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The invention discloses a vehicle speed matching method based on linear array CCD image, including the following steps that: two linear array CCD video cameras are respectively arranged on two sections positioned on a road at intervals; both linear array CCD video cameras face downwards and are provided with infrared ray laser source; the frame rate of each CCD video camera is more than 1,000 frames per second, and the resolution is more than 1,024 lines; correlation matching computation of the image sequences obtained by both linear array CCD video cameras is carried out to obtain the time difference of the same object in two image sequences; finally, by means of the time difference and the distance between both cameras, the driving speed of an object vehicle can be obtained according to the velocity formula V=s/t.

本发明公开了一种基于线阵CCD图像的车辆速度匹配方法,该方法在道路相距一定距离的两个断面上分别安装两个线阵CCD摄像机,两个线阵CCD摄像机指向垂直向下,线阵CCD摄像机上配有红外线激光源,线阵CCD摄像机的帧速率大于1000帧/秒,分辨率大于1024线;对两个线阵CCD摄像机得到的图像序列进行相关匹配计算,从而获得同一个目标在两个图像序列中的时间差,利用该时间差和两个摄像机的距离,根据速度公式V=s/t即可以得到目标车辆的行进速度。

So,the genetic distance could be used for the choice ofparents and for the heterosis prediction in cross breeding of Liriodendron.

因此,花粉品质、杂交亲和力和一般配合力应作为亲本选配的重要依据;基于RAPD标记的亲本间遗传距离与子代1年生苗高和地径生长量均表现为二次曲线相关,复相关系数分别为0.8235和0.5090,达极显著(H,P<0.01)和显著(GLD,P<0.05)程度,说明利用亲本间遗传距离进行鹅掌楸亲本选配和杂种优势预测是可行的。

In practical engineering application of opencast mine, the actual distance and the map are often differences, how to establish a suitable local independent coordinate system is closely related to the mining safety problems.

在露天矿区实际的工程应用中,实测距离与图上距离往往差异较大,如何建立一个适合当地的独立坐标系统一直是与矿区安全生产密切相关的问题。

According to the localization principle of the DV-Hop algorithm, this paper proposes three improvements including the estimation of average single hop distance, the calculation of distance between unknown nodes and reference nodes and the estimation of node positions. These improvements can be used independently or jointly to replace the corresponding steps in the DV-Hop algorithm. The localization performances are analyzed in theory and with simulations.

该文根据DV-Hop算法定位过程,在平均每跳距离估计、未知节点到各参考节点之间距离的计算和节点位置估计方法等3个方面进行了改进,分析和仿真了不同改进措施和综合改进的定位性能。

But Gabriel ascended with him for a distance above that, the distance of which only Allah knows, till he reached the Lote Tree and then the Irresistible, the Lord of Honor and Majesty approached and came closer till he was about two bow lengths or nearer.

但加布里埃尔登基与他,距离上述表示,距离其中只有真主知道,直到他游到地段树,然后再由不可抗拒的原因,主的荣耀和英国接洽,并于紧密到他的约两鞠躬长度或近了。

Simply stated: A loupe with a longer working distance, will have a larger depth of field, and vice versa.

景深的大小直接和工作距离相联系,简单的说:手术放大镜的工作距离越长,景深就越大,反之亦然。

Simply stated: A loupe with a longer working distance, will have a larger field of view, and vice versa.

视场的大小直接和工作距离相联系,简单的说:手术放大镜的工作距离越长,视场范围就越大,反之亦然。

For the multidimensional representation of finite fields, we define a new Mannheim distance, under which codes over finite fields are discussed.

对有限域的任意多维表示,定义了一种Mannheim距离,并在这种距离之下讨论了有限域上的线性分组码。

The inventive method comprises: first calculating the distance of each couple of writing brush words in the word base at certain threshold value, to generate one local distance diagram, and building the index based on B tree of said diagram; when user provides one sample writing brush word, system based on demand searches the word similar to the word; the user based on dynamic feedback selects the word similar to the mantic of said word.

在实施本方法的过程中,首先对书法字库中的每对书法字在一定阙值条件下求得距离,生成一个局部距离图,并对该图建立基于B 树的索引。当用户提交一个例子书法字后,系统根据要求检索出与该字相似的字,然后用户可以根据相关反馈动态选择与该字语义相同的字。

Results:① The distance between handle of malleus and stapes head was(2.38±0.19)cm(2.00~2.70cm), the point selecting for measuring was outer margin of handle of malleus and stpes head.②The cross section form of one_third of the handle of malleus at the end, was triangle, the anteroposterior diameter of handle of malleus was(0.79±0.12)mm, the exterior and interior diameter was(0.58±0.10)mm at the crook point,the angle of line of manubrium mallei laid(83.24±8.33)°(66~98°)posteroinferior to arch of zygoma.③The long axis of prosthesis formed(27.60±1.75)°(24.6~30.2°)angle with the perpendicular of stapes.④The dependablity between the malleus_stapes distance and transverse diameter of tympanum, the location of umbo in tympanic membrane, the diameter of manubrium mallei, angle of line of manubrium mallei and arch of zygoma were not statistically significant.

结果:①锤_镫距离最短为(2.38±0.19)cm(2.00~2.70cm),测量点为锤骨柄末端1/3处外缘和镫骨头;②锤骨柄末段1/3横断面形状接近三角形,弯曲处前、后方向直径为(0.79±0.12)mm,内、外方向直径为(0.58±0.10)mm;锤骨柄与颞线的成角为(83.24±8.33)°(66~98°);③赝复物长轴与镫骨垂直方向成角平均为(27.60±1.75)°(24.6~30.2°);④锤_镫距离与鼓室横径、鼓脐在鼓膜上的位置、锤骨柄直径、锤骨柄的方位的可能相关因素之间相关性检验无统计学意义。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。