Abstract: Disclosed in the present invention are polymorphic forms of a compound and a preparation method therefor and an application thereof. A crystal form III of a compound A uses Cu—K? radiation, and X-ray powder diffraction expressed at 2? angles has characteristic peaks at 12.15±0.20°, 15.98±0.20°, 16.62±0.20°, 17.14±0.20°, 24.32±0.20°, and 26.08±0.20°. A crystal form VII of the compound A uses Cu—K? radiation, and X-ray powder diffraction expressed at 2? angles has characteristic peaks at 12.94±0.20°, 14.41±0.20°, 15.64±0.20°, 17.25±0.20°, 21.75±0.20°, and 24.23±0.20°. The polymorphic forms prepared by the present invention are good in stability, and can be stably stored under the conditions of high temperature and low relative humidity.

Abstract: A pyrimidine carboxamide compound as shown in formula I, or a tautomer, mesomer, racemate, enantiomer and diastereomer thereof, or a mixture form thereof, or a pharmaceutically acceptable salt thereof, which can be used as a Vanin enzyme inhibitor, and can be used to prepare a medicament for treating various conditions, including Crohn's disease and ulcerative colitis.

Abstract: Disclosed are a pyrimidine carboxamide compound and an application thereof. Further provided are a pyrimidine carboxamide compound represented by formula (I), or a tautomer, mesomer, racemate, enantiomer, or diastereomer thereof, a mixture form thereof, or a pharmaceutically acceptable salt thereof. The compound can be used as a Vanin enzyme inhibitor, and can be used to prepare a drug for treating various diseases, including Crohn's disease, ulcerative colitis, and so on.

Abstract: The present invention discloses a hollow fiber membrane material for a high-humidification hydrogen fuel cell humidifier and a preparation method and application thereof, and belongs to the technical field of fuel cell materials. The present invention provides a hollow fiber membrane material, and the preparation method includes: mixing and dissolving sulfonated polyarylene ether nitrile resin, a pore-forming agent, a modified nano-filler and a solvent for still standing; performing vacuumizing; coagulating a spinning fluid in an internal coagulant bath and an external coagulant bath; and washing and drying an obtained crude product to obtain the hollow fiber membrane material.

Abstract: The present invention discloses an N-alkyl-N-cyanoalkylbenzamide compound of General Formula I, an intermediate of General Formula II used to prepare the compound, wherein R1 is selected from halo or C1-C3 alkyl; R2 is selected from halo or CN; R3 is selected from halo, or C1-C3haloalkyl; R4 is selected from halo; R5 is selected from H or halo; R6 is selected from C1-C3alkyl, C1-C3 haloalkyl or C1-C5 alkoxyalkyl; R7 is selected from C1-C5 alkyl; and R8 is selected from hydrogen or C1-C5alkyl. Compared with the compounds in the prior art, the compound of General Formula I has a higher activity at a low concentration. Particularly, the compound of the present invention still has 60% or higher of the insecticidal activity at a concentration below 1 ppm. This greatly reduces the amount of the compound used and the residue of the compound in farmland, and is thus environmentally friendly.

Abstract: The present invention provides a method, computer system and computer program product for generating a defect description. According to the method, one or more keywords from a user for depicting a defect encountered when using a software product are received. A search for one or more terms matching at least one of the keywords and a path corresponding to the one or more terms in an operation map is conducted, wherein the operation map includes terms and paths describing all possible operations of a software product based on a user interface of the software product. And in response to the one or more terms matching the at least one of the keywords and a corresponding path are searched out, a defect description based on the one or more matched terms, the corresponding path and the received keywords is generated.

Abstract: The present application discloses a device and a method for high-throughput polarization imaging of zebrafish, comprising: a light source; a polarizing plate, comprising a first polarizing plate and a second polarizing plate having axes thereof coinciding with each other and connected with a rotating motor, the rotating motor drives the first polarizing plate and the second polarizing plate to rotate around the axes thereof respectively; a sample cell, wherein a glass capillary tube, which is arranged in a water bath in the sample cell, has freedom of rotation around its own axis; an injection pump, connected with the glass capillary tube through a hose; imaging equipment, comprising an objective lens, a cylindrical lens and a camera; the light source, first polarizing plate, sample cell, objective lens, second polarizing plate, cylindrical lens and camera are located on the same straight line and perpendicular to the glass capillary tube.

Abstract: The present invention discloses an N-alkyl-N-cyanoalkylbenzamide compound of General Formula I, an intermediate of General Formula II used to prepare the compound, wherein R1 is selected from halo or C1-C3 alkyl; R2 is selected from halo or CN; R3 is selected from halo, or C1-C3haloalkyl; R4 is selected from halo; R5 is selected from H or halo; R6 is selected from C1-C3alkyl, C1-C3 haloalkyl or C1-C5 alkoxyalkyl; R7 is selected from C1-C5 alkyl; and R8 is selected from hydrogen or C1-C5alkyl. Compared with the compounds in the prior art, the compound of General Formula I has a higher activity at a low concentration. Particularly, the compound of the present invention still has 60% or higher of the insecticidal activity at a concentration below 1 ppm. This greatly reduces the amount of the compound used and the residue of the compound in farmland, and is thus environmentally friendly.

Abstract: The present invention provides a method, computer system and computer program product for generating a defect description. According to the method, one or more keywords from a user for depicting a defect encountered when using a software product are received. A search for one or more terms matching at least one of the keywords and a path corresponding to the one or more terms in an operation map is conducted, wherein the operation map includes terms and paths describing all possible operations of a software product based on a user interface of the software product. And in response to the one or more terms matching the at least one of the keywords and a corresponding path are searched out, a defect description based on the one or more matched terms, the corresponding path and the received keywords is generated.

Abstract: The present disclosure discloses a method for reusing an ink cartridge, a system thereof, a readable storage medium and a reused ink cartridge, which belong to ink cartridge in printing field. The method includes detecting each of a plurality of heating elements in the ink cartridge, wherein the plurality of heating elements are located on both sides of nozzles of the ink cartridge; determining one of the plurality of heating elements which is not matched with a printer as a target heating element according to detecting result; and burning out the target heating element. Therefore, the target heating element will not be detected, the ink cartridge will match with the printer in new version, resulting in the ink cartridge can be reused and applied in the printer in new version.

Abstract: The present disclosure discloses a method for reusing an ink cartridge, a system thereof, a readable storage medium and a reused ink cartridge, which belong to ink cartridge in printing field. The method includes detecting each of a plurality of heating elements in the ink cartridge, wherein the plurality of heating elements are located on both sides of nozzles of the ink cartridge; determining one of the plurality of heating elements which is not matched with a printer as a target heating element according to detecting result; and burning out the target heating element. Therefore, the target heating element will not be detected, the ink cartridge will match with the printer in new version, resulting in the ink cartridge can be reused and applied in the printer in new version.