環中的氮 的英文怎麼說

中文拼音 [huánzhōngdedàn]
環中的氮 英文
nuclear nitrogen
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 氮 : 名詞[化學] nitrogen （7號元素, 符號n）
  1. The characterization of " click chemistry " ( the 1, 3 - dipolar cycloaddition combined with the synthetic design of triazoles and tetrazoles ) is reviewed, and some recent examples of various bioconjugates synthesis are introduced based on the " click chemistry "

    摘要介紹了利用1 ， 3 -偶極環加成反應合成氮雜三唑和氮雜四唑的設計方法和反應特點，以及氮雜唑類化合物的合成在生物綴合物研究中的應用。
  2. In this paper, a multi - area diagnostic & predictive model are proposed for combustion process in gasoline engines. models are composed of thermodynamic model, turbulence flams propagation model & nitrogen oxides ( nox ) formation model

    本文建立了汽油機燃燒過程的多區診斷及預測模型，其中包括氮氧化物生成模型和廢氣再循環降低氮氧化物生成的優化模型。
  3. Anaerobic ammonium oxidation ( anammox ) is a newly discovered process in nitrogen cycle in aquatic systems, and it plays a significant role in the conversion of nitrogen

    厭氧氨氧化過程是水生生態系統氮循環中的氮轉化新途徑，並在自然界氮素的轉化過程起著重要的作用。
  4. They can induce the immunocytes to secret numbers of immune - functional molecules, which mediate the stimulation of the whole immune system. there is difference that whether chitin and its derivatives alone can induce macrophages to produce nitric oxide ( no ) and tumor necrosis factor ( tnf ). the data gained from giuseppe balsamo et al

    但對於它們在免疫系統中某一特定環節的作用仍存在分歧，比如殼聚糖、殼寡糖單獨作用於單核巨噬細胞能否誘導其分泌一氧化氮（ no ） 、腫瘤壞死因子（ tnf ）等細胞因子。
  5. 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
  6. Endogenous no may inhibit ethylene biosynthesizing and control levels of endogenous cyclic nucleotide lead to delay maturation and senescence, so it can be used in extending the periods of the storage and marketing life of fruits, vegetables and flowers

    植物內源一氧化氮可以通過抑制乙烯的生物合成和調控環化核苷酸在植物組織中的水平，來延緩植物組織的成熟和衰老，延長果蔬等組織的貨架期。
  7. The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro - algae, soil ph value, soil organic matter soil available phosphorus and soil nitrogen. and then, the author put fertile soil, which included micro - algae, proportionally into sterile samples and cultivated them respectively under illumination condition ( micro - algae can live and reproduce ) and dark condition ( micro - algae will die in some time ). the above indices were measured in 0, 30, 60 and 90days respectively, the analyse of the interrelation between the change of micro - algae ' s number and the changes of soil ph value, soil organic matter, soil available phosphorus and soil nitrogen indicated : ( l ) soil micro - algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro - algae. under dark condition, the micro - algae ' s number declined gradually and went to zero in the end, while under illumination condition, on the 90th day, the micro - algae ' s number of per gramme was 6 - 7 times more than that of the beginning

    本文首先對肥沃土壤與經高溫焚燒后的貧瘠土壤中的微藻數量、土壤ph值、有機質含量、有效磷含量和全氮量進行比較研究，然後將包含微藻的綠化苗圃地肥土按不同比例接種進入貧瘠土樣中，分別在光照條件和黑暗條件下進行培養，在0天、 30天、 60天和90天分別檢測以上指標，比較有光條件和無光條件下，即有藻條件和無藻條件下貧瘠土樣所發生的變化，並分別對微藻數量的變化與土壤ph值、有機質含量、有效磷含量和全氮量的變化之間做相關性分析，以評估肥沃土壤中的微藻接種進入貧瘠土壤后的生長情況以及對貧瘠土壤的改良作用。研究結果表明： （ 1 ）土壤微藻對環境有較強的適應能力，且光照對其分佈起了決定性的作用。
  8. At the same time, especially in air two peaks turned little and became a continuous process at low heating rate ( 5 c / min ). the residue was 15 % in air compared to 3 % in n2, because pdms turned into sio2 of solid state in air, but ds of gas state in na

    發現在氮氣氣氛中的殘留物重為3 ，而在空氣下為15 ，這是因為聚硅氧烷在氮氣中分解成環三硅氧烷揮發了，而在空氣中形sio _ 2 。
  9. Zhejiang lead product technic co., ltd hereinafter referred as lead is invested and established by twelve shareholders including zhejiang inspection and quarantine technic center etc. it specializes in the testing of safety, sanitation, environment - friendliness, and quality items on foodstuffs, textile products, mechanical appliances, electrical appliances, chemicals and minerals etc. and it also provides services such as accreditation, quality assurance, manufacturing control technology and other consultation. lead lies in the center of zhejiang provincehangzhou, which enjoys the most rapid economic growth and is also the main production area of export foodstuffs, textile products, mechanical and electrical products

    食品紡織品機械電器化工礦產等產品涉及安全衛生環保等項目的實驗室檢測，包括蔬菜水果茶葉肉禽蛋罐頭食品水產品乳製品蜂產品中農藥殘留獸藥殘留添加劑重金屬及微量元素等檢測服裝面料皮革製品玩具中偶氮染料重金屬甲醛六價鉻以及耐洗磨擦色牢度成分等理化指標的檢測家電電動工具燈具低壓電器的安全性能等的測試。
  10. Abstract many people have noticed the research of the ammonian compounds that exist in water all the tune since the environmental water quality is going to overnutrition. in the procedure of the environmental monitoring, the determination of the ammonian compounds especially the concentration of ammonia in the drinking water, surface water n food, workshop and clinic is very important

    =隨著環境水質趨于富營養化，測定水體中的氨氮研究一直為人們所重視，在環境監測過程中，氨氮含量的測定是一個非常重要的數據；在工業和環境控制的領域中，對氨氮的監測，特別是對于飲用水、地表水、食物、工廠車間及臨床分析中氨含量的測定顯得尤其重要。
  11. In this case, circulating fluidized bed boiler has become the first new technology of high efficiency and low pollution. this paper simply introduce the clean combustion of circulating fluidized bed boiler and explore the sulfur capture, nitrogen capture, dust capture, slag excluding and using by connecting with the practically case of bt - 75 / 4. 2 - m circulating fluidized bed boiler in yth group

    本文對循環流化床鍋爐的潔凈燃燒在理論上做了簡要的論述，並結合雲天化股份公司的bt - 75 4 . 2 - m型循環流化床鍋爐的實際運行情況，對循環流化床鍋爐燃燒過程中的脫硫、脫氮，煙氣的除塵、灰渣的排放和利用等情況進行了探討。
  12. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的自然資源和農業生產情況，研究了典型坡地降雨徑流中的氮、磷污染物的輸出規律，利用annagnps模型估算流域農業非點源污染物輸入負荷，並在千島湖內設點采樣，對水質理化指標和浮游植物群落進行系統的研究，得出以下結論： 1989 2001年間的水環境常規監測資料統計分析表明，有毒物質和重金屬濃度長期在監測下限內， no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃度均符合類標準，但湖泊水庫特定項目tn和tp濃度分別為超類和類，呈嚴重超標狀況，湖區主要污染因子是將導致富營養化的物質tn和tp 。
  13. Nitrous oxide ( n2o ), a naturally occurring greenhouse gas, was one of the trace gases of nitrogen cycle. its lifetime was about 120 years in the troposphere. it has caused considerable concern since n2o not only contributed to the destruction of stratospheric ozone, but also its greenhouse effect strength was about 200 times higher than carbon dioxide ( co2 )

    溫室效應氣體n _ 2o是氮素循環中的痕量氣體之一，其溫室效應強度是co _ 2的200倍左右，它在大氣中的停留時間長達120年，而且，其消耗或轉化是以破壞o _ 3為代價的。
  14. Purifying water quality : the first will be through cell amine and ammonia nitrate into substance, then later nitrate into ammonia volatile substances, so as to achieve degradation of ammonia and some toxic and harmful substances, three - dimensional improvement of water quality, water color, improve transparency and efficiency of the effect of rapid detoxification, and the establishment of the ecological balance of water for aquaculture environment

    凈化水質：首先通過菌體的活動將胺及氨類物質轉化成硝酸鹽，爾后再將硝酸鹽轉化成揮發性物質氨，從而達到降解水中氨氮及一些有毒有害物質，立體改善水質、水色、提高透明度，並具有高效快速解毒的功效，建立養殖水環境的生態平衡。
  15. Abstract : this paper has deseribed the principles of preparation and technological process about nitrogen - based sintering atmosphere by ammonium cracked and burnt. the chemical effect in sintering furnace is discussed. the effects of it on the carbon content of the iron base structure materials were studied. the superior feature and technical & economic value in saving energy, in cutting down the consumption of raw materials, in waking use of natural resources, in environmental protection, in safety, etc., have been brought to light

    文摘:敘述了氨分解燃燒氮基燒結氣氛的制備原理與流程設計；探討了它在燒結爐中的化學效應；研究了它對鐵基結構材料碳含量與性能的影響；揭示了它用於粉末冶金鐵基結構件燒結時，在節能、降耗、資源利用、環保、安全等方面的優勢特徵與技術經濟價值。
  16. Abstract : according to the daga of crops yield and soil fertility changes of long term application of fertilizer and nutrients recycling obtained from ecological stations scatrtered in four typical areas under chinese academy of sciences and state minisetry of science and technology, the circulation ratios of organic carbon, phosphorus and nitrogen in the process of feeding - composting in were put forward in the agricultural system of black soi area, the ratios were about 0. 3, 0. 61 and 0. 49, respectively

    文摘:根據中國科學院和國家科技部分佈於四大類型地區的生態站進行的長期施肥及養分循環再利用的作物產量、土壤肥力質量變化研究數據，提出了黑土區農業系統投料中有機碳和磷、氮在飼養? ?堆腐過程中的循環率。
  17. The application of microwave irradiation in the synthesis of six - member heterocyclic compounds are reviewed through two sections : 1 ) oxygen - bearing six - member heterocyclic compounds ; 2 ) nitrogen - bearing six - member heterocyclic compounds

    摘要對微波技術在合成六元雜環化合物中的應用作了概述，主要論及： 1 ）含氧六元雜環化合物； 2 ）含氮六元雜環化合物。
  18. No was shown to work by elevating the tissue levels of another signaling molecule known as cyclic gmp

    進一步的研究顯示，一氧化氮是通過提升生物組織中的另一種訊號分子環鳥?磷酸的含量而產生作用。
  19. The cyclic gmp system represents the principal signal transduction mechanism by which no elicits many of its physiological effects in the mammalian species

    一氧化氮影響著哺乳類動物中的眾多生理作用，而環鳥?磷酸系統便擔當這些過程中的主要訊號轉導機制。
  20. Abstract : mainly reviewed distribution of organic nitrogen, early diagenesis ( such as counteract - eutrophication, nitrification / denitrification et al. ), the controlling factors of nitrogen cycling ; and the relationship between nitrogen and ecological system in sediments in recent years, which may contribute to research the nitrogen marine biogeochemical process

    文摘:主要闡述海洋沉積物中氮的存在形式與分佈、氮的早期成巖和去營養化作用、硝化和反硝化作用以及氮與生物特定種群的關系等，探討了影響海洋沉積物中的氮循環的主要因素，分析了海洋沉積物中的氮與生態系的關系，以期對研究氮的海洋生物地球化學過程有所幫助
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