A continuous family of quasilocal exact conservation laws is constructed in the anisotropic Heisenberg (XXZ) spin-1/2 chain for periodic (or twisted) boundary conditions and for a set of commensurate anisotropies densely covering the entire easy plane interaction regime.All local conserved operators follow from the standard (Hermitian) transfer ope
To realize a quantitative expression of change laws of the fracture surface shear strength with hydrochemical damage and to obtain optimal weakening effect of solution on the fracture surface strength, KEYRING hard roof sandstone specimens containing hydraulic fracture surfaces from the Tashan Coal Mine located in Datong were subjected to a shear t
Purpose: analysis of the leading factors of special physical fitness of athletes from acrobatic rock and roll at the stage of preliminary basic training.Material & Methods: 10 sports couples took part in the study (10 male partners, 10 female partners).The research methods are: theoretical analysis and synthesis of data from special scientific and
We investigated the effect of feed deprivation for 45 days on the growth, immunity, and health of 0+marron (Cherax cainii) initially fed for 110 days on various protein sources including fishmeal (FM), poultry by-product meal (PBM), black soldier fly meal (BSFM), soybean meal (SBM), lupin meal (LM), and tuna hydrolysate.The marron were weighed and
The recent huge technological development of unmanned aerial vehicles (UAVs) can provide breakthrough Pochette means of fighting wildland fires.We propose an innovative forest firefighting system based on the use of a swarm of hundreds of UAVs able to generate a continuous flow of extinguishing liquid on the fire front, simulating the effect of rai