10results about How to "Avoid harmful effects" patented technology

The invention discloses a compound microecological preparation, fermentation liquor and application of the compound microecological preparation in laying hen production. The compound micro-ecological preparation is prepared from clostridium butyricum NIP1021, bacillus cereus 2022B1, bacillus licheniformis 2022B2 and enterococcus faecium 2022B6. The fermentation liquor of the compound micro-ecological preparation can promote the growth performance levels of the Haillan grey laying hens, such as the final weight and the like; the development of thymus and bursa of Fabricius immune organs of laying hens can be promoted; the content of serum immune globulin IgG and serum-related immune cell factors IL-1beta, IL-6 and TNF-alpha of laying hens is remarkably increased, so that the serum nonspecific immune level of animal bodies is improved; according to the method, the intestinal villus area of the laying hens is increased, the nutrient absorption capacity of the laying hens is improved, cecum flora diversity and species abundance are increased, dominant flora categories are thick-wall flora and bacteroides to regulate intestinal flora balance, and the method has positive significance in maintaining intestinal health.

The application discloses a plant composition with soothing effect and a preparation method and application thereof, and the composition comprises saponins extracted from radix cynanchi rossii and radix anemarrhenae, and polysaccharides extracted from the radix anemarrhenae, and the mass ratio of the saponins to the polysaccharides is (1-5):(1-3). The technical scheme of the application is as follows: the radix cynanchi rossii and the radix anemarrhenae are mixed in a certain proportion, crushed, extracted by an alcohol solution, and then saponins are obtained through composite membrane separation; the remaining residues are extracted by water, impurities are removed by a clarifying agent, and the radix anemarrhena polysaccharides are obtained through ultrafiltration; and the saponins and the polysaccharides are compounded in a certain proportion, supplemented by polyhydric alcohol to be dissolved, so that the composition with the soothing effect is obtained, and the composition can be applied to the preparation of skin care cosmetics, especially soothing and anti-irritation products.

The embodiment of the invention relates to a centrifugal pump. A centrifugal pump includes a barrel, a shaft, a balancing drum, and a bushing. The shaft is arranged in the barrel and is configured to drive an impeller on the shaft to rotate, so that media flow from an inlet of the centrifugal pump to an outlet of the centrifugal pump. The balancing drum is circumferentially arranged on the shaft and configured to at least partially balance the axial force exerted by the medium on the impeller, the balancing drum rotates along with the shaft, and the radial outer surface of the balancing drum is provided with a plating layer. The bushing is matched with the plating layer of the balancing drum and forms a combined body with the bushing frame to be mounted on the radial inner side of the end cover, the bushing is made of a wear-resistant composite material, and the end cover is fixedly arranged on the cylinder body. According to the embodiment of the invention, the pressure fluctuation and noise of the centrifugal pump can be reduced.

The present invention relates to a cosmetic composition comprising antioxidants: an Argania spinosa leaf extract, a Pinus pinus bark extract, and resveratrol, as well as a cosmetic treatment method and use thereof, and more particularly, to a cosmetic composition comprising an antioxidant, an Argania spinosa leaf extract, a Pinus pinus bark extract, and resveratrol.

The invention relates to a phase frequency detector circuit with radiation hardening. The phase frequency detector circuit comprises a first D flip-flop circuit, a second D flip-flop circuit, a C unit circuit and a frequency locking indication unit circuit, the first D flip-flop circuit and the second D flip-flop circuit are the same in structure, each of the first D flip-flop circuit and the second D flip-flop circuit comprises a first DICE latch circuit and a second DICE latch circuit which are connected in sequence, and the DICE latch circuits are controlled by zero setting signals and clock signals; two input ends of the C unit circuit are respectively connected with output ends of the first D flip-flop circuit and the second D flip-flop circuit, and an output signal of the C unit circuit is fed back to the first D flip-flop circuit and the second D flip-flop circuit as a zero setting signal; the input end of the frequency locking indication unit circuit is connected with the output ends of the first D flip-flop circuit and the second D flip-flop circuit, and the output end of the frequency locking indication unit circuit outputs a frequency locking indication signal. According to the invention, the anti-radiation reinforcement design of the phase frequency detector circuit is realized.

The utility model discloses an anti-interference FPC edge pressing mechanism, and relates to the technical field of edge pressing mechanisms. A vacuum chuck; the FPC body is placed on the surface of the top end of the vacuum chuck; the edge pressing assembly comprises an edge pressing seat, and the edge pressing seat is provided with a bevel edge; a pressing block is arranged on one side of the edge pressing base. One end of the pressing block is fixedly connected with the even pressing head. Edge pressing cylinders are arranged at the bottom ends of the pressing heads; the ash removal assembly is arranged on the side, away from the edge pressing base, of the pressing block. The FPC body is placed at the upper end of the vacuum suction cup, the vacuum suction cup is started, the FPC body is fixed to the vacuum suction cup through the vacuum suction cup, then the edge pressing air cylinder is started, the edge pressing air cylinder drives the pressing block to fall, and when the pressing head and the bevel edge are matched to press the FPC body, the top end of the pressing block is just flush with the surface of the edge pressing base and the surface of the vacuum suction cup. Therefore, the condition of inconvenience in operation on the upper surface is prevented; and by arranging the dust removal assembly, dust on the film is removed when the film is torn.

The invention provides a solid rocket engine test tail flame cooling and guiding device which is used for treating engine tail flame at the tail end of a fuel gas channel and effectively cooling and decelerating the engine tail flame in the engine ignition test process under the condition that related characteristics of an engine ignition test are not affected, the temperature of the test environment is reduced, and the test efficiency is improved. The danger in the test ignition process is reduced, and the pollution of the test to the surrounding environment is reduced. The fire barrier is arranged on the rear side of the solid rocket engine to block the tail flame of the engine, the jetting range and the jetting speed of the tail flame are controlled, the blocked tail flame passes through the edge of the fire barrier, and the problem of cooling of the center tail flame is solved. The honeycomb structure composed of the supporting columns is adopted, the tail flame passes through the gaps of the supporting columns, the multiple spraying heads are arranged to cool, guide and deposit the tail flame, the spraying area of the tail flame is increased, and the cooling and speed reducing effects are good.

The utility model discloses a dust treatment device of a bulk material conveying system, which relates to the technical field of dust treatment devices and comprises a material conveying belt, side plates are fixedly mounted on two sides of the material conveying belt, a top plate is fixedly mounted at the tops of the side plates, and a dust hood is fixedly mounted at the bottom of the top plate. A dust suction port is formed in the bottom of the dust suction cover, two impeller fans are installed on the top of the top plate and communicate with the interior of the dust suction port, a conveying pipe is fixedly installed at the output ends of the impeller fans, and a water tank is arranged below the material conveying belt. The dust collection device has the beneficial effects that through the arrangement of the dust collection cover, the dust collection opening, the impeller fan, the conveying pipe, the water tank, the treatment box, the collection drawing box, the filter cloth, the water distribution plate, the nozzle, the water pump, the water guide pipe and the water pumping pipe, dust generated during material conveying can be collected, sprayed and subjected to dust falling treatment; therefore, the situation that operators and the environment are injured by flying dust is avoided.

The invention discloses a compound microbial preparation for laying hen production, brown sugar fermentation liquor and application thereof. The compound microbial preparation is prepared from clostridium butyricum NIP1021, bacillus cereus 2022B1, bacillus licheniformis 2022B2, enterococcus faecium 2022B6 and paenibacillus polymyxa CP7, and the compound microbial preparation can ensure normal fermentation in a low-pH environment during fermentation of brown sugar, so that infectious microbe pollution is avoided; the prepared compound microbial preparation fermentation liquor can promote the growth performance of laying hens, improve the intestinal flora balance of the laying hens, promote the intestinal health of the laying hens, improve the organism immunity of the laying hens and reduce the use of antibiotics.

The utility model provides a device for preparing calcium phosphate by recycling waste phosphoric acid in electronic industry, which comprises a primary reaction tank, a cooling unit, a secondary reaction tank, a high-pressure filter pressing unit and a drying unit, an outlet of the primary reaction tank is connected with an inlet of the cooling unit, an outlet of the cooling unit is connected with an inlet of the secondary reaction tank, and an outlet of the high-pressure filter pressing unit is connected with an outlet of the drying unit. An outlet of the secondary reaction tank is connected with an inlet of the high-pressure filter-pressing unit, an outlet of the high-pressure filter-pressing unit is connected with an inlet of the drying unit, the drying unit is connected with an external steam source, and the drying unit is provided with a discharge port. The utility model solves the problem of how to efficiently convert waste phosphoric acid into active calcium phosphate in the prior art.