crystal parameter 中文意思是什麼

crystal parameter 解釋
晶格參數
  • crystal : n 1 結晶，（結）晶體；晶粒；水晶（＝rock crystal）；石英。2 【無線電】晶體。3 結晶玻璃；雕玻璃；...
  • parameter : n. 1. 【數學】參數，變數；參詞；參項。2. 【物理學】參量；（結晶體的）標軸。3. 〈廢語〉【天文學】通徑。vt. -ize 使參數化。
  1. The results indicate that in niobate glasses, as the concentration of nb2o5 increases, the covalence becomes strong, the symmetry becomes low and the electron - phonon coupling becomes strong, thus the lifetimes become short, the nonradiative transition processes and the temperature - quenching become strong and the value of crystal field parameter b20 becomes small

    （ 6 ）研究了妮硅與妮磷系列玻璃發光特性與組份的關系，發現隨著nbzos濃度的增加， eu一o鍵共價性增強，局域環境對稱性降低，電一聲子禍合增強從而導致sd 。
  2. We obtained the optimized parameter of reflective liquid crystal display by means of parameter space representation and got the so called mtn cell

    本文應用參數空間法選定單偏振片反射式液晶顯示的優化參數，得到所謂mtn盒。
  3. Firstly, we analyze the character of nd : yag, bbo and lbo, for nd : yag crystal and select the nd : yag as the gain medium and lbo as doubling - frequency crystal. ln the theory, analyzing the parameter of the gain medium length, the ratio of the pump - and laser - beam waists. based on the above analysis, we design the resonance cavity

    首先，我們對增益介質的性質和非線性晶體bbo和lbo的一些性質進行了比較，選取nd ： yag作為增益介質， lbo作為倍頻晶體。理論上分析了激光器設計中的一些參數值，如增益介質長度、模式交疊率、最佳倍頻條件，並根據理論分析結果設計了諧振腔。
  4. In the lclv, the most important parameter, switching ratio of the lclv, is analyzed. it is mainly influenced by the dark - conductivity, ratio of light - to dark - conductivity, thickness of the photoconductor and the thickness of the liquid crystal. it is concluded that the switching ratio can be improved by matching the thickness of the liquid crystal and the photoconductpr, and the proper change region of the light conductivity of the photoconductor

    在電學匹配方面，我們對光電導材料的暗態電阻、亮暗電導比、厚度以及液晶的厚度等對光閥開關比的影響進行了分析，認為液晶光閥開關能力的提高很大程度上取決于光電導層和液晶層的厚度匹配，以及光電導層的電導變化的區域位置。
  5. In this paper, pure and doped ktp crystals were grown from the flux using a top - seeded method, and special technique have been used to lower the electrical conductivity to three orders of magnitude than common flux ktp, the values is up to 10 - 10 ( cm ) - 1, this overcame the shortcoming that common flux ktp cannot be used in e - o application field because of having higher electrical conductivity. the growth condition, doped elements and annealing technology were investigated. single crystals of ktp with high quality and big z - cut cross section were obtained by optimizing the parameter of crystal growth

    本實驗採用頂部籽晶熔劑法生長了純的以及不同摻雜的ktp晶體，用特殊工藝處理技術將普通熔劑法ktp的電導率降低了三個數量級，達到了10 ~ （ - 10 ） （ cm ） ~ （ - 1 ） ，解決了普通熔劑法ktp晶體由於離子電導率太大而無法用於電光應用領域的困難；對ktp晶體的生長條件、摻雜元素以及退火工藝等進行了研究，通過優化生長工藝技術參數，突破了工藝技術生長難關，得到了高光學均勻性、具有大z切面的ktp單晶。
  6. The lattice parameter of obtained ultrafine ni powders is 0. 35288nm which is larger than that of the perfect ni single crystal

    Xrd精確測定所得超細鎳粉的晶格常數為a = 0 . 35288nm ，比完整ni單晶的晶格常數大，晶格發生了膨脹。
  7. After bamgal10o17 doped with sr, ca, the cell volume of each doped phosphors is shrunk and the crystal parameter c is decreased

    摻雜少量的sr ， ca后，所得的熒光粉的晶格參數c變小，晶胞體積也隨之變小。
  8. Lanio3 ( lno ), as a desirable candidate for electrode materials, has a pseudo - cubic perovskite crystal structure with a lattice parameter of 3. 84

    作為一種合適的侯選電極材料， lanio3 （ lno ）的晶體結構是一種贗立方的鈣鈦礦結構。
  9. Parameter space representation which based on the stationary jones matrix of liquid crystal is a method that can decide the state of the liquid crystal cell

    參數空間法（ parameterspacerepresentation ）是基於液晶盒關態瓊斯矩陣作出的一種確定液晶工作狀態的方法。
  10. Considering the mass balance law for solute, and combining with the populance balance model and the mccabe ' s l law, a linear crystal growth rate model was presented for potassium nitrate aqueous system. the test variables of both the liquid and solid for kinetic parameter estimations were given on this model, and the experimental apparatus were also set up

    基於粒數衡算模型，以kno _ 3 - h _ 2o為模型研究體系，根據結晶過程中溶質質量守恆和mccabe定律，首先建立了晶體線性生長動力學模型，並確定出動力學參數估計所需要表徵的固液兩相物理參數，進而建立了實驗表徵方法和測定裝置。
  11. This thesis focuses on the study of the layered lithium nickel - based oxides as catho de materials lithium - ion batteries, the main aspects follow : 1 study on the synthesis and properties of linixco1 - xo2 by the sol - gel method compared with solid - state method, sol - gel method enjoys the advantage of lower calcining temperature and small uniform particle size of products. after the xrd measurement, it was shown that the single - phase layered compound can be prepared in sintering temperature of 750 for 6 ~ 8 hours. the sintering temperature, the properties and the amounts of doping materials can all affect the product ' s phase, and its structure ( lattice parameter, crystal phase distance )

    本論文的研究工作主要集中在作為鋰離子電池正極材料的層狀鋰鎳基氧化物上，包括以下幾個方面： 1溶膠凝膠法（ sol - gel ）合成lini _ xco _ （ 1 - x ） o _ 2的研究與固相合成法相比，溶膠凝膠法合成lini _ xco _ （ 1 - x ） o _ 2煅燒溫度低，產物顆粒均勻一致，經過xrd的測試過后，結果表明750下燒結6 8小時，即可得到單相產物；燒結溫度，摻雜劑的種類及摻雜劑量均對產物物相的形成產生影響，並對產物的結構產生影響。
  12. We analyze the generation of external cavity frequency - doubling with knbo3 crystal theoretically. in order to get the second - order nonlinear conversion from 858nm to 429nm with knbo3, we use non - critical type - i phase - matching to avoid the walk - off effect the corresponding optimum focusing condition is as followings : double refraction parameter b = 0, focus parameter = 2. 84, optimum phase mismatch parameter = 0. 574. based on the theoretical analysis and numerical calculations, we obtain the ideal nonlinear conversion coefficient about 1. 45 % / w with crystal length of 7mm and 2. 07 % / w with crystal length of 10mm at the phase - matching temperature around 23. 50c

    根據對其倍頻原理及性能的分析討論，在用該晶體完成波長從858nm到429nm的二階非線性轉換時，採用非臨界相位匹配條件（此時無離散效應，對應的雙折射參數b = 0 ，共焦長度為= 2 . 84 ，最佳相位失配因子為= 0 . 574 ） ，在相位匹配溫度約為23 . 5時，理論上通過計算得到理想情況下非線性轉換系數約為1 . 45 / w （長度為7mm ） ， 2 . 07 / w （長度為10mm ） 。
  13. By solving the christoffel equation, the relationship between velocity and angles is obtained, and the ultrasonic inverse velocity curve is illustrated. the dixon equations of ao diffraction on the xoz and yoz planes in ln crystal have been applied to obtain the geometric relationships of acousto - optic interaction. therefore, the beam steering theory is proved to be a possible way to do the optimum design of ln anisotropic acousto - optic deflector. the detailed parameter data and the figures on the xoz and yoz planes with the angle of incidence of - 5 degree are shown up, which will contribute to the desigh of aod

    對鈮酸鋰超聲跟蹤反常聲光偏轉器進行優化設計，經研究計算得到了分別在入射角取- 5o時xoz與yoz工作平面中正負一級衍射中分別使用快切變波與慢切變波的情況下，優化設計鈮酸鋰超聲跟蹤反常聲光偏轉器的設計參數，對聲光偏轉器生產設計有實際參考意義。
  14. The dispersive characteristic of sws is a very important parameter of the rbwo and rtwt, other parameters such as the phase velocity, group velocity, coupling impedance can be derived from the linear dispersion relation. recently, the photonic crystal have attracted many attentions of the scientists, which has become a hot point of the research, it is also a ps

    周期慢波結構色散特性是研究高功率微波器件的一個重要參量，其他重要特性如相速、群速、耦合阻抗等參量都可以從色散關系衍生出來，準確，快速獲得周期電磁結構的色散特性就顯得尤為重要。
  15. Beam steering characteristics of liquid crystal optical phased array ( lcopa ) is an important index evaluating its optical performance, and beam steering angle is the direct parameter indicating this

    液晶光學相陣列的光束偏轉特性是評價其光學特性的一項重要指標，而光束偏轉角是直接評價這一特性的物理參數。
  16. After processing, the cell parameter, transparency, optical damage threshold of ktp crystal have been measured as well as the distribution coefficient of doped elements. the results showed that, after dopping, the cell parameter and transparency of ktp crystal changed little ; optical damage threshold increased three orders of magnitude than the common flux ktp, meanwhile, optical homogeneity decresed a little

    將ktp晶體加工后測試了它們的晶胞參數、透過率、光損傷閾值、摻雜元素分凝系數等，結果表明，經過摻雜的ktp晶體晶胞參數、透過率等基本沒有變化，光學均勻性稍有下降，而激光損傷閾值卻提高了3倍。
  17. In this thesis, we used the q - switched nd : yag laser pulse focused by lens to pump the cr ~ ( 4 + ) : mg _ 2sio _ 4 crystal, with the pump laser pulse duration and energy of 30ns and 50 mj separately, and got the laser pulse with center wavelength, pulse duration and energy of 1. 22 m, 8. 2 ns and 10 mj on the best work condition. on the base of zhangguowei s approximation about gain - switching and the parameter of cr ~ ( 4 + ) : mg _ 2sio _ 4 crystal, we calculated the time characteristics of cr ~ ( 4 + ) : mg _ 2sio _ 4 laser pulse with rate equation by numerical method, obtained the conclusion that the laser pulse duration is only related to the pump energy and cavity length : the larger the pump energy is, the narrower the pulse duration is ; the longer the cavity is, the wider the

    本論文採用調qnd : yag脈沖激光通過透鏡聚焦后縱向抽運cr ~ （ 4 + ） : mg _ 2sio _ 4晶體，抽運光脈沖寬度為30ns 、能量為50mj ，在較佳工作條件下得到了中心波長為1 . 22 m 、脈寬為8 . 2ns 、能量為10mj的激光脈沖;並在張國威分析增益開關時間特性的近似法基礎上，結合實際的cr ~ （ 4 + ） : mg _ 2sio _ 4激光器的相關參數，從速率方程出發，用數值計算的方法更為精確的模擬了cr ~ （ 4 + ） : mg _ 2sio _ 4激光器輸出激光脈沖的時間特性，得出了激光脈寬只與抽運能量、腔長有關的結論，即抽運能量愈大，脈寬越窄;腔長越長，脈寬則愈寬。
  18. On the other hand, the reflective liquid crystal working mode is calculated. according to the switching ability of the lclv, a suitable working point was selected in the liquid crystal parameter space

    在液晶工作模式方面，計算了反射式液晶器件的參數空間，並選擇了適合cds - cdse光閥的液晶工作模式。
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