Based on the difficulty in computing discrete logarithm and square root on some special conditions, we propose a basic threshold secret sharing scheme for multi
We propose two models in this paper. The concept of association model is put forward to obtain the co-occurrence relationships among keywords in the documents a
A new design of LHM (left-handed material) is suggested, in which the wave vector k and the energy flow S (the Poynting vector) are in the opposite direction. M