活性介質 的英文怎麼說

中文拼音 [huóxìngjièzhí]
活性介質 英文
active medium
  • 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 ...
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 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. The total rna was isolated from pokeweed ( phytolacca americana ) leaves using the method of guanidine isothiocyante and used as template to amplify the total length and deleted mutant pokeweed antiviral protein ( pap ) gene by rt - pcr and then the pap gene was cloned into pgem - t vector. the sequencing results showed that pap gene had 99. 9 % identity comparing with the pap gene nucleotide sequence reported by lin et al ( 1991 ). the iptg - inducible expression vector containing the pap gene was constructed and transferred into e. coli bl21 ( de3 ) - plyss

    將缺失型pap基因克隆到植物表達載體pbi121中，通過液氮冷凍法將重組質粒轉入農桿菌lba4404細胞中，然後採用葉盤法，在該農桿菌的介導下將pap基因導入普通煙草中，經過卡那黴素抗性篩選，最後獲得了轉pap基因的工程煙草植株，摩擦接種煙草花葉病毒（ tmv ） ，與非轉基因煙草相比，能夠推遲癥狀表現達2月之久，說明pap基因能夠在其它植物體內產生有活性的高抗病毒的蛋白質。
  2. Study on the aggregation of thiazole orange in aqueous solution with surfactants by absorption and fluorescence spectroscopy

    噻唑橙在表面活性劑介質中聚合狀態的光譜研究
  3. The polymeric micro spheres are prepared by different methods. the micro spheres can be used in the cosmetics, especially in the applications of anti - ultraviolet, bio - chemicals carrier and make - up fields

    摘要介紹了用於化妝品領域的聚合物微球的制備方法，著重闡述了聚合物微球在防曬、生物活性物質的輸送和彩妝等領域的應用。
  4. In the first part of this paper, mn ( iii ) / mn ( ii ) couple in h2so4 was firstly applied as the positive couple to this system, i. e. redox flow cell. its chemical, electrochemical properties, redox kinetics and related parameters were characterized and discussed by rotating disc electrode ( rde ), cyclic voltammetry ( cv ), a. c. impedance ( a. c. imp ), chronoamperometry, tafel curve, and galvanostatic charge / discharge techniques. conclusions have been drawn as follows : 1. the electrochemical kinetics of mn ( iii ) / mn ( ii ) redox couple in 6. 3m h2so4 solution were studied by means of rotating disc electrode ( rde ) technique on platinum electrode

    本文第一部分首次成功地將酸性介質中的mn （ iii ） / mn （ ii ）電對應用於氧化還原液流電池這一新型儲能裝置的正極活性材料，通過旋轉圓盤（ rde ） 、循環伏安（ cv ） 、交流阻抗（ a . c . imp ） 、恆電位階躍、 tafel實驗以及mn （ iii ） / mn （ ii ）單電極的恆流充放電實驗，我們得出以下結論： 1 .在旋轉圓盤電極上，不同轉速范圍，不同的極化過電位， mn （ ） / mn （ ）體系氧化還原電極過程的控制步驟不同，電荷傳遞、擴散傳質可分別或聯合成為控制步驟。
  5. Directing to the storage character of qitaihe coal sources, using floatation method of nj dense medium centrifugal force not only meets the heeds of quality and amount of producing super activating carbon raw coal and has good separation result. the equipment investment is less and tailmine recovery is easy. it meets the needs of circumstance protection

    針對七臺河煤炭資源的賦存特性，應用nj重介離心力選煤方法，不僅滿足了制備優質活性炭原料煤的質量和數量要求，而且分選效果好，設備投資少，尾礦物回收容易，滿足了環保要求。
  6. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  7. Scas water quality. evaluation of the aerobic biodegradability of organic compounds in an aqueous medium. semi - continuous activated sludge method

    水質.含水介質中有機物化合物需氧生物降解性的評價.半連續活化污泥法
  8. This course introduced solubility equilibria, oxidation - reduction equilibria, fundamentals of process kinetics, fundamentals of surface and colloidal chemistry, coagulation in water treatment, water softening and neutralization, and ac adsorption

    本課程將簡介溶解度平衡、氧化還原平衡、動力學基本原理、表面和膠體化學基本原理、水處理之混凝、水質軟化與中和以及活性碳吸附處理等。
  9. The ground penetrating radar ( gpr ) is an effective tool to detect buried targets based on the dielectric discontinuity, which possesses a lot of virtue, such as rapid and continuous surveying, simple and convenient operation, high resolution, nondestructive detection etc. this dissertation studied shallow depth signal processing technology of gpr and focused on the clutter reduction and targets imaging

    探地雷達是一種利用地下介質的不連續性來探測地下目標的有效工具，具有探測速度快、探測過程連續、操作方便靈活、解析度高、不損壞被探測目標等特點。本文研究的是淺地層探地雷達的信號處理，主要包括雜波抑制和目標成像。
  10. Conclusion : the conclusion is drawn that the anti - inflammatory agent andeugenol, on the basis of the fact that individuals may vary in pain reaction and sensitivity, can prevent inflammation of pulpitis, hence relieve and even eliminate the acute pain after the blockade of the pulp devitalizer

    結論：不同個體對疼痛的敏感性耐受性等不同，消炎痛、丁香油酚能阻斷牙髓炎癥介質，從而減輕或消除乳牙牙髓炎患者封失活劑后產生的劇痛。
  11. The experimental results indicated that the colour - changing ranges got narrow, and the titration accuracy was increased when an appropriate surfactant micellar solution was chosen as a titration medium

    實驗結果表明，表面活性劑存在時，酸堿指示劑的離解平衡及其變色范圍將發生改變，選擇適當的膠束溶液作為滴定介質，可以擴大酸堿指示劑的應用范圍，同時也可以提高滴定的準確度。
  12. The dispersity and stability of the graphite aqueous suspensions was investigated with centrifugation, the violet visible spectrophotometer, the laser particle size analyzer and scanning electron microscopy ( sem ). the following aspects of the production technique were carefully studied : 1. the effects of surfactants, poly ( vinyl alcohol ) ( pva ), poly ( vinyl pyrrolidone ) ( pvp ), sodium alginate ( sa - na ) and poly ( sodium acrylate ) ( pa - na ) on the suspension stability of graphite were investigated

    本研究的主要內容有以下三個方面: 1 、研究了陰離子表面活性劑、非離子表面活性劑、聚乙烯醇（ pva ） 、聚乙烯基吡咯烷酮（ pvp ） 、海藻酸鈉（ sa - na ） 、聚丙烯酸鈉（ pa - na ）對石墨在水中分散性和穩定性的影響; 2 、研究了分散方法、分散介質、 ph值及羧甲基纖維素鈉（ cmc ）含量對石墨在水中分散性和穩定性的影響; 3 、研究了聚乙烯醇（ pva ） 、聚乙烯基吡咯烷酮（ pvp ） 、海藻酸鈉（ sa - na ） 、聚丙烯酸鈉（ pa - na ）四種助分散劑與羧甲基纖維素鈉（ cmc ）復配對石墨在水中分散性和穩定性的影響。
  13. Ir - ta - ti metal oxide coated titanium anodes of variable composition were prepared by thermal decomposition. their micro morphorogies and electrochemical properties were characterized by scanning electron microscope, open circuit potential, cyclic voltammetry, consumption rate measurements and accelerated life test. the sem results indicated that all coatings were of a porous and cracked - mud microstructure influenced greatly by the composition of coatings. the electrochemical measurements showed that the ir - ta - ti ternary oxide - coated anodes exhibited excellent electrochemical activity and electrochemical stability in both acidic media and seawater which were affected by the composition and microstructure of the coatings. owing to good corrosion resistance and low consumption rate in seawater, metal oxde coated anodes belong to insoluble material, and can be potentially applid in impressed current cathodic protection systems as an anode

    採用熱分解方法在鈦基體上制備銥鉭鈦金屬氧化物陽極，用掃描電鏡對陽極塗層顯微形貌進行分析，通過強化電解壽命試驗、開路電位測試、消耗率試驗及循環伏安曲線研究了金屬氧化物陽極的電化學性能. sem分析結果表明銥鉭鈦金屬氧化物陽極塗層呈現多孔多裂紋形貌結構.隨陽極塗層組成不同，塗層顯微形貌表現出很大差異，這種差異直接影響陽極電化學性能.電化學性能試驗結果表明銥鉭鈦金屬氧化物陽極在酸性介質和海水中具有良好的電化學穩定性和電化學活性.此外，銥鉭鈦金屬氧化物陽極在海水中的消耗率很低，屬于不溶性的陽極材料，作為外加電流陰極保護用輔助陽極具有廣泛的應用前景
  14. This dissertation analyses technical requirements and the circulation mechanism of electric bicycle batteries, introduces the processing and related data of the development of the electric bicycle batteries. the test results show that the batteries can meet the requirements by using the highly purified lead - tin alloy, the active mass containing conductive material and the green plate curing a thigh temperature

    分析了電動自行車用電池的技術要求和循環機理，介紹了研製電動自行車用電池的過程，結果表明，使用高錫合金、活性物質中添加導電劑、生極板採用高溫固化工藝，電池性能達到了電動自行車用電池的技術要求。
  15. The catena products design for stsrting closing controling of diversified strong corrosive medium, configuration form is float through form, connect form is flange, valves crust adoptcarbon - steel pad fluorine plastic inside, valve - ball is made of metal embed parts wrap fluorine plastic outside with integrative of valve - staff, have trait of commendably rotproof and airproof closing and starting neatly fleetly, and that exterior handsome intensity high durable

    本系列產品是為各種強腐蝕性介質的啟閉控制而設計，結構形式為浮動直通式，連接形式為法蘭，閥外殼採用碳鋼內襯氟塑料，閥球為與閥桿一體式金屬嵌件外包氟塑料工藝製造，具有耐腐密封性好啟閉靈活快速的特點且外型美觀強度高經久耐用。
  16. Histamine is a medium of inflammation, and yet is an important neurotransmitter or neuromodulatory in central nerve system

    摘要組胺是一種炎癥介質和生物活性物質，更是中樞神經系統中的一種重要的神經遞質或神經調質。
  17. It has been well known that vascular endothelial cells ( vec ) are not only a mechanical and biological barrier of blood vessels, but also an endocrine organ, which maintain vascular normal tension and reactivities througth synthesis and release vasoactive substances such as nitric oxide ( no )

    研究發現，血管內皮細胞（ vascularendothelialcells ， vec ）能合成多種血管活性物質，是維持血管正常張力狀態和血管反應性的關鍵因素。其中vec釋放的一氧化氮（ nitricoxide ， no ）是人們發現的機體第一種氣體信使分子，具有明顯的血管活性、介導了血管內皮依賴性舒張反應。
  18. In addition, in the later of 80 ' s, the results obtained in weston and suzuki ' s laboratories and other laboratories showed that a new substance, christened edhf, could be released by ach or other vasoactive substances such as substance p. and the edhf could cause hyperpolarization of the vascular smooth muscle cells in an endothelium - dependent manner

    除edrf外， 80年代末weston和suzuki等發現ach等血管活性物質還可使血管內皮釋放一種可使smc膜電位超極化的因子（ edhf ） 。 edhf介導的血管舒張不受血紅蛋白和亞甲藍的影響，說明其作用機制與no無關。
  19. This paper reviewed the physiologically active substance in soy sauce and their ten different nutritional activities, such as, antioxidation, anti - cancer, lowering blood pressure and cholesterol

    摘要介紹了醬油中的主要生理活性物質以及它們在抗氧化、抗腫瘤、降低血壓、降低膽固醇等10個方面的營養保健作用。
  20. The recent progresses of the marine mollusc from the isolation, purification, structure characterization to synthesis of portion lamellarins and analogous alkaloids have been reviewed together with a brief introduction of their biological activity

    摘要綜述了海洋軟體動物活性物質片螺素及其類生物堿的提取、分離、結構確定以及合成路線的研究進展，並簡要介紹了該類物質的生物活性。
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