carbon activity 中文意思是什麼

carbon activity 解釋
碳素活度
  • carbon : n. 1. 【化學】碳。2. 【電學】碳精棒[片、粉]；碳精電極。3. （一張）復寫紙。4. 復寫的副本。
  • activity : n. 1. 活動；活躍；動作；活動力；能動性。2. 活性；放射性。3. 機能，功能。4. 〈美國〉機構。5. 〈pl. 〉 活動范圍。
  1. The length of alkyl, carbon chain about betaine type amphoteric surfactant affects its surface activity and other properties

    摘要甜菜堿表面活性劑的烷基碳鏈的長度對其表面活性及其它性質有不同程度的影響。
  2. In general, the activity of the halide component of the initiator increases with the number of chlorine or bromine atoms joined to a single carbon atom.

    一般說來，引發劑的鹵化物組份的活性，是隨連在同一碳原子上的氯和溴原子的數目的增多而增長。
  3. In this thesis, in order to reducing the amount of the pt catalyst, improving the electrocatalytic activity of the pt catalysts and utilization ratio of pt, the electrochemical codeposition method by cyclic voltammetry ( cv ) was used to prepare a series pt / moox / glassy carbon ( gc ) composite electrodes with high dispersibility. the composite electrode, pt / moox / gc, was characterized to study its composition and its electro chemical behavior by cv. using the xrd and sem techniques, the size and the dispersion degree of the catalyst particles were studied in presence or absence of moox in the catalyst

    為了降低主催化劑pt的用量、提高pt的活性和利用率，本論文利用循環伏安法共沉積制備高分散的pt moo _ x催化劑顆粒，利用循環伏安電化學表徵、 xrd和sem技術研究了引入moo _ x后的催化劑即pt moo _ x顆粒的粒子大小、分散狀態；利用icp - aes定量分析pt moo _ x催化劑顆粒的組成含量；並藉助于電化學方法分別評價了pt moo _ x gc電極催化劑的對甲醇的電催化活性和穩定性、氧還原電催化活性。
  4. Substitution of the number 8 carbon and the number 9 nitrogen also destroys activity as a cytokinin.

    取代第8位碳和第9位氮，也破壞作為細胞激動素的活性。
  5. A novel photohormone indole 3 - acetic acid sensor, plant tissue - ferrocene modified carbon paste electrode ( pfmce ), has been developed. the features of the electrode were investigated by cyclic voltammetry and the basic conditions needed for the optimal activity of iaa oxidase were also studied

    提出了一種以綠豆芽葉片組織?二茂鐵修飾的碳糊電極作為植物生長激素-吲哚乙酸傳感器的研製方法，探討了影響電極性能的因素，初步研究了iaa氧化酶處于最優活性的基本條件。
  6. This experiment passing to grope for the carbon source constitutes of the culture medium and using t. reesei rut c - 30 induced the expression of # - mannanase ( # - 1, 4 - mannan mannohydrolase ec 3. 2. 1. 78 ). in this experiment i put the constant carbon source ( lactose and locust bean gum ) in the foundation culture medium ( mandels nourishment liquid ) of t. reesei rut c - 30, then proceeded the variable carbon source ( dragon spruce fiber, com rush pith fiber, wheat straw fiber, wheat straw xylan, corn rush pith xylan, dragon spruce mannan ) to single factor, double factor, three factor, four factor and five factor orthogonal experiment. 1 determined the activity of p - mannanase using locost bean gum as substract by the 3, 5 - dinitosalicylic acid method, and observed the growing situation of the gernic at the end i selected the directions for the inducement expression of the # ? mannanase from trichoderma reesei rut - c30 that contained the dragon spruce fiber, wheat straw xylan, dragon spruce mannan

    在里氏木霉rutc - 30的基礎培養基（ mandels營養液）中加入固定碳源乳糖和槐豆膠，然後將可變碳源（雲杉纖維、玉米芯纖維、麥桿纖維、麥桿木聚糖、玉米芯木聚糖、雲杉甘露聚糖）進行單因子、雙因子、三因子、四因子、五因子的里氏木霉rutc - 30正交培養實驗，並以槐豆膠為底物用3 ， 5二硝基水楊酸法測定培養液中?甘露聚糖酶的活力。從而確定了酶活最高且菌體生長良好的含雲杉纖維、麥桿木聚糖和雲杉甘露聚糖的誘導培養基為最佳培養基，用該培養基培養的里氏木霉（ t . reesei ） rutc - 30使其轉錄的-甘露聚糖酶（ - 1 ， 4 - mannanmannohydrolaseec3 . 2 . 1 . 78 ） mrna量能夠滿足rt - pcr的要求。
  7. In other words, replacement of the number 8 carbon by nitrogen in the purine ring does not eliminate activity.

    換句話說，嘌呤環上第8位碳被氮所取代並不喪失活性。
  8. 4. engineering dhqase ( arod ) - deficient e. coli mutant with a second copy of the arob gene gene targeting technique was used to disrupt the arod gene in e. coli chromosome. the mutant 31bk was engineered, in which homologous recombination of the arobkanr gene cassette into the arod locus ( arod : : arobkanr ) of the e. coli strain atcc31884 genome utilized the helper plasmid pkd46 with red system. the host cell 31bk lacked catalytic activity of dhqase ( arod ) and had a second copy of the arob gene, so it improved carbon flow into the quinic acid biosynthesis direction

    構建宿主菌基因精確定位突變株31bk （ arod : : arobkan ~ r ）為了改變代謝途徑脫氫奎尼酸（ dhq ）分支點上的代謝流量，使之充分流向目的產物奎尼酸合成方向，利用基因打靶技術構建了31884宿主菌arod基因精確定位插入突變體，使dhq脫水酶（ dhqase ）失活，阻斷了碳代謝流流向芳香氨基酸生成的方向，同時用同源重組的方法將arob基因定位整合入染色體上，解除了限速酶對碳代謝流通過共同途徑到達dhq的阻遏影響，並減輕代謝負擔。
  9. Standard test method for carbon tetrachloride activity of activated carbon

    活性碳的四氯化碳活性的標準試驗方法
  10. Located on the central ax of datong economic and technology development zone in north of shanxi province, dcc has its major activity focused on the production of high quality active carbon by using the adequate agglomeration technology with the so called press - room installation imported form the united states

    大同卡爾本炭素有限公司地處山西省北部，在大同經濟技術開發區的中軸線上，得益於其從美國直接進口的模壓設施，公司依靠配套的造粒技術，主要從事優質活性炭的生產。
  11. Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "

    W12菌株對環境因子的適應性研究：無氮培養條件下，測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響，結果表明，在15 - 40下均能生長並表達固氮酶活性，其最適生長及固氮的溫度為25 - 35 ；能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮，當培養基中同時存在蔗糖和蘋果酸時，細菌生長和固氮活性最強；在偏酸和偏堿的條件下（ ph4 . 5 - 8 . 5 ）均能保持較強的生長勢和較高的固氮酶活性，並能通過調節自身代謝平衡並適應環境的酸、堿性變化，使培養液趨于中性：能耐受較高的滲透壓，培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大，當naci濃度升至2時，菌株的生長勢及固氮酶活性才有所下降：低濃度的鉸對其固氮酶活性影響不大，在0
  12. The xylanase activity of the mutant kept stable after 10 generations. after orthogonal designing experiment, the optimum fermentation conditions of a. niger j 506 were obtained, which is as followed : concentration of the major carbon resource 4 %, ratio between bran and corncob 5 : 5, concentration of glucose 0. 1 %, concentration of ammonium oxalate as supplemental nitrogen resource 2. 0 %, the initial ph of liquid medium 5. 0, 100ml / 250ml flask

    經過正交試驗設計，得出突變株a . nigerj506產木聚糖酶最佳的工藝條件為：主碳源濃度4 、麩皮與玉米芯的比例為5 ： 5 、輔加碳源葡萄糖的濃度是0 . 1 、輔加氮源草酸銨的濃度是2 . 0 ，培養基初始ph為5 . 0 ， 250ml三角瓶的裝液量為100ml 。
  13. It was found that b - 6 isolated by the method of distinct zone of clearing in cellulose - congo red agar medium combined with measuring the enzyme activity of liquid culture filtrates had comparatively higher cellulase activity. by measuring activity of cellulase of strains growing in medium with different carbon sources and of washed mycelium induced by different carbon sources in certain time, it found that the formation of cellulase was regulated by the nature of the carbon source used for b - 6 and as3. 3711

    真菌纖維素酶是一種誘導酶，碳源同時也是主要的誘導物來源，為了研究碳源對真菌纖維素酶合成的誘導機理，本文利用液體生長培養和洗滌菌絲誘導培養法研究了不同碳源對兩菌株的誘導特性，並用電泳分析法研究了不同碳源的誘導酶譜。
  14. Analysis of activity of p - galactosidase showed that cryld - lacz expressed differently in the same host because of different carbon sources and differenly in different hosts utlizing same carbon sources, suggesting that metabolism pathway of carbon source in hd - 133 - 5 was special

    首次報道了cry1d - lacz在同一菌株中的表達因碳源不同而異，在碳源相同的條件下不同菌株的表達也不相同，而衍生菌株hd - 133 - 5的代謝途徑非常特殊。
  15. Carbon and oxygen isotope data show that the carbonatite layer in fozichong ledge is different from the normal marine sedimentary carbonatite, infering that its formation has relation with hot - water sedimentary activity

    碳、氧同位素顯示，佛子沖礦田賦礦層位中的碳酸鹽巖地層與正常的海相沉積碳酸鹽巖不同，其成因與熱水沉積活動有關。
  16. Based on the nickel electrodeposition process, the nickel electrodeposition mechanism, the electrochemical nucleation of nickel on vitreous carbon, the redox process of black nickel formed on anode, the nitrogen evolution on anode and electrocatalytic activity for nitrogen evolution of ti based iro2 anodes were investigated systematically

    本文在前期工藝研究的基礎上著重對氨絡合物體系電積金屬鎳的反應機理、鎳在玻璃碳上的電化學成核機理、陽極黑鎳的形成機理、陽極析氮過程及ti基iro _ 2塗層陽極對析氮的電催化活性進行了系統研究。
  17. Carbon nanotubes ( cnt ) are new promising materials of catalyst supports for pemfcs. previous studies reveal that cnts supported catalysts show enhanced catalytic activity towards oxygen reduction reaction ( orr ) and methanol oxidation

    碳納米管（ cnt ）作為載體的電催化劑在氧還原和甲醇氧化等pemfc電極反應方面表現出良好的催化活性。
  18. The main characters of the thermal fluid activity are recognized as follow : many types and stages of veins are widely developed ; vitrinite reflectivity of different areas varies apparently with the depth ; there was a high temperature field during the formation of the thermal fluid, meanwhile, the volcaniclastic rocks were modificated by the thermal fluid activity, for example, sericitization of plagioclase, chloritization of volcanic detritus in andesitic detris tuff ; in the tufaceous mud, the thermal fluid activity accelerates " maturating " of the organic carbon by heating ; and the trace elements show an anomaly in the wall rocks

    同時，受熱流體活動的影響，熱流體對火山碎屑巖具有一定改造作用，如在安山質巖屑凝灰巖中，斜長石絹雲母化、火山巖巖屑綠泥石化明顯；在凝灰質泥巖中，熱流體對圍巖中有機碳具有明顯的「催熟」加熱作用，微量元素則出現異常現象。
  19. Abstract : based on the previous results of dephosphorization of stainless steel and new developments of eaf steelmaking process, dephosphorization technology of stainless steel is discussed. a weak oxidizing dephosphorization technology is proposed in which c ( carbon ) is added into slag to control furnace atmosphere and slag activity

    文摘:基於不銹鋼脫磷的有關研究結果及電弧爐煉鋼工藝的最新進展，對不銹鋼脫磷工藝進行了分析討論，提出了向渣中加碳控制氣氛及爐渣反應性能，從而實現弱氧化脫磷的工藝方案。
  20. Based on the previous results of dephosphorization of stainless steel and new developments of eaf steelmaking process, dephosphorization technology of stainless steel is discussed. a weak oxidizing dephosphorization technology is proposed in which c ( carbon ) is added into slag to control furnace atmosphere and slag activity

    基於不銹鋼脫磷的有關研究結果及電弧爐煉鋼工藝的最新進展，對不銹鋼脫磷工藝進行了分析討論，提出了向渣中加碳控制氣氛及爐渣反應性能，從而實現弱氧化脫磷的工藝方案。
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