查询词典 crystal lattice

The modal characteristics of dual core photonic crystal fibers are analyzed by a full vector supercell lattice overlapping model.

应用全矢量超格子叠加模型分析了双芯光子晶体光纤的模式特征。

This paper deals with the intracavity interaction of lightfield with anharmonic lattice vibration of ionic crystal.

处理了光场与离子晶体的非简谐性振动之间的相互作用问题。

The results show that the technical parameters and the concentration of sodium molybdate have obvious effect on the composition of the alloy. The crystal grain size is from 6.2 to 12.7 nm and changes with current density, temperature and the pH value of the electrolyte.The crystalline growth of the alloy accords with the model of three-dimensional growth. The surface morphology is mainly determined by the rate competitions between the growing direction of vertical surface and the expanding direction along the surface towards circumambient. The results of the X-ray data show the presence of the multiphase containing solid solution and intermetallic compound in the deposits. The deposit phases alter from the FeNi and FeMo solid solution to the FeNi and MoNi4structure at 3 A/dm2. The deposits internal stress increases linearly with the decrease of the grain size. The lattice parameter of the deposits are slightly distorted

结果表明：工艺条件和钼酸钠浓度对合金组成的影响较大；所得合金晶粒尺寸为6.2~12.7 nm，并随电流密度、温度和电镀液的pH值的改变而变化；合金的晶体生长符合晶核三维生长模型，镀层表面形貌由平行和垂直于基体的生长速度的相对大小决定；镀层物相为固溶体和金属间化合物的多相结构，当电流密度为3 A/dm2时，镀层物相由FeNi和FeMo固溶相转化为FeNi和

A 156cm–1 red-shift is gained theoretically to demonstrate the presence of non-neglectable weak H-bonds and result in the discovery of the rarely reported trimeric H-bond, which consists of three independent hydroxyl donors and only one Cl– acceptor, in the field of crystal materials. We explained the relative weakness of this kind of hydrogen bond which may have a critical effect on the lattice symmetry and magnetic structure.

本研究据信为首次报道其振动光谱测量、解析结果，通过缜密解析意外发现了很少有人报道的三聚氢键的存在，为进一步理解其量子磁学特性提供的一条线索，同时也为验证难做的中子散射实验解析出来的晶体结构提供了很好的帮助。

Then GaN nanostructured thin films comprised of regular hexagonal crystal grains have been successfully synthesized by ammoniating Ga2O3 films at the temperature of 850℃ for 15 rain in a quartz tube. X -ray diffraction reveals that the synthesized GaN is of a hexagonal wurtzite structure with lattice constants a =0.318 nm and c =0.518 nm.

然后将硅基Ga2O3置于管武石英炉中，在850℃的氨化温度下氨化15min后，成功制备出GaN薄膜，该薄膜由正六边形的晶粒组成。X射线衍射表明GaN具有六方纤锌矿结构，晶格常数为a=0.318nm和c=0.518nm.X射线光电子能谱的测试确定了样品中Ga-N键的形成，并且Ga和N的化学计量比为1：1。

In this paper, their spectra of lattice vibration have been studied by Raman and Infrared Reflection technique, and the characteristics of the crystal structures as well as the case of binding in these crystals were analysed, and the non-linearities have been qualitatively illustrated.

本文用喇曼光谱和红外反射谱方法研究了它们的晶格振动光谱，分析了其晶体结构特点和晶体中分子的键合情况，并定性说明了其非线性光学性能。

It was found that as the dopant amount of Fe3+ ions is up to 5.7mol%, the cell parameter and cell volume increase obviously, the sharing edges of octahedra and anionic fine structures of crystal plane (110) disappear gradually, and also the mean-square displacement of anions and lattice energy enhance abruptly.

结果表明，当掺杂量达5.7mol%时，晶胞参数a与晶胞体积明显增大，八面体共棱部分消失，(110)晶面中的阴离子精细结构逐渐消失，阴离子均方位移与体系能量也明显增大。

The results show that the nanosized tin is β-tin and the tin crystal is a tetragonal lattice structure, the particle size of nanosized tin prepared in the polyglycol solution is smaller than that in the water, and the particles size is smaller than 100 nm.

结果表明，所制备的纳米锡为β-锡，四方晶系，粒度小于100 nm，聚乙二醇溶液中得到纳米锡的粒度比水溶液中小。

The results indicated that the distribution of the polymer and liquid crystal in the grating was periodic on the two-dimensional space. The diffraction pattern was regulated for space lattice and the diffraction efficiency was electrically switchable.

实验结果表明，光栅中的聚合物和液晶在二维空间上呈周期性分布，其衍射图样为空间点阵且衍射效率可以利用电场进行调节。

The change of lattice parameter with changing x was determine and explained from the point of view of crystal chem.

测定了晶胞参数随着取代量x的变化，并从结构和结晶化学的角度进行解释。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。