查询词典 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。

Triple exponential smoothing method and the combined of triple exponential smoothing method and Markov model both belong to time series method. Triple exponential smoothing method strongerly dependenced to short-term data. The combined method needed data which had more accurate; it must be the data of population quantity of many years continuously.

2三次指数平滑法、三次指数平滑法和马尔可夫链预测模型的组合预测方法都属于时间序列分析法，三次指数平滑法对近期数据的依赖性较强，组合预测法对数据的要求较高，必须是多年连续的种群数量变动数据。

Triplicity is established for "application security"and"data security"and "law security "ofHospital Data Security Managerment System , and the science reference can be offeredto solve problems ofhospital data security.......

探索建立"应用安全"、"数据安全"和"法律安全"三位一体的医院数据安全管理系统，为解决医院数据安全问题提供科学借鉴。数据安全；电子签名；身份认证

TRS ; System architecture ; System function ; Data organization ; Data center ; Load balance ; Data transmission

铁路客票系统；系统结构；系统功能；数据组织；数据中心；负载均衡；数据传输

The change phase is estimated by window and interpolation algorithm, and then a phase compensation function can be built accordingly. By multiply this function and the data sequence from the IFFT of the truncated data sequence spectrum in the time domain, the spectral leakages can be compensated when the new data sequence is transformed into the frequency domain by the DFT.

利用加窗插值的方法估计出该变化的相位，并利用估计结果构造出一相应的反相位函数，在时域上将这个反相位函数与由傅立叶反变换产生的离散序列相乘，得到新序列再通过一次傅立叶变换就可达到频谱校正的效果。

In data security, the transmission of data to unauthorized users by processes with legitimate access to data.

在数据保密学中，通过合法访问数据的进程将数据传输给未授权的用户的过程。

Example applications include financial tickers, network traffic monitoring, weband transaction log analysis, and sensor networks. A data stream is a continuous,time-varying, unbounded sequence of data-items, implying that online streamalgorithms are restricted to only one pass over the data.

由于数据流的特殊性：短时间内有大量数据连续到达，这些数据具有随时间动态变化的趋势，怎样对这些流数据使用有限存储空间进行快速处理以获取有用信息，为数据挖掘及其应用研究带来了新的机遇和挑战。

General in the burn process, the data need to be burning through your hard disk to send to the host IDE interface, IDE interface and then sent to the recorder's high-speed cache, the last burner to store the data in BufferMemory for recording information onto CD-R or CD-RW disc, these movements must be continuous, must not interrupt, if any one aspect of a problem, it will result in a normal burner can not write data, and a buffer zone underrun error, which was scrapped disc.

一般在刻录过程中，待刻录数据需要由硬盘经过IDE界面传送给主机，再经由IDE界面传送到刻录机的高速缓存中，最后刻录机把储存在BufferMemory里的数据信息刻录到CD-R或CD-RW盘片上，这些动作都必须是连续的，绝对不能中断，如果其中任何一个环节出现了问题，都会造成刻录机无法正常写入数据，并出现缓冲区欠载的错误提示，进而是盘片报废。

Managing wildlife: A spatial information system for GPS collars data Francesca Cagnacci, Ferdinando Urbano* Centre for Alpine Ecology, Viote del Monte Bondone, 38040 Trento, Italy Received 22 December 2007,-奖学金网; received in revised form 11 January 2008; accepted 14 January 2008 Available online 25 February 2008 Abstract ISAMUD (Integrated System for Analysis and Management of Ungulate Data) is an integrated and modular software platform developed to manage GPS collar data for wildlife management.

管理野生动物：空间信息系统的GPS衣领数据弗兰切斯卡cagnacci ， ferdinando尔巴诺*中心的高寒生态， viote Del Monte的邦多内， 38040 Trento ，意大利收到2007年12月22日；收到的订正形式， 2008年1月11日；接受2008年1月14日在网上提供2008年2月25日摘要 isamud （集成系统的分析和管理的有蹄类动物的资料）是一种集成和模块化的软件平台的开发管理全球定位系统的衣领数据野生动物管理。

Data query for proposition with universal quantifier and data query for implication proposition are two categories of the most practical and difficult data queries.

带有全称量词命题与蕴含命题的数据查询是数据库应用系统中最实用的两类查询，但也是最难的两种数据查询。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。