precipitation process 中文意思是什麼

precipitation process 解釋
沉澱過程降水過程
  • precipitation : n. 1. 猛然摔下，落下。2. 猛沖；急躁，輕率，魯莽。3. 【化學】沉澱（作用）；降雨（量）；（雨、雪等的）降落。
  • process : n 1 進行，經過；過程，歷程；作用。 2 處置，方法，步驟；加工處理，工藝程序，工序；製作法。3 【攝影...
  1. The activation energies of crystal growth were calculated to be 15. 9kj mol " 1 and 148. 7kj mol " 1 respectively. cerous nitrate as originating material, ammonium hydrogen carbonate as precipitator, nanocrystalline cec > 2 powders were prepared by precipitation process. during the experiment, reacting solution was heated by microwave energy

    採用碳酸氫銨作為沉澱劑，聚乙二醇等表面活性劑為保護劑，採用逐滴加入沉澱劑，微波加熱代替傳統加熱的均相沉澱法，制備出了粒度小、分散性好的ceo _ 2納米粉體。
  2. The relation in process, morphology and properties of material was studied. 1. in - situ precipitation method was developed to prepare chitosan rod by using chitosan membrane as template and naoh as precipitant

    本論文提出了用原位沉積法制備殼聚糖三維醫用材料，並對材料的成型工藝、聚集態結構及其與材料性能之間的關系作了初步的研究。
  3. Studies showed that process and condition control had critical effect on the preparation of yig phase, and the proper conditions specialized as follows : using ammonia - ammonium nitrate ( nh3 - nh4no3 ) as precipitant, ph scope from 10 to 10. 5, using dissolving salt as law materials, dropping their mixed solution into precipitant, precipitation rate at 0. 8ml / min

    研究表明，共沉澱的過程和條件控制對yig的合成具有重要影響。實驗得出共沉澱的合適條件為：以nh _ 3 - nh _ 4no _ 3為緩沖溶液，控制ph范圍為10 . 0 ? 10 . 5 ，採用可溶性鹽為原料配製溶液，滴加到沉澱劑中的共沉澱方式，共沉澱速度為0 . 8ml min左右。
  4. It is the optimal time for subjecting creatine to the medium when cultured to 12h and the concentration of creatine was 0. 75 %. creatine, sarcosine and choline chloride could induce the creatinase production and creatine was the optimal inducer, but creatinine and urea could not induce the creatinase production. 3 purification of creatinase the process of creatinase purification was performed as follows : first the enzyme was completely precipitated in the range of 40 - 80 % of saturation with ammonia sulfate fraction precipitation

    最佳氮源為玉米漿和蛋白腖，最佳比例為2 ： 3 ，最佳濃度為1 . 6 ；加入其它碳源時有助於菌株穩定產酶； 100ml搖瓶的最佳裝液量為15ml ；肌酸、肌氨酸和氯化膽堿都能誘導菌株產酶，其中肌酸誘導產酶的效果最好，而肌酐和尿素不能誘導菌株產酶；誘導物肌酸的最適加入時間為接種培養12小時后，最適加入量為0 . 75 。
  5. The dependence of oxygen precipitation and induced - defects in heavily as - doped silicon on heat treatment process was studied by annealing and ig process, chemical etching, scanning electron micrograph ( sem ) and transmission electron microscopy ( tem ). a developed ig technique was suggested and the mechanism of the influence of as on oxygen precipitation formation in heavily as - doped silicon was discussed

    本文通過化學腐蝕、光學顯微鏡、掃描電鏡（ sem ） 、透射電境（ tem ）等分析技術，對重摻砷硅單晶在單步退火工藝和內吸雜退火工藝中氧沉澱及誘生缺陷的形態，形核與熱處理溫度、時間的關系等進行了研究。
  6. These results suggest that the new scheme will provide some valuable information on macro and micro structure characteristic of stratus cloud, physical process of precipitation and weather modification research

    說明新方案可以為層狀雲的宏微觀結構特徵、降水物理過程和人工影響研究提供一定依據。
  7. W - cu composites prepared from the precipitation w - cu powder have higher sintered density, better mechanical and physical property, more homogeneous and finer microstructure than those prepared from w - cu powder by the balling - reduction method. in chapter 5, a combination of homogeneous precipitation and ball - milling process, namely the mechano - thermochemical process was employed to prepare ultra - fine w - cu powder

    其中，球磨w一cu復合粉（ hp一m ）壓坯在1150下燒結30min后，可獲得相對密度大於99 %的幾乎全緻密的超細晶粒w一cu復合材料， w的顆粒度小於0 . 5林m 。
  8. It is firstly found that for alloys in transitional region, with enhancement of atomic interaction energy, pregnant period of " phase is shortened dramatically, and process of clustering accelerated remarkably, stages of growth and coarsening of " phase brought forward, i. e. precipitation mechanism of alloy in transitional region incline to that of alloy in instable region

    首次發現，隨著原子間相互作用勢的增加，過渡區合金中有序相的孕育期明顯縮短，原子簇聚過程明顯提前，相的長大和粗化階段也有所提前，即促使過渡區合金的沉澱機制偏向失穩區合金。
  9. Biosorption is a process that utilizes inexpensive active / dead biomass to sequester heavy metals and is particularly useful for the removal of contaminants from industrial effluents. compared with conventional methods such as ion exchange and precipitation with lime, the biosorption process offers the advantages of low operating cost, minimization of the volume of chemical and biological sludge to be disposed of, high efficiency in detoxifying very dilute effluents

    生物吸附技術是環境領域近年來迅速發展起來的處理工業污染廢水的新技術，它以各種生物（菌類或藻類）吸附廢水中的重金屬離子，具有吸附容量大，選擇性強，效率高，消耗少，並能有效的處理含低濃度重金屬離子廢水等優點。
  10. Additionally, it was the precipitation process of suspended phosphorus that played a relative important role in phosphorus removal in cold periods, and that was adsorption / complexation of dissolved inorganic phosphorus in warm periods

    此外，低溫期懸浮磷的沉積作用除磷效率高；高溫期溶解無機磷的吸收絡合作用除磷效率高。
  11. In this process, the moisture of the initial field between the lifting condensation level and the cloud top at the point where rain is observed is adjusted to allow precipitation process to be switched on

    在這個過程中，初始場中降雨區域上空，位於抬升凝結高度與雲頂之間的濕度會予以調整，作用是要啟動降水過程。
  12. Several kinds of inorganic solid proton conductors including zirconium phosphates, heteropolyacids ( hpa ) and hydrogen sulfates and three kinds of methods such as hybrid solid casting, exchange - precipitation process and sol - gel process which can incorporate the inorganic solid proton conductors in pems were introduced

    摘要主要介紹了目前摻雜質子交換膜用的幾種無機質子導體磷酸鋯、雜多酸、硫酸氫鹽等，並進一步介紹了將這些無機質子導體引入到聚合物中的3種摻雜方法：混合澆鑄法、離子沉澱法和溶膠凝膠法。
  13. The test results have showed that the w - cu powder produced by the homogeneous precipitation process has a near spherical shape, a particle size ranging from 50 to 200nm and a uniform distribution of w and cu gradients

    研究結果表明，均相沉澱法制備的w - 30wt . cu復合粉末顆粒明顯呈球狀， w 、 cu組分呈均勻、彌散分佈，透射電鏡觀測顯示其粒徑范圍在50 - 200nm之間，為超細粉體。
  14. Analyses on the first strong precipitation process in 2006 summer in changzhi city

    長治市2006年夏季首次強降水過程分析
  15. The heating rate of the precipitation process is also adjusted to correspond to the rainfall amount observed

    此外，降水過程的加熱率亦會相應地調整，以符合實況觀測的雨量。
  16. This paper has reviewed the resources of ceo2 in our country, the markets and the condition of application. the advantages and drawbacks of the important preparation methods were reviewed. it puts emphasis on the reaction mechanism of precipitation method to nanoparticals and analyzes redox potential between ce3 + and ce4 +, puts forward a new technics named " a two - stage precipitation process " to succeed in obtaining nanocrystalline powers of cerium oxide

    本文簡要介紹了我國ceo _ 2的資源和市場以及國內外納米ceo _ 2的應用現狀：分析對比了納米ceo _ 2制備研究現狀；重點討論了沉澱法制備納米粉體的理論基礎：結合鈰（ ）離子、鈰（ ）離子的氧化?還原電位分析，提出以兩步沉澱法來制備納米二氧化鈰。
  17. ( 2 ) the affecting factors such as components in precipitation process, the add - on, add on of precipitator, calination temperature and calination time were studied in the preparation process of ceo2 nanoparticles. the tg was used to analyze the processor, the xrd, sem and tem were used to characterize the size of crystal type of products. by a series of designed experiments the interaction between different factors and impacts on the preparation of ceo2 nanoparticles were probed, and the optimum preparation condition was gotten

    （ 2 ）對納米二氧化鈰制備過程中可能的一些影響因素（反應組分的濃度，沉澱劑的加入量，焙燒溫度，焙燒時間等）進行了研究，並通過tg ? dta分析手段對前驅物進行熱重分析；用xrd 、 sem及tem等測試手段對產物的粒度和晶型進行分析；探索了各個因素對納米二氧化鈰制備的影響及各因素間的交互作用；確定了在該試驗條件下制備納米二氧化鈰比較優化的制備條件。
  18. The main contents of this dissertation are summarized as follows. ( l ) by investigating and preparing the ceo2 nanoparticles with various precipitators we choosed the cerium ( iii ) nitrate, hydrogen peroxide and ammonia as the materials to prepared the nanoparticles by a two - stage precipitation method the process differents from the general precipitation process

    試驗的主要研究內容： （ 1 ）通過不同沉澱劑的制備研究，選擇以硝酸鈰、雙氧水和氨水為基本原料，經過鈰（ ）離子的氧化和鈰（ ）離子的沉澱兩個主要過程制備納米二氧化鈰。
  19. Abstract : new methods of preparing rare earth doped yag phosphors, which contain sol - gel, macro - molecule network gel and precipitation process, were summarized. the structure, luminescence property and grain sizes of the phosphor powders were also described

    文摘:本文總結了稀土離子摻雜的釔鋁石榴石發光粉末合成的新方法，包括溶膠-凝膠法、高分子網落凝膠法、沉澱法等，並介紹了這些發光粉的性能。
  20. The key to the stochastic modeling is to build a suitable stochastic model of precipitation. in resent years, most models of precipitation process have been developed under some hypothesis or using advaced mathematical tools, but the applicability of these models is not strong

    地區乾旱隨機模擬研究的關鍵是建立合適的降雨過程隨機模型。目前給出的大多數降雨過程隨機模型，盡管運用了較多的假定條件或高深的數學工具，但適用性不強。
分享友人
分享到 Line

分享到臉書