簇變 的英文怎麼說

中文拼音 [cùbiàn]
簇變 英文
cluster mutation
  • 簇 : Ⅰ動詞[書面語] （聚集; 簇擁） crowd together; form a cluster; pile up Ⅱ名詞（聚集成的團或堆） clus...
  1. Comprehensive cellular responses was found in human amnion fl cells following exposure to low concentration of mnng, such as the lowering of dna replication fidelity resulted from alteration of dna polymerase profile ; activation of a lot of transcription factors, such as api, creb, nf - kb etc ; clustering of egfr ( epidermal growth factor receptor ) and tnfr ( tumor necrosis factor receptor ) and activation of camp - pka - creb and jnk / sapk signal pathways

    我們發現，低劑量mnng處理后的人羊膜fl細胞有廣泛的細胞反應，並有多個信號轉導通路的激活和基因表達的改變。例如dna復制保真度下降， dna聚合酶譜發生改變，應用報告基因技術和底物磷酸化檢出技術證明細胞一系列轉錄因子如ap1 、 creb 、 nf b等被激活，細胞表面受體如表皮生長因子受體、腫瘤壞死因子受體發生聚簇，細胞信號轉導通路camp - pka - creb和jnk sapk被激活。
  2. Shaking flask experiments and hplc analyses showed that the four mutants no longer produced the toxic oligomycin, and only made four components of avermectins b, which were avermectin b1a, b1b, b2a, b2b. the yields of avermectins b in these mutants were separately equal to those in cz8 - 73. this revealed that olma genes deletion did n ' t affect the biosynthesis of avermectins

    將4株經southern雜交驗證正確的基因缺失突變株進行搖瓶發酵和hplc檢測，發現4個突變株均不再產生寡黴素而僅產阿維菌素b組分，阿維菌素的總產量和b1的產量與出發菌株相當，說明寡黴素pks基因簇的缺失並不影響阿維菌素的生物合成。
  3. Moke and fmr studies were performed on single crystalline fe ultathin films epitaxially grown on iii - v semiconductor gaas substrate with thickness 4. 1 - 33 monolayer ( ml ). a theoretical mode for fitting fmr experimental data was established. the results demonstrated the structures and reproduced the evolution of the magnetic properties of ultrathin films with various thickness from the state of superparamagnetic nano - cluster through coexistence of two magnetic phases to continuous film, especially the change of magnetic crystalline anisotropy from unixial to cubic

    1 - 33原子層厚度（ monolayer ，簡稱ml ）的fe單晶超薄膜進行了鐵磁共振（ fmr ）和磁光研究，建立了理論模型對鐵磁共振實驗結果進行了模擬，重現了不同厚度的超薄膜，從納米團簇到兩相共存的過度階段直至連續薄膜結構與磁性的變化，特別是磁各向異性從單軸各向異性向立方各向異性轉變的演化過程。
  4. Theoretic study on nuclear fusion induced by multiple explosions of deuterium clusters in strong laser field

    強激光場中氘團簇引發核聚變的復合膨脹機制
  5. This article points out that zhengzhou cantonal space structure should change from single - central, circling expanding to multi - central, separated conglomeration, forming tufty space structure pattern linked by information network, communication network and green belt

    認為鄭州市區空間結構應改變以往單中心圈層擴展的發展模式，向多中心、分散組團式轉變，形成以信息網、交通網和綠化帶相互連接的簇團式空間結構模式。
  6. Analysis of the sequence revealed that adda resembled nifs of nitrogen - fixing bacteria and dnda. the entire add gene cluster showed 78 % identity to dnd gene cluster from s. lividans

    同源性比較揭示add基因簇的adda基因與固氮酶基因nifs高度同源， add與變鉛青鏈黴菌dnd核苷酸的同一性為78 。
  7. The innovations of this thesis can be summarized into three points. firstly, the average relative velocity is introducd into a novel adptive weighted clustering algorithm as one important parameter of weight, then it increases the stability and self - adaptability of cluster head. secondly, a new approach to calculating weight is suggested by integrating subjective and objective factors. it is verified by comparison with other approaches to selecting weight. thus the velocity of weight responding to the changes of network topology is increased. finally, using a som neural network to create a classifying model enables every node to learn to identify by itself the role in manet

    本文的創新點有三個:首先本文在wca和aow分簇演算法的基礎上，引入了平均相對移動速度作為權值重要的參數，提出了一種新的基於權值的自適應分簇演算法，提高了簇頭在移動中的穩定性和自適應性;其次，提出了利用主客觀綜合賦權法確定權重的權值計算方法，通過與其他權重選擇方法比較，網路結構變化的權值響應速度得到了改進;最後，論文利用自組織特徵映射神經網路建立分類模型，使得網路中的節點可以自學習地確定簇中角色。
  8. The number of cascade particles changes according to the incident cosmic ray energy, observation height, etc

    到達地面的簇射粒子數目會隨不同因素而改變，包括原初宇宙射線的能量、觀測高度等。
  9. Streptomyces low copy number plasmid scp2 * is also employed for the cloning and recovery of large dna fragment from streptomyces. as scp2 * can accommodate large dna insertions and is efficiently transmissible among its permissive hosts such as s. lividansbut seemed to be unable to replicates in streptomyces sp. fr - 008, it might be a suitable vector for the cloning of the entire fr - 008 pks gene cluster through gene replacement followed by conjugation with 5

    Scp2 *可以在變鉛青鏈黴菌等許可宿主內復制並在許可宿主間有效轉移，但似乎不能夠在鏈黴菌fr - 008中復制，因此可能適合於在鏈黴菌fr - 008中通過進行基因置換及隨后的鏈黴菌fr - 008和變鉛青鏈黴菌間的接合過程來克隆完整的fr - 008生物合成基因簇。
  10. This view will dim slowly, for a few billion years at least, as the faint clusters drift still farther apart

    至少再過數十億年，這個視圖會慢慢變得模糊，由於圖上模糊的團簇會逐漸飄散（以至於變得更模糊） 。
  11. The realm shall be deserted in the most pitiful way, and the harvest threshing floors will be overgrown once more by forests rich in fruit

    土地在大多數令人同情的道路中變得荒蕪人煙，地上的收成打穀會再一次地通過森林里的肥沃果實而簇葉從生。
  12. The dnd cluster seemed to express when it was carried by the high copy - number plasmid because complementation of individual dnda, dndb or dndc mutation could be observed and such expression did not seem to influence the normal dnd expression in wild type s. lividans 1326

    而在高拷貝質粒上的dnd基因似乎是李愛英變鉛青鏈黴菌dna異常修飾系統的分子生物學研究能表達的，因為它能紅補分別在dn劇、 dndb和咖jc發生單個基因突變的菌株，而且這種表達似乎也不會影響野生型菌株1326中原有的dnd基因簇的表達。
  13. The ab initio calcu1ation by selecting cluster mode1 with different size showed that with the decrement of model size the quantum - sized effect was more prominence, the energy distance was bigger near fermi energy, the energy schism was also more obvious

    選取不同尺度的簇模型從頭計算表明，隨著尺度的減小量子尺寸效應越發顯著，費米能級附近的能級間隔變大，能級分立現象更加明顯。
  14. The results showed that the in - situ formed tibi particles which had a size of about 50nm, exhibited a homogenous dispersion in the copper matrix. moreover, the interface between the nanoscale particles and the copper matrix was clean, and there was no certain location relationship. due to their reinforcement, the tensile strength and hardness of the in - situ cu - tib _ 2 nanocomposite significantly improved

    通過光學顯微鏡、 tem 、 xrd等對cu - tib2原位復合材料進行了金相組織、微結構分析，原位復合材料的鑄態金相組織中彌散分佈著團簇狀的tib2顆粒；形變態金相組織中tib2顆粒呈纖維狀排列； tem觀察表明：在基體內存在著尺寸約為50nm 、彌散分佈的tib2顆粒，且tib2顆粒與基體之間界面清晰，但由於tib2結構與銅晶體結構的差別較大， tib2顆粒與基體之間無固定的位向關系；納米tib對銅基體有良好的增強作用。
  15. In this study, the suitable parameters for the introduction of plasmids phz1358 and pset152 into s. nanchangensis ns3226 from e. coli were tested for developing an conjugation system for s. nanchangensis ns3226. a dnd gene cluster, which encodes an unknown modification system for 5 hvidans 1326 and renders its dna susceptible to site - specific double - strand dna cleavage during electrophoresis was conjugated from e. coli into s. nanchangensis ns3226

    將克隆在整合型載體pset152上的變鉛青鏈黴菌1326的dnd基因簇通過接合轉移導入野生型南昌鏈黴菌ns3226中進行異源表達，觀察到接合轉移子的dna獲得了在含fe ~ （ 2 + ）的電泳緩沖液中電泳時降解的表型。
  16. Computational simulation in nano size alloy system chapters, we applied an approach to the development of many - body interatomic potentials for niti, nizr alloys, the database used for the development of a potential includes both experimental data and a large set of energies of different structures of the material generated by dft calculations. the molecular dynamic simulation results prove the structure change in nano materials grain size

    納米合金體系的計算模擬通過用dft詳細地對niti二元合金簇的研究導出其原子間相互作用並加以模擬研究納米晶界結構與穩定性，結果表明dft導出的相互作用函數更適合研究納米材料晶界或非晶納米合金行為，而用經驗勢能函數的模擬納米合金相變有很好的模擬結果。
  17. In the paper, li5mn4o83 + li5mn12o24 -, li5mn16o32 +, li17mn16o329 + clusters selected by " seed atoms " were calculated theoretically by means of the quantum chemical dv - xa calculation method. form the angle of electronic structure, the status of lithium ion and the electrochemical properties of lixmn2o4 were discussed preliminarily according to different conditions ( x = l, 2 ). based on calculation results, it ' s found that the jahn - teller distortion, which was thought to lead to poor cyclability, occurred during the discharge of lixmn204, and we also confirmed the formation of a novel phase with low energy after overdischarge ( x = 2 )

    為了從微觀上認識錳系正極材料的結構和電化學性能之間的關系，本文提出了採用量子化學離散變分x （方法，對結合「種子原子法」選取的li5mn4o83 + 、 li5mn12o24 - 、 li5mn16o32 + 、 li17mn16o329 +等錳系正極材料的原子團簇進行了理論計算，從電子結構上初步探討了鋰離子嵌入正極材料后的存在形式以及鋰離子的嵌入對電極材料電化學性能的影響，同時還從結構上對鋰離子電池的循環性能和容量進行了初步的討論。
  18. Clusters of atrophic prostatic acini with proliferatie changes. at low magnification, it may be mistaken for adenocarcinoma ; howeer, they lack cytologic features of cancer such as prominent nucleoli

    簇狀萎縮的前列腺腺泡伴發增生性改變。低倍鏡下容易誤當作腺癌，盡管如此，仍缺乏典型的癌細胞特徵，如核仁顯著等。
  19. Attachment to host tissue is essential for colonization by most mucosal pathogens, such as mycoplasma hyopneumoniae. according to the reported sequence of p97 gene in strain 168, a pair of primers was designed and the rl region of p97 gene in strain 168f485 was amplicated by pcr

    本研究根據已報道的序列為參考，設計一對帶有ecor和hind酶切位點的引物，並通過引物的定點突變，利用pcr方法從豬肺炎支原體168f485株擴增到其黏附因子p97基因的抗原決定簇r1區。
  20. Based on the results that were investigated on the mutants etr1, a member of ethylene receptor genes, etr1, ers1, etr2, ein4, ers2, ethylene receptor genes might play a negative role in regulating response to ethylene

    Etr1是五個乙烯受體基因家簇（ etr1 ， ers1 ， etr2 ， ein4 ， ers2 ）中的一員，對他們的功能缺失突變體研究表明他們在乙烯受體系統中可能是起負調控作用。
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