4results about How to "Moderate water content" patented technology

The invention relates to the technical field of animal husbandry feed processing, and in particular to a livestock diet and a preparation method thereof. The livestock diet is prepared from the following raw materials: southern alfalfa, camphor, corn, soybean meal, rapeseed meal, bran, calcium hydrogen phosphate, lysine, methionine, stone powder, salt and an additive premix; fresh camphor leaves are blanched, dried and crushed to obtain camphor leaf powder; the camphor leaf powder is sieved through a 0.45mm mesh, southern alfalfa, camphor, corn, soybean meal, rapeseed meal, bran, calcium hydrogen phosphate, lysine, methionine, stone powder, salt and the additive premix are mixed to obtain a mixture, lactic acid bacteria are added to the mixture, water is added, and the water content is adjusted to obtain the livestock diet. The prepared livestock diet has the advantages of moderate water content, storage resistance, and not easy to become rancid, and the utilization rate of the diet components is improved.

The invention relates to an artificial corneal endothelium sheet as well as a preparation method and application thereof. The artificial corneal endothelium sheet is prepared from the following raw materials: a hydrophilic monomer, a hydrophobic monomer, a cross-linking agent, an ultraviolet absorption monomer, a blue light absorption monomer and an initiator, the hydrophilic monomer comprises a combination of hydroxyethyl methylacrylate and polyethylene glycol methacrylate, and the hydrophobic monomer comprises a combination of methyl methacrylate and isobutyl methacrylate; in the preparation raw materials, the use amount of the hydrophilic monomer is 80-94 wt%, and the use amount of the hydrophobic monomer is 5-19 wt%. According to the artificial corneal endothelium sheet provided by the invention, the proportion and components of the hydrophilic monomer and the hydrophobic monomer are regulated and controlled, so that the obtained artificial corneal endothelium sheet is moderate in water content and has excellent mechanical properties, adhesion performance and swelling stability.

The invention relates to the technical field of medicine production, and discloses a freeze-drying process and application thereof. The freeze-drying process comprises the step of enabling a sample to sequentially pass through a pre-freezing stage, a primary drying stage and a secondary drying stage to obtain a freeze-dried product, in the pre-freezing stage, a cooling-heating-cooling mode is adopted, and the temperature change range is-50 DEG C to-10 DEG C; the primary drying stage comprises three times of slope heating, and the temperature change range is-50 DEG C to-2 DEG C; the secondary drying stage comprises three times of slope heating, and the temperature change range is-2 DEG C to 30 DEG C. According to the freeze-drying process provided by the invention, by adopting a cooling-heating-cooling pre-freezing mode, the crystallization rate of the sample is effectively improved, the water solubility of the freeze-dried sample is good, the sublimation drying time is effectively shortened, and the freeze-drying efficiency is accelerated; and in the primary drying stage and the secondary drying stage, the heating temperature parameter and the vacuum degree are controlled, so that the freeze-dried sample shows a relatively good appearance and has a proper water content.

This invention relates to the field of fertilizer preparation technology characterized by biological or biochemical treatment steps, and discloses an aerobic composting chamber for organic fertilizer that requires no turning and has low nitrogen loss. Multiple spaced, plate-shaped composting chambers and acidification / ventilation / water replenishment chambers are created in a polycarbonate greenhouse. The acidification / ventilation / water replenishment chambers rapidly exchange air under the chimney effect, replenishing oxygen to adjacent manure compartments and preventing overheating. Simultaneously, the manure ferments within insulation material in the polycarbonate greenhouse, preventing the manure surface temperature from becoming too low. The manure can only transfer heat and mass with the acidification / ventilation / water replenishment chambers; water and ammonia losses are prevented by the moist acidic filler in the acidification / ventilation / water replenishment chambers, and water is replenished to the manure through capillary infiltration, ensuring a stable and uniform moisture content. The combination of these points ensures that the manure does not require turning, significantly improving production efficiency and reducing nitrogen loss. Furthermore, because no turning is required and fermentation is done in separate chambers, different microbial strains and fermentation parameters can be used in each chamber, adapting to different stages of soil improvement.