40results about How to "Stable water environment" patented technology

The invention discloses a set of apparatus and a method for culturing Haematococcus pluvialis and converting astaxanthin in large scale. The apparatus consists of a photo-bioreactor system set on the frisket, aeration equipment, culture fluid inoculation equipment and still cell harvesting equipment. Floating or sunken pulse equipment is set on the frisket. The apparatus don't need establishment of artificial culture pool and other institution, but uses natural water body to culture Haematococcus pluvialis in large scale. It is low cost, the culture temperature, illumination and water flow rate is stable, culture fluid flows with each other, aeration is continuous, culture conditions are precedent, which make the growth and increment of Haematococcus pluvialis almost at equal pace. The growth rate of Haematococcus pluvialis can reach to 25%, biomass increase is fast, doubles 3-5 days. The photo-bioreactor can be hoisted into required depth of the water, which solves the contradiction of difference of temperature, illumination and nutrition of Haematococcus pluvialis culture and astaxanthin conversion.

The present invention relates to the technical field of skin care products, in particular to a plant polysaccharide moisturizing factor and its preparation method and application. The polysaccharide moisturizing factor comprises the following components in mass percentages: tremella polysaccharide 2-3%, trehalose 2-3%, fruit polysaccharide Sugar 2-3%, bio-glucose-1 1-2%, oat bran extract 1-2%, wolfberry fruit extract 1-2%, honey extract 1-2%, phenoxyethanol 0.5-0.8% , and the balance is double distilled water. The polysaccharide moisturizing factor can be applied to freckle removal, whitening, wrinkle removal, anti-aging, sunscreen, moisturizing and repairing cosmetics or facial mask products. The polysaccharide moisturizing factor of the present invention not only has excellent functions of regulating skin water content, intelligently moisturizing and maintaining skin physiological activity, but also has strong repairing, immune and slow-release functions.

The invention discloses a composition for improving the breathability of orchard soil and an application method thereof. The composition is non-toxic and non-polluting, and specifically, the composition is a mixture of granular polyacrylamide, corncob particles and carbon residues; meanwhile, according to the composition for improving the breathability of the orchard soil and the application method thereof, a hole storage technology is adopted, the composition for improving the breathability of the orchard soil is filled in soil holes close to tree watering ranges in a centralized mode, a layer of 'water storage and breathable layer' is formed, water is conserved, a certain amount of gas can be effectively stored, at the same time, because of the water absorption and dehydration effects of granular polyacrylamide, the corncob particles and the carbon residues, the soil at root areas of fruit trees is loosened, the breathability of the soil at the root areas is improved, and the oxygen content of the soil at the root areas is increased; the root-system vigor of the fruit trees is improved, and the growth and development of plants are promoted.

The invention discloses a model test pressure stabilization water feeding system and an operation method of the model test pressure stabilization water feeding system. The model test pressure stabilization water feeding system comprises an air compressor, wherein the air compressor is connected with a pressure stabilization water storage device through a gas pipe; the pressure stabilization water storage device is connected with a flow monitor and a pressure transmitter through a water pipe in sequence; the pressure transmitter is connected with a point source water feeding device; the pressure stabilization water storage device is connected with a booster pump through a water feeding pipe; water outlets are formed in the bottom and outer side of the point source water feeding device. According to the model test pressure stabilization water feeding system, by filling a similar material inside the point source water feeding device and pre-embedding a model test bed to simulate water storage and diversion structure of geotechnical engineering, stable dynamic water environment can be provided for a grouting model test, important indexes such as pressure and flow in a water delivery process can be monitored, acquired and displayed in real time, and the water delivery pressure and flow can be adjusted in real time according to feedback information to meet model test requirements. The current situation that the current grouting model tests are performed under no water or still water condition, which does not accord with actual conditions of a grouting engineering is changed.

The invention discloses a loach feed which is bred in a high-density and scaled mode, and is prepared from the following components in percentage by weight: 10.0wt% of bean pulp, 2.0wt% of steam fish meal, 15.7wt% of sesame meal, 16.6wt% of cottonseed meal, 10.0wt% of rice bran, 15.0wt% of wheat, 1.6wt% of monocalcium phosphate, 8.0wt% of bran, 1.5wt% of monosodium glutamate yeast, 6.0wt% of imported meat and bone meal, 2.0wt% of united bran, 4wt% of embryo bran, 3.6wt% of corn vinasse, 1.5wt% of phospholipid oil, 0.1wt% of lysine, 1.0wt% of premix, 0.4wt% of Chinese herbal medicine additive and 1.0wt% of zeolite, wherein all components amount to 100%. The components of the feed are optimized; Chinese herbal medicine is added into the feed to replace antibiotics, thereby accelerating loaches to healthily grow, improving fish body quality and the immunity of an organism, preventing diseases, quickening loach growing speed, lowering feeding cost, avoiding the antibiotics, preventing medicines from remaining in the body, and improving feed stability.