stand or fall by this 中文意思是什麼

stand or fall by this 解釋
成敗繫於此舉
  • stand : vi (stood )1 站立,站起來 (up); 站住,站定 (opp sit lie kneel couch squat)。2 (房子等)在...
  • or : or2,〈古、詩〉在…之前,比…更早〈普通用or ever, or e'er〉。n. 【徽章】黑金色,黑色。
  • fall : vi (fell; fallen )1 落下;散落,(毛發等)脫落;降落;(水銀柱等)下降;(物價)下落,跌落;(...
  • by : adv 1 在側,在旁,在附近。2 (擱)在一邊,(放)到旁邊,(存)在一旁;收著。3 (由旁邊)經過,過...
  • this : pron 〈指示代詞〉1 這,這個,這事,這人。2 這時;這里。3 下面所說的事,剛才(以上)所說的事。4 (...
  1. The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed

    較好地解決多阻尼比反應譜擬合問題;本文方法通過一次運行就能獲得一組具有集系特性的地震動,在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢,產生的人造波或人造波集系可滿足工程抗震設計需要;在遺傳演算法中,交叉概率和變異概率是影響收斂速度的重要參數,本文採用的改進自適應交叉概率和變異概率,可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率,以保證演算法始終以較好的速度向pareto最優解集逼近。
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