氮素轉化 的英文怎麼說
中文拼音 [dànsùzhuǎnhuà]
氮素轉化
英文
nitrogen transformation-
Ammonifiers in suzhou creek can not use inorganic nitrogen and carbamide as nitrogen source ; additional carbon source and garbage lixivium have little influence on ammonifiers growth ; high content of salt and low temperature restrain ammonifiers growth ; alkalescent condition has little influence on ammonifiers, but acidic condition restrain ammonifiers growth ; the biomass of ammonifiers are not necessary correlated with the function of ammonifiers, adding glucose with 1g / l content into the water sample obviously promote the growth and function of ammonifiers. physiological groups of bacteria play significant role in the translation and
蘇州河的氨化菌無法利用無機氮和尿素作為氮源;在營養條件充足時添加額外c源和富含有機物的垃圾浸出液對氨化菌的生長基本無影響;高鹽度和低溫抑制氨化菌生長;堿性條件對氨化菌的生長影響不大,酸性條件對氨化菌生長具有抑制作用;氨化菌生物量的消長與轉氨活性之間不存在必然聯系, 1g / l的葡萄糖對蘇州河水樣中氨化菌的數量和轉氨功能具有明顯的促進作用。Based on the analyses on mechanical properties, microstructure and fracture of - the microalloyed steels socrv with various heat treatment technique, it can be affirmed that various fractures arttribute to various mechanism, we can draw conclusion that the strength and toughness of microalloyed steels 50crv will be increase simultaneously by optimal heat treatment technique. to illustrate the mechanism of the strength and toughness of microalloyed steels socrv, we designed the comparative experiment and observed the microstructure of the sample which occurred at different quench and tempering temperature and different tempering time. the last experiment results were determined by the four factors : fined microalloyed elements grains, the decompound of martensite, martensite transformation of remnant austenite and the second phase precipitation
為解釋微合金化50crv鋼強韌化機理,本文通過對不同淬火溫度,回火溫度,回火時間下的力學性能指標的對比及顯微分析,認為微合金元素的細化晶粒,馬氏體的回火分解,殘余奧氏體的轉變,第二相的沉澱析出共同決定了微合金鋼的強韌化情況,特別是由於微合金元素的存在,其細化晶粒及其碳氮化物的沉澱析出,導致鋼的良好的強韌性,並且如果工藝滿足第二相的沉澱析出強化大於回火馬氏體分解引起的軟化效應,會在硬度曲線中產生明顯的二次硬化現象。The negative photoconductivity effect was found in the dimixing phthalocyanine composites. the experiment results indicated that the negative photoconductivity effects were closely related with the partial charge transfer from the center metals to phthalocyanine rings, and the separation efficiency of photocarriers was a key factor to the photoconductivity
結果表明,共混復合后,其光電導性能表現出負效應,並發現酞菁中心金屬與其相連的氮原子之間的部分電荷轉移是引起復合體系光電導性能變化的根本原因,同時復合體系中的電子空穴對的分離效率是影響光電性能的一個重要因素。This paper aimed at present status that most researches assembled in chemical products, adopted different determine methods, represented the transformation characteristic of nitrogen among water and soil of the sulphureous urea, confirmed the nutrient release speed, found out the optimum determine method in agricultural production application
針對目前對緩釋肥料釋放特性的研究集中在化工製作領域這一現狀,採用不同的測定方法,闡明含硫尿素中的養分氮在水及土壤中的轉化特點,確定養分的釋放速率,以求找出適合農業生產應用的方法。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氮的動力學型方程,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。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。In the condition of the experiment, the effect of the long effect urea no. 4 to the wheat is better than millet as for the transformation and utilization condition of nitrogen in urea
表明,拔節期前是禾本科作物控釋氮素的關鍵時期;在本試驗條件下,就尿素氮的利用轉化狀況而言,小麥施用長效尿素四號優于穀子。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,基於研究對象的動態變化特徵,應用化學動力學原理,建立了含水、熱因子以及水熱耦合效應的土壤水分蒸發、肥料氨揮發動力學方程,以及施入土壤中的尿素轉化為銨態氮的動力學型方程;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。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。Inoculating the three protozoa reduced soil microbial biomass c. but corn straw decomposition was not decreased, even increased when inoculating colpoda cucullus. the protozoa, in particular, colpoda cucullus also had some effects on n and p transformation
向土壤接種原生動物,雖然減少了土壤微生物生物量,但卻促進了玉米秸稈分解,還對土壤有效磷含量、氮素轉化產生顯著的影響,其中colpodacucullus效果最明顯。( 4 ) soil water flow was simulated by macro model and soil nitrate transport was simulated by coupmodel. part of soil layer ' s simulated results fitted well compared with the measured values. the water percolation amount simulated with considering macro - pore was 60
( 4 )用macro模型模擬水過程, coupmodel模型模擬氮素轉化過程,部分土層水、氮的模擬結果和實測值較吻合,考慮大孔隙時模擬得到土壤水的滲漏量較不考慮時高60 . 50 ,土壤硝酸鹽淋洗量占施肥量30 . 87 ,比不考慮時高。Studying on the mechanism of nitrogen transport and transformation under the conditions of fertilization and irrigation with sewage effluent is very important for utilization of sewage effluent and fertilizer and pollution control. based on laboratory and field experiment and numerical simulation, nitrogen transport and transformation has been investigated in this dissertation
污水灌溉和施肥條件下,氮素在土壤與作物系統中遷移轉化規律的研究,對于合理利用污水資源和合理施肥,最大限度提高水分和養分的利用率,減少硝態氮淋洗風險,具有十分重要的意義。In field study, the expenment on nitrogen transport and transformation in soils with different irrigation ( with both ground water and sewage effluent ) and fertilization levels has been conducted. with considenng the n - uptake, nitrification and demtrification processes, a model for describing no2 - - n transport and transformation in unsaturated soil has been applied. results show that, the n03 + - n accumulating in soil is contributed more by fertilization but lees by irrigation with sewage effluent, and the model can be used to simulate no3 - - n transport in soils
在室外進行了不同清污水灌水量與施肥條件下氮素遷移轉化試驗,同時進行了考慮根系吸收,硝化和反硝化的田間非飽和no _ 3 ~ - ? n遷移轉化模型的數值模擬,研究結果表明與施肥相比,污水灌溉對土壤中no _ 3 ~ - ? n累積的貢獻較小,所建立模型可用於模擬no _ 3 ~ - ? n在土壤中的遷移。Effect of lignosulfonates on controlling of urea nitrogen transformation and nitrate accumulation in vegetable
木質素磺酸鹽對尿素氮轉化與蔬菜硝酸鹽積累的影響Usually, vitamin c converts nitrite into nitric oxide, thus inhibiting the formation of nitrosamines
通常情況下,維生素c將亞硝酸鹽轉變為一氧化氮,從而抑制了亞硝胺的形成。How the api works the api converts the levels of air pollutants such as nitrogen dioxide, sulphur dioxide, ozone, carbon monoxide and respirable suspended particulates measured at each air quality monitoring station into one easy to understand number ranging from 0 to 500
空氣污染指數是將環境保護署每個空氣質素監測站所錄得的空氣污染物含量,如二氧化氮、二氧化硫、臭氧、一氧化碳及可吸入懸浮粒子,轉化為一個簡單易明的數字,其數值由0至500不等。It has superimposition effect with urea, nitrogen, and can promote phosphor, potassium, and other nutrition in soil to rice, which will increase utilization rate of fertilizers
該藥劑與尿素產生疊加效應並可把原來土壤存積下來的氮、磷、鉀提供轉化給水稻吸收生長,提高肥料利用率。This paper systemically summarizes the chemical transformation of nitrogen and phosphorus, the process of their transportation in water - soil interface and the influencing factors
系統地綜述了氮磷在水土界面的化學轉化、遷移過程及其影響因素等方面的研究進展。Air quality assessment 6. 1 the assessment has considered regional air quality impacts resulting from the changes in road traffic emissions after implementation of the crosslinks project. the assessment has predicted levels of nitrogen dioxide, ozone and respirable suspended particulates and compared these with existing pollution levels and air quality objectives
1本研究已評估在新跨界道路工程計劃展開后,道路交通廢氣排放的轉變對區域空氣質素所帶來的影響,並預測二氧化氮、臭氧和可吸入懸浮粒子的濃度,然後與現時空氣污染水平和空氣質素指標作一比較。分享友人