查询词典 sample point

In this algorithm, the direction-of-arrival is assumed to be a discrete random variable with a priori probability density function defined on a set of candidate points. Whether or not the secondary sample is required is based on the a posteriori probability distribution of a set of candidate point"s, which can be calculated from the array received signals. And then, the resulting beamformer is a weighted sum of the beamformers pointed at the latest set of point"s, which are combined according to the value of the a posteriori probability for each pointing direction.

在该算法中，期望信号的波达方向被看作是一个定义在若干候选波达方向上的离散随机变量，由阵列接收信号计算出各候选波达方向的后验概率，并将后验概率的分布作为是否需要进行二次采样的判断标准；随后，对各波达方向上的波束成形权值线性加权，便可得到自适应波束成形器，权系数为各候选波达方向的后验概率值。

Results (1)the model test of puncture accuracy rating: we embed oval marking rubber mud in basal nuclei of skull sample ,determined puncture point by position indicator after computerized tomography, and punctured vertically or reelected the puncture point, the mean error was within 5mm.

结果 ⑴穿刺精确度的模拟试验：在人体颅骨标本基底节区埋置椭圆形"十字"标记橡皮泥块，以中心为靶点，行CT扫描后用定位仪确定穿刺点，垂直及改选穿刺点穿刺，总平均误差在5mm以内。

Discussing the pre-processing of scanning beam and scatter point cloud data, the automatic or interactive filtering techniques and random sample or grid condensability of point cloud data are explained, and a pre-processing method having actual effect is summarized.

研究已有的模型重建技术，如插值和逼近拟合离散点，利用原型的几何及拓扑信息，构建近似模型来逼近原型；基于原型的几何特征和约束的复原为目标，得到优化的CAD模型。

The construction of the third class template is to align all the points in signature samples by point-to-point matching algorithm. Then the number of points in each sample is fixed to a constant value.

第三级模板是将各样品签名通过点—点匹配算法将样品中的点"对齐"，并据此将各样品上的点数限定为一个固定值。

To efficiently simplify the densely sampled point model, a point sample data reduction method based on surfel reconstruction was presented.

为有效地简化稠密采样点模型，提出了一种基于面元重建的点模型简化方法。

The system is stable planar combustion model when the diluent content is less than 6wt%; The system is unstable single-point spiral combustion model when the diluent content is in the range of 6wt%～25wt%, and the time of spiral point around sample one time is the same.

当稀释剂含量低于6wt％时，体系燃烧为稳定平而燃烧；当稀释剂含量在6wt％～25wt％范围内，体系为单点螺旋燃烧，螺旋点围绕试样旋转一周的时间相同。

The paper through the mechanism which produces to the asphalt road surface water harm carries on the induction to summarize, as well as the different type bituminous mixture water stability has carried on a series of contrasts experiment to several kind of different aggregates and the asphalt adherency, has analyzed the aggregate and the asphalt adherency and the bituminous mixture water stability; Meanwhile moves the water action mechanism take the pavement structure in as the key point, in the basis room experiments to the design half rigid base bituminous mixture test sample carries on washes out the experiment, the observation test sample and washes out when the number of times increase along with the time variation the basic unit wash load situation, has analyzed the water to the bituminous pavement various structures level damage rule; To immerses under the condition using the ANASYS finite element software the bituminous pavement structure level the stress to carry on the analysis computation, and analyzed the bituminous pavement according to the computed result to produce the unboiled water harm the rule, further to understand the structure level produced the unboiled water harm the rule.

本论文通过对沥青路面水损害产生的机理进行归纳总结，对几种不同集料和沥青的粘附性以及采用不同抗剥落措施的沥青混合料的水稳性进行了一系列对比试验，分析了集料与沥青的粘附性及沥青混合料的水稳定性，并对水稳性试验进行了评价；同时以路面结构中的动水作用机理为重点，依据室内试验对设计的半刚性基层沥青混合料组合试件进行冲刷试验，观察试件随时间变化和冲刷次数增加时基层的冲刷量情况，分析了水对沥青路面结构层的损坏规律；利用ANSYS有限元软件对浸水前后沥青路面层底应力进行分析计算，并根据计算结果分析了沥青路面产生水损害的规律，进一步了解结构层产生水损害的规律。

The compressed point sample can be transferred progressively after serialization. Secondly, the thesis purposes another algorithm to render the compressed point data which can render the model without reconstructing the full structure of KD-Tree. The algorithm uses the View-Frustum Culling, Back-Face Culling and Level of Detail method, and boosts the speed and precision on rendering.

其次，提出了一个在此压缩算法上的模型快速绘制算法，该算法可以直接使用序列化后数据并不需要恢复完整的KD-树结构即可进行绘制，该算法使用了视锥裁减，背向面裁减，层次细节等方法，极大提高了绘制的速度和精度。

Via the sample of erecting a steel girder bridge of 62.8 m span by float tow , the article summarizes the main technique point of the method of assembling tow boat, the process of float dragging beam, the setting up scaffold, disposal of tow and stepping equipment , calculation of float dragging stability, the fastening of hang up pole E3A3 etc, also make suggestion on the dragging equipment selection, the selection of float dragging support point and so on.

通过对跨度为62 8m钢桁梁浮拖架设的尝试，对浮拖架设中的浮拖船结构和组装、浮拖法施工步骤、膺架搭设、牵引和走行设备布置、浮拖稳定性检算、挂杆E3A3加固等主要技术环节进行了总结，并对牵引设备的选用、浮拖支承点位置选择等有关方面提出建议。

The conclusion is drawn from the simulations that the secondary electrons will go out from the sample surface more easily with the decrease of the half cone angle of tip and the increase of secondary electron energy, tip-sample separation and the distance of the emission site away from the point directly under the tip.

模拟的结果发现针尖半锥角越小、次级电子能量越高、针尖样品间距越大、次级电子出射位置离针尖正下方越远则越有利于次级电子的逸出，此外通过栅网与一个平行于样品表面的地电极的共同作用，会对次级电子产生聚焦作用。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。