空间密度

一种基于空间密度特征的蛋白质结构相似性判定方法

A Method for Measuring Protein Structure Similarity Based on the Molecular Inner Spatial Density Distribution

计算了背散射电子角分布和空间密度分布。

The angular distribution and the spatial density distribution of the backscattered electrons on the film surface are also calculated .

用CCD相机测量中性束的空间密度分布

Measurement of density profiles of neutral beams with a CCD camera

X射线光子在固体中空间密度分布的蒙特卡罗模拟计算软件

Calculation software of Monte Carlo simulation of spatial distribution of density of X-ray photons in solid

利用CCD（电荷耦合装置）相机所成象的光强度峰值拟合中性束中三种能量成分的空间密度分布。

The density profiles of three energy components in neutral beams are derived from the image peaks in the CCD ( Charge Coupled Device ) camera pictures .

基于作者发展的物理模型和计算方法，编制了计算固体中X射线光子的空间密度分布的软件。

Based on the physical model and the calculating method developed by the authors , the calculation software of the spatial distribution of density of x-ray photons in solid is made .

采用局部半径R描述溶洞介质在大尺度上的离散程度，采用局部密度p描述溶洞介质在各溶洞分布区中的局部空间密度。

The local radius R described the dispersion degree of the random cave medium on large scale and the local density p described the local space density of the cave medium in each cave distribution area .

通过构筑PM空间密度函数，求出饱和岩石的应力应变状态方程，并模拟了其轴向应变径向应变滞后回线。

Through constitution of PM space density function , the stress-strain state equation for saturated rocks has been defined and the hysteresis loops of axial stress-radial stress has been simulated .

大攻角高速空间密度场显示

Spatial density visualization of high velocity at high angles of attack

基于光谱空间密度分析的边缘提取

Edge Extraction Based on Density Analysis in Spectral Space

并引入建成区空间密度作为定量指标，分析总结了乌鲁木齐市扩展变化的空间特征。

Then grade of building density was introduced as quantity index of the spatial features of urban sprawl .

空间密度依赖模型说明了空间竞争和空间传染对组织设立和组织存活的影响。

The model of spatial density dependence shows the relationships among spatial competition , spatial contagion and organizational founding and survival .

体验槇文彦的建筑就是去接触在他的作品中展现出来的那种独特的空间密度。

To experience Maki 's architecture is to come into contact with the distinctive density of the space unfolded in the works .

另外还证明了参量共振诱导的原子冷却技术也能提高原子的相空间密度。

It is also demonstrated that the cooling induced by parametric resonance can also increase the phase space density of the trapped atoms .

在有恒定外电、磁场的情况下，采用微观相空间密度方法导出了均匀等离子体的动力学方程。

A kinetic equation for uniform plasma in the presence of both constant electric and magnetic fields was obtained by the method of micro-density in the phase space .

卫星高度计以一种不同寻常的空间密度提供了高精度的海面状态数据，为全球性或区域性的海洋参量的即时监测提供了一条有效途径。

The capability of satellite altimeters to provide precise measurement of sea state has been demonstrated repeatedly , it provides an efficient way for monitoring global and regional oceanographic parameters .

而该体系空间密度关联效应的行为与铁磁相变之间存在着密切的联系，体系的内部结构和性质会受到密度关联效应的影响而发生改变。

The behavior of the spatial density correlation function of the system has a close relationship with the ferromagnetic phase transition . The structure and properties of system will change if the correlation effects changed .

中值滤波是图像处理中比较常用的滤波方法，但是它对窗口和数据点的依赖使它在处理空间密度较大的冲激噪声时受到限制。

The median filtering is a common method in image processing , but it is limited when it faces the swash noise of space high density , because it depends on the fixed windows and the data points .

针对传统的边缘提取方法大部分不适应高光谱数据的特点，提出了基于光谱空间密度分析边缘提取的思想。

The density analysis of super dimensional spectral space for edge extraction is presented . On the basis of the first principle component after grouping PCA , the fundamental methods of object oriented two times edges determination is proposed .

高度的并行计算处理、极大的空间存储密度是DNA计算的两大突出优点。

The two major advantages of DNA computing are its high parallelism in data processing and its higher storge capacity than normal systems .

目的：探讨一种新的重建技术改善CT图像的空间和密度分辨率，从而提高CT的诊断率。

Purpose : To explore application of a new processing algorithm in chest and nasopharyngeal CT scans for improving the resolution and quality of CT images .

理论计算采用HartreeFock方法和密度泛函理论，给出了该轨道的位置空间的密度分布图。

The theoretical calculations are obtained by using Hartree - Fock method and Density Function Theory .

结果表明，在光照射下，光生空穴俘获造成了aSi∶H中正空间电荷密度的增加，从而改变了电池内部的电场分布，提高了aSi∶H薄膜中的电场强度。

The results indicate that due to photo-generated hole trapping , the increased positive space charge density changes the electric field distribution and raises the electric intensity throughout the a-Si ∶ H film .

在尘埃等离子体中传播时重力波可被电子密度垂直分层的结构反射而导致波能量的集中，它产生的湍动所导致的空间电子密度的不均匀性分布是极区上空PMSEs的可能机制。

When the gravity waves propagate in the dust plasma with stratified electron density , it can be reflected and lead to energy focusing which may cause turbulence . The irregularity of the electron created by the turbulence could be the mechanism of PMSEs above the polar region .

SUDBC：一种基于空间单元密度的快速聚类算法

SUDBC : a Quickly Clustering Algorithm Based on Spatial Unit Density

根据空间分布密度进行楠竹区划的研究

Study on division of Phyllostachys pubescens by spacial distribution density

城市空间人口密度模型研究综述

An Econometric Study on the Urban Population Density Functions : A Survey

关于地震采集空间采样密度和均匀性分析

Analysis on spatial sampling density and uniformity of seismic acquisition

修正的格子空间的密度泛函理论在狭缝中的应用

Application of the Revised Lattice Density Functional Theory in Slits

城市人口空间分布密度衰减模型的一个理论证明

A theoretical proof of Clark 's model on spatial distribution density of urban population