面活性分子 的英文怎麼說

中文拼音 [miànhuóxìngfēnzi]
面活性分子 英文
surface active molecule
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 活 : Ⅰ動詞1 （生存; 有生命） live 2 [書面語]（救活） save （the life of a person）:活人無算 （of a goo...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 活性 : [化學] activity; active; activated活性肥料 active fertilizer; 活性酵母 active dry yeast; 活性粘土...
  1. A method to calculate quantitatively the adsorption volume or adsorption space of per mass of adsorbent derived from both the adsorbed molecule volume and the maximum adsorbance of a solute in an adsorption isotherm under a given experimential condition is presented firstly for a solid / liquid adsorption system of the solute in a dilute aqueous solution. this method is suitable for not only mono - layer adsorption, but also mani - layer adsorption and micelle adsorpion of surfactant constructed by hydrophile and lipophile groups. therefore, the surface concentration of the adsorbate, cs, deduced from the adsorption volume is possessed of the meaning of true concentration, and the value of the patition coefficient of the adsorbate between solid and liquid phass, p, attained by the cs and the c, solution concentration of the adsorbate, can be accurate. the foregoing a set of calculations are presented for the solid - liquid adsorption systems consisted of the wool fiber and separately dodecyltrimethyl - ammonium bromide ( dtab ) and hexadecyltrimethyl - ammonium bromide ( ctab ) in this paper. this provides a strong basis for adsorption thermodynamic investigation of adsorbate

    對稀溶液中溶質的固/液吸附體系，首次提出了根據吸附分子體積和實驗條件下吸附等溫線中的最大吸附量計算單位質量吸附劑的吸附體積或吸附空間的方法.此法適用於單層吸附，也適用於多層吸附和具有親水親油結構的表面活性劑分子的膠團吸附.由此，吸附質的表面相濃度cs具有真實濃度的含義，相應地，計算得到的溶質的固/液分配系數p就有了準確值.分別計算由溴代十二烷基三甲銨（ dtab ）和溴代十六烷基三甲銨（ ctab ）與羊毛纖維構成的液/固體系分配系數等，為溶質吸附的熱力學研究奠定了基礎
  2. The mechanical properties indicated that the improved exfoliation degree of mmts was essential for better properties of the nanocomposites, while the mechanical properties of interc alated nanocomposites were dependent on the structure of the organic modifiers 3

    有機蒙脫土層間有機物含量較高，有利於聚合物插層和mmt片層剝離分散。片層剝離分散程度大，有利於提高復合材料的力學性能；插層型復合材料的力學性能與表面活性劑分子結構有關。
  3. Through investigation of water clarifying mechanism of demulsifier during demulsifying period, using the theory of relationship between structure and performance of surfactant, combining with the composition character of crude oil, the molecular structure design and synthesis of demulsifier were conducted

    通過探討破乳劑在破乳過程中的清水機理，運用表面活性劑結構與性能關系理論，結合原油的組成特點，進行了破乳劑分子的結構設計與合成。
  4. The rate of the coordination reaction between divalent metal ions and murexide in a water - in - oil microemulsion was determined by spectrophotometric technique to study the transport of the metal ions entrapped in the organogel formed by cationic surfactant cetyltrimethylammonium bromide

    以微乳液中二價金屬離子與紫脲酸胺之間的配位反應為指示反應，採用分光光度技術，研究了金屬離子在由陽離子表面活性劑十六烷基三甲基溴化胺構建的微乳凝膠中的傳質問題。
  5. The anion surfactant nals was the most efficient in the process and was selected as collector by orthogonal method. the interfacial tension and cmc of nals ( cmc 6. 5 10 - 3m ) in the solution was measured by hanging ring test, the function relationship between interfacial tensions and nals concentration was : = - 0. 9523 in 2c - 24. 534 in c - 81. 411. the relation of interfacial adsorption equilibrium in the solution system was respectively tested and calculated with gibbs equation and dynamic method. the conclusion showed that ( 1 ) the experiment result of dynamic method with was highly in coordination with the value which from theoretical calculation. ( 2 ) the surfactant molecule was in arrangement of monomolecular layer at the gas - liquid interface

    用吊環法測定了十二烷基硫酸鈉水溶液不同濃度與其界面張力的關系，擬合得到的回歸方程為= - 0 . 9523ln ~ 2c - 24 . 534lnc - 81 . 411 ，同時還測得其臨界膠束濃度值（ cmc為6 . 5 10 ~ （ - 3 ） m ） ，運用吉布斯等溫方程和動態法分別計算和測定了該溶液系統的界面吸附平衡關系，結論表明： （ 1 ）動態法測定結果基本吻合吉布斯方程的理論計算； （ 2 ）表面活性劑分子在氣?液兩相界面是以單分子層形式定向有序排列的。
  6. Study of preparation of polymer surfactant of ester - salt of copolymaleic anhydride with nonyl phenyl polyoxyethylene ether

    新型高分子表面活性劑馬萊酸壬基酚聚氧乙烯酯鹽類的合成研究
  7. To the latter, the role of methyl oleate in influencing the partition of surfactant in oil phase and aqueous phase competes with its adsorption role at the interface

    而堿體系中，油酸甲醴影響表面活性劑在油水相分配從而影響界面張力；另一方面，油酸甲醴吸附在界面上頂替表面活性劑分子影響界面張力。
  8. Pvp polyethylene pyrrole alkane ketone whether one physiology have similar human plasma high polymer of albumen, the best one in the ion surface - active agent of right and wrong

    Pvp （聚乙烯吡咯烷酮）是一種生理學上類似人體血漿蛋白的高分子聚合物，是非離子表面活性劑中最好的一種。
  9. Composites of ultramicro iron - coated hollow glass bead were in - suit prepared using atpu as surface agent by decomposing carbonyl iron in hollow glass beads and dmf mixed solution

    用atpu作表面活性劑，在中空玻珠存在下「原位」熱分解五羰基鐵制備出中空玻珠超微鐵核殼復合粒子。
  10. The diameter of sno2 nanoparticles ranges from 20 to 60 nm. it was concluded that, with the use of the surfactant dbs, sno2 nanoparticles would more steady disperse in polyurushiol in nano scale. ft - ir and xps spectrum showed that there was some interacting between the phenol hydroxyl groups in urushiol mocular chains and sno2 nanoparticles

    （ 3 ）紅外分析和xps分析表明， sno _ 2納米粒子與聚合漆酚中羥基氧原子或dbs中氧原子之間存在著一定程度的配位趨向這，可能是納米sno _ 2在dbs為表面活性劑的漆酚或聚合漆酚中能穩定分散的原因之一。
  11. Firstly, it is necessary to determine the variation of ddmbac concentration during coagulant sedimentation. according to basic theory of statistical analysis, the analytical method of ddmbac, which was based on modification, optimization and perfection of spectrophotometric method using acid blue 1 #, was developed in this paper

    為確定混凝沉澱過程中陽離子表面活性劑ddmbac濃度的變化，本文從基本的數理統計理論出發，對陽離子表面活性劑檢測方法酸性藍分光光度法進行了改進、優化和完善，建立了適于本研究中測定ddmbac的分析方法。
  12. 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以及橄欖綠鏈黴菌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 。
  13. The relation of absorption of nano - metal sols and the addition of dispersants, as well as the rule of absorption of nano - metal sol added by dispersants concomitant to placing time were systematically investigated by means of uv - vis. the results show that, the suitable dispersant to nano - iron / ethanol sol is 0. 035 % polyoxyethylene ( 10 ) lauryl ether ( op - 10 ), but in the case of nano - tungsten / ethanol sol, 0. 13 % neotelex maybe is of more benefit to its disperse stability. the observation of tem shows the best evidences

    Uv - vis法理論分析結果表明，對于納米鐵溶膠，添加0 . 035的非離子型表面活性劑十二烷醇聚氧乙烯醚可以達到良好的分散穩定性；而對于納米鎢溶膠，最理想的分散劑則是0 . 13的陰離子表面活性劑十二烷基苯磺酸鈉，電鏡觀察結果完全證實了該推論，顯示5天後的納米金屬溶膠仍然保持良好的分散狀況。
  14. Monodispersed particles may be synthesized by thermal decomposing iron pentacarbonyl in liquid phase containing lauryl - phosphate mono - ester as the surfactant. with increasing dosage of the surfactant, the grain size of the particles decreases, as a result, the permittivity decreases and the permeability increases. the minimal permittivity and the maximal permeability occur at the diameter of about 39 nm

    以十二烷基磷酸酯為表面活性劑在液相中熱分解五羰基鐵制備了單分散的- fe納米粒子，發現隨表面活性劑用量增迦納米粒子粒徑減小，粒子介電常數下降，磁導率上升；粒子介電常數和磁導率在粒徑為39nm左右分別出現最小值和最大值。
  15. Non - ionic surface active agents - determination of sulfated ash - gravimetric method

    非離子表面活性劑硫酸化灰分的測定重量法
  16. Dendritic cells ( dc ) is the most powerful apc, which can markedly increase the antigen - presentation capacity by maximizing the pepitide - mhc complexes on the cell surface and upregulating the co - stimulatory ligands b7 - 1 and b7 - 2, adhesion moleculees such as il - 12 that promote full activation of lymphocytes. full activation of antigen - specific t cells requires two signals - one signal coming via the tcr and the other signal through engagment of co - stimulatary molecules. t cells receiving one signal via their tcr are turned off by mhc ( major histocompatibility complex ), via t cell cd28 binding to b7 on the dc induce tlymphokine and t cell proliferatiion

    T細胞介導的細胞免疫在控制腫瘤生長方面發揮著重要作用， t細胞在發揮抗瘤效應（分泌細胞因子和直接殺傷）之前必須先經過活化，體內專職抗原提呈細胞（ apc ）細胞並使其活化，樹突狀細胞（ dendriticcell ， dc ）為t細胞的激活提供雙重信號， t細胞藉助tcr識別由dcmhc分子遞交的抗原肽后，通過tcr - cd3復合體傳遞抗原特異性識別信號（第一信號） ，以cd28為主的t細胞表面輔佐分子識別dc表面b7分子，傳遞非特異性協同刺激信號（第二信號） ，在機體抗腫瘤免疫應答中處于核心地位。
  17. Composites of ep coating ultramicro iron were prepared using atpu & span60 as surface agent in dmf solvent by decomposing carbonyl iron and then vacuum distillation after adding epoxy resin ( e - 44 )

    用atpu span60作表面活性劑，在dmf溶劑中，熱分解五羰基鐵后，加入環氧樹脂（ e - 44 ）減壓蒸餾，制備了ep包裹超微鐵復合粒子。
  18. On one hand, after linking the fad of glucose oxidase ( god ), mwnt accelerated the electron transfer. on the other hand, met the surface of the electrode, as a nanowire, mwnt expanded electrode space. both of the situations could short the electron - transferring time and then increase the response current

    在這個過程中，一方面和酶分子的活性中心結合，可以加速酶分子到電子中間體的電子傳遞過程；另一方面和電極表面碰在一起，這根納米導線也能擴展電極空間，提高和電子中間體的接觸空間。
  19. 200 - 500 surface active agents - detergents - determination of cationic - active matter content - cationic - active matter of low molecular mass between 200 and 500

    表面活性劑.洗滌劑，陽離子活性物含量測定.第2部分:低分子團
  20. 200 - 500 surface active agents. detergents. determination of cationic - active matter content. part 2 : cationic - active matter of low molecular mass between 200 and 500

    表面活性劑.洗滌劑，陽離子活性物含量的測定.第2部分:低分子量
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