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Also it points out that, the paper industry sustainable development realizes the Chinese environment economy sustainable development significant influence, and has been clear about the solution paper industry environment question essential outlet in this foundation;2It systematically inspects the China paper industry sustainable development course, the paper industry sustainable development domain, the mainstream forest pulp and paper integration pattern and the practical significant reed pulp paper integration pattern domains and so on, as well as the paper industry circular economy domain research condition has carried on the system narration;3The paper industry circular economy system is an "economical - resources -environment - society "multiplexed system.

同时指出，造纸工业的可持续发展对实现中国环境经济可持续发展的重大影响，并在此基础上明确了解决造纸工业环境问题的基本出路；2系统地考察了中国造纸工业的可持续发展历程，对造纸工业可持续发展领域，主流的林浆纸一体化模式和具有现实意义的苇浆纸一体化模式等领域，以及造纸工业循环经济领域的研究状况进行了系统的评述与总结；3造纸工业循环经济系统(Paper Industry Circular Economy System，简称PICES)是一个经济—资源—环境—社会复合系统，其各子系统之间及各要素之间的相互作用机理复杂，是一个复杂的巨系统。

The phase of optical wave can be recovered by the intensity transport equation under the paraxial approximation For the optical system with diffraction limit, it is difficult to get the boundary radical slope of phase and sample in the circular domain boundary when using the intensity transport equation to recover the phase, consequently, we reviewed an algorithm mentioned in the reference ［4］, namely, the equation, computation domain and boundary condition are changed, then the phase is reconstructed by the multigrid method and corrected at last Moreover, the experiment system is set to testify the algorithm, and the recovered phase from the intensity data detected by CCD is compared with the result from phase retrieval algorithm, it is found that the phase reconstruction error can reach 017 λ in the case of non-uniform intensity distribution, as a result, the method is suitable for the phase recovery with low wavefront sensing accuracy.

在傍轴近似条件下，可以利用光强传播方程对畸变波前进行相位恢复。对于衍射受限的光学系统，很难获得相位的边界径向斜率值作为边界条件，此外，要获得精确的圆域边界采样值也并非易事。为了克服上述困难，进一步研究了相位恢复改进方法，即改变了方程的表示形式、计算区域和边界条件，并用多重网格法进行求解获得重构相位，最后再将其修正。为了验证算法的精确性，搭建了实验系统对算法进行实验验证，将由CCD探测的光强分布进行计算得到的相位分布与相位恢复算法的结果进行比较，证明在光强分布非均匀的情况下，该方法恢复的相位均方根误差能够达到017 λ，可以适用于波前传感精度要求不是很高的相位恢复。标签自适应光学相位恢复相位修正光强传播方程 adaptive optics phase retrieval phase correction intensity transport equation

3D seismic migration algorithms of holding circular symmetry ;2. Assuming that the point spread function is circular symmetry and considering that the image is actually complex conjugate symmetry in frequency domain, authors establish a new cost function in frequency domain.

算法假设退化系统的点扩散函数具有圆对称性，并考虑图像的频域具有复共轭对称性，在频域里建立了新的优化判据；采用共轭梯度算法搜索判据，从而在有实际物理意义的区域中收敛于最优解；对光学成像系统常见的离焦、衍射模糊问题进行了仿真；用该算法实现了其退化图像的恢复，给出并分析了结果。

Triangulation over a convex 2-D domain is implemented by advancing front technique and circumcircle optimizing method, while the triangulation over an arbitrary 2-D domain needs more restriction of the visibility between points.

对于边界已知的平面区域的三角剖分，按照网格前沿方法和外接圆优化准则实现凸边界的平面区域Delaunay剖分，而对于凹边界区域的三角剖分，需增加可见性判断准则，实现对其的三角剖分。

Three classes of equivalent system methods which are used in finding high order flight control systems low order equivalent are studied. The first class methods are the classical frequency domain-based equivalent system methods which recommended by MIL-F-8785C and MIL-STD-1797A. Five longitudinal low order equivalent systems and fourteen lateral ones are discussed in detail and some pieces of advice are given. Also conduct an investigation in the time domain-based equivalent system methods .

研究了求取高增稳飞机的低阶等效系统的几种方法：研究了经典的频域等效系统方法，针对纵向5种、横向14种构型的低阶等效系统进行了拟配实践，并提出一些有益的看法；以频域等效系统方法为基础，提出了时域等效系统新方法；以最小二乘辨识为基础，提出了两种纵向短周期低阶等效系统时域辨识方法(等效延迟时间τ_q参与或不参与)。

WS, the global solution for Internet addresses with the .ws top-level domain, closed a deal with a large publicly traded company, one of the biggest players in the .com arena, and received payment in full of $2,250,860 for the rights to a select group of "premium".ws domain names.

WS ，全球互联网地址的解决方案的。是的顶级域名，关闭了处理大型上市公司，其中一个最大的球员。 com舞台上，并在收到付款充分的二百二十五点零八六万美元的权利，以一组选定的"溢价"。为域名。

Modal analysis of an acoustic system can determine its natural frequency and show the distribution of the acoustic quantities in space, give the knowledge about the way that the acoustic system responses are affected when changes are made in the excitation sources or in the domain geometry, and provide valuable information for the noise control of closed three-dimension domain.

通过对声学系统的模态分析，可以得到其固有频率以及在此频率下声学量在声场空间上的分布，了解到声源及声场空间几何参数的变化对声学系统的相应的影响，为三维封闭空间的噪声控制提供了依据。

In the discrete wavelet transform domain, the watermark information is embedded by quantifying the coefficient of the transform domain andthe watermark can be extracted without the original audio.

在离散小波变换域水印嵌入算法中，本文给出了小波变换域系数均值量化的水印嵌入方案。

In the discrete wavelet transform domain, the watermark sequence is modulated with m-sequence at first, then the watermark information is embedded by quantifying the coefficient of the transform domain. The quantification procession is given.

4在离散小波变换域，先对水印序列进行扩频调制，然后通过对变换域系数进行量化来嵌入水印信息，给出了量化方案；在水印的提取过程中不需要原始音频信号的参与。

In the discrete cosine domain, the watermark is embedded by quantifying the coefficient of the dct domain, spectrum-spread is applied. the watermark can be extracted without the original audio.

在离散余弦变换域，采用扩频技术通过对变换域系数进行量化来嵌入水印信息，在水印的提取过程中不需要原始音频信号的参与。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。