carbon concentration 中文意思是什麼

carbon concentration 解釋
碳的濃度
  • 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。
  • concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
  1. Afpga expressed in dh5a was repressed by fast - utilized carbon source of high concentration, while slow - utilized carbon source such as sucrose, starch and dextrin enhanced enzyme production

    玉米漿顯著地促進afpga在菌株dh5 psmlfpga的表達，卻抑制afpga在菌株dh5 pkkfpga的表達。
  2. The interaction between artemisinin and hemin was investigated by electrochemical methods. artemisinin was irreversibly reduced at - 1. 08v via a two - electron transfer at the glassy carbon electrode. in the presence of concentration of hemin as low as 4. 010

    青蒿素在玻璃碳電極上于- 1 . 08v處能發生一個2電子轉移的不可逆還原。即使在低至4 . 010
  3. If we can find a way to artificially enhance the adsorption of activated carbon, its benefits on economy and environment will be considerable. it is the aim of this work to investigate electrosorption of chloroform in water on granular activated carbon. the potentials on working electrode are controlled by potentiostat and the concentration of chloroform is measured by headspace gas chromatography

    實驗用恆電位儀作控制電源，調節工作電極電位（相對于參比電極電位）來控制加在活性炭上的電場，用頂空進樣法測定水中氯仿的剩餘濃度，參照方法與依據都是國家標準方法或國外先進方法。
  4. Effect of carbon source concentration on mechanical properties of hfcvd diamond thin film coated tools

    碳源濃度對金剛石薄膜塗層刀具性能的影響
  5. With the software of simulating low - pressure vacuum carburizing process and computer control system, carburizing process parameters are controlled accurately. the minimum error of carburizing layer depth, the optimal distribution of carbon concentration in carburizing layer and the minimum distortion are insured

    均勻布置鼠籠狀加熱元件和多組滲碳氣氛噴嘴，並對滲碳參數進行精確控制，可保證零件最小的滲層深度誤差最佳的滲層碳濃度分佈。
  6. 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
  7. 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 。
  8. Soil co2 concentration is origin from live shoot, live root. soil microbial and carbon dioxide in the earth atmosphere

    土壤co _ 2主要來源於植被根的呼吸、微生物活動及大氣co _ 2擴散輸入。
  9. The co2 concentration in karst soil is greater than that in the earth atmosphere. its absorption and emission are affecting carbon dioxide in the earth atmosphere

    土壤co _ 2濃度為大氣的幾十倍，它的吸收與釋放影響著大氣co _ 2濃度。
  10. The extensive use of fossil fuels oil, coal, gas in our daily lives produces huge quantities of carbon dioxide, increasing its concentration in the earths atmosphere and artificially enhancing the earths natural greenhouse effect

    日常生活大量使用石油煤和天然氣等化石燃料，產生大量二氧化碳，增加地球大氣層的二氧化碳濃度，各種人為因素加強地球的天然溫室效應。
  11. The process by which the surface carbon concentration of a ferrous alloy is increased by diffusion from the surrounding environment

    從周圍環境中向鐵基合金表面擴散碳，從而使其表面碳濃度提高的工藝過程。
  12. So it is chiefly that soil co2 concentration and its influencing factors should be studied in ordered to learn the mechanism of epikarst ecosystem and global carbon cycle. karst dynamics laboratory, ministry of land and resources, has been studied the mechanism of seven typical epikarst ecosystem and global changes through igcp 299 ( geology, climate, hydrology and karst formation, 1990 - 1994 ) and igcp 379 ( karst processes and the carbon cycle, 1995 - 1999 ) to igcp 448 ( world correlation of karst ecosystem, 2000 - 2004 ), while observation and analysis and research of epikarst ecosystem in mt. jinfo have just been beginning. the thesis analyzes that based - on observational point of green pond and deep dell in the west slope of jinfo mountain, co2 concentration and regularity of epikarst ecosystem contrasting woodland with uncovered land have been studied through the observation of temperature and humidity and co2 concentration

    國土資源部巖溶動力學開放研究實驗室以igcp229 、 igcp379和igcp448項目為依託，開展了我國7個典型的表層帶巖溶生態系統運行規律及其全球變化影響研究，而其中金佛山的觀測、分析與研究則才剛剛起步，本文以金佛山西坡摘公碧潭幽谷為觀測點，主要通過coz濃度、溫度和濕度的觀測，開展林地表層帶巖溶生態系統與裸地表層帶巖溶生態系統coz濃度特徵及其變化規律的對比研究，這對進一步深入研究巖溶生態系統運行機制和全球碳循環以及開展全球巖溶生態對比有著重要意義。
  13. The control of rhyzopertha dominica coleoptera : bostrichidae and tribolium confusum jacquelin du val coleoptera : tenebrionidae with high concentration carbon dioxide controlled atmospheres

    2氣調防治谷蠹及雜擬谷盜的研究
  14. Implementing ccs at coal - consuming plants is imperative if the carbon dioxide concentration in the atmosphere is to be kept at an acceptable level

    若要將大氣中的二氧化碳濃度控制在可接受的程度，在燃煤發電廠實施ccs是刻不容緩的。
  15. Stationary source emissions. determination of the mass concentration of total gaseous organic carbon at low concentrations in flue gases. continuous flame ionisation detector method

    穩定源輻射.煙道低濃度氣體氣化有機碳濃縮總量的測定.連續火焰離子檢測器法
  16. Abstract : a new simulating method is established for the calcul ation of the hardness profile of high - carbon - concentration deep - carburization, on the basis of analyzing this process and taking into account the influence o f carbide solution and dissolution, carbon - concentration and temperature on the diffusion behavior, and the influence of the environment factor on carbon trans fer through the gas - solid interface

    文摘:在對高濃度深層滲碳的特點進行分析的基礎上，考慮到碳化物的析出與溶解、溫度及碳濃度對擴散行為的影響，氣氛環境對相界面碳傳遞過程的影響，淬火烈度對滲碳層冷卻效果的影響，提出了一種新的模擬高濃度深層滲碳滲層硬度分佈的方法。
  17. Hrtem studies indicate that the si1 - xcx alloy has a high carbon concentration and possesses an ordered superlattice structure

    電子衍射和hrtem表明該材料具有傳統硅碳材料所不具備的長程有序和超點陣結構。
  18. Test method for carbon concentration of semi - insulating monocrystal gallium arsenide by measurement infrared absorption method

    半絕緣砷化鎵單晶中碳濃度的紅外吸收測試方法
  19. The volume expansion played a major role in determining its magnetic properties. complicated magnetic phase transitions induced by external magnetic field were found in carbonization of lafe _ ( 11. 4 ) al _ ( 1. 6 ) compound with low carbon concentration. and the temperature of phase transition depends on magnetic field strongly

    同時發現，碳含量較低時， lafe _ （ 11 . 4 ） al _ （ 1 . 6 ）碳化物在磁場誘導下呈現出有趣的復雜磁相變，相變溫度強烈依賴于外加磁場。
  20. The mo element is likely to play a crucial role in the growth process of the si1 - xcx alloy, since it can both reduce the energy required for breaking up c clusters and contribute to surface modification, which are of great benefit to enhance the carbon concentration and induce an ordered structure

    金屬mo的存在可以提高c原子在生長表面附近的溶解度和擴散速度；同時mo引起的表面重構類似一個生長低維結構的模板，誘導si原子和c原子向各自能量最穩定的位置擇向移動，形成最終的有序結構。
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