precursor time 中文意思是什麼
precursor time
解釋
前兆時間-
A series of preparation conditions and parameters were systematically studied. it is concerned that the effects of prepared method of precursor, material synthesize method, fired atmosphere, fired temperature, fired time, flux kind and content, rare earth concentration and kind and matrix on the microstructure and optical storage properties of the samples. at the same time, the optical storage mechanism was discussed in certain extent
系統地研究了一系列的工藝條件及參數，討論了前驅物制備方法、材料合成方法、灼燒氣氛、灼燒溫度、灼燒時間、助熔劑種類及含量、稀土摻雜濃度及種類、基質成分對樣品微觀結構及光存儲性能的影響，同時對樣品的光存儲機理作了一定程度的探討。 -
The characteristic of different products at different calcinating temperatures and time, ph value of solution, raw materials were investigated. the results show that perfect spinel li4mn5o12 crystals whose size belongs to nanometer can be obtained from the precursor of lithium manganese oxides after being calcinated. it is founded that calcinating temperature has great influence on the crystal structure of li4mn5o12 and the optimized temperature is 500
結果表明焙燒溫度是影響產物結構性能的最重要的因素，最佳焙燒溫度為500 ，溫度小於200不能形成完整的尖晶石結構，而焙燒溫度超過500產物會發生分解；綜合考慮焙燒時間最佳為8小時；溶液ph值也是影響產物性能的因素之一，實驗證明前驅體合成ph = 9 . 0最佳；另外不同的原料也會影響產物的結構，考察了不同鋰源的影響，選擇li _ 2co _ 3為最佳鋰源。 -
( 2 ) the oxygen - rich spinel material from sintering the precursor at low temperature changed into perfect spinel structure due to releasing the excess oxygen when raised the sintering temperature slowly, which caused the lattice expanded and at the same time the system energy lowered and the bonding energy raised, and tansformed into the stoichiometric limn2o4 at 700
（ 2 ）低溫燒結合成的材料為富氧型尖晶石材料，隨著溫度的升高，結構中多餘的氧逐漸釋放，系統能量降低，結合能增加，品格發生膨脹，樣品向完整的尖晶石結構逐漸過渡。 700得到的材料為化學量的limn _ 2o _ 4 。 -
Results show that when the ratio of the ion concentration is 1. 707, ph of the reaction is 10. 0, reaction temperature is 45 and the aging time is ih, the ultra fine mn - zn ferrite precursor particle can be obtained
得到粒度最小的參量值如下：離子濃度比為1 . 707 ，溶液ph值為10 . 0 ，水浴溫度為45 ，陳化時間為1h 。 -
In order to obtain the mn - zn ferrite precursor particle which has itra - fme property, the optimum technological condition was obtained through the orthogonal experiments in this paper. in the co - precipitation procession of preparation the leading factors that affect the size of the particle are ratio of the ion concentration ( a ), ph of the reaction ( b ), temperature of reaction ( c ), and aging time ( d )
本文通過拉丁正交試驗，以粒徑尺寸為考察目標，將離子濃度比（ a ） ，反應ph值（ b ） ，水浴溫度（ c ）和陳化時間（ d ）作為四參量，利用每一參量為變量進行試驗確定各參量值，從而確定製備超細錳鋅鐵氧體前驅體粉末的條件。 -
Spinel limn2o4 begin to form at 350 with the sintering time of 4 hours because there are one li + and two mn2 + in one precursor molecule. when the sintering temperature is larger than 750, a specific sintering route is designed to avoid the formation of li2mno3 impurities
前驅體的焙燒溫度和焙燒時間對limn _ 2o _ 4樣品的晶相結構有很大的影響，焙燒溫度高於750時，應採用分段焙燒工藝以防止局部高溫形成li _ 2mno _ 3雜質。 -
Results showed that the factors include : solvent and concentration of limn204 precursor solution, spin - coating speed, heating speed, sintering temperature and time etc. in the end, techniques of sintering under vacuum conditions were studied
主要有以下幾方面:溶液中離子總濃度以及分散劑濃度對成膜質量的影響;旋轉塗覆時轉速、熱處理的升溫速度、燒結溫度、燒結時間對薄膜晶型結構及性能的影響。 -
Through the synthesis of licoo2 by using non - water dispersant and two - step roasting, influences of microstructures of precursor, the roasting temperature and the reaction time on the electrochemical properties of licoo2 were studied. it indicated that co3o4 with nano - crystalline have very good electrochemical property, and can shorten solid reaction time
02的制備工藝，考察了不同微結構的co30 ;先驅物，焙燒溫度和焙燒時間等工藝條件對licoo ，電化學性能的影響，其中以納米晶co3o ;制備出的licooz表現出優良電化學性能，且大大縮短了反應時間。 -
The optimum conditions of preparation were as fellows : the concentration of zinc sulfate solution of 1. 8 - 2. omol / l, the concentration of ammonium bicarbonate solution of 1. 4 ~ 1. 6mol / l, the time of ultrasonic radiation of 25 ~ 30min. iv. preparation of active zinc oxide by means of microwave radiation to calcine precursor of basic zinc carbonate firstly, and a mechanism on preparation of ultra - fine active zinc oxide by means of microwave radiation has been investigated emphatically as well as the effects on quality of ultra - fine active zinc oxide have been analyzed and discussed in detail, the time of microwave radiation was 7 ~ 16 min ; comparing microwave radiation calcining with conventional calcining, the calcining time of microwave radiation was one thirty to one twenty, the calcining time shortened hugely, energy consumption saved hugely, the quality of product improved
首次引入超聲波輻射制備超細活性氧化鋅前驅體堿式碳酸鋅新技術，研究了超聲波輻射制備前驅體堿式碳酸鋅的機理，並分析和討論了影響前驅體質量的各種因素，確定了最佳的前驅體制備條件為：硫酸鋅濃度為1 . 8 2 . 0mol / l ，碳酸氫銨的濃度為1 . 4 1 . 6mol / l ，超聲波輻射25 30min ； 4 、首次採用微波加熱煅燒前驅體堿式碳酸鋅制備超細活性氧化鋅的新技術，研究了微波輻射加熱煅燒前驅體制備超細活性氧化鋅的機理，並分析和討論了影響活性氧化鋅質量的各種因素，確定了最佳的超細活性氧化鋅制備條件為：微波加熱煅燒時間為7 16min ，與傳統煅燒方法相比，煅燒時間僅為傳統的1 30 1 20 ，大大縮短煅燒時間，節省能耗，提高了煅燒產品的質量； 5 、完成了從鋅浮渣中制備超細活性氧化鋅的小試試驗和擴大試驗。 -
The oxygen sensing properties of the membranes have been studied, the results indicate that the membranes with ru ( phen ) 3cl2 have better oxygen - sensitivity than those with ru ( bpy ) 3cl2, and the membranes with the formamide content of 16 % ( v / v ) and ru ( phen ) 3cl2 content of 2. 10g / l in the precursor mixture have the best structure and quality. the fiber optic gas oxygen sensor with this sensing membrane has a detection limit of 5ppm, a response time of less than 30s, excellent reproducibility and stability. ( 2 ) a new kind of organically modified oxygen - sensitive membrane based on fluorescence quenching was prepared by sol - gel method, using dds and teos as the mixed precursor, rufchenbcla as the indicator
實驗證明：該類敏感膜的tan _ 0 tan值與氧氣濃度存在良好的線性關系；包埋ru （ phen ） _ 3cl _ 2的凝膠膜的氧敏感性相對較好；當甲酰胺為16體積比含量， ru （ phen ） _ 3cl _ 2在前驅體中濃度為2 . 10g l時，制備的敏感膜結構和性能最佳；對氣態氧檢測時，該敏感膜的響應時間小於30秒，檢測下限為5ppm ，具有較好的重復性和穩定性。 -
By analyzing the thermal decomposition mechanism of fec _ 2o _ 4. 2h _ 2o precursor, we mainly carried out the experiments of the influence of the deoxidation temperature to the appearance of sfp of fe, the influence of the deoxidation time to the appearance of it
Fec _ 2o _ 4 . 2h _ 2o還原制備超微純fe粉實驗部分，進行了還原時間對前驅體還原程度影響實驗，以及還原溫度對超微fe粉顆粒形貌影響實驗。 -
It has discovered for the first time that the precursor b - ni1 - xcox ( oh ) 2, with pluffy and dendritic morphology, high specific surface area and low tap density, is the best starting material to produce lini1 - xcoxo2 materials, but not the presently thought that high density and spherical particle of ni ( oh ) 2 is fitting for the preparation of ni - cathode materials. using our own precursor can greatly reduce the degree of cation mixing ; improve the electrochemical properties of the aimed materials
發現表面蓬鬆、比表面積高和密度低、呈枝晶狀排列的- ni _ （ 1 - x ） co _ x （ oh ） _ 2前驅體具有較高的化學活性，制得的目標材料可有效抑制陽離子混排產物的生成，而非目前廣泛認為的高密度球形ni （ oh ） _ 2適合作鎳系正極材料的前驅體。 -
Abstract : the saturation behavior of stress current is studied. the three types of precursor sites for trap generation are also introduced by fitting method based on first order rate equation. a further investigation by statistics experiments shows that there are definite relationships among time constant of trap generation, the time - to - breakdown, and stress voltage. it also means that the time constant of trap generation can be used to predict oxide lifetime. this method is faster for tddb study compared with usual breakdown experiments
文摘:基於一階速率方程，討論了恆定電壓應力下應力電流的飽和行為.通過對應力電流的擬合，發現存在三類缺陷產生的前身.更進一步的統計實驗顯示，在缺陷產生時間常數、擊穿時間以及應力電壓之間存在著明確的關系.這意味著缺陷產生時間常數能夠被用於有效預測氧化層的壽命.與常規的氧化層擊穿實驗相比，基於缺陷產生時間常數的預測更快、更有效 -
Then later, when enough time has passed, become strong in your resolve to understand that everything you are seeing now is a precursor to a new kind of partnership with the forces of the planet
然後，當足夠的時間過去，在你心中會堅定的明白，你現今所看的一切是一個先驅履行同地球力量的新契約。 -
The results turned out that the crystal structure was changed by the variation of the deposition temperature and annealing time. the surface morphology was greatly influenced by the spray parameters which atomized the precursor droplet in different diameters and different intensities
薄膜的表面形貌隨著噴霧參數的改變發生了較大的改變，噴霧參數的改變使是霧化液滴大小和液流密度隨之發生了一定改變。
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