178results about How to "Maintain stability" patented technology

The utility model relates to the technical field of ocean foundation protection, specifically relates to a scour protection device of ocean pile foundation, including cylinder and protection subassembly, and protection subassembly includes protection cylinder, buffer component, connecting rod, deflector, ring plate and fixed anchor, the protection cylinder is set in the outside of cylinder before installing cylinder, when installing cylinder on the bottom of sea placement surface, the fixed anchor on ring plate is buried in placement surface simultaneously, the protection cylinder is connected with ring plate through connecting rod and is strengthened fixed, and the connecting rod circular array is 6, and the section between every connecting rod and protection cylinder and ring plate forms triangle, makes the device have stability, and the deflector is used for water flow guiding, avoids that water flow directly washes cylinder and installs placement surface, and connecting rod, ring plate and protection cylinder adopt integrated pouring forming process.

An intelligent compensation method for coupling errors of a dynamic gravimeter comprises the following steps: selecting typical environment interference influencing the dynamic gravimeter in a complex measurement environment, and analyzing an influence mechanism of each typical environment interference on the measurement accuracy of the dynamic gravimeter; according to the influence mechanism under each typical environment interference, analyzing a coupling error influence mechanism between the typical environment interferences; based on the coupling error influence mechanism, constructing a coupling error comprehensive compensation model; adding the coupling effect loss into a data-driven loss function, and defining a model coefficient constrained by physical information; and performing model training by using the training data, and calculating the total loss of the verification set on the obtained model to obtain a final coupling error comprehensive compensation model. According to the invention, the coupling error of the dynamic gravimeter in a complex environment is compensated based on coupling error mechanism analysis and a physical constraint long-short-term memory model, and the measurement precision and environmental adaptability of the dynamic gravimeter under complex multi-factor interference conditions are improved.

The utility model discloses a kind of device for separating and purifying cosmetic functional raw materials using affinity chromatography technology, it is related to chromatography column field, including fixed plate, chromatography column, heat preservation shell and connecting assembly, chromatography column is by effluent bucket, glass shell and top cover composition, fixed plate fixedly sets in effluent bucket outer wall, effluent bucket and top cover are with glass shell and are formed sealed cavity by thread connection, heat preservation shell is clamped by two half shells and is wrapped in chromatography column outer wall, connecting assembly is installed in fixed plate lower surface, connecting assembly is used for the fixation and separation of two half shells, the utility model is split by heat preservation shell, so that scale can be completely removed in cleaning process, improve heat transfer efficiency, ensure the uniformity of chromatography column internal temperature distribution, conducive to maintaining the stability and separation effect of chromatographic process.

The utility model discloses an external wall thermal insulation coating stirring device, which relates to the technical field of stirring devices, and comprises a containing barrel, a barrel cover and a stirring rod, the barrel cover is arranged above the containing barrel, the inner wall of a frame is connected with a baffle in a sliding manner, the inner wall of the frame is also connected with a hopper in an inserting manner, a cover plate is hinged above the hopper, and the cover plate is connected with the stirring rod in a sliding manner. The material packaging bag cutting device is reasonable in design structure, through cooperation of the frame, the hopper, the cutting knife and the cover plate, the cutting knife moves to cut a material packaging bag, after the material packaging bag is cut open, materials are filled into the containing barrel through the hopper and the frame, the containing barrel is filled with the materials, and therefore the packaging bag can be cut conveniently. The whole bag of materials is wrapped inside through the hopper and the cover plate, outward splashing of the materials is reduced, when the materials are stirred, the frame is closed through the baffle, outward splashing of the materials during stirring is reduced, and damage to constructors during stirring of the external wall heat preservation coating is reduced.

The utility model discloses a naphthalene water reducer neutralization reaction device capable of automatically adding alkali, and belongs to the technical field of water reducer production equipment. The naphthalene water reducer neutralization reaction device with the automatic alkali adding function comprises a reaction tank, a tank cover is installed at the top end of the reaction tank, four supporting columns are installed on the outer side of the bottom end of the reaction tank, a cooling mechanism is installed on the outer side of the reaction tank, an alkali liquor tank is arranged on one side of the reaction tank, a ring pipe is installed on the inner side of the reaction tank, and a plurality of alkali liquor spray heads are installed at the bottom end of the ring pipe. The top end of the alkali liquor tank is provided with a liquor feeding mechanism for supplying liquor to the annular pipe, the top end of the annular pipe is provided with a cleaning mechanism for cleaning the alkali liquor spray head, the reaction tank is internally provided with a mixing mechanism, the bottom end of the reaction tank is provided with a liquor outlet pipe, and one end of the liquor outlet pipe is provided with a valve. The neutralization reaction efficiency is improved, and the practical value is relatively high.

The utility model discloses a filter device of circulating backwash, including filter casing, install a set of bearing seat in the inner chamber of filter casing upper end, bearing seat is sealed with a set of filter core rotation connection, and the rotation action can be realized to filter core through drive assembly, and cooperate transmission assembly and drive cleaning brush rotation, the utility model centrifugal force throws out high -speed water flow, and the impact force of impurity is greatly promoted, and the mechanical cleaning of cooperation cleaning brush, under double effect, can more efficiently remove strong viscosity, firmly attached contaminant and deep pore small impurity, and backwash efficiency improves obviously, and high -efficient backwash reduces backwash frequency and time, and water flow energy consumption is reduced, simultaneously, the filter core is because clean thoroughly, and the service life is extended, and the frequency of replacement is reduced, and the overall operation cost is reduced.

The invention relates to the field of food, and particularly discloses a kudzuvine root, rape pollen and bean composition and a preparation method thereof, and the kudzuvine root, rape pollen and bean composition comprises the following raw materials in parts by weight: 40-60 parts of rape pollen, 20-40 parts of kudzuvine root powder, 1-10 parts of rhizoma polygonati powder, 1-10 parts of smoked plum powder, 1-10 parts of Chinese yam powder and 1-10 parts of maltodextrin. The preparation method comprises the following steps: S1, preparing materials, namely crushing and sieving the raw materials, and weighing the prepared materials; and S2, mixing the raw materials, granulating, drying, tabletting, and packaging to obtain the kudzuvine root, rape and pollen bean composition. The pollen nutritional supplement has the characteristic that the functionality and the absorptivity of the pollen nutritional supplement can be enhanced.

The utility model relates to the technical field of waterproof construction, and discloses a multifunctional waterproof corner processing device which comprises a supporting rod and a fillet scraping head, the surface of the supporting rod is connected with a rod sleeve in a sliding mode, an anti-skid pad is fixedly arranged on the top of the rod sleeve, a limiting assembly for limiting the rod sleeve is arranged on one side of the rod sleeve, and the fillet scraping head is arranged on the other side of the rod sleeve. The bottom end of the supporting rod is in threaded connection with a ball head, the surface of the ball head is sleeved with a damping sleeve, a square pipe is fixedly arranged at the bottom end of the damping sleeve, and the square pipe is connected with a fillet scraping head in a clamped mode. The rod sleeve is slidably connected with the supporting rod, the telescopic length of the fillet scraping head can be adjusted, the rod sleeve can be limited through the limiting assembly, the stability of the rod sleeve can be kept after the rod sleeve is adjusted, rotation damping can be provided for the ball head through the damping sleeve, and the fillet scraping head can be rotated and stopped to any angle; and the fillet scraping head can be conveniently placed in a gap between a water pipe and a wall surface.

This utility model relates to the field of wind turbine technology, and the technical problem it aims to solve is the insufficient fatigue strength. To address this problem, this utility model provides a blade main beam and a wind turbine blade. The utility model includes: an upper blade main beam comprising multiple spliced ​​upper sub-beams; the upper sub-beam includes a C-shaped connecting body and two connecting lugs; the connecting lugs are formed by bending outwards from the end of the connecting body; a lower blade main beam comprising multiple spliced ​​lower sub-beams; the upper and lower blade main beams are joined vertically, and their connecting lugs are fixedly connected; a strength-equalizing connection assembly comprising a C-shaped strength-equalizing connection part and a connecting plate; the connecting plate is connected to the opening of the strength-equalizing connection part; at the splicing position, the strength-equalizing connection assembly is inserted into the interior of the connecting body, and the top wall of the strength-equalizing connection part is fixedly connected to the top wall of the connecting body. The fatigue strength of the blade of this utility model meets the requirements.

The hammock adjusting structure is convenient and stable to install, simple in adjusting mode and safe, and comprises binding ropes connected between the two ends of a hammock and external fixing points, the binding ropes are flat high-strength rope belts, and hanging sections and fixing sections are formed on the binding ropes; the hanging section is used for hanging a hammock, and after the end of the binding rope located on the hanging section is folded and sewn at intervals through a plurality of sutures, a lock catch ring, a plurality of hanging holes and a hanging ring are sequentially formed from inside to outside. The lock catch ring is located at the junction of the hanging section and the fixing section, and the three lock catches are arranged in the lock catch ring in a penetrating mode side by side. The fixing section is a single-layer binding rope, the end, located on the fixing section, of the binding rope is a fixing end, the fixing end is provided with three lock catches in a penetrating mode to form a fixing sleeve capable of being tightened and adjusted in a one-way mode, and the fixing sleeve is fixedly connected with an external fixing point.

The invention discloses a micro-grid optimization scheduling method containing interface solar steam power generation and wave energy power generation. The method comprises the following steps: establishing an interface solar steam power generation device discretization model and a wave energy power generation fitting model; with electrical load, hydrogen demand and water demand as the core, electric energy storage and hydrogen storage are considered in a combined manner, and a micro-grid optimization model containing interface solar steam power generation and wave power generation is established; establishing constraint conditions of the micro-grid optimization model; performing simulation calculation in different scenes; and testing the system stability under extreme working conditions. According to the scheduling method, the dual dilemma of energy shortage and fresh water shortage in the island region can be solved, the dependence on traditional energy can be reduced, the energy transportation cost and the environmental risk are reduced, and the energy utilization efficiency and the environmental friendliness are improved.

The utility model relates to a kind of steam treatment device and electric water heater, belong to water heater field, steam treatment device includes: water storage tank body, water storage tank body is equipped with water storage cavity, water storage tank body is equipped with the water tank water replenishing port being communicated with water storage cavity;Steam treatment component, steam treatment component is set on water storage tank body, steam treatment component is equipped with condensing space, condensing space is communicated with water storage cavity, steam treatment component is equipped with the first output port being communicated with condensing space;Backflow structure, backflow structure is connected with steam treatment component and water storage tank body respectively, backflow structure is communicated with the first output port, backflow structure is communicated with the water tank water replenishing port.This application discloses steam treatment device can effectively liquefy the steam generated by water storage cavity by the condensing space of steam treatment component setting, liquid water after condensation is re-delivered to the water tank water replenishing port by the first output port of backflow structure, can avoid the waste of water resources caused by steam direct discharge, realize the recycling of water resources.

The invention provides a fluorescent quantitative PCR (polymerase chain reaction) detection primer, a kit and a method for a novel variable chalmavirus VP gene, and belongs to the technical field of virus detection. A specific primer is designed and synthesized according to a conserved sequence of a VP gene of the novel variant chalmavirus, a recombinant plasmid is constructed, then the recombinant plasmid is used as a standard substance to establish a standard curve, a real-time fluorescent quantitative PCR detection system aiming at the novel variant chalmavirus is constructed, and specific detection of the novel variant chalmavirus is realized. The detection method can be used for quantitatively detecting the novel variant chalmavirus in the to-be-detected sample, and has the characteristics of high speed, high sensitivity, strong specificity and the like; the method provides a key technical support for molecular epidemiological investigation of the Sepamavirus in animal populations, is helpful for realizing early screening of infected individuals and timely blocking of virus transmission, and has important practical significance for guaranteeing population health and maintaining high mountain ecosystem stability.

This invention discloses a specific molecular marker for identifying eggplant Saet CMS cytoplasmic male sterility lines and its application. The molecular marker, Saet218b, was selected by comparing the mitochondrial genomes of the eggplant Saet CMS cytoplasmic male sterility line and its maintainer line. Through bioinformatics analysis, the candidate specific gene for Saet CMS male sterility, orf218b, was obtained, and its nucleotide sequence is shown in SEQ ID NO: 1. Based on this sequence information, the molecular marker Saet218b for identifying eggplant Saet CMS cytoplasmic male sterility lines was successfully designed. The molecular marker of this invention can be used to identify eggplant Saet CMS cytoplasmic male sterility lines efficiently and with a simple procedure. The results can be used for marker-assisted breeding of eggplant Saet-derived cytoplasmic male sterility lines, improving breeding efficiency. It also provides technical support and theoretical basis for the identification of eggplant specific cytoplasmic germplasm.

The application discloses a tungsten alloy production scheduling decision method and system based on full-process data perception, relates to the technical field of tungsten alloy production scheduling, and specifically comprises the following steps: in the case that the state is rewritten and the original state is not inherited around the fracture position, a constraint embedding mapping sequence based on state order is constructed in a multi-dimensional state identification sequence, a process identification before the fracture position is embedded into an identification section after the fracture position in time sequence, and a mapping correspondence across the identification sections is established, so that a continuous full-process data perception state is formed. The application solves the problem that the full-process data perception state is fractured and scheduling decision cannot be accurately performed due to the state rewriting of batches before process switching and the non-inheritance of the original state in the tungsten alloy production process, realizes the reconstruction and continuous expression of the fractured state, and accurately deduces the execution sequence and dynamically adjusts the scheduling sequence based on the continuous state, so that the continuity and accuracy of production scheduling are improved.

The invention discloses a preparation method of a water-permeable material for a water-permeable tree surrounding brick, belongs to the technical field of preparation of water-permeable brick materials, and aims to solve the technical problem that the mechanical property and durability of the water-permeable tree surrounding brick prepared from the water-permeable material in the prior art need to be further improved. The zwitterionic grafted porous silicon-aluminum dispersion, the magnesium-silicon gel composite magnesium carbonate dispersion and the ettringite composite hydroxyapatite whisker are introduced in the preparation process, and a continuous cementation structure, an interface transition structure and a space constraint support structure are cooperatively constructed on different structural scales; a stable and matched composite system is formed among the cementing phase, the aggregate and the pore structure, and the coordination and stability of the whole structure of the water-permeable tree surrounding brick are effectively maintained through the synergistic configuration of the multiple components in the system, so that the structure integrity and the use reliability are considered while the material meets the water-permeable requirement; the method is suitable for the field of garden and municipal permeable pavement.

The invention provides a foundation pit inclinometer depth positioning method based on magnetic field feature matching, and relates to the technical field of foundation pit horizontal displacement monitoring, and the method comprises the steps: controlling an inclinometer to move in an inclinometer pipe, and synchronously collecting IMU data, three-axis magnetic field data and odometer data which are marked at unified time; fusing the IMU data and the odometer data by adopting a filtering algorithm to obtain a motion state estimation sequence of the inclinometer; performing spatial resampling on the three-axis magnetic field data based on the odometer data, converting the three-axis magnetic field data into a magnetic field feature sequence distributed along the mileage direction, and matching the magnetic field feature sequence with a pre-constructed background magnetic field feature database to obtain a matched mileage value; and associating the motion state estimation sequence of the inclinometer with the matched mileage value, recalibrating the accurate depth coordinate of each deformation point of the inclinometer by taking the matched mileage value as a unified depth reference, and calculating the deformation quantity of the same depth position in different periods.

The application relates to a post-poured belt support frame body structure and a construction method, and belongs to the technical field of post-poured belt construction. The post-poured belt support frame body structure comprises three vertical pipes and a horizontal rod. The three vertical pipes are arranged alternately, and any two vertical pipes are connected through the horizontal rod. The horizontal rod comprises two rod bodies and an adjusting assembly for adjusting the distance between the two rod bodies. The adjusting assembly is located between the two rod bodies. The ends of the two rod bodies away from the adjusting assembly are connected with different vertical pipes. The two ends of each vertical pipe are provided with a support plate which is attached to a top plate or the ground. The post-poured belt support frame body structure has the effect of reducing the cost of turnover materials while not affecting the construction quality of the post-poured belt.

The application discloses a shock-absorbing type culvert with animal migration and water discharge composite functions, and belongs to the technical field of animal passageways, which comprises a square culvert, shock-absorbing structures are arranged on the left side, the right side and the upper side outside of the culvert, the shock-absorbing structures relieve the vibration caused by vehicle driving, reduce the noise size in the culvert and prevent animals from being frightened. A composite light-emitting coating structure is arranged on the inside of the upper side of the culvert, the composite light-emitting coating structure weakens the light difference in the daytime and plays the night light performance at night, thereby providing guidance for animal migration. Drainage structures are arranged on the lower sides of the culvert, the drainage structures prevent the culvert from being washed away, animal passageways are arranged at the middle positions, outer extension plates are further arranged at the entrances and exits of the culvert, organic soil layers and water storage layers are arranged in the animal passageways, the outer extension plates and the organic soil layers and the water storage layers form a boat-shaped structure, water bodies are stored in the boat-shaped structure, the boat-shaped structure is beneficial to relieving the shortage of water resources in arid and semi-arid areas, the culvert is filled by plant growth, the culvert is closer to nature, the wariness of migratory animals to the culvert is reduced, and the ecological improvement effect is achieved.

The utility model discloses an oil separator of a water-cooling screw unit, which relates to the technical field of oil separators and comprises a barrel, an oil return pipe and an air inlet pipe are fixedly mounted at the lower end of the side surface of the barrel, a separation unit and a detection unit are fixedly mounted inside the barrel, the upper end of the barrel is connected with an end cover through bolts, and an exhaust pipe is fixedly mounted on the end cover. The oil-gas separation device has the beneficial effects that the rotating spiral filter screen drives an oil-gas mixture to rotate, so that oil is centrifugally separated, the oil capturing and separating efficiency and quality are improved through the spiral filter screen, the filter screen and the oil-gas mixture are cooled through a cold air conveying assembly, a gas guide cavity and a heat exchange pipe, condensation and separation of the oil are accelerated, and the oil-gas separation efficiency is improved. Through a multi-element cooperation mode of centrifugal separation and cooling capture, the oil-liquid separation efficiency and quality are effectively improved, a filter screen firstly separates most of oil liquid, the separation pressure and the blocking risk of a subsequent filter element mechanism are reduced, and the service life and the replacement period of the filter element mechanism are greatly prolonged.

The invention discloses a sludge age self-adaptive regulation and control method and system based on dissolved oxygen trend recognition. Aiming at the problem of impact response lag caused by difficulty in COD on-line measurement, the method comprises the following steps: under the condition of stable water inlet and aeration, filtering and sliding window feature extraction are performed on an on-line DO signal to obtain a regression slope representing the change of DO along with time, and COD rising impact is reliably identified in combination with an ORP persistence criterion. A mechanism and machine learning fusion model is adopted to determine an identification threshold value and a target sludge age SRT, the sludge discharge amount is rapidly adjusted after impact triggering, the treatment capacity is synchronously matched, and aeration is used for assisting in maintaining DO stable. The system integrates an online monitoring module, a DO recognizable interval judgment module, a feature calculation module, a load recognition module, an SRT decision module and a sludge discharge execution module. According to the method, rapid impact recognition and closed-loop regulation and control can be realized without an online COD instrument, and the impact resistance and the operation stability of the process are remarkably improved.

The utility model relates to the related technical field of spiral welded pipe production auxiliary equipment, and one embodiment of the utility model provides a welding wire feeding frame for spiral welded pipe production, the welding wire feeding frame comprises a bottom plate and a bottom frame, the bottom frame is fixed on the surface of the bottom plate, a winding roller is arranged on the bottom frame, a clamping mounting assembly is arranged in the bottom frame, and vertical frames are fixed on the surface of the bottom plate; the tightening assembly is arranged on the vertical frame and comprises a pair of grooves, the grooves are formed in the two ends of the top of the bottom frame, a plurality of rolling wheels are rotationally connected into the grooves, and the winding roller is placed on the rolling wheels. By means of the technical scheme, the technical problems that in the prior art, a welding wire feeding frame is poor in flexibility, and the height of a winding roller cannot be adjusted are solved.

This utility model relates to the field of gear technology and discloses a gear assembly with adjustable gear meshing distance. The gear assembly includes a mounting platform, a mounting seat on the outer side of the mounting platform, a motor fixedly mounted on the inner wall of the mounting seat, and a main gear fixedly connected to the output end of the motor via a round rod. A driven gear is located on the outer side of the main gear. An adjustment mechanism and a facilitating mechanism are also located on the outer side of the mounting platform. In this gear assembly, adjusting the worm gear causes the worm wheel to rotate, which in turn causes the lead screw to rotate, moving the mounting seat horizontally and thus moving the main gear. This adjusts the distance between the main gear and the driven gear. The self-locking characteristic of the worm wheel and worm gear ensures the stability of the mounting seat. The sliding block and sliding groove further stabilize the mounting seat, ensuring the stability of the distance between the main gear and the driven gear after adjustment.

The invention belongs to the technical field of tunnel engineering, and particularly relates to a tunnel blasting scheme design method and system based on a database technology. According to the scheme, a hybrid architecture historical blasting case database comprising structured data and spatial data is constructed, and a progressive retrieval engine and a scheme generation algorithm are combined; the innovation of tunnel blasting design from experience dependence to data driving is realized; according to the scheme, structural features such as blasting parameters and geologic features are deeply fused with spatial features, a proposed progressive retrieval engine is combined, the spatial query efficiency is effectively improved, meanwhile, the matching degree of a reference case and an actual scene is improved, and meanwhile, the matching efficiency of the reference case and the actual scene is improved. According to the scheme, a tunnel blasting scheme generation normal form integrating benchmark maintenance, parameter optimization and expert verification is provided, so that the accuracy of the generation scheme is guaranteed, and meanwhile, the generation scheme can better adapt to an actual scene.

This utility model discloses a remote terminal port cable fixing structure, belonging to the field of remote terminal technology. This remote terminal port cable fixing structure includes a remote terminal body and a fixing component. The fixing component is disposed outside the remote terminal body and is used to fix the connection between the port and the coaxial cable connector to prevent it from falling off or loosening. The remote terminal body includes a housing, and the front of the housing has several coaxial cable ports. The fixing component includes several first fixing rings, each of which is fitted onto the outside of several coaxial cable ports. A second fixing ring is provided on the side of the first fixing ring away from the housing. First connecting seats are installed on both outer sides of the first fixing rings, and second connecting seats are installed on both outer sides of the second fixing rings. Positioning grooves are formed inside the first connecting seats near the upper and lower ends. Positioning plates are inserted into both positioning grooves, and one side of each pair of positioning plates is fixedly connected to the side of the second connecting seat near the first connecting seat.

The utility model discloses an explosion-proof housing for fixedly installing a pump suction type phenol gas detector, which comprises an installing seat, the installing seat is provided with an explosion-proof housing, the explosion-proof housing is internally provided with a pump suction type detector, the explosion-proof housing is provided with a plurality of chambers, the chambers are internally provided with air bags, the air bags are internally provided with carbon dioxide solution, and the carbon dioxide solution is filled with a carbon dioxide solution. A movable plate is arranged on the side, facing the pumping type detector, of the air bag, the movable plate is connected to the inner wall of the anti-explosion shell through a movable assembly, and a blasting assembly is arranged on the side, facing the air bag, of the movable plate. When the pump suction type phenol gas detector breaks down and internal phenol gas is burnt, the detector and the phenol gas which are burnt can be extinguished in time, so that the possibility that the detector further explodes can be avoided, a series of reactions are isolated in the explosion-proof shell, and the service life of the explosion-proof shell is prolonged. The surrounding working environment and working personnel can be protected, and the safety and the explosion-proof effect are greatly improved.

The invention provides a high-voltage ride-through control method and device of a grid-connected converter, a controller and the grid-connected converter. The method comprises the following steps: monitoring a power grid voltage of a common coupling point of a power grid and a grid-connected converter in real time, and judging whether the grid-connected converter enters a high voltage ride through state or not according to the power grid voltage; if the grid-connected converter enters the high-voltage ride-through state, reducing a reactive current regulation coefficient within a first preset duration of entering the high-voltage ride-through state; determining a reactive current given value based on the power grid voltage and the reactive current adjustment coefficient; the reactive current adjusting coefficient is in positive correlation with the absolute value of the reactive current given value; and controlling the grid-connected converter by adopting the reactive current given value. According to the method, sudden change of the reactive current given value can be restrained from the source, the reactive current overshoot phenomenon is avoided, and therefore the jitter problem that when the power grid voltage enters the high-voltage ride-through state, uprush is conducted firstly, and then falling back is conducted is effectively relieved.

The invention provides a construction method and application of an SERS (Surface Enhanced Raman Scattering) biosensor for detecting vomitoxin. The SERS biosensor is used for rapidly detecting the vomitoxin (DON) in real time. Ag is sputtered on the surface of the filter paper through a magnetron sputtering method, so that the surface of the filter paper has a Raman signal enhancement effect. An aptamer (Apt) of vomitoxin is selected as a recognition sensing element to specifically capture DON, Apt is connected to filter paper through an Ag-S bond, Au-4-ATP-cDNA is further modified and connected to the filter paper through complementation of Apt and cDNA, and 4-ATP serves as a signal molecule to provide a Raman signal. When the DON exists, the Apt is combined with the DON and is separated from the cDNA, the Raman signal of the 4-ATP is weakened after the Au-4-ATP-cDNA falls off, and the DON is quantitatively analyzed by detecting the Raman signal change of the 4-ATP. The sensor has high sensitivity, specificity and stability, provides a new idea for on-site rapid detection and real-time monitoring, and has application value and application prospect.

This utility model discloses a conveying device for preventing the accumulation of calcined coke, comprising a mounting box fixedly installed on the rear side of a conveying device. A fixed plate is fixedly connected to the front side of the top of the conveying device. A mounting plate is provided at the central axis of the top of the fixed plate. A rotating rod is rotatably connected to the inner cavity of the mounting plate. Circular rings are fixedly connected to the left and right sides of the rotating rod. A connecting sleeve is fixedly connected to the rear side of the inner cavity of the circular rings. A swing plate is rotatably connected to the inner cavity of the connecting sleeve. Two symmetrical connecting plates are fixedly connected to the front side of the swing plate. An arc-shaped plate is fixedly connected to the front side of each of the two connecting plates. This utility model, through the coordinated use of a motor, a rotating rod, and a swinging component, causes the two arc-shaped plates to drive the connecting plates to swing within the inner cavity of the circular rings, which in turn causes the connecting sleeve to rotate on the surface of the connecting rod. Finally, the swing rod drives the ironing block to swing at the top of the conveying device, thus preventing the accumulation of calcined coke.

The present application belongs to the technical field of aviation piston engine. The present application discloses a kind of cylinder body structure and connecting method of air-cooled two-stroke aviation piston engine, to solve the problem of heat load concentration, aluminum alloy strength decline, cylinder deformation caused by the contact thermal resistance of aluminum alloy cylinder and cylinder cover connection area is too large, in the present application, connecting screw and threaded hole are matched with fine thread to increase contact area, reduce contact thermal resistance and enhance heat conduction performance;Threaded hole counterbore is treated to reduce the amount of residual gas in the hole, reduce the obstruction of gas to heat conduction;Connecting anti-loosening strictly prohibits the use of thread glue, to avoid local temperature rise. And using TC4 titanium alloy screw material, threaded hole circumferential uniform arrangement and enough connection depth and other supporting design, systematically make the heat of connection area conduct and dissipate efficiently, avoid the strength decline caused by heat load concentration, improve the anti-deformation ability of cylinder, ensure that the roundness and cylindricity of cylinder meet the design requirements, the engine performance maintains stable under design condition.