擇優氧化 的英文怎麼說

中文拼音 [zháiyōuyǎnghuà]
擇優氧化 英文
preferential oxidation
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 氧 : 名詞[化學] （氣體元素） oxygen （o）
  • 擇優 : alternative optimum
  • 氧化 : [化學] oxidize; oxidate; oxide; burning; rust; oxygenize; oxido-; oxy-
  1. 1 ) the synthesis and structural characterization of 5, 10, 15 - tris ( penta - fluorophenyl ) corrole and its corresponding [ 5, 10, 15 - tris ( pentafluorophenyl ) corrolato ] manganese ( iii ) ; 2 ) the synthesis and structural characterization of series of porphyrin and metalloporphyrins as follows : chloro [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] manganese ( iii ), chloro [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] iron ( iii ), [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] copper ( ) and - oxo - bis [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinatomanganese ( iii ) ]. 2. in the third charpter, a highly selected silver electrode based on 5, 10, 15 - tris ( pentafluorophenyl ) corrole has been prepared, and its response was compared with that of metallo corrole counterpart and 5, 10, 15, 20 - tetra ( phenyl ) porphyrin

    3 、制備了以-氧-雙（ 5 ， 10 ， 15 ， 20 -四（對甲基苯基） ）錳卟啉載體的鉬酸根選擇性電極，並與5 ， 10 ， 15 ， 20 -四（對甲基苯基）鐵卟啉、 5 ， 10 ， 15 ， 20 -四（對甲基苯基）錳卟啉、 5 ， 10 ， 15 ， 20 -四（對甲基苯基）銅卟啉電極的響應性能進行了比較，對電極的膜組份進行了優化，並分別考查了電極的選擇性、 ph值影響、穩定性和壽命等，並將該電極應用於腐蝕抑制劑中鉬酸根的測定。
  2. The main work and the conclusion of the article are : ( 1 ) give a suggestion on the reaction mechanism and the principle of catalyst selection. ( 2 ) by comparison of the catalyst activity of solid superacid with the zinc oxide, stannous chlorde and tin ( ii ) octate in the synthesis reaction. we find that although its activity is lower than tin ( ii ) octate, obviously higher than that of traditional zinc oxide and stannous chlorde. from the point of preparation cost, we select solid superacid as catalyst

    但從催化劑的制備成本和工藝的角度選擇，固體超強酸具有明顯的優勢； （ 3 ）制備一系列單組元和雙組元硫酸促進氧化物固體超強酸，並用於丙交酯的合成反應，篩選具有最佳活性的固體超強酸催化劑： （ 4 ）使用so2 - 4 / zno - sno2 （ 2 ： 1 ） la3 +固體超強酸作催化劑，反應脫水時間1
  3. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  4. The first part comprises industrial pta oxidation process modeling, residual fluid catalytic cracking process modeling, complex distillation modeling and analysis, the application of pta oxidation process soft - sensor technology. in the second one, the infeasibility degree based genetic algorithm is proposed to handle constrained optimization problem in engineering cases and the neighborhood and archive based genetic algorithm and its variant are proposed to treat the multi - objective optimization problem. with that, the pta oxidation process is regarded as a benchmark for the application of the proposed multi - objective optimization genetic algorithm

    論文內容分為兩部分，第一部分對包括三個典型的工業過程， pta氧化反應器、渣油催化裂化反應系統和復合式精餾塔進行分析、建模以及pta氧化過程的軟測量工程實施；第二部分分別提出了基於進化演算法解決工業過程中普遍存在的約束優化問題和多目標優化問題的過程優化演算法? ?基於不可行度選擇遺傳演算法和基於鄰域和存檔操作遺傳演算法，並利用該演算法對工業pta氧化過程操作進行多目標優化研究。
  5. Some additives such as graphite, ptfe and csno3 can improve obscuring effect of smoke screening in infrared waves. furthermore, some formulas entered nano ferric oxide can largely improve the effect of infrared extinction

    指出金屬鎂粉優于其它金屬粉；三氧化二鐵和二氧化鈦是較好的氧化劑選擇；石墨、聚四氟乙烯和硝酸銫的添加有利於提高發煙劑紅外遮蔽能力。
  6. Moreover, the two - step heat treatment method was utilized in the preparation of the films, the films prepared by the first coating with 550 ? heat - treatment and the second coating with of with 500 ? heat - treatment ( b type films ) were highly c - axis oriented with smooth, dense and uniform surface morphology

    此外，結合高溫和低溫熱處理方法優點的兩步熱處理法得到的b型薄膜同時具有較好的c軸擇優取向性和更為平整均勻的表面形貌。另外，在硅基板上也制備出了良好的c軸擇優取向性的摻雜氧化鋅薄膜。
  7. In this dissertation, high quality ( 002 ) textured zno films were prepared on silicon substrate using electron beam evaporation method. in addition, zno nano - particle material embedded into mgo thin films was prepared by a co - evaporation ( thermal and electron beam evaporation, simultaneously ) method and a following post - annealing process in oxygen ambient

    本文介紹了採用電子束蒸發方法在si襯底表面上制備出了具有c軸擇優取向的高質量氧化鋅薄膜材料，另外，還採用共蒸發（通過電子束蒸發與熱蒸發同時進行）及後退火的簡單方法制備出包埋到介電物質mgo薄膜中的zno量子點材料。
  8. Finally, the dtbp additive is the best one with the best mass concentration 2 %

    本文最終選擇質量分數為2 %和二叔丁基過氧化物（ dtbp ）為最佳濃度和最優添加劑。
  9. Firstly we maked sure method of isolating arabidopsisis mutant by thermal imagings in many ways on trial, optimize conditions for isolation, and confirm the good period of seedlings and fine density for isolation, select correct isolating pressure ( drought and h2o2 ) that is fit for isolate mutant. secondly we obtain an ml population derived from 0. 4 % ethyl methanesulfonate ( ems ) - mutagenized wild type arabidopsis thaliana

    本實驗首先是對利用遠紅外成像技術篩選擬南芥突變體方法的可行性進行多方面的試驗，優化篩選條件、確定篩選所需幼苗的生長時間、種植密度，界定用於篩選所需的脅迫（過氧化氫和乾旱）選擇壓力。
  10. Two coating approaches were adopted, one was to do next coating after 550 ? heat - treatment ( called a coating technique ) ; the other was to do next coating after 100 ? drying, the films coated by several times were heated at 550 ? ( calied b coating technique ). xrd, sem, tem and afm were used to characterize the crystallization behavior, orientation and surface morphology of the zno thin films

    運用xrd 、 sem 、 tem以及afm等對所得的樣品進行了分析和研究，結果表明：採用不同的旋塗工藝得到不同的薄膜厚度，而採用每次塗膜形成氧化物膜后再進下一次塗膜的方式能更好的保持zno薄膜的c軸擇優取向生長。
  11. Prepared technical parameters were optimized by l9 ( 34 ) experiment analysis. a unique method for cleaning and drying of substrate - cleaning used by scour, drying used by infrared light was fished out by large numbers of experiment. chemical mechnism of zno thin film prepared by sol - gel technique was discussed by dta for the first time. by the measurements of sem, xrd and uvs, the thin film was analysed. the result proved that the thin film with strongly preferred orientation of c - axis perpendicular to the substrate surface which surface was homogenous, dense and crackfree was the crystalline phase of hexagonal wurtzite. the thin film was composed of plentiful asteroidal crystal which crystal dimension approximately 10 30nm. the average transmittance of thin film in visible region was above 90 %. the results of measurements else also proved that the thickness of single dip - coating was 75 240nm, this films resistivity was found to be 3. 105 102 3. 96 105 ? cm. the thickness and resistivity of thin film influenced by dope - content, withdrawal speed, pre - heat - treatment, anealing were reseached respectively

    利用xrd 、 sem以及uvs光譜儀等分析方法對薄膜進行了研究，結果顯示，所制備的薄膜為六方纖鋅礦型結構，具有高c軸擇優取向性；表面均勻、緻密，薄膜材料由許多星狀晶粒組成，晶粒尺寸大約為10 - 30nm左右；薄膜可見光透過率平均可達90 % ；對薄膜厚度以及電學性能進行了測定后發現：單次鍍膜厚度約為75 - 240nm ， al ~ （ 3 + ）離子摻雜型氧化鋅薄膜的電阻率在3 . 015 102 - 3 . 96 103 ? cm范圍內；分別研究了摻雜濃度、提拉速度、預燒溫度、退火溫度等工藝參數對薄膜厚度和電阻率的影響。
  12. Water pollution was becoming intensified, while with the improvement of human ' s living standard, more attention was increasingly paid to the sanitation and safety of drinking water. so adopting advanced drinking water purification to obtain high quality water was necessary. by changing the different combination of drinking water ' s regular treatment process, ozonation, activated carbon and biological activated carbon, the paper chose the optimal treatment process, also the parameters of the process were analyzed through experiments, then the economic, reasonable process parameters were determined

    水污染不斷在加劇，而隨著人們生活水平的提高，飲用水的衛生和安全越來越被關注，因此有必要採用先進的飲用水深度處理技術來獲得優質飲用水，本文通過改變飲用水常規處理工藝、臭氧化、活性炭與生物活性炭的不同組合的中試試驗研究，選擇出了最佳處理工藝，又對最佳處理工藝的各個參數進行試驗分析，確定出經濟合理的工藝參數，在現有的條件下，對預臭氧化進行了生產試驗。
  13. 1. nizn ferrite was developed for using in mini high frequency dc - dc converters and inductors. we measured and analysed the parameters of the nizn ferrite, which we concern about when designing the dc - dc converter. 2. the low loss sample of nizn ferrite were chosen for design - optimization of the high frequency transformer. based on the relevant theoretical researches, the loss properties of the magnetic core material and winding were analyzed in this thesis

    因此，以nizn功率鐵氧體材料為開關電源芯材為基礎，並優化各種開關電源的設計已成為國際上的熱點和技術瓶頸，本論文正是以上述背景為研究目標而開展工作的，主要進行的工作和創新有: 1 .對研製的新型高頻低功耗的功率nizn材料進行參數的測試，並針對dc - dc變換器設計關心的參數對芯材特性進行了分析，選擇在特定頻率下，功耗較小的nizn材料磁芯樣品作為變壓器優化設計的預備磁芯。
  14. After comparing main advantage and disadvantage of all theories of gas concentration measurement, this thesis chooses so2 as object to research a kind of so2 concentration measurement apparatus on the base of theory of photoacoustic effect and the optical fiber phase modulated mechanism

    本文在分析各種氣體濃度檢測方法的主要優缺點的基礎上，選擇二氧化硫（ so2 ）作為研究對象，研究一種應用光聲光譜原理和光纖光相位調制機理相結合的氣體濃度監測儀。
  15. Abstract : in the present paper the progress was reviewed in the active filler metals with different temperatures for ceramic to metal brazing and related brazing technique of reducing joining - gap residual stress. it was recommended that the key developing field for our country should be the high temperature active filler with heat - and oxidation - resisting properties. the brazing techniques to reduce joining - gap residual stress and the principles to select transition layers for the joining gap were also introduced

    文摘:闡述了陶瓷/金屬釬焊用不同溫度的活性釬料及以降低焊縫殘余應力為中心的釬焊工藝進展；指出：在我國耐高溫、抗氧化性優良的高溫耐熱型活性釬料是重點發展方向；介紹了降低焊縫殘余應力的釬焊工藝和焊縫中間添加過渡層的選擇原則。
  16. For the first time, we obtain a ( 002 ) orientated high quality zno thin films with the full width at half maximum ( fwhm ) of 0. 2o located at 34. 42o at a low temperature of 180

    首次報道了用這種方法在襯底溫度為180oc條件下制備了（ 0002 ）擇優取向，其x -射線衍射峰的半峰寬為0 . 2度的高質量氧化鋅薄膜。
  17. The relationships between the substrate temperature and the properties of zno films were studied in detail, we obtained a ( 002 ) orientated high quality zno thin films with the full width at half maximum ( fwhm ) of 0

    用這種方法在襯底溫度為180條件下制備了（ 0002 ）擇優取向， x -射線衍射峰的半高寬為0 . 2度的高質量氧化鋅薄膜。
  18. Solid oxide fuel cells ( sofcs ), which can convert chemical energy intoelectrical energy directly, is attracting more and more attentions because of theirhigh - energy conversion efficiency, low pollution, and fuel flexibility

    固體氧化物燃料電池是一種將化學能直接轉化為電能的裝置，具有能量轉化效率高、環境友好及燃料選擇范圍廣的優點，越來越受到研究者的重視。
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