Abstract: A composition and use thereof. The composition comprises an active component a and an active component b; the active component a is a compound as shown in general formula A; and the active component b is at least one of compounds which have insecticidal, acaricidal or bactericidal activity and are different from the compound as shown in general formula A. The composition has the advantages of synergistic effect and expanding prevention and treatment spectrum, and can be used for preventing and treating various pests, particularly mite damage, and plant diseases caused by various fungi, bacteria, nematodes and viruses.

Abstract: A method for monitoring environmental data and a monitoring system are provided. The method includes that: a second server receives first environmental data from a first server; the second server determines that data loss occurs in the first environmental data; the second server obtains lost data in the first environmental data from the first server; the second server obtains second environmental data according to the first environmental data and the lost data; and responsive to a concentration of a sampled gas in the second environmental data exceeding a preset concentration threshold, the second server sends warning information to a terminal device.

Abstract: Disclosed is an impurity removal and modification method for pyrolysis carbon black of waste tires, the method comprising: dispersing pyrolysis carbon black of waste tires in an alkali solution of potassium ferrate; adding hypohalite; leaving to stand for layering; and performing centrifugation and washing on a lower-layer slurry to obtain a stably dispersed pyrolysis carbon black/water suspension. This modification method can be operated simply and easily; and by means of the method, ash in pyrolysis carbon black of waste tires can be effectively removed, and the pyrolysis carbon black is then stably dispersed in water. In addition, the modification method is low in production cost, and is green and environmentally friendly, and a waste liquid thereof can be recycled.

Abstract: A preparation method includes 1) dispersing cellulose nanocrystal in water and adjusting pH to 7; 2) adding carboxylate to the aqueous dispersion of the step 1), and stirring until uniform; and 3) adding a monomer and a ceric ammonium nitrate initiator to the system of the step 2), reacting for 0.5-3 h to obtain a precipitate, and subjecting the precipitate to suction filtration, washing, and drying to obtain the cellulose nanocrystal powder. By adding a small amount of carboxylate into a cellulose nanocrystal graft polymer modification system initiated by ceric ammonium nitrate, hydrolysis of cerium ions can be inhibited through complexation of the carboxylate to the cerium ions which play an initiating role in ceric ammonium nitrate, so that ceric ammonium nitrate can initiate the polymerization reaction under acid-free conditions, thereby achieving polymerization of polyvinyl acetate monomer on the surface of cellulose nanocrystals.

Abstract: The present application discloses a water replenishment structure, an atomization device and a humidifier. the water replenishment structure includes: a floating member located in the water storage container; a linkage whose one end connecting with the floating member, the other end extending out from the water storage container through the water inlet hole, a radial size of the linkage is smaller than that of the water inlet hole; a sealing gasket provided outside the water storage container and provided corresponding to a water inlet end of the water inlet hole, a radial size of the sealing gasket is larger than that of the water inlet hole, the sealing gasket is connected with a part of the linkage extending out from the water storage container to move with a movement of the linkage.