小种

Exploiting this property, we derived several necessary constraints on the number of symmetric/antisymmetric filters, which help to design multiwavelets with the desired symmetric property.

为此首先系统的调查了对应于两种类型对称性的m带紧支撑正交多小波的对称性质，即用滤波器和多相矩阵刻画了多小波系统的对称特征，并由此得到正交多小波系统中对称反对称元数目的约束条件，这对于后来对称多小波的设计是非常重要。

In the experiment,EAG technology was used to study the olfactory response of three typical bark beetle species to each one of the semiochemicals at different concentration,and the walking responses of the three species to each one and the different combinations of the semiochemicals were observed by using Y-tube olfactometer.

本研究通过触角电位技术，研究了3种具有代表性的小蠹虫对不同信息化合物及其不同浓度的EAG反应，并结合"Y"型嗅觉仪测定了3种小蠹虫对不同信息化合物及其组合的趋向反应。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

Besides, as to inpainting problem in wavelet domain, we introduce a new iterative model. In this model low frequency and high frequency will carry on processing separately, enormous speed up the image repair convergence rate, and even if as high as 90% wavelet coefficient have been lost, this model will also be able to have the very good repair effect. In the old model, to compute the curvature we have to transform the coefficients to the pixel domain, and then transform back to the coefficient domain for several times and this method can solve this problem and speed up the iterative convergence.

其次针对小波域中图像修复的问题，本文提出了一种新的小波域图像修复模型，该模型根据小波变换后系数相关性的特点，将低频和高频分别进行处理，极大的加快了图像修复的收敛速度，并且即使丢失高达90%的小波系数，该模型也会有很好的修复效果，有效的解决了传统的TV- Wavelet模型在计算图像的平均曲率WCURV时，需要反复进行小波分解与重构的计算，迭代速度慢的问题。

The orders with high species richness were Hymenoptera (168 species), Diptera (90 species), Coleoptera (44 species), Homoptera (26 species), Hemiptera (23 species), Araneida (18 species) and Lepidoptera (12 species).

棉田节肢动物物种较丰富的目为膜翅目(168种)、双翅目(90种)、鞘翅目(44种)、同翅目(26种)、半翅目(23种)、蜘蛛目(18种)和鳞翅目(12种)，棉田物种数最多的科为姬蜂科和姬小蜂科，分别有22和21个物种。

Determined the core species and the species concerned, the core species contains 8 species of fishes, 7 species of amphibians, 3 species of reptiles, 7 species of mammals, 7 species of birds, 10 species of plants, and 7 types of plant communities, totally 38 species and 7 types of communities. Four species of waterfowls: Siberian Crane, Oriental White Stork, Lesser White-fronted Goose and Chinese Merganser are among the 7 species of core bird species.

确定了核心物种与受关注物种，其中核心物种分别包括鱼类8种、两栖类3种、爬行类3种、兽类7种、鸟类7种、植物10种，植物群落7种，共38个物种与7种群落。7种鸟类核心物种中，水禽有4种，即白鹤、东方白鹳、小白额雁、中华秋沙鸭。4。

Here a simple technique for parametrization construction of 17/11 biorthogonal wavelet family is presented: first, the associated synthesis filter is formulated as one trigonometric polynomial represented by two free parameters; then the perfect reconstruction condition of the filter bank is reduced to one system of linear equations; finally the analysis filter is obtained by solving this system of linear equations. Thus, the exact free parameter expressions for the 17/11 biorthogonal wavelet filter banks are derived.

该文给出了一种参数化构造17/11双正交小波组的简便方法：首先把小波合成滤波器表示为用两个自由参数表达的三角多项式，然后把双正交小波的精确重构条件归结为一个线性方程组，最后求解此方程组得到对应的小波分解滤波器，从而得到了17/11双正交小波滤波器的参数表达式。

A breed fancier who usually has only one breed but may have two; follows a breeding plan in efforts to preserve and protect the breed; produces from none to five litters per year; breeds only when a litter will enhance the breed and the breeding program; raises the puppies with plenty of environmental and human contact; has a contract that protects breeder, dog, and buyer; runs a small, clean kennel; screens breeding stock to eliminate hereditary defects from the breed; works with a breed club or kennel club to promote and protect the breed; and cares that each and every puppy is placed in the best home possible.

爱好繁殖者：他们是某个犬种的爱好者，通常他们只繁殖一到两个犬种，他们遵循繁殖计划是为了保护这个犬种，他们每年只繁殖1~5胎，只有一种前提他们才会繁殖，那就是这胎有机会增强这个犬种。他们在良好的环境中餵养幼犬，保证幼犬与人类足够的接触。他们使用协议保护繁殖者，狗，和购买者，他们经营著小的，乾净的犬舍，他们监控自己的种犬避免遗传缺陷，他们和某个犬种俱乐部或者犬业协会协作，来保护和推进这个品种，并且用心的照顾每一只幼犬，为每只幼犬寻找最合适的家庭。

On this condition, some useful features have been found in the space domain. Wavelet spectrum estimation method has been used to extract the features in the space domain because the wire rope signal is a kind of none-stable signal. In order to discuss the physical meaning of this method, this dissertation proposes the relationship between Fourier spectrum and wavelet spectrum.

为进一步进行特征提取的需要，根据钢丝信号属于非平稳信号的事实，对信号给出了小波谱估计，以及Fourier谱和小波谱之间的关系和有效的小波谱计算方法，并在对实际钢丝信号小波尺度谱分析的基础上，给出一种信号的小波谱量化的方法，提取了信号的小波谱特征。

Methods: One-step trizol had used to get the total RNA of the four animal brain, then PEGS000 to purify the small RNA from the total RNA, after the ligation ofpoly on the 3\' and the adaptor on the 5\', the oligo primer will be used to reverse translation the small RNA, and then used the specific primers to amplification the small RNA sequences. After the gel purition recovery, the small RNA will be ligated to the T-vector, and be transformed to the TOP 10 E. coli, at last, we picked up the masc. clones for sequencing.

通过Trizol一步法提取四种动物脑中的总RNA，接着用PEG纯化其中的小分子RNA，再经过poly连尾反应在小RNA的3'端连接上一段poly，然后在5'端连上adaptor，用Oligoprimer将连接好的小RNA进行反转录，用根据adaptor和Oligoprimer设计的引物来扩增小RNA，扩增后的小RNA进行胶回收后连接到T载体上，转化TOP10大肠杆菌后挑取阳性克隆进行测序，得到的序列再经过生物信息学的分析后确定是否为miRNA。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。