Application of unifac method to the mathematic simulatio n distillation of methanol 法在甲醇精餾過程模擬計算中的應用
Considering the absence of the study about the displacements of the adjacent structures during the excavating process of deep foundation excavations , the result can be used as reference for the relevant numerical simulatio n and other research 由于現(xiàn)階段有關深基坑開挖過程中近鄰建筑物變形的研究較少,本課題的研究成果還將對今后相關的數(shù)值模擬分析及其它研究具有參考價值。
Then a new improving scheme of ga which we call it hgsaa ( hybrid gentic - simulatd annealing algorithm ) is put forward based on the existing condition , and the new algorithm works more efficiently than the old one because it has not only ga ' s global searching capability but also saa ' s local searching capability . the simulatio results show the new algorithm is more effective than ga . the minimum cost is reduced and the clustered network structures have been produced with the onus are evenly distributed or clustered around the obds and the clustered network structures are well ordered with a satisfactory degree of symmetry after the hgsaa has runed 100 generation 吏為重要的是,本文充分利用了混合遺傳算法的思想,將遺傳算法和模擬退火算法的優(yōu)勢相結合,使得遺傳算法的全局尋優(yōu)能力與模擬退火算法的局部尋優(yōu)能力在該問題的求解過程中充分發(fā)揮了作用,由本文實現(xiàn)的混合遺傳一模擬退火算法明顯地改進了算法的效果,由此生成的網(wǎng)絡方案的建設費用得到極大減少,同時拓撲結構的優(yōu)化結果也比單純的遺傳算法的效果好得多。
But the complex analytical signal ( cas ) theory can erase this spatial sigu - larity . in this section , gauss , hyperbolic and lorentz pulsed gaussian beam have been derived and compared svea and cas solution by numerical simulatio n . in section 3 , by using fourier transform technique and applying the paraxial approximation in frequency domain , we derive an integral solution for the transverse and longitudinal components of the light field propagating in free space 接著,考慮了幾種特殊的脈沖gauss光束( pulsedgaussianbeam ) ,結果顯示,在此情況下緩變包絡近似( slowly - varyingenvelopeapproximation )理論已不再有效,其失效的原因是,該理論導致了脈沖光束解的空間奇異性,并使脈沖光束不再具有符合物理意義的光束行為,而通過復解析信號的分析方法可以消除這種空間奇異性。