The phase conjugate reflectivity and its response time were also measured as a function of the Argon-ion laser wavelengths. 测量了自泵浦位相共轭反射率,响应时间和氩离子激光波长的关系。
By studying the changes of their conjugate intensity, especially the response time differences of their grating build up with different incident light intensities, it was found that the conjugate light produced by the non single intensity distribution light in far field can be separated in time sequence. 通过研究不同入射强度比的两种光产生的相位共轭光强变化,特别是它们各自建立相位共轭光栅的响应时间差别,发现非单一强度分布的远场光产生的相位共轭光在时序上能分离。
A series of experiments on conjugate shear angles have been systematically carried out with clay models. The data and curves obtained are given in the paper to show the effects of material property. limit stress and time on conjugate shear angle. 笔者采用粘土材料,对共轭剪切角进行了系统的实验分析,得到了一系列实验数据与实验曲线,以反映物性、极限应力及时间对共轭剪切角的影响。
Employing the double doped Zn, Fe: LiNbO 3 crystal as a hologram storage medium, and the Cu: KNSBN crystal as a self pump phase conjugate mirror, all optical real time image edge enhancement has been realized. 用双掺杂Zn:Fe:LiNbO3晶体作全息记录介质,另一块Cu:KNSBN晶体作自泵浦位相共轭反射镜,实现了全光学实时图象边缘增强。
The resonance light scattering ( RLS) spectra of atrazine-calf thymus DNA ( ctDNA) conjugate and the determination of trace DNA by a resonance light scattering technique with atrazine as a probe are reported for the first time. 首次报道了阿特拉津与ctDNA作用的共振光散射光谱(RLS)特征和利用小分子农药阿特拉津作为探针测定痕量脱氧核糖核酸的方法。
The conjugate gradient method ( CGM) and fast Fourier transform ( FFT) technique are used to reduce the necessary memory and CPU time. 在求解过程中应用共轭梯度法(CGM)和快速傅立叶变换(FFT)相结合的方法降低所需计算机内存和CPU时间。
The NW and NE trending fault zones shape a conjugate pattern in this region, which represents a developing conjugate shear fracture system in the crust under the stress field since neotectonic time. 与北东向断裂带呈共轭关系,是在先存构造基础上于新构造应力场作用下正在发育的一套地壳共轭剪切破裂系统。
Abstract The concept and its applications in optical holography of conjugate wave arepresented, pointing out that the right comprehension and grasp of conjugate wave are very im-potant for making a hologram with high quality. Key wards conjugate; time reversal; 本文介绍共轭波的概念、获得方法及其在光学全息中的应用,指出正确地理解和掌握共轭波的概念对于制作一张优质的全息图是非常重要的。
According to the idea of "combining the inorganic distorted polyhedron with asymmetric conjugate organic molecules", preliminary exploratory results of nonlinear optical material of organometallic complex are reported for the first time. 本文从无机畸变多面体与不对称共轭有机分子相结合的基本设想出发,首次报道了对金属有机络合物型非线性光学材料的初步探索结果;
The properties of the grown crystal, such as exponential gain coefficient, magnifying power, diffraction efficiency, phase conjugate reflectivity and response time were tested. 测试了晶体的放大率,指数增益系数,衍射效率相位共轭反射率和响应时间;
In the case of high pressure, there is a relationship between conjugate degree and reaction time. 在相同的高压条件下,样品的共辆程度与反应时间存在着一定的关系。
On the basis of the analysis of the hypothesis in surface-consistent model, the conjugate gradient method is applied to decompose the seismic record in time domain in terms of the surface-consistent precondition and model. 通过对地表一致性数学物理模型的前提条件进行剖析,合理地确定了反射振幅一致性校正模型,并依据该模型及其实现条件提出使用共轭梯度方法在时间域对地震记录进行谱分解处理。
The real-time obtainment of the component of projection matrix and the substitution of constant step for optimal step in the one-dimension search in conjugate gradient are adopted to ensure the equality of reconstructed image from incomplete projections and shorten the reconstruction time simultaneously. 通过实时获取投影矩阵分量,以固定步长替代共轭梯度法中一维搜索最优迭代步长,在确保质量的同时缩短重建时间。
PR conjugate gradient method is one of the efficient methods for solving large scale unconstrained optimization problems, however, its global convergence has not been solved for a long time. PR共轭梯度法是求解大型无约束优化问题的有效算法之一,但是算法的全局收敛性在理论上一直没有得到解决。
The results show that the weighted regularized conjugate gradient inversion algorithm can both guarantee the stable inversion convergence, and could be suitable for undulate topography inversion at the same time, to achieve satisfactory results. 结果表明,加权正则化共轭梯度反演算法既保证了反演稳定收敛又能适合起伏地形反演,达到了满意的效果。
Excessive input pump power leads to the decline of conversion efficiency of the conjugate light and transmittance of signal light. ( 3) The research discusses the time delay characteristics of slow light under steady state conditions according to nearly degenerate four-wave mixing effect of SOA. 根据行波SOA的四波混频效应,讨论了稳态条件下的慢光时延特性。
To solve the linear equation system in numerical integrating, we employ relaxation method and only a few iterations are needed. This method is more efficient than conjugate gradient one, and can be computed in O ( n) time complexity. 在数值积分上,我们采用只迭代少数次的松弛法的迭代方法计算隐式积分的稀疏线性系统,这个方法比采用共轭梯度法具有更高的效率,并且计算复杂度是线性的。
In this thesis, convergence rate of BP network is improved by conjugate gradient method; convergence time is quickened, training efficiency is enhanced by combining intensive training with moderate training. 用共轭梯度法改善神经网络的收敛速率;把强化训练和适度训练相结合,提高训练效率,加快收敛时间。
So we can using the algorithm to estimate the parameters in ARMA model. Fourthly, we make up another new kind of conjugate gradient method which contains three parameters and the application of it in the non-linear time series ARMA model. 再构建了一种三参数的共轭梯度法及其在非线性时间序列ARMA模型的参数估计中的应用。
Then, I perform two methods to solve large scale linear sparse systems for seismic modeling& Conjugate gradient method and LU method. I also compare and analyze these two methods on several aspects, such as computational accuracy, memory requirement and CPU run time. 接着研究了两种求解大型稀疏矩阵的解法&共轭梯度法和LU分解法,也从计算精度、计算内存需求及计算效率分析了这两种方法的特点。