genetic element 中文意思是什麼
genetic element
解釋
遺傳成分-
Episome is an additional genetic element that can exist either as an autonomous entity or be inserted into the continuity of the chromosome of a host cell.
附加體是能插入寄生細胞連續的染色體之中，也能以自主實體而存在的一種附加遺傳因素。 -
Secondly, the model involving helicopter, riggings and moorages are built up based on the fea ( finite element analysis ). thirdly, ga ( genetic algorithm ) is used to realize the optimization of single ship - based helicopter
3 .採用遺傳演算法對單架艦載直升機（簡稱單機）在甲板上的系留方案進行了優化，提煉出了優化的目標和約束條件。 -
Another topic of this article is to try to find a proper overlay design method. by using elastic layer system ( els ), finite element method ( fem ), genetic arithmetic ( ga ) back calculation and efficacious thickness method, the paper puts forward four design methods. the results say that the position where the max stress appears is not the only one but varies with the thickness of overlay
根據陜西省高速公路瀝青路面病害以及使用性能的實際情況，提出了代表彎沉值的計算方法以及下臥層模量的反演方法，在此基礎上利用彈性層狀體系理論、有限單元理論、遺傳演算法以及有效厚度法等理論對加鋪層厚度設計方法進行了研究。 -
The env protein deduced from env gene encodes the hydrophilic surface protein ( su ) and the hydrophobic transmembrane domain ( tm ) that determine the specific interaction between virus particles and cell surface receptors during retroviral entry. the su of retroviruses is a highly variable genetic element, containing receptor binding sites and major antigenic determinants. exjsrv - specific dna probes were derived. by using these dna probes in tissue hybridization. we successfully identified jsrv mrna expression and proviruses dna in sheep lung tissues infected with jsrv and control group has no postive signals, validating the use of exogenous virus - specific dna probes in the analysis of oncogenic proviral integration sites and identification of integrated exogenous proviral sequences
用地高辛隨機引物法標記exjsrv特異的env片段，制備探針，原位雜交檢測spa肺組織中的rna及前病毒dna ，結果表明spa患羊肺組織內有jsrvenv基因mrna的表達，同時也檢測到了前病毒dna ，而相應的陰性對照卻無陽性信號，證實外源性病毒特異的dna探針在致瘤性前病毒的整合位點和整合的外源性前病毒的檢測中具有可信度。 -
The exact pathogeny of leukaemia also is mixed other tumour is same, still cannot affirm, but think with genetic element, environment element and virus infection is concerned commonly
白血病的確切病因也和其他腫瘤一樣，仍不能肯定，但一般認為與遺傳因素、環境因素及病毒感染有關。 -
Integron, a genetic element of gene capture and expression in gram - negative bacteria, has been showed to play an important role in acquired antibiotic resistance of bacteria
近來的研究顯示，革蘭陰性菌中一種基因捕獲和表達的遺傳單位? ?整合子（ integron ）在細菌獲得抗生素抗性機制中起了重要作用。 -
For example, a high proportion of nonfunctional sequence makes it unlikely that a functional element will be destroyed in a chromosomal crossover event, possibly making a species more tolerant to this important mechanism of genetic recombination
例如，比例高的非功能排序就使得它在一次染色體搭橋事件中不太可能受到破壞，或許使得物種朝這個遺傳再結合的重要機制方面更有耐受性。 -
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。 -
Then, we establish the finite element analysis models of the antenna in different structure layout, and obtain the corresponding frequencies and model shapes. finally, according to the importance of each object, we set up the model of multiple objects that aims to maximize the first natural frequency and minimize the mass. combining orthogonal experiment and variant weighting coefficient method, we formed an effective multiple objects optimized algorithm basing on the neural network and genetic algorithm
本文首先詳細的敘述了天線結構的各組成單元，闡明了天線反射拋物面的形成原理；然後在ansys軟體環境中建立了不同結構布局下天線的有限元分析模型，分析計算了各種情況下天線的的固有頻率與振型；最後依據天線各指標的重要性，建立了以一階固有頻率最大、質量最小為目標的天線結構多目標優化設計模型，並基於神經網路和遺傳演算法，結合正交實驗和變加權系數技術，形成了一種有效的多目標優化演算法，在matlab平臺下實現了天線的結構多目標優化設計計算程序，求得了天線的最佳結構參數。 -
The paper details the objective, types and present research of production scheduling, discusses the current research state of the flow shop scheduling and the relative algorithm of this type of problem, pinpoints existing disadvantages, and then provides the generalization of ordinal coding of genetic algorithm and genetic computing element based on the order
本文詳細介紹了生產作業調度問題的目標、類型及研究現狀，並著重就流水型作業調度問題的研究現狀和該類問題的數學模型與相關演算法，如啟發式方法、進化演算法、鄰域搜索方法等進行了探討，指出了存在的問題。 -
To investigate the influencing law of technical elements in enterprise production, based on certain assumptions, a three - element ( technology, labor and capital ) output function is defined ; through conceiving and solving an optimization model under the condition of invariable total production cost and maximum output, this paper deduces the optimal proportioning relationship between optimum technical growth rate and conventional production factors - labor and capital, further constructs the optimization model of technical growth rate under total production cost constraint, and design a genetic algorithms program to solve such model
摘要為了考察企業生產中技術要素的作用、規律，在一定的假設條件下，對其技術要素下了定義，認為其產出函數包括技術、勞動及資本要素；通過構建與求解生產總成本，構建最大條件下的優化模型，推導出技術最優增長率與傳統生產要素勞動與資本的優化配比關系，進一步構造了企業在生產總成本約束下的技術增長率優化模型，並設計了遺傳演算法程序對模型進行求解。 -
2 ) the inductance transducer used to identify large wear particle is developed. the analytical theory of wear particle and detection windings are expatiated and inner magnetic distribution of inductance transducer is discussed, the geometry parameters are optimized by using genetic algorithm, and the finite element analysis method is used in the designing
2 ）研製了識別大磨損顆粒的材質和測定其粒度的電感傳感器，闡述了磨損顆粒與檢測線圈的解析關系，探討了傳感器的理論基礎，分析了電感式檢測傳感器內部的磁場分佈，並應用遺傳演算法優化了傳感器幾何參數，最後進行了有限元模擬分析。 -
( 4 ) because calculation of stress intensity factors using the finite element method of the linear elastic fracture mechanics cannot satisfy the need for the real - time monitoring and the real - time analysis of cracks in concrete dams, a four - layer neural network optimized by genetic algorithm and chaos optimization algorithm is proposed. the example shows that the optimized neural network can yield good results
（ 4 ）用斷裂力學有限元計算應力強度因子不能滿足對混凝土壩裂縫實時監測、實時分析中的要求，提出了利用遺傳演算法和混沌優化演算法改進的四層神經網路的解決方法，實例分析表明，本文提出的四層優化神經網路計算的應力強度因子接近於用斷裂力學有限元計算的應力強度因子。 -
Application of genetic algorithm on structural finite element model updating
遺傳演算法在結構有限元模型修正中的應用 -
The floatwall in combustor is an important structure for aero - engine to improve its power - to - weight. fga - fem was put forward to optimize the floatwall structure, and fga - fem combined fuzzy genetic algorithm ( fga ) and finite element method ( fem )
本文提出一種採用有限元方法（ fem ）和模糊遺傳演算法相結合的方法即模糊遺傳演算法-有限元的結構優化方法（ fga - fem ） ，並將該方法應用於燃燒室浮動壁結構的優化計算和分析，取得了較好的效果。 -
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。 -
In the third part of the paper, the express of design knowledge, relations between product model and researching methods are discussed. after indicating one viewpoint that the key of product modeling is the express of design knowledge this chapter gives a matter - gene model for conceptual design orientated for matter element transformation and genetic algorithm
第三章分析了設計知識的表示，模型與求解方法的關系，提出產品模型問題的實質是面向求解方法的設計知識表示，並據此建立了面向物元變換與進化求解相結合的物元基因模型。 -
First, the current optical system construction ' s optimization algorithms are based on the just optical system ' s preliminary construction which designers have selected. optical system program can not automatically change the optical elements ' nember. so that optical system design ' s intelligentized degree is not high. now this paper applies the genetic algorithms to lens design and shows that the genetic algorithms can effectively work in automatically changing the optical elements ' nember. next, this pape present a new computer design method that applies the genetic - simulated annealing algorithms to directly design the binary optical element
首先，由於現有的光學系統結構設計的優化演算法都是在選定了初始光學結構的基礎上，只對光學結構參數進行優化選擇，在優化過程中不能夠自動改變光學面數，導致光學系統設計的智能化程度還不是很高，採用遺傳演算法，實現了光學面的自動增減；其次，區別于傳統的二元光學設計方法，為避免其量化臺階數過大導致的成本及加工復雜度的增加，提出了運用混合優化策略遺傳-模擬退火演算法直接設計二元光學元件的新的計算機方法。 -
In this dissertation, structure and material property of piezoelectric laminated shell, construction of analytical model and finite element model, satisfactory reduction of dynamic model ' s order, satisfactory control of vibration, genetic optimization of sensor / actuator units " disposition, system synthesis method and its software realization, are discussed and some useful conclusions for the application are acquired
本文圍繞著壓電層合殼的結構與材料特性、解析模型與有限元模型的構造、數值模擬結果的分析、動力學模型的滿意降階、振動的滿意控制、傳感作動單元位置的遺傳演算法優化、系統設計方法及其軟體實現等諸方面的問題進行了研究與探討，並取得了一些可供應用參考的結論。 -
The forward - analysis method is finite element method. by some software i realize the forward - analysis calculation, and realize the calculation of duncan - chang model. it ' s feasible to execute displacement back - analysis by genetic algorithms by engineering example
正演方法採用數值方法中的有限單元法，用現在應用廣泛的有限元計算軟體進行正演計算，並首次在ansys實現了對土的非線性彈性模型的計算。
分享友人