163results about How to "Difficult to grow" patented technology

The invention provides a patterned substrate, a preparation method and a light-emitting diode. A dielectric layer is deposited on the surface of the substrate with a plurality of bulges, and the amorphous body characteristic of the dielectric layer is utilized, so that aluminum nitride layers deposited on platforms on the side surfaces and top surfaces of the bulges through a PVD method are amorphous, and aluminum nitride arranged on the smooth surfaces of bulge gaps in a covering manner is polycrystal consisting of micro crystal particles. Then, when the substrate is applied to an MOCVD method to deposit gallium nitride-based epitaxial layers to form the light-emitting diode, by utilizing characteristics that the aluminum nitride polycrystal grows more easily on the smooth surfaces and the amorphous aluminum nitride is unlikely to deposit the gallium nitride-based epitaxial layers, the epitaxial layers selectively grow on the aluminum nitride layers on the smooth surfaces of the bulge gaps, and the platforms on the side surfaces and top surfaces of the bulges are unlikely to grow, so that the growth of the gallium nitride-based epitaxial layers on the side surfaces is reduced, the quantity of defects when the gallium nitride-based epitaxial layers in lateral growth and the gallium nitride-based epitaxial layers in positive growth on the smooth surfaces are merged is reduced, and the performance of the finally formed semiconductor element is promoted. Moreover, the growth of the lateral gallium nitride-based epitaxial layers is inhibited, and the gallium nitride-based epitaxial layers in positive growth are merged into a smooth surface more easily.

The invention discloses a tissue culture and rapid propagation method for macadimia nuts. The tissue culture and rapid propagation method for the macadimia nuts comprises the steps that stem sections with buds and with the length of 4 cm are cut out of mature macadimia nut trees to serve as explants, and the explants are subjected to disinfection treatment; the obtained explants undergo induced culture for 20-24 days, wherein the temperature is 23-25 DEG C, the light intensity is 2000-2200 Lux, and the lighting time is 13-15 hours every day; cultivated newly-grown axillary bud seedlings are cut into the stem sections under the aseptic conditions, and each stem section is only with one axillary bud and is planted in a rooting medium to be cultivated at the temperature of 25-27 DEG C. The tissue culture and rapid propagation method for the macadimia nuts sequentially comprises three stages: at the first stage, cultivation is performed for 12-14 days under the conditions of the light intensity of 2200-2400 Lux and the lighting time of 14-16 hours every day; at the second stage, cultivation is performed under the dark condition for 8-10 days; at the third stage, cultivation is performed under the conditions of the light intensity of 2800-3000 Lux and the lighting time of 18 hours every day till rooting is achieved. The problems of difficult tissue culture and rooting of the macadimia nuts and low rooting rate are solved by means of the tissue culture and rapid propagation method.

The invention provides normal-temperature-storage processed cheese and a preparation method thereof. The normal-temperature-storage processed cheese includes a surface coating and a core part. On the basis of 1000 parts by weight of raw materials, the normal-temperature-storage processed cheese includes following raw materials, by weight, 150-600 parts of original cheese, 30-180 parts of a sweetening material, 5-200 parts of whole milk powder, 5-100 parts of water-free butter, 5-15 parts of starch, 1-20 parts of dextrin, 1-18 parts of a colloid stabilizing agent, 0.1-1 part of a preservative, 2-18 parts of an emulsified salt, and the balanced water. The sweetening material includes one or more from the group of saccharose, high fructose corn syrup, maltose, xylitol and sugar powder. The colloid stabilizing agent includes 1-10 parts by weight of Arabic gum. The sweetening material and the colloid stabilizing agent are employed as raw materials of the surface coating while other raw materials are employed as the raw materials of the core part. The invention also provides the preparation method of the normal-temperature-storage processed cheese.

The invention relates to the technical field of agricultural technology and biotechnology cross technologies, and particularly discloses a method for rapidly screening low-accumulation heavy metal crop varieties and a device used by the method. The method comprises the steps that the device for rapidly screening the low-accumulation heavy metal crop varieties is manufactured, then crop seeds are subjected to vernalization, the seeds are cultivated by using a nutrient solution after the seeds are sowed in nutrient agar medium of the device, after crops are cultivated to the required period, a heavy metal solution is added to the nutrient solution, the crops are harvested after cultivation, and low-accumulation heavy metal crop variety screening is carried out. The device is made of light-proof PVC boards, so that harmful substances are not prone to be leached out to affect a research result, and a dark condition like that roots of the crops are in soil can be simulated; a centrifuge tube and small holes are simultaneously used for marking, and thus the marking is convenient; and by adopting a water culture mode for cultivation, the nutrient solution can provide nutrients and water, so that the survival rate is high, and clean and complete crop plants, particular the roots, can be obtained rapidly and accurately.

The invention relates to the technical field of nanometer materials, in particular to a sulfur/tin oxide/graphene battery cathode material, a preparation method and a lithium sulfur battery. The invention discloses a preparation method of a sulfur/tin oxide/graphene battery cathode material, comprising the following steps: Step 1, nitrogen doped graphene and a tin salt solution are hydrothermallyreacted to obtain a graphene-tin oxide nano-composite material; and Step 2: the graphene-tin oxide nano-composite material and elemental sulfur are mixed to obtain a mixture, and a vacuum melting diffusion reaction is carried out on the mixture to obtain a sulfur/tin oxide/graphene battery cathode material. The invention also discloses a sulfur/tin oxide/graphene battery cathode material preparedby the method and a lithium sulfur battery thereof. The invention solves the technical problems that the elemental sulfur in the prior art cannot be effectively utilized in the cathode material of thelithium sulfur battery, thereby leading to short service life, and poor conductivity, cycle stability and safety performance of the lithium sulfur battery.

Provided are resist stripper regeneration methods and devices. Resist components are solid organic matters at normal temperatures and are solidified for adhesion when the temperatures on the periphery of the inlet and outlet of a residue concentrator drops. The regeneration methods for regenerating a resist stripper include a step of low boiling point separation to separate low boiling point substances such as water; a step of high boiling point separation to take out a residual liquid including a resist and a solvent as outliers; a residue concentration process, in which the residual liquid including a resist is further concentrated in the residue concentrator to separate the solvent and to return to the high boiling point separation step; a refining process, in which the separated substances in the high boiling point separation step gasifies and separates the water, the residual part being used as a waste liquid B, and the separated residual liquid is taken out as a stripping regeneration liquid; and a cleaning process, in which the separation residual liquid in the low boiling point separation step flows in the residue concentrator.

The invention discloses a method for establishing a zoysia plant lawn with river sand as a matrix. The method comprises the following steps that firstly, a soil bed is prepared; secondly, river sand is used for covering; thirdly, creeping stems and erect stems of zoysia plants are collected; fourthly, theziysia stems are planted; fifthly, management after establishing is carried out, wherein 1, watering, 2, topdressing and 3, trimming are carried out. Compared with the prior art, the method has the advantages of the method for establishing a lawn through sand cultivation, and the number of new roots, the length of the new roots and the daily increasing number of the new roots of the planted zoysia plants can be effectively increased with the special river sand in combination with other treatment methods; meanwhile, the method has the advantages that operation is easy and convenient, the growth cycle is short, the survival rate is high, no damage is caused to soil resources, and the incidence rate of pest and disease damage and weeds is low.

The invention discloses a planting matrix for artificial planting of Caulis Dendrobii. The planting matrix comprises a matrix A, a matrix B and a matrix C which are sequentially stacked from bottom to top, the matrix A is composed of, in parts by weight, 10-20 parts of dry wheat straw or 10-20 parts of dry rice straw, the matrix B is a mixture of, in parts by weight, 5-10 parts of medium sand and 10-20 parts of leaf mold, and the matrix C is a mixture of, in parts by weight, 15-25 parts of modified biochar, 15-45 parts of rotten wood, 5-15 parts of expanded perlite and 10-35 parts of pine bark. The preparation method of the planting matrix includes: preparing the modified biochar, preparing the matrixes A, B and C, and stacking the matrixes A, B and C. The preparation method is simple and easy to understand, the planting matrix prepared by the method overcomes the defect that existing matrixes after being used for a long time are rotten and airtight and do not conserve water, and is low in cost, complete in nutrient, more conducive to growing of Dendrobium Officinale and capable of promoting stems of Dendrobium Officinale to grow thicker and stronger and promoting root systems to be more developed.

The invention provides a plant empty capsule with a good moulding effect, high surface smoothness and good elasticity and a manufacturing method thereof. The plant empty capsule comprises 88-90wt% of complex gum, 1-3wt% of potassium chloride, 0.3-0.5wt% of humectant, 0-0.2wt% of polysaccharide, 3-5wt% of medical glycerinum, 1-3wt% of titanium dioxide and 0.2-0.3wt% of food colourant, wherein the complex gum comprises carrageenan, plant cellulose and sodium carboxymethylcellulose. The plant empty capsule is low in water content, is especially applicable to being filled with medicines which have strong hygroscopicity and are sensitive to moisture, has the advantages of wide applicability, no crosslinking reaction and high stability and is preservative-free, and microorganisms can hardly grow on the empty capsule; and meanwhile, the plant empty capsule is hardly crisp or broken at a low temperature and is still stable in capsule shell character at a high temperature.

The invention belongs to the technical field of health-care products, in particular to health-care tea for preventing diabetes. The health-care tea comprises raw materials in parts by weight as follows: 20 parts of dried guava barks, 2 parts of ginseng flower buds, 10 parts of dried miracle fruit leaves, 3 parts of peeled ganoderma and 65 parts of golden camellia fu-brick black tea. The preparation method includes steps as follows: the first four raw materials are crushed and subjected to sterilization and moisture absorption treatment by steam at the temperature of 122 DEG C for 10 minutes, the first four raw materials are cooled to 28 DEG C and mixed with the crushed and dispersed golden camellia fu-brick black tea, the mixture is fermented at the constant temperature of 28 DEG C and 18 DEG C day and night respectively and then dehumidified and dried at the constant temperature ranging from 50 DEG C to 52 DEG C, finally the mixture is packaged, and the health-care tea is obtained. The health-care tea has the characteristics that the tea can decrease blood sugar and is natural, free of side effects, mellow, sweet, convenient to store and carry and drinkable as long as brewed by boiled water.

The invention relates to an efficiency treatment method of straw returning of a vineyard. The method comprises the steps of stubble returning to field and straw returning to field. The method of stubble returning to field comprises the following steps that when crops are harvested, the heights of crop stubble are kept within 10-15 centimeters. The method of straw returning to field comprises the steps of direct incorporation and water-logged compost returning to the field. The efficiency treatment method of straw returning to field of the vineyard is simple and easy to achieve, low in treatment cost, high in efficiency and high in soil improvement ability, all parts of the crops are separated and separately treated so that all the parts of the crops can be decomposed as far as possible, accordingly, the physical soil property is improved, the nutrient in the soil is increased, the yield of the crops is increased, and meanwhile the efficiency treatment method has wide market prospects on application and popularization of straw returning to the field.