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Using the modified analytical embedded atom method, the physical properties of D03 type Fe3Al alloy, including the lattice constant, formation heat, elastic constants, phonon dispersion curves, density of states, molar heat capacity at constant volume, Debye temperature and thermal expansion, were calculated. The calculated results were compared with the experimental data and those obtained by others.

摘 要：应用改进分析型嵌入原子模型，系统地计算了D03 结构Fe3Al合金的晶格动力学性能，包括晶格常数、形成热、弹性常数、声子谱、态密度、摩尔定容热容、德拜温度和热膨胀系数等，并将计算结果与已有实验数据和其他理论计算结果进行了比较。

It is concluded that if the monatomic model of Chapter 3 is used the pair potential constructed by the former method cannot predict correct heats of solution, while the pair potential constructed by the latter method can predict the lattice constants, the bulk moduli and the cohesive energies of the Ll〓 superstructures formed by the two kinds of atoms within acceptable accuracy.

推广到合金的情况，提出了由某个二元超结构的结合能曲线和由稀极限溶解热反演埋入原子法的合金对势V〓的两种不同的方法。

This sequence can effectively remove the effect of magnetic field inhomogeneity and suppress the solvent signal. It can recover the spectral information such as chemical shifts, coupling constants, multiplet patterns, and relative peak areas in inhomogeneous fields.

本文提出了一种基于分子间多量子相干的有效消除磁场不均匀性和抑制溶剂峰的脉冲序列，利用该序列可在不均匀场下恢复化学位移、J偶合裂分和相对峰面积等谱学信息。

It is due to the fact that the dual fluorescence emission of excited naphthol group had different quenching constants by ctDNA.

实验结果表明：DNA的引入，对化合物的两种发光峰的猝灭有着不同的速度常数。

Use the const directive only on natural constants such as the number of days of the week.

只对自然存在的数字，比如一个星期的天数等使用 const 关键字。

Voltage method to determine the elastic constants of nematic liquid crystal s is discussed.

提出了一种更为准确的测量向列相液晶展曲、弯曲弹性常数的C-V方法。

Voltage method to determine the elastic constants of nematic liquid crystals is discussed.

提出了一种更为准确的测量向列相液晶展曲、弯曲弹性常数的C-V方法。

The binding constants and the electrochemicalparameters of NMB at the bare GCE, ssDNA/GCE and dsDNA/GCE were calculated,respectively.

研究了NMB在DNA修饰电极表面的富集和解析。

For plates with same thickness and material constants but different aspect ratios, we have studied how the distance from the nodal line of the first bending mode to plate center and the size of transducer affect the depths and locations of the first dips in mid frequency ranges of the plates' SPL spectra.

讨论在振动板厚度、材料常数固定不变的情形下，藉由改变振动板长？i比及激振器尺寸，来找出第一个弯曲模态图中节线到振动板中心距离与中音谷声压落差值、位置之间的关系。

A simple method to determine the optical constants and physical thickness are presented.

本文提出了一种从单透过率测试曲线求解薄膜光学常数和厚度的方法。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。