Basee on the mixing-length theory of convection, macroscopical stress of the turbulence is used in hydrostatics equation of the stellar structural and evolutionary model. 摘要以恒星結構與演化理論中常用的混合程理論為基礎，將湍流作用表現出來(lái)的宏觀(guān)應力引入恒星結構與演化模型中的流體靜力學(xué)平衡方程。
Using the idea and modeling method of cellular automata, we establish an evolutionary model to simulate the process which many nations annex each other through war. 摘要利用元胞自動(dòng)機的思想和建模方法，建立了模擬多個(gè)國家通過(guò)戰爭彼此兼并的演化模型。
