Research on the Fast Calculation Method of Wide Angle and Wide Band RCS Pattern of Scatter Based on FDTD 基于FDTD的散射体宽角度宽频带RCS快速计算方法研究
In bandwidth maximum value correspondence incidence angle foundation, when reducing incident angle, the transmittance spectrum move to long-wave band and appear hollow aperture. 在带宽最大值对应的入射角基础上,减小入射角时,分光光谱带宽向长波段漂移并且出现凹陷;
Novel Method of Narrow Band Signal Frequency and 2D Angle Estimation for Wide Band Receiver 宽带接收机的窄带信号频率和二维角度估计新方法
A Study on Mining Technology Transformation of Shorter Longwall Face in Large Inclined Angle and Complex Coal Seam with Dirt Band 含厚夹矸大倾角复杂煤层较短工作面工艺转换研究
When increasing incident angle, the transmittance spectrum move to short-wave band. 增大入射角时,分光光谱向短波段漂移。
The increase of the inclination angle of shear band and its width has an opposite influence on stress-strain curve of specimen after localization occurs. 剪切带倾角和宽度的增加对岩样的塑性性质影响正相反。
When tilt angle is very big ( more than 6 °), the band wide of reflective spectrum decrease, the most reflectivity will decrease, and present period change as tilt angle decrease. 当光栅倾斜角在6°以上时,随着倾斜角的增大,反射谱的带宽和最大反射率减小,并呈现周期性变化。
This paper indicates that grating is an effective element for measuring of wavelength of wide incident angle, wide band, pulsed laser. 预见到光栅是实时测量大视角、宽频带、脉冲激光波长的有效元件。
Larger loading rate leads to larger inclination angle of shear band in the middle of specimen. 随着加载速率的增加,岩石中部剪切带的倾角有增大的趋势。
The result is that center frequency shifts to low-frequency with increase of incident angle under oblique incidence, the band width narrows correspondingly, for both square element arrangement and regular triangle arrangement. 结果发现,无论单元是按正方形布阵还是按正三角形布阵,在电磁波斜入射时中心频率都随入射角的增大而向低频漂移,带宽都相应减小。
Double contour sign posterior to the body of vertebrae, heterogeneous signal intensity on T1WI, intravertebral fluid sign, air sign, protrusion of post superior or post inferior angle of the vertebrae body, band like high uptake are specific signs of primary osteoporotic vertebrae compression fracture. 椎体后缘双边征、T1WI椎体信号不均匀、椎体内液征、气征、椎体后上角或后下角翘起、带形浓聚为骨质疏松压缩骨折较特异性的征象。
Frequency Angle 2D Angle Estimation of Wide Frequency Band Signals with Sub Nyquist Spatio temporal Sampling 时空欠采样宽频段信号频率和二维角估计方法
Chapter 1 analyzes the characteristics of orchestration technique on his symphonies from the macroscopic angle& the establishment of band. 第一章从宏观的角度&乐队编制来分析朱先生交响曲管弦乐配器技术的特点;
Bigger inclination angle of shear band leads to bigger dissipated energy of lateral plastic deformation and smaller dissipated energy of lateral plastic deformation. 增加剪切带倾角,侧向塑性变形消耗的能量占剪切带消耗的能量的比例增加。
Dissipated energy due to axial plastic deformation is proportional to that of lateral plastic deformation and the proportional coefficient is dependent on inclination angle of shear band. 轴向塑性变形消耗的能量与侧向塑性变形消耗的能量成正比,其比例系数与剪切带倾角有关;
The axial and lateral plastic strains are concerned with the compressive stress level, the inclination angle and the thickness of shear band, the softening modulus, and the geometrical size of rock specimen. 试样的轴向塑性应变及侧向塑性轴向应变由梯度塑性理论确定,它们与应力水平、剪切带倾角及宽度、软化模量及试样的尺寸有关。
The changing range of the inclination angle of strain localization band under different v and E/ λ is discussed. 讨论了在不同泊松比、不同的E/λ条件下材料应变局部化带的倾角的变化范围。
The angle resolving method of two narrow band Gaussian noise jammers for the passive monopulse seeker is presented. 讨论了被动单脉冲导引头对窄带高斯噪声干扰源的角度分辨。
In the deep foundation of some overflow dam base, there has 0 ° angle weak band along the river, it affects the dam ′ s stability. 某溢流坝基深部顺河向有0°角软弱夹层,影响大坝稳定。
The conception of uniform acceleration blade channel equivalent cone angle and that of ununiform acceleration band area factor of common blade channel is also put forward at the same time. 同时提出了匀加速叶道的当量锥角,以及寻常叶道非匀加速区面积系数两个新概念。
Whether shear instability occurs or not, some parameters, such the length of specimen, shear elastic modulus, shear softening modulus, internal length parameter ( or the width of shear band) and the inclination angle of shear band, play important roles. 岩样系统是否将发生剪切失稳破坏,关键取决于:岩样高度、剪切弹性模量、剪切降模量、岩石材料内部长度参数及剪切带倾角。
Based upon the gradient-dependent plasticity, a model of size effect of the inclination angle of the shear band was put forward. The theoretical result compares well with experimental results. 建立了准脆性材料试件剪切带倾角尺度效应模型,得到了剪切带倾角尺度效应的解析解,且与实验结果比较相符。
The Calculation of Second-harmonic Phase Matching Angle of KN Crystal for Optical Communication Wave Band 光纤通信波段KN晶体二次谐波相位匹配角的计算
An analysis of size effect of the inclination angle of shear band and the onset, skip and stability of shear strain localization 剪切带倾角尺度律与局部化启动跳跃稳定研究
Larger inclination angle of shear band is caused by larger rigidity of platen. 压头刚性越大,剪切带倾角增加,试件脆性增强。
Real-time frequency and 2D angle estimation of wide frequency band signals with uniform circular arrays 用均匀圆阵实现宽频段来波信号频率和二维角估计
It has been confirmed that sufficient structural strength is one of the conditions for the formation of shear band for structured clay. Inclination angle of the shear band is not in accordance with Roscoe ′ s theory. 结果表明:土体具有足够的结构强度是剪切带形成的条件之一,剪切带的倾角与Roscoe理论不相符;
Angle based localization with applications to narrow band and stable signal is sensitive to source model and sensor model, and due to heavy burden in computation, it is not fit for speaker localization. 基于角度估计的定位算法对源和传感器模型有较大依赖性,多用于窄带、平稳信号的定位估计,且由于其运算量较大,并不适合说话人定位的实际应用。
In normal, the SAR image varying with the observation angle or radar band width, as a result large number of SAR imaging under different condition was used for better identification. SAR图像会随着观测视角、雷达带宽等变化而变化,为实现高识别率,通常需要大量的不同成像条件下SAR图像。
Thirdly, phase angle with the medium frequency band were used to evaluate protection performance under different supporting systems. 用中频段的相位角评价了各种不同配套体系下三涂层的防护性能。