significance limit
1.The teaching obtained through limit concept hes illustrated the action and significance of heuristic teaching
2.The conditions for being stable at unique positive equilibrium point and for the existence of limit cycle of prey-predator system with sparse effect are analysed. The biological significance is discussed.
3.The concentrations of serum total T4 were within normal range (5.73-12.73μg/dl), while that of serum total T3 were above the highest limit of normal control (212 ng/dl) in all the 32 cases, with statistical significance.
4.An exploited predatory-prey system is discussed.The conclusions about nonexistence,existence and uniqueness of limit cycles are obtained by using qualitative and bifurcation methods.The significance of the conclusions are interpreted at the same time.
5.Based on the three postulates of vacuum fluctuation, the preconditions of relativity and quantum mechanics, including velocity limit of any moving particle and energy-frequency relation as well as de Broglie wavelength expression of any matter are reached, and the significance of the study of vacuum fluctuation in the unification of physics theories is indicated.
