43results about How to "Reduce the chance of intrusion" patented technology

The invention discloses a preparation method and preparation device of a titanium-aluminum alloy, and belongs to the field of preparation of the titanium-aluminum alloy by an aluminothermic reduction method. The invention provides a preparation method and a corresponding preparation device of the titanium-aluminum alloy, which can improve the residue-metal separation effect and the quality of the titanium-aluminum alloy; the titanium-aluminum alloy is prepared through an aluminothermic reduction reaction under a super-gravity system environment, so that the residue-metal separation effect can be improved. The preparation device comprises a reaction tank and a super-gravity generating system, wherein the super-gravity generating system comprises a support frame, a central rotating shaft, a rotating cross arm and a driving mechanism, the reaction tank is in hanging connection to the free end part, which is away from the central rotating shaft, of the rotating cross arm, through a steel rope. The reaction tank is driven by the driving mechanism to rotate around the axis of the central rotating shaft, so that performing an aluminothermic reaction in the reaction tank under the super-gravity field environment is realized. The preparation device disclosed by the invention is simple in structure, and super-gravity coefficients can convenient to regulate as needed.

The invention relates to a dryer used for the body surface of a piglet. The invention adopts the technical scheme that the dryer comprises the following raw materials by weight percent: 91-99% of kieselguhr, 0.02-1.0% of rhubarb, 0.10-1.0% of isatis leaf, 0.10-1.0% of weeping forsythia, 0.10-1.0% of artemisia leaf, 0.02-1.0% of baikal skullcap root, 0.02-1.0% of astragalus root, 0.10-1.0% of green chiretta, 0.10-1.0% of myrobalan and 0.10-1.0% of sweet wormwood. The dryer is smeared on the body surface of the piglet, can quickly dry the body surface of a newborn piglet, effectively keeps the body temperature of the newborn piglet and reduces the invasive probability of outside pathogens. The dryer is sprayed on the ground or in the air, also can adsorb pathogenic microorganisms and moisture in a pigpen, regulates the humidity and the temperature in the pigpen, keeps the dryness of a resting area of the piglet in the pigpen and has an important meaning for enhancing the growth performance and the survival rate of the piglet.

The invention provides a composition for control and elimination of crop diseases and pests. The active components comprise a compound (A), a compound (B) and a compound (C), wherein (A) represents the compound described by formula (A), (B) represents the compound described by formula (B), and (C) is selected from copper hydroxide or copper calcium sulphate. In the composition, the compound (A), compound (B) and compound (C) are in a weight ratio of 1-50:1-50:1-50, realizes organic combination of agricultural sterilization and insect killing, and the soil treatment can prevent the damage of fungal and bacterial diseases, soil pests and root nematodes simultaneously.

The invention provides a BOPP antibacterial food pearlized film, which comprises an upper antibacterial agent layer, a lower antibacterial agent layer and a middle PP layer positioned between the upper antibacterial agent layer and the lower antibacterial agent layer, wherein the middle PP layer covers on the lower antibacterial agent layer; and the upper antibacterial agent layer covers the middle PP layer. The invention also provides a method for manufacturing the BOPP antibacterial food pearlized film. The BOPP antibacterial food pearlized film has effective bacteriostasis and antibiosis and prolongs the quality guarantee period of products.