退化序列 的英文怎麼說
中文拼音 [tuìhuàxùliè]
退化序列
英文
degenerate series-
Three amendments are made to neighbor - joining method : first, a more precise evolution model is used to calculate the distance between sequences ; second, sequences are used to generate multiple typological structures, and hence compensate the shortcoming of neighbor - joining method, which can generate only one typological structure ; third, back mechanism is introduces to avoid the negative branch length in distance method and get a more accurate tree
本文對距離法中的鄰接法進行了三點改進: 1 .使用更精確的進化模型來度量序列之間的距離，降低因模型而帶來的誤差; 2 .通過隊列產生多個拓撲結構，解決了鄰接法只能產生一個拓撲結構的缺陷; 3 .引入回退機制，消除了距離法中負枝長的產生，得到的樹更準確。On this basis, adopt the plural linear regression method, regard peasant ' s per capita income as the dependent variable, per capita agricultural land area, unit agricultural land area chemical fertilizer use amount, agriculture total value account for gdp proportion and land degradation the index data ( land degradation fictitious variable, land degradation percentage and land degradation the array variable of the degree ) as the independent variable
在此基礎上，採用多元線性回歸方法，以農民人均收入為因變量，人均農業用地面積、單位農業用地面積化肥使用量、第一產業總值佔gdp比例和土地退化指標（土地退化與否的虛擬變量、土地退化百分比和土地退化程度的序列變量）為自變量來分析。Five vegetation communities : herbosa, shrubs, coniferous forest, theropencedrymion, and evergreen broad - leaved forest in the red soil region of the lijiang valley are selected as the five successive stages of the typical restoration process of degraded ecosystems to study variation of structure and biomass of the vegetation of the five different stages
摘要利用時空替代原理，選取灕江流域紅壤區退化生態系統恢復過程中具有代表性的草叢、灌叢、針葉林、針闊混交林、常綠闊葉林5個階段作為演替序列，研究自然恢復過程中各演替階段的植被結構動態和生物量變化。In chapter five, let { xt, i 1 } be - mixing sequences with identical distributions, which belong to domain of normal attraction with non - generational and stable distribution. with probability one, we have limsup a. s
第五章，設x _ n ， n 1是同分佈-混合序列，其分佈屬于特徵指數為（ 0 2 ）的非退化穩定分佈的正則吸引場，證明了依概率1有It is audiovisual and effective for 3 - d figure to distinguish deterioration conditions, which is proposed by wavelet analysis of space position serials
文中所提出的通過對空間位置序列的小波分析而獲得的三維特徵圖對退化狀態的判斷直觀、有效。( 2 ) some studies are made for the subject of various effects on wave propagation and ground motion of multi - dry, multi - saturated, and alternate dry and saturated soil layers. a comprehensive computer program is compiled, accounting for soil dilatancy, linear and non - linear constitutive relation, rigidity degradation and suiting to any combinations of soil layers, dry and / or saturated with different thicknesses, properties, continuity conditions at interfaces, and inputs at base and top boundaries. from the numerical results obtained for a quite large number of typical cases, some knowledge of general trends of response for, especially, the cases of alternate dry and saturated soil layers are gained both quantitatively and qualitatively
（ 2 ）對不含水土層分層排列、飽水土層分層排列、不含水土層與飽水土層分層交錯排列情況下對波傳播和地面運動的影響做了一些研究，考慮到土壤的剪脹性、線性和非線性本構關系，剛度退化等因素，編制了可適用上述各種情況和任意多土層（包括含水或不含水、力學性質不同、厚度不同、邊界連續條件不同等） ，在不同基底輸入或上邊界輸入作用下的通用分析程序，通過對相當數量的典型情況進行的分析計算，得到了一些趨勢性的認識，特別是對飽水與不含水土層分層交錯情況，取得了一些新認識。The paper exploits then method of combining the simulated annealing algorithm with genetic algorithm for the question and designs the coding way which based on ordinal characters, builds up fitness function on the basis of penalty function, adopts the basal technology, such as crossover, mutation etc. to deal with the model and put forward adjustable algorithms for trains occupying time sets
將模擬退火演算法和演化演算法混合起來運用於該問題，設計有序的字元串編碼方法，構造了基於罰函數的適應度函數，採用交叉和變異等技術，求解該模型。並提出了車列佔用時區調整的相關演算法。After some numerical analyses, the effects of dilatancy, constitutive relation, rigidity degradation, thickness, properties, continuity conditions at interfaces are analyzed. ( 4 ) an introduction of the background that makes us present this study is made
通過一系列數值計算，分析了剪脹、本構關系、剛度退化、土層厚度、孔隙率、邊界條件等對液化的影響，編制了計算程序。We divide document image into two parts - text and background. text area is regarded as a series of random variables with 0 - 1 distribution and background area as a series of random variables with degenerate distribution. because the median filter is robust for degenerate distribution, it can reduce the noise
文本圖像通常可以轉換成二值圖像，我們可以把文本圖像的文字區域和空白區域分別理解為兩個相互獨立的隨機變量序列的依次觀測，其中一個是服從兩點分佈，而另一個服從退化的單點分佈。4. because genetic algorithm obtains local optimal solution at times, an approach was advanced that incorporates simulated annealing into genetic algorithm to improve the performance of genetic algorithm. an annealing operation is added and can improve the convergence rate evidently in multiple sequence alignment
針對遺傳演算法容易陷入局部最優解的缺點，提出模擬退火演算法與遺傳演算法相結合的思想，在遺傳操作中加入退火操作，可明顯提高多序列比對進化後期的收斂速度。分享友人