鏈穩定化 的英文怎麼說

中文拼音 [liànwěndìnghuà]
鏈穩定化 英文
chain stabilization
  • : 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
  • : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
  1. Newcastle disease virus ( ndv ) strain 695, a thermostable nature avirulent strain, were replicated in embryonated chicken eggsand its rna was extracted from allantoic fluid. referred to the reported sequence of f gene, a pair of primers were designed and synthesized. f gene of ndv b95 strain was amplified by rt - pcr, the pcr products were checked by agrose gel electrophoresis and purified by agrose gel fracion method

    利用從國外引進的新城疫熱性天然弱毒b _ ( 95 )株接種spf雞胚繁殖病毒,經處理后提取病毒的基因組rna ,參考國內外發表的ndv融合蛋白基因序列,設計一對特異性引物,經反轉錄聚合酶式反應( rt - pcr )擴增出約1700bp大小的特異性片段,將此片段回收純后,利用t - a克隆技術將其克隆到pgem - t - easy克隆載體中,再轉大腸桿菌jm109感受態細胞,轉后經分子量比較、 pcr鑒和酶切分析篩選陽性克隆。
  2. 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進行了脫糖基處理得到xynbb ,其分子量恢復到23kd ,證明xynba是糖基蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基的木聚糖酶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由於糖基作用熱性明顯高於未糖基的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離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現:以樺木木聚糖為底物時,酶解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,酶解產物主要為木二糖和木三糖,含量分別為81 . 78和11 . 55 。
  3. Second, it turns to analyze the outside environment of chongqing pepsi - tianfu in details by using many theories in turn such as pest, five competition power, production life cycles and value chain, and its target is not only to find opportunities in politics, economic, technology, and social culture and also to feel threaten which results from substitute, supplier, new comer, customer and competitor of our company. then, it begins to seek the strength and weakness of this company by analyzing resource of itself in order to seek main problem s during present business operating, specially focusing on marketing promotion, cost controlling, human resource management and enterprise culture. at the same time, it concludes that the main present questions are caused by some history factors, faulty present management rules, incomplete human resource system, different leader types and weak base of enterprise culture

    然後,就運用pest法、行業競爭五種力量及價值的戰略管理理論對公司的外部競爭環境進行詳細的分析,發現公司可能在政治、經濟、技術、社會文上面臨的機會以及行業中替代品、供應商、新進入者、顧客、競爭對手正帶來的威脅;接著,運用資源分析法找出公司內部的優勢和劣勢,特別是目前存在的主要問題及其產生的各種主要原因,其中問題集中表現在市場營銷、成本控制、人力資源管理、企業文四大方面,而產生原因則是公司的歷史、管理制度不夠完善、人才機制不健全、領導風格不相同、企業文較薄弱等因素;接著,就是將內、外環境的分析結果通過swot方法進行戰略匹配和選擇,得出三個戰略方案,即:發展戰略、密集型發展戰略和多元發展戰略。
  4. In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material

    本文首先根據散拋石壩損毀情況的現場調查資料,結合有關專家多年的整治經驗,總結出壩體的損毀原因及影響因素;對現有塊體性的研究成果進行回顧和總結,並針對散拋石壩的直接損毀現象,結合山區河流的水流、地形特點,利用塊體粒徑與起動流速的關系,提出塊體重量與起動流速高次方成正比的概念,流速50的增長可能導致塊體重量接近40倍的變;通過二維變坡水槽試驗,研究了壩體的主要影響因素,包括塊體重量、壩頂水深、斷面尺寸、塊體材料(塊石和卵石兩種) 、護底等,結果表明對于山區河流,試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體性效果甚微;最後,根據西部地區的自然、經濟、交通等條件,提出可以採用柔性混凝土鉸體等一類整體性較好的護面層作為散拋石壩的防沖毀措施,以期取得良好的工程效果。
  5. The twin foundations of cultural and religious link have helped build the stable edifice of islamic civilization in this country

    接的雙胞胎基礎幫助了修造伊斯蘭教的文明的大廈在這個國家。
  6. Meeting the demands of cross - organizations cooperation, supply chain management ( scm ) has become a focusing on cooperation, advanced, and innovational besinees management mode. this research focuses on coordination issues in operation process of established construcation supply chain ( csc ) by combining the reseach methodologies, such as theory analysis and case study, quantitive and qualitative, and hybriding multiple pricinples, such as operation research, game theory, and intelligent agent technology. considering the actual demands and characters of the construction industry, this research mainly includes five sections, i. e. csc coordination issues, formation mechanism of csc coordination, impacts of information sharing on csc operation, cooperative decisiona making mechanism of csc and csc supporting platform

    ( 2 )運用交易成本經濟學和企業能力理論,從減少交易成本和提高企業能力兩個方面闡述建設供應協調(合作)形成的內在動力,論述了供應(管理)是建設管理應當選擇的最佳規制結構;分析了建設供應運作中的「囚徒困境」 ,用聲譽模型( kmrw )和演博弈理論中的模仿著動態( replicatordynamic )模型分析了建設供應各參與方的合作與競爭行為,分析得出建設供應各方採用合作戰略是保證建設供應系統向合作方向演及其性的基礎;給出了建設供應合作戰略制與實施的主要內容和要求。
  7. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向,本論文重點做了以下幾個方面的工作,目的在於提高dtc系統的綜合性能: ( 1 )提出一種新型的速度磁觀測器,新型的速度磁觀測器採用自適應閉環磁觀測器代替傳統的積分器從而提高磁觀測的精度,並且根據popov超性理論推導出轉速的新型自適應收斂律; ( 2 )改善系統的低速運行性能,主要從提高低速時對子磁的估計精度入手,提出了一種提高子磁觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正子電阻參數; ( 3 )採用數字信號處理器dsp實現系統全數字硬體控制,結合ti公司生產的tms320lf2407晶元,設計了直接轉矩控制系統的實驗裝置; ( 4 )提出了基於sercos總線網路分散式的直接轉矩控制系統, sercos ( serialrealtimecommunicationsystem )是目前最適合同步和協調控制的串列實時通信協議; ( 5 )基本勾勒出整個控制系統的硬體和軟體設計基本框架,詳細描述一些實驗中的具體的細節問題。
  8. The stability, rheology, chain structure and consecutive medium model in magnetorheological fluids are analyzed. according to the contribution of shear stress and normal pressure in polishing zone, the quantificational machining model of mrp is presented. as an example of plane workpiece, the influences of machining parameters on removal rate and surface roughness in mrp are studied

    5 、磁流變拋光( mrf )是超光滑光學表面的一種新型加工技術,本文從mrf的磁、力學性質出發,研究了磁流液的性、流變效應、結構和連續介質模型;根據拋光區內剪應力、正壓力的分佈特徵,提出了mrf的量加工模型;然後以平面工件的磁流變拋光為例,揭示了工藝參數對材料去除率和表面粗糙度的影響規律。
  9. With the increase of the end - group ' s volume, the melting points and clearing points followed the same trend while the stability of liquid crystalline states became worse

    隨著末端基脂肪體積的增大,熔點和清亮點具有同樣的變趨勢,液晶態的性變差。
  10. Phenyl group introducing to cholesteryl ester molecules can enhance the phase transition temperatures of the liquid crystals and their stability. an increase in the chain length for cholesteryl dicarboxylate samples reduced stability of liquid crystal phases. while coattail - like structures on the ester group of the molecules have an adverse effect to form cholesteryl liquid crystal phase

    學結構對液晶性的影響表現為:分子中引入苯環剛性結構可以提高液晶的相變溫度和性;脂族二羧酸膽甾醇酯中脂肪的長度增加會降低液晶的性;而末端含有燕尾結構則對液晶態的形成產生不利影響。
  11. Comparing with other countries, the effect of government promotion of the wheat market in china are still far backward, especially its low level of the producer supporting, establishment of market system, and international trade policies, which have seriously ristricted the enhancement of chinese wheat competitiveness. finally, the policy implications for china to improve wheat international competitiveness are put forward as the following : 1 ) to enhance the construction of centralized region of wheat, which will help to extend the application area of excellent breeds, so as to overcome the problem of quality instability. additionally, the construction of centralized region will improve the organized level of producers and increase industries values

    最後,在對上述問題進行國際比較研究的基礎上,我們提出提高中國小麥國際競爭力的對策建議如下:加強集中連片的優勢小麥產區建設,有利於優良品種大面積推廣種植和小麥統種統收,從而克服中國小麥質量不的難題,優勢小麥帶建設也有利於提高生產者的組織程度和產業增值:加強政府對小麥生產經營的宏觀調控,在wto框架內加人小麥生產者支持水平、完善生產者支持結構、加快小麥市場體系建設等。
  12. The experiment result shows that conversion efficiency in ccm is improved by 2 percent compared with that in dcm, although the on - resistance of winding in ccm is more than that in dcm. the analysis of open - loop transfer function in both dcm and ccm shows that pull - push hfl inverter at ccm

    微分補償網路的推挽高頻逆變電路在輸出從空載變到額阻性負載變的過程中,逆變電路工作模式從dcm變到ccm模式,實驗結果表明電路在這兩種模式下都能輸出的正弦電壓,且具有較高的態精度。
  13. Simulations for these two conditions prove validity of theoretical analysis. on the basis of this scheme, a new speed adjustment strategy about vector control of doubly fed motor based on rotor current vector fixing is given. it introduces the closed - loop of stator excitation current to the system, which increases two adjustment channels : speed and excitation adjustment

    經理論分析可知,該方案中,由於轉子電流與磁無法實現完全解耦,故僅在亞同步工況下有效,在超同步時則會因為調速系統不能自動校正轉子磁幅值變引起的橫向電流而使系統失去控制,無法達到狀態。
  14. The enzyme retained full activity after being treated at room temperature for 1 hour at ph between 4. 0 and 11. 5. the enzyme can be incubated at 50 for 4h with only less 50 percent loss of activity and is stable in the frozen state. when streptomyces griseus atcc14811 was cultured in 10. 3 % sucrose yeme liquid medium, production of extracellular cholesterol oxidase increased for 5 days before decrease

    利用硫酸銨鹽析及deae -纖維素離子交換柱層析提取純灰色黴菌atcc14811發酵上清液中的膽固醇氧酶,理性質研究表明酶作用晟適ph為8 . 0 ,最適溫度為45 , ph范圍在ph4 . 0 - 11 . 5之間,在50條件下保溫4h ,仍保留54酶活力。
  15. ( 3 ) in connection with the agv system of 101 automatic logistics system runs in a low efficiency. according to the path programming principle, using over - all planning method, this project will study and plan the agv moving path, this project will study, improve the agv dispatching management method and discuss the sub - materials management questions thoroughly to make the agv system run well. ( 4 ) in connection with the as / rs system runs in a low efficiency and wastes end - product questions, we will think of adding frequency principles to the research of stacking model to make the stacker run in a high efficiency. through studying, analyzing and comparing methods, this make the machine carry materials safely, steadily and reduce wastage

    ( 4 )針對101自動物流系統中as / rs系統運行效率低、成品損耗嚴重的問題,首先在庫存模式的研究中考慮新增頻次原則,以此來提高堆垛機的運行效率,而對輸送機系統則通過研究、分析,運用比較的方法,並進行更換條或各種改進以達到輸送機物流平衡、、降低損耗;又對as / rsecs和倉庫管理系統( ims )各項功能的完善以及改進,以實現操作便捷,達到節省時間,提高工作效率的目的。
  16. It is the especial congregate structure of polymer matrix that is necessary for the forming of three - dimensional interpenetrate network between the polymer and copper. the mma unites lead to the advantage of improving fiexibity of the film, destroying the formal arrangement of macromolecule chain in polymer and decreasing the degree of crystallization. the ita unites help the solvolyzed copper ion transfer in the film and benefite the forming and establishment of the networks of polymer matrix

    聚合物基體特殊的聚集態結構是互穿立體網路形成的必要條件,皿m的加入有利於破壞丙烯睹大分子的規整性,使結晶度降低,提高聚合物的柔韌性,含親水基團的單體( ita 、 as )存在有利於降低離子遷移的界面能,提供溶劑銅離子遷移的途徑以及聚合物基體網路結構的形成和
  17. To optimize the deployment of the current air defense radar system in war zone and improve the stability and efficiency of it during the wartime, a kind of applied research method of the " radar netted system " presented and its system architecture, composition of radar station group and information circuit etc. in detail, are discussed

    摘要針對優現役戰區防空雷達系統的部署結構,提高其戰時性、提升其整體作戰效能的問題,提出了一種「雷達組網系統」實用研發對策,並對其具體的系統體系結構、雷達群站系統構成、信息路等問題進行了探討和研究。
  18. In the total society of china, the media ' s political mouthpiece and the power structure ' s unification adapted substantially to each other. media became an important link and part in the chain of political powers in the highly administrative system, being rigidly controlled by the uni - direction unification. social power construction, the arrangements of media system, and the controlling system altogether established the relatively balanced and stable system

    本文採用歷史梳理與個案研究相結合的方法,認為中國傳媒調控機制的嬗變經歷了三個時期: 1 、改革開放前,在中國總體性社會中,傳媒的組織喉舌屬性與權力結構的單極充分適應,在高度行政的制度安排中,傳媒成為政治權力中的一個重要環節和部門,受制於一種單向度一元的剛性控制,社會權力結構、傳媒制度安排以及調控機制構成了相對平衡的系統。
  19. As the customers require commodities of individuation rather than of popularity, the management should be upgraded accordingly. and the organizational structure of the enterprise changes from the traditional pattern of hierarchies directed by purely cost and efficiency to the flat pattern directed by many target include pursue innovation, then to the pattern of network and so on, as the enterprise supplies products or services aiming at the individual rather than at the mass generally ; meanwhile, it is required that the corporate supply chain should be changed into the relationship of alliance rather than that of purely market trading

    隨著顧客需要從大眾向個性轉變時,要求企業管理的質量水平相應的提升,企業提供產品或服務的流程形式從大量生產向單件生產轉變,企業的組織結構隨之從單純成本、效率目標導向的傳統層級型演變到追求創新等多目標的扁平型再發展到網路組織形式等,同時要求供應從純粹的市場交易轉為相對的聯盟式的關系,並由此引起企業管理形式的變
  20. Stability analysis and stabilization strategies for linear supply chains

    線性供應性分析及策略研究
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