遺傳極性 的英文怎麼說

中文拼音 [yízhuànjíxìng]
遺傳極性 英文
genetic polarity
  • 遺 : 遺動詞[書面語] （贈與） offer as a gift; make a present of sth : 遺之千金 present sb with a gener...
  • 傳 : 傳名詞1 （解釋經文的著作） commentaries on classics 2 （傳記） biography 3 （敘述歷史故事的作品）...
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 遺傳 : [生物學] heredity; hereditary; inheritance; inherit
  1. Endangered abies yuanbaoshanensis will probably have been extinct, so it very necessary to studying its genetic diversity with a proper way in order to save this key group of biological diversity in china

    元寶山冷杉是具有重大科學價值的類群，目前它卻處于高度瀕危極待保護狀態，要有效保護和挽救這一作為我國生物多樣性的關鍵類群，選擇合適的方法來研究其遺傳多樣性是非常必要的。
  2. It was suggested that eric - pcr could substitute for rapd in research related to the genetic identification and genetic diversity in auricularia and other edible and medicinal fungi : 2 to a certain extent, genetic differences among auricularia strains tested in this study did not have necessary relativity with their geographical origins respectively ; 3 in this study, genetic diversity in a. polytricha was higher than that in a. auricula : 4 in this study, a. fuscosuccinea had a higher homology to a. auricula than to a. polytricha ; 5 morphological characteristics validated the results from eric - pcr and provided a potential explanation for the higher similarity coefficient between a. auricular and a. fuscosuccinea ; 6 southern hybridization was employed by choosing a strain from a. auricula as a probe which hybridized with a. auricula and a. fuscosuccinea except a. polytricha, further confirming the veracity of the results from eric - pcr ; 7 in this study, isozyme analysis could not cluster the 7 strains from three auricularia species to different groups efficiently ; 8 2 strains from two auricularia species revealed high conservative degree and the restriction fragment patterns by 4 kinds of restricted enzymes showed no diversity

    本研究中，木耳屬2個種的2個菌株在its區域表現出較高的保守性， 4種限制型內切酶的酶切圖譜沒有顯示出多態性；增加內切酶種類及供試菌株數量，有可能獲得具有多態性的限制性內切酶酶切圖譜； 9本實驗中， its區域的真菌特異性引物與真核生物通用引物對于擴增效果無較大差異，擴增片段長度均為650bp左右； 10根據形態學實驗、 eric - pcr實驗以及southern雜交實驗的結果分析，紫木木耳屬種質資源的遺傳鑒定和遺傳多樣性評價耳極有可能是毛木耳種的一個變種; n .本研究中所用的gutc法是一種適用於木耳屬菌株基因組洲a快速提取的方法; 12 .傳統的形態學分類法和現代的分子生物學分類法，兩者的關系是相輔相成，互為驗證
  3. We improved the theorem of inverse limits of hereditarily - normal spaces, and gave a simple proof of this result

    摘要討論了-正規空間的逆極限性質，改進了文[ 7 ]中關于遺傳-正規性逆極限保持定理，並給出一個簡單證明。
  4. Are there similar characterizations for the countable paracompact ( mesocompact, metacompact ) space and hereditarily mesocompact space ? in this paper, on the basis of the aboves, we obtain some results about them. and the product properties of mesocompact spaces and hereditarily mesocompact spaces have been paid attention. but there is no good result about them. in this paper we obtain a result about the limit of the inverse system of a normal mesocompact space and a hereditarily normal and hereditarily mesocompact space

    那末，可數仿緊（中緊、亞緊）空間及遺傳中緊空間是否具有類似junnila的刻畫呢?本文圍繞這個問題在上述結果的基礎上證明了一些結果。另外，中緊空間和遺傳中緊空間的可乘性問題一直受到人們的關注，但還沒有好的結果，本文證明了一個關于正規中緊空間及遺傳正規且遺傳中緊空間的逆極限的結果。
  5. As analyzed, ( 1 ) the rapd technique is highly sensitive to investigating genetic diversity in t. lepturus and e. muticus. t. lepturus exhibits lower polymorphism and genetic diversity than e. muticus ; ( 2 ) according to the analysis of the partial mitochondrial 16s rrna gene sequences, a very low intraspecific variation and considerably high divergence among species were found, which reveals a dual nature of conservatism and variability in mitochondrial 16s rrna gene ; ( 3 ) five primers generate the species - speeific rapd sites and these sites can be served as the molecular markers for species identification and ( 4 ) it can be proved at dna variation level that t. lepturus and e. muticus are of two species respectively pertainiag to different genera, which supported the nelson taxonomic conclusion

    分析結果表明: （ 1 ） rapd技術研究黃海帶魚和小帶魚的遺傳多樣性具有較高的靈敏度和檢出率，帶魚的多態比例和遺傳多態度均較小帶魚的低; （ 2 ）線粒體165出兇a基因序列在分析兩物種遺傳變異時表現出保守和變異的雙重特性，種內變異極小而種間較大: （ 3 ） 5個隨機引物擴增出種特異的ra衛d帶，可作為種間分子鑒定標記; （ 4 ）研究證實帶魚和小帶魚是不同屬的兩個種，從而在分子水平上支持了nelson分類系統的觀點。
  6. At first, based on the simple genetic algorithm, an improved ga which adopts a combination of emigration policy and adaptive operator is presented. results of numerical optimization show that the improved ga is effective on preventing premature problem

    本文在基本遺傳演算法的基礎上首先研究了浮點編碼遺傳演算法在數值優化中的應用，通過引進「移民策略」和自適應運算元相結合的方法，改進了基本遺傳演算法在後期進化緩慢的問題，極大地減少了早熟性收斂的現象。
  7. It is applicable to various structural distribution networks. while resolving the " large area restoration ", the genetic algorithm execute three same and simple genetic operators : selection, crossing and mutating. it make a self - adaptable and probability overall searching under the leading of fitness value in the whole searching scale until acquiring the best result

    在求解網路故障后重構問題時，互動式模糊遺傳演算法通過循環執行相同的、極其簡單的選擇、雜交和變異三種遺傳操作，並在適應度函數值的引導下在搜索空間進行自適應概率性全局搜索，直至獲得全局最優解。
  8. Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements

    利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大
  9. The genetic correlations of six agronomic characters in some indica - japonica crosses were analyzed using mixed - linear model method. the results indicated that there existed correlations to a certain degree among the measured traits. the phenotypic correlations of plant height with filled grain or seed setting were significant. panicle length with total grains or filled grain, total grains with filled grain or seed setting, and filled grain with seed setting were the same. for panicle length with plant height or seed setting, total grains with filled, and for filled grain with seed setting, genetic correlations were also significant. further analysis, the result showed that genetic correlations between the measured traits were mainly due to domimant effects. in addition, additive correlations were significant for grain weight with panicle length or total grains or filled grain, and for total grains with filled grain

    用混合線性模型方法對秈粳亞種間雜交組合農藝性狀的相關性進行了遺傳研究，結果表明：被測性狀之間大都存在一定程度的相關.其中，株高與實粒數、結實率，穗長與總粒數、實粒數，總粒數與實粒數和結實率，以及實粒數與結實率之間具有顯著的表型相關，總粒數與實粒數，實粒數與結實率，以及穗長與株高和結實率之間具有顯著的遺傳相關.進一步的分析表明，性狀之間的遺傳相關大多歸因於顯性效應，而粒重與穗長、總粒數和實粒數之間，以及總粒數與實粒數之間還具有極顯著的加性相關
  10. An indirect self - adaptive fuzzy - neural network controller ( fnnc ) has been proposed with its parameters and the structure tuned simultaneously by ga in virtue of the powerful optimization property of ga. the structure of the controller is based on the radical basis function ( rbf ) neural network with gaussian membership functions. the performance of the proposed fnnc is compared with a conventional fuzzy - pid controller and the simulation results show that the fnnc presents encouraging advantages

    針對神經網路採用一維反向傳播訓練演算法速度較慢且易於陷入局部極小點的不足，設計了一種間接自校正模糊神經網路控制系統，利用遺傳演算法（ ca ）對隸屬度函數的結構和參數進行優化，模擬比較表明該控制比模糊pid控制具有更優的性能。
  11. The narrow heritability of the growth period and the period from sowing to budding were higher, separately reaching 66. 1 % and 49. 1 %, and interacted weakly, while the positions f the first fruiting shoots and the period from sowing to budding had the lowest narrow heritability, separately equal to 19. 8 % and 18. 8 %, and their interactions with the environments reached a significant level ; the heritability of the periods from budding to flowering and flowering to boll opening, and the stem heights, as well as their interactions with environments took the second place

    生育期、播種開花的狹義遺傳率均較高，分別為66 . 1 %和49 . 1 % ，且與環境互作效應較小，而果枝始節和播種現蕾的遺傳率最低，分別為19 . 8 %和18 . 8 % ，且與環境互作達到極顯著水平，現蕾開花、開花吐絮和株高這3個性狀的遺傳率及其與環境互作居中。
  12. A combined neural network and genetic algorithm with solving stability safety of homogeneous slope was proposed and the finite element method is applied to analysis the progressive failure process of the slope and the maximum equilibrium theory, requests out stability safety of homogeneous slope with the smooth arc radius of difference with the difference below the level coordinate of arc peak, utilizing the neural network algorithm to establish slidng the nonlinear mapping relationship between level coordinate of arc radious and arc peak, being adapted the neural network algorithm to look for along the minimal stability safety of homogeneous slope and corresponding arc radious and arc peak

    提出了求解邊坡穩定性安全系數的神經網路與遺傳演算法。該方法採用有限元分析和極限平衡理論，求出不同的滑弧半徑和不同的弧頂水平坐標下的邊坡穩定性安全系數，利用神經網路演算法建立滑弧半徑和弧頂水平坐標與安全系數之間的非線性映射關系，採用遺傳演算法搜索邊坡的最小穩定性安全系數及相應的滑弧半徑和滑弧中心坐標。
  13. Carryed out genetic algorithm to optimize this system to solve these two problems, and realized perfect smooth curve, instant reaction, stable function and robust function in transforming control

    並採取遺傳演算法對直流伺服線性定常系統進行優化處理，從而很好地解決了這兩個問題，實現了控制傳遞中有極好的平滑曲線，瞬時響應性能，穩態性能以及魯棒性能。
  14. Thirdly, the weight and threshold of bp neural network model was optimized by genetic algorithm ( ga ), which has stronger macroscopic search and global optimization property, based on bp network model of the preparation of superfine quartz powder. this model is named ga - bp, and improves the generalization capability and the parameters forecast precision of bp network model, and was proved to be correct by both theoretical analysis and experiment

    再次，本文以粉石英制備的bp網路模型為基礎，利用遺傳演算法（ ga ）較強的宏觀搜索能力和良好的全局優化性能，對bp網路模型的權值和閾值進行優化，極大地提高了bp網路模型的泛化性能和參數預測精度，將經過ga優化后的bp網路模型簡稱為ga - bp網路模型。
  15. And about a given property p which satisfies some conditions, we give a condition for the open sets in the tychnoff product of two spaces which have a open refinement having the property p. the last chapter obtains a result about the limit of the inverse system of a normal mesocompact space and a hereditar ily normal and hereditarily mesocompact space

    而且給出了，對滿足一定條件的某種性質p ，兩個空間的乘積中的每個開集族有p性質的開加細的一個充分條件。第四章詳細證明了關于正規中緊空間及遺傳正規且遺傳中緊空間的逆極限的一個結果。
  16. The objective of this study was whether the reconstituted embryo with the second polar body ( pb2 ) can develop. firstly, female mouse was superovulated with pmsg + hcg and keep in the same cage with male mouse, the pronuclear embryo was obtained at the different time after hcg injection with different motheds to investigate the existing time of pronuclear embryo. then pronuclear embryo was cultured with three different mediums to select the best to culture in vitro

    母鼠在注射hcg后與公鼠同籠交配，並在注射hcg后不同時間（從18h到26h ） 、不同方法（體內法和體外法）獲取胚胎，研究獲取原核胚的最佳時間；在此基礎上獲得具有第二極體原核胚，然後對原核胚進行顯微操作，去除雌原核並注入第二極體，探討第二極體內遺傳物質支持胚胎發育的潛力；同時利用dna特異性染料h33342對原核胚進行染色，顯示並比較原核和第二極體內的dna遺傳物質。
  17. It may suggest that h. patula had different genomes from leymus, psathyrostachys and the other three species of hystrix in this study. 6. comparison between the results from rapd and those from issr, it is concluded that : ( 1 ) 40 random primers were screened for rapd fragments, 20 primers produced polymorphic rapd products

    （ 2 ）結果分析的比較：通過兩種不同dna分于標記得出的伽tris 、 lcymus和psathmptachys三個屬間的jaccard遺傳相似系數及遺傳聚類圖具有極顯著的相關性，表明研究中所用的rapd和issr標記數量可以檢測到這些遺傳變異。
  18. Application of sumt and ga to solving constrained nonlinear programming problem

    序列無約束極小化技術和遺傳演算法在非線性規劃中的應用
  19. On the application of sumt and ga to solving constrained nonlinear programming problem

    序列無約束極小化技術和遺傳演算法在非線性規劃中的應用
  20. Accordring to basic concept and assumes essentially on the basic of sweden method of slices, be living below the maximum equilibrium state, the function expression about stability safety homogeneous slop is deduced, and the slope surface is consist of two lines and an arc, afterwards according to analysis theory of minimal value ruling on the basic of the maximum, genetic algorithm is applied to slove the dangerousest slide situation and radius and corresponding safely factor

    根據瑞典圓弧法的基本概念和基本假定，在極限平衡狀態下，推導了兩直線段均質斜坡穩定性安全系數函數表達式，然後根據極限分析理論的極小值原理，利用遺傳演算法，求出了邊坡穩定性安全系數極小值，並得到最危險滑動面的滑弧半徑和滑弧中心坐標。
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