查询词典 data point

Case one: ignoring atmosphere resistance, the impact point is estimated using the ellipse theory with the data of angle measurement . Case two: considering atmosphere resistance, the coefficient of missile trajectory is estimated by EKF and the impact point is estimated using missile's dynamic model.

忽略大气阻力，根据椭圆理论，利用自由飞行段所获得的弹道参数信息估计导弹落点；考虑大气阻力，通过滤波手段得到导弹的弹道系数，再利用导弹的动力学模型递推精确估计导弹落点。

The calculated and experimental results of phonon structure fit well in the vicinity of the high symmetry point, while in that of low symmetry point X,the calculated results are higher than the experimental data, which results in the frequency shifts in the phonon density of states.

发现在高对称q点附近，声子结构的计算与实验数据符合很好，而在对称性较低的X点附近，计算结果偏大于实验数据，导致了声子态密度计算结果"频移"现象的发生。

Point cloud models using discrete points as primitive element have many advantages such as data simple structure, compact space, and ability to express complicated surface in detail. However point cloud models usually can not be used directly.

点云模型以离散采样点为基元的几何模型，具有数据结构简单、存储空间紧凑，能够表达任意复杂表面细节，是造型所有表达方式中最自由的一种。

Environment radon is mainly from rock and soil in geological environment, but the research is not connected with geological environment now. On the basis of physical field, the theoretical distribution model of radon in soil and exchange model of earth—air are set up by using Fick diffusion law and Dacy law, and then the research of environment radon is linked with geological environment. This paper described how the evry parameter of the theoretical model influence the radon concentration in air. The results of research indicat that molecule diffusion of radon is different from it's eddy form. Under the condition of surface radon source, the model experiment is used to study the transportation and distribution of radon in medium. The data of experiment show the relationship between radon and depth can be described by exponent. If the radioelement is well—distributtion, the concentration of radon in different depth or in different point at the same depth change with time, but the accumulated exhalation amount of radon at different point on the surface of model are close in relative long time. The author studied the exchange of radon between mediums and verified the theoretical models too.

环境氡主要来自岩石、土壤，而目前环境氡研究中与地质环境结合很少，为此作者以物理场为基础，运用气体运移的费克扩散定律和达西定律，建立起壤中氡浓度分布与大地—大气间氡交换理论模型，首次在理论上将环境氡与地质环境结合起来；论文中从理论上讨论了模型中各参数对空气中氡浓度的影响，发现空气中氡运移的分子扩散方式和湍流扩散方式存在明显差异；通过面状氡源条件下的氡运移模型实验，研究了介质中氡的运移与分布，实验数据表明氡浓度随深度的变化规律可用指数函数描述，在放射性元素分布均匀的条件下，介质中不同深度和同一深度不同点的氡浓度随时间而变，但介质表面不同点在较长时间内向空气中累计释放的氡的量是相近的；同时研究了不同介质间氡的交换，并验证了所建立的理论模型；运用理论模型预测青岛市城区壤中氡浓度、江西临川一住宅区空气中氡浓度及江西二个测区的区域空气中氡浓度分布，取得了较好的效果。

Alex has detailed knowledge on building server rooms and networking systems for such companies as the world's largest mining website.He has experience with low speed data networking and global positioning systems and is now building WlFI and high-speed point-to-point networks for Ratel tv'fobile Communications Ltd. He also is a Business Development Manager in Ratel.

亚历克斯·施瓦茨不仅对制造服务器及网路系统有极丰富的知识，曾为世界最大的矿业公司建造网页，而且对低速数据网路及环球定位系统经验丰富，目前正为利达流动通讯公司建造WIFI及告诉点对点网路。

In chapter 1, regression models with censored data, LSE for censored regression models and LAD estimation for models with fixed censoring point are introduced. Then, we state our main results for LAD estimator of nonlinear regression models with randomly censored data, including consistency, boundedness in probability and asymptotic normality. The proofs of our main theorems are given in detail. In chapter 2, we state the main difficulty of obtaining numerical solution for censored LAD estimation, and recall the history of studies on this problem including some anterior algorithms.

在第一章，首先介绍删失线性回归模型的基本概念和性质，并对已有的估计方法，如最小二乘估计、固定点删失的最小一乘估计等做了简单的回顾；然后，把固定点删失线性回归模型的最小一乘估计方法推广到了随机删失、非线性模型的情形，并得到了估计量的一些渐近性质，如相合性、渐近正态性等；最后，给出主要结果的详细证明过程。

The light scattering data were well described by the crossover model proposed by Anisimov and Sengers, and the effective critical exponentsγandυshowed nonmonotonic crossovers from the 3D-Ising values to the mean-field ones as the temperature departed from the critical point. The coexistence curves exhibited that the values of effective critical exponents for the order parameter of the refractive-index decreased as the distance from the critical point increased, however after the regular terms were subtracted, the nonmonotonic crossovers from Ising to mean-field critical behavior were exhibited. The influence of sodium bromide on the trend of the crossover was small.

静态光散射数据符合Sengers和Anismov等提出的临界跨接理论，关联长度和渗透压缩系数的有效临界指数存在非单调跨接，盐对于跨接程度的影响不明显；共存曲线研究发现，随着偏离临界温度，折射率的有效临界指数逐渐减小，但是当与共存曲线相关的正规项的影响被排除以后，体系表现出从3D-Ising到平均场行为的非单调跨接，盐对于跨接程度的影响不明显。

Compare with other traditional data acquisition modules, the salient point of this system is that it can access Ethernet, achieved remote data acquisition. At the same time embedded by the uC/OS-II operating system, achieved a multi-task operating environment. In addition the system construct a kind of flexible 32-bit embedded hardware system composed by SOPC technology. The system can add or reduce components freely according to the requirement of customers.

与传统的数据采集模块相比，本系统的主要特点是可接入以太网，实现远程数据采集；同时系统嵌入uC/OS-II操作系统，实现了多任务的操作环境；另外本系统结合了SOPC技术在FPGA上构建了一个灵活的32位嵌入式硬件系统，该系统可以根据用户的需求进行自由裁剪。

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。

Finally, take the matching atom as the study data of biology. The feasibility of arithmetic is validated by experiment.There is no topological information at the point where scattered point set.

散乱点集中的点除了坐标信息外没有任何拓扑信息及特征信息，所以本文根据点与周围邻近点的关系对点进行分析，从而提取点的特征信息。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。