Abstract: The present invention provides a rapid viral nucleic acid detection kit prepared by using a novel RecA enzyme and the detection method thereof. By editing the recombinase RecA gene, the expressed RecA protein has better solubility and recombinase activity. The RecA protein is used to prepare recombinase dry powder, further the formula of the recombinase dry powder and the ratio are optimized; and specific primers for the ASFV p72 gene are designed for the rapid nucleic acid detection of ASFV, significantly improving the detection sensitivity. In addition, the detection time is short, which effectively avoids missed detection and false detection, and helps prevention of epidemic.

Abstract: Disclosed are a compound as shown in formula (I), and an isomer thereof or a pharmaceutically acceptable salt thereof, and involved is the use thereof in the preparation of drugs for treating FGFR-associated diseases.

Abstract: A ternary cathode material, a preparation method thereof, and a lithium ion battery are provided. The ternary cathode material comprises a micron-sized single-crystalline particle structure of LiNi1-x-y-zCoxMnyMzO2, wherein 0.6<1-x-y-z<1.0, 0<x<0.2, 0<y<0.3, and 0<z<0.1; and the single-crystalline particle structure comprises a central area and surface layer area, wherein the molar ratio of elements in the central area meets Ni:Co:Mn:M=a1:x1:y1:z1, and the molar ratio of elements in the surface layer area meets Ni:Co:Mn:M=a2:x2:y2:z2, in which 0.85?a1<1.0, 0<x1?0.1, 0<y1?0.15, 0?z1?0.05, 0.3?a2?0.7, 0.2?x2, y2?0.4, and 0?z2?0.05, provided that z1 and z2 are not simultaneously zero, and a1/(a1+x1+y1+z1)>a2/(a2+x2+y2+z2); and M comprises at least one selected from Al, Mg, Ti, Ga, Nb, Zr, W, Mo and Ta.

Abstract: A cathode material, a preparation method thereof, and a lithium ion battery are provided. The cathode material comprises cathode material particles comprising a central area, an intermediate layer, and a surface layer, wherein the intermediate layer is located between the central area and the surface layer; and the central area comprises a lithium oxide, the intermediate layer comprises elemental sulfur, and the surface layer comprises elemental sulfur and elemental carbon, in which the lithium oxide comprises ?LiNimConX(1-m-n)O2.(1-?)Li2MO3, where 0???1, X includes at least one selected from Mn, Al, Nb, and Fe, M includes at least one selected from Mn, Al, Nb, Fe, Co, and Ni, 0?m<1, and 0?n<1.

Abstract: A cathode material, a preparation method thereof, a lithium ion battery and a vehicle are provided. The cathode material comprises elemental sulfur and secondary particles formed by packing primary particles, wherein the secondary particles have a hollow structure, and the elemental sulfur fills in gaps among the primary particles and in the hollow structure. The primary particles comprise a lithium oxide, wherein the lithium oxide comprises ?LiNimConX(1-m-n)O2·(1??)Li2MO3, 0???1, X comprises at least one selected from Mn, Al, Nb, and Fe, M comprises at least one of Mn, Al, Nb, Fe, Co, and Ni, 0?m<1, 0?n<1, and 0?m+n<1.

Abstract: A cathode material, a preparation method thereof, a lithium ion battery and a vehicle are provided. The cathode material comprises cathode material particles comprising a central area, and a surface layer area, wherein the central area comprises lithium oxide, and the surface layer area comprises lithium oxide and elemental sulfur, in which the lithium oxide comprises ?LiNimConX(1-m-n)O2·(1??)Li2MO3, where 0???1, X comprises at least one selected from Mn, Al, Nb, and Fe, M comprises at least one selected from Mn, Al, Nb, Fe, Co, and Ni, 0?m<1, and 0?n<1.

Abstract: Disclosed are a compound as shown in formula (I), and an isomer thereof or a pharmaceutically acceptable salt thereof, and involved is the use thereof in the preparation of drugs for treating FGFR-associated diseases.