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A testing triangulation experiment for a polygon with 100 inside islets was done with this algorithm, and the result showed that this algorithm is efficient and robust for triangulating complex polygons with large numbers of inside islets. This algorithm has been successfully applied to the three- dimensional ore-body modeling and visualization system, in which it is used to triangulate the sectional polygons with inside islets, e.g., the inside stones or holes in ore-body, and its high efficiency has been proved.

实验表明,该算法在含有大量岛屿的带岛屿多边形三角剖分中具有很高的时间效率和很强的鲁棒性,并成功将其应用到基于剖面的三维矿体建模与可视化系统中,解决了含有夹石或孔洞的矿体剖面多边形三角剖分问题,具有一定的实际应用价值。

Secondly, more and more researchers have found that the change of ST segment in Electrocardiogram has close relations to the majority of the cardiovascular disease, so electrocardiogram signal pretreatment methods, including 4 point averaging filter, slide averaging filter, first difference, second difference, have been designed; With this foundation, detection method based on the second difference variable threshold to detect R wave in electrocardiogram has been designed, and heart rate has been calculated accurately.

其次,由于越来越多的研究者发现心电图中的 ST 段的变化与大多数心血管疾病都有着紧密的联系,因此,本课题设计了心电信号预处理方法,包括 4 点平均滤波、滑动平均滤波、一阶差分、二阶差分等;在此基础上,设计了基于二阶差分可变阀值检测方法来检测心电波形中的 R 波,计算出了较为准确的心率值。

Playing in front of a capacity crowd that featured New Orleans Saints quarterback Drew Brees, the rapper Bow Wow and the retired wrestler Ric Flair, the Hornets did not go quietly. They used a 13-3 run to cut the Spurs' 14-point lead early in the fourth quarter to 81-77 on two free throws by guard Janerro Pargo with 3 minutes 10 seconds left.

在新奥尔良主场天才橄榄球手Drew Brees,Bow Wow 以及退役的摔跤高手Ric Flair的助威中,黄蜂队打得非常之顽强,第四节最后3分10秒,后卫Janerro Parg两罚全中,至此,黄蜂以一波13比3的攻势把比分追近到81比77,此前马刺以14分领先。

It is discovered that the ignition temperature T1 of the mixtrues to be used to produce briquets is reduced and the successive combustion temperature T2 of the mixtures is increased owing to mixing some inorganic matter with raw coal. The...

据此,试图说明如下现象:在同样的层燃炉中,当原煤挥发分高时,型煤比原煤烧得更好;当原煤挥发分较低,而无机添加物又过多时,型煤不如原煤烧得好,出现接火困难、炉渣中可燃物过高等现象。

This article analyzes eight problems that consist in especial class number active indexed 'n' in numbered type of The Fourth Edition Chinese Library Classification of Electronic edition.

对《中图法》电子版编号类型中标注为&n&的特殊类号存在的特殊类号误为层累制、特殊类号误为八分法、特殊类号误为下借法、特殊类号误为上借法、特殊类号误为同借法、层累制误为特殊类号、八分法误为特殊类号、同借法误为特殊类号等8类问题进行了分析。

The varies regression curves have been adapted to calculate moisture in order to increase device precision and overcome the shortcoming of big error at high moisture when using single curve. 3 Varies scope output signal are changed to 4~20 mA and sent to computer over the share-voltage compensation circuit. The multi channel sensor could be auto chosen to display lumber moisture in different position of the kiln. It makes the moisture distribution of lumber in the kiln clearly and drying standard accurately.

所以采用不同的拟合曲线对水分进行换算,以便提高仪器精度,并克服单一曲线造成的高含水率时误差较大的缺点;3:采用分压补偿式测量电路,将不同量程的输出信号转换成统一的4~20mA信号,送至计算机进行集中数据处理;并自动控制多路传感器的选择,分时显示干燥窑中不同部位木材的水分,使整个窑中木材水分分布一目了然,便于准确地制定干燥基准。

First, we introduce the linearly distributed stress tensors as the source and by means of two-dimensional finite-difference scheme to obtain the response of this source, then the point source response is generated by correcting both the wave forms and geometrical spreadings for the linear respons.

但在理论地震学,工程地震学和勘探地震学中横向不均匀介质中的波传播问题非常重要,此时使用有限差分法和有限元法等离散数值方法比较有效。鉴于目前计算工具的限制,三维模型的有限差分计算虽然在理论上是可行的,但很少能用于实际。

The first step is to eliminate all kinds of noises generated in the process of collecting traffic video by means of median filter; Then we finish image sharpening with Laplace operator to clarify edges of the video images; finally, image contrast is enhanced with the help of the second-developing packet SDK-2000, which is provided by our video-collecting card. This way, much more satisfactory images are obtained, and preparation is already made for the following work, thats image analyse.Thirdly, according to the characteristics of our system, mobile objects are distinguished by means of image difference. Then some features such as regional area, length and width of traffic objects are selected and extracted. After processing of scale filter, we successfully recognize those moving vehicles appearing in the monitoring regions.Fourthly, some corresponding algorithms are brought forward to automatically identify those familiar traffic peccancies of many sorts, such as red light violation, yellow-line covering, parking in prohibited spots, over-speed running and converse running. Then we find means to snap pictures and to intercept videos of the spot, and collect a lot of relevant information such as the time, the block, the running direction and the weather conditions and so on. According to this information, our traffic management departments could make correct decisions on punishing those drivers who have broken the traffic rules.Considering the complexity of traffic environments on particular blocks, in order to monitor other traffic peccancies effectively, we also have designed the scheme to carry out traffic monitoring by manual.

首先运用中值滤波法对视频图像进行去噪处理,然后采用二阶差分法进行图像锐化,再通过视频捕获卡携带的二次软件开发包SDK-2000进行对比度增强,从而得到比较理想的图像,为后续的图像分析工作做准备;第三,根据系统特点,通过背景图像差分法,分割出监测区中的运动目标,然后对交通目标的区域面积、长度和宽度等进行特征提取,再经过尺度滤波处理,从而自动识别出机动车辆目标:第四,分别设计相应的算法,实现对闯红灯、压黄线、违章停车、违章超速及违章逆行等常见的交通车辆违章行为的自动识别,并自动抓拍违章现场,截取违章视频,采集其它相关违章信息,为交通执法部门进行交通违章处罚提供有力依据:考虑到特殊路段特殊环境下的交通复杂性,为了有效监控其它类型的交通违章行为,本文还设计并实现了对交通违章的手动监控模式。

A series or criteria of recognizing tin-bearing granite is set up by collecting the data on related petrology, mineralogy, geochemistry, trace elements, transitional ele ments, incompatible elements and rare earth elements.

黑云母花岗岩对成矿的贡献有两个突出的方面:其一是其在重熔生成演化过程中,经高度分异作用,将原各地质体中的锡多金属元素分馏富集,为成矿奠定了一个良好的基础。

The coal tar pitch powder was used with each of 22 kinds of dispersants prepared coal tar pitch water slurry,and 6 kinds of dispersants were selected to prepare coal tar pitch water slurry with the high temperature coal tar pitch powder which has a softening point of 105℃.

采用冷冻粉碎的方法将软化点为90℃的中温煤沥青制得粒度≤200目的煤沥青粉后,再与22种分散剂制备煤沥青水浆,从中筛选出6种成浆性好的分散剂再与软化点为105℃的高温煤沥青粉制备煤沥青水浆,结果表明中温煤沥青粉比高温煤沥青粉更易制得稳定性好的煤沥青水浆。

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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。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。