76results about How to "Slow release rate" patented technology

The invention relates to a slow-release microbial inoculum and a preparation method and application thereof.Sewage denitrification treatment is achieved through symbiotic coordination among bacillus megatherium, sphingobacterium and bacillus mucilaginosus, a large specific surface area is provided for microorganisms through a special framework carrier, the stability of the microorganisms in the carrier is guaranteed, and the slow-release microbial inoculum is prepared. The embedding medium formed by compounding polyvinyl alcohol, sodium alginate, agar and gelatin provides a stable and low-viscosity film to wrap microorganisms, the release speed of the microorganisms is delayed, meanwhile, the loading success rate of the microorganisms can be increased, part of skeleton carrier components can absorb moisture and expand, the microorganisms are helped to be released, and the stability of the microorganisms is improved. The long-term activity of microorganisms is guaranteed through an appropriate slow-release carbon source, the overall mechanical performance of the slow-release microbial agent is improved through interaction of all the components, the carrier breaking speed is reduced, wetland blockage can be relieved when the slow-release microbial agent is used for a wetland, and the long-term stability of the sewage treatment effect is guaranteed. The preparation process of the slow-release microbial inoculum is simple, and industrial production can be realized.

The invention discloses a water-retaining controlled-release fertilizer and a preparation method thereof, and relates to the technical field of controlled-release fertilizers. According to the invention, the attapulgite is modified by a phosphoric acid solution, so that the surface of the attapulgite has acidic groups, and the groups can be adsorbed with positive ions in the fertilizer, so that nutrients are adsorbed and fixed on the surface of the attapulgite, and the speed of releasing the fertilizer nutrients into a soil solution is delayed; meanwhile, the modified attapulgite and some nutritional ingredients in the fertilizer can form indissolvable compounds, so that the nutrients are slowly released along with gradual dissolution of the compounds, and the fertilizer efficiency of the fertilizer is prolonged; when the modified attapulgite encounters water, the entering speed of water can be effectively slowed down, dissolution of nutrients in fertilizer particles is controlled, and then the slow and controlled release effect is achieved; and the modified attapulgite can regulate the pH value of the soil, so that the soil environment is more suitable for plant growth and slow release of fertilizer nutrients.

The invention discloses a preparation method and application of a nano zero-valent iron-zeolite core-shell structure composite material, and relates to the technical field of nano zero-valent iron composite material preparation. A layer of zeolite core-shell structure is generated on the surface of the nano zero-valent iron to prevent iron oxide from being generated on the surface of nZVI to reduce the reaction activity, and meanwhile, the mass ratio of zeolite / zero-valent iron strongly affects gradual release of Fe < 2 + > in the nano zero-valent iron-zeolite core-shell structure composite material, so that iron core oxidation is slowed down, and the reaction activity of nZVI is improved. The release speed of electrons is also slowed down, the gradually released electrons form a long-time and stable activation effect on persulfate, and the degradation of trichlorophenol can be promoted. According to the preparation method and application of the nano zero-valent iron-zeolite core-shell structure composite material, the nano zero-valent iron-zeolite core-shell structure composite material can be obtained.

The invention provides a preparation process of micromolecular cubilose peptide and a compound tablet thereof, and belongs to the technical field of protein and peptide. The preparation process of the micromolecular cubilose peptide comprises the following steps: freezing and crushing cubilose; and carrying out compound enzyme enzymolysis. The preparation method comprises the following steps: repeatedly freezing and crushing cubilose to prepare cubilose powder, adding the cubilose powder into deionized water, heating and stewing, and adding a compound enzyme formed by mixing neutral protease and flavourzyme for ultrasonic-assisted enzymolysis to obtain the micromolecular cubilose peptide, when the neutral protease and the flavourzyme are mixed according to the mass ratio of 1: (2.8-3.4) to conduct enzymolysis on the cubilose, hydrolysis can be conducted from multiple positions, smaller peptide fragments are formed, the hydrolysis degree is effectively improved, sialic acid originally combined with protein is also released along with hydrolysis of the protein, and therefore the content of sialic acid in the cubilose is increased. Therefore, the content of sialic acid in the prepared micromolecular cubilose peptide can be effectively improved.

The invention relates to the technical field of organic fertilizers, in particular to a long-acting slow-release charcoal-based microbial compound fertilizer and a preparation method thereof. The long-acting slow-release biochar-based microbial organic fertilizer is prepared from the following raw materials in parts by mass: 10 to 20 parts of corn grit, 5 to 10 parts of coated biochar, 1 to 3 parts of monopotassium phosphate, 30 to 40 parts of livestock and poultry manure, 0.001 to 0.01 part of lanthanum ammonium nitrate, 30 to 40 parts of inorganic fertilizer, 0.2 to 0.3 part of microbial agent and 1.5 to 2 parts of epsilon-polylysine, the coated biochar is prepared by the following steps: adding biochar and dopamine hydrochloride into water, mixing, stirring at 30-40 DEG C for 20-30 minutes, adding tris (hydroxymethyl) aminomethane, stirring for 20-30 hours, centrifuging, washing, drying, crushing, feeding into a tubular furnace, keeping the temperature at 300-500 DEG C for 20-40 minutes under the protection of nitrogen, and cooling to room temperature.

The invention discloses a natural antibacterial anti-mosquito fabric and a preparation method thereof. Firstly, a natural antibacterial mosquito-repellent microcapsule is prepared, citronella essential oil, eucalyptus leaf essential oil and mint essential oil are compounded to serve as a core material, Arabic gum / gelatin serves as a first-layer wall material, and beta-cyclodextrin serves as a second-layer wall material. The structure is a double-wall structure, so that the slow release time of effective components can be prolonged, and the action time of a functional fabric finished by the finishing agent is longer. And modifying the natural antibacterial fiber fabric with chitosan quaternary ammonium salt to obtain the modified natural antibacterial fiber fabric with improved antibacterial performance. Finally, the natural antibacterial mosquito-repellent microcapsules are arranged on the modified natural antibacterial fabric, the natural antibacterial mosquito-repellent fabric is prepared, and the natural antibacterial mosquito-repellent fabric has a good antibacterial effect and a good mosquito-repellent effect at the same time, and is long in acting time, green, environmentally friendly, safe and efficient.

The invention discloses a porous ceramic modified water and fertilizer retention material as well as a preparation method and application thereof. The porous ceramic modified water and fertilizer retention material comprises porous ceramic balls and an organic modifier compounded with the porous ceramic balls, the organic modifier comprises one or more of chitosan and hexadecyl trimethyl ammonium bromide; the modified porous ceramic is obtained by selecting the modifier chitosan and / or hexadecyl trimethyl ammonium bromide and blending the components of the porous ceramic, the water and fertilizer retention performance of the porous ceramic is improved, the production cost is reduced, the problems of high cost and difficult degradation of a plant water and fertilizer retention material are solved, the static adsorption capacity on an ammonium nitrogen fertilizer is improved by 60%, and the application prospect is wide. The release speed of the adsorbed fertilizer within 24 hours can be slowed down, and the environment-friendly significance is achieved.

A CDM protection structure of an SOC chip and the SOC chip comprise a wafer and a substrate, a digital ground PAD-DVSS and an analog ground PAD-AVSS on the wafer are connected with a digital circuit and an analog circuit respectively, a radio frequency signal pin PIN-RF is located on the substrate and connected with the analog circuit, an independent pin leads the digital ground and the analog ground to the substrate, an inductor is connected with the digital ground PAD-DVSS and the radio frequency signal pin PIN-RF, and the digital ground PAD-AVSS and the radio frequency signal pin PIN-RF are connected with the digital circuit and the analog circuit respectively. And the CDM discharge path is controlled, and the charge release speed is slowed down, so that the CMOS tube connected with the PIN-RF is protected. The formed ESD protection path provides discharge protection for the analog circuit to ensure that charges in the analog circuit are discharged through the path and charges in the digital circuit are discharged through the inductor. The design of the CDM protection structure improves the CDM protection capability of the chip on the premise of sacrificing small receiver sensitivity, meets the effectiveness and reliability requirements of the JEDEC standard, and reduces the risk of yield reduction caused by CDM failure. Besides a digital-analog hybrid SOC chip, the method is also suitable for a single analog SOC chip.

The invention relates to the field of new biological materials, in particular to a high-packaging-dose antibacterial slow-release biological patch obtained by packaging at least two antibiotics with an acellular matrix material. The acellular matrix material is derived from any two of small intestinal submucosa, peritoneum, dermis, bladder basement membrane and pericardium; the antibiotics comprise hydrophobic antibiotics and hydrophilic antibiotics, and the hydrophobic antibiotics are selected from one or more of Beta-lactam antibiotics, rifamycin and macrolide antibiotics; the hydrophilic antibiotics are tetracycline antibiotics. The coating-free drug-loaded sustained-release system based on a lamination process kills bacteria in a short period, prevents colonization and reproduction of bacteria in a wound / patch, realizes synergistic and continuous release of antibiotics along with a wound healing process, guides tissue regeneration and synchronously realizes degradation, is applied to a high-incidence infection period of a surgical operation, reduces adhesion, and has a good application prospect. The abdominal wall strength is enhanced, and the growth of wound granulation tissues is promoted.

The invention discloses an aminobutyric acid synergistic fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. The synergistic fertilizer comprises the following raw materials in parts by weight: 80-90 parts of fertilizer effect particles and 20-40 parts of a coating solution. The coating solution is prepared by the following steps: adding modified chitosan into an acetic acid solution with the volume concentration of 1%, and uniformly stirring at 300-500r / min to obtain the coating solution, and a preparation method of the modified chitosan comprises the following steps: adding chitosan into a citric acid solution, stirring until the chitosan is dissolved, then adding epoxy chloropropane, stirring at 400r / min for 4 hours, then adding humic acid, and stirring for 0.5 hour to obtain a mixed solution; dropwise adding the mixed solution into a 0.2 mol / L NaOH solution, stirring for 12 hours, eluting residual NaOH in a product with distilled water, drying at 80 DEG C for 12 hours, taking out, and grinding into powder, so as to obtain the modified chitosan. The aminobutyric acid synergistic fertilizer prepared by the invention has excellent slow release performance.

The invention discloses humic acid-based coated slow-release potassium chloride and a preparation method thereof, and belongs to the technical field of biological slow-release organic and inorganic fertilizers. The fertilizer comprises the following raw materials in parts by weight: 40-55 parts of potassium chloride, 6-8 parts of humic acid, 6-9 parts of urea, 0.5-0.8 part of trace elements and 3.5-5.5 parts of a slow-release porous coating material. According to the invention, ethylenediamine and maleic anhydride are used as raw materials to prepare a functional monomer containing carboxyl and amino groups at the same time, an effective coating material enables the potassium fertilizer to release potassium ions in soil more slowly and uniformly, and the utilization efficiency of potassium is improved. The sustained-release potassium chloride disclosed by the invention has an extremely strong potassium chloride sustained-release effect on one hand, provides sufficient potassium for crops, and can effectively regulate the ecological activity of soil and improve the utilization rate of the potassium on the other hand.

The invention discloses a nicotine hard candy and a manufacturing method thereof. The nicotine hard candy comprises the following raw materials in parts by mass: 1-9 parts of a nicotine active material; 1-2 parts of a green tea extract; 1 to 2 parts of microencapsulated capsaicin; 5-15 parts of a first sweetening agent; and 60-80 parts of a carrier material. The nicotine hard candy can effectively inhibit appetite and control body weight.

The invention provides a fruit growth regulator and bacteriostatic preservative as well as a preparation method and application thereof, and belongs to the technical field of preservation, pomace is taken as a raw material, and pomace microfibrillated cellulose, pectin and seed oil containing phenolic substances are extracted through organic acid treatment, DES reagent auxiliary mechanical treatment, ethanol water treatment and other treatments; then carrying out hydroformylation modification on nano cellulose, grafting chitosan, and compounding with pectin to obtain dialdehyde microfibrillated cellulose-chitosan-pectin composite particles with pH response performance, and taking the dialdehyde microfibrillated cellulose-chitosan-pectin composite particles as a stabilizer of a Pickering emulsion; the green growth regulator solution is used as a continuous phase, the seed oil mixed Chinese herbal medicine extract is used as a dispersion phase, the controlled-release Pickering emulsion with growth regulation and bacteriostasis effects is prepared, the prepared emulsion is sprayed on berries to form a film layer, the growth process of the berries can be regulated, the fruit yield and quality are improved, and the quality of the berries is improved. And antibacterial substances can be slowly released for preservation when berries are picked and stored.

The utility model discloses a wind turbine gearbox gear lubricating device which comprises a gearbox, an oil cylinder is installed at the top end of the gearbox corresponding to a driven wheel, an opening of the oil cylinder is sealed through a sealer, the sealer is installed inside a first supporting piece in a sliding mode and can be reset through a reset device, and the sealer is connected with an electric push rod. The output end of the electric push rod penetrates through the second supporting piece to be connected with a third supporting piece, and the second supporting piece is connected with one end of the driven wheel through a driving assembly. The driving assembly drives the second supporting piece to move, and the second supporting piece pulls the third supporting piece to be matched with the electric push rod to drive the sealer to move; and the opening of the oil cylinder can be opened and closed, so that lubricating oil in the oil cylinder can drop onto the driven wheel, and the driven wheel and the driving wheel are lubricated along with rotation.

The invention provides a spirotetramat polyurethane / polyurea microcapsule suspending agent as well as a preparation method and application thereof, and belongs to the technical field of pesticide preparations. The preparation method comprises the following steps: mixing an oil-phase solution containing spirotetramat raw medicine and polyisocyanate with a water-phase solution containing an emulsifier and a dispersant, carrying out shear emulsification, adding a water-soluble wall material monomer water solution containing polyamine and / or polyol, and carrying out an interfacial polymerization reaction; after the polymerization is finished, sequentially carrying out curing treatment and cooling, then adding an auxiliary agent, and blending to obtain the spirotetramat polyurethane / polyurea microcapsule suspending agent. The spirotetramat microcapsule suspending agent is prepared through an interfacial polymerization method, spirotetramat is coated in a polyurethane or polyurea capsule wall, and the spirotetramat microcapsule suspending agent has the advantages of being high in encapsulation efficiency, good in physical and chemical stability, long in pesticide effect lasting period, safer to non-target organisms (such as bees) and the environment and the like. The preparation method is stable in process, easy for industrial production and excellent in product performance.

The invention relates to the technical field of high polymer materials, in particular to a preparation method of antibacterial hydrogel for infectious diabetes wound healing, chitosan and tobramycin are used as dynamic physical cross-linking agents, and the hydrogel is prepared through free radical polymerization of N-acryloyl triester (hydroxymethyl) aminomethane and acrylic acid under the irradiation of an ultraviolet lamp. Through electrostatic interaction between carboxyl of the copolymer and amino of the tobramycin, the tobramycin is incorporated into a hydrogel network, so that the mechanical strength is increased, and drug release is controlled. Chitosan exists as another cross-linking agent, so that the mechanical strength of the hydrogel can be adjusted. The hydrogel has an easy-to-synthesize process and sufficient mechanical strength and adhesion, and has the potential of providing a promising and practical combined treatment method for effectively treating chronic infectious diabetes wounds.

The invention discloses a semeglutide-containing NPs hydrogel and a preparation method thereof, and relates to the technical field of polymer composites.The semeglutide-containing NPs hydrogel comprises a main drug, polylactic acid nanoparticles, dodecyl modified hydroxypropyl methyl cellulose and PBS; wherein the polylactic acid nanoparticles are prepared by wrapping graphene with polyethylene glycol-polylactic acid, the main drug is semeglutide, and the concentration of the semeglutide in the hydrogel is 2-20 mg / ml. The polylactic acid nano-particles and the dodecyl modified hydroxypropyl methyl cellulose comprise the following components in percentage by weight: 1-2wt% of the dodecyl modified hydroxypropyl methyl cellulose and 10wt% of the polylactic acid nano-particles; the long-term sustained and controlled release effect can be realized; and the degradation speed of the nanoparticles coated with the graphene oxide is inconsistent with that of the nanoparticles not coated with the graphene oxide, so that the release speed of the medicine can be further controlled.

The invention discloses a preparation method and application of Chinese chestnut powder with a low glycemic index, and belongs to the technical field of Chinese chestnut powder processing.The preparation method comprises the following steps that fresh raw Chinese chestnuts are subjected to shelling, dehulling and crushing treatment, and Chinese chestnut thick slurry precipitates are extracted through alkaline treatment; putting the chestnut thick slurry precipitate into a drying oven for drying treatment, and then grinding and screening to obtain chestnut starch; adding pure water into the obtained Chinese chestnut starch to prepare starch milk; adding lipase with a specific concentration into the starch milk in a coupling manner, and treating under a plasma micro-jet working condition to obtain Chinese chestnut starch milk; and performing ultrasonic treatment on the prepared Chinese chestnut starch milk, and then performing drying, grinding and screening treatment to obtain the finished product Chinese chestnut powder with the low glycemic index. The prepared Chinese chestnut powder has a low glycemic index, and meets the requirements of diabetic patients, obese people and people with special requirements.

The invention discloses a method for promoting flower growth by using an acetylisovaleryltylosin tartrate finished product liquid fertilizer, and relates to the technical field of fertilizer preparation, and the method comprises the following specific steps: step 1, firstly, screening out 1-ethyl-3-methylimidazolium acetate ionic liquid for subsequent treatment, the preparation method has the advantages that the polylactic acid is selected as a microcapsule wrapping material, so that the acetylisovaleryltylosin tartrate can be tightly and stably wrapped, an effective protective barrier is constructed, the influence of external adverse environmental factors on the acetylisovaleryltylosin tartrate is isolated, the activity of the acetylisovaleryltylosin tartrate is powerfully guaranteed to be maintained in the storage and subsequent application process, and the stability of the acetylisovaleryltylosin tartrate is improved. The temperature-sensitive hydrogel prepared from poly (N-isopropylacrylamide) is used as an intelligent response material, the temperature-sensitive characteristic of the temperature-sensitive hydrogel is the key point for realizing intelligent regulation and control, and the hydrogel presents obviously different states at different temperatures, so that the scientificity and accuracy of fertilization are greatly improved, and the application prospect is wide. The flower can obtain proper nutrient supply in different growth stages.

The invention discloses a marine square pile with an anti-erosion structure, which is applied to the field of concrete building materials, and realizes that when metabolite of marine organisms excessively erodes an anti-erosion column, the anti-erosion column can be locally stripped, so that the marine organisms and the local part of the anti-erosion column are integrally separated from the anti-erosion column; the anti-erosion column and the square pile body are prevented from being excessively eroded by marine organisms, the structural strength of the square pile body is not prone to being affected, meanwhile, after the anti-erosion column is locally stripped, seawater flows into the anti-erosion cavity to dissolve the filling salt block, and under the effect of a relatively-closed three-dimensional space structure formed by the elastic fibers, the anti-erosion column and the square pile body are separated from each other. The release speed of high-salinity seawater dissolved with filling salt blocks is greatly slowed down, high-concentration salt water is released for a long time at stripped notches, marine organisms are repelled, excessive biological erosion is prevented from being locally generated on the anti-erosion column, and the anti-erosion column is not prone to failure in advance.

The utility model discloses a safety pressure relief valve structure of a high-pressure storage tank of a hydrogen energy storage system. The safety pressure relief valve structure comprises a pressure relief valve shell, a pressure relief valve element and a pressure relief valve body which are sequentially connected to form a pressure relief channel. A through opening is formed in the end, connected with the pressure relief valve element, of the pressure relief valve shell, and a plugging block pressed at the through opening through a spring is arranged in the pressure relief valve element. A sealing groove is formed in the pressure relief valve body, a plurality of graphite rings are arranged in the sealing groove, honeycomb holes communicated with the sealing groove are further formed in the pressure relief valve body, and pressure relief holes communicated with the honeycomb holes are formed in the tail end of the pressure relief valve body. According to the safety relief valve structure of the high-pressure storage tank of the hydrogen energy storage system, a main sealing interface is formed by the plugging block pre-tightened by the spring and the through opening, a labyrinth type sealing path is formed in cooperation with the staggered notch of the graphite ring, double-sealing protection is achieved, the sealing position of the plugging block can be adjusted in a self-adaptive mode along the guide sliding groove when pressure fluctuates, the contact pressure of the sealing face is effectively balanced, and the safety of the high-pressure storage tank of the hydrogen energy storage system is improved. The sealing reliability under the long-term high-pressure working condition is remarkably improved, and leakage of trace hydrogen is avoided.

The application relates to an antibacterial agent and a preparation method thereof, a powder coating, a product with antibacterial function and a preparation method thereof. The antibacterial agent comprises an inorganic carrier and silver ions, copper ions and third metal ions supported on the inorganic carrier; the third metal ions comprise one or more of nickel ions, titanium ions, manganese ions and zinc ions; the content of the silver ions is greater than the content of the copper ions and greater than the content of the third metal ions. In the antibacterial agent, the silver ions play a main antibacterial role, the copper ions are used for reducing the silver ions, the state of the silver ions is protected, the third metal ions increase the number of additional exchangeable cations, the release speed of the silver ions is delayed, and the copper ions are matched to improve the durability of the antibacterial effect of the silver ions.

The invention provides a treatment device and method for recycling fly ash and sludge through collaborative ultrahigh-temperature melting, and relates to the technical field of incineration of fly ash and sludge, the treatment device comprises a fly ash and sludge pretreatment unit, a melting gasification unit and a gas treatment unit, and the fly ash and sludge pretreatment unit is used for pretreating fly ash and sludge; the waste derived fuel is pressed into spherical or blocky waste derived fuel; the melting gasification unit comprises a conveying system and a melting gasification furnace, a depressurization expansion bag is arranged at the top of the melting gasification furnace, and the melting gasification furnace utilizes constant-speed and quantitative high-temperature spiral airflow to meet the requirement for redox of waste derived fuel; the gas inlet end of the gas treatment unit is connected with the depressurization expansion bag, and the gas treatment unit comprises a Brown type fluid high-temperature heating and cooling waste gas treatment device connected with the melting gasification furnace; according to the method, the fly ash and sludge treatment effect is remarkable, near-zero emission of waste gas, waste liquid and waste residues can be achieved, resource reutilization can be achieved, and energy conservation and environmental protection are achieved.

The invention relates to the technical field of traditional Chinese medicine composition production, in particular to a traditional Chinese medicine composition for rapidly relieving renal colic and a preparation method thereof. Comprising the following components in parts by weight: 10-30 parts of lysimachia christinae hance nanoparticles, 6-16 parts of rhizoma corydalis, 8-18 parts of radix paeoniae alba, 5-15 parts of endothelium corneum gigeriae galli, 8-18 parts of rhizoma alismatis, 5-10 parts of lygodium japonicum, 2-8 parts of beta-cyclodextrin, 0.5-1.5 parts of a poloxamer surfactant and 2-8 parts of sodium carboxymethyl cellulose. According to the invention, flavonoid glycoside in lysimachia christinae hance is extracted, glycosylated and emulsified into nano-particles, so that the absorption and utilization rate of flavonoid glycoside in a body are improved, and the drug effect of flavonoid glycoside is improved. Beta-cyclodextrin and sodium carboxymethyl cellulose are adopted as carriers, the release speed of the traditional Chinese medicine composition can be regulated and controlled, the release speed of components is slowed down to a certain degree, and the medicine can continuously play a role in the body.

The invention provides a shellac-based oligosaccharide plant growth regulator which can delay the degradation rate of oligosaccharide and slowly release the oligosaccharide. The delivery system is composed of shellac and oligosaccharide, the shellac serves as a carrier, and the oligosaccharide serves as a loading substance. The shellac can be subjected to chemical group modification so as to improve the biocompatibility and targeting property of the shellac. Groups such as oligosaccharide hydroxyl and amino are combined with hydroxyl of shellac through hydrogen bonds and the like to form a stable oligosaccharide-shellac compound, so that the activity stability of oligosaccharide can be improved, a slow-release effect is provided, plant growth is promoted, and the yield and quality are improved.

The invention belongs to the technical field of cable take-up and pay-off equipment, and discloses cable take-up and pay-off equipment and a walking robot. The cable take-up and pay-off equipment comprises a cable reel, a driving device and a cable state detection device. And the cable reel rotates to wind or release the cable. And the driving device drives the cable tray to rotate. The cable state detection device is located on the downstream of the cable reel in the cable releasing direction and comprises a guide roller, a swing connecting structure and an angle detection structure. A cable extending out of the cable reel extends and penetrates through the cable state detection device, and the angle detection structure can detect the swing position of the swing connection structure. When the cable is in a loose state, the swing connecting structure swings to a first position, and the cable tray reduces the release speed of the cable; when the cable is in a straightened state, the cable abuts against the guide roller, the swing connecting structure swings to the second position, and the cable reel releases the cable at the current speed. The cable take-up and pay-off equipment can avoid cable accumulation or cable tensile fracture, and the moving process of the walking robot and the cable take-up and pay-off process are balanced.

The invention belongs to the technical field of coal mining, and particularly relates to a coal cutter coal cutting speed control system and method based on a comprehensive detection signal, and the method comprises the steps: arranging sensor modules at an air inlet crossheading, a working face support, a coal cutter, a working face upper corner and an air return crossheading; acquiring sensing data of each sensor module in real time, and judging whether the walking speed and the cutting speed of the coal mining machine need to be changed or not; when the walking speed and the cutting speed of the coal mining machine need to be reduced, sensing data of all the sensor modules are input into the first machine learning module in real time, the cutting speed and the walking speed value are output through the second machine learning module, and when the walking speed and the cutting speed of the coal mining machine need to be increased, the second machine learning module outputs the cutting speed value and the walking speed value. And sensing data of each sensor module are input into a second machine learning module in real time, and cutting speed and walking speed values are output through the second machine learning module. The control precision of the walking speed and the cutting speed of the coal mining machine is improved.

The invention relates to a chinlon spandex cool-feeling quick-drying comfortable fabric and a preparation method thereof, and relates to the technical field of textile fabrics, the preparation raw materials comprise the following components by mass: 59-67% of chinlon fiber, 27-39% of spandex fiber, 1-3% of a cool-feeling auxiliary agent, and 1-3% of a quick-drying auxiliary agent. The preparation method comprises the following steps: dissolving polyamide fibers in a mixed solvent of trifluoroethanol and formic acid to obtain a polyamide fiber solution, dissolving spandex fibers in N, N-dimethylformamide to obtain a spandex fiber solution, mixing the polyamide fiber solution and the spandex fiber solution, adding a cool feeling auxiliary agent and a quick-drying auxiliary agent, stirring to obtain a spinning solution, and spinning the spinning solution to obtain the cool and quick-drying fabric. Performing solution spinning on the spinning solution to obtain spinning fibers; weaving the spinning fibers to obtain a fabric, performing after-treatment on the fabric, washing with water, and airing to obtain the nylon / spandex cool quick-drying comfortable fabric. The nylon spandex fabric has the effects of improving the cool feeling performance, the quick-drying performance and the anti-static performance, and the fabric is soft, skin-friendly and comfortable to wear.

The present invention discloses a method for preparing a nutrient-loaded biochar slow-release natural polysaccharide mulch film material. Urea is loaded onto biochar by a vacuum adsorption method, and enteromorpha polysaccharide is extracted from enteromorpha by an alkali extraction and alcohol precipitation method. Then, the urea-loaded biochar is blended with enteromorpha polysaccharide / konjac glucomannan solution to obtain a film-forming liquid. The film-forming liquid is subjected to film casting and drying to obtain a nutrient-loaded biochar slow-release natural polysaccharide mulch film material. The natural polysaccharide mulch film prepared by the present invention using biochar as a fertilizer carrier has the advantages of slowing down the nutrient release rate and improving the nutrient utilization efficiency. The prepared mulch film material has low cost, simple preparation process, easy biodegradability, good environmental benefits, and can realize the high-value utilization of biomass materials such as plant polysaccharides and marine polysaccharides and the sustainable development of green agriculture.

The utility model relates to the technical field of pipeline anti-corrosion detection, in particular to a cathodic protection data recorder which comprises an external component, a reference electrode sensor component is clamped at one end of the external component, an internal component is mounted in the external component, the external component comprises a handheld handle shell, and the handheld handle shell is connected with the reference electrode sensor component. A detection shell is welded to the top of the handheld handle shell, operation keys are embedded in the outer wall of the detection shell, and a measuring meter pen is installed in the handheld handle shell. According to the improved cathodic protection data recorder, the detection probe made of a special slow-release ceramic material is used for performing slow-release operation on an internal copper sulfate solution, so that the situation that copper sulfate is released too quickly to pollute the surrounding environment is avoided, the service life of the detection probe is prolonged, and the effect of pipeline anti-corrosion detection operation is improved; meanwhile, the detection probe and the mounting clamping plate are integrally mounted in a threaded connection and matched clamping manner, so that the probe can be independently replaced after copper sulfate is emptied, and the pipeline corrosion prevention detection cost is reduced.