yb 中文意思是什麼

yb 解釋
Y. B. , Yb = year-book. Yb = 【化學】ytterbium.
  1. Each chemic and physical characteristics of phosphate glass is discribed, the compounding and fabrication of er / yb co - doped phosphate gain material are argued

    對磷酸鹽玻璃的各種成份進行了測試,然後通過熔制得到鉺鐿共摻磷酸鹽增益玻璃材料。
  2. Along with developing of the commercial availability of high - power ingaas laser diode in the 1990s, the advantage of yb : yag suitable for the ld pumped high power solid - state lasers was realized

    對ld泵浦的高功率yb : yag固體激光器的研究已成為當前熱點,並將其視為發展高效、高功率固體激光器的一個主要方向。
  3. Then after analysising each characteristics of phosphate glass material, the fiber rod - in - tube by invaginating core rod, inside cladding and outside cladding is used to fabricate the er / yb phosphate glass fiber successfully by polishing and vacuumizing fiber rod - in - tube. finally some techniques, such as cladding pump, prism coupling pump and fusing pump are used to measure the gain of fiber amplifiers

    最後對拉制出的光纖提出了包層泵浦、棱鏡耦合泵浦和熔接耦合泵浦三種可行的增益和傳輸特性測試測方案,並針對鉺鐿共摻磷酸鹽玻璃光纖的特性,指出了熔接耦合是測試增益和傳輸特性的最佳方案。
  4. Microstructures and photoluminescence of er yb co - doped zno films

    薄膜光致熒光特性的影響
  5. Yb : don ' t worry, jenny. we will go home

    海爾弟:小妹妹,你別著急,會有辦法的。
  6. Yb : because dolphins are friends of human

    海爾弟弟:因為海豚是人類的朋友啊!
  7. Study on growth and optical properties of yb yab crystal

    晶體的生長及性質
  8. Growth and crack analysis of yb : yag laser crystal

    激光晶體生長與開裂分析
  9. High repetition rate femtosecond yb - doped fiber amplifier

    高重復頻率飛秒摻鐿光纖放大器
  10. Yb : errr … this might be a secret forever

    弟:啊!這也許永遠是個秘密吧?
  11. Yb : but this is our last chance ! go

    海爾弟弟:這是最後的機會了。嘿!
  12. Yb : look, here we are now. the easter island

    海爾弟弟:快看,我們到了,這就是復活節島了。
  13. Yb : hey, look at that ? what is it

    海爾弟弟:咦?看哪!那是什麼?
  14. Ignored the amplified spontaneous emission ( ase ) and esa, rate equations and propagations equations for continuous wave er ~ ( 3 + ) / yb ~ ( 3 + ) co - doped phosphate glass waveguide laser were calculated using runge - kutta algorithm. propagation characteristics of signal and pump light in the waveguide were analyzed too

    利用fd - bpm法,對在平板波導以及波導折射率為漸變折射率分佈的溝道波導和掩埋型波導內傳播的波長為980nm的泵浦光和1540nm的信號光的光場進行了模擬。
  15. 1 lanthanide hydrides ( m = la, nd, sm, dy and yb ) can be prepared easily by the direct hydrogenation of lanthanide metals catalyzed by ticl4 in tetrahydrofunan ( thf ) under normal pressure. the rate of hydrogenation decreased with increasing atomic number of lanthanides. transmission electron micrographs showed that the resulted lanthanide hydrides were in the form of nanoparticles with an average primary particle size around 20 - 40 nm

    本論文首次提出一種在溫和條件下催化合成納米尺寸的鑭系金屬氫化物的方法,介紹在常溫常壓下,鑭、釹、釤、鏑、鐿五種鑭系金屬在四氫呋喃( thf )溶劑中,催化劑作用下與氫氣直接化合形成相應的納米尺寸的鑭系金屬氫化物。
  16. As a result, yb - doped crystals languished in the shadow of nd : yag and other laser media for several decades waiting for high - power spectrally bright pump sources

    上世紀90年代以來,隨著ingaas大功率激光二極體的不斷發展, yb : yag晶體具備適合ld泵浦的優點重新被人們認識。
  17. We firstly summarize the development of yb - doped fiber lasers, pumping methods and the applications of high - power fiber lasers. 2. considering the scattering loss, we deduce the relationships between laser performances of yb - doped double - clad fiber laser and parameters of laser cavity from the steady state rate equations, numerically analysis the changes of laser performances, such as laser power with the parameters of laser cavity, including output mirror reflectivity, optimum length of double clad fiber

    研究主要內容包括如下幾個方面:一、首先對摻鐿光纖及摻鐿光纖激光器的發展狀況、包層泵浦技術和高功率光纖激光器的應用等進行了綜述;二、在前人對高功率雙包層光纖激光器的理論基礎上,在考慮了光纖散射損耗因子的情況對光纖激光器理論進行了推導,給出了準解析解,進一步完善了理論分析。
  18. Such features can be ascribed to lower degrees of partial melting and greater melting depths. in particular, the decoupling between the lowest nag and highest tig tends to indicate residual jadeite during melting process so that na behaved as a moderately compatible element to lower the naao concentration in these rocks. this is consistent with the ree patterns in the high - ti diabases that have the highest ( gd / yb ) cn ratios than other two groups, which suggest a more important role of residual garnet in generation of the primary magmas

    運用mgo = 8進行標準化,結合巖石成因理論討論了三大系列輝綠巖的形成相對深度和熔融比例,其中高ti系列的原始巖漿形成深度大,熔融比例小,源區相對最為富集易熔組分;低ti系列的熔融深度最淺,比例最大,源區相對虧損易熔組分;過渡ti系列則介於前兩大系列之間。
  19. Several factors in influencing the capabilities of er ~ ( 3 + ) / yb ~ ( 3 + ) co - doped phosphate glass waveguide laser were introduced

    其次論述了影響鉺鐿共摻磷酸鹽玻璃光波導激光器性能的幾個主要因素。
  20. L yb - 7442 four - trace double - track recording and playing magnetic heads has won grade two award for science and technology advancement of shenzhen city

    Rp - 7442四跡雙道錄放磁頭獲得深圳市科學技術進步二等獎
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