氮動力學 的英文怎麼說

中文拼音 [dàndòngxué]
氮動力學 英文
nitrogen dynamics
  • : 名詞[化學] nitrogen (7號元素, 符號n)
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
  1. Many researches indicated that nitric oxide ( no ) > vasoactive intestinal polypeptide ( vip ), calcitonin gene - related peptide ( cgrp ) ^ substance p are main neurotransmitters for penile erection

    所以近來的研究重點從陰莖血流轉向陰莖神經遞質研究。有研究表明,一氧化( nitricoxide
  2. In addition, the dynamic equation about ammonia fertilizer affected by interaction of water and temperature is gotten. 3. the phenomenon about water vaporization - induced ammonia volatilizing is verified, and it is studied quantitatively

    此外,通過回歸分析還建立了表徵施入土壤中尿素轉化為銨態型方程,其參數均與土壤水分、溫度有關,並得到這些參數的水熱耦合效應關系式。
  3. The results of the experimental tests show that nh4cl and k2hpo4, kh2po4 are the most available nutrents to our isolates when they are degrading oils. the most suitable experinment condition is : temperature being 30 c, initial ph being 7 - 8, the shaking rate of the culture flasks is 180 r / min, the concentration of nacl is 1 %. the biodegradation results have shown that our 6 isolates have the effective degradation capability to crude oil ; within 6 days the transforing rate of oil by each single strain is more than 60 %

    本研究分離出的6株菌,初步鑒定結果為: sy1為微桿菌屬、 sy2為諾卡氏菌屬、 sy3和sy5為假單胞菌屬、 sy4和sy6為芽孢桿菌屬;實驗結果表明, 6菌株的最佳源為氯化銨( nh _ 4cl ) ,最佳磷源為磷酸氫二鉀和磷酸二氫鉀的混合物,最適生長條件為:溫度為30 ,初始ph值為7 8 ,搖床轉速為180r min ,鹽( nacl )濃度為1 ;通過降解實驗得出6株菌對原油都有較強的降解能,單一菌株在5天後的原油降解率都高於60 , 6株菌對原油的生物降解反應符合一級反應特徵。
  4. 7 fernandez - rodriguez cm, prieto j, quiroga j, et al. enhanced urinary excretion of cgmp in liver cirrhosis, relationship to hemodynamic changes, neurohormonal activation, and urinary sodium excretion. dig dis sci 1997, 42 ( 7 ) : 1416 ? 1420

    6黃潁秋.促紅細胞生成素與一氧化合酶抑制劑對肝硬化大鼠高循環狀態的影響.中華醫雜志, 1998 . , 78 ( 2 ) : 139 ? 142
  5. The dynamics equations of soil water vaporizing and ammonia volatilizing hcluding the factors of water and temperature, and the dynamics - like equation of urea transforming into ammonium nitrogen in soil are founded in the paper, by taking the effect of interaction of water and temperature as subject, the dynamic change character of object studied as basis and using principle of chemical dynamic ; the empirio - equations of soil water retention curve including temperature and the empirio - equations including temperature between water potential of millet seedling leaves and soil water are founded in order to make the equation of relation between water potential and water content in soil suit the demand of temperature change much better

    本文以水熱耦合效應為主題,基於研究對象的態變化特徵,應用化原理,建立了含水、熱因子以及水熱耦合效應的土壤水分蒸發、肥料氨揮發方程,以及施入土壤中的尿素轉化為銨態型方程;為使水勢?含水量關系式更好適應變溫條件應用的要求,建立了含溫度因子直接表徵土壤持水曲線的經驗方程,以及含溫度因子的穀苗葉水勢與土壤含水量關系經驗方程。
  6. The influence of nano - al2o3 on the sintering and the properties of the si3n4 ceramics was researched in this paper. the samples with different amount of nano - al2o3 were obtained by using pressureless sintering at 1600, 1650, 1700 in the nitrogen atmosphere. the microstructure and the composition of the ceramics were determined by the means of x - ray, sem, micro - hardness meter etc. it is show that the sisty ceramics can be densified at 1650c to % percent of the theory density through the addition of nano - al2o3 ( the value could be 90 percent by other technique ). the crystalline growth of the cylindrical - si3n4 and the ratio of its longitude to its diameter are increased with the addition of nano - al2o3. a uniform microstructure and an fined crystal as well as more sialon phases can be obtained in the si3n4 ceramics through the addition of that

    實驗結果表明:在碳管爐中、氣保護下進行燒結,添加劑為納米al _ 2o _ 3粉末時,由於納米粉末的高活性、高燒結驅,在1650就可使si _ 3n _ 4完全地燒結,並使其緻密度可達理論密度的96以上(比其它工藝高6左右) ;同時,納米al _ 2o _ 3地加入大大促進了長柱狀? si _ 3n _ 4的生長和發育及柱狀晶長徑比的提高,使微觀結構均勻、細化,形成了更多性能優異的固體? sialon相,減少了不利於陶瓷材料性能的晶間玻璃相,凈化了晶界。
  7. The properties of cn thin films such as their morphology, component, crystal structure and the bonding structure and the relation between those properties and the gas - phase reaction parameters were discussed, showing that the deposition of p - c3n4 thin film is the compete result of various reaction processes in the dynamics balance conditions ; the process of cn films depo sition is diagnosed in situ through the optical emission spectra technique, the effects of experimental parameters on the concentration of the precursors and the gas - phase reactions in the plasma have been obtained ; the main reaction precursors for film deposition identified ; the relation between the characteristics of cn thin films and the reaction process in the plasma is analyzed. the cn thin films deposition under different substrate temperatures in high pressure pe - pld shows that the si atom of the substrate has participated the cn films growth process, based on this the growth mode of cn thin films on the si substrate is proposed. the further experiment of cn thin films deposition on si substrate scratched by diamond as well as covered with fe catalyzer has been attempted, which indicates that changing the dynamics conditions of the surface reaction can alter the growth characteristic of the cn thin films and can enhance obviously the films growth rate

    採用pld技術進行了碳化合物薄膜沉積,得到了含量為21at的cn薄膜;研究了襯底溫度和反應氣體壓強對薄膜結構特性的影響,給出了cn薄膜中n含量較小、 sp ~ 3鍵合結構成分較少和薄膜中僅含有局域cn晶體的原因;引入脈沖輝光放電等離子體增強pld的氣相反應,給出了提高薄膜晶態sp ~ 3鍵合結構成分和薄膜的含n量可行性途徑;應用pe - cvd技術以ch _ 4 + n _ 2為反應氣體並引入輔助氣體h _ 2 ,得到了含n量為56at的晶態cn薄膜;探討了cn薄膜形貌、成分、晶體結構、價鍵狀態等特性及其與氣體壓強和放電電流的關系,證明了- c _ 3n _ 4薄膜沉積為滿足平衡條件的各種反應過程的競爭結果;採用光發射譜技術對cn薄膜生長過程進行了實時診斷,得到了實驗參量對等離子體中活性粒子相對濃度和氣相反應過程的影響規律,給出了cn薄膜沉積的主要反應前驅物,揭示了cn薄膜特性和等離子體內反應過程之間的聯系;採用高氣壓pe - pld技術研究了不同襯底溫度條件下cn化合物薄膜的結構特性,揭示了si原子對薄膜生長過程的影響,給出了si基表面碳薄膜的生長模式;在金剛石研磨和催化劑fe處理的si襯底上進行cn薄膜沉積,證明了通過控制材料表面條件可以改變碳薄膜結構特性,並可顯著提高晶態碳材料的生長速率。
  8. Silicon nitride ( normally si3n4 ) has been widely used in such fields as micro - electronics and optoelectronics as a promising film material because of its excellent property. many researches have been made on silicon nitride, especially on preparation for it with all kinds of cvd ( chemical vapor deposition ). but the growth mechanism and kinetics of direct - nitridation in nitrogen are not investigated in detail, especially few work has been done on direct - nitridation of silicon wafer in nitrogen during heat treatment

    化硅( si _ 3n _ 4 )具有許多特殊的優越性能,是一種前景廣闊的薄膜材料,並已廣泛應用於微電子、光電子領域,人們對此做了大量的研究,但主要集中在用各種化氣相沉積的薄膜制備上,對直接化法的機理和研究較少,特別是矽片在氣保護的熱處理條件下的直接化行為研究更少,甚至對矽片在熱處理條件下能否與惰性的氣發生反應等問題依然存在爭論。
  9. The lipid and calcium content in serum, and the aortic wall, the hemorrheologicvariation and the aortic atherosclerotic lesion were investigated in rabbits fed with cholesterol and diltiazem

    譯:給家兔喂飼膽固醇和硫艸卓酮,觀察其血清和主脈壁脂質及鈣的含量,血流變化和主脈壁粥樣硬化病變的程度
  10. A dynamic model for dissolved inorganic nitrogen ( din ) and phosphate ( po4 - p ) cycles and budgets in jiaozhou bay was established according to the principles of d - n - p - z model. in the model, 6 state variables ( din, po4 - p, phytoplankton, zooplankton, organic detritus, and dissolved organic nutrients ) were included. logically this model was divided into three modules - nutrients input, nutrients cycle in seawater, and output of both dissolved substances ( e. g

    本文根據n ? p ? z ? d模型的基本原理,建立了膠州灣、磷營養鹽循環收支模型,主要包括營養鹽輸入,營養鹽生物、化遷移和轉化內循環,溶解態和顆粒態物質水輸出3個邏輯模塊,涉及溶解無機( din ) 、磷酸鹽( po _ 4 - p ) 、浮游植物、浮遊物、有機碎屑和溶解有機態營養鹽6個狀態變量。
  11. However, except nitrate, the nitrogen concentration including nitrite, ammonia, don, pn and tn in spring 1998 were higher than those in autumn 1997, with the average concentration of 4. 9714. 65, 0. 67 ?. 20, 0. 7210. 30, 9. 2516. 88, 7. 3014. 42 and 22. 9 ? 0. 2 mol / dm3 in autumn, and 4. 5812. 39, 0. 70 + 0. 14, 2. 2611. 05, 9. 8814. 92, 7. 8816. 21 and 25. 318. 94 mol / dm3 in spring, respectively. the n / p ratio in autumn 1997 was 13. 217. 54 in average which a little lower than redfield ratio, nevertheless in spring 1998 the value was as high as 25. 6113. 0, much hi gher than redfield ratio. there shows a clear seasonal variation of phosphorus structure in two seasons, but the nitrogen structure almost unchanged

    兩個季節海水中磷的結構變化明顯,秋季磷主要以pp ( 54 )為主,而春季長江口營養鹽、石油烴對海洋生態系統影響及研究主要以po4一p ( 51 % )為主;兩季節的結構基本一致,溶解都以don為主,分別為40 %和39 % :秋季no3一n比例較春季略高( 22 % ) ,而春季nh4一n比例較秋季略高( 9 % ) 。
  12. Samples are prepared at 1100 and 1200 for different time from 5 minutes to 4 hours to study direct - nitridation kinetics. the thickness of the silicon nitride films is measured by single - spot thickness system produced by filmetrics co. ltd. the direct - nitridation kinetics curve is attained and the maximum thickness of the silicon nitride film is about 50nm

    為研究矽片,在1100和1200的溫度下制備了從5分鐘到4小時的各個化時間的樣品,並採用了不同晶面取向的矽片和不同的矽片放置位置,用filmetrics公司生產的f20型膜厚測量儀測得各個樣品的厚度,得到了實際的曲線和化薄膜的最終膜厚約為50納米,氣曲線較好地符合了氣固反應類型的曲線。
  13. Different kinds of biochemical reaction approaches for the goal of detection and kinetics studies on microfluidic chips are reviewed, including enzymatic assay, immunoassay, enzyme - linked immunosorbent assay ( elisa ), polymerase chain reaction ( pcr ) and nitric oxide release reaction

    摘要綜述了近幾年來在微流控晶元上以檢測或研究為目的而進行的各種生物化反應技術,包括酶反應、免疫反應、酶聯免疫反應、 pcr反應和含氧化物釋放反應。
  14. The ntu " khpi " scientific schools are known beyond the boundaries of the country primarily thanks to such scientific chairs as metals physics, high technologies of metal working, electric drive, internal combustion engines, tank - building, ceramics and composites, synthesis of nitric acid, oil fuel, electric chemistry, space apparatus control systems, industrial and medical electronics, information equipment, control systems and so on

    哈爾科夫工業大享有較高的國際聲譽,主要是由於其在金屬物理研究,金屬處理,電,內燃機,坦克製造,制陶和復合材料,酸合成,燃油,電化,空間裝置控制系統等高新技術方面。
  15. In this paper, the condition of direction - nitridation, the kinetics and nitridation mechanism are discussed in experiment and theoretically

    本文研究了矽片在熱處理條件下的化條件和,並從理論上探討化機理,得到了很好的結果。
  16. Study on curing reaction of epoxy resin and phthalazinone curing agent

    含二雜萘酮環氧樹脂體系的固化反應研究
  17. The thermal decompostion kinetics of up / montmorillonite nanocomposites under nitrogen was studied. the reaction order and apparent activation energy of nanocomposites were obtained by freeman - carroll method. the results indicate the thermal stability of nanocomposites is higher than pure up ' s

    研究了氣氣氛下不飽和聚酯蒙脫土納米復合材料的熱分解,用freeman - carroll法確定了復合材料的反應級數n和表觀反應活化能e 。
  18. Nitric oxide, a key cardiovascular chemical produced by the body, increases blood flow that serves to deliver more nutrients and oxygen to the muscles, helping muscles to cope with increased physical activity and build when subjected to regular elevated labor

    一氧化是人體自身合成的一種重要血液化成分,可以通過改善血液的流性,進而向肌肉輸送更多的養分和氧,幫助肌肉適應更大的人體活量以及體消耗。
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