二倍

The numercial simulation has been carried out, and the experimental results show that this method has been improved significantly comparing with the traditional one in nonlinear optics. Secondly, a second order system of semilinear elliptic equations, which comes from a mathematics model of the electric potential distribution of a media surrounded with the protein, is transformed into a variational problem, the existence of solution of it is proved by using variational principle and Trudinger—Moser inequality, and the relation between the solutions of variational problem and the solutions of its dual problem is obtained.

首先，讨论了非线性光学中的二次谐波产生的耦合方程组，利用变分法证明了耦合方程组非平凡解的存在性，然后进行了数值模拟，实验结果表明文中方法比经典的非线性光学中的方法有较大的改进，这对优化光倍频器件的设计将有所帮助；其次，将一类二阶半线性椭圆型方程组转化为一个变分问题，然后利用变分法和

He said that after the previous twenty years of rapid development, national urban and rural residential new 24 billion square meters, equivalent to 230 million units, the vast majority of people has been noticeably improved housing conditions, per capita living standards than in the past increased 2.5 times.

他说，在过去二十年的快速发展，全国城市和农村住宅新二百四十万点零万平方米，相当于230万辆，绝大多数的人有了明显改善住房条件，人均生活水平比过去提高2.5倍。

The specific capacitance of the ACNT electrode was calculated at 16F/g before the MnO2 film modification, and then it increased to 330 F/g after the MnO2 film deposition due to the special Faradic capacitance of MnO2 With scaning for 200 cycles, there's a litter change for its cyclic voltammogram curve, indicating the good reversible and capacitive property for the MnO2-ACNTs composite.

直立碳纳米管电极的比电容为16 F/g，在碳纳米管表面沉积上二氧化锰修饰层后，此复合材料电极的比电容增大至330 F/g，比电容量大幅提升近20倍。同时扫描200圈后，直立碳纳米管与二氧化锰复合材料的循环伏安曲线变化很小，说明其具有相当好的循环寿命和电容稳定性能。

I am assured by our Merchants, that a Boy or Girl, before twelve years Old, is no saleable Commodity, and even when they come to this Age, they will not yield above three Pounds, or three Pounds and half a Crown at most on the Exchange, which cannot turn to Account either to the Parents or the Kingdom, the Charge of Nutriments and Rags having been at least four times that Value.

我从我们的商人那里得到确证，十二岁前的男孩或女孩作为商品并不适合销售，即使他们到了十二岁，他们的利润也不会多于三镑，最多通过交易获利三镑五先令，可这并不能补偿他们的父母，也不能补偿王国，他们吃过的营养品和穿过的衣物的钱至少是这些的四倍。

Three days after inoculation, 67.13% grape phylloxera selected 'Kyoho', while only 15.29% and 17.58% phylloxera selected '5BB' and '140Ru', respectively.

对砧木5BB和巨峰根系的挥发性组分进行测定，发现2个品种挥发物独有组分数量均较高，巨峰独有组分为23个，占总成分数的48.94%，5BB的独有组分为32个，占总成分数的57.14%。5BB和巨峰的共有组分为24个，主要成分均为亚油酸甲酯和反油酸甲酯，但含量有所不同，其中，5BB以倍半萜类的丁香醇及脂肪酸甲酯类的亚油酸甲酯，反油酸甲酯，棕榈油酸甲酯含量较高，高于巨峰中相应物质含量的4.23%~6.46%，而巨峰以邻苯二甲酸二丁酯及胆甾烷含量较高，分别高于5BB相应组分含量的6.81%和1.07%。

A first order quasi phase matched periodically poled LiNbO 3 for SHG with 6.5 μm period, 12 mm length, 10 mm width and 0.5 mm thickness has been successfully fabricated by applying an external electric field at room temperature from an high pulsed voltage generator. About 18 mW of CW 0.532 μm green light was obtained pumped by an 1.1 W of CW 1.064 μm Nd∶YAG laser with end coupling, which corresponds to 1.6% power conversion efficiency.

通过高压脉冲电场极化，制备了周期为6.5 μm、长为12 mm、宽为10 mm、厚为0.5 mm的一阶准相位匹配周期性极化铌酸锂；由1.1 W连续1.06 μm Nd：YAG激光器抽运，在5°时产生了约18 mW、0.532 μm的倍频连续绿光，其对应的二次谐波转换效率约为1.6%，二次谐波的归一化转换效率约为1.5% cm-1W-1，相当于79%的周期性极化铌酸锂的理想非线性系数。

In comparison, it is proved that the wave functions occuring in the two formalisms are identical, apart from a constant multiple which represents the scalar product of the wave functions of a bare nucleon and a dressed nucleon.

这个常数倍即是物理核子及裸核子的波函数的内乘积。第二，我们讨论了一般的含有二个h函数的Chew-Low方程的解，方程的形式使它们在实轴上在(1，∞)及(-1，-∞)二段上不连续。

He built the MEG-1X personal strap-on helicopter rig which used a single-blade rotor with a tip-mounted G8-2 engine and followed this with the MEG-2X which had a two-blade rotor.

他建造了乙二醇- 1X的个人捆绑式直升机钻机的使用了单转子叶片用尖式八国集团- 2发动机，并遵循这一乙二醇- 2倍的有一两转子叶片。

At every step only one subpattern is used to perform pattern matching, and a part of reference patterns which have less distances to the unknown pattern are retained to match further in the next step.

这样使匹配过程加快三倍以上。文中给出了在语言识别方面的实验结果。采用二种淘汰办法，它们在前三级上的淘汰率分别是：3/4，1/2，1/2；9/10，1/2，1/2。这二种办法所需的图样匹配时间分别是0.359T_0和0.294T_0，T_0——是完整的匹配过程所需的时间，而正确率几乎不下降。

The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作：1合成了三种可进行光二聚反应的光敏小分子单体，LPUV 辐照制作了光控取向膜；用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应，发现小分子的光反应程度可达到50%以上，至少比光敏高分子高出5倍；薄膜的偏振红外光谱证实，经过LPUV 辐照后薄膜出现了明显的各向异性；将小分子光控取向膜制成液晶器件，在偏光显微镜下观察看到均匀一致的液晶取向；并且热稳定性达到100℃左右，接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜；采用接触角的方法监测自组装反应的动力学过程；紫外-可见光谱证实了自组装单层膜在石英基板表面形成；自组装单层膜经LPUV 辐照后能诱导液晶均匀取向，而且热稳定性可达130℃，热稳定性进一步提高。3合成了含有光敏双键的双季铵盐，在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜，紫外-可见光谱证实这是一个逐层均匀的沉积；在LPUV 照射下，自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应，形成取向膜，用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平；实验证明用自组装多层膜制成的液晶器件亮暗态均匀，静态对比度约为100，达到实用化器件的水平。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。