8 results about "Biological activation" patented technology

An auto-occlusion safety device is provided for use in preventing rupture of infusion components during rapid infusion procedures. An occlusion valve is disclosed having a threshold pressure that is less than a rupture tolerance of the infusion system components. As the fluid pressure of the infusion system increases beyond the threshold pressure of the occlusion valve, the occlusion valve is automatically activated thereby occluding fluid flow upstream from a vulnerable infusion component. An accumulator is further disclosed for use in combination with the safety device to compensate for time delays in full activation of the occlusion valve.

The invention discloses a catalyst used for preparing acrylic acid and butyl ester by the dehydration of butyl lactate and a preparation method thereof. The catalyst is a composite catalyst, comprising a main catalyst A and auxiliary catalysts B, C, D and E, wherein, A is calcium sulphate, B is sulphuric acid, C is phosphate, D is alkaline matter and E is promoter. The preparation method comprises the steps as follows: five compositions A, B, C, D and E are sufficiently mixed, baked for 2-10 hours at the temperature of 200-800DEG C and formed for standby. The catalyst has high catalytic activation; under the catalysis of the catalyst, the molar yield reaches 75.1 percent and the molar selectivity of the acrylic acid and butyl ester reaches 71.5 percent. The preparation method has the advantages that the crystal structure of the main catalyst can be improved so as to be beneficial for carrying out the reaction; and the introduction of different auxiliary catalysts and quantities is helpful to improve the conversion ratio of the raw material and the product selectivity and is beneficial for improving the strength of the catalyst.

The invention relates to the technical field of plant cultivation, in particular to a eucommia ulmoides tissue culture seedling rooting induction and large-scale rapid propagation cultivation method which comprises the following raw materials: a modified basic culture medium, modified naphthylacetic acid, modified sucrose, inositol, activated carbon and agar. According to the invention, the modified basic culture medium converts a traditional nutrient medium into an active substrate with biological stimulation and signal initiation functions; the modified naphthylacetic acid realizes stable slow release and biological activation of the auxin, and provides a lasting and mild induction signal; the modified sucrose has a multifunctional carbon source for stress resistance protection, mineral supply and physical support; under the synergism of the three, a continuous action period of starting, inducing and protecting is formed, the structure and the air permeability of a rhizosphere microenvironment are jointly optimized in space, endogenous / exogenous signals are integrated in a physiological level, a key enzyme system is activated, and the cell stress resistance is enhanced, so that the rooting rate, the root system quality and the transplanting survival rate of eucommia ulmoides tissue culture seedlings are synergistically and remarkably improved.

The invention relates to the technical field of biological agriculture, and discloses a silicon ecological enzyme agricultural preparation with dual functions of biological activation and physical protection and a preparation method of the silicon ecological enzyme agricultural preparation. The invention relates to a preparation method of a silicon ecological enzyme agricultural preparation with biological activation and physical protection dual functions, which comprises the following steps: 1) adding a fermentation supplement into organic wastes to obtain a fermentation raw material, then adding a compound microbial agent into the fermentation raw material, and carrying out sectional fermentation to obtain a fermentation liquid; (2) adding a compound enzyme preparation into the fermentation liquor obtained in the step (1), and performing enzymolysis to obtain enzymatic hydrolysate; 3, a silicon source is supplemented into the enzymatic hydrolysate obtained in the step 2, and the silicon ecological enzyme agricultural preparation with the biological activation and physical protection double functions is obtained.The silicon ecological enzyme agricultural preparation with the biological activation and physical protection double functions has the good soil environment improving effect and the good crop performance improving effect.

The application belongs to the technical field of ecological restoration, and discloses a kind of saline-alkali soil dry field improver and application method, the improver includes the following mass fraction of raw materials: calcium-based material 30~45 parts, modified biochar-polyacrylamide-based glue complex 20~30 parts, salt-tolerant microbial bacteria 4~8 parts, slow-release synergist 6~10 parts, organic acid complexing agent 8~15 parts, humic acid substance 10~20 parts and trace element nutrient salt 3~6 parts;The calcium-based material is one or more of desulfurization gypsum, phosphogypsum and anhydrous calcium sulfate after pre-activation treatment.The improver of the application is through three mechanisms of chemical replacement, structure stability and biological activation, and at the same time, it is matched with a layered application method highly adapted to the water and salt migration law of dry field, and it shows strong and durable comprehensive improvement effect on dry fields with different degrees of salinity, and it greatly improves crop yield, and has significant practical value and wide applicability.

The invention provides a production process of a high-density fiberboard for heels. The production process comprises the following steps: S1, chipping; s2, screening is carried out; s3, biological activation; s4, separating fibers; s5, drying; s6, winnowing is conducted; s7, sizing is conducted; s8, adding; s9, paving is conducted; s10, prepressing is carried out; s11, hot pressing; s12, carrying out post-treatment; s13, cooling the plate; s14, finishing is conducted; s15, carrying out health maintenance; s16, cutting is carried out; and S17, grading and packaging. According to the production process of the high-density fiberboard for the heel, a biological activation path is created, active sites are created for subsequent formaldehyde-free self-adhesion, the reaction activity of raw materials is changed fundamentally, pure physical thermal softening is replaced, energy is saved, the fiber binding potential is improved, and the performance of the high-density fiberboard is guaranteed.

The application discloses a kind of oil-containing sludge detection method, equipment and medium, it is related to biochemical detection technical field, including, phosphate buffer solution is added to sample processing container and starts mechanical stirring equipment to carry out uniform stirring to oil-containing sludge sample, form uniform slurry liquid;Uniform slurry liquid is treated by ultrasonic wave processing reactor and is treated by ultrasonic wave irradiation, and form broken emulsion liquid mixture;Broken emulsion liquid mixture is injected into group response bacteria reaction pool, and form activated mixture;Activated mixture is detected dynamically, and impedance signal is output, and ultraviolet light is used to carry out light excitation, and optical verification signal is acquired;Impedance signal and optical verification signal are input into fusion algorithm and are cross-validated and weighted calculation, and the output of biological available oil concentration value.The application realizes the accurate quantification of oil-containing sludge biological available oil concentration by the synergism of group response bacteria biological activation and impedance-optical dual-signal fusion dual-mechanism.

The invention discloses a saline-alkali soil crop yield increasing and soil improving method based on root zone oxygenation and microorganism regulation and control, and belongs to the technical field of agricultural soil improvement. According to the method, oxygen-enriched irrigation water with the dissolved oxygen concentration of 10-15 mg / L is continuously conveyed to a crop root zone through a drip irrigation system. According to the method, the oxygen content and the oxidation-reduction potential of the soil in the root zone are directly increased, the hypoxia stress of the root system is relieved, and the reproduction and activity of beneficial aerobic microorganisms such as actinomycetes can be directionally regulated and promoted. Through the synergistic effect of physical oxygenation-biological activation, the physical structure of soil is effectively improved, the activity of key enzymes such as soil catalase and sucrase is remarkably enhanced, and conversion and supply of nitrogen and phosphorus nutrients are optimized.