sampled value 中文意思是什麼

sampled value 解釋
抽樣值
  • sampled : 取樣的
  • value : n 1 價值;重要性;益處。2 估價,評價。3 價格,所值;交換力。4 (郵票的)面值。5 等值;值得花的代...
  1. The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu

    另外,通過rapd資料的聚類分析及相關性分析研究,發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子(主要是土壤因子)相關,其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量( w ) 、鉀鈉離子濃度( k + na )和氯離子濃度( cl )呈顯著的正相關( p 0 . 05 ) ,還與土壤中有機質( som ) 、全氮( nt )和全磷( pt )含量呈顯著的負相關;同時,角果藜種群的遺傳多樣性水平與土壤中有機質( som )和全氮( nt )含量呈顯著的正相關,而與co _ 3 ~ ( 2 - )濃度呈顯著的負相關;除此之外,其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著(卜0 . 05 ) 。
  2. 3. it is exert through cultivated in a pot experiment cultivation for two month lindane and ddt original pesticide experiment after two month to get soil examine appearing value very low to find to observe. soil sampled form j and n farm which have used lindane and ddt for 40 years, the analysis result showed that the residue of the two pesticides are very high. lindane remains and reaches as high as 996. 06 g kg - 1, and ddt is 3382. 75 g kg - 1 4

    經過盆栽實驗兩個月的培養觀察發現施加到土壤中的林丹與ddt原藥在兩個月的實驗后檢出值較低具有使用林丹、 ddt四十年歷史的北京近郊j 、 n農場中兩種農藥殘留較高,林丹殘留最高可達: 996 . 06 g ? kg ~ ( - 1 ) , ddt殘留最高可達: 3382 . 75 g ? kg ~ ( - 1 ) 。
  3. Two methods were used to provide water quality ratings in bio - assessment using biotic index ( bi ), ( 1 ) using the sampled sites meet the criteria for undisturbed and minimally impaired conditions, the confidence in the distribution of bi value for the 75th percentile to be used as the criterion dividing " unimpaired " form " impaired ". any values below the 75th percentile were considered as " excellent ", and values above the 75th percentile, was quadrisected for different water quality ratings

    採用兩種方法研究m指數劃分水質級別的標準: ( 1 )無污染樣點的m指數值法,以75分位數值作為最清潔水質標準,將高於此值的可能分佈范圍一等分,分別代表不同的水質級別zk )所有樣點(污染與無污染樣點)的bi指數值法,以5分位數值作為最清潔水質的標準,將高於此值的可能分佈范圍4等分,分別代表不同的水質級別。
  4. Even if the fault spread from external fault zone to internal fault zone, the differential protection can avoid misoperation. main criterion of protection is composite - percentage current differential algorithm according to every sampled value, which can accelerate the protection ' s trip, reduce large amounts of calculation and have strong stability to ta saturation

    本文採用基於采樣值的比率制動式電流差動保護演算法作為保護的主判據,可以明顯提高保護動作速度和減少計算量;具有較強的抗ta飽和能力,在區內故障時無制動,區外故障時有極強的制動特性。
  5. Primers of ecori were signed with fluorescent dye and four pairs of primers were selected from twenty - four pairs. 261 dna fragments were generated by the four pairs of primers in forty - three individuals sampled. percentage of polymorphic bands is 51 %, the value of shannon index ( i ) is 0. 086 and nei ' s gene diversity ( h ) is 0. 151

    統計這些aflp表型帶標記,用popgene軟體計算各種多樣性數據( ppb值為51 , shannon多樣性指數為0 . 086 , nei ' s基因多樣性值為0 . 151 ) :用ntsys軟體計算各個樣品間的相似性系數,並用upgma法基於相似性系數進行聚類分析,構建樹狀圖,它們可反映出元寶山冷杉種群內個體間的遺傳關系。
  6. Then, the definition of high order cumulants and the value of digital modulation signals ’ high order cumulants are presented. according to calculate the value of base band signals ’ high order cumulants, 4ask, 2fsk, 4fsk, bpsk, qpsk, 16qam can be distinguished. this method is demonstrated by simulation data and sampled data

    接著,本文介紹了高階累積量的定義和多種數字調制信號高階累積量的值,通過計算基帶信號的高階累積量,可以對4ask 、 2fsk 、 4fsk 、 bpsk 、 qpsk 、 16qam六種信號進行分類,利用模擬信號和實際采樣信號對該方法進行了論證,該方法可以在低信噪比條件下實施。
  7. This results in a decimal value between 0 and 1 for any points being sampled between the two ground locators

    結果將在0 1之間的十進制的數值,因為任何被采樣點都是在兩個地面的定位器之間。
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