二层的

The first, look like each detail picture of direction of picture and each layers to carry on DCT towards get of again, then will imbed to look like the son diagram DCT transformation through two value watermark pictures of the false random row preface behind of the part of the high part of frequency and the detail son diagram energy concentration.

本论文中提出的第一种算法是一种基于离散余弦变换和离散小波变换相结合的脆弱水印方法，即：先对图像进行离散小波变换，再对得到的近似图像和各层各方向的细节图像进行离散余弦变换，然后将经过伪随机排序的二值水印图像嵌入到近似子图DCT变换后的高频部分和细节子图能量集中的部分。

Based on the small steepness parameter, three-layer incompressible, inviscid and irrotational fluid system of arbitrary depth is discussed by using the perturbation method, and a unified theory of nonlinear interfacial-internal wave propagation and the approximate nonlinear evolution equations for interfacial-internal elevations are given on the basis of the rigid upper boundary and the flat impermeable bottom.

基于波陡很小的假设下，利用摄动法，讨论了任意深度的二维不可压缩、无黏性、无旋的三层流体系统，在刚性上边界、平底不可渗透条件下，给出了界面内波传播的统一理论以及描述界面内波波剖面的近似非线性演化方程，最后还讨论了几种特殊情形下的近似非线性演化方程。

Macerate 1.0g of the powdered sample with 20.0 ml of chloroform plus 0.3ml of 25％ NH_4 OH in a glassstoppered flask overnight.

本文报道用不含粘合剂的氧化铝薄层，以二甲苯-丙酮-无水乙醇-二乙胺(50：40：10：0.6)为展开剂分离茄科植物中的莨菪碱、东莨菪碱、山莨菪碱、樟柳碱及红古豆碱等五种莨菪烷生物碱，用改良Dragendorff试剂-Wagner试剂(1：1)显色，定量收集莨菪碱、东莨菪碱及山莨菪碱的斑点，莨菪碱和东莨菪碱用氨甲醇洗脱，蒸干洗脱液后分别用pH 5.6及pH 4.5的溴甲酚绿溶液作比色测定；山莨菪碱用4％醋酐氯仿洗脱，蒸干洗脱液后用pH 5.6的溴甲酚绿溶液作比色测定。

The relation of interfacial adsorption equilibrium in the solution system was respectively tested and calculated with Gibbs equation and dynamic method .The conclusion showed that (1) the experiment result of dynamic method with was highly in coordination with the value which from theoretical calculation.(2) The surfactant molecule was in arrangement of monomolecular layer at the gas-liquid interface.

用吊环法测定了十二烷基硫酸钠水溶液不同浓度与其界面张力的关系，拟合得到的回归方程为σ=-0.9523 ln ~2C-24.534 ln C-81.411，同时还测得其临界胶束浓度值CMC为6.5×10~(-3M，运用吉布斯等温方程和动态法分别计算和测定了该溶液系统的界面吸附平衡关系，结论表明：(1)动态法测定结果基本吻合吉布斯方程的理论计算；(2)表面活性剂分子在气—液两相界面是以单分子层形式定向有序排列的。

Two-dimensional multilayered complex of Octabenzenesulphonate Polyhedral Oligomeric Silsesquioxane modified by alkyltrimethylammonium bromide C_nH_(2n+1N(CH_3)_3Br, CnTAB, where n denotes the carbon number in the alkyl chain via ion-exchange reaction.

一方面，使用多电荷阴离子的八磺酸根POSS和十六烷基三甲基溴化铵表面活性剂在水溶液体系里面进行离子交换反应，利用有机-无机不同的相似相容性质通过自组装的手段，得到具有规整的二维层状结构的杂化材料。

In order to resolve this problem,an effective conversion of fitted-body coordinate has been used in numerical simulations of flow field within a facture of layered medium ,resulting in a successful transformation of 2D flow-field calculation within a fracture from a complex physics domain to a regular calculation domain.

为了有效地攻克这一技术难关，在层状介质缝内流场数值模拟中，采用了有效的贴体坐标变换，成功地将二维缝内流场计算从复杂的物理域转换到规则的计算域，从而为我国全三维水力压裂数值模拟软件的开发和应用提供了良好的理论基础和新的思路。

Then the more advantaged detection technique is needed to be used in the pile detection. Computed Tomography is just such an advantaged technique, which has been widely and maturely used in iatrology, and in exploration of geophysics and scatheless detection in recent twenty years. It can reflect the inside structure of the inspected object precisely and gain the clear figure.

这就要求把更先进的检测方法应用到桩基检测中来，而层析成像技术就是一种非常先进的检测方法，它在医学中应用的非常成熟和广泛，最近二十年才应用到地球物理探测和无损检测中来的，它能精确反演被测物体的内部构造，得到清晰的图像。

The principal purpose of this study is to set up the isolation methods for diphtheria toxin expressed by genes, to purify the toxin with complete biological activities, and to make researches on its toxicities. In the experiments, the target gene was inserted into the cloning vectors--pET22b, then the vectors were introduced into host cells -BL21(DE3). The expression of the toxin was induced by addition of IPTG. The expression products were purified by His-6 label affinity chromatography. Then the diphtheria toxin expressed was transferred to PVC membrane using semidry blotter to determine the amino acid sequence of N-terminal. The "nicked" diphtheria toxin linked by disulfide bond was gained by protease hydrolysis.

为建立重组基因表达白喉毒素的分离纯化方法，制备出具有生物活性的蛋白质毒素，构建了白喉毒素表达载体pET22b-DT，并转入大肠杆菌BL21(DE3)中诱导表达，以融合表达的His-6作为标签通过亲和层析纯化；表达毒素经蛋白酶酶切后，形成了以二硫键连接的与天然结构相同的带"缺口"的白喉毒素，并测定白喉毒素对豚鼠的急性毒性和细胞毒性。

Ln this paper, a new learning method is presented which is based on analyzing a set of linear separable structures. The most important benefit of this method is all binary neurons belong to one or more types of linear separable structure sets. If those linear separable structure sets have clear logical meaning, the whole knowledge of binary neural networks can be dug out.

该文提出了一种基于线性可分结构系结构分析的学习算法，采用这种方法对布尔空间的样本集合进行学习，得到的二进神经网络隐层神经元都归属于一类或几类线性可分结构系，只要这几类线性可分结构系的逻辑意义是清晰的，就可以分析整个学习结果的知识内涵。

The main contents are: First, the abolition of the side-street parking, the construction of a 850 car parking spaces on the ground floor of the five-storey car park to free up the 4 hectares to expand the road pavement; Second, the road resurfacing on the sidewalk, there was a light gray Small blue dot granite laid, in order to give people the feeling of quiet calm; three, and widen the sidewalk and then kind of two rows of wooden Indus, on both sides of the road will have a 4 row of trees, shade trees appeared to take a walk Avenue of the landscape; four , The road to the replacement of "the family silver", including the re-installation of street lamps, benches, bus shelters, posters and columns, such as kiosks.

内容主要有：一、取消路边停车侧道，兴建一个拥有850个车位的地下五层停车场，把腾出的4公顷路面拓为人行道；二、重铺人行道路面，用浅灰色间有小蓝点的花岗石铺设，给人以宁静沉稳的感觉；三、拓宽人行道后，再种两排梧桐木，大道两侧就有了4排树木，出现绿树掩映的散步大道景观；四、给大道重置"家当"，包括重新安装路灯、长椅、公共汽车候车亭、海报柱、报亭等。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。