The threshold gains of different longitudinal modes are modulated by optical feedback.
光回馈调制了激光器不同纵模的阈值增益,阈值增益最低的纵模获得振荡。
The numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain a.
本工作以矢量场模型出发，对具有诱人应用前景的柱形垂直腔面发射结构(VCSEL)的微腔半导体激光器(MCSL)进行了理论分析，建立了用于分析方柱形和圆柱形结构具有氧化孔径层的激光器的模式特性的理论模型；对圆柱形结构情况进行了数值模拟，得到了振荡波长、阈值增益随激光器内外半径、Bragg反射镜层折射率、周期数以及氧化孔径层厚度、位置和氧化物折射率的详细变化规律；为使理论计算更接近实际，将外加金属包壳视为非理想导体，或将金属包壳与激光器结构隔开，分别对这两种情况下的结果进行了讨论。
Second,based on the determination criterion of eye location established by the prior knowledge of geometrical facial features,the optimal threshold to separate the two eyes blocks can be found through progressive thresholding.
首先对原灰度图像做边缘灰度加强;然后结合根据人脸几何特征先验知识建立的人眼位置判定准则,在分割阈值递增的过程中,寻找能分割出双眼眼块的最优分割阈值;最后用两维相关系数作为对称相似度来检验检测出的双眼的真实性,并利用找到的双眼图像垂直方向的灰度积分投影,精确定位瞳孔中心。
Can't set the specified value for the threshold increment. Please enter an integer percentage (0 - 100) and try again.
无法为阈值增量设置特定数值。请输入一个整数百分比(0-100)，再试一次。
Any increment above this threshold represents profit.
任何高于此阈值的增产量即为利润。
parametric oscillator threshold condition
光参量振荡阈值条件
An Empirical Formula for Calculating Threshold Dose of Film Enhanced Adhesion Induced by Fast Heavy Ion Irradiation
一个计算快重离子辐照引起薄膜附着增强剂量阈值的实验公式
Ablation threshold measurement and Absorption characteristic analysis of two fiber reinforced composites irradiated by CW laser
两种纤维增强复合材料连续激光烧蚀阈值测量及吸收特性分析
The results show that, for the case of detuning, both the second threshold and the critical frequency are always increased with the increasing of the detuning parameter.
结果表明,在失谐情形下,第二阈值和临界自脉冲频率都随失谐参量的增大而增大。
The gain is now well above the (lowered) oscillation threshold.
此时，增益大大超过（降低了的）振荡阈值。
Image Adaptive Threshold Denoising Based on Edge Enhancement;
基于边缘增强的自适应阈值图像去噪
Vector quantization based on the dynamic threshold of speaker recognition
基于动态阈值失量量化的说话人识别
The Research of Publishing Media Integration from the View of the Information Value-added;
内容价值增值视阈下的出版媒介融合研究
Performance Analysis of Threshold Denoising Via Different Kinds of Mother Wavelets and Wavelet-Thresholding Denoising Method Based on Energy Cell;
小波阈值去噪的性能分析及基于能量元的小波阈值去噪方法研究
Alcohol and cirrhosis: Dose-response or threshold effect?
酒精与肝硬化:剂量关系抑或阈值效应?
Study on the losses of wheat yield and the ELT to wheat root rot
小麦根腐病产量损失及经济阈值研究
Preparation and Study of Antireflection Coatings with Higher Laser Induced Damage Threshold on the LBO Crystal;
LBO晶体表面高激光损伤阈值增透膜的研制
The Threshold Effect of China s Urban-Rural Income Inequality on Real Economic Growth;
中国城乡收入差距对实际经济增长的阈值效应
Wavelet Thresholding for Speech Enhancement Based on Adaptive Noise Estimation
基于自适应噪声估计的小波阈值语音增强
a function that takes the value 1 if a specified function of the arguments exceeds a given threshold and 0 otherwise.
如果指定函数的量超过给定的阈和函数值是。
Quantitative Analysis of Verb-Verb Collocation Evaluation System Threshold
动词与动词搭配评价体系阈值定量分析
