natural biological method 中文意思是什麼

natural biological method 解釋
自然生物法
  • natural : adj 1 自然界的;關于自然界的。2 天然的;未開墾的;野生的。3 固有的 生來的 天賦的(opp acquired)...
  • biological : adj. 生物學(上)的。 a biological test 生物學檢驗。n. 【藥學】生物製品,生物制劑。adv. -ly 生物學地,生物學上。
  • method : n 1 方法,方式;順序。2 (思想、言談上的)條理,規律,秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Genetic algorithm is a global optimization search method, which is based on biological evolutionary mechanisms such as natural selection, heredity and mutation

    摘要遺傳演算法是一種基於自然選擇和遺傳變異等生物進化機制的全局優化搜索演算法。
  2. Major difference of hn proteins lies in no. 18 - no. 75 amino acid residues on n - terminal which includes three active sites of hn protein. the influence on biological action, caused by the difference of hn protein, is needed to study further. hn gene has only four glycosylation sites, which is 1 or 2 less on amount than that of other strains. so, this difference can be take on as a natural mark of ndv b95 strain furthermore, the fragment encoding hn gene was excised from the positive clone pgem - hn with sail and saci enzyme, and purified by agrose gel fraction method. then the fragment was subcloned into the pet - 28c expressing vector digested by sail and saci restriction enzyme

    作者將正確的重組克隆質粒pgem - hn用saii 、 saci雙酶切,電泳回收目的片段,將其亞克隆到經saii 、 saci雙酶切處理的pet - 28c中,轉化大腸桿菌tgi感受態細胞,得到的轉化子經pcr鑒定和酶切分析,篩選出符合閱讀框的重組子,構建成重組表達質粒pet - hn ,並在大腸桿菌bl _ ( 21 ) ( de _ 3 )宿主菌中成功地表達了含目的蛋白的融合蛋白,融合蛋白的分子量約66kd ,加入iptg誘導8h后,蛋白表達幾乎達到最高水平。
  3. An optimizing method based on biological evolution - genetic algorithm is proposed to the problem of the construction process planning analysis. adapting the successful experience of path optimization problem, improved genetic operators are adopted : the sequence of numbers, which is arranged by the removal order of members, is assumed to represent a chromosome by natural code ; transforming baseline information of this problem into immune operators ; combining rank - based model with elitist model ; designing special crossover and mutation operators. the mathematical model for computer and special programs are provided in this paper

    借鑒遺傳演算法在求解路徑優化問題上的成功經驗,應用了改進的遺傳運算元:採用自然數對結構去除構件進行編碼,將所求問題的基本信息轉換成免疫運算元,採用穩態最優保存策略和排序選擇方法相結合進行選擇,採用適用於本問題研究的特殊的交叉運算元和變異運算元,從而來討論在桁架結構施工路徑優化問題中使用遺傳演算法的可能性。
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