Based on the force constant model we calculate the phonon dispersion relations of single wall BC_3 nanotubes with different diameters and chiralities.

引用石墨经验力常数计算碳纳米管声子色散关系时 ，必须处理由二维平面卷曲形成三维实体纳米管所引入的问题 。

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According to the change pattern of some parameters in metal cutting processes, this paper proposes for the first time a new time series analysis model-Autoregressive Constant model ARC (2).

本文根据切削过程中一些参数的变化规律，从理论上首次提出了一种新的时间序列分析模型，即常系数固定价ARC(2)模型。

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According to the ITU-R turbulance structure constant model, the SNR and BER varied with the altitude at different wavelengths and different zenith angles are simulated numerically with FORTRAN.

依据ITU-R公布的随高度变化的大气结构常数模型，用FORTRAN对信噪比和误码率在 不同波长与不同天顶角的条件下随高度的变化情况进行了数值模拟。

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The target-date model and age-in-bonds model reduce equity exposure in the later years while the flight path model holds risk constant.

FORBES: A Fighter Pilot's View Of Age-Based Asset Allocation

The Mediterranean diet is characterized by a nutritional model that has remained constant over time and space, consisting mainly of olive oil, cereals, fresh or dried fruit and vegetables, a moderate amount of fish, dairy and meat, and many condiments and spices, all accompanied by wine or infusions, always respecting beliefs of each community.

UNESCO: Culture

He remained a model citizen throughout his frustrating year in New York and answered the constant barrage of questions about his role and mindset all season.

NPR: Tebow Time In New York Over After Jets Cut QB