Here we report the first direct Rb-Sr dating of pyrites and ores using sub-sampling from lode gold deposits in Linglong, Jiaodong Peninsula, which is a supra-la
A class of higher order neutral difference equations is considered and some sufficient conditions are obtained for all solutions to oscillate or tend to zero.
Stability criteria for a weak relativistic beam-plasma interaction in a strong magnetic field are found.Two beam modes occur,ω≈kzc and ω≈kzc-ωc.The dispers
A new approach to model viscosity in the conservation of momentum equations is presented and discussed. Coefficient of viscosity is modeled in such a way that i
Because of wide variation in gray levels and particle dimensions and the presence of many small gravel objects in the background, as well as corrupting the imag
In multiangular remote sensing observations,the variable range of the solar zenith angle (SZN) is narrow.We takes the linear kernel-driven model as an example t