Abstract: Provided are a filtration device and an air conditioner. The filtration device is applied in the air conditioner, and includes a frame and a filtration structure. The filtration structure is detachably connected to the frame by a first buckle. The frame is configured to be mounted at a housing of the air conditioner. In the filtration device according to the present disclosure, the filtration structure is detachably connected to the frame by the first buckle. After the filtration device is used for a period of time, a user can disassemble the filtration structure for cleaning, maintenance, or replacement.

Abstract: A method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library. The method includes establishing a watermark-containing QR code library; tracing a QR code watermark image; and verifying the QR code watermark image. Watermark-containing QR codes are generated by a QR code generation module and a watermark library, and the watermark-containing QR codes are constructed as the watermark-containing QR code library. The watermark-containing QR code library is used to verify the QR code watermark image, and the QR code watermark image is obtained by tracing the watermark-containing QR codes. In the method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library, an image watermark library is designed, so that the embedding of a watermark is no longer single.

Abstract: A method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library. The method includes step 1. establishing a watermark-containing QR code library; step 2. tracing a QR code watermark image; and step 3. verifying the QR code watermark image. Watermark-containing QR codes are generated by a QR code generation module and a watermark library, and the watermark-containing QR codes are constructed as the watermark-containing QR code library. The watermark-containing QR code library is used to verify the QR code watermark image, and the QR code watermark image is obtained by tracing the watermark-containing QR codes. In the method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library, an image watermark library is designed, so that the embedding of a watermark is no longer single.

Abstract: Water-soluble polyurethane according to the present invention is obtained from polyalkylene glycols, diisocyanates, and comb-shaped hydrophobic diols represented by the following general formula (3): wherein each of R1, R2 and R3 is a hydrocarbon group; each of Y and Y′ is hydrogen, a methyl group or a CH2Cl group; each of Z and Z′ is oxygen, sulfur or a CH2 group; n is an integer of 0 to 15 when Z is oxygen and is 0 when Z is sulfur or a CH2 group; n′ is an integer of 0 to 15 when Z′ is oxygen and is 0 when Z′ is sulfur or a CH2 group. The water-soluble polyurethane is used as, for example, an extruding auxiliary for cement materials, a mortar thickening agent, an underwater concrete thickening agent, a ceramics forming binder and a moisturizer for hair cosmetics, all of which are characterized by excellent water retention and high shape retention.

Abstract: A water-soluble polyurethane obtained from water-soluble polyalkylene glycol, polydiisocyanate, and comb-shaped hydrophobic diol represented by the following general formula: wherein R1 is a hydrocarbon group of 1 to 20 carbon atoms; each of R2 and R3 is a hydrocarbon group or halogenated hydrocarbon group of 4 to 21 carbon atoms; each of X, X′ and X″ is an alkylene group of 2 to 10 carbon atoms; the hydrogen atoms of the above alkylene group may be substituted with an alkyl group, chlorine or an alkyl chloride group; each of Z and Z′ is oxygen, sulfur or a CH2 group; R4 is an alkylene group of 2 to 10 carbon atoms in all; k is an integer of 0 to 15; n is an integer of 0 to 15 when Z is oxygen and is 0 when Z is sulfur or a CH2 group; n′ is an integer of 0 to 15 when Z′ is oxygen and is 0 when Z′ is sulfur or a CH2 group.

Abstract: Water-soluble polyurethane according to the present invention is obtained from polyalkylene glycols, diisocyanates, and comb-shaped hydrophobic diols represented by the following general formula (3): 1