gas-liquid two-phase media can be conveyed out of the impeller more evenly.

The utility model relates to the technical field of fabricated buildings, and discloses a beam-column connection node structure for a fabricated building, which comprises a main beam support, a main beam embedded part is fixedly welded at the bottom of the main beam support, and a lower baffle and an upper baffle are fixedly welded on the outer surface of the main beam support. Through the arrangement of the positioning assembly, after the fixing plate and the side plate are assembled together through a bolt, the side plate abuts against the abutting plate, the abutting plate can be driven to slide, the interior of the sealing groove is pressurized, the surface of the positioning block penetrates through the penetrating hole to be inserted into the positioning hole, and an extra force transmission path is added; when a building structure bears a vertical load, force can be effectively transmitted and dispersed through the positioning assembly, stress is prevented from being excessively concentrated on a bolt connecting part, the whole beam-column connecting joint can be stressed cooperatively, the deformation and damage resistance of the whole structure is improved, and a structural system of a fabricated building is more stable and reliable.

The invention discloses an enhanced zero-dynamic attack method for an automatic voltage regulator, which comprehensively analyzes influence factors of zero-dynamic attack destructiveness, and enhances the zero-dynamic attack destructiveness by modifying attack signals and sacrificing certain concealment. A transfer function is used for representing a relation model between an input signal and an output signal of the automatic voltage regulator, destructive influence factors of zero-dynamic attacks are analyzed, a coefficient matrix of attack signals is adjusted, additional items are added, enhanced zero-dynamic attack signals are constructed, and the enhanced zero-dynamic attacks are initiated to the automatic voltage regulator. Compared with the existing zero-dynamic attack method, the enhanced zero-dynamic attack designed by the invention is stronger in destructiveness and wider in selectable attack objects.

The invention is suitable for the technical field of battery safety, and particularly relates to a network safety protection system and method of a power battery and related equipment. The network security protection system is used for carrying out data transmission between the energy storage equipment and the cloud platform. The network security protection system comprises an acquisition control module, a first calculation module, a second calculation module and a communication module. Compared with the prior art, the power battery safety system has the advantages that the scheduling control command is subjected to safety examination through the first calculation module, and a malicious command can be rejected to generate a destructive attack effect when the cloud platform end is controlled by an attacker; however, since the first calculation module and the second calculation module are controlled and separated, the first calculation unit module operates independently, and an attacker cannot influence the first calculation unit module. The first calculation module only checks whether the control operation is destructive in the current environment, does not carry out other operations, and does not interfere with normal management control.

The invention relates to an energy-saving circulating water additive and a preparation method thereof, and belongs to the technical field of water additives. According to the invention, CTAB and stigmasterol are combined, and the silane coupling agent is added, so that the dispersibility and stability of the active component in water are improved. Meanwhile, the carrier part is compounded with alfalfa meal, monocalcium phosphate and other substances through acid-treated activated carbon, so that the adsorption capacity and stability of the additive are further enhanced; according to the preparation method provided by the invention, the active component and the carrier can be fully combined to form a uniformly distributed solid product, and the solid product is applied to a circulating water system, so that the flow velocity of water can be effectively increased.

The invention discloses an external pressure load detection device and method for a resin concrete pipe product, and relates to the technical field of load detection, and the external pressure load detection device comprises a composite mechanism. According to the external pressure load detection equipment and method for the resin concrete pipe product, through the design of a composite mechanism, a pipeline is placed on a rotating column, and a motor drives the rotating column to rotate through a connecting belt, so that the vertical degree of the pipeline and the quality of the pipeline are detected, and when the rotating column rotates, a friction mechanism is pressed downwards to be attached to the pipeline; the friction mechanism is matched with the rotating column in a friction mode, the shaking space of the pipeline is limited, pipeline derailing caused by too high rotating speed is avoided, the working efficiency is improved, when the friction mechanism makes contact with the surface of the pipeline, skin chippings are easily generated, the chip removal effect is enhanced by forming the strip-shaped grooves and slotting, impurity attachment is reduced, the rotating effect is prevented from being influenced by excessive adhesion, and the heat dissipation effect is improved. Local overheating of the structure is avoided, and equipment performance is prevented from being affected.

The present invention discloses a blasting method and a charging device and an explosive bag structure for reducing damage to pipe shed support, belonging to the technical field of tunnel blasting construction, including: setting a pre-splitting zone near the bottom of the pipe shed on the face, setting a plurality of blastholes on the pre-splitting zone, and detonating the explosives after filling the blastholes with explosives; then setting a plurality of blastholes near the bottom of the pre-splitting zone on the face, and detonating the explosives after filling the blastholes with explosives; then setting a plurality of blastholes on the blasting surface between the middle of the face and the bottom of the pre-splitting zone, and detonating the explosives after filling the blastholes with explosives; then setting a plurality of blastholes near the bottom of the face below the middle of the face, and detonating the explosives after filling the blastholes with explosives. This scheme adopts the scheme of pre-splitting and polishing blasting, and can perform pre-splitting blasting below the pipe shed before slotting blasting to form pre-cracks, reduce the propagation of slotting blasting vibration, and thus reduce damage to the pipe shed.

The utility model relates to the field of material sorting, in particular to a push plate, a sorting device and a sorter, the push plate is applied to the sorting device, the push plate is integrally formed through casting, and the push plate comprises a bottom plate, the front face of the bottom plate is used for striking materials to be sorted; the bearing seat is arranged at one end of the bottom plate and is used for mounting a bearing; the rib plate is arranged on the back face of the bottom plate and extends towards the back side in the direction perpendicular to the bottom plate, and one end of the rib plate is connected with the bearing seat. And the lug seat is arranged at one end, far away from the bottom plate, of the rib plate, protrudes out of the rib plate, forms a through hole in the center, and is used for being connected with a driving mechanism for driving the push plate to swing along the bearing. The push plate is integrally formed through casting, the problem that the welding position is prone to cracking due to welding and assembling of a plurality of sub-parts is solved, the overall structure is more stable, and the push plate can bear high-frequency and strong-impact contact of ore and large impact force generated when heavy materials are pushed away.

The invention provides a preparation process of a long-acting composite disinfectant for a livestock farm, and belongs to the technical field of disinfectant preparation. The preparation process comprises the following steps: preparing dihydrodemethyleneberberine; preparation of titanium dioxide-dihydrodemethyleneberberine at calcium phosphate; preparing a composite antibacterial nano emulsion; preparing an organosilicon quaternary ammonium salt antibacterial agent; and preparing the composite disinfectant. The composite disinfectant prepared by compounding the titanium dioxide-dihydrodemethyleneberberine calcium phosphate, the composite antibacterial nano-emulsion and the organosilicon quaternary ammonium salt antibacterial agent does not contain mercury and contains arsenic; therefore, the composite disinfectant overcomes the defect of short-term effect, reduces the risk of drug resistance, and also gives consideration to environmental protection and biological safety.

This invention discloses the application of an electrode material for reducing intracellular resistance genes in drug-resistant bacteria. A platinum-doped dendritic TiO2 nanowire structure based on a three-dimensional material is formed by growing a micron-sized TiO2 backbone array and platinum-doped nano-sized TiO2 branches on the surface of a porous electrode. The prepared dendritic nanowire three-dimensional electrode material has a larger specific surface area, providing more reactive sites and strong electric field sites. Platinum doping enhances the conductivity and electrocatalytic performance of the nanowires. Furthermore, by combining it with chloride salts / oxidants, the electroporation and electrocatalysis of the nanowire electrode surface are coupled. The strong electric field confined at the nanowire tip induces perforation of the drug-resistant bacterial cell structure, strengthening the contact and reaction between the oxidant and the resistance gene. The high electrocatalytic activity confined at the nanowire tip induces the generation of strong oxidizing free radicals, achieving the goal of destroying the drug-resistant bacterial cell structure and efficiently reducing intracellular resistance genes.

The invention relates to an etching process of an ultrathin metal cooling fin, and belongs to the technical field of etching processes. The invention discloses an etching process of an ultrathin metal radiating fin, which specifically comprises the following steps: (1) grinding a millimeter-level metal sheet, then polishing by using a nano aluminum oxide suspension machine, and cleaning by using deionized water; (2) soaking in a protective agent, taking out and airing to obtain the pretreated ultrathin metal radiating fin; (3) a mask material is attached to one face of the pretreated ultrathin metal cooling fin, the other face of the pretreated ultrathin metal cooling fin is completely sealed with an adhesive tape, and then the pretreated ultrathin metal cooling fin is placed in electrolyte; and (4) taking the pretreated ultrathin metal radiating fin as a working electrode, taking an inert material as an auxiliary electrode, and finishing the whole process after electrifying. Through the step of pretreating the ultrathin metal cooling fin, the surface of the cooling fin is cleaned, meanwhile, the protective film formed on the metal surface by the protective agent prevents secondary pollution, the uniformity of the etching depth is ensured in the electrolysis process, and the phenomenon that the cooling fin is perforated is avoided.

The invention relates to a preparation method of a barium strontium sulfate scale remover, which comprises the following steps: adding a prepared additive solution into a prepared chelating agent alkaline solution, fully mixing and dissolving, and adjusting the pH value to be alkaline to obtain the barium strontium sulfate scale remover. Compared with the prior art, the preparation method has the following beneficial effects that the damage effect of the descaling agent on barium strontium sulfate scale can be remarkably improved, the contact area with metal ions is increased, so that the overall descaling effect is improved, formation of the barium strontium sulfate scale is effectively damaged, the descaling agent still keeps a stable descaling effect in a high-temperature environment, and the service life of the descaling agent is prolonged. The method has a wide industrial application prospect. The used chelating agent not only has a good metal ion chelation effect, can effectively complex ions such as barium and strontium and destroy generation of barium sulfate and strontium sulfate crystals, but also has the characteristics of being still stable at high temperature and high pH value, suitable for complex industrial conditions, excellent in performance in neutral and alkaline water and the like, and is more environmentally friendly.

This invention discloses a low-temperature polyether demulsifier for oil and gas gathering and transportation and its preparation method, relating to the field of petrochemical technology. The key technical points include: using cashew nut shell powder, pentaethylene hexamine, and bisphenol F in a specific molar ratio as an initiator, and preparing a composite initiator via formaldehyde condensation; incorporating propylene oxide and ethylene oxide through staged block copolymerization to form a polyether backbone; introducing fluorinated epoxy monomers for end-fluorination modification; and finally, performing chain extension and crosslinking with adipic acid and epichlorohydrin to obtain a demulsifier with a molecular weight of 8000~12000 Da, a fluorine content of 5.5~6.5 wt%, and a PDI ≤ 1.3. The effect is that through the synergistic effect of the composite initiator, the superhydrophobic penetration of the fluorinated block, and precise molecular weight control, efficient demulsification at low temperatures is achieved, improving demulsification efficiency and reducing dosage, solving the problems of low-temperature failure and easy emulsification of traditional demulsifiers, and adapting to the low-temperature operating conditions of oil and gas gathering and transportation.

This invention provides a method, apparatus, device, and medium for robustness enhancement of an image classification model. It relates to the field of image processing technology. The method includes: applying a perturbation to the original image to generate a perturbation map; inputting the perturbation map into the model to be enhanced to obtain attention heatmaps and classification results; constructing consistent and inconsistent sample sets based on the consistency of the classification results; calculating attention shifts based on heatmap differences, calculating prediction consistency based on classification results, and calculating feature distribution differences based on the distance between the two sample sets; weighted summing the three to construct a comprehensive robustness fitness index; optimizing the optimal perturbation parameter combination with the goal of maximizing this index; performing directional perturbation on the original image to generate an enhanced image, which is then used to train the model to be enhanced, ultimately obtaining a robustly enhanced image classification model.

The application discloses a deep-cone thickener for concentrating mine tailings slurry and relates to the technical field of mine equipment. The top surface of the conical barrel is fixedly connected with a bridge, the top surface of the bridge is fixedly connected with a speed reducer, the output end of the speed reducer is transmissionally connected with a transmission shaft which is coincident with the axis of the conical barrel, the side surface of the transmission shaft is fixedly connected with multiple groups of cross frames, one end of the cross frame close to the inner wall of the conical barrel is fixedly connected with a mounting seat, and the adjacent two mounting seats which are vertically arranged are rotationally installed with a roller between them. In the application, when the transmission shaft drives the rake frame to slowly rotate, the roller which is tangent to the inner wall of the conical barrel makes the rotation of the rake frame more stable, and the concentricity of the rake frame and the transmission shaft is ensured; in addition, the rotation of the roller makes the rotating disc which is rotationally installed in the inner part of the guide plate reciprocatingly rotate through the cam, so that the contact surface between the floc attached to the guide plate and the rotating disc is damaged, and the floc is separated from the two guide plates.

The application relates to the technical field of signal gain modules, and discloses an L-band wideband signal gain module, which comprises a shell, a shell cover and a circuit board, the bottom of the shell cover is provided with a separation rib for separating the inner cavity of the shell, the circuit board is provided with a grounding copper foil, the grounding copper foil is directly below the separation rib, the bottom of the separation rib is provided with a plurality of through holes, and a probe assembly is arranged in each of the through holes. The convex points on the separation rib are replaced by the probe assemblies, the contact pressure of the movable probe and the grounding copper foil is converted into the brightness of LED lamp beads, the contact state of the movable probe and the grounding copper foil can be quickly detected by maintenance personnel, when the movable probe is in poor contact, the regulating structure is started, the screw is rotated, the movable probe is moved towards the grounding copper foil, the movable probe is restored to contact, the detection process and the adjusting process are simple and fast, the cover does not need to be disassembled and replaced, power supply does not need to be cut off, the work of the equipment is not affected, and the operation and maintenance cost is reduced.

The invention relates to the technical field of plant extraction, in particular to a plant protein peptide fermentation product and a preparation method and application thereof. The preparation method comprises the following steps: treating the plants; preparing vegetable protein nanoparticles; activating the strain; and preparing the vegetable protein peptide fermentation product. Glycyrrhiza uralensis, momordica grosvenori, purslane, wolfberry, citron, rose and reed rhizome are mixed and then crushed twice, the first crushing is to release saponin in the glycyrrhiza uralensis through physical extrusion, the saponin has the effect of a surfactant, then a NaCl solution is added, the saponin and the NaCl solution are combined, osmotic pressure inside and outside plant cell walls is firstly pressurized, the osmotic pressure inside and outside the plant cell walls is increased, the osmotic pressure inside and outside the plant cell walls is increased, and the osmotic pressure inside and outside the plant cell walls is increased; the plant cell wall toughness is reduced, the saponin can destroy the plant cell wall, and the combination of the plant cell wall toughness and the saponin improves the destructiveness on the plant cell wall, thereby promoting the release of protein in the plant cell, and improving the extraction efficiency of plant protein and the yield of the plant protein peptide fermentation product.

The invention discloses a medicinal peptide and a preparation method thereof, and belongs to the technical field of medicinal peptides. The medicine peptide is prepared from the following raw materials in parts by weight: 15 to 25 parts of radix scutellariae, 10 to 20 parts of herba andrographitis, 10 to 15 parts of gallnut, 5 to 10 parts of honeysuckle flower, 4 to 8 parts of liquorice root, 2 to 6 parts of medicated leaven, 2 to 4 parts of radix ginseng rubra, 5 to 10 parts of radix pulsatillae and 8 to 12 parts of rhizoma dioscoreae. Lactobacillus bulgaricus, lactobacillus rhamnosus and bifidobacterium longum are adopted to ferment the traditional Chinese medicine components, so that nutritional ingredients and active ingredients in the traditional Chinese medicine components can be fully released, and absorption and utilization of the active ingredients in the traditional Chinese medicine components are facilitated. The prepared medical peptide can effectively stimulate local blood circulation, promote metabolism and relieve discomfort symptoms such as pain and muscle stiffness; local and overall immunity is promoted, and body resistance is improved.

The application discloses a sawtooth piece, a sawtooth balloon and a sawtooth piece manufacturing method, and belongs to the technical field of medical devices.The sawtooth piece comprises a strip capable of being bonded to the outer surface of the balloon through a glue layer, the strip is provided with sawteeth arranged at intervals along the length direction of the strip, the end side area of the strip is provided with a bonding reinforced end head, and the bonding reinforced end head is provided with an embedding groove for embedding the glue layer.The sawtooth balloon comprises a balloon and a sawtooth piece, the length direction of the strip of the sawtooth piece is arranged along the axial direction of the balloon, the strip is connected with the balloon through a connecting structure, and the connecting structure at least comprises a glue layer.The sawtooth piece manufacturing method comprises the following steps: performing plastic processing on the end side area of the strip with sawteeth to form a bonding reinforced end head with an embedding groove, and the embedding groove is used for embedding the glue layer on the outer surface of the balloon.The main failure mode of the sawtooth piece, i.e., end lifting, can be effectively avoided, thereby avoiding the problem of the overall falling of the whole sawtooth piece.

The invention discloses a ruthenium polypyridine complex with a multi-ring and quaternary ammonium salt structure as well as a preparation method and application of the ruthenium polypyridine complex. The ruthenium polypyridine complex with the multi-element ring and quaternary ammonium salt structure contains metal ions, has positive charges after being coordinated with dipyridyl with different substituent groups, and can be combined with negative ions on the surface of a bacterial cell membrane to destroy the bacterial cell membrane, so that bacterial growth is inhibited, and bacteria are finally killed. The staphylococcus aureus can generate a multi-layer biological membrane embedded into a cell envelope layer and a mucus layer, and expresses protein with heterogeneity in the whole process, so that permeation of drugs is hindered, the opportunity of host immune escape is increased, bacteria are helped to resist the environment and cause persistent infection, and inhibition of the formation of the biological membrane is the key point of antibacterial medicine technology research. According to the invention, a carbon chain structure, a multi-heterocyclic structure and a quaternary ammonium salt structure are introduced to the ruthenium polypyridine ligand, and the capability of destroying bacterial cell membranes is enhanced through the action of different groups, so that the effect of improving biological activity is achieved.

The present invention relates to the technical field of diagnosis and treatment of traditional Chinese medicine, and discloses a prescription shredder, comprising: a supporting and receiving mechanism, a handwriting erasing mechanism is arranged inside the supporting and receiving mechanism, a paper pushing mechanism is arranged at the front end of the handwriting erasing mechanism, a paper cutting mechanism is arranged at the rear end of the handwriting erasing mechanism, and a pulling mechanism is arranged at the rear end of the paper cutting mechanism. The prescription shredder, through the supporting and receiving mechanism, the handwriting erasing mechanism, the paper pushing mechanism, the paper cutting mechanism and the pulling mechanism, can heat the prescription to yellow during use, blur the handwriting on the surface of the prescription, and then shred and destroy it, thereby improving the information destruction effect, thereby avoiding the leakage of prescription information and reducing the probability of medical accidents.