853results about How to "Normal growth" patented technology

The present invention discloses a concrete additive, said additive is mainly formed from mineral powder containing elements of iron, phosphoruc, calcium and silicone, water-retaining agent and composite fertilizer. Said additive can be added in concrete, it not only provides rich nutrients for growth of concrete, it not only provides rich nutrients for growth of plant in concrete, but also can change concrete property so as to provide growth environment for plant in the concrete, so that it is favorable for greening slope land.

The invention relates to a method for restoring petroleum-polluted saline alkali soil by ryegrass and high efficiency microbes. The invention belongs to the technical field of environment restoration, and relates to a method for restoring soil by microbe microbial inoculums and plants. The method comprises the following steps: pretreating soil, preparing different microbial inoculums, planting ryegrass, and managing according to the normal requirements for plant growth after sprouting. Microbes and microbial inoculums can cooperate to perform the synergistic action; the addition of the microbe microbial inoculums can promote the plant growth, improve the structure of soil and reduce the pH value of soil, so that environmental conditions which are beneficial to pollutant degradation are formed in the soil. Ryegrass and other garden plants have the functions of promoting petroleum hydrocarbons to degrade and greening the landscape, and can be used as a feed on the premise that the pollutants of the reaped ryegrass do not exceed the standard, thereby having certain economic benefit. The invention enhances the degrading effect of petroleum hydrocarbons, and the degrading rate of petroleum hydrocarbons after five-month growth, can reach 57%. The technique can reduce plowing required by the restoration which only uses microbes and supplement the measures for microbial inoculums, and has favorable effect of removing petroleum hydrocarbons in soil for a long time.

The invention belongs to the technical field of tobacco cultivation, particularly to cured tobacco float seedling and preparation method. Each component of the cured tobacco float seedling comprises according to the following quality ratio: rotten straw 65-70%, vermiculite 15-20%, puffing perlite 10-20%. According to the invention, tobacco leaf seedling cost is reduced, resources are utilized reasonably, prepared ground substance is suitable for normal development of tobacco seedlings, during development of the tobacco leaf, seedling ratio and seedling generation of the tobacco belong to the normal. The prepared ground substance is loose, gas permeability is good, supply of nourishment and water meet with the development of the tobacco seedling, therefore the root system of the tobacco seedling is developed, quantity of the lateral root reaches more than 300.

The invention relates to a composite artificial ligament and a preparation method thereof. The composite artificial ligament has a rodlike structure formed by reeling of a woven net. The woven net has a net structure formed by weaving of threads. The threads in the rodlike structure tangle with each other to loop together so as to form a mesh interleaving structure. The threads are formed by winding of a variety of filament bundles with different degradation properties, and the variety of filament bundles with different degradation properties are respectively formed by spinning or beam spinning of components with different degradation properties, so that the obtained composite artificial ligament has gradient degradation performance. The composite artificial ligament provided by the invention has good mechanical properties, and can promote the attachment of surrounding tissue and the repair and normal growth of ligament tissue. At the same time, part of components in the body can be gradually biodegradable, and significant decline of the ligament's mechanical properties cannot be caused during degradation.

The invention discloses a method for restoring and improving uranium tailing residues-contaminated soil, the employed materials comprise Aeschynomene indica, Miscanthus floridulus and Imperatacylindrica, plant ash and cow dropping, the plant ash is made by burning the Miscanthus floridulus and the Imperatacylindrica. The plant ash and the cow dropping is formulated into a mixed fertilizer in accordance with a proportion to be fertilized in a plant ditch that is built in uranium tailing residues-contaminated region, the three plants of the Aeschynomene indica, the Miscanthus floridulus and the Imperatacylindrica are planted in groups in the plant ditch. By using the method, dense vegetation can be constructed in a very short time to prominently increase soil nitrogen, organic matters and pH value, and meanwhile, the soil root density is increased and the content of soil water-soluble uranium is reduced obviously. The method has the advantages of simple operation, low cost, good efficiency of preventing the uranium from transfer and diffusion, and beautifying the environment. The technique can be used in reconstructing vegetation in a degraded ecosystem of mines and greening expressways.

The invention discloses a mesenchymal stem cell serum-free medium and a culture method, the serum-free medium comprises a basal medium and an additive component, the additive component comprises hypoxia-inducible factor-1 and a force growth factor, the concentration of the hypoxia-inducing factor -1 is 10-20 ng/ml; and the concentration of the force growth factor is 20-50 ng/ml. The serum-free medium is used for culturing mesenchymal stem cells under 5% hypoxic culture conditions. The serum-free medium is determined in component and controllable in quality, can be used for tissue adherent separation of the mesenchymal stem cells, can make growth of the mesenchymal stem cells normal; the serum-free medium is combined with the hypoxic culture conditions to play a synergistic effect on the growth of the mesenchymal stem cells, and the growth of the mesenchymal stem cells is greatly improved. At the same time, the '' stemness'' of the mesenchymal stem cells and differentiation capability of the mesenchymal stem cells into osteoblast, chondrocyte, adipocyte and other cells are remained after several passages.

The invention relates to a method for culturing microalgae by utilizing aquaculture wastewater. The method comprises the following steps: 1) domesticating microalgae: inoculating microalgae into a culture medium for culturing, adding unsterilized aquaculture wastewater in a culture process and gradually increasing the adding rate of the aquaculture wastewater according to the growing number of themicroalgae; 2) activating the microalgae: adding the unsterilized aquaculture wastewater into the culture medium and then inoculating the domesticated microalgae into culture medium for performing amplification culture; and 3) culturing the microalgae: inoculating the activated microalgae into an unsterilized aquaculture wastewater solution and culturing under an outdoor condition, thereby realizing aquaculture wastewater purification and microalgae grease production. According to the method for culturing the microalgae by utilizing the aquaculture wastewater provided by the invention, the unsterilized aquaculture wastewater is adopted for culturing the microalgae under the outdoor condition, the aquaculture wastewater purification and the microalgae grease production can be realized at the same time and the method has the advantages of low cost and suitability for large-scale production.

The invention belongs to the technical field of bionic bioceramics, and discloses a bionic bioceramic with a through-hole structure and a preparation method and application thereof. The method for preparing the bionic bioceramic with the through-hole structure comprises the following steps: firstly, preparing a mold with a through filament, feeding organic plastic granules into the mold to prepare a plastic porous scaffold, loading ceramic powder and a binder into the pores of the plastic porous scaffold, removing the through filament and the plastic porous scaffold, sintering at a certain temperature to obtain the bionic bioceramic with the through-hole structure. According to the invention, the shape, size and density of the through hole of the bionic bioceramic can be controlled well through the shape, size and distribution of the through filament, and the bionic bioceramic with the through-hole structure has an obvious advantage when being used for the repair and replacement of cancellous bone or a scaffold for tissue engineering.

The invention is concerned with the application method that uses the straw and the lawn plant to recover the housing refuse with heavy metal, it is: the 10 to 80 of housing refuse compost mix with 1 to 10 of straw to make the lawn plant culture substrate, seeds on the lawn plant culture substrate and give water every day, uses the ICP-AES method to test the heavy metal content after distilling by the lawn plant from cradle the upside of the lawn plant; the result shows with the paddy straw, the recover actuation of the Cr, Ni and Cd by the secular-grow ryegrass, and the recover actuation of the Cr and Ni by festuca arundinacea are big foreground.

The invention discloses a photovoltaic power generation greenhouse capable of adjusting light transmittance. The photovoltaic power generation greenhouse comprises an eastern gable, a western gable, a pair of side walls and a lighting surface skeleton installed on the tops of the eastern gable, western gable and side walls, wherein the bottom of the lighting surface skeleton is provided with a lighting covering film, a movable photovoltaic component and a fixed photovoltaic component are arranged on the top of the lighting surface skeleton in parallel, the movable photovoltaic assembly is moved or fixed relative to the fixed photovoltaic component so as to adjust a transmitting gap between the movable photovoltaic component and the movable photovoltaic component. The photovoltaic greenhouse can initiatively change a coverage rate of the lighting surface photovoltaic component according to different external light conditions and different requirements on the plant growth, so that the photovoltaic greenhouse initiatively controls the lighting rate, the lighting design bottleneck of the existing photovoltaic greenhouse is fundamentally broken through, the maximization of the photovoltaic power generation is realized while the plant production is guaranteed, and the adaptability of the photovoltaic greenhouse to different crops and a same crop at different growth periods is also improved.

The invention discloses a hydroxyapatite/polyurethane shape memory bone repair scaffold. The hydroxyapatite/polyurethane shape memory bone repair scaffold comprises hydroxyapatite, hexamethylene diisocyanate, an organic cross-linking agent, polycaprolactone glycol and water. The molar ratio of isocyanato contained in the hexamethylene diisocyanate to hydroxyl groups contained in other raw materials is 1.8-2.2 to 1. The sum of mass of the hydroxyapatite, the hexamethylene diisocyanate and the organic cross-linking agent accounts for 15-40% of the total mass of the raw materials. The mass ratio of the organic cross-linking agent, to the hydroxyapatite and to the polycaprolactone glycol is 4-9 to 1-15 to 100. By the adoption of a prepolymer foaming method, the raw materials are synthesized into the hydroxyapatite/polyurethane shape memory bone repair scaffold. Compared with the prior art, the hydroxyapatite is introduced into the hydroxyapatite/polyurethane shape memory bone repair scaffold to serve as a solid-phase cross-linking agent, and accordingly mechanical performance of the macromolecule scaffold is greatly improved.

The invention relates to a material for purifying and processing drinking water, which is made of high-temperature sintering tourmaline nanometer powder, alkali mine powder, metal magnesium and the like. The invention is characterized in that the material for purifying drinking water contains 5 to 30 weight percentages of sea shell powder, 10 to 40 weight percentages of tourmaline nanometer powder, 10 to 40 weight percentages of alkali mine powder and 2 to 20 weight percentages of metal magnesium. The invention has convenient utilization and low price, can effectively remove the foreign odor in water, has the functions of resisting bacteria and mineralizing, activating and minifying water molecular groups of the drinking water and enables the human body to achieve pH value balance.

The method for repairing arsenium-contaminated environment is characterized by that the spora of pteris cretica can be directly sown into the arsemium-contaminated environment (soil, tails and wet land) or the seedling-dividing mode is adopted to transplant the seedlings of pteris cretica into the arsenium-contaminated environment (soil, tails, wet land and water), the root system of pteris cretica can be used for mass-absorbing arsenium from environment and conveying it to aerial portion, and when the plant is grown to 30-50 cm height, said plant can be moved away and can carry away lots of arsenium so as to attain the goal of repairing arsenium-contaminated environment.

The invention relates to the field of manufacture of piezoelectric films, in particular to a medium-frequency magnetron reactive sputtering method for an aluminum nitride film. According to a film deposition process, firstly, high-purity argon and high-purity nitrogen are fed simultaneously into a vacuum cavity, the content of the nitrogen is kept to range from 20% to 30%, and sputter deposition of the aluminum nitride film is started after glow is stabilized; then the proportion of the argon to the nitrogen in the sputtering cavity is adjusted at the constant speed of 0.5 sccm/min-4 sccm/min in 10-20 min, and the content of the nitrogen is increased to 50% from the previous 20%-30%; finally, the sputtering power is not adjusted, sputter deposition of aluminum nitride is performed in the atmosphere for 10 min, an instrument is shut down, and film growth is ended. With the adoption of the method, the high-quality aluminum nitride piezoelectric film which meets the requirements for satisfaction of C-axis preferred orientation growth, normal surface grain growth, the uniform grain size, the smooth surface and suitability for producing a surface acoustic wave device can be prepared.

The invention provides a paraplesia cutting seedling raising and planting method which comprises the step of seedbed settling, soil scarifying and fine grinding, weed removing, bio-organic fertilizer adding, and bio-organic fertilizer and surface layer soil even mixing and further comprises the following five steps of cutting shoot selecting, cutting pretreatment, cutting, ecological bag seedling raising and planting. According to ecological bag seedling raising, an ecological bag is filled with seedling raising soil, and a rooted paraplesia seedling with a soil ball is transplanted into the ecological bag to be cultivated for one to two months. According to the paraplesia cutting seedling raising and planting method, the technology of combining land cutting and ecological bag cultivating is adopted, the survival rate and the preserving rate of paraplesia planting are increased, the cultivated ecological bag seedling is a whole-root seedling and provided with the soil ball, the root is not damaged in the planting process, and the survival rate of planting reaches more than 90 percent. It is shown by a field test in a black river village in the Maixi village of the Zoige county, the survival rate obtained after a paraplesia cutting bare-rooted seedling is planted is 72 percent, the preserving rate obtained after one year is 56 percent, and according to the paraplesia cutting seedling raising and planting method, the paraplesia planting survival rate is 95 percent, and the preserving rate obtained after one year is 88 percent.

The invention provides a method for growing gem crystals by way of vacuum induction heating and a device realizing the method. The method includes the following steps: an inductive tungsten, molybdenum or tungsten-molybdenum alloy heating body is utilized to heat alumina material in a crucible until the alumina material is melted, the convection of the melt and the linear velocity of flow are observed, an appropriate seeding temperature is chosen by adjusting the relative positional relation between the inductive tungsten, molybdenum or tungsten-molybdenum alloy heating body and the crucible,and after seeding, crystallization, equal-diameter growth and separation between crystals and the crucible, crystal growth is finished. An adjustable gap exists between the inductive tungsten, molybdenum or tungsten-molybdenum alloy heating body (7) and the tungsten, molybdenum or tungsten-molybdenum alloy crucible of the device (13), so that the relative positional relation between the inductivetungsten, molybdenum or tungsten-molybdenum alloy heating body (7) and the tungsten, molybdenum or tungsten-molybdenum alloy crucible of the device (13) can be adjusted. The method and the device canbe adopted to produce large-dimension sapphires, the process can be conveniently and automatically controlled, energy consumption is reduced, and the cost is saved.

The invention relates to a flowering phase regulation method for azalea, which is characterized by the following steps of: starting flower forcing two months before the expected flowering phase, controlling the greenhouse temperature to be 10 DEG C or so, controlling the room temperature to be 20 DEG C 20 days before the expected flowering phase, and thus enabling flowers to bloom at the expected flowering phase; when EC is smaller than 0.4, alternately watering the flowers with an aqueous solution containing Peters Professional 20-10-20 with a content of 1-1.2g/L or an aqueous solution containing KNO3 of 0.6-0.7g/L and MgSO4 of 0.4-0.5g/L based on the principle of not watering until being dried; and when EC is greater than 0.4, only watering the flowers with clean water of which the PH value is 6.0-6.5, and keeping the flowered illuminated for more than 8 hours everyday, wherein the illumination intensity is kept at 15000lux, and at the flower forcing phase, the daytime humidity is 70-80%, and the nighttime humidity is 75-85%.

The invention discloses an environmentally-friendly ecological breeding method of livestock and poultry, and relates to the technical field of breeding. An environmentally-friendly ecological breeding bed is manufactured by fermenting sawdust, corncobs or peanut hulls, corn flour, lees and wheat bran by using complex bacteria, complex bacteria liquid and complex enzymes; and when bred, the livestock and the poultry are put in the environmentally-friendly ecological breeding bed for breeding, the thickness of the environmentally-friendly ecological breeding bed is 70 to 90 centimeters, unfermented dried materials with the thickness of 10 centimeters are laid on the environmentally-friendly ecological breeding bed, moderate ventilation of air is kept, humidity is controlled to be 40 to 60 percent, and temperature is controlled to be between 5 and 35 DEG C. The invention has the advantages that: (1) the environmentally-friendly ecological breeding method is labor-saving and time-saving; (2) the environmentally-friendly ecological breeding bed is warm in winter and cool in summer, and the environment is purified; (3) the health of the livestock and the poultry is improved, and an incidence rate is reduced; (4) the growth of the livestock and the poultry is promoted, and a breeding cycle is shortened; and (5) the environmentally-friendly ecological breeding method is environmentally-friendly and has zero emission. The environmentally-friendly ecological breeding method is applied to pigs, chicken, ducks, gooses, sheep, rabbits and the like.