遺傳集 的英文怎麼說
中文拼音 [yízhuànjí]
遺傳集
英文
hereditary set-
The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed
較好地解決多阻尼比反應譜擬合問題；本文方法通過一次運行就能獲得一組具有集系特性的地震動，在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢，產生的人造波或人造波集系可滿足工程抗震設計需要；在遺傳演算法中，交叉概率和變異概率是影響收斂速度的重要參數，本文採用的改進自適應交叉概率和變異概率，可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率，以保證演算法始終以較好的速度向pareto最優解集逼近。If a disease has a genetic basis, it will occur in familial aggregates.
如果一種疾病有遺傳基礎，它將以家族聚集性的方式發生。On - weakly hereditarily closure - preserved family and cc - spaces in this paper, we discussed - weakly hereditarily closure - preserved family and cc spaces respectively
本文主要由兩個部分組成，分別討論了-弱遺傳閉包保持集族和cc _空間。In other words, d. burke and r. engelking and d. lutzer proved that a regular space is metrizable space if and only if it has a - hereditarily closure - preserving base in 1975, and introduced weakly hereditarily closure - preserving families, which proved that a regular k - space has - weakly hereditarily x closure - preserving bases is metrizable space, too
Burke ， r engelking和d lutzer證明了正則空間是可度量化空間當且僅當它具有遺傳閉包保持基，並引入了弱遺傳閉包保持集族（ weaklyhereditarilyclosure - preservingfamilies ） ，同時證明了具有弱遺傳閉包保持基的正則的k空間是可度量化空間。In this study fourteen wild lespedeza germplasms were collected from beijing, shanxi and heilongjiang province in 2001 and 2002, and a nursary of these germplasms was established. genetic diversity of the lespedeza populations were studied at morphological. allozyme and rapd levels
本研究以2001 - 2002年從北京、山西和黑龍江三個地區收集的14份野生胡枝子屬植物為材料，建立種質資源圃，從形態學標記、等位酶標記和rapd標記三個方面進行了胡枝子屬植物遺傳多樣性的研究。Since i was three years old, i have been harboring a most unambitious fantasy to build a home of my own and play the role of a mother
從3歲起我就十分沒出息的幻想自己以後長大有自己的家，扮演著母親的角色；我不知這是否是「集體無意識」中遺傳下來的。The long - term domestication of liquor - making microbes under the unique liquor - making environment of maotai liquor ( high temperature starter - making, high temperature stacking fermentation, and high temperature anaerobic fermentation etc. ) and the succession of microbial groups through heredity, mutation, growth and derivation etc. had accumulated abundant high temperature resistant, high acid resistant and high alcoholicity resistant extreme microbes
摘要茅臺酒獨特的極端高溫制曲、高溫堆積發酵、高溫厭氧發酵等釀酒環境長期對釀酒微生物進行馴化，各種微生物經過遺傳、變異、消長和衍化等微生物群落的演替，促成了釀酒微生態環境中豐富的耐高溫、耐高酸和耐高酒度等極端微生物的富集。A thorough family history should be taken because many cardiac disorders ( eg, coronary artery disease [ cad ], systemic hypertension, bicuspid aortic valve, hypertrophic cardiomyopathy, mitral valve prolapse ) have a heritable basis
很多心臟疾病（如冠狀動脈疾病（ cad ） 、全身性高血壓、二葉主動脈瓣疾病、肥厚型心肌病、二尖瓣脫垂）都有遺傳基礎，因此應收集詳盡的家族病史。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。Phytoremediation for heavy metal contamination in soil, metal hyperaccumulator and their genetic engineering
土壤重金屬污染的植物修復與金屬超富集植物及其遺傳工程研究The other classfies the calculation of mbps into the solution of inequation based on heuristic knowledge of mbps of optimal directional coordination setting in complex multiloop network and comes into equivalence of 0 - 1 integral second layout problem. on the basis of the principle of gene optimal evolution, a new approach to determine mbps is first presented and decreases the computational complexity of mbps problem
其二，利用復雜環網方向保護最優整定配合中最小斷點集（ mbps ）的啟發知識，將mbps的計算歸結為解不等式，進而等價為0 ? 1整數二次規劃問題，基於基因遺傳優化計算原理，首次提出了mbps問題的基因遺傳演算法，降低了問題的計算復雜性。Taking load uncertainties, infeasibility problem and multiple objection of the reactive power optimization in the radial distribution system into consideration, loads are modeled as fuzzy interval numbers. fuzzy power flow is proposed based on fuzzy interval load for the more practical membership function of line losses rate and maximal voltages offset. this thesis presents multiple objection model of the reactive power optimization considering uncertainties using the fuzzy set theory
對配電網電壓無功優化問題中負荷的非概率性的不確定性問題、多目標問題、約束不可行性問題進行了研究，用模糊區間來描述實際的負荷情況，並用負荷的模糊區間值計算配電網的潮流，得到有功功率損耗和電壓的模糊區間值，使網損率和節點電壓最大偏移量的隸屬函數更接近實際情況；將改進遺傳演算法與模糊集理論相結合，通過求解多目標函數和約束條件的模糊集合的交集，得出網損率和節點電壓最大偏移量最小的最優運行狀態。Integrated operator genetic algorithm for solving multi - objective flexible job - shop scheduling
多目標柔性作業車間調度的集成運算元遺傳演算法Application of the algorithm for different observed head data sets indicate that the model can be successfully applied for aquifer systems where data available may be sparse and with errors. calculated groundwater heads by identification results in fourteen parameter areas are fit for observed heads in field, and flowing filed is similar. the study demonstrates the effectiveness of the ga global optimization model for parameter identification, which is an important step towards real system simulation and effective planning and management of groundwater resources
通過算例研究，表明上述演算法可行，且rbf神經網路方法和退火遺傳演算法對地下水系統參數的識別效果都較好，而退火遺傳演算法較之標準的遺傳演算法具有更好的收斂性將演算法應用到北京市密懷順地區，在收集、分析研究區資料基礎上，建立了北京市密懷順平原區地下水模擬模型，並用遺傳演算法進行了地下水系統參數識別，在十四個分區情況下，計算水位與實際水位擬合的較好，各應力期末的計算與實測等水位線基本一致，表明該識別值較為合理。Genetic algorithm for integral - level set global optimization
水平集求全局最優的遺傳演算法實現Genetic algorithm implementation of integral - level set global optimization
水平集求全局最優的遺傳演算法實現Finally, jinduicheng mo. company open - pit is quoted as an instance for building mine transportation vechile scheduling system model, and according to the model, adopt genetic algorithm to study the optimization of mine transportation vechile scheduling system. a rational project is given to this problem, the paper also analysized the optimial design of mine transortation vechile scheduling, the model offering in this paper, convergence of optimal algorithm and data bank management, and transportation project of minerals and disposals is optimized, which realize the decision of transportation project and data visibilization, and wich improves the science and information process of transportation department management
最後，論文以金堆城鉬業公司露天礦為例建立礦山運輸車輛優化調度模型，結合所建立的礦山車輛優化調度模型，採用遺傳演算法對礦山運輸車輛系統進行優化研究，為其提供合理的體系方案。並對礦山車輛優化調度系統設計進行了詳細分析，提出的礦山車輛優化調度系統，集優化演算法與數據庫管理分析於一體，進行礦巖運輸方案的優化，實現調度方案決策的可視化、運行數據的可視化，促進運輸部門管理的科學化、信息化進程。Gga has been applied successfully in some optimization applications, for example knapsack problem and travelling salesman problem etc. in second chapter, we first introduce how to construct a goog - point set and the steps to solve problem. then give an example of how to arrange sports items in a track and field game to use gga in the end
它採用數論中佳點集的方法來構造新的遺傳運算元，利用佳點集的性質和特點來提高演算法的效率和收斂性，並且已經成功的在一些優化問題中得到了應用，例如背包、貨郎擔等典型的np難問題。Without the proper balance of the interrelated components of an intensive management system, the optimum benefit from genetically improved planting-stock would not be realized.
對集約經營內部有關成分不作適當調整，經遺傳改良的定植苗木的優越性，就不可能得到發揮。The team paired fungal samples in petri dishes to see if they fused ( see photo below ), a sign that they were from the same genetic individual, and used dna fingerprinting to determine where one individual fungus ended
他們採集了一些樣品，與實驗室培養的真菌比對，看它是否由多個相同的個體組成，並用dna指紋技術分析它的遺傳性質，確定組成它的每個成員的大小。分享友人