规则性

Protocol analysis technology resolve several main problems: accurateness, capability, service, integration with other security system.

它是新一代IDS系统探测攻击手法的主要技术，它利用网络协议的高度规则性快速探测攻击的存在，因而它与具体的协议格式息息相关。

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。

The irregular and damaged hemosiderin rim may be a important clue to consideration of hemorrhagic...

脑内转移瘤与脑内血肿的鉴别诊断应注意血肿周围含铁血黄素沉积圈的完整性和规则性。

RESULTS:The irregular and damaged hemosiderin rim may be a important clue to consideration of AICM in the differentiation of hemotoma; The intraventricular metastases are commonly well-circumscribed and tended to seed early.

在转移瘤与脑内血肿的鉴别诊断应注意血肿周围含铁血黄素沉积圈的完整性和规则性；脑室内的转移瘤常有清楚的界面，但发生早期种植转移

Irregular hepatectomy with removal of tumor is effective in treatment of primary liver carcinoma.

非规则性肝切除是治疗原发性肝癌的有效方法，特别对于合并肝硬化的患者有临床应用价值。

Objective To explore the clinical effect of irregular hepatectomy with removal of tumor for the treatment of primary liver carcinoma.

目的探讨非规则性肝切除术治疗原发性肝癌的临床疗效。

Operation and pathology confirm liver cancer of about 80% above is amalgamative liver is sclerotic, accepted replace excision of leaf of regular sex liver to not have with local excision period the result is same, and the liver function after art is reduced mussily , operation mortality also is reduced.

手术和病理证实约80%以上肝癌合并肝硬化，公认以局部切除代替规则性肝叶切除无期效果相同，而术后肝功能紊乱减轻，手术死亡率亦降低。

The present study consisted of two parts:Using an identity judgment task, Experiment 1 investigated into three-level Indonesian students pronunciation of phonogram characters with different familiarities.

本研究包括两部分：研究一采用语音同一性判断作业，旨在考察不同水平的印尼学生在认知高频、低频形声字时是否具有声旁规则性效应。

Because wreath tablet the hair feather of the yarn appearance with spin cotton serial number, yarn Nian degree, thin spindles soon, the involution take shape all of etc.s to spin cotton craft parameter to have direct influence, in the meantime because of wreath tablet the hair feather of the yarn appearance have no rule, at yarn surface of distribute and present random, even each segment of yarn length of same yarn size reflection of the hair feather be average value, the hair feather of various length value usually difference also big.

由于环锭纱线的毛羽状态与纺纱号数、纱线捻度、细纱锭速、卷绕成形大小等纺纱工艺参数有直接影响，同时由于环锭纱线的毛羽形态无规则性，在纱线表面的分布呈随机性，即使同一纱线大小纱各段长度反映的毛羽平均值，各种长度的毛羽值往往差异也大。

In this paper, the global regularities of fractal dimensions and topological entropy in one-dimensional maps are studied by using the method of symbolic dynamics.

本文运用符号动力学方法，研究了一维映射中分维和拓扑熵的整体规则性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。