查询词典 crystal-ball

Stability of double Nd: YVO4 crystals laser′s equivalent cavity is analyzed, theory result expresses that crystal′s thermal lens generated by laser crystal absorbing pumped power will play important effects to cavity stability.

对平行平面谐振腔的等效腔进行了理论分析，结果表明激光晶体吸收泵浦光产生的热透镜效应对保持腔的稳定性起到了重要的作用。

The calculated results indicate that the dielectric function, complex reflectivity index and absorption spectra of the crystal are related to the electronic structures of the crystal.

介电函数的虚部、吸收光谱、折射率等的峰值位置存在一一对应关系，这与电子从价带到导带的跃迁吸收有关。

The area ratios of 980/1022, 980/1047,(980+1047)/1022 and 980/(1022+1047) cm^(-1) were decreased as the degree of acetification increased which indicated that acetification induced a decrease of crystallinity of starch. And the crystal structure changed from A-type to V-type. For the cross-linking of POCl3, the area ratios of 980/1022, 980/1047,(980+1047)/1022 and 980/(1022+1047) cm^(-1) were also decreased as the degree of cross-linking but the decrease was little compared to that of acetification. The result indicated that cross-linking of POCl3 had little effect on the starch crystal structure.

随着醋酸酯化取代度的增大，980/1022、980/1047、(980+1047)/1022和980/(1022+1047)的相对峰面积的比值均呈现下降趋势，表明醋酸酯化改性会导致淀粉结晶程度降低，结晶形态从A型转变为V型；随着交联度的增大，980/1022、980/1047、(980+1047)/1022和980/(1022+1047)的相对峰面积比值均呈现下降趋势，但下降程度较小，表明三氯氧磷交联对淀粉结晶结构影响不明显。

After water treated by LVEF, the scaling ions in the water will be transformed into active fine crystal nucleus which scattering in the treated water by the electric field. These crystal nucleuses have lower surface energy and greater active surface area.

水经低压电场处理后，水中成垢离子会优先在电场中析出并形成活性微晶核分散在处理水中，这些微晶核具有较高的表面能和较大的活性表面，它们更容易吸引水中的成垢离子，从而阻止在换热表面形成垢核并继续长大，从而达到阻垢的目的。

By analyzing the working characteristics of the laser crystal, the temperature field and thermal distortion field analytical expressions of Nd:GdVO4 crystals with super-beam end-pumped were obtained by the equation of aeolotropy heat conduction, which considered heat conduction aeolotropy characteristic of Nd:GdVO4 crystal.

通过激光晶体工作特点分析，考虑到Nd：GdVO4 晶体热传导各向异性的特点，采用各向异性传热的Poisson 方程，得出了超高斯光束端面泵浦Nd：GdVO4 晶体温度场以及热形变场的一般解析表达式。

And the width with unoccupied place belt of crystal of phonon of this kind of form following branch and central frequency can follow phonon crystal sheet of appearance of geometry of unit of the construction inside afterbirth change and change.

而且这种准分形声子晶体带隙的宽度及中心频率会随声子晶体单胞内结构单元几何外形的改变而改变。

In this paper, numerical calculations of magnetically induced twist effect in planar nematic liquid crystal are presented. The transmission of polarized light passing through magnetically induced twist distribution in planar nematic liquid crystal is calculated with "4-4" matrix algorithm. On the experimental side, the optical phase retardation method is used to detect the magnetically induced twist effect in planar nematic liquid crystal 5CB(4′-n-penty1-4-cyanobiphenyl) at 27℃.

对平行排列5CB(4′-n-penty1-4-cyanobinpheny1)丝状液晶在静磁场中扭曲变形做了严格的数值解，给出了严格分布情况；利用光学&4*4&矩阵算法，计算了线偏振光在严格分布下的传输情况；在实验方面，应用光学相位延迟法对平行排列5CB丝状液晶在静磁场中(温度27℃)线偏振光的通过情况进行了测量。

Photovoltaic effect ; Bi_（12）GeO_（20） crystal ; Bi_4Ge_3O_（12） crystal ; photorefractive crystal

反常光伏效应； Bi_（12）GeO_（20）晶体； Bi_4Ge_3O_（12）晶体；光折变晶体

As to the higher Landau levels, we conducted systematically calculations for the various possible ground states, such as the Laughlin liquid, the composite fermion liquid, the Wigner crystal, and the charge density wave . We find that when the Landau level index N≥2, the fractional quantum Hall states are ruled out and the CDW and Wigner crystal dominate. An exception occurs at around v=4+1/6, where the composite fermion liquid may be more energetically preferable than the CDW and the Wigner crystal states. This result provides a new explanation to the so-called re-entrant integral quantum Hall effect. In fact, the feature of isotropically metallic property at this filling is discerned from the experiment.

对于高朗道能级，我们对各种可能的基态，比如量子霍耳态，复合费米子流体，Wigner晶体，电荷密度波等，做了系统的计算，我们发现，当朗道能级N≥2时，分数量子霍耳态不再出现，Wigner晶体和电荷密度波将占主导地位，一个例外就是在ν=4+1/6附近，复合费米子流体可能出现在从Wigner晶体到电荷密度波晶体之间，该结果为上述的重进入整数量子霍耳效应现象提出了一种新的解释。

In this paper, the effect of corn silk extract on the formation of calcium oxalate crystal in healthy urines was studied by means of scanning electron microscopy, X-ray diffraction, fourier transform infrared spectroscopy, and the growth process of calcium oxalate crystal was monitored by conductivity instrument. The mechanism of the corn silk extract on the calcium oxalate crystal nucleation and growth was discussed from point of view of biomineralization.

本文采用X射线衍射、红外光谱、扫描电子显微镜等方法分析了玉米须提取液对正常人尿液中草酸钙晶体形成的影响，通过电导率法研究了草酸钙晶体生长的动力学过程，以及从生物矿化的角度对玉米须提取液影响尿液中草酸钙晶体的可能机理进行了探讨。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。