22results about How to "No harm" patented technology

The present application relates to a kind of anticoagulation, anti-oxidative stress hemodialysis apparatus and preparation method, belong to biomedical polymer and hemodialysis field.Oxygen-containing functional group carbon dots, anticoagulation monomer, initiator and crosslinking agent are added into water, to obtain modified liquid of anticoagulation and anti-oxidation;Protective gas is introduced into hemodialysis apparatus to remove oxygen, then modified liquid is introduced into dialysis apparatus, then sealing heating is carried out to initiate anticoagulation monomer in situ polymerization on the surface of dialysis membrane, and the oxygen-containing functional group carbon dots form gel microspheres under the wrapping of polymer, i.e., anticoagulation, anti-oxidative stress hemodialysis apparatus is obtained.The APTT of modified dialysis apparatus can reach 600s, and the removal rate of DPPH and ABTS free radicals is 71.25% and 97.47% respectively.The present application only needs to carry out one-step surface modification to dialysis apparatus finished product, which can give hemodialysis apparatus the dual functions of anticoagulation and anti-oxidative stress, is simple and convenient, and has good application prospect.

This invention relates to a polyester with antibacterial and antiviral functions, its preparation method, and its application. The polyester with antibacterial and antiviral functions is a cationic polymer guanidine salt-supported antibacterial and antiviral polyester. The preparation method includes the following steps: modifying the cationic polymer guanidine salt with a compound containing multiple functional groups to obtain a reactive antibacterial and antiviral adjuvant; during the polymerization of the polyester, adding the reactive antibacterial and antiviral adjuvant, terephthalic acid, diol, and catalyst in a single batch to a polyester reactor to obtain an antibacterial and antiviral random copolyester; or, copolymerizing the reactive antibacterial and antiviral adjuvant with diethyl terephthalate (BHET) to obtain an antibacterial and antiviral copolyester. Compared with the prior art, the polyester obtained by this invention exhibits no dissolution of the antibacterial and antiviral components, uniform dispersion, excellent durability, and good color value in the resulting fiber product.

The application discloses a kind of pure natural demulsification granules preparation method and its application method, comprising the following steps: selecting dry lotus, the lotus is segmented, the segmented lotus is sent into pulverizer and broken into powder, the final powder is screened by screen mesh, the raw material of powder passing through screen mesh is obtained, lotus powder is obtained, finally lotus powder is placed in oven and dried, it is demulsification granule, the method utilizes the composition characteristics of dry lotus powder with oil-water amphiphilic, the hydrophobic part of lotus can be combined with the oil-loving group in surfactant, thereby causing the rupture of emulsion interface, so that oil droplets in rolling oil emulsion cannot be stably dispersed in water phase, the balance of oil phase and water phase in emulsion is destroyed, and finally the effect of demulsification is achieved, and after demulsification is completed, the property of plant granule is not easy to change, even if oscillation, it is also not easy to emulsify again, and the use time of the whole demulsification is shorter, and the solution is stable.

This invention provides a recombinant acetyl-CoA carboxylase encoding gene and its applications. Mutations at positions 5374, 5229, 5335, 5336, and 5493 in the recombinant acetyl-CoA carboxylase encoding gene provided by this invention can induce more significant resistance in rice expressing this recombinant acetyl-CoA carboxylase. In particular, it shows a significant increase in resistance to seven ACCase inhibitors from three major chemically distinct classes: arbutin (APP), quizalofop-P-ethyl, quizalofop-P-ethyl, and flupyrflupyr; cyclohexenone (CHD), clethodim and clodinafop-P-ethyl; and neophenylpyrazoline (DEN), clodinafop-P-ethyl.

The application discloses a method for degrading polyester, and a degraded product and application thereof. The method comprises the following steps: alcoholysis, impurity removal and crystallization treatment of the polyester in the presence of a titanium-containing catalyst to obtain a degraded product. The green and efficient titanium-containing catalyst has high catalytic efficiency, and the depolymerization rate reaches 100%. The polymerization degree of the oligomer in the alcoholysis product is only 1-3. Moreover, the green and efficient titanium-containing catalyst does not contain heavy metals, and is harmless to the environment and human bodies. The catalyst residual amount in the target product is low, and has no influence on the polyester regeneration.

The invention belongs to the technical field of coal mine safety, and particularly relates to a water-based mucus gas inhibitor, a preparation method and an application device.The preparation method of the water-based mucus gas inhibitor comprises the following steps that raw materials are prepared, mixed and stirred, and stored for use; the application device of the water-based mucus gas inhibitor is applied to the water-based mucus gas inhibitor and comprises a preparation device, a conveying device, a spraying device and a pressure injection device. The water-based mucus gas inhibitor disclosed by the invention is a convenient and environment-friendly substance with very small damage to a coal body, can effectively improve the wettability of the coal body, and has the capability of inhibiting desorption of gas in the coal body, and the technology is used for injecting the water-based mucus gas inhibitor into a coal seam before the coal seam is mined, so that dust is removed by improving the wettability of the coal body, and the coal seam is prevented from being damaged. And gas generated in the mining process is inhibited, so that safe production is ensured.

The utility model relates to the technical field of endoscopes, and discloses an endoscope insertion tube and an endoscope, and the endoscope insertion tube comprises a metal elastic layer, a metal braid layer and a self-repairing layer. The self-repairing layer comprises a self-repairing resin layer and a self-repairing coating layer; the self-repairing resin layer is arranged outside the metal braid layer, the self-repairing coating layer is arranged outside the self-repairing resin layer, and the material of the self-repairing coating layer comprises a coating with self-repairing capability. The outer surface of the endoscope insertion tube with the structure is the self-repairing layer, when the outer surface of the insertion tube is scratched or damaged due to improper use of an operator, the self-repairing layer can automatically repair the outer surface of the insertion tube under the conditions of heating, illumination or radiation and the like, the outer surface of the insertion tube is convenient to repair, the repairing cost is low, and the service life of the insertion tube is prolonged. The service life of the insertion pipe can be effectively prolonged; when the outer surface of the insertion tube is damaged, the insertion tube does not need to be replaced, so that the repair and maintenance cost of medical equipment can be reduced.

The application relates to a plastic product injection molding post-processing device and processing technology, which comprises a transfer mechanism for clamping and moving a workpiece and a cooling mechanism for cooling the workpiece and absorbing harmful gas, the cooling mechanism comprises a cooling box with an open upper end and a cooling driving element for absorbing air in the cooling box, an air inlet of the cooling driving element is communicated with the cooling box, and an air outlet of the cooling driving element is communicated with a waste gas treatment device; the transfer mechanism comprises a clamping element clamped on the outer wall of the workpiece and a clamping moving element for driving the clamping element to move, and the clamping element is connected to the free end of the clamping moving element. After the injection molding is completed, the clamping element takes the workpiece out of the mold and moves into the cooling box, the cooling driving element drives air to flow from the surface of the workpiece so as to remove volatile organic compounds on the surface of the workpiece, and the temperature of the workpiece is lowered; after the workpiece is cooled, no volatile organic compounds are generated in the workpiece, and workers are not harmed when the workpiece is moved.

This application relates to a catalytic cracking coke generator, a regeneration system, and a regeneration method. The coke generator, from bottom to top, includes a pre-lifting zone, a reaction zone (either a bubbling fluidized bed or a turbulent fluidized bed), and an outlet zone. The pre-lifting zone is connected to the bottom of the reaction zone and the regenerator, while the top of the reaction zone is connected to the outlet zone. At least one fuel oil inlet is provided at the outlet of the pre-lifting zone or at the bottom of the reaction zone. When the coke generator and system of this application are used in fluidized catalytic cracking reactions with high reaction heat, a coke source can be provided from the reaction system to the regenerator, solving the reaction heat balance problem without affecting the regeneration process and without damaging the physical and chemical properties of the catalyst.

The invention provides a preparation process of a ceramic grinding ball for grinding a battery raw material. The process comprises the following steps: forming a gel system by adopting non-toxic water-borne epoxy resin and water-dispersible polyamine, taking water as a solvent, preparing uniform slurry from ceramic powder, a dispersing agent and the like, performing vacuum defoaming, injecting the slurry into a silicon rubber spherical mold, performing gel curing under mild conditions, drying, and performing program control sintering, thereby finally obtaining the ceramic grinding ball. The ceramic powder is aluminum oxide, zirconium oxide toughened aluminum oxide or aluminum oxide toughened zirconium oxide ceramic powder. Near-net-size forming of the ceramic grinding ball is achieved, the sphericity degree of a green body is good, the surface is smooth and clean, and post-processing is greatly reduced. The process is non-toxic and environment-friendly, contact with metal equipment is avoided, and the metal impurity pollution risk of the product is remarkably reduced. The obtained ceramic grinding ball is high in density, the performance reaches the traditional compression molding level, and the ceramic grinding ball is particularly suitable for the field of high-purity battery material grinding and grinding of other materials sensitive to metal impurities.

The utility model discloses a bird repelling device which comprises a bottom plate installed on a cross arm of a telegraph pole, a connecting plate is installed on the bottom plate, long spine layers and short spine layers are arranged on the connecting plate in the length direction of the connecting plate at intervals, and each short spine layer is located between every two adjacent long spine layers. The long spine layer is composed of a plurality of long spines which are evenly arranged at intervals in the direction perpendicular to the length direction of the connecting plate. The short spine layer is composed of a plurality of short spines which are evenly arranged at intervals in the direction perpendicular to the length direction of the connecting plate. The top of the bird repelling device is of the conical spine structure which simulates wild jujube spines, so that when birds fall on the bird repelling device on a cross arm of a telegraph pole, the birds feel pain caused by the spines and actively fly away from the area, and the conical tips of the tops of the spines are of the smooth structure and do not cause great harm to the birds. Birds are not damaged while efficient bird repelling is achieved, and the situation that the birds generate immune reaction and continue to nest on the telegraph pole cross arm is avoided.

The utility model discloses a laser welding device for automobile part processing, including processing bottom plate, the top fixed connection of processing bottom plate has the removal backboard, the positive surface swing joint of removal backboard has the welding assembly, the top fixed connection of processing bottom plate has the shelter mechanism, the shelter mechanism includes the slide rail, the top slide connection of slide rail has the transmission rod, the back surface fixed connection of transmission rod has the shelter cover, the positive surface of shelter cover is provided with the sunshade, the outside fixed connection of transmission rod has the positioning mechanism, the outside of shelter cover is provided with the purification mechanism, as the utility model preferred, the positioning mechanism includes the positioning rod, the utility model discloses through setting up the shelter mechanism, changed the traditional laser welding device when carrying out the welding operation, will produce the phenomenon of metal scrap to the staff to cause the harm, can to its work area shelter, guarantee when working operation will not cause the harm to the surrounding staff.

The invention discloses a device and a method for measuring aerosol release share and particle size distribution under damage of lead-bismuth fuel. The device comprises a high-pressure gas tank, an aerosol weighing device, a simulation fuel rod, a crevasse sealing device, a collecting device, a wet particle size analyzer, a pipeline valve and a measuring instrument, the high-pressure gas tank is used for providing gas required by the whole device, the aerosol weighing device is used for weighing aerosol powder used in the fuel rod in an initial state, and the simulated fuel rod is designed according to the size and the structure of the real lead-bismuth reactor fuel rod and is used for accommodating high-pressure gas and aerosol and constructing cladding crevices with different shapes and sizes; the crevasse sealing device is used for sealing a crevasse to construct a closed environment in the fuel rod, the collecting device serves as a containing place for aerosol released by the fuel rod to facilitate subsequent sampling measurement, and the wet particle size analyzer is used for measuring particle size distribution of aerosol particles. The device disclosed by the invention can be used for measuring the release share and the particle size distribution of the aerosol in the fuel rod pellet-cladding gap through the cladding crevasse, and can be used for researching the release characteristics of the aerosol under different fission gas pressures and different crevasse sizes and morphologies.

The invention relates to the technical field of coal seam gas extraction, in particular to a coal seam CO2 phase change displacement coupling microbial degradation anti-reflection process method, a device used in the process method comprises an extraction floral tube and a gas online detection module, and a liquid CO2 storage tank is filled with liquid CO2; the biological degradation liquid storage tank is filled with a biological degradation liquid; two input ends of the three-way valve are respectively connected to liquid outlets of the liquid CO2 storage tank and the biological degradation liquid storage tank through pipelines; the input end of the high-pressure pump is connected to the output end of the three-way valve through a pipeline; the liquid injection pipe is arranged in the coal seam drill hole close to the extraction floral pipe, and the outer end of the liquid injection pipe is connected to the output end of the high-pressure pump through a pipeline; a pressure release valve and a liquid flow detection module are mounted on a pipeline between the outer end of the liquid injection pipe and the output end of the high-pressure pump; a pressure detection module and a temperature detection module are mounted on a pipeline between the input end of the high-pressure pump and the output end of the three-way valve; after permeability increasing is conducted on the coal seam through the process method, the extraction efficiency of the coal seam gas is greatly improved.

The application provides a cooling tower with water mist recycling function, which comprises a tower body and a fan arranged near a top air outlet of the cooling tower in the tower body, and an air distributor is arranged at the top air outlet of the cooling tower, dry cold air and wet hot steam in the environment can form staggered spatial distribution through the air distributor, and a mixing net capable of mixing the dry cold air and the wet hot steam in the environment is arranged above the top of the cooling tower, the dry cold air and the wet hot steam in the environment form staggered spatial distribution through the pre-action of the air distributor, the two gases which are originally distributed very close are rapidly mixed after flowing through the fan and under the action of the mixing net, condensation is rapid and sufficient, and large proportion of water is recycled.

The application relates to the technical field of muzzle technology, and particularly discloses a muzzle which can be released by ejection, which comprises a muzzle fixing part, and a muzzle movable part is further installed on the muzzle fixing part; the muzzle movable part is detachably connected to the muzzle fixing part through an ejection mechanism, and the muzzle movable part is an inner recess structure matched with the head of a dog; wherein the ejection mechanism is arranged to facilitate the quick disassembly and assembly between the muzzle fixing part and the muzzle movable part; a binding mechanism is arranged on one side of the muzzle fixing part and used for wearing the muzzle fixing part on the head of the dog; and a surrounding steel sheet is arranged on the outer side of the outer wall of the muzzle movable part and used for increasing the strength of the muzzle movable part. The device provides a quick-response unlocking mechanism, adapts to the use demand of the violent dog in a complex environment, improves the efficiency and safety of task execution, and adopts a voice recognition and button unlocking mode to improve the flexibility of use.

The invention provides a seawater hydrogen production and storage system and a seawater hydrogen production and storage process using offshore wind power. The seawater hydrogen production and storage system comprises a forward osmosis membrane system, a high-pressure reverse osmosis system or electrodialysis system, a two-stage RO membrane system, an EDI ultrapure water system and a hydrogen production and storage system, and the forward osmosis membrane system, the high-pressure reverse osmosis system or electrodialysis system, the two-stage RO membrane system, the EDI ultrapure water system and the hydrogen production and storage system are connected in sequence; the forward osmosis membrane system comprises a forward osmosis membrane and absorption liquid on the inner side of the forward osmosis membrane, and the absorption liquid is selected from a sodium chloride solution with the mass concentration of 3-15%. According to the seawater hydrogen production and storage system, pure water is absorbed through the absorption liquid in the forward osmosis membrane system, redundant seawater can be directly discharged into the sea, the membrane flux is large enough, and the high hydrogen production amount can be achieved.

The invention discloses bacteroides ovatus BL4301 capable of promoting intestinal endocrine cells to secrete GLP-1 and having the effects of reducing weight and reducing blood sugar and application of the bacteroides ovatus BL4301. The bacteroides ovatus BL4301 is preserved in Guangdong Province Microbial Culture Collection Center, the preservation registration number is GDMCC No: 66096, the preservation date is April 3, 2025, and the preservation address is the 5th floor, No. 59 building, No. 100 Courtyard, Xianlie Middle Road, Guangzhou City, Guangdong Province. The bacteroides ovale BL4301 is separated from intestinal flora of healthy crowds in plateau and is an excellent bacterial strain from local sources in China. Compared with chemical drugs for reducing weight and blood sugar in the prior art, the strain has no toxic or side effect on the ecological environment, has no residual risk, and has the characteristics of being green and safe. The strain is convenient to use, has no potential harm to human bodies through safety verification of cells, animals and other levels, has the outstanding advantages of safety and high efficiency, and is convenient to apply.

The application discloses a catheter material for varicose vein closure surgery and a preparation method thereof, and raw materials at least include 100-150 parts of a polymer base material, 10-15 parts of a lubricant and 3-8 parts of a coupling agent in terms of weight. The catheter material is corrosion resistant and has high compatibility with human bodies, can effectively prevent human body fluids and tissue fragments from adhering and immersing into the catheter material, thereby improving the use effect of the catheter material, can prevent the catheter from being touched with human tissues to cause damage, avoids damage to human tissues, can reduce discomfort and inflammatory reactions during use, and can meet the use requirements of clinical surgery.

The invention discloses a seed treatment agent for preventing and treating garlic bulb rot, and belongs to the technical field of agricultural biology. The active ingredients of the seed treatment agent comprise metalaxyl-M, fludioxonil and clothianidin. Metalaxyl-M and fludioxonil are compounded to respectively show extremely high inhibitory activity on two main pathogenic bacteria, namely phytophthora and fusarium, causing garlic bulb rot, and after compounding, antagonism is avoided, so that the metalaxyl-M and fludioxonil can synergistically exert prevention and treatment effects. The treatment agent can be prepared into dosage forms such as a suspended seed coating and the like, and is used for seed dressing or coating treatment of garlic seeds. Field experiments show that the seedling death rate and the bulb rotting incidence rate can be remarkably reduced, yield increase is promoted, and the method is safe to seeds. The invention fills the blank of the special prevention and treatment medicament for garlic bulb rot, and has important application value.

The utility model belongs to the technical field of steel structure welding protection, and particularly relates to a steel structure welding operator protection device which comprises a protection box, round holes are symmetrically formed in the front side of the protection box, protection rings are fixedly installed on the inner walls of the round holes, inserting grooves are formed in the left side and the right side of the protection box, and inserting plates are installed in the inserting grooves in an inserted mode. An arc-shaped cover is rotatably installed at the top of the protection box, an air outlet pipe is fixedly installed on the rear side of the protection box, fan blades are arranged in the air outlet pipe, an inserting groove is formed in the air outlet pipe and located on one side of the fan blades, an inserting plate is installed in the inserting groove in an inserting mode, and an activated carbon filter plate is fixedly installed at the bottom of the inserting plate and located in the inserting groove; sparks generated in the welding process cannot scald people, meanwhile, strong light generated in the welding process cannot puncture eyes of people, the people can conveniently collect and process chippings in a centralized mode, harmful gas generated in the welding process can be filtered, and it is guaranteed that gas generated in the welding process cannot cause harm to the bodies of the people.

The invention discloses a closed circulating cleaning device and method for a tank container, and solves the problems that existing spray cleaning and rotary cleaning methods can cause harm to human bodies and are low in cleaning qualification rate, existing degreasing cleaning, pickling passivation cleaning, tap water flushing and pure water flushing methods are prone to polluting the environment, and the cleaning efficiency is high. And an existing cleaning method has the problem of quality judgment dispute. Each tank body is independently arranged, a mechanical arm is further arranged, a spraying head image collecting mechanism is integrated on the mechanical arm, a measurement and control unit is arranged, corresponding electromagnetic valves are arranged on each pipeline, and the electromagnetic valves are orderly controlled through the measurement and control unit, so that unmanned operation of cleaning of the whole tank bodies is achieved, and no harm is generated to the human body; and the cleaning safety is improved.