有效半減期 的英文怎麼說
中文拼音 [yǒuxiàobànjiǎnqī]
有效半減期
英文
effective half-life- 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
- 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
- 半 : Ⅰ數詞1 （二分之一） half 2 （在 中間的） in the middle; halfway 3 （比喻很少） very little; the l...
- 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
- 有效 : effective; valid; efficacious
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The numerical results indicate that the deformation within the solid inner core is very small. however, in the fluid outer core, the changes of the displacement with relatively low spherical harmonic degree ( n < 10 ) is very complicated via the radius, due to the resonance near the eigenfrequenies of the core long - period oscillations. while the spherical harmonic degree of the loading is larger than 10, the deformation and the gravitational perturbation in the core are very small, and the earth ' s deformation response is dominantly represented as the radial displacement in the elastic mantle
研究了地球在日月引潮力和表面負荷作用下的形變特徵，數值計算結果表明，在固體內核中的形變很小，由於在長周期核模本徵頻率附近的共振，液核中低階（ n 10 ）位移隨半徑的變化非常復雜，當負荷階數超過10時，地核中的形變和擾動位都很小，地球的響應主要表現為彈性地幔中的徑向位移，且隨深度增加急劇減弱，地表負荷love數與信號頻率的依賴關系很弱，給出了體潮love數計算的一種有效的近似處理方案。Experiments show that fpmine runs two times as fast as the most recently proposed algorithm fp - growth and saves half the memory ; moreover, our algorithm has a quite good time and space scalability with the number of transactions, and has an excellent performance in dense database mining as well ; spf has excellent time and space efficiency ; fpmine - spf algorithm has a far taster speed in association rules mining than the widely used apriori algorithm and has wonderful scalability. association rules mining always generates too many rules, which makes ii difficult to pick the valuable rules where from
實驗表明，在相同數據集上，與fp - growth演算法相比，演算法fpmine的挖掘速度提高了一倍以上，而所需的存儲空間減少了一半；隨著數據庫規模的增大，演算法fpmine具有很好的可伸縮性；對于稠密數據集，本文演算法也具有良好的性能； spf演算法具有極好的時空效率； fpmine - spf演算法挖掘關聯規則的速度遠快于較長期以來廣泛使用的apriori演算法，並有相當好的可伸縮性。
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