查询词典 spatiotemporal

The Three-North Shelter Forest Program covers 13 provinces of China, which brings great influence to the eco-environment of North, Northeast and Northwest China (Three-North Regions). In this paper, the vegetation cover in the Three-North Regions was estimated by using a dimidiate pixel method based on the MODIS-NDVI data in August 2001 and 2007, with its spatiotemporal changes analyzed.

以像元二分模型为基础，构建了基于归一化植被指数的植被覆盖度定量估算模型，并利用MODIS-NDVI时间序列数据，估算了三北防护林工程区2001年8月和2007年8月的植被覆盖度，分析了三北防护林工程区植被覆盖度的时空变化特征。

In part two, the optical spatiotemporal pattern in ring optic cavity is investigated. Using delay feedback with spatial perturbation method, the system shows roll, square, hexagon, homocentric circle,"honeycomb"and"snowflower" pattern with different spatial perturbation functions. Different patterns can be coexist and compete each other with the same perturbation function, which is the new character of this optical system with delay feedback.

第二部分，利用延时反馈的空间微扰方法研究了环形腔中二能级介质的光学时空斑图的控制，在不同的微扰函数作用下，出现了滚筒状、四方形、六角形、蜂窝状、同心圆以及&雪花&状等不同的斑图，并且在相同的微扰函数下出现了不同斑图之间的竞争，这种竞争是我们发现的这一具有空间微扰的延时反馈非线性光学系统光学斑图的新特征。

According to the flood data of Urumqi River from Yingxiongqiao hydrometric station over the past 49 years,the spatiotemporal change characteristics of the Urumqi River flood are briefly analyzed with various methods.

主要依据英雄桥水文站实测洪水资料对乌鲁木齐河洪水时空变化特性进行简略分析，通过多种方法分析了乌鲁木齐河49a来洪水的变化趋势。

At the same time, Geo-Spatial System is a spatiotemporal system. Thus, the inbeing of Geo-Spatial can't be revealed until the concepts of time and space are integrated into one uniform framework.

同时，地理系统还是一个时空耦合系统，只有同时把时间及空间这两大范畴纳入某种统一的基础之中，才能真正揭示地理复杂系统的本质规律。

As it known, mistakes in spatiotemporal expression of critical genes result in congenital cardiovascular diseases. Furthermore, studies on high risk population of cardiovascular disease have also suggested the relationship between noncongenital cardiovascular diseases and genetic factors.

在心血管系统疾病的研究中已发现，有些是由于某些基因在时空上的表达紊乱所引起，而对部分心血管系统病症高发人群的研究也证明部分后天形成的心脏病与遗传因素有关。

As it known, mistakes in spatiotemporal expression of critical genes result in congenital cardiovascular diseases. Furthermore, studies on high risk population of cardiovascular disease have also suggested the relationship between noncongenital cardiovascular diseases and genetic factors.

在心血管系统疾病的研究中已发现，某些基因在时空上的表达紊乱可导致先天性心脏病，而对部分心血管系统病症高发人群的研究也证明部分后天形成的心脏病与遗传因素有关。

Collective behaviors are important emergent phenomena in complex systems,from which macro- scopic spatiotemporal or functional structure will emerge via interactions between microscopic individuals.

复杂系统中的集群行为是复杂系统涌现性的重要表现之一，它通过微观个体之间的相互作用，在宏观上表现出一定的时空或功能有序结构。

Based on the 1992-2007 remote sensing images and field survey data, and by using the landscape ecology theories and the method of conversion matrix, the spatiotemporal dynamics and landscape pattern of Spartina alterniflora in Yancheng coastal wetlands were analyzed by GIS. The results showed that the total area of S.

基于1992-2007年的遥感影像和野外调查数据，在地理信息系统的支持下，应用景观生态学理论和转移矩阵方法，定量分析了江苏盐城滨海湿地外来种互花米草的时空动态及其景观格局的演变规律。

This paper has analyzed the functions and features of Spatiotemporal Database and its model in brief.

首先简要分析了时空数据库的功能和特点及几种典型的时空数据模型。

Data model is one of the central activities in the research of spatiotemporal database.

时空数据模型是时空数据库的研究重点之一。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。