稀土離子 的英文怎麼說

中文拼音 [xītǔlízi]
稀土離子 英文
rare earth ion
  • 稀 : Ⅰ形容詞1 （事物出現得少） rare; scarce; uncommon 2 （事物之間距離遠; 空隙大） sparse; scattered 3...
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 離子 : [物理學] ion
  1. The discovery of the colossal magnetoresistance ( cmr ) in hole - doped perovskite manganites ra1 - xmxmno3 ( ra is a trivalent rare - earth ion and m is a metal ion ) has attracted much attention since 1989 due to not only its technological applications in magnetic recording and sensor, but also the effect of the strong correlation concerning metal - insulator transition in the field of basic research. since then, several physics models have been suggested to explain the mechanism of cmr. however, the exact mechanism of cmr remains to be done

    自1989年在摻雜鈣鈦礦型錳氧化物ra _ （ 1 - x ） m _ xmno _ 3 （其中m為金屬離子， ra為三價稀土離子）中發現龐磁電阻（ cmr ）以來由於其在磁記錄、磁傳感器等方面潛在的應用前景，以及金屬?絕緣體相變等所涉及的強關聯效應，使該類化合物吸引了物理學界的廣泛注意。
  2. Study on radiative lifetimes of rare earth ions in tellurite glasses

    碲酸鹽玻璃中稀土離子發光壽命的研究
  3. Abstract : the effects of terbium ion on the conformation of calmodulin and on the interaction between calmodulin and melittin have been studied by the endogenous fluorescent spectrometry of calmodulin and melittin, and the sensitized fluorescent spectrometry of terbium ion, respectively. the results show that terbium ions have a tight binding site in the i and ii metal - binding sites of calmodulin. the conformation of calmodulin induced by terbium ion can bind melittin and transfer the tryptophane residue of melittin to a relatively hydrophobic environment, while the binding of melittin to calmodulin produces effect on the binding orders of terbium ion in camodulin. results from ft - ir spectrometry have revealed that upon binding of lanthanum ion, apo - calmodulin undergoes a conformational change with the increase of - helix content and the decrease of - sheet content. melittin ' s binding to calmodulin has no effect on its conformation induced by the binding of lanthanum ion to calmodulin

    文摘:分別用鈣調蛋白和蜂毒素的內源熒光光譜以及鋱離子的敏化熒光光譜考察了鋱離子對鈣調蛋白構象變化以及對鈣調蛋白與蜂毒素相互作用的影響.結果表明，鋱離子首先結合在鈣調蛋白的第和第位點，鋱離子不影響鈣調蛋白與蜂毒素的相互作用，蜂毒素與鈣調蛋白作用后不影響鋱離子在鈣調蛋白上的鍵合順序.傅里葉變換紅外光譜結果表明三價的鑭離子與鈣調蛋白作用使鈣調蛋白的螺旋結構增加，折疊結構減少，與鈣離子對它的二級結構影響相類似.稀土離子在鈣調蛋白-蜂毒素復合體系中主要與鈣調蛋白作用
  4. After being oriented, cutted and polished, the grown crystals was processed into a series of wafers

    將晶體進行定向、切割和拋光，加工成晶片，測定了稀土離子的分凝系數、晶體的晶胞參數和折射率。
  5. In the calculation, we found that indirect exchange of rare earth ion has vital function on the calculation of magnetization and magneto - optical properties. there is some difference between the calculated data and the theoretical data using the current theory

    計算中作者研究發現，用量子理論在計算磁化強度和磁特性時，稀土離子的王維ergag石榴石磁特性的研究間接交換作用對其影響也是至關重要的。
  6. Measurement for the fluorescent spectra of rare earth ions - doped laser glass

    摻稀土離子激光玻璃熒光光譜的測量
  7. Spectral properties and energy transfer between rare earth ions of al3 4 ce, tb

    的光譜特性及稀土離子間的能量傳遞
  8. The development of research on perovskite materials doped with ions and particles, sol - gel technique and sol - gel processing of pbtio3 ( pt ) based materials were intensively reviewed. the luminescence theory of rare earth ions and the properties of carbon nanotube ( cnt ) were introduced briefly

    本文全面回顧了離子和微粒摻雜改性鈣鈦礦相鐵電材料的研究進展，總結了溶膠凝膠技術在制備此類材料中的應用，並簡要介紹了稀土離子發光機理和納米碳管的性能。
  9. ( 2 ) the kinetics of mesostructure formation is studied. the induction time formation of a white precipitation decrease with the concentration of [ oh " ]. the effect of salts is presented because of adding the re3 + ions into neutral solution containing surfactant. the mechanism of mesostructure formation through " hydrogen - bonding interaction, complex - bonding interaction and a local reconstruction process of the frameworks "

    （ 6 ）當稀土離子進入hms樣品骨架，靠近外來原子的對稱a o st會產生小的變形。 st o st振動帶由於配位金屬電荷遷移躍遷而變成拉曼活性模。 （ ）用ftth光譜研究了a oh凝聚反應動力學，建立了a oh凝聚反應動力學方程，求得其凝聚反應活化能為28士7kj in 。
  10. According to the sample prepared by hydrothermal method, the doping cations can enter the spinel lattice. rare earth cations mostly occupy position b because of their big radius. cerium are oxidized to ce4 +, whose radius is relatively small, and ce4 + mostly occupies position a. as a whole, the coercivity of cobalt ferrite doped with rare earth element is bigger than that of pure cobalt ferrite

    結果表明，對水熱法制備的鐵氧體粒子，雜質離子能夠進入其尖晶石晶格中，並因稀土離子的半徑較大，而絕大部分佔據尖晶石的b位，鈰元素因被氧化成為四價離子，離子半徑相對較小，而主要佔據a位。
  11. It is thought that the exciplex ' s emission is eliminated completely by modulating the transient excited state of exciplex thought varying the ratio of two molecules and by action from the excited state level of rare - earth ions

    對于稀土配合物，可以通過控制混合層中的分子比率調制激基復合物的瞬間激發態能級位置，使其與稀土離子的激發態能級匹配，將激基復合物完全消除。
  12. Octahedral [ pbi6 ] works as network modifier and they are homogeneously dispersed in the disordered network by linking with [ ass3 / 2 ] pyramids by s - i bonds. systematical studies on these three glass systems indicate that they are all promising candidates for ir optical fiber materials. and ges2 - ga2s3 - cscl glasses are potential host glasses for re doped 1. 3 m amplifiers

    實驗結果表明：三個系統的玻璃均為較有前途的中遠紅外光纖材料，且ges _ 2 - ga _ 2s _ 3 - cscl玻璃是潛在的稀土離子摻雜1 . 3 m光纖放大器的基質材料。
  13. Then combined with the two main mechanisms it is putting forward the idea of compound - mechanism antimicrobial. as a result, there come the two types of nano - inorganic antimicrobials : ( 1 ) ion - sterilizing antimicrobial which utilized the sterilization function of re and used the powder ( active sio2 ) as carrier. ( 2 ) compound - mechanism antimicrobial which has both the sterilization function of re and the light - catalyzing sterilization function of nano - tio2 whose wavelength of light - absorption has einstein shift because of the mix - into of re

    首先對市場上主要的抗菌劑產品進行歸類，對其殺菌機理進行對比分析，結合離子殺菌與光催化殺菌，提出了復合機理抗菌劑的思想，研製出：以稀土為殺菌主體，活性sio _ 2為載體的離子型抗菌劑；以稀土為離子殺菌部分，納米tio _ 2為載體，且在稀土離子的摻入下，納米tio _ 2的光吸收波長發生紅移，進入可見光區而提高光催化能力的復合機理抗菌劑。
  14. According to the significant improvement in properties of ions and particles doped perovskite, tb and cnt doped pt materials were prepared, and the properties studied. tb and cnt doped pt powders and films were successfully prepared by sol - gel method. by differential thermal analysis ( dta ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ), x - ray diffraction ( xrd ), fluorescent analysis and dielectric constant analysis, the morphology and phase transformation, crystalline properties, fluorescent properties and dielectric properties of the materials were studied

    本研究中採用溶膠凝膠法制備了具有優良結晶性能的稀土離子tb及納米碳管摻雜的鈦酸鉛（ pt ）超細粉末和（ 100 ）取向生長的薄膜，並利用差熱分析、掃描電子顯微鏡、透射電子顯微鏡、 x射線衍射、熒光分析和介電常數等多種分析測試手段對摻雜后的pt薄膜及超細粉末的相結構、光學性能、結晶性能以及介電常數等進行了研究。
  15. 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。
  16. Some trends in the studies of cellular inorganic chemistry have been described in this review, which mainly contains the aspects of effects of metal ions including calcium ions and lanthanide ions and activated small molecule on ion channels, receptor proteins in the membrane, intracellular receptor proteins and cellular function

    摘要本文評述了當前細胞無機化學研究中的幾個方面，主要是包括鈣離子和稀土離子在內的金屬離子和活性小分子對細胞膜離子通道、膜受體蛋白、胞內受體蛋白以及對細胞功能的影響。
  17. With the increase of eu3 + concentration, however, the luminescence intensity of the eu3 + and dbm co - doped vtes gels and mtes gels decreased gradually, which indicated that it is difficult to in - situ synthesize the rare earth complexes in the vtes and mtes gels

    但在vtes凝膠和mtes凝膠基質中稀土有機配合物dbm ： eu ~ （ 3 + ）原位合成的程度較小，其熒光強度隨著摻雜稀土離子濃度的升高而降低。
  18. The ion implantation is used to optimize the material. we have discussed effects of the varing doses of er ions on the structural, optical and electrical properties of the cdte films deposited on si substrate

    利用這種技術實現了cdte多晶薄膜稀土離子鉺（ er ） 、鏑（ dy ）的高濃度摻雜改性。
  19. Ytterbium ( yb ) - doped silica fibers have a broad - gain bandwidth ( 850 ~ 1050nm ), excellent power conversion efficiency, and a broad - absorption bandwidth ( 900 ~ 1200nm ). their ability to provide amplification over the very broad wavelength range from ~ 975nm to ~ 1200nm is expected to generate increasing interest in the near future. they offer an almost ideal gain medium for the fiber lasers and fiber amplifiers that work at the wavelength around 1 m

    摻鐿石英光纖具有幾個方面的優點，如能級結構簡單，與摻er3 + 、 nd3 +等稀土離子的光纖相比，不存在對泵浦光或信號光的激發態吸收（ esa ） ，可以有更高的摻雜濃度;有較寬的吸收光譜（ 850 ~ 1050nm ） ，可以利用多種泵浦光源來設計泵浦方案;輻射光譜寬（ 900 ~ 1200nm ） ，激光輸出波長可以有很寬的可調諧范圍。
  20. The analyzing model was established, and a novel inner - cladding structure of dcf with higher performance was designed. integrated by the absorption and emission characteristics of rare - earth - ions in dcf and the ld ' s pumping principle with its relative references, the - academic model of high power dcf laser with f - p cavity was based, by using methods of numerical analysis, the high power dcf laser was simulation with good results and consistency

    結合稀土離子的吸收及發射特性及二極體泵浦固體激光原理，應用相關的理論建立了高功率f - p腔型光纖激光器的理論分析模型，利用matlab 、 mathcad ， origin等軟體，採用數值計算及分析方法，結合具體參量數值對實驗進行了模擬分析，並研究了不同特性參量對激光器性能的影響。
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