Construction method of high-pier and large-span portal pier prestress bent cap supporting system based on BIM design

The invention provides a high-pier large-span portal pier prestress cover beam supporting system construction method based on BIM design, a portal pier cover beam is subjected to three-dimensional modeling through the BIM technology, the three-dimensional space relation and the load distribution size condition of the portal pier cover beam are obtained, supporting system three-dimensional design is carried out on the basis of a cover beam three-dimensional model, and the supporting system is constructed. The BIM design model is subjected to stress check calculation in simulation analysis software, a supporting system is adjusted and optimized, and finally the supporting system suitable for high-pier large-span portal frame pier cover beam construction is obtained and comprises triangular brackets, sand boxes, cross beams and bailey beams, the four pairs of socket-and-spigot type triangular brackets are oppositely pulled and fixed to the two opposite sides of the upper portions of two pier ...

Single-address multi-slave IIC bus circuit and transmission method and device thereof

The invention provides a single-address multi-slave IIC bus circuit and a transmission method and device thereof. The IIC bus circuit comprises a host, a clock line, a first slave and a first data line, the number of the first slaves is at least two, and the addresses of the first slaves are the same; the first data lines are in one-to-one correspondence with the first slaves; the first slaves are connected with the host through the clock lines and the corresponding first data lines respectively; and when the host carries out data transmission with at least one first slave, the host is respectively communicated with the clock line and the first data line corresponding to the first slave, and is disconnected with the rest of the first data lines. According to the IIC bus circuit, the hardware cost of the IIC bus circuit is effectively reduced, and the data transmission time of the IIC bus circuit is shortened.

传感器

Domain name discrimination method and device, storage medium and electronic equipment

The invention discloses a domain name discrimination method and device, a storage medium and electronic equipment. The method comprises the following steps: acquiring a to-be-identified first domain name, wherein the to-be-identified first domain name comprises at least one first sub-domain name; determining first feature information of the first domain name according to the at least one first sub-domain name, the first feature information comprises at least one of the following information: a first number of first sub-domain names, a first similarity between the first sub-domain names, a second number of Internet protocol addresses obtained by analyzing each first sub-domain name, and a second similarity between the Internet protocol addresses of the second number; and determining a first feature vector based on the first feature information, and inputting the first feature vector into the domain name discrimination model to obtain a first prediction attribute tag output by the domain ...

Adjustable bucket wheel assembly and bucket wheel type seed sowing device

According to the adjustable bucket wheel assembly and the bucket wheel type seed sowing device, the bucket wheel assembly comprises a first bucket wheel disc and a second bucket wheel disc, a first seed spoon is arranged on the first bucket wheel disc, a second seed spoon is arranged on the second bucket wheel disc, and the first seed spoon and the second seed spoon jointly form a seed hanging area used for carrying seeds. The size of the seed hanging area can be adjusted by changing the deflection angle between the second bucket wheel disc and the first bucket wheel disc. According to the invention, the two seed spoons are respectively arranged on the two spoon wheel discs which can relatively deflect, so that the size of a seed hanging area formed by the two seed spoons can be increased or decreased according to seeds of different types and size intervals, and the size characteristics of the seeds in a seeding field can be flexibly and quickly adjusted without replacing the spoon wheels ...

Copper carbonate mineralized nanoparticles entrapped with biomacromolecules as well as preparation method and application of copper carbonate mineralized nanoparticles

The invention provides a biomacromolecule-entrapped copper carbonate mineralized nanoparticle and a preparation method and application thereof.The nanoparticle comprises a copper carbonate mineralized nanoparticle body and a biomacromolecule drug, and the biomacromolecule drug is stably entrapped by the copper carbonate mineralized nanoparticle body in the mineralization process; the copper carbonate mineralized nanoparticles are prepared by mineralizing copper ions and carbonate ions, the biological macromolecular drugs comprise nucleic acid drugs and protein drugs, and the drug loading capacity of the copper carbonate mineralized nanoparticles to the biological macromolecular drugs is 0-60%. According to the invention, through the strong acting force stable combination between the copper ions and the biomacromolecule drugs, the biomacromolecules are further stably loaded in the mineralized nanoparticles in the mineralization process, and the mineralized nanoparticles carry the biomacromolecule ...

Fault indication device and system

The utility model provides a fault indication device and system. The device comprises a photoresistor circuit, a controller and a hard node output circuit. The output end of the photoresistor circuit is connected with the input end of the controller and is used for converting the state information of the alarm indicating lamp into a level signal; the controller is used for outputting a corresponding control signal according to the level signal output by the photoresistor circuit; the input end of the hard node output circuit is connected with the output end of the controller, and the output end of the hard node output circuit is connected with a public measurement and control screen when used and used for outputting a corresponding switching value signal according to a control signal output by the controller. Enabling the common measurement and control screen to detect state information of the alarm indication lamp according to the switching value signal; the problem that an electric energy ...

GIS bus compartment displacement deformation monitoring and early warning platform based on multi-source data fusion

The invention provides a GIS bus compartment displacement deformation monitoring and early warning platform based on multi-source data fusion, and belongs to the technical field of deformation monitoring and early warning. A GIS bus compartment displacement deformation monitoring and early warning platform based on multi-source data fusion is characterized by comprising a sensor group system, a wireless transmission system connected with the sensor group system and a data processing system connected with the wireless transmission system, and the wireless transmission system comprises a data acquisition module and an information transmission module. The data processing system comprises an informatization processing platform and a client. Aiming at a formation mechanism of displacement deformation of the GIS bus cabin, a comprehensive experimental analysis platform which integrates systematization, real-time monitoring, data acquisition, multi-data source integration and analysis processing ...

Integrated harvesting device for harvesting and stripping ramie

An integrated harvesting device for ramie harvesting and stripping comprises a rack, an advancing unit is arranged at the bottom of the rack, an engine, a control chamber, a harvesting unit, a stripping unit and a collecting unit are arranged on the rack, and the harvesting unit, the stripping unit and the collecting unit are distributed in the ramie processing direction. At least one stripping wheel set and at least one conveying wheel set are arranged on the mounting frame, the conveying wheel set comprises a fixed wheel and a floating wheel, a clamping conveying area is formed between the fixed wheel and the floating wheel, and the floating wheel is used for moving relative to the fixed wheel to adjust the cross sectional area of the clamping conveying area. The cross sectional area of the clamping conveying area formed by the floating wheels and the fixed wheels can be adjusted in a self-adaptive mode along with changes of the number of passing ramie, it is guaranteed that the ramie ...

Rapid repair material for bridge expansion joints and preparation method thereof

The invention relates to the technical field of road maintenance materials, and discloses a rapid repair material for a bridge expansion joint. The weight ratio of the polyurethane acrylate to the modified acrylic resin to the methyl methacrylate to the butyl methacrylate to the 2-ethylhexyl acrylate to the aromatic tertiary amine to the liquid paraffin to the solid paraffin to the inorganic siliceous filler to the inorganic pigment to the carborundum to the benzoyl peroxide is (8 to 12) to (2 to 4) to (8 to 10) to (1 to 3) to (1 to 3) to (0.06 to 0.1) to (0.04 to 0.08) to (0.15 to 0.3) to (20 to 30) to (1 to 3) to (40 to 50) to (0.15 to 0.25); the preparation method comprises the steps that the components are mixed, heated and stirred to prepare the repairing material of the technical scheme, the reaction curing speed can be increased, the binding power, the breaking strength and the impact toughness can be improved, and meanwhile the repairing material can be rapidly cured in a low-temperature ...

Snap ring extrusion tool

The invention relates to the technical field of machining, and discloses a clamping ring extrusion tool which is used for installing a clamping ring on a rod piece and comprises a workbench, a clamping ring pressing device, a clamping ring pressing device, a clamping ring pressing device, a clamping ring pressing device, a clamping ring pressing device and a clamping ring pressing device. And the multiple extrusion assemblies are detachably arranged on the workbench, the multiple extrusion assemblies are arranged in the circumferential direction of the containing base, each extrusion assembly comprises a telescopic extrusion and pushing piece, and the multiple extrusion and pushing pieces can extrude the clamping ring to enable the clamping ring to contract inwards to abut against the rod piece. The clamping ring extrusion tool has the advantages that the clamping ring is extruded through cooperation of the extrusion pieces on the extrusion assemblies, the clamping ring is shrunk inwards ...

Device for accelerating solution cooling in magnesium sulfate production process

The utility model relates to the technical field of magnesium sulfate production, in particular to a device for accelerating solution cooling in the magnesium sulfate production process, and solves the problems that a rotary furnace is generally adopted for cooling in the traditional process in the prior art, and the traditional cooling method is limited in cooling capacity and cannot meet the requirement of large-scale production. Time and labor are wasted, the labor force of workers is wasted, and the production efficiency is reduced. A device for accelerating solution cooling in the magnesium sulfate production process comprises a water cooling box, a collecting box is fixedly connected to the bottom of the water cooling box, a cross-flow cooling tower is arranged on one side of the collecting box and comprises a circulating water inlet and a circulating water outlet, and a feeding port is embedded in the top of the water cooling box. The water cooling and air cooling modes are adopted ...

METHOD FOR PLAYING BACK VIDEO, VIDEO PLAYER, AND VIDEO SERVER

Disclosed are a method for playing back a video, a video player, and a video server. The method comprises: in a video playback process, receiving, by means of a wireless communication technology, physiological parameter data collected by a physiological parameter detector; generating, on the basis of the physiological parameter data, video viewing data used for expressing a situation that occurs in the physiological parameter data in the video playback process; and transmitting the video viewing data to a video server. By employing the described scheme, the present invention allows acquired recommended videos or recommended video clips to better attract viewers.

Method for improving furnace lining sintering effect of neutral furnace lining material baking furnace

The invention discloses a method for improving the furnace lining sintering effect of a neutral furnace lining material baking furnace. The method comprises the following steps that S1, an arc-shaped baking furnace steel block is designed; s2, an oven steel-wood mold is manufactured; s3, an oven steel resin sand mold is manufactured, and independent mold oven steel blocks are obtained; s4, during furnace baking, furnace baking steel blocks cling to the wall of the crucible and are stacked from the furnace bottom to the furnace top, and then foundry returns or small waste steel blocks are put into an inner cavity; and S5, after heat preservation at the temperature of 1000 DEG C is finished, molten steel at the temperature of 1600-1650 DEG C is added into the other furnace till the liquid level rises to the position of 2/3 of the height of a hearth, then the power is increased, waste steel is added in good time till the furnace is full, after the furnace is full, the temperature is increased ...

1MV pulse type portable X-ray machine

The utility model discloses a 1MV pulse type portable X-ray machine which comprises an energy generation cylinder support and an induction cavity cylinder support and further comprises an energy generation cylinder and an induction cavity cylinder. The top end of the energy generation cylinder support is fixedly connected with the outer wall of the energy generation cylinder, and the top end of the induction cavity cylinder support is fixedly connected with the bottom face of the induction cavity cylinder. Openings are formed in the two sides of the energy generating cylinder, the energy generating cylinder is provided with a rear cover plate, and the rear cover plate is in sealing connection with one side of the energy generating cylinder through a flange. The circuit has the characteristics of simple structure, small size, fast pulse leading edge and narrow pulse width, can well meet the requirement of high-power load in a pulse power system, and achieves the miniaturization design of ...

Vehicle interior safety monitoring method and system, equipment group and storage medium

The embodiment of the invention discloses a vehicle interior safety monitoring method and system, an equipment group and a storage medium, and belongs to the technical field of automobiles. The method comprises the following steps: when a target vehicle is in a parking and locking state and a change value of a pressure value detected by any pressure sensor within a preset time length is greater than a preset threshold value, sending an alarm notification to a mobile terminal; after receiving the alarm notice, the mobile terminal reminds a user to check the image in the target vehicle; a user can check whether a life object exists in the target vehicle on the mobile terminal; if a life object exists, measures can be taken immediately. In this way, the user can confirm the safety condition in the target vehicle. By adopting the embodiment of the invention, the occurrence of safety problems can be avoided.

Application of ONOO-and/or Na2S2 fluorescent probe reagent for early diagnosis of tumors

The invention provides an application of an ONOO-and/or Na2S2 signal fluorescent probe reagent for early diagnosis of tumors, which is characterized by comprising the application of a fluorescent probe 4-chloro-11-ethyl pyrano [2, 3-b] phenothiazine-2 (11H)-ketone with a structural general formula shown in the specification in preparation of an ONOO-and/or Na2S2 biomolecular detection reagent. The preparation method comprises the following steps: adding 2-methoxyphenothiazine and iodoethane into a mixed solution of dichloromethane and acetonitrile to react, and then carrying out post-treatment to obtain 10-ethyl-2-methoxy-10H-phenothiazine; the preparation method comprises the following steps: adding boron tribromide into 10-ethyl-2-methoxy-10H-phenothiazine under the protection of inert gas, carrying out a reaction under the condition of an ice bath, and then carrying out post-treatment to obtain 10-ethyl-10H-phenothiazine-2-alcohol; the preparation method comprises the following steps ...

Intelligent silkworm breeding device

The invention discloses an intelligent silkworm breeding device, and relates to the field of silkworm breeding technical equipment.The intelligent silkworm breeding device comprises a breeding platform, a silkworm excrement collecting platform, a positioning assembly, a first supporting assembly, a controller and a power assembly, and the power assembly is installed on the first supporting assembly and reciprocates along the first supporting assembly under the control of the controller; and the power assembly is limited through the positioning assembly, so that an operator can conveniently take or put back the feeding platform when feeding mulberry leaves and spreading lime, the labor intensity is effectively reduced, and the daily management efficiency of silkworm breeding is improved.

Control method and device of cleaning equipment and cleaning equipment

The invention discloses a control method and device of cleaning equipment and the cleaning equipment. The control method comprises the steps that an air quality cumulative value is obtained, and a comprehensive air quality coefficient is calculated; a first cleaning gear is set according to the comprehensive air quality coefficient; according to the first cleaning gear, a fan and a clean water pump of the cleaning equipment are adjusted, and the cleaning equipment is controlled to execute the cleaning task; in the process of executing the cleaning task, the smudginess degree is detected in real time, and the first cleaning gear is updated according to the smudginess degree until the cleaning task is completed; the smudginess degree comprises a ground turbidity value and air quality data. The first cleaning gear of the cleaning task is set according to the accumulated value of the air quality, the cleaning gear is dynamically updated, the fan and the clean water pump are adjusted according ...

Bait for strengthening gonad development and method for hybridizing takifugu flavidus and takifugu hexagonalis

The invention provides a parent fish gonad development strengthening bait and a hybridization method of male takifugu flavidus and female takifugu hexangularis, and belongs to the technical field of aquaculture. The parent fish gonad development strengthening bait comprises the following components in percentage by mass: 65% of fish feed, 20% of fresh shrimp meat, 5% of a propagation strengthening additive, 5% of fish oil powder, 2.5% of vitamin C, 1.8% of vitamin E and 0.7% of taurine. The fortified bait can promote gonad development and sexual maturity of the parent fish at the same time, and the quality of sperms and ova of the parent fish is improved; according to the method, the sperm-egg combination of the male takifugu flavidus and the female takifugu hexangularis is realized for the first time in China through a special artificial fertilization mode, high-quality hybrid fertilized eggs are obtained, and a certain number of offspring seeds in a certain scale are obtained through ...

Cold heading die structure for manufacturing double-flange-shaped part

The cold heading die structure for manufacturing the double-flange-shaped part comprises a female die assembly and a male die assembly, the female die assembly comprises a female die outer sleeve, a fixing bracket, an inner diameter maintaining rod, an ejector sleeve, a conical nest die and an opening and closing die assembly, and the fixing bracket and the conical nest die are both installed in the female die outer sleeve; the conical nest mold is located at one end of the fixed bracket, the fixed bracket is provided with a cylindrical channel along the central axis of the fixed bracket, the push pipe is arranged in the channel in a sliding mode, the inner diameter maintaining rod is sleeved with the push pipe in a sliding mode, and one end of the inner diameter maintaining rod extends out of the conical nest mold. The double-flange cold heading die has the technical effects that the double-flange cold heading part can be quickly and efficiently produced, the size precision of the part ...

Beneficiation method for preparing ultra-pure iron ore concentrate from magnetite

The invention discloses a beneficiation method for preparing ultra-pure iron ore concentrate from magnetite, and belongs to the technical field of beneficiation. The method comprises the following steps: (1) roughing experiment; (2) carrying out a stage grinding and floating test and a four-time concentration test on the rough concentrate; (3) carrying out a leaching test; and (4) an acid leaching experiment is conducted, specifically, the leached concentrate is added into dilute sulphuric acid with the mass fraction being 5%, the acid leaching experiment is conducted, the obtained ore is washed to be neutral, and the washed concentrate is the ultra-pure iron concentrate. According to the method, efficient impurity removal of the iron ore concentrate is achieved through a physical-chemical combined method, the grade of the iron ore concentrate is improved, and the content of silicon dioxide is remarkably reduced. The grade of TFe in the finally obtained ultra-pure iron ore concentrate reaches ...

Lost foam casting process for suspension support

The invention discloses an evanescent mode casting process for a suspension support. The evanescent mode casting process comprises the steps that S1, the shrinkage cavity distribution condition in the casting part state is analyzed; s2, according to shrinkage cavity distribution, subsidies and risers are arranged, the risers are arranged on the side faces of all the pin shaft holes, and the subsidies are additionally arranged on the lower sides of all the pin shaft holes; s3, a hollow resin sand ball is arranged at the neutral position; and S4, according to the evanescent mode recarburization principle, a horizontal filling mode is selected, and a pouring system model is established. The risers are arranged on the side faces of all the pin shaft holes, and the patches are additionally arranged on the lower sides of all the pin shaft holes, so that the hole shrinkage problem caused by hot spot dispersion is solved; the hollow resin sand balls are arranged at the neutral positions, so that ...

Charging circuit supporting programmable charging and charging method

The invention provides a charging circuit supporting programmable charging and a charging method. The charging circuit comprises a charging and discharging interface, a bidirectional buck-boost circuit, a bypass field effect transistor circuit, a battery management circuit, a control circuit and a bypass driving unit. When the power supply equipment has the programmable power supply characteristic, the control circuit controls the power supply equipment to be communicated with a programmable charging circuit composed of the charging and discharging interface, the bypass field effect transistor circuit, the battery management circuit and the control circuit through the bypass driving unit so as to charge a battery. By arranging the programmable charging circuit and the bidirectional buck-boost direct current conversion circuit, when the power supply equipment has the programmable power supply characteristic, the charging voltage and the charging current are adjusted without depending on ...

Intelligent grille transmission device and automobile intelligent grille

The invention belongs to the field of grille transmission devices, and provides an intelligent grille transmission device and an automobile intelligent grille. The transmission device is arranged in the middle of the frame body, an actuator is arranged on the transmission device, the output end of the actuator is in transmission connection with a transmission shaft, a driving rod is connected to the transmission shaft, a pulling rod is hinged to the driving rod, an opening and closing rod is rotationally connected to the lower end of the pulling rod, and blades are rotationally connected to the other end of the opening and closing rod; the other side of the blade is rotationally connected to the frame body and located on the side edge of the actuator; when the actuator drives the transmission shaft to rotate, the driving rod can be driven to rotate, when the driving rod rotates, the pulling rod can be driven to move so as to drive the opening and closing rod to be opened or closed, and ...

Method for detecting graphitization degree of cast iron

The invention belongs to the field of graphitization degree detection, and particularly relates to a cast iron graphitization degree detection method, which comprises the following steps: weighing the mass of a cast iron sample, measuring the volume of the cast iron sample, calculating the density of the cast iron sample, and calculating the graphitization degree. By solving the density of the cast iron, the graphitization degree which is difficult to measure is reflected through the density which is easy to measure, the measurement method is simple and convenient, and the calculation principle is popular and easy to understand. In the measuring process, only key parts of the casting need to be sampled, the volume and the weight of the key parts are measured, the density is calculated, the graphitization degree of the cast iron can be calculated according to the formula rho = 1/((1-a% G)/rho 1 + a% G/2.26) = 1/((1-a% G)/(7.88-0.04 a (1-G)/(1-a% G)-0.073b/(1-a% G)-0.016 c/(1-a% G))) + a% ...

Novel steel bridge deck pavement structure

... 本实用新型是有关于一种新型钢桥面铺装结构，其是由钢纤维防水混凝土层、聚氨脂防水层、细砂层中粒式SBS改性沥青混凝土层、细粒式SBS改性沥青混凝土层组成，其中钢纤维防水混凝土层由多个剪力键、铺装层钢筋及防水混凝土组成。本实用新型能使其桥面板铺装层与钢桥面板接触的界面有良好的粘结性和弹性模量变形协调台阶，具有良好的抗车辙性能、良好的平整度和抗滑性能，不产生剪切滑移且能防水，非常适于实用。 ...

Dilute sulfuric acid purification and recovery device

The utility model relates to the technical field of industrial production, in particular to a dilute sulphuric acid purification and recovery device, and solves the problems that in the prior art, no purified dilute sulphuric acid exists, a large amount of site space of a factory is occupied, leakage is caused once the dilute sulphuric acid is stored improperly, and environmental pollution is caused. A dilute sulfuric acid purification and recovery device comprises a screening box, a neutralization box is arranged at the top of the screening box, the bottom of the neutralization box is fixedly connected with the top of the screening box through supporting legs, the bottom of the neutralization box is communicated with a discharging pipe, and a valve is installed on the discharging pipe. According to the utility model, the dilute sulphuric acid is purified by utilizing the neutralization reaction of the dilute sulphuric acid and the slaked lime, so that not only is the dilute sulphuric acid ...

Underwater impact wrench

The underwater impact wrench comprises a base, a barrel and an end cover, the end cover is connected to the base through the barrel, a first handrail mechanism is arranged on the side face of the end cover, a propeller assembly is arranged on the side face of the outer circumference of the barrel, a propeller switch is arranged on the base, a rotating mechanism is arranged in the base, the barrel and the end cover, and a control box is arranged on the top face of the base. A direction adjusting knob is arranged on the control box, and a second handrail mechanism is movably connected to the base. Through the design of the first handrail mechanism and the second handrail mechanism, the stability and reliability of the underwater impact wrench during holding are improved, flexible operation is facilitated, storage is convenient and fast, the whole impact wrench can face downwards through the propeller assembly, thrust is provided, an operator only needs to straighten the impact wrench, external ...

Lock catch structure for automobile box cover

The invention discloses a lock catch structure for an automobile box cover. The lock catch structure comprises a shell; the lock cylinder is arranged in the shell and can slide in the height direction of the shell to achieve unlocking or locking, and an annular rail is formed in the lock cylinder; the lock hook is annularly arranged and is provided with a first connecting section and a second connecting section which are located at the opposite ends and a third connecting section and a fourth connecting section which are located on the opposite sides, and the two ends of the first connecting section are connected to one end of the third connecting section and one end of the fourth connecting section correspondingly; two ends of the second connecting section are respectively connected to the other ends of the third connecting section and the fourth connecting section; the first connecting section can slide along the annular rail, and the second connecting section is rotationally connected ...

Application of caffeic acid and medicine for preventing and treating oral squamous cell carcinoma

The invention provides application of caffeic acid and a medicine for preventing and treating oral squamous cell carcinoma. Comprising one or more of application in preparation of an oral squamous cell carcinoma tumor cell proliferation inhibitor, application in preparation of a medicine for inhibiting or treating oral squamous cell carcinoma tumor migration and application in preparation of a medicine for preventing and/or treating oral squamous cell carcinoma tumor. According to the application disclosed by the invention, caffeic acid is used as a molecular targeting drug to inhibit the growth of oral squamous cell carcinoma tumor cells and/or inhibit the occurrence, metastasis and invasion of tumors and reduce the propagation of cancer cells, so that an effective prevention and treatment means is provided for the oral squamous cell carcinoma; through combined application of epigenetic anti-cancer drugs and traditional chemotherapy drugs, multi-target treatment can be achieved, and the ...

AUTO-FOCUS METHOD, AUTO-FOCUS SYSTEM, AND PROJECTION DEVICE

A projection device having an auto-focus system. A focus control module (4) of the auto-focus system enables a motor to have at least two operating states having different speeds. In a focusing process, the focus control module (4) controls the motor to operate in different operating states, and controls the motor to switch between different operating states. The present enables fast and efficient focusing, and can reduce wear of a motor.

Magnetic material for oil-water separation, preparation method of magnetic material, oil-water separation method and oil-water separation device

The invention discloses a magnetic material for oil-water separation, a preparation method of the magnetic material, and an oil-water separation method and device. The method comprises the following steps: preparing magnetite or maghemite into magnetic particles, dispersing the magnetic particles in a carboxymethyl cellulose aqueous solution, carrying out ultrasonic treatment, carrying out solid-liquid separation, and collecting the particles by using a magnet to obtain CMC-filled magnetic particles; and dispersing the CMC-filled magnetic particles in an organic solvent of ethyl cellulose, carrying out ultrasonic treatment, carrying out solid-liquid separation, and collecting the particles by using a magnet to obtain the magnetic material for oil-water separation. The oil-water separation device comprises a separation column, a coil, an upper grid and a lower grid which are arranged in the separation column, and a magnetic material filled between the upper grid and the lower grid. By adding ...

Application of caffeic acid in preventing and treating colorectal cancer and medicine containing caffeic acid

The invention provides application of caffeic acid in prevention and treatment of colorectal cancer and a medicine containing the caffeic acid. Comprising one or more of application in preparation of a colorectal cancer cell proliferation inhibitor, application in preparation of a colorectal cancer cell dryness maintenance inhibitor, application in preparation of a medicine for inhibiting or treating colorectal cancer tumor migration and application in preparation of a medicine for preventing relapse and/or treating colorectal cancer tumors. The application disclosed by the invention provides an effective prevention and treatment means for colorectal cancer; through combined application of epigenetic anti-cancer drugs and traditional chemotherapeutic drugs, multi-target treatment can be achieved, and the synergistic effect can be achieved to the maximum extent.

Flexible welding jig for automobile wheel cover

The invention provides a flexible welding jig for an automobile wheel cover, and belongs to the technical field of automobile parts, the flexible welding jig comprises a base plate, a plurality of pressing mechanisms are mounted on the base plate, each pressing mechanism comprises a pressing air cylinder, a supporting block and a pressing block, and supporting planes on the multiple supporting blocks are spliced to form a supporting platform; the positioning moving mechanism is installed on the base plate, the positioning moving mechanism comprises a moving air cylinder and a positioning air cylinder, and a positioning pin is arranged on the positioning plate; the expanding and limiting mechanism is installed on the base plate and comprises a limiting air cylinder and an expanding air cylinder, the number of output ends of the expanding air cylinder is two, the expanding air cylinder is arranged up and down in the vertical direction, and each output end is connected with an expanding part ...

Polishing device for milling notch at end part of automobile luggage rack

The invention discloses a polishing device for milling notches at the ends of automobile luggage racks, which comprises two turntables, a plurality of left luggage racks are placed on one turntable, and a plurality of right luggage racks are placed on the other turntable; a polisher and robotic arm assembly; the clamping assembly comprises a first clamping unit and a second clamping unit, and the first clamping unit comprises two first clamping blocks; the second clamping unit comprises two second clamping blocks. The first clamping unit and the second clamping unit are arranged in the same clamping assembly, so that the clamping assembly can clamp the left luggage rack and can also clamp the right luggage rack, only one machine arm assembly needs to be arranged to drive the clamping assembly to move, and then the left luggage rack or the right luggage rack is carried to execute a grinding path; and the grinding cost of the left luggage rack and the right luggage rack is reduced.

Automatic degerming method and device

The invention discloses an automatic sterilization method and device which are suitable for cleaning equipment, and the cleaning equipment comprises a UV disinfection lamp arranged above a rolling brush, a UV disinfection lamp arranged in a sewage tank, a water electrolysis device, the rolling brush, the sewage tank, a clean water tank and a base; the automatic sterilization method comprises the steps that when it is determined that a running rolling brush needs to be sterilized, a UV sterilization lamp arranged above the rolling brush is controlled to be turned on so as to irradiate the rolling brush, and meanwhile, a water electrolysis device is controlled to be turned on to electrolyze water so as to generate hypochlorous acid to sterilize the rolling brush; when the roller brush which is being dried is sterilized, a UV sterilizing lamp arranged above the roller brush is controlled to be turned on, so that the roller brush is irradiated for sterilization; when it is determined that the ...

Virtual power plant double-layer optimization scheduling method considering source-load multi-type standby

The invention discloses a virtual power plant double-layer optimization scheduling method considering source-load multi-type standby. The method comprises the following steps: step 1, constructing a virtual power plant system containing wind power, shared energy storage, a gas turbine and a flexible load; 2, participating in energy and standby scheduling according to the uncertainty of wind power, demand response and a shared energy storage operation mode, and modeling; 3, establishing a double-layer scheduling model of which the upper layer is a day-ahead plan scheduling model and the lower layer is an intra-day real-time scheduling model; 4, analyzing the influence of shared energy storage and demand response on the energy and standby scheduling of the virtual power plant, and achieving the optimal scheduling of the virtual power plant. The method fully considers the reserve potential of the source-load side resources, and reduces the electricity purchase cost of the user side while improving ...

Automobile camera assembly position correction mechanism

The invention provides an automobile camera assembly position correction mechanism, and belongs to the technical field of automobile parts, and the automobile camera assembly position correction mechanism comprises a shell which is connected to an assembly jig through a fastener, and the shell and an assembly platform are located on the two sides of the assembly jig respectively in the installation direction of a camera; the guide pin is inserted into the shell in the mounting direction of the camera and can move up and down in the mounting direction of the camera, a guide part is arranged on the guide pin, the guide part protrudes out of the assembly platform, and when the camera is inserted into an assembly product body placed on the assembly platform, the guide part can move up and down in the mounting direction of the camera. And the second mounting hole, the guide pin and the camera are coaxial through the guide part. According to the invention, the self-centering positioning installation ...

Miniature boost energy storage module

The utility model discloses a miniature boost energy storage module which comprises a boost chip, a miniature boost transformer, a miniature voltage doubling circuit and an energy storage unit. Wherein the boosting chip is used for converting voltage input by a power supply into pulsating direct-current voltage and continuously boosting the pulsating direct-current voltage, and inputting the boosted pulsating direct-current voltage into the micro boosting transformer; the micro boosting transformer boosts the input pulsating direct-current voltage for the second time and inputs the pulsating direct-current voltage boosted for the second time into the micro voltage doubling circuit; the micro voltage doubling circuit is used for boosting the input pulsating direct-current voltage which is boosted for the second time for the third time and charging the energy storage unit; the energy storage unit is used for storing electric energy and supplying power to external equipment. The miniature ...

Charging control method, energy storage device and readable storage medium

The invention discloses a charging control method, an energy storage device and a readable storage medium, and the method comprises the steps: obtaining the power supply capability information of a power supply device if the power supply device meets a power supply condition when detecting that the power supply device is connected to a charging and discharging interface; acquiring charging demand information of the battery module; target output voltage of the power supply equipment is determined according to the power supply capacity information and the charging demand information, and the target output voltage is the output voltage of the power supply equipment when the voltage difference between the input voltage and the output voltage of the DC-DC conversion unit is minimum; and controlling the power supply equipment to output the target output voltage to the DC-DC conversion unit, so that the DC-DC conversion unit charges the battery module according to the target output voltage. According ...

Sodium dithiocarbamate-copper calcium phosphate nanoparticles as well as preparation method and application thereof

The invention provides sodium dithiocarbamate-copper calcium phosphate nanoparticles and a preparation method and application thereof.The sodium dithiocarbamate-copper calcium phosphate nanoparticles comprise copper calcium phosphate nanoparticles and sodium dithiocarbamate, and the copper calcium phosphate nanoparticles are prepared in the mode that calcium ions are regulated and controlled by human serum protein and are biologically mineralized in a DMEM culture medium; the copper calcium phosphate nanoparticles entrap copper ions in a biomineralization process, the sodium dithiocarbamate is adsorbed on the surfaces of the copper calcium phosphate nanoparticles, and the sodium dithiocarbamate-copper calcium phosphate nanoparticles induce overload of calcium ions in cells. The nanoparticles are rapidly degraded and release a large amount of Ca < 2 + > by responding to a weak acid microenvironment of tumor cell lysosome, copper ions can be combined with DTC to generate CuET after degradation ...

Vehicle-mounted urinal

The invention provides a vehicle-mounted urinal. The vehicle-mounted urinal comprises a liquid storage device, a sealing cover assembly, a hose and a head rotating assembly. The liquid storage device is provided with a urine collecting cavity and a mounting groove. And the bottom of the urine collecting cavity is provided with a sewage draining exit and a sewage draining cover. The sealing cover assembly comprises a shielding plate and an opening and closing driving piece, and the opening and closing driving piece controls the shielding plate to open/close the top opening of the mounting groove. And the bottom end of the hose extends to the urine collecting cavity through the opening. The head rotating assembly comprises a rotating sleeve and a rotating driving piece. And the rotating driving piece is connected with and drives the rotating sleeve to swing, and drives the head of the hose to retract into the mounting groove or extend out of the mounting groove. The vehicle-mounted urinal ...

Overhead line vertical pulling type strain insulator gold utensil

... 本实用新型公开了一种架空线路直拉型耐张金具，包括与外部导线相连接的两个连接片，所述两个连接片之间通过一伸缩组件连接，所述伸缩组件包括保护件和弹性件，所述保护件和弹性件的一端均与一个连接片相连接，另一端均与另一个连接片相连接，其中保护件的拉伸长度等于弹性件的最大拉伸长度。本实用新型的架空线路直拉型耐张金具，通过两个连接片的设置就可以有效的连接两段外部导线，而通过弹性件的设置就可以在金具受到张力的时候使得两个连接片之间的距离拉长的效果，而通过保护件的设置就可以避免弹性件被过度拉长损坏的问题。 ...

Method for extracting gas in advance in coal mine coal face area

The invention belongs to the technical field of coal mine gas extraction. The coal mine coal face area gas advanced extraction method is characterized in that coal face area gas advanced extraction is carried out by adopting layer penetrating and bedding area segmented hydraulic fracturing permeability increasing, and the coal face area gas advanced extraction method comprises the following steps that S1, the position of a coal face bottom extraction roadway is determined; s2, the position of segmented hydraulic fracturing is determined, segmented hydraulic fracturing drilling is completed, and parameter testing of coal seam original gas is carried out; s3, determining section hydraulic fracturing parameters of a crossing and bedding area along the inclination of the working face; s4, the hydraulic fracturing sequence is determined, and cross-layer and bedding water fracturing permeability increasing is completed; and S5, fracturing hole extraction, coal seam gas extraction drilling construction ...

Virtual power plant optimal scheduling method considering demand response in energy and peak regulation market

The invention discloses a virtual power plant optimal scheduling method considering demand response in an energy and peak regulation market. The method comprises the following steps: constructing a virtual power plant system aggregating source-load side resources; a source-load side resource operation strategy under the energy and peak regulation market is formulated based on a Ningxia peak regulation market rule; establishing a day-ahead-intra-day two-stage scheduling model of the virtual power plant; and solving the scheduling model to obtain a day-ahead production plan and an intra-day real-time scheduling result. By formulating a reasonable load demand response strategy, a source side unit operation strategy and a scheduling strategy that the virtual power plant participates in the energy and peak regulation market, the influence of wind and light output uncertainty on the virtual power plant can be effectively avoided, and the load peak-valley difference and the load power purchase ...

Method, device and equipment for automatically generating coal roadway support parameters and medium

The invention relates to the technical field of coal roadway supporting, in particular to a coal roadway supporting parameter automatic generation method and device, equipment and a medium, and the method comprises the steps: receiving a to-be-predicted roadway parameter input by a user, and determining a grid monitoring point position corresponding to a target roadway model based on the to-be-predicted roadway parameter; obtaining an initial support parameter corresponding to the target roadway model based on the to-be-predicted roadway parameter and the target support parameter prediction model; based on the to-be-predicted roadway parameters, the initial support parameters and the grid monitoring point positions, performing analogue simulation processing through Flac3D to obtain target displacement corresponding to the target roadway model; judging whether the target displacement belongs to a preset range; and when it is determined that the target displacement belongs to the preset range ...

Air pressure type precise corn seed-metering device with flexible seed cleaning function

The invention provides an air pressure type corn precision seed-metering device with flexible seed cleaning and adjustable seed cleaning knife position, which relates to a seed-metering device for an agricultural machinery precision seeder, and comprises a front shell 1, a transmission system 2, a seed-metering disc 3, a position-adjustable seed cleaning knife 4, a seed pushing mechanism 5, an air blocking wheel mechanism 6, a seed guide pipe 7, a rear shell 8 and the like, a main body of the front shell 1 is of a circular cavity structure composed of a circular bottom plate and an annular wall perpendicular to the circular bottom plate, and the annular wall is perpendicular to the circular bottom plate. The seed metering plate 3 is disc-shaped; the position-adjustable seed cleaning cutter 4 is a disc seed cleaning cutter capable of sliding on the sliding rail; the seed pushing mechanism 5 is generally in a circular truncated cone shape penetrating through the shaft; the whole air blocking ...

Red light emission probe for detecting beta-galactosidase as well as preparation method, use method and application of red light emission probe

The invention provides a red light emission probe for detecting beta-galactosidase as well as a preparation method, a use method and application of the red light emission probe, and relates to the technical field of analytical chemistry. The structural formula of the red light emission probe for detecting the beta-galactosidase is shown in the specification. The invention also provides a preparation method and a use method of the red light emission probe for detecting the beta-galactosidase. The red light emitting probe for detecting the beta-galactosidase is applied to quantitative analysis of the beta-galactosidase. The red light emitting probe for detecting beta-galactosidase is used for assisting early diagnosis of colon tumor or preparing a reagent capable of assisting early diagnosis of colon tumor. According to the red light emission probe for detecting beta-galactosidase provided by the invention, a quinoxaline group and a rigid five-membered ring are combined to construct a novel ...

Cleaning device base lifting control method and system

The invention provides a cleaning device base lifting control method and system, and the method comprises the steps: obtaining a starting signal of a current cleaning mode of a cleaning device, and controlling a cleaning device base to ascend or descend to a preset first standard height; and then collecting a plurality of cleaning data when the cleaning device performs cleaning according to the cleaning mode, controlling the cleaning device base to ascend or descend to a preset second standard height, and controlling the cleaning device base to ascend or descend to a preset third standard height when receiving a closing signal of the cleaning mode. The height of the base is automatically adjusted according to friction force of the cleaning face, and the cleaning effect is improved.

Device for recovering aluminum trichloride in anthraquinone production waste liquid

The utility model discloses a device for recovering aluminum trichloride in anthraquinone production waste liquid, which comprises a reaction kettle, a body part with a reaction space, a heating device mounted at the bottom of the body part, and a stirring device, the first distillation kettle is communicated with the reaction kettle and is used for collecting aluminum trichloride in the reaction kettle after the reaction is completed; the second distillation kettle is communicated with the reaction kettle and is used for collecting anthraquinone in the reaction kettle after the reaction is completed; the connection state between the first distillation kettle and the reaction kettle and the connection state between the second distillation kettle and the reaction kettle include that the first distillation kettle is communicated with the reaction kettle, and the second distillation kettle is disconnected from the reaction kettle; the first distillation kettle is disconnected from the reaction ...

Modified attapulgite-based material as well as preparation method and application thereof

The invention discloses a modified attapulgite-based material as well as a preparation method and application thereof, and the modified attapulgite-based material is prepared by the following steps: (1) carrying out ore grinding surface modification on attapulgite, mixing the ground attapulgite with acid, and carrying out heating reaction for a set time to obtain acid-modified attapulgite; and (2) uniformly mixing the acid-modified attapulgite and a vulcanizing agent in a solvent, heating to 60-90 DEG C, reacting for 1-2 hours, and separating solids after the reaction is completed, thereby obtaining the modified attapulgite-based material. The modified attapulgite-based material has very high treatment effect and efficiency on the silver-containing wastewater, is low in recovery difficulty and use cost and high in practicability, and can be used for adsorbing silver ions in the silver-containing electroplating wastewater.

Coal seam roof reserved gas chamber source collection extraction method

The invention belongs to the technical field of gas extraction, and particularly relates to a coal seam roof reserved gas chamber source collection extraction method which comprises the steps that 1, a plurality of extraction holes are formed in a floor extraction roadway crossing hole, and a gas collection reserved gas chamber is reserved at the bottom of each extraction hole; 2, an extraction pipe screen pipe is tripped into the reserved air chamber along the hollow drill rod; 3, a suspension fixing device is arranged at the end of a screen pipe of the extraction pipe, after the extraction pipe is inserted into the extraction hole, the extraction pipe is firmly fixed into the reserved gas chamber through the suspension fixing device, and the hollow drill rod is withdrawn; 4, grouting and hole sealing are conducted on the section, out of the extraction hole, of the extraction pipe through a hole packer, and the extraction pipe is firmly fixed in the extraction hole; 5, the ends, exposed ...

Floating population self-service verification and registration method based on smart community

The invention discloses a floating population self-service verification and registration method based on a smart community, and the method comprises the steps: carrying out the face recognition of a person, collecting the identity card information, and verifying the consistency of the person and the identity card through employing an intelligent device which integrates the positioning, face recognition and identity card information collection functions; the intelligent device locates the current position and obtains a standardized coordinate address value; searching from a housing resource information system, a rental enterprise information system, a property management system and a property owner information system of the smart community according to the collected identity card information; and according to the searched information, performing cross validation by combining data of a housing resource information system, a rental enterprise information system, a property management system ...

Multipurpose mixed bean hole sowing grooved wheel type seed sowing device

The invention provides a multi-purpose mixed bean hole sowing grooved wheel type seed sowing device. The multi-purpose mixed bean hole sowing grooved wheel type seed sowing device comprises a front shell, a seed sowing grooved wheel assembly, a transmission mechanism, a seed cleaning mechanism, a rear shell and the like, a main body of the front shell is in a circular plate shape, and a seed inlet is formed in the upper part of the outer part of the main body; the seed-metering grooved wheel assembly is in a disc shape on the whole and is mounted on the transmission mechanism; the transmission mechanism is positioned in the center of the whole seed-metering device; the seed cleaning mechanism is mounted on the front shell; the adjusting baffle can slide on the adjusting baffle sliding rail; the rear shell is composed of a circular bottom plate and an annular wall perpendicular to the circular bottom plate, and the annular wall is perpendicular to the circular bottom plate; a seed metering ...

Thermoelectricity joint optimization scheduling method for virtual power plant based on thermoelectric decoupling

The invention discloses a combined heat and power optimization scheduling method for a virtual power plant based on thermoelectric decoupling. The combined heat and power optimization scheduling method comprises the following steps: step 1, constructing a virtual power plant system containing combined heat and power generation; 2, making an operation strategy of distributed resources in the virtual power plant; 3, formulating a two-stage scheduling strategy of the virtual power plant; 4, establishing a two-stage scheduling model and constraint conditions considering the environmental cost; and 5, quantitatively analyzing the influence of the virtual power plant aggregation cogeneration unit on the virtual power plant by solving the two-stage scheduling model. According to the virtual power plant thermoelectric joint optimization scheduling method based on thermoelectric decoupling, the waste heat of the gas turbine is fully utilized, the operation flexibility of the gas turbine is improved ...

Cleaning method based on external pipe

The invention provides a cleaning method based on an external pipe, which comprises the following steps: sending a first pulse signal to the external pipe, identifying the type of the external pipe connected to a surface cleaning device according to a second pulse signal fed back by the external pipe, and cleaning the external pipe according to the identified type of the external pipe. The method comprises the steps of determining and skipping to a cleaning program corresponding to an external pipe type in a preset cleaning program and a rule corresponding to the external pipe type, and controlling an external pipe to execute the cleaning program corresponding to the external pipe type for cleaning after a working signal sent by the external pipe is received according to the cleaning program, so that the user experience is improved, and the user experience is improved. The cleaning effect is enhanced.

Corn precision seeder seed guiding device based on airflow-assisted seed feeding

The invention provides a corn precision seeder seed guiding device based on airflow-assisted seed feeding. The corn precision seeder seed guiding device comprises a positive pressure channel, a main pipeline, a middle connecting part and the like, the positive pressure channel is provided with an upper opening and a lower opening, and the upper opening is connected with the fan to provide positive pressure; the positive pressure is connected with the main pipeline through the middle connecting part, and airflow can be transmitted into the main pipeline through the positive pressure channel and the middle connecting part; the main pipeline is of a closed cylindrical structure, openings are formed in the upper end and the lower end of the main pipeline respectively, the main pipeline comprises a linear control part and a curve seed guide part which are sequentially connected, an opening in the upper end of the main pipeline is located in the linear control part and corresponds to a seed feeding ...

Hot-line work mechanical arm

The invention discloses a hot-line work mechanical arm which comprises a plurality of joint sets, the joint sets are connected through connecting rods to form a driving arm, one end of the driving arm is provided with a working head, the working head comprises a first shell, each joint set comprises a second shell, and the first shells, the second shells and the connecting rods are all made of insulating materials. The hot-line work mechanical arm is good in insulativity, insulation protection does not need to be additionally arranged, and the motion function is not affected.

Fabricated house building node grouting device and construction method

An assembly type house building node grouting device comprises an air compressor and magnetic vibrating devices, the air compressor communicates with a grouting pipe, the other end of the grouting pipe is provided with a grouting head and communicates with an assembly type house building, and the magnetic vibrating devices are arranged on the two sides of a grouting part; according to the grouting device, the problem that the fluidity of grout is insufficient in the grouting process can be effectively solved, the grouting process is greatly simplified, and the grouting efficiency is improved while the grouting quality is improved.

Forced regular discharge test system and method for safety valve of pressure-bearing boiler

The invention discloses a pressure-bearing boiler safety valve forced regular discharge test system and method, one or more safety valves are arranged on a boiler barrel of a pressure-bearing boiler, and the system comprises a pressure sensor used for detecting the pressure in the boiler barrel and installed on the boiler barrel of the pressure-bearing boiler; the first sensor is used for detecting whether the safety valve is opened; the second sensor is used for detecting whether a medium is discharged from the discharge port of the safety valve; the control cabinet is used for sending corresponding emission test instructions and completing interaction work according to detection data of the pressure sensor, the first sensors and the second sensors, and the control cabinet is connected with the pressure sensor, the first sensors and the second sensors. According to the invention, the daily safety management work of the boiler is carried out, personnel operation is more standard, and boiler ...

Hatching method and hatching device for coral paradisi

The invention discloses a method and a device for hatching coral paradisi. The device for hatching coral paradisi comprises a coral breeding tank and a water circulation filtering system, the coral breeding device comprises a coral breeding tank and a water circulation filtering system. The coral culture tank is a transparent glass tank; the water circulation filtering system comprises a water pump, a protein separator, a refrigerating machine, a bacteria nitrification room and filtering cotton; a water pump and an algae plate are arranged in the ATS algae plate pool; the algae plate is suspended above the algae plate pool; the water pump is connected with each algae plate through a PVC pipe; the ATS algae plate pool is connected with the coral breeding tank through a water pipe, and water flow is communicated; the device is combined with the method provided by the invention, so that the coral paramabilis can be quickly hatched and bred.

High-thermal-conductivity wave-absorbing gasket and preparation method thereof

The invention discloses a high-heat-conductivity wave-absorbing gasket and a preparation method thereof. The gasket is prepared from matrix resin, hydrogen-containing silicone oil, metal magnetic powder, fiber heat-conducting filler, an inhibitor, a catalyst and other raw materials. The preparation method comprises the following steps: material mixing: uniformly mixing and stirring the vinyl silicone oil, the hydrogen-containing silicone oil, the inhibitor, the catalyst, the fiber heat-conducting filler, the inorganic heat-conducting filler, the metal magnetic powder and other raw materials in proportion, and vacuumizing to obtain a mixed material; injecting the mixed material into a hollow mold under high shear force, and enabling the fiber heat-conducting filler to be oriented along the flowing direction along with the flowing of the matrix resin; the mold is put into a 130 DEG C drying oven to be cured for 10 min, then cutting is conducted in the direction perpendicular to the orientation ...

Concrete pouring device for open-web floor system

The invention provides an open-web floor concrete pouring device, and belongs to the technical field of building construction. According to the technical scheme, the concrete pouring device for the hollow floor system is characterized by comprising a funnel body, bosses are arranged at the four corners of the lower portion of the funnel body, discharging channels communicated with the interior of the funnel body are arranged in the bosses, a vibrating support is arranged in the funnel body, and the vibrating support is connected with the lower portion of the funnel body. Vibrating rods are arranged at the positions, corresponding to the discharging channel, of the vibrating support and can stretch into the discharging channel. The device has the beneficial effects that the four discharging channels and the four discharging pipes are arranged, four shear keys can be grouted at the same time, and vibrating rods moving up and down are arranged in the discharging channels, so that the discharging ...

Self-propelled small preserved szechuan pickle combine harvester

The invention provides a self-propelled small tuber mustard combine harvester, which belongs to the field of agricultural machinery and comprises a wheel type profiling leaf cutting device, a chain type baffle conveying device, crawler wheels, a first chain component, a speed reducer, a power assembly, a rack, a simple collecting box, a second chain component and a reciprocating root cutting device. The power assembly transmits power to an input shaft of the speed reducer through a transmission belt; the wheel type profiling leaf cutting device is arranged on the second rotating shaft; the reciprocating type root cutting device is arranged below and behind the wheel type profiling leaf cutting device, and one end of the reciprocating type root cutting device is connected with the third rotating shaft at a cam; the chain type baffle conveying device is installed on the transmission chain wheel. The simple collecting box is arranged at the conveying terminal of the chain type baffle conveying ...

Application of dihydroquinoline-based near-infrared hydroxyl radical fluorescence probe reagent for preparing tumor diagnosis

The invention provides an application of a dihydroquinoline-based near-infrared hydroxyl radical fluorescent probe reagent for tumor diagnosis. The structural formula of the fluorescent probe is shown in the specification, and the fluorescent probe is applied to preparation of a. OH detection reagent. The preparation method of the near-infrared hydroxyl free radical fluorescent probe based on dihydroquinoline comprises the following step: enabling 3-formyl-1-methylquinoline-1-ammonium iodide, 3, 3 '-((3-acetyl-2-oxo-2H-pyran-7-yl) aza-diacyl) dimethyl dipropionate and sodium hydroxide to react in a protective atmosphere, so as to obtain the near-infrared hydroxyl free radical fluorescent probe based on dihydroquinoline. The invention discloses application of a near-infrared hydroxyl radical fluorescence probe based on dihydroquinoline, and the near-infrared hydroxyl radical fluorescence probe is used for detecting hydroxyl radicals in cells. The near-infrared hydroxyl free radical fluorescent ...