查询词典 macro data

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的&同物异谱&现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被&红边&范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

In the research about ATIS traffic information fusion model and structure, the paper has introduced the data fusion technology correlation theories, including the data fusion principls, the concept and the levels, and summarized the data fusion technology in the traffic domain application and development.

在ATIS交通信息融合的模型和结构研究中，论文介绍了数据融合技术的相关理论，包括数据融合的原理、概念和层次，总结了数据融合技术在交通领域的应用与发展。

A NF2 extended data model with object—oriented features is presented, and its semantics is formally described. The data model has the following features. Its database schema has NF2 extended structures, the data values can be either atomatic or composed by'set'and'tuple'constructors with a fixed order. The'table'concept unifies classes and relations.

该模型的主要特点有：数据库模式是扩展的非一范式结构，数据值既可以是原子的，也可以通过构造符set，tuple以特定的顺序反复复合而成；用表的概念统一了类和关系；对象标识既可以由用户定义，也可以由系统定义。

A technique of massive scale data management and attemperation based on viewpoint. This algorithm effectively changes massive scale terrain into large scale ones to handle. Utilising the continuity of the viewpoint movement and the relativity of fore-and-aft frames, it manages and attempers the terrain data leading to data decrease in a large range. This algorithm solves the problem of the rendering rate, and realizes a rapid real-time ramble in massive scale terrain scenes.

提出了一种基于视点的场景数据管理调度技术，有效地将海量地形转换为大规模地形进行处理，并利用视点运动的连续性和前后帧的相关性，管理调度地形数据，大幅度地降低了数据量，解决了绘制速度的问题，实现了海量地形场景的实时快速漫游。

A dynamic computer simulation model of winter wheat was established from the data of the fields at AUH(the Agricultural University of Hebei) during 2000-2001 and validated from the data of the experiment of nitrogen, phosphorus and potassium at Shenze county during 1985-1986. This model was used for reference of information not only from field data but also from other winter growth and development models.

本文是参考了前人对于小麦的生长发育和钾素等生理因素的生理效应的研究，在2000～2001年度田间小区试验和1985～1986年氮、磷、钾试验的基础上，结合大田生产的实际情况，构建了钾素影响冬小麦生长发育和产量形成的计算机模拟模型。

After that, a numerical model about Zhejiang shore tide is established by mike21 program. After validating the good agreement between simulated results and observed ones, the planar hydrodynamic flow of this ocean area is analysed in detail. Then co-tidal and co-range chart of each main tide is drew based on the computational result. It can be found that each co-tidal and co-range chart that is based on the simulated result is suitable to the co-tidal and co-range chart that is deduced from autoptical data, besides, the modle co-tidal and co-range chart can perfect the co-tidal and co-range chart from autoptical data where autoptical data is too hard to get .

在这之后，使用MIKE21水动力模块建立起浙江近海海域潮波模型，在模型潮位、潮流流速流向验证均合理的基础上，分析了计算得到的二维水动力流场，最后将模拟结果绘制出浙江近海M2、S2、N2、K1、O1主要分潮的同潮时图，并将其与实测同潮时图比较，发现各分潮等振幅线及同潮时线相同或相近值的等值线位置及走势基本一致，而且模拟得到的同潮时图对实测资料覆盖不到的海区做了适当补充。

This study conducted a secondary data analysis based on the data from 1999 Survey of Health and Living Status of the Middle Aged and the Elderly in Taiwan, provided by the Bureau of Health Promotion, Department of Health, R.O.C.. The study subjects were elders over 65 years old, and the number of valid samples was 2890. The data were analyzed with descriptive statistics, one-way ANOVA, Chi-square test(X2), Independent-Samples t-test, point biserial correlation, the Pearson product-moment correlation, logistic regression analysis, multiple regression analysis and hierarchical regression analysis.

本研究乃是使用行政院卫生署国民健康局人口与健康调查研究中心执行之「台湾地区中老年身心社会生活状况长期追踪调查系列」1999年调查资料进行次级资料分析，研究样本为年满六十五岁以上之高龄者，有效样本数为2890人，针对所得的资料，以描述统计、单因子变异数分析、卡方检定、独立样本t检定、点二系列相关、皮尔森积差相关、逻辑回归、多元回归分析及阶层回归分析等统计方法进行分析。

Based on observation data, the development process of the breach of landslide dams due to over topping may divided into 3 modes: vertical erosion, breadthwise extension and regression erosion of dam slope. A mathematical model describing the gradual failure process of the landslide dams is established based on the formula expressing the high intensity erosion obtained from experimental data, which can integrate the 3 modes of breach development process together. The validity of the model is verified by observation data.

根据一般滑坡堰塞坝特点和实际观测到的堰塞坝溃口发展规律建立了一个溃口扩展模式，并将溃口扩展过程归纳为溃口垂直下切、横向扩展和坝坡溯源冲刷3种主要表现形式，采用通过试验资料建立的高强度泥沙冲刷计算公式将这3种表现方式联系在一起，建立了堰塞坝逐渐溃决数学模型，并利用实测溃坝资料验证了模型的可靠性。

The problem of cartographic generalization of spatial data concerns deriving spatial data with proper level of details when the data are used for an application.

制图学中的制图综合就是为不同的应用生成恰当的细节层面。

The results in these three regions have been given that (1) Ephedra, as dry and desert vegetation, the average percents are 7.7 in Yang Lake, 4.2 in Kunlun Rive, 7.5 in Doucuo Lake, and the datum in Yang Lake is higher than others;(2) Gramineae, as humid vegetation, the average percents are 1.2 in Yang Lake, 4.9 in Kunlun Rive, 12.0 in Kuhai Lake, increasing gradually from west to east;(3) Artemisia, as humid vegetation, the average percents are 22.2 in Yang Lake, 43.6 in Kunlun Rive, 48.8 in Kuhai Lake, increasing gradually from west to east, too;(4) Chenopodiaceae, as dry vegetation, the average percents are 52.1 in Yang Lake, 42.4 in Kunlun Rive, 11.5 in Kuhai Lake, however, decreasing gradually from west to east;(5) Artemisia/Chenopodiaceae ,the average data, as environmental changing index, are 0.45 in Yang Lake, 1.23 in Kuniun Rive, 5.59 in Kuhai Lake, increasing gradually from west to east, and there is higher data scope during 3.0~4.3 ka BP in these two lake sediment profiles, then decreasing;(6) Ephedra/Artemisia, data are all increased but the amplitude is different, such as 0.45 in Yang Lake, 0.34 in Kunlun Rive, 0.28 in Kuhai Lake, decreasing gradually from west to east.

代表气候湿润的禾本科花粉平均百分含量，三个地区分别为：1.2%、4.9%、12.0%，从西向东数值逐渐升高。③代表气候湿润的蒿属花粉平均百分含量，三个地区分别为：22.2%，43.6%，48.8%，从西向东数值逐渐升高。④代表气候干旱的草科花粉平均百分含量，三个地区分别为：52.1%，42.4%，11.5%，从西向东数值逐渐降低。⑤依据蒿属、藜科花粉百分含量，计算出环境变化指标，蒿属／藜科值，三个地区的平均值分别为：0.45，1.23，5.59，从西向东比值逐渐升高，⑥麻黄属／蒿属值，在全新世晚期，三个地区都呈上升趋势，但幅度存在差异，分别为：0.45，0.34，0.28，从西向东数值逐渐降低。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我