时空图

通过该模型数值模拟生成的时空图和列车时间加速度图等，我们探讨轨道交通流特性，如分析了列车加速度、位移和车头距的变化情况，考察了发车间隔对列车运行的影响。

We can get the space-time diagram , time-acceleration diagram and so on by simulating the model to investigate the rail traffic flow features .

通过设定参数表示相关任务作业关系，借助数学演算得到相关任务并行作业条件，同时提出调机运用时空图概念。

Through the presentation of the related tasks correlation by setting some parameters , it obtains the parallel operating conditions by mathematical calculations , and proposes the concept of shunting locomotive operating space-time diagram .

时空图尚可展示相邻部位的复极离散和U波分布。

Space-time maps indeed clearly showed the dispersion of repolarization among neighboring leads , and the distribution of U wave .

获得了Weyl坐标下真空C度规完整的时空图。

The complete space time diagram of the vacuum C metric in the Weyl coordinates has been obtained .

从仿真结果生成的时空图上我们可以看出，本文模型所生成的时空图所出现的阻塞相要比NS模型所出现的阻塞相平缓。

We can perceived from the time-space diagram , that the jam phase which is generated by this method is more gentle than the jam phase generated by the NS modal .

通过对DVE镜头转换的模型和特性的分析，指出了目前基于二维时空图处理算法的局限性，进而提出了一种基于转换曲面的DVE检测算法以解决这个问题。

In this paper , the limitation of the exiting 2-D spatial-temporal image analysis methods is pointed out through the analysis of DVE transition model , and a transition-surface-based DVE detection method is proposed .

时空图对时钟佯谬诠释的应用

The Operation of Space-time Diagrams for Interpretation of Clock Paradox

利用时空图对时钟佯谬命题中的三个论断作了全面诠释。

This paper carries out comprehensive interpretation on three inferences in the proposition of clock paradox by space-time diagrams .

目的用体表心电标测时空图法探讨复极离散空间分布和临床价值。

Objective To examine the spatial distribution and dispersion of repolarization using space-time map of body surface potential mapping ( BSPM ) and their clinical value .

通过时空图探讨了地铁列车流特性、通过速度时间位移图分析了它们的关系。

By means of speed-time-position graphs , the paper investigates some important characteristics of subway train flow and analyzes the relationships of speed , time and position .

利用时空图，详细地分析了四腿机器人行走时三种基本步态的稳定性，在保证其行走稳定性的基础上了探讨了一种参数化的多方向动态行走控制策略。

This article analyzes the stabilities of three basic walking gait of quadruped robot by using space-time diagram , and discusses a dynamic omni-directional and parameterized walk control strategy to achieve the walk action on the basis of ensuring walking stability .

用时空能量图和小波变换方法表征和识别步态

Gait Representation and Recognition Using Spatio-Temporal Energy Image and Wavelet Transformation

本文给出了各研究区的范围、各活跃期的具体时间、x~2检验结果和时空分布图。

The scope of each studied region , the x test values and figures of space-time distribution of events are given .

先后提出了基于贝叶斯网络增强预测模型的跟踪方法和基于时空概率图模型的跟踪方法。

We propose a Bayesian network enhanced prediction based multiple facial feature tracking algorithm and a spatiotemporal graphical model based one .

利用扩展的三变量布鲁塞尔模型，得到了新的时空斑图，其中包括振荡四边形斑图、调制条纹斑图以及螺旋波斑图。

New spatiotemporal patterns including oscillating square pattern , modulated stripe pattern and spiral pattern have been found in a three-variable Brusselator model .

通过位置相关函数、速度时空演化图、驰豫时间和序参量的计算，研究优先随机慢化对交通流的影响。

By computing the spatial correlation function , the evolution plots of velocity , the relaxation time and the order parameter , the effect of top-priority of randomization on traffic flow is studied .

本文首先根据地震地质条件和震中分布，将宁夏划分出四个地震带，并绘制了19701988年各地震带的地震时空分布图。

Based on the seismo-geological conditions and epicentral distribution , Ningxia region is divided inta 4 seismic belt and time-space distribution of earthquakes in each belt in 1970-1988 are drawn in this paper .

根据新闻视频的特点，着重从时间以及空间的角度进行统计分析，并设计了两种可视化方法：时间趋势图以及时空分布图。

Considering news videos ' characters , it statistics and analyses news videos from the point of view of time and space , and de-signs two visualization methods : time-tendency graph and time-space distribution graph .

把一幅图像每个像素的值用四元数表示，并利用其傅立叶相位谱来获得时空显著图。

The value of each pixel in an image is represented as a quaternion composed of intensity , color and motion feature , and its phase spectrum is used to calculate the spatio-temporal saliency map .

近几十年来，时空斑图动力学一直是非线性科学研究的热点，通过对他们的研究，有助于了解发生在自然界和人类社会中的现象。

In recent decades , the investigation of spatiotemporal pattern dynamics has become a hot topic of nonlinear science . The investigation can help us to understand the phenomena that occur in nature and human society .

杭嘉湖平原土壤养分时空分布图结果进一步解释了有机质、全氮、有效磷和速效钾在近20年间的变化格局，为以后的农业管理提供了科学依据。

The spatial and temporal distribution maps of SOM , TN , AP and AK further explained the patterns of their change during the past 20 years , which lay the foundation of agricultural management in the future .

提出一种基于时空能量图的步态特征弱周期性表示方法，给出了步态特征弱周期性和步态序列的时空能量图的定义，以统计分析的方式证明了这种特征表示对于噪声的干扰不敏感。

A gait feature expression with the semi-periodicity based on the Spatio-Temporal Energy image is described , in which the semi-periodicity and the Spatio-Temporal Energy image are defined formally . And it has been proved insensitive to noise by the statistical analysis .

介绍了用时空速度变化图寻找拥挤源头以及选择交通控制措施的方法。

Finally , spatial temporal speed figure was introduced to help find the headstream of congest .

时空演化斑图给出了不同初始车辆数下由稀疏波和激波导致的不同交通相的分离。

The spatio-temporal pattern gives the segregation of different traffic phases caused by the rarefaction wave and shock wave for a certain initial vehicle number .

最后，融合时空轮廓能量图和局部尺度不变特征作为人体行为特征表征向量，使用最近邻分类实现行为识别。

Finally , the human action is represented by fusing the energy images and local scale-invariant features , and recognized by using the nearest neighbor classifier .

通过时空效率关系图，寻找即能充分发挥系统计算能力又能缩短计算时间的平衡点。提出用空间表示时间的计算模型。

Using the time efficiency and space efficiency diagram , the equilibrium point to make effective use of system resources and shorten the calculating time can be found . A calculating model to use space to express time is presented .

通过描绘出空间振幅变化图和时空行为发展图，定性分析了传输线沿线电压的时空混沌图案动态，为研究和理解时空混沌提供了一种良好的可求解模型。

The pattern dynamics in spatiotemporal chaos of the voltage wave on the lossless transmission line are qualitatively analyzed by depicting space-amplitude plot and space-time diagram . A good model with solution is established to study and understand the spatiotemporal chaos .

首先将所有的目标视频模板提取出来并提前存入数据库，本文采用了改进的背景减除法&时空切片流图法，提取的清晰的半透明台标的二值化模板。

At the first step , extract all the target video modules and save them into database ahead of time , the improved background minus division algorithm : spatio-temporal slice algorithm adopted in this article , extracts binary template of station symbol which is clear and semi-transparent .

设计并完成了观测交变电场驱动下时空混沌液晶斑图演变的实验。

Then we designed and performed the experiment of " Spatiotemporal chaotic pattern evolution and phase transition liquid crystal under AC driving " .

采用这一方法，制成了广州地区水体污染时空分布卫星影像图，并结合地面实际分析和调查资料，初步总结了珠江广州段水体污染的时空分布规律和污染变化趋势。

Time spatial distribution images of water pollution are made through the above techniques , and the time spatial distribution characteristics and changing trends are summarized through combination to ground analytical and investigation data of water quality .