鏈離解 的英文怎麼說

中文拼音 [liànjiě]
鏈離解 英文
chain dissociation
  • : Ⅰ名詞1. (鏈子) chain Ⅱ動詞(用鏈栓住) chain; enchain Ⅲ量詞(計量海洋上距離的長度單位) cable length
  • : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
  • : 解動詞(解送) send under guard
  1. The formed ca - h radicals lead to the variations of the dihedral angles and. thus verified our own hypothesis. as for the calculation of small molecule ' s c - h bde, density functional theory ( dft ) b3lyp is employed

    量子化學計算表明,多肽的ca - h的焓( bde )較小,易抽氫,且抽氫前後多肽構象發生了很大的變化,這可以從構象角、的變化看出,從而從理論上驗證了我們的觀點。
  2. The determination of schiff base - acyclic crown ethers dissolubility and acid dissociation constant

    堿型羧酸開冠醚溶性及酸常數的測定
  3. Thesis point out : agricultural product market information system construction lag behind on market for farm products construction, scale of market for farm products, institutionalized degree low grade factor influence market for farm products collecting and distributing and transmitting the function to information relatively. agricultural product stronger in price fluctuation, dependence and a low one getting dispersed, in the forming process of and the price of agricultural product : basic price form with market, producing area price can reflect person who consume - price etc. factor weaken price direction function of information. agricultural product supply and marketing chain does not cooperate in the play chess state that caused inside system reasonless behavior of participant and feedback mistake of message understand

    指出:農產品市場信息體系建設滯後於農產品市場建設、農產品市場的規模化、制度化程度較低等因素影響了農產品市場對信息的集散和傳遞功能;農產品價格較強的波動性、相關性和較低的散性,以及農產品價格形成過程中:基礎價格形成與市場之外、產地價格不能反映消費地價格等因素弱化了價格信息的導向功能;農產品供銷的非合作博弈狀態造成內部參與者的系統非理性行為和對反饋信息的錯誤理
  4. In this dissertation, we firstly prove that any dirichlet problem is indeed equal to a voltages problem of networks. we give five solutions to dirichlet problem in two dimensions ; among these five solutions, we prove that the iteration solution and the solution of relaxations are exponential convergence, then we estimate their respective convergence rates ; secondly, we discuss random walks on general networks, prove that there is an one to one correspondence between networks and reversible ergodic markov chains ; thirdly, we give probabilistic interpretation of voltages for general networks : when a unit voltage is applied between a and b, making va = 1 and vb = 0, the voltage vx at any point x represents the probability that a walker starting from x will return to a before reaching b ; furthermore, we study the relationship between effective resistance and escape probability : starting at a, the probability that the walk reaches b before returning to a is the ratio of the effective conductance and the total conductance

    本文證明了任何邊值的dirichlet問題都可轉化為求電路電壓的問題:給出了計算平面格點上dirichlet問題的5種方法:證明了迭代法和松馳法都是指數收斂的,並分別給出收斂速度的估計;討論了一般電路上的隨機徘徊,驗證了電路與可逆的遍歷markov是一一對應的;給出了電路電壓的概率釋:當把1伏電壓加於a , b兩端,使得v _ a = 1 , v _ b = 0時,則x點的電壓v _ x表示對應的markov中,從x出發,到達b之前到達a的概率;進一步地,給出了逃概率與有效電阻之間的關系:從a出發,在到達b之前到達a的概率為有效傳導率與通過a的總傳導率之比。
  5. Elevation of intracellular calcium ions may be partly induced by increased influx through sarcolemma l type - calcium channels. intracellular calcium elevation, on one hand, would activate calpain, a calcium - dependent cysteine protease that degrade the myofibrillar proteins and cause muscle atrophy ; on the other hand, result in activation of calcineurin which enhance the activity of mhc i promoter and inhibit a shift of mhc isoforms from slow to fast in soleus

    這樣,可能使得萎縮比目魚肌細胞內鈣子水平升高,細胞內鈣子靜息濃度的增加一方面激活calpain ,增加收縮蛋白的降,使肌肉萎縮;草四軍醫大月卜祠成士學位論文另一方面通過激活鈣調神經磷酸酶,增加快型mhc基因的表達,使骨骼肌肌球蛋白重( mhc )發生由慢型向快型的轉化。
  6. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ,其分子量恢復到23kd ,證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠黴菌a1所產原酶xynb之間酶學性質的比較發現:三種酶的最適ph差異不大, xynb和xynba均為5 . 2 , xynbb為5 . 0 ; xynb和xynba的最適溫度均為60 , xynbb降為50 :在耐熱性上, xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ; xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ,明顯低於原酶的比活2814 . 45iu mg ; xynb和xynba的km值相當,分別為21 . 56 ( g kg )和20 . 87 ( g kg ) ,而xynbb的km值較大為27 . 10 ( g kg ) ; xynba和xynbb的vmax相差不大,分別為4568 mol mg ? min和5329 mol mg ? min ,明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性,對胃蛋白酶和胰蛋白酶有很好的抗性,且對作用環境中的各種子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶產物的糖份分析發現:以樺木木聚糖為底物時,酶產物主要為木三糖和木四糖,含量分別為68 . 43和16 . 50 ,另外還含有11 . 79的木二糖;以玉米芯木聚糖為底物時,酶產物主要為木二糖和木三糖,含量分別為81 . 78和11 . 55 。
  7. Several key techniques of carving and milling machine cnc system are deeply studied they include : the transformation, data rebuild and interface design of huge volume nc program produced by cam ; the algorithm of cubic parametric spline pre _ interpolation and high speed real time interpolation in the cnc system, which. will gain a much higher surface precision and cutting speed ; methodology and algorithm of movement velocity acceleration control on a real time forecast _ and _ prejudge basis is designed. therefore, a smooth movement is insured. the shake and noise problem caused by non _ uniform pules for driving stepping or servo motor is solved by an improving algorithm to generate uniform pules

    同時,本文對基於統一的pc平臺的雕銑機數控系統中的幾項關鍵技術進行了深入的研究,包括: cam生成加工程序的傳送、接收、讀取及其加工表的生成和實時重構;對cam生成的散數據進行三次參數樣條插值和基於累加弦長的三次參數樣條插補控制,保證加工工件表面的精度和光順性;設計具有「前瞻」功能的自動升降速控制方法,保證加工過程的平穩性;通過脈沖均勻化,有效地決加工過程中因為脈沖不均勻而引起的震動問題。
  8. At first, information security in internet environment is analyzed in this paper, under the situation of an enterprise in jiangxi, in which the implement of supply chain management information system is carried out. then based on some approaches in common use for resolving information security, and based on the fact of this enterprise, this paper from point of view of physical isolation brings a new way named " wengcheng " strategy to resolve this problem

    本文首先就江西某企業實施網路環境下的供應管理信息系統帶來的信息安全問題作了一定的分析,並在比較目前常用的幾種信息安全決方案的基礎上,根據企業實際應用背景,從物理隔的角度出發,提出了「甕城」信息安全決總體架構模型。
  9. Recently, a new gene dr0167 ( pprl or irre ) that serves as a general switch for downstream dna repair and protection pathways via its regulatory function on the gene expression of reca, ppra was discoveried. expression of d. radiodurans pprl also promotes dna repair and protection pathways and enhances the radioresistance of e. coli. this finding provides a new clue to understand the mechanism of dna repair, especially double strand break ( dsb ) repair

    最近我們實驗室在耐輻射球菌電輻射敏感株中鑒定了一個與電輻射抗性相關的基因ppri ,該基因可能通過調控dr細菌reca 、 ppra等基因的表達加速對電輻射引起的dna損傷修復,而在大腸桿菌中表達ppri基因能促進reca 、 soda等表達水平顯著提高,使其抗輻射和抗氧化能力明顯增強,這將為我們理其特殊抗性機制,特別是雙斷裂修復提供新的線索。
  10. A solid - state shear compounding technology based on pan - milling ( s3c ) has established, by which the graphite with weakly combined structure are exfoliated and then compounded with pp at nanoscale. the obtained pp / graphite nanocomposites have greatly enhanced electrical and thermal conductivity. their structures and properties were characterized by analysis of particle size and distribution, sem, tem, xrd, the electrical conductivity, the thermal conductivity and heat - decomposition temperature etc. by taking advantages of the layered inorganic fillers with a weak interaction between layers ( e. g

    磨盤碾磨剪切力場使pp分子斷裂,相對分子質量減小,石墨的導熱和潤滑性能抑制pp的降和粉碎,使pp / yep250 (膨脹石墨250倍)復合粉磨盤碾磨固相剪切復合技術及導電導熱pp /石墨納米復合材料的制備與性能體中, pp分子運動活性提高,結晶能力增強,為pp在熔融加工中進一步向己剝的石墨片層間擴散,形成納米復合結構創造了條件。
  11. For intra - domain routing background, see any undergraduate text ' s routing chapter. you should be familiar with distance - vector and link - state routing

    關于內部網域路由導論,請參考所有大學課程中有關路由的章節。你因該會對距向量路由選擇及路狀態路由有所了
  12. It consists of two part, the one is hardware : integrating the system of the arc welding robot ' s hardwares and its working principles, separating and extracting the original system ' s control signals, designing the control system openly and its working principles, constructing the structure and principle of the motion card based on dsp, designing the telecontroling teaching box or control panel of touching screen based on usb interface, applying for some software and hardware measures on control system ' s anti - jamming ; the other is software : putting forward the three levels opening software structure model of arc welding, comparing the opening of software structure model between osaca and ours, putting forward the solutions of the pri and communication among the threads of software system ' s modules, using the dll ' s techniques to solve software ' s module design and putting forward the frame codes, bringing forward the path planning software ' s realization by cp + ptp mode, discussing the real time of windows2000 operating system and advancing its solution

    具體包括,硬體部分:弧焊機器人硬體整體系統集成及其工作原理,原系統控制信號的分和提取,控制系統的開放式設計及組成原理,基於dsp的運動控制卡結構和原理,基於usb介面的觸摸屏式遙控示教盒控制面板的設計,系統抗干擾的軟、硬體措施;軟體部分:提出了弧焊機器人的三層開放式軟體結構模型,軟體結構模型與osaca的模型進行開放性比較,給出軟體系統各模塊線程間優先級和通訊的決方案,使用動態接庫技術實現軟體模塊化設計並給出了框架代碼,給出了cp + ptp方式的軌跡規劃軟體實現過程, windows2000操作系統實時性問題的討論及決方案。
  13. It was found that in the simulated physiological solution, the hydrogen bindings between some amido groups in the mp - 11 molecules are decomposed and the mp - 11 dimers become monomers. it induces the increase in the contents of the a - helical and ( 3 - turn conformation, the decrease in the content of the random coil conformation of mp - 11 as well as the increase in the exposure extent of the heme group. therefore, the reversibility of the electrochemical reaction and the electrocatalytic activity of mp - 11 for h2o2 reduction increase comparing the situation in the aqueous solution

    發現在模擬生理條件下, mp - 11分子的多肽上一些酰氨基的氫鍵發生了,使部分雙聚的mp - 11分子變成單體分子, mp - 11分子二級結構中-螺旋和-轉角結構的含量增加,無規捲曲結構含量降低,導致了mp - 11分子中血紅素的暴露程度變大,因此mp - 11電化學反應的可逆性和對h _ 2o _ 2還原的電催化活性比在水溶液中有所增加。
  14. In this study, we examined class 1 and 2 integron in shigella sonnei and shigella flexneri isolates from hangzhou, china, to investigate their distribution and determine their gene cassette arrays and their location in genome. a atypical class 1 integron without 3 " conserved region was found to prevail among shigella flexneri isolates, and the excision models of it ' s gene cassette were charactered by inverse pcr. moreover the roles of gene cassettes in the atypical class 1 integron and class2 integron to confer resistance were discussed

    本研究對杭州地區近年分的福氏和宋內氏志賀菌株進行類和類整合子的檢測,了其分佈特徵;進一步通過克隆測序和southenblot ,確定其攜帶的基因盒組成特徵以及其在基因組中的位置;在研究中發現了一種缺少3 』保守區的非典型類整合子,通過反轉pcr了此整合子的切除基因盒的特徵;並對非典型類整合子和類整合子各自攜帶的aada賦予宿主菌黴素抗性的不同能力,進行了探討。
  15. But in the moderate electric field 150 kv / cm, there is a sharp change in the configuration and charge distribution of the exciton, i. e. the exciton is directly split into an electron polaron and a hole polaron. the polarization and dissociation happen at a same time, which differs from that in conjugated polymers. and in the strong electric field 350 kv / cm, appear structural phase transition of the chain and luminescence quenching

    同時得到兩個重要的臨界電場值: 1激子電場ec1 ( 150kv / cm ) ,在此電場下激子發生瞬間,成為電子型極化子和空穴型極化子; 2結構相變電場ec2 ( 350kv / cm ) ,在ec2下二聚化晶格開始被等距晶格取代, ptcl絡合物發生結構相變,並伴隨peierls能隙漸趨消失和發光猝滅的現象出現。
  16. After the analysis of distribution network, a dynamic distribution network discrete model ( ddndm ) was presented based on the theory of the bi - level dynamic distribution network. furthermore, ant colony algorithm ( ac arithmetic ), which is introduced in this dissertation because of the ability of resisting combination explosion to np - hard problem, now is applied in ddndm. then the ac arithmetic solve pattern, arithmetic steps and the instance result have been presented, and that the ac arithmetic applied in the ddndm to solve the np problem is appropriate

    本文通過對分銷網路分析,在已有的二級動態分銷網路模型研究基礎上,提出了動態分銷網路散模型,並且在基於meta圖的供應集成網路模型基礎上對模型進行了優化,最後採用對于np完全問題具有抵禦組合爆炸特性的螞蟻演算法求此模型,給出了螞蟻演算法求的模式、如何通過賦權meta圖構造和具體演算法步驟,還給出了實例結果,通過結果表明本文提出的基於螞蟻演算法決分銷網路優化中出現的np難題,能夠得到較好的效果。
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