遺傳退化 的英文怎麼說

中文拼音 [yízhuàntuìhuà]
遺傳退化 英文
genetic devolution
  • 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）...
  • 退 : 動詞1 （向後移動） retreat; draw back; move back 2 （使向後移動） cause to move back; remove; wit...
  • 遺傳 : [生物學] heredity; hereditary; inheritance; inherit
  • 退化 : become vestigial; degenerate; deteriorate; retrograde; devolution; retrogradation; retrogression;...
  1. The tested isozymes included esterase ( est ) 、 superoxide dismutase ( sod ) 、 malate. dehydrogenase ( mdh ) 、 malic enzyme ( me ) 、 glutamate dehydrogenase ( gdh ) 、 peroxidase ( per ) and alcohol dehydrogenase ( adh ). there were obvious differences between the normal strain and its degenerative strain in est 、 mdh 、 me 、 sod. the zymotype were the same in the other isozymes. the results were not only used to test the degenerative strain at young stage, but also as the theoretical base to study the genetic mechanism of the degenerative strain

    而其餘四種酶在正常菌株和退化菌株中酶譜一致。本研究不僅可以作為菌株退化早期鑒別的手段之一，而且為進一步研究菌種退化遺傳機理提供了蛋白質水平上的一些理論依據。
  2. Hip dysplasia is a terrible genetic disease because of the various degrees of arthritis ( also called degenerative joint disease, arthrosis, osteoarthrosis ) it can eventually produce, leading to pain and debilitation

    髖關節發育不全是一種嚴重的遺傳疾病，伴隨著于不同程度的關節炎（也可以被稱為退化性關節疾病） ，最終可能會引起犬只的疼痛與衰弱。
  3. E. mollis had higher genetic diversity among populations, and the reason may be as follows : ( 1 ) those populations are generally large and are not subject to significant loss of variation through small - population effects such as random genetic drift and inbreeding coupled with selection

    相對於26種長壽木本特有種和61種狹窄的地理分佈種來說，翅果油樹種群也具有高的遺傳變異水平。這表明翅果油樹種群不存在遺傳上的退化現象。
  4. The objective of the optimal model is to keep the flood process mode similar and subject to restrictions of the actual peak flow discharge and flood volume in different period of time, the ga and prsaa that have global optimal capabilities are used to solve the model in this paper

    在滿足洪峰流量約束和分時段洪量約束條件下，本文建立了以洪水過程模式盡量相似為目標的洪水過程放大優化模型，並採用具有全局搜索能力的遺傳演算法和并行組合模擬退火演算法求解該模型。
  5. The tong - term tune bests of pinus yunnanensis management lead to bio - diversity decrease, diseases and insect pests damage, genetic degradation, and productivity decline

    摘要長期以來，雲南松的純林經營使得生物多樣性降低、林分穩定性變差、遺傳品質退化、林分生產力下降，從而導致生態系統功能衰退。
  6. Abstract : reasonably combining the parallel structure of genetic algorithm with the controllable jumping property of simulated annealing, a class of effective and general hybrid optimization strategy is proposed and applied t o estimate the parameters of various kinds of models

    文摘:合理融合遺傳演算法的并行搜索結構和模擬退火的可控性概率突跳特性，構造了一類高效的混合優化策略，並用於多種類型模型的參數估計。
  7. In the artificial - planting, the strain of cordyceps militaris is easy to degenerate. at present, the study about the fungus in cordyceps genus are just in the identification of fungi 、 the nutrition analysis 、 the using in medicine and artificial - planting. although, it could reduce the lost by the usual breeding way, we could not solve the problem at basic. about the degeneration of strain, people mostly use the gender - cycling 、 the fusing - cytoplasmic technology and the genetic - engineering method to reform the strain. most of people use moleculor method in the study of relationships among the species and between the species

    用常規選育方法雖然能減少一定的損失，但不能從根本上解決菌種退化這一長期困擾企業生產的問題。針對菌種退化問題，主要是利用有性循環、原生質體融合和遺傳工程等途徑進行菌株改良，應用分子生物學手段只是研究種內、種間的系統關系等，而關于菌種退化遺傳機理的研究尚未見報道。菌種退化是菌類栽培過程中普遍存在的，也是生產當中迫切希望得到解決的問題。
  8. The study of different deteriorated grasslands showed, although occurring genetic differentiation and reduced genetic diversity, biodiversity in deteriorated population can still maintain a high level. additionally, it had gene exchanges with normal populations. the deteriorated grassland can restore its vegetation as normal if rational management was adopted

    不同退化系列，克氏針茅種群雖發生了遺傳分化，遺傳多樣性略有降低但仍維持較高的水平，且與正常草地間有基因流，只要採取合理的草地利用措施，減輕放牧壓力，退化草地即可恢復，若採取人工補播正常種群種子，將會加快退化種群的恢復進程。
  9. Secondly, the intelligent optimization algorithms are used as search strategy. to overcome the genetic algorithm ( ga ) ’ s premature convergence, the metropolis scheme was introduced into ga

    針對遺傳演算法的「過早收斂」 ，我們採用混合優化演算法，將模擬退火演算法的metropolis接受準則引入到遺傳演算法中。
  10. In order to solve the premature problem in strength optimization design of laminate, to combine the part - degenerate operator and adaptive operator is a good idea. poisson ' s ratio is a parameter which measures the volume - changed of objects

    同時針對強度優化的具體問題構造合適的適應度函數，並且通過採用「局部退化運算元」和「自適應運算元」相結合的方法較好地解決了基本遺傳演算法中常見的早熟性收斂問題。
  11. First, we trained neural network by using different methods to deal with different data, to elevate the ability of detecting small intrusion and prevent neural network degeneration during training ; then, the improved genetic algorithm was used to optimize neural network ensemble weight

    首先通過有區別地對待不同的訓練數據訓練神經網路，提高對小類別入侵的檢測能力並防止網路訓練中的退化現象；然後利用一種新的改進遺傳演算法優化集成網路的權，提高系統整體性能。
  12. The characteristics of sa and ga are analyzed intensively, which involves search mode, the mathematical analysis and experimental aspects of the underlying processes in the algorithms, convergence discussion and detailed operation procedures. then the modified versions are presented. these new algorithms are mossa ( multiple operation structure sa ), nga ( normalized ga ) and hga ( hybrid ga )

    在以上分析研究基礎上，結合水聲信號處理的特殊性，在第四章提出了多操作結構模擬退火演算法（ mossa ） ；第六章提出了改進的ga演算法，如歸一化遺傳演算法（ nga ） ，變結構遺傳演算法和混合式優化演算法等，並對其進行了基本性能分析評估。
  13. Compared with the csa ( classical sa ), fsa ( fast sa ) and lga, the new versions of the algorithms seem to gain better performance. there are several application examples investigated and presented in the dissertation. de - convolution techniques based on mossa is shown in chapter 7, underwater acoustic channel estimation and data recovery in chapter 8, and the inversion problems in underwater sound field in chapter 9. chapter 10 summarizes the investigation and gives the major conclusions

    本研究取得的主要成果有： 1 ）多操作結構模擬退火演算法（ mossa ） ； 2 ）歸一化遺傳演算法（ nga ） ； 3 ）變結構遺傳演算法和混合式優化演算法； 4 ） mossa反卷積處理技術和通道估計方法； 5 ）海底特性參數聲學反演的ga方法等。
  14. Based on the nature of designing movements of clocks and watches, this paper uses expert systems to make initial design of the overall packing, and then adopts genetic algorithm and simulated annealing algorithm to optimize the design

    根據鐘手錶機芯設計的特點，本文採用專家系統進行進行總體布局初步設計，然後利用遺傳演算法和模擬退火法對設計結果進行優化設計。專家系統由自行研製的設計型專家系統工具gdest來構造。
  15. Aiming at the limitation of basic evolution strategies, a kind of growth mechanism - based evolution strategies and its realization are introduced. chapter three presents the evolution strategies - based optimizing of seaport container logistics system, firstly the structure of chromosome is introduced, then a kind of hybrid mutation operation is used, the detail process of the optimizing method is also described, finally the traveling sequence optimization of the containers is introduced as an example to testify the feasibility of the new optimizing method

    在以往的港口物流系統規劃研究中，遺傳演算法和模擬退火法是經常採用的數學方法，第三章首次研究了基於生物進化策略的港口集裝箱物流系統優化方法，提出了一種基於混合變異的自然數編碼進化策略演算法和染色體的構造模式，並以集裝箱運送順序優化問題為例，實現了基於生物進化策略的港口集裝箱物流子系統的優化。
  16. In designing a multi - structuring elements filter, combination rules and structuring elements of the morphological transform are determined automatically, and one kind of neural networks is taken for the filter, in optimzing structural parameters of the filter, three computation methods are designed respectively, by adopting some priori information in application fields to guide optimal structural parameter learning procedure, which are the bp adaptive learning algorithm, the heuristic genetic learning algorithm and the inductive simulated annealing learning algorithm

    在多結構基元濾波器設計中，通過學習人-機交互選定的目標樣本，自動確定形態變換的組合規則及其結構元素，最終以神經網路形式構成濾波器。在結構參數的優化學習中，利用應用領域的先驗知識，分別設計了自適應bp學習、啟發式遺傳學習和引導式模擬退火學習等三種最優化計算方法。
  17. Based on these results, the strategies for conservation e. mollis population to prevent the isolation and fragment of the populations and maintain the high genetic variation among the populations. moreover, it should be avoid the decline of gene flow was resulted from the isolation of the populations so that resulted in the differentiation and genetic decline of the population. finally, it should be adopt some method to spread continuous distribution and extend genetic diversity of the population

    針對翅果油樹的遺傳結構和遺傳多樣性的研究結果，提出了保護翅果油樹種群的策略：維持現有翅果油樹種群高的種內遺傳變異水平，遏制由於人為原因而導致的翅果油樹種群隔離或片段化的趨勢，防止由於種群隔離造成基因流降低，從而引起種群分化和種群的遺傳衰退，並採取適當措施擴大種群的連續性和種群內的遺傳多樣性水平。
  18. According to the rules and considerations which are based and taken into account in the practical work, this paper proposes a new model for distribution maintenance scheduling which intends to find the most economical maintenance schedule without violating any restrictions and also the paper makes a deep research of ga, sa and ts. by constructing two effective instructive rules which derive from the feature of distribution maintenance schedule and introducing ts into mutation operation of ga in the earlier generations, the proposed method improves the convergence of optimization and shortens the calculation time. the proposed model and method are applied to a practical system, and numerical results verify ' the correctness and validity of them

    本文結合實際電力調度計劃工作中檢修計劃的制定原則和所要考慮的各種因素，抽象出適合配電網檢修計劃優化的數學模型：對遺傳演算法、模擬退火演算法以及禁忌搜索演算法等多種演算法進行了研究和分析比較，針對遺傳演算法的不足提出了通過對實際問題的分析抽象出一定規則指導演算法在解空間進行搜索和兩階段變異運算元兩項改進措施，並應用於配電網檢修計劃優化，編制了相應的應用軟體；應用該軟體對我國南方某地區供電局某月的檢修計劃進行優化的結果表明，本文所提出的模型和改進的優化方法是正確和有效的。
  19. Abstract : simulated annealing and multigroup parallel evolution are two helpful methods which can improve the performance of genetic algorithm. these two ideas are well combined in this paper, and a new algorithm is derived, that is the multigroup parallel genetic algorithm based on simulated annealing method. simulation results show that this method not only quickens the computation, but also improves the convergence efficiency, thus produces more satisfactory results

    文摘:模擬退火和多種群并行遺傳進化是兩種較好的改進遺傳演算法性能的方法.將這兩種思想有機地結合起來，提出了一種基於模擬退火機制的多種群并行遺傳演算法.模擬結果表明，該演算法不僅能增強演算法的全局收斂性，還能加快遺傳進化速度，得到滿意的全局最優值
  20. First, based on comprehension analysis of the present study status on optimizing method to displacement back analysis in underground engineering home and abroad, intelligent optimizing method, which fits the features of underground engineering, has been developed by introducing annealing algorithm and genetic algorithm and improving them. second, according to practical features of nonlinear displacement for underground engineering, the mechanical model on back analysis to initial ground stress and mechanical parameters of surrounding rock mass in underground engineering is established, which is based on the measuring results of displacement of convergence in underground holes. while, by introducing finite element method and combining improved annealing algorithm and improved genetic - annealing algorithm, the theory and method of elastic - plastic displacement back analysis to surrounding rock in underground engineering has been founded

    首先，本文在綜合分析國內外地下工程優化位移反分析方法研究現狀的基礎上，引進模擬退火與遺傳演算法，並對其進行改進，建立了適合於地下工程問題特點的智能優化演算法;其次，根據地下工程非線性特點，基於地下工程洞周收斂位移量測結果，建立了用於地下工程初始地應力與圍巖力學參數反演分析的力學模型，並引進有限元分析手段，結合改進模擬退火演算法與改進遺傳-模擬退火演算法，分別建立了基於這兩種智能優化演算法的地下工程圍巖彈塑性位移反分析理論與方法，並開發了相應的分析計算程序，為地下工程圍巖穩定性與開挖順序優化分析奠定了基礎;然後，在上述基礎上，根據地下工程開挖施工順序優化設計的特點，建立了基於圍巖塑性區面積的地下工程開挖施工順序優化分析模型，基於改進模擬退火演算法與改進遺傳-模擬退火演算法建立了地下工程開挖施工順序優化分析方法，並開發了相應的分析計算程序;最後，將上述分析計算程序用於工程實例分析，探討了其應用方法，證明了該文研究成果的合理性和可靠性。
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