Using the instrument for the transmission loss of single mode of winding birefringence optical fiber, the spectrogram of loss and the graph of mode density are obtained.

利用检测单模双折射光纤弯曲传输损耗装置测绘了光纤的弯曲损耗图及光纤弯曲传输模式图。

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The subsystems' mode density is calculated by empirical formulas. Finally, SEA is adopted to predict self-noise in sonar platform area and satisfying results are obtained.

采用经验公式计算各子系统模态密度，最后利用统计能量法来预报潜艇首部声呐平台区自噪声，得到了令人满意的结果。

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Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density.

通过原子上能级与光子频率带隙边缘的相对位置或者光子态密度，可以抑制或增强原子的自发辐射。

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Cube offers a choice of print mode fill density: Lite, Medium and Solid in both PLA and ABS plastics with optional easy, breakaway supports for the most complex prints.

ENGADGET: 3D Systems second-gen Cube 3D printer boasts faster prints and more materials