genetic experiment 中文意思是什麼

genetic experiment 解釋
遺傳實驗
  • genetic : adj. 1. 遺傳（學）上的。2. 發生的，發展的；創始的。adv. -ically
  • experiment : n 實驗；試驗；嘗試 （of） a scientific experiment 科學試驗，科學儀器設備。 a new experiment in ed...
  1. In the experiment, the full code sequence of bar gene was cloned by pcr from transgenic herbicide resistant bobwhite wheat and checked. it was expressed in e. coli and its protein was determined. after having been properly modified, the bar gene which correctly codes pat was cloned into binary vector pbi121 and then transferred into lba4404 by triparantal crossing, which is the prerequisite work for genetic transformation

    本實驗從抗除草劑轉基因bobwhite小麥中，利用pcr克隆的方法擴增出bar基因全長，並在原核表達系統中表達，鑒定表達蛋白的活性，將能夠正確編碼ppt乙酰轉移酶的bar基因片段，經過適當的修飾構建入真核表達載體。
  2. " the hair turned black. " for alexeev, the experiment was exciting because it presented a new method that doctors could use to treat painful genetic skin disorders, such as epidermolysis bullosa, a condition that creates open sores and blisters on the skin ' s surface

    對于阿萊克謝耶夫來說，這次實驗是令人振奮的，因為它提出了一種新方法，醫生們可以用這種新方法來治療棘手的遺傳性皮膚疾病，比如表皮分解性水皰癥，這種病會使皮膚表面產生暴露的傷口和水皰。
  3. " the mutation was corrected, " said alexeev. " the hair turned black. " for alexeev, the experiment was exciting because it presented a new method that doctors could use to treat painful genetic skin disorders, such as epidermolysis bullosa, a condition that creates open sores and blisters on the skin ' s surface

    對于阿萊克謝耶夫來說，這次實驗是令人振奮的，因為它提出了一種新方法，醫生們可以用這種新方法來治療棘手的遺傳性皮膚疾病，比如表皮分解性水皰癥，這種病會使皮膚表面產生暴露的傷口和水皰。
  4. Considering of the differences of task scheduling between a grid and a distributed system, this dissertation designs a real number encoded mode that mapping every task to a random resource directly by improving the encoding mode of the traditional genetic algorithm, and gives a particular design to the encoding and decoding mode. at last, this algorithm is simulated in the grid simulator. the experiment results show that the reformative genetic algorithm not only has a holistic searching ability, but also makes a fast convergent speed, which provides a preferable performance

    本文根據網格計算任務調度的特點，提出了基於改進的遺傳演算法的網格任務調度，通過對傳統遺傳演算法的編碼方式進行改進，針對網格任務調度與一般分散式系統任務調度的不同之處，設計了資源?任務的一一對應的實數編碼方法，詳細設計了其編碼及解碼方式，最後在網格模擬器中進行了模擬，實驗數據證明了改進后的遺傳演算法即具有全局搜索能力，又具有較快的收斂速度，具有較好的性能，該實驗達到了本文以實現任務調度的最優跨度為目標的實驗目的。
  5. The results in this experiment are very important for further study on development of genetic engineering vaccine against rabies and on the investigation of molecular epidemiology of rabies virus

    實驗結果對狂犬病的分子流行病學、致病機理的研究及基因工程疫苗開發是十分重要的。
  6. The main contents of this paper is according to the structural characteristic of forced vibration, making use of the varying quantity data of free frequency of two different physical cantilever beam on the structural damage experiment basis, then using the bp network, genetic algorithm and the genetic bp algorithm to build up relation model between position, extent of structural damnification, and the varying quantity of free frequency

    其主要內容就是根據結構受迫振動特性，利用試驗測得兩根不同物理性質懸臂梁在受損傷產生裂紋前後的固有頻率改變量，使用bp網路、遺傳演算法、遺傳bp演算法，建立了結構損傷的位置、程度與結構固有頻率損傷前後改變量之間的關系模型。
  7. The who classification states that acute lymphocytic leukemia ( all ) should be classified by the pattern of reactivity of cell to a panel of lineage - associated antibodies and, where possible, genetic abnormalities. the expression of cd antigens on leukocytes is currently determined by flow cytimertry, which is expensive and labor - intensive, requiring 5 - 20ul quantities of fluores - cently labeled antibodies and allowing concurrent analysis for a limited number of cd antigens, usually three to four. from clinical point of view, an efficient method is required for analysis of a large number of samples in a single experiment

    我們設計了一種新型的細胞晶元，其原理是充分利用玻片的硬度高，透明性好的特點，應用細胞膜表面不同的抗原物質，與包被在玻片上的不同抗體發生特異性結合，通過一次實驗可以將被測細胞懸液中不同膜表型的細胞分離、固定在同一張玻片的不同特定區域，保持了細胞的完整性及活性，又可通過簡單的操作一次將多細胞懸液進行免疫分群。
  8. Disease control must begin prior to establishing the maximum yield experiment by selecting fields that permit proper crop rotation, utilizing tillage and other cultural practices that minimize the chances of disease development, and selecting cultivars that have the best genetic resistance to the diseases that are most likely to attack the crop

    在布置最高產量研究試驗前，首先應有病害防治措施，選擇滿足合理輪作的地塊、採用減少發病可能性的耕作栽培措施、針對最易造成供試作物減產的病害選擇抗病品種。
  9. 4. after having established genetic transformation system with tomato cotyledons as explant and determined the transformable of preculture time, incubation time and co - culture time, we set up the system of high frequency transformation of tomato cotyledons. then hbmp - 3m gene was transferred into tomato via agrobacterium - mqdiated transformation, and the resistant plants to hyg were obtained. by pcr analysis on part of the putative transformants, we identified that hbmp - 3m gene had been integrated into the genome of part of tomato plants. 5. transferred hbmp - 3 gene into tobacco via agrobacterium - mediated transformation and obtained the resistant plants to hyg. trans genie tobacco plants were confirmed by instantaneous expression of gus gene in calli detection, growth and bio - morphology analysis, hyg - resistant experiment and pcr analysis

    通過pcr檢測證實部分番茄抗性植株中已導入hbmp - 3m基因；人骨形成蛋白一3成熟膚基因和全長基因分別轉化番茄和煙草的研究5 .通過農桿菌介導法將hbmp一3全長基因導入煙草，並且獲得了hyg抗性植株，通過gus基因瞬時表達檢測、轉化植株的生長情況及形態學分析、 hyg抗性鑒定及pc尺檢測，證明目的基因己經整合到煙草基因組中。
  10. In the algorithm level, currently various training algorithms of neural networks, including gradient algorithms, intelligent learning algorithms and hybrid algorithms, are comparatively studied ; the optimization principle of bp algorithm for neural networks training is analyzed in detail, and the reasons for serious disadvantages of bp algorithms are found out, moreover, the optimization principle of two kinds of improved bp algorithms is described in a uniform theoretic framework ; and the global optimization algorithms of neural networks, mainly genetic algorithm are expounded in detail, it follows that a improved genetic algorithm is proposed ; finally the training performances of various algorithms are compared based on a simulation experiment on a benchmark problem of neural network learning, furthermore, a viewpoint that genetic algorithm is subject to " curse of dimension " is proposed

    在演算法層，本文對目前用於神經網路訓練的各種演算法，包括梯度演算法、智能學習演算法和混合學習演算法進行了比較研究；對用於神經網路訓練的bp演算法的優化原理進行了詳細的理論分析，找到了bp演算法存在嚴重缺陷的原因，並對其兩類改進演算法-啟發式演算法和二次梯度演算法的優化原理，在統一的框架之下進行了詳盡的理論描述；對神經網路全局優化演算法主要是遺傳演算法進行了詳細的闡述，並在此基礎上，設計了一種性能改進的遺傳演算法；最後基於神經網路學習的benchmark問題對各種演算法在網路訓練中的應用性能進行了模擬研究，並提出了遺傳演算法受困於「維數災難」的觀點。
  11. The genotype is a main factor in the genetic transformation via agrobacteriwn - mediated. the results of orthogonal experiments of the factors which affect mainly the transformation illuminates that the erniuxin genotype + bacterium 15 x + explant + dip - dye is the best one. the cocultivation time is 28 days. the experiment shows that : the erniuxin cotyledon regeneration frequency is very high, and that the dongnong901 hypocotyl regeneration frequency is very high

    確立了農桿菌介導轉化過程中基因型是影響轉化率的主要因素。通過極差分析，基因型為「二牛心」 ，菌液濃度15倍的，外植體為子葉，感染方法為浸泡法是最佳的組合。農桿菌與外植體共培養的時間為28h 。
  12. Site experiment were carried out on the testing vehicle for ahs and the magnetic markers road in national intelligent transport system center. also, study on multi - sensor information fusion and control model by using neural net system, fuzzy logic and genetic algorithm were carried out. the work completed are as follows mainly : ( 1 ) hardware system for lane keeping system including magnetic marker, magnetic sensor, control system and executor machine were designed

    本文以國家智能運輸系統研究中心的自動公路系統試驗車和專用的磁軌釘道路為工作平臺，在大量的現場實驗基礎上，針對基於磁軌釘導航的車輛車道保持技術中的若干問題展開研究，運用神經網路、模糊邏輯、遺傳演算法等方法在多傳感器信息融合、控制模型等方面進行了系統的研究，主要完成了以下幾方面的工作： （ 1 ）對車道保持系統硬體平臺進行了設計，論述了導航設施? ?磁軌釘的設計過程和車載工控機、步進電機等的選擇。
  13. 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。
  14. Firstly, we introduced the main idea, the formalized description, and the basic flow of co - evolution algorithm. then, from the point of pattern analyzation, we established the mathematics model of the multi - population co - evolution algorithm based on pattern replicator equation of the single population genetic algorithm, and made the theoretical analysis and compare for the method of best choice and the method of random choice of the co - evolution algorithm. we put forward a new method for the individual fitness evaluation, and validated the performance of the new method by the simulation experiment

    首先，在介紹了協進化演算法的核心思想、形式化描述和基本演算法流程的基礎上，從模式分析角度出發，建立了基於模式復制方程的多群體協進化演算法數學模型，對協進化演算法中的最優選擇法和隨機選擇法進行了理論分析與比較，提出了一種新的個體適應度評價方法，並通過模擬實驗驗證了新方法的效率。
  15. This thesis presented a modified genetic operators in clustering analysis, and firstly introduced good point set - based clustering algorithm - gameans, which characterized by inferior sensitivity to initial, robustness, and removable premature, and also firstly presented a hybrid method with ga and gameans. experiment show that the hybrid method with general performances can find better clustering results

    文中討論了聚類分析的遺傳操作改進方法，首次提出了基於佳點集ga的聚類演算法gameans ，降低了傳統聚類演算法對初始化的要求，具有收斂快、較強的穩健性和可避免早熟的特點。
  16. Tissue culture of soybean ( glycine max l ) and stem mustard ( brassica juncea mao ) in vitro and genetic transformation of soybean by agrobacterium tumefaciens were studied in this experiment

    本論文研究了大豆的離體再生和根癌農桿菌介導的遺傳轉化及榨菜的離體培養。
  17. In the 4th chapter, we first introduce basic concept, compute flow, main elements, and trait of the genetic algorithm. then we use our g - a program to analyze the raman spectroscopy data of mixed sample composed of ten species of ore. we run the g - a program repeatedly under certain condition and then do the experiment under different conditions

    第四章中首先對遺傳演算法的基本概念、流程、要素和特點進行了介紹，然後採用自己設計的遺傳演算法程序對10個組分的混合礦石樣品進行了分析，對同一條件下演算法多次計算的結果和不同條件下演算法的表現進行了討論，分析了演算法設計和基本參數的不同對計算結果的影響，驗證了遺傳演算法用於多組分樣品拉曼光譜數據分析的可行性、有效性和精確性。
  18. Thirdly, the weight and threshold of bp neural network model was optimized by genetic algorithm ( ga ), which has stronger macroscopic search and global optimization property, based on bp network model of the preparation of superfine quartz powder. this model is named ga - bp, and improves the generalization capability and the parameters forecast precision of bp network model, and was proved to be correct by both theoretical analysis and experiment

    再次，本文以粉石英制備的bp網路模型為基礎，利用遺傳演算法（ ga ）較強的宏觀搜索能力和良好的全局優化性能，對bp網路模型的權值和閾值進行優化，極大地提高了bp網路模型的泛化性能和參數預測精度，將經過ga優化后的bp網路模型簡稱為ga - bp網路模型。
  19. It can be concluded from the experiment results that hatchery seed has lower genetic variation and large - scale hatchery seed releasing affects the genetic diversity of the natural population. the shrimp distributed along china coast in bohai sea and yellow sea may consist of more than one populations. the viral disease resistant ability of f. chinensis is proved to be genetically inherited and can be improved by genetic selection

    一通過對實驗結果的進一步分析認為：中國對蝦人工育苗的過程使後代群體的遺傳多樣性下降，人工培育苗種的大規模放流影響了自然群體的遺傳多樣性； ，分佈於我國沿海的中國對蝦可能由多個自然群體構成，還存在未被發現的種質資源：中國對蝦抗wssv病毒感染是由遺傳決定的，選育可提高中國對蝦對wssv的抗性。
  20. Research field were transgenic breeding, marker assisted breeding, molecular design breeding, related plant functional gene, genetic diversity, molecular maker genetic, basic theory and experiment technology of genetic breeding

    研究領域主要涉及轉基因育種、分子標記輔助育種、分子設計育種以及相關的植物功能基因、遺傳多樣性、分子標記遺傳及遺傳育種基礎理論和實驗技術等。
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