遺傳不穩定性 的英文怎麼說

中文拼音 [yízhuànbùwěndìngxìng]
遺傳不穩定性 英文
genetic instability
  • 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）...
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 穩 : 形容詞1 （穩定; 穩當） steady; stable; firm 2 （穩重） steady; staid; sedate 3 （穩妥） sure; rel...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 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
  • 穩定性 : antiwhip
  • 穩定 : 1 （使穩定） stabilize; steady 2 （穩固安定） stable; steady 3 （物質的性能不易改變的作用） stabi...
  1. A novel dynamic evolutionary clustering algorithm ( deca ) is proposed in this paper to overcome the shortcomings of fuzzy modeling method based on general clustering algorithms that fuzzy rule number should be determined beforehand. deca searches for the optimal cluster number by using the improved genetic techniques to optimize string lengths of chromosomes ; at the same time, the convergence of clustering center parameters is expedited with the help of fuzzy c - means ( fcm ) algorithm. moreover, by introducing memory function and vaccine inoculation mechanism of immune system, at the same time, deca can converge to the optimal solution rapidly and stably. the proper fuzzy rule number and exact premise parameters are obtained simultaneously when using this efficient deca to identify fuzzy models. the effectiveness of the proposed fuzzy modeling method based on deca is demonstrated by simulation examples, and the accurate non - linear fuzzy models can be obtained when the method is applied to the thermal processes

    針對模糊聚類演算法不適應復雜環境的問題，提出了一種新的動態進化聚類演算法，克服了傳統模糊聚類建模演算法須事先確定規則數的缺陷.通過改進的遺傳策略來優化染色體長度，實現對聚類個數進行全局尋優;利用fcm演算法加快聚類中心參數的收斂;並引入免疫系統的記憶功能和疫苗接種機理，使演算法能快速穩定地收斂到最優解.利用這種高效的動態聚類演算法辨識模糊模型，可同時得到合適的模糊規則數和準確的前提參數，將其應用於控制過程可獲得高精度的非線性模糊模型
  2. In this text, we first do some research on the genetic algorithm about clustering, discuss about the way of coding and the construction of fitness function, analyze the influence that different genetic manipulation do to the effect of cluster algorithm. then analyze and research on the way that select the initial value in the k - means algorithm, we propose a mix clustering algorithm to improve the k - means algorithm by using genetic algorithm. first we use k - learning genetic algorithm to identify the number of the clusters, then use the clustering result of the genetic clustering algorithm as the initial cluster center of k - means clustering. these two steps are finished based on small database which equably sampling from the whole database, now we have known the number of the clusters and initial cluster center, finally we use k - means algorithm to finish the clustering on the whole database. because genetic algorithm search for the best solution by simulating the process of evolution, the most distinct trait of the algorithm is connotative parallelism and the ability to take advantage of the global information, so the algorithm take on strong steadiness, avoid getting into the local

    本文首先對聚類分析的遺傳演算法進行了研究，討論了聚類問題的編碼方式和適應度函數的構造方案與計算方法，分析了不同遺傳操作對聚類演算法的性能和聚類效果的影響意義。然後對k - means演算法中初值的選取方法進行了分析和研究，提出了一種基於遺傳演算法的k - means聚類改進（混合聚類演算法） ，在基於均勻采樣的小樣本集上用k值學習遺傳演算法確定聚類數k ，用遺傳聚類演算法的聚類結果作為k - means聚類的初始聚類中心，最後在已知初始聚類數和初始聚類中心的情況下用k - means演算法對完整數據集進行聚類。由於遺傳演算法是一種通過模擬自然進化過程搜索最優解的方法，其顯著特點是隱含并行性和對全局信息的有效利用的能力，所以新的改進演算法具有較強的穩健性，可避免陷入局部最優，大大提高聚類效果。
  3. 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。
  4. Along with the development of cellular genetics and tumor etiology, a lot of attention has been paid to the relation between chromosome instability and tumor formation

    摘要隨著細胞遺傳學與腫瘤病因學研究的不斷深入，染色體不穩定性與腫瘤形成的關系越來越受到人們的重視。
  5. This research use high sensitive, special in situ pcr technology to determine the material which is treated by the paraffin wax and formalin fixation of different time, by detecting the genotype of mn blood group of the organizes slices. at the same time, we study the research of main influence factors, such as protease digestion, etc. we hope to set up a kind of steady, practical methods to detect the genotype of the material treated by paraffin wax and formlin, offer a kind of new detecting means for the forensic appraises and iditificition with individual material evidence

    本研究應用靈敏度高、特異性好的原位pcr技術，測定福爾馬林固定不同時間的石蠟切片組織mn血型的基因型，並對蛋白酶消化時間等主要影響因素進行了初步的研究，以建立一種穩定、實用的檢測石蠟組織切片dna遺傳標記的方法，為法醫物證鑒定和個人識別提供一種新的檢測手段。
  6. Doe to its exceeding sterility, the mutation was maintained by heterozygotes, and it was also inherited stably after five generations of self - pollination

    由於其高度不育，突變性狀採用雜合體保存，經5代連續自交，均表現穩定遺傳特性。
  7. Test results show that the igahas better adaptability and stability than the sga, no matter which type of optimization problem they handle ( continuous or discrete, linear or nonlinear, and constrained or free )

    實例表明，改進遺傳演算法（ iga ）不論是對于連續或離散的、線性或非線性的、有約束或無約束的等優化問題都表現出較強的適應性和穩定性。
  8. A bt - e. coli shuttle vector pht315 was deleted its replication region of bt, then constructed a novel vector named pht315 - 1 which composed a multiple cloning site, erythromycin and ampicillin - resistance marker and could only replicated in e. coli. used pht315 - 1, a 5273 bps dna fragment carrying a novel bt plasmid replicon was isolated and registered in genbank as ay278324. sequence analysis showed that there were at least three orf ( open reading frame ) in the cloned dna encoding 501, 333, 183aas. orfl had 98 % identities with replicating related protein ori43 of bt strain hd263. the others were no homology to any published bt replicating related protein. after continuous cultured for 70h at 30 c without antibiotic selecting press. the stability of plasmid carrying cloned replicon in bt acrystalliferous mutant strain hd73 cry was more than 98 %. and growth curve also showed that the novel replicon was stable and could replicate normally

    進一步序列分析表明該復制區至少有3個較大的orf ，分別編碼501 ， 333 ， 183個氨基酸。其中orf1蛋白序列與hd263復制蛋白ori43的同源性為98 ，而另外兩個orf和genbank己公布的bt復制相關蛋白無同源性。 30連續培養72h ，復制區質粒在bt無晶體突變株hd73cry ~ -中穩定性達98以上， 30h生長曲線也表明該復制區能夠在bt中穩定復制和遺傳，對受體菌株無明顯不良影響。
  9. Four types of colony, powdery gray, gray with white blot, white and bald were isolated from streptomyces avermitilis among them only the powdery gray one produced the highest avermectin. the gray with white blot one only produced 70 % - 80 % less than the powdery gray. and the others produced none

    白色菌株和光禿型菌株經傳代培養比較穩定，灰色有白點的菌落在傳代過程中不斷分化出灰色、白色、光禿型菌落，直接造成遺傳的不穩定性，使生產效價不穩定，為生產的大害。
  10. Taking erectophile type continuous vegetation as a example, authors had done many monte carlo simulations, and established empirical analytic expressions of radiances with component temperature, soil emissivity and leaf area index. empirical analytic expressions were used to construct objective function and genetic algorithm was employed to synchronously retrieve 5 parameters, such as component temperature, soil emissivity and lai, from thermal infrared 2 channels and 2 angles data. many experiments of genetic algorithm inversion from simulated data were conducted, results show that it is very robust to retrieve component temperature using genetic algorithm ; genetic algorithm can cope with uncertainty inversion problem pretty well if full advantage of priori knowledge was taken. comparison between inversion results and ground - truth data has been done. this paper offers a new example to retrieve component temperature from multi - channel, multi - angle thermal infrared data based on the model of directionality of thermal radiance

    在熱輻射方向性規律的基礎上，以喜直型連續植被為例，進行了大量的monte carlo模擬，建立了輻射亮度和組分溫度植被葉面積指數及土壤比輻射率之間的經驗函數關系。採用遺傳演算法，從熱紅外2個波段2個角度數據中，同時反演混合像元組分溫度土壤比輻射率和葉面積指數等5個參數。通過對模擬的觀測數據進行大量的遺傳演算法反演試驗，結果表明，遺傳演算法反演組分溫度非常穩健，在寬松的先驗知識條件下，遺傳演算法可以解決不確定性反演問題。
  11. Many streptomyces species exhibit a very high degree of genetic instability which is usually manifested as genomic rearrangement such as large deletion, and high - level dna amplification of those sequences flanking the deletion

    許多鏈黴菌表現出高度的遺傳不穩定性，通常為大片段缺失或基因組重排，以及缺失區域兩側序列的高水平dna擴增。
  12. A safety reliability evaluation method for embankment slope stability under random storm wave actions and erosion - damage effects is proposed, the genetic algorithm has been used as the modern optimization technique applied to the minimization of the reliability index and the safety factor of embankment slope stability

    文中針對隨機風浪作用下侵蝕-損傷的堤壩邊坡穩定性提出一種安全可靠性評價方法，應用遺傳演算法尋找最危險滑動面對應的安全系數和最小可靠指標，並與傳統優化演算法進行比較，遺傳演算法尋優結果穩定不依賴于初值，明顯優于傳統優化演算法。
  13. Pol p is normally regarded as the base excision repair ( ber ) polymerase. its role in ber is un - replaceable and thereby is important in mammalian genomic stability

    Pci6在單堿基切除修復（ baseexcisionfpair ， ber ）起到不可替代的重要作用，因此認為poip是參與維持細胞遺傳穩定性的細胞內因子。
  14. This paper reviewed the history of slope stability analysis, compared all the methods used for slope stability analysis, and analyzed the shortcomings of the methods used for searching the failure surface, for reasons of a lot of uncertainties, for example random uncertainty and fuzzy uncertainty, are existed in the slope engineering

    由於邊坡工程中存在著大量隨機性、模糊性等不確定因素，傳統的一些分析、評價方法難以滿足日趨復雜的工程分析與設計要求。本文將遺傳演算法用於邊坡工程的穩定性分析與設計中，根據遺傳演算法（ geneticalgorithms ）的概念，討論了遺傳演算法的基本原理和方法。
  15. Besides, it is not fit with the precise adjustment and is difficult to conform the place. a new adaptive genetic algorithm with bp algorithm to optimize weight is backed up. the algorithm which combines the merits of the global convergence of genetic algorithm with fast local researching of bp algorithm not only intensifies the gradual convergence and evolution ability but also advance the speed of convergence, precision of training and generalization

    針對傳統遺傳演算法的搜索過程帶有一定的盲目性，其收斂特性不穩定且收斂速度緩慢，特別是在系統規模較大時，優化效果的明顯改善往往需要相當長的時間，而且不適合候選解的精調，難以確定解的確切位置，提出一種新型自適應性遺傳演算法，並在此基礎上，用bp演算法優化前向神經網路權值，綜合了兩種演算法的優點，即遺傳演算法的全局收斂性和bp演算法局部搜索的快速性，強化了遺傳演算法的漸進收斂和進化能力，全面改善了演算法的收斂性，提高了收斂速度及訓練精度，也擴展了泛化能力。
  16. Transgenes should be with single copy and without accessory sequence, and with consistence to express and stable genetic in various transgenic plants in a new gene transformation program

    新的轉化程序要求把基因導入農藝性狀優良的品種中，呈單拷貝、不帶有輔助序列，並在不同的轉化體中表達一致，穩定遺傳。
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