查询词典 filtering

The rule-formalization definition, abstract model of dianoetic machine, and dianoetic algorithm in the enhanced packet-filtering firewalls are presented.

并在此基础上，提出了推理机的抽象模型和推理算法，设计并实现了相应的推理机，同时给出了防火墙的设计实例，以此作为对上述工作的验证。

An aluminum bar grating screen encloses an exterior patio and deck filtering interior views and forming a sparkling and diaphanous wall from the street.

铝棒光栅的屏幕包围了外部庭院和甲板过滤内部的意见，形成波光粼粼的街道和透光墙。

A light soil consisting of siliceous diatom remains and often used as a filtering material.

由硅藻土残留物的通常用来作为过滤材料的轻质土。

Right DIB images Wiener filter recovery operation and evaluation of the effect of filtering information entropy algorithm.

对DIB图像进行维纳滤波复原操作和评价滤波效果的信息熵计算算法。

Compared to information filtering systems which aim to find interesting information for users, the system has several differentiae.

它所过滤的内容与系统的某一个或者某一群用户无关，而是适用于过滤系统的全部用户。

In this dissertation, based on the extraction of meaningful polarization information, the polarimetric speckle reduction, polarimetric contrast enhancement, polarimetric classification and ship detection in polarimetric SAR images are systemically studied. During the study, some new concepts and methods are introduced, which are supported by the application to measured Pol-SAR data. The innovations of this dissertation are as follows: 1 A simplified schem is proposed to reduce the complexity of scattering-model-based speckle filtering. 2 Extend the expression of polarimetric correlation coefficient to help distinguishing targets. In addition, introduce the quantized parameters of polarimetric signature so as to show the differentiae in quantity in co-polar power, cross-polar power and shapes of polarization signatures among targets. 3 Define a new parameter of difference degree between targets, which can be used for express the difference between both coherent and distributed scatters.

论文在较系统的研究目标特征量提取方法和特征量所包含的物理意义的基础上，对极化SAR图像降斑、极化对比增强、极化SAR图像分类以及极化SAR图像中海上舰船目标检测等方面进行了研究，并提出了一些新的概念和方法，对实测数据的处理结果表明，这些新的概念和方法对于极化SAR信息处理是有效的，本文的主要创新成果包括以下方面： 1）针对基于预分类的MMSE极化降斑方法实现过程非常复杂的问题，提出了简化方案，并验证了方案的有效性； 2）扩展了极化相关系数的表示方法，这种扩展增强了极化相关系数对目标的区分效果；另外还提出了极化特征图量化参数，可以从量上表征不同目标间相同极化和交叉极化的回波功率差异和极化特征图形状差异； 3）定义了目标间的差异度参数，它不仅可以用于描述相干目标，还可以用于描述分布目标的差别程度。

To test the respirators fitness, we used quantitative fit test system to measure the fitness of the three models of new respirators worn by real person. The testing method is to use a differential mobility analyzer to select the particles of 40nm in diameter. N95 respirators are capable of filtering out almost all 40nm particles, therefore, the 40 nm particles measured within the respirator would be considered due to the leakage caused by poor fitness.

口罩密合度是使用定量密合度测试组合系统以真人分别配戴三款五年口罩A、B与C和同样型号新口罩来测试其密合度，测试方法主要是利用差异电移动度分析仪筛选粒径为40nm的微粒，而N95口罩的特性几乎可以完全过滤40 nm的微粒，所以口罩内量测到40nm粒径的微粒可被认定是泄漏造成。

By automatically selecting the optimal diffusion constant and iterative number, the filtering process is totally automatic and does not require any operator assistance and the diffusion is suppressed or stopped at boundaries and edges and small structures are retained.

正是在这样的背景下，本研究针对计算机集成相控HIFU治疗计划中的两项关键技术：序列医学断层图像的分割及其体视化技术，进行了理论研究和算法的设计。

Secondly, the reali-zation of data acquisition and digital filtering in the system are analyzed in detail.

其次，详细分析了本系统的数据采集和滤波器的实现方法。

Further analysis shows that the quadrature filtering algorithm is a simplified algorithm of Discrete Fourier Transform.

进一步分析表明，正交滤波算法是离散傅立叶变换的一种简化算法。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。