einstein model 中文意思是什麼
einstein model
解釋
愛因斯坦振動模型-
Einstein s original cosmological model, introduced by him in 1917, was a static, homogeneous model with spherical geometry
愛恩斯坦在1917年發表的宇宙模型是一個靜態均勻及具有球狀對稱的宇宙。 -
The exact solution of the einstein field equation is gained under the popular conditions when ， the new general expression of the density function is deduced. ， the new solution of the cosmic scale factor is further derived out under different evolution model
求解了當時一般情況下標準宇宙模型方程，通過一般地求解不同密度物質情況下的暴漲宇宙演化方程，得到了的一般物質密度的表達式，解出了表徵宇宙標度因子不同演化的一般新解，並通過對不同情況下標準宇宙方程的求解，證明參數的正負取值直接影響宇宙尺度因子的表達形式。 -
When the performance degradation is caused by the discrete cumulative damages, the degradation failure model based on renewal process is proposed and used to analyze the reliability of metallized film pulse capacitors in the laser device. when the degradation process is continuous, two models based on wiener - einstein and gamma processes are presented respectively. because it is difficult to obtain an analytical expression of the failure model using the latter method, we present a failure model based on monte - carlo simulation
根據該模型的特點，給出了基於參數回歸分析的統計推斷方法，分別提出基於比例危險模型的競爭失效分析方法和基於位置-尺度模型的競爭失效分析方法; （ 4 ）對于隨機失效閾值問題，研究並給出了相對失效標準下的退化失效模型和分析方法;對強度退化的動態應力-強度干涉失效進行分析，提出了周期性應力作用下的動態應力-強度干涉失效可靠性模型和復合應力作用下動態應力-強度干涉失效可靠性模型。 -
Because einstein thought he needed to model a static universe, he introduced his “ cosmological fudge factor ” to balance the attractive gravity of matter
因為愛因斯坦當時認為他需要建構一個靜態的宇宙，因此引入一個假想的宇宙參數來平衡物質間的重引力。 -
However, even einstein himself could not accept that our universe is ever - changing. he therefore constructed a " steady state universe " model by introducing a bizarre term, cosmological constant, into his theory
可是，就連愛因斯坦本身也無法接受一個常變的宇宙，於是他提出了一個在非常特殊情況下才能出現的恆穩宇宙。
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