157results about How to "Simple technical operation" patented technology

The invention discloses biomedical polysaccharide hemostatic and healing sponge and a preparation method thereof, and belongs to the technical field of medical materials. The preparation method comprises the following steps: firstly, dissolving a polysaccharide material carboxymethyl cellulose, hyaluronic acid or a mixture thereof into an alkaline solution, stirring sufficiently, and swelling into colloid; secondly, adding a crosslinking agent into the colloid, stirring sufficiently, incubating into uniform gel, and dialyzing and purifying the obtained gel; thirdly, adding glycerin into the purified product, stirring at a high speed for bubbling, and pouring into a lyophilizing disk; and finally, performing freeze drying at a low temperature to obtain dehydrated sponge. The hemostatic and healing sponge prepared with the method is good in flexibility, do not drop crumbs, is strong in liquid absorption, can provide a wet environment to a wound, is non-stick to the wound, is good in biocompatibility, is qualified in heavy metal detection and endotoxin detection, is non-cytotoxic in a bio-safety test, is free of intradermal irritation and sensitization response, and has the functions of stopping bleeding rapidly, absorbing exudate and promoting wound healing.

The invention relates to an air cleaning agent and a preparation method thereof, and belongs to the technical field of environmental protection. The air cleaning agent comprises a globular carrier and a reactive metal or reactive metal oxide, wherein the globular carrier is a flower-ball-shaped rare-earth oxide, the globular carrier is composed of sheet petals by interweaving, and the reactive metal or reactive metal oxide is attached on the petal gaps of the globular carrier and the outer-layer petals. The air cleaning agent provided by the invention has the advantages that the air cleaning effect under the normal temperature is greatly improved, the air cleaning agent has the good catalytic activity, and the air cleaning speed is greatly improved; compared with the existing catalyst, the service life of the air cleaning agent is prolonged more than ten times, the air cleaning cost is reduced, and the air cleaning agent has the good antibacterial effect and has the good killing action on the common germs and viruses; the technology of the preparation method is mature, the technology and the operation are easy to control, the distribution of a microstructure of the cleaning agent is uniform, and the productive rate is more than 80%.

The invention relates to a method for aseptically producing miniature seed stems of common bletilla pseudobulb seeds. The method comprises the following steps of disinfecting the common bletilla pseudobulb seeds; germinating the seeds on a germination culture medium; inducing the seeds to root; and inducing artificial seed stems to form, grow and mature and the like. According to the method, technical routes and key technologies from the step of germinating the common bletilla pseudobulb seeds to the step of forming the mature seed stems are optimized and proposed, and a technology of culturing common bletilla pseudobulb tissues can be simplified, so that the common bletilla pseudobulb seeds are directly are bred in a large scale, and the common bletilla pseudobulb seed stems are produced. The germination rate of embryo seeds reaches more than 95 percent, and more than 80 percent of tissue culture seedlings can form mature miniature seed stems. According to the method, the difficulty that the common bletilla pseudobulb seeds rarely germinate under natural conditions is overcome, and the defects that the survival rate of transplantation of the seedlings in the conventional common bletilla pseudobulb tissue culture and seed aseptical breeding is low and the like are overcome. A feasible practical technology is provided for quickly producing a great amount of seed stems in factories by means of the common bletilla pseudobulb seeds, the current situation of the shortage of the seed sources of common bletilla pseudobulb can be alleviated, and large-scale artificial cultivation of the common bletilla pseudobulb is promoted.

The invention discloses an anti-liquefaction three-dimensional drainage rigid pile and a construction method thereof. Multiple grooves are vertically formed in the side surface of the rigid pile; vertical drainage bodies are arranged in the grooves; multiple grooves are transversely formed in the side surface of the rigid pile; transverse drainage bodies are arranged in the grooves; the depths of the vertical grooves and the vertical drainage bodies can reach the bottom of a liquefied soil layer; and the transverse grooves and the transverse drainage bodies are arranged on a pile body in a range of the liquefied soil layer. The vertical drainage bodies and the transverse drainage bodies are fixed in the grooves; and layers of steel wire meshes cover the surfaces of the drainage bodies.

The invention discloses an information recommendation method, a server and a storage medium. The method comprises the following steps: obtaining the browsing duration and the clicking frequency of recommended information in a first time period, determining the putting probability of the first information in a second time period according to the browsing duration and the clicking frequency of the first information in the recommended information, and putting the first information according to the putting probability in the second time period. According to the embodiment of the invention, the user delivery recommendation accuracy of the advertisement information can be improved. The information resources are reasonably distributed.

The invention discloses an artificial large-scale armyworm culture method. The method comprises the steps of A, egg mass collection and larva hatch, B, 1-3 age larva feeding, C, 3-5 age larva feeding,D, 5-6 age larva feeding, E, pupation and pupa feeding and F, adult eclosion, mating and spawning. An inventor has been committed to research on the biological nature, predatory function and artificial feeding of natural enemy insects for a long time, under the weather of heavy rain, high humidity and insufficient illumination in Suiyang County of Guizhou province, large-scale armyworm feeding isachieved, the yearly yield reaches 20 million or above, Arma chinensis and Picromerus lewisi Scott in Suiyang County are fed with armyworms, and the Arma chinensis yield reaches one million or aboveand Picromerus lewisi Scott yield reaches 400 thousand or above; the achievement of the natural enemy insects is guaranteed.

The invention discloses an edgeworthia chrysantha lindl softwood cutting propagation method which comprises steps as follows: (1) stumping of a scion mother tree is rejuvenated; (2), the cutting time is determined; (3), 100 mg of naphthylacetic acid is firstly dissolved in 20 ml of ethyl alcohol with the volume concentration of 95%, water is added until the volume of the mixture is 1 kg, the mixture is uniformly mixed, 5 g of vitamin B12 is added, and a rooting agent is prepared; (4), perlite, vermiculite, rice husk and peat are mixed according to the volume ratio of (1: 1:1:1)-(1:2:1:1) to prepare a cutting medium, 50% carbendazol wettable powder diluted for 800 times is sprayed on the cutting medium to sterilize the cutting medium; (5), cuttings are prepared; (6) cutting treatment and cutting are performed; and (7) management and transplantation after cutting are performed. According to the edgeworthia chrysantha lindl softwood cutting propagation method, the rooting percentage of cuttings is higher than 95.0%; and the method is simple and convenient to operate, has the advantages of low cost, easiness in popularization and application and the like, and has important application and popularization values on large-scale production of edgeworthia chrysantha lindl seedlings.

The invention provides an integrated method for producing organic selenium enriched rice. The integrated method is characterized by specifically comprising the following steps: selecting seeds; preparing a rice field; accurately sowing seeds; managing a land for growing field crops; and harvesting, transporting, storing and treating by-products. The production of the organic selenium enriched rice is finished through the steps. The integrated method has the beneficial effects that the content of selenium in the rice can be quantitatively controlled and the requirements of different consumer groups are met. The content of the selenium in the rice can determined to a certain specific value of 0.04-0.3mg/kg in national standards through adjusting the unit use amount of a selenium enriched slow release fertilizer according to the content of the selenium in soil, so that the selenium enriched rice with different selenium contents is developed, the requirements on different selenium supplementing amounts of special consumer groups, such as women, children, old people or patients are met, and the quantification and functionalization of selenium supplementation are realized.

The invention relates to a technology for preventing and controlling the growth of water sprouts of bananas by adopting chemical substances in proper quantity, which comprises the following operation methods that for banana water sprouts with different varieties and sizes, a sharp knife is used for cutting off the water sprouts to be flush with the ground, and a writing brush is used for smearing flumetralin liquid medicine on the cross sections of the water sprouts; or a hole puncher is used for downwards pressing the cross sections of the water sprouts from the middle parts to take out water sprout tissues to enable the middle parts of the water sprouts to form small holes, then an injector without a needle head is used for sucking flumetralin liquid medicine or diluent of the flumetralin liquid medicine, and the flumetralin liquid medicine in proper quantity is filled into the small holes of the water sprouts.

The invention discloses a domestic garbage treatment method and relates to the technical field of solid waste disposal. The domestic waste treatment method includes the following steps: S1, pretreating the domestic waste, breaking the bagged waste in the domestic waste, and stacking the broken bag in a fermentation tank; S2, fermenting The garbage accumulated in the tank is covered with a layer of expanded polytetrafluoroethylene composite film to form a closed space. Under aerobic conditions, aerobic bacteria are used for 14 to 17 days of static aerobic fermentation to reduce the moisture in domestic garbage. to 30% to 35%; S3, performing primary sieving treatment on the domestic garbage after aerobic fermentation in the step S2 to obtain the first-level sieve and the first-level sieve, and the first-level sieve The material and the undersize of the primary sieve are recycled separately. The beneficial effect of the invention is that the domestic waste can be decomposed and dried at low cost, the water content in the domestic waste can be reduced, the process is simplified, and the system investment and operation cost are reduced.

The invention provides a method for preparing efficient clinical-level CD 56<+> group immune cell. The method comprises the following steps: a) separating single karyocyte from peripheral blood or umbilical cord blood; b) inoculating the single karyocyte in the step a) to an anti-CD16 antibody-coated culture dish; c) adding rabbit-anti-human thymic cell immune globulin, Lifein and animal origin-free cytokine in the culture dish for inducing and stimulating the single karyocyte inoculated in the step b); d) supplementing the culture dish and the animal origin-free cytokine according to the cells counting results every 2-3 days; and e) obtaining the CD 56<+> group immune cell. The method can reduce the cost, accords with the requirement of clinical-level preparation, and has good killing activity in vitro and vivo.

The invention provides a PM2.5 and ozone collaborative management and control area identification method and device, and the method comprises the steps of dividing a to-be-monitored place into at least one unit monitoring area, and determining an air quality collection point in the unit monitoring area; collecting the air substance concentration of the unit monitoring area at the air quality collection point; drawing an ozone EKMA curve graph and/or a PM2.5 concentration distribution graph corresponding to the unit monitoring area based on the air substance concentration; and according to the ozone EKMA curve graph and/or the PM2.5 concentration release graph, determining the type of the air management and control area of the unit monitoring area. According to the invention, the supervision area of the to-be-monitored place can be quickly identified, and the factors causing the increase of the air pollutant concentration of the to-be-monitored place can be accurately positioned, so that the problem of ozone and PM2.5 is solved, and a management and control direction is provided for improving the air quality.

The invention provides a technology for obtaining peach embryo aseptic seedlings on a large scale, and belongs to the technical field of plant biology. The technology includes the steps of culture medium preparation, peach fruit washing, surface steeping and sterilizing, seed separation, gradient H2O2 solution soaking, sterile water flushing, kernel separation and inoculation, low-temperature processing, room temperature seedling emergence, and the like. The gradient H2O2 solution soaking of seeds serves as the innovative technology characteristic. According to the technology, peroxidase in seed coats and endosperm reacts with H2O2 to release reactive oxygen so that microorganisms possibly carried by the seeds can be killed, and meanwhile the gradient H2O2 solution soaking is beneficial to separation of seed coats and kernels. The technology is easy to operate, high in safety, beneficial for conducting large-scale seed sterilization and seed coat and kernel separation of peach embryo culture on a large scale, the contamination rate is decreased, the inoculation efficiency is improved, and a new method is provided for obtaining the peach embryo aseptic seedlings on a large scale.

The invention relates to a rapana venosa offspring seed cultivation method. The concrete cultivation steps are as follows: seedling preprocessing by using of water; animal bait cultivation, parent rapana venosa spawning and incubation; larva cultivation; and juvenile rapana venosa and larva rapana venosa cultivation. According to the rapana venosa offspring seed cultivation method, larval metamorphosis rates, juvenile rapana venosa and larva rapana venosa survival rates and growth rates, and seedling emergence amounts per unit of water body can be significantly improved, and the problem of bait supply and sources in rapana venosa manual offspring seed cultivation is solved. The rapana venosa offspring seed cultivation method is suitable for rapana venosa productive manual offspring seed cultivation, and a new method is supplied to rapana venosa large-scale offspring seed cultivation.

The invention provides a log high-pressure vacuum treatment device and a log high-pressure vacuum treatment method. The device comprises a gas suction disc device, a first stainless steel pipe, a second stainless steel pipe, a first rubber pipe, a second rubber pipe, a first valve, a second valve, a temperature sensor, a first barometer, a second barometer, a data measurement recorder, a vacuum pump, a vacuum buffering tank, and a steam generator. The gas suction disc device is composed of a first conical stainless steel tank, a second conical stainless steel tank, a first larger small head rubber sleeve, a smaller small head rubber sleeve, and a hoop device. The invention also provides a log high-pressure vacuum treatment method which is a method for carrying out high-pressure vacuum treatment upon log by using the log high-pressure vacuum treatment device. According to the device, the conical suction disc device can be adapted to wood diameter grade change. Devices on two ends of a log are not integral, such that the device can be adapted to requirements of logs with different lengths. With the device, logs with different sizes can be treated, such that a problem of the limitation of processible log size is solved.

The invention discloses a heavy metal contaminated soil degradation harmless treatment method which comprises the following steps: S1, detecting and analyzing heavy metal contaminated soil, and determining the dosage of a heavy metal contaminated soil degradation repairing agent; S2, preparing the heavy metal contaminated soil degradation repairing agent; S3, leaching; S4, applying the heavy metal contaminated soil degradation repairing agent, and performing ploughing and mixing; S5, planting plants which are suitable for local growth and have enrichment capacity; and S6, detecting until the heavy metal content in the soil reaches the safety standard. Harmless treatment of the heavy metal contaminated soil is achieved, and the requirements of resource utilization, soil replacement and landfill are met; the technology application range is wide, and the method is suitable for remediation of various soils contaminated byheavy metals,including chromium, hexavalent chromium, lead, zinc, copper, chromium, nickel, mercury, arsenic and the like; the technical operation is simple and convenient, the repairing time is short, the capacity increase is less, secondary pollution is avoided, and the cost is lower; and the resource utilization of the polluted soil can be realized, and the repaired soil is suitable for various purposes.

The invention provides a planting and breeding combined ecological breeding method for vegetable field toads. The method includes the steps that vegetable field edge soil slopes are arranged at the edges of a vegetable field; furrowing and ridging are carried out in the vegetable field, wherein all furrows between ridges are communicated with vegetable field edge furrows; crops are planted on the ridges, water is poured into the furrows,toadlets are put into the furrows to be bred, trapping lamps are arranged on the ridges, and earthworms are placed on the ridges to feed toads. By means of the planting and breeding combined ecological breeding method for vegetable field toads, the problem that when a traditional toad breeding method is adopted or only crops are planted in a vegetable field, the income is low is solved; in combination with current ecological, economic and social development demands, the cultivated land resource is fully utilized, and the farmland environment is improved; meanwhile, the input of pesticide and chemical fertilizer can be reduced, the quality of agricultural products can be improved, and the purpose of gaining profits many years with one-off investment can be achieved. The method has the advantages that economic and ecological benefits are high, management is easy and convenient, and technical operation is easy to master, and thus the method is worthy of application and popularization.

The invention belongs to vegetable seedling culture and particularly provides a vegetable seedling culture medium and preparation and application thereof. The vegetable seedling culture medium is prepared from a cotton seed hull waste mushroom material, vermiculite, a microbial quick decay agent, bio-organic fertilizer, three-element composite fertilizer and the like through the steps of raw material treatment, composting sterilization, medium compounding and the like. The technical problems that the waste mushroom material contaminates the environment, and water and soil loss is caused by the large turf use amount in the prior art are effectively solved. The vegetable seedling culture medium and preparation and application thereof have the advantages that the raw material source and the product application range are wide, the purposes of environmental protection and water and soil loss are effectively achieved, and urgent needs for sustainable development of circular agriculture and green agricultural are met.

The invention provides a method for improving facility continuous-cropping soil by means of earthworms. Between rotations of crops in a facility greenhouse, a soil plough layer is turned over so thatearthworm feed can be applied into the soil plough layer, then young earthworms are put into soil, then the soil is covered with wet straw, and then the next crop is planted. According to the providedmethod for improving the facility continuous-cropping soil by means of the earthworms, the current development requirements of the ecological agriculture and the economic society are combined, a proper living environment is created according to the living characteristics of the earthworms, soil improvement, agricultural waste resource utilization and earthworm breeding are combined, the conversion efficiency of agricultural waste nutrients is improved, the ecological environment quality of the farmland soil is improved, the agricultural green production concept is deepened, and the yields andthe quality of agricultural products are improved. The provided method for improving the facility continuous-cropping soil by means of the earthworms has the advantages that the conception is novel,economic and ecological benefits are high, management is simple and convenient, technical operation is easy to master, and the like, and is worthy of application and popularization.

The invention discloses a three-dimensional-drainage precast reinforced concrete pile and a construction method. The three-dimensional-drainage precast reinforced concrete pile comprises a precast reinforced concrete pile body, at least one vertical drainage groove, at least one vertical drainage body, 2 to 5 horizontal ring-direction drainage grooves and 2 to 5 horizontal ring-direction drainage bodies. The precast reinforced concrete pile body comprises a class-A pile main body, a class-B pile main body and a class-C pile main body. The vertical drainage grooves are formed in the side faces of the class-A pile main body, the class-B pile main body and the class-C pile main body. The vertical drainage bodies are arranged in the vertical drainage grooves. The ring-direction drainage grooves are formed in the side face of the class-C pile main body. The ring-direction drainage bodies are arranged in the ring-direction drainage grooves. The three classes of main pile bodies are combined, driven and spliced according to geological survey data, lap joint is conducted on the drainage bodies at the pile slicing positions so that continuous vertical drainage bodies distributed along the full length of the pile body can be formed, and a three-dimensional drainage system is formed by the vertical drainage bodies and the horizontal ring-direction drainage bodies. The three-dimensional-drainage precast reinforced concrete pile and the construction method have the beneficial effects that the excess pore water pressure generated in the pile sinking process can be effectively reduced, the after-construction consolidation settlement is reduced, meanwhile, under the effect of earthquakes, the excess pore pressure accumulation of a soil body around the pile can be effectively reduced, and earthquake damage caused by foundation liquidation is prevented.