mutation rate 中文意思是什麼

mutation rate 解釋
（突變率）：某個突變發生的速率，通常用每個基因每代出現的次數表示。

  • mutation : n. 1. 變化,變異,更換；【生物學】突變；突變種；【語言學】母音變化；【音樂】（提琴的）變換把位；變聲；【法律】讓受。2. （人世的）浮沉,盛衰。
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  1. This dissertation uses genetic algorithm to choose optimum parameters for the widely used pid controllers. in the optimization calculation process, mutation rate, cross rate and parameter range are adaptively changed to accelerate optimization process

    本文用遺傳演算法優化工程中廣泛使用的pid控制器的參數，採用變參數區間、變交叉變異概率等方法提高計算速度，並對適應值函數進行了改進。
  2. According to the distinguished result, the algorithm adaptively sets the mutation rate

    根據辨識結果，自適應地設置變異概率。
  3. Biologically functional sequences, as the theory goes, tend to undergo mutation at a slower rate than nonfunctional sequence, since mutations in these sequences are likely to be selected against

    生物功能排序，如理論進行的那樣，往往是比非功能排序以較低速度經歷突變，因為在這些排序里突變很可能是選擇保護。
  4. Simple genetic algorithm gets local minimization too easily and converges slowly. to solve these problems, adaptive crossover rate that has reverse hyperbolic rel ation with the numbers of iteration is designed, and adaptive mutation rate that has reverse proportion to the distances of parents and reverse exponential relat ion to the numbers of iteration is put forward. the practical simulation results show that the adaptive ga has greater convergence speed and larger probability o f getting the best solution

    簡單遺傳演算法存在著收斂速度慢、易陷入局部極小等缺陷.針對這些缺陷，本文設計出隨相對遺傳代數呈雙曲線下降的自適應交換率，並提出與父串間的相對歐氏距離成反比、隨相對遺傳代數指數下降的自適應變異率.實例驗證表明，具有自適應交換率和變異率的遺傳演算法在收斂速度和獲得全局最優解的概率兩個方面都有很大的提高
  5. Fourth, the theoretical model of optimum technological growth rate under discrete change is erected. technology is a unique production factor because technological growth experiences a mutation when technological increase accumulates to a certain extent. under this condition, the point - mutation model in tom ’ s mutation theory is applied to explain the phenomenon of technological

    將技術作為不同於勞動和資本的特殊生產要素進行考察，即當技術量的積累達到一定程度時，技術增長會產生突變，在此條件下，運用湯姆突變理論中的尖點突變模型，解釋了技術突變現象，討論了勞動和資本的不同組合變化下，在臨界點附近技術突然躍升或下降的突變性質；構建了技術突變完成後的技術增長率優化理論模型。
  6. Dr jablonski ' s study does not, for instance, help to answer whether the tropics are a wellspring of species because a hotter climate brings a higher mutation rate, or because more intense interactions between species select for more rapid evolutionary change

    例如，捷布朗斯基博士的研究未能解答究竟是因為氣候更加溫和導致更高的突變率，還是因為種間相互作用更強加速了進化上的改變，從而使得熱帶地區成為物種的發源地。
  7. 3 ) the results of studying on the chromosomal mutation and mitosis of the wheat irradiated by uv - b indicated that the rate of mitosis was inhabited by uv - b radiation ( 10. 08 kj ? m " 2 ? d " 1 ) in wheat cells, and some types of chromosome aberration were induced

    （ 3 ）對染色體及細胞分裂的研究結果表明，增強uv - b輻射能抑制小麥細胞的有絲分裂率，產生落後染色體、染色體橋、游離染色體、核變形等畸變。
  8. During the study on the mutation effects of ion beam on arabidopsis seeds, it was found that the sensitivity degree of different ecotype seeds was different. plant survival rate could be affected by different ions " energy and ions " type

    在對離子注入擬南芥種子引起的誘變效應的研究過程中發現，不同生態型擬南芥種子對注入劑量的敏感度不同，離子能量、離子類型對種子成苗率也有影響。
  9. The typical symmetric tsp ( traveling salesman problem ) solving process was used to test various recognition methods, and then the test results were used to improve the traditional ga, including improving the recognition rate of building blocks and mutation and crossover operators based on building block

    利用經典的對稱旅行商問題求解過程來測試各種識別方法，再利用積木塊的識別結果改進原有遺傳演算法，包括改進積木塊的識別率以及基於積木塊的交叉、變異運算元。
  10. The analysis revealed that the sars - coronavirus was mutating continuously throughout the epidemic. the estimated mutation rate of the virus, however, is one - third that of the virus responsible for the acquired immunodeficiency syndrome ( aids )

    分析結果顯示sars冠狀病毒雖然演變迅速，但sars冠狀病毒基因組的中性突變率只是愛滋病毒基因組的突變率的三分之一。
  11. The mutation rate of the virus was most rapid during the early part of the epidemic between the time of the first emergence of sars to the first major outbreak in guangdong province

    不斷在人體內變異以適應人體病毒在sars疫癥初期（即出現第一病例至廣東省大爆發）變異速度最快。
  12. 1 ) a conclusion is made that there is an optimal combination of crossover rate and mutation rate after study on the relationship of that two rates. thus the blindness of selection of the two rates is reduced in a way

    1 ）對交叉率與變異率的關系進行研究，得出兩者存在最優組合關系的結論，在一定程度上減少交叉率與變異率選取的盲目性。
  13. Now next step we have to think about the ten years treatment, ten years mutation rate is 10 percent, then 90 % percent can use a drug for 10 years, then you might change the so - called natural cause of diseases

    但是我們要考慮的是10年長期的服藥，如果10年的變異率是10 % ，仍然在這10年裡面，我們90 %的藥物療效是用來抑制病毒復制，而且效果好，可以延緩俗稱的自然肝病病程進展。
  14. The highest rate of mutation is seen in the part of the virus genome coding for the spike protein, the component of the virus which enables human cell entry. these data suggest that during the early part of the epidemic, the sars - coronavirus was under significant pressure to change in order to become an efficient human virus

    這證明來自動物的病毒在感染人類的初期，病毒受到強大的選擇壓力，而須迅速變異，使病毒得以在人類身上適應和生存，令人類受到感染和傳播病毒。
  15. The rate of polygenic and recessively inherited diseases tends to increase with inbreeding, because the chance that the two animals carry the same mutation is greater when the dogs are related

    同系繁殖產生遺傳病的比例比較大，因為關系較近的兩只犬攜帶相同變異基因的可能性較大。
  16. Have tumor familial history there is certain part to cause mutation easily in gene, so, the machine rate of offspring happening is higher than average person also

    有腫瘤家族史的基因中有某些部分輕易引起突變，所以，後代發生的機率也比一般人高
  17. Genetic algorithm is adopted to solve this problem. the method using several chromosomes express a scheme is presented. crossover rate and mutation rate are automatically adjusted by fuzzy control to quicken search procedure and avoid immature convergence

    本文引入了遺傳演算法來解決這一問題，提出了採用多條染色體表示一組方案的方法，並對遺傳操作過程中的交叉率和變異率進行了模糊控制，有效的加快了搜索速度，避免了不成熟收斂。
  18. In this paper, a method of emergence and survival of lacked allele is proposed, that is, selecting the characters missed in current population as lack allele set by comparing the character set with genes of the population, implementing simulated mutation to the individuals selected from the population by mutation rate, choosing the gene just mutated and its locus of the best individual from mutated individuals by fitness, and using it to mutate the genes in the same locus of original individuals

    提出一種缺失基因復現和存活的變異方法，即根據字符集中的字元在種群中的缺失作為預選變異基因集，然後對待變異個體集進行預變異；選擇高適應度個體的對應變異基因和基因位，使其在原待變異個體集中擴散。
  19. So the choices on the drugs might be very much depending on the mutation or resistance rate

    所以對于藥物的選擇會取決于藥物本身引起的變異率和耐藥率。
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