查询词典 data management

In the light of field features in desertification areas, the data quality and band combination of different bands are assessed, the indicators, principles and methods for data assessment and band option are put forward to, and optional band combination for desertification monitoring is determined primarily. The data pre-treatment model for desertification monitoring is developed after studying the pre-treatment algorithm of restoration and rebuilding of hyperspectral resolution data. The spectral features and variation rules of different objects in experimental areas are understood and analyzed. The different classified methods are given and discussed on the basis of characteristics of desertification region. The remote sensing quantitative retrieval model for the appraisable factors of desertification monitoring are founded.

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、波段组合进行定性和定量的评价，提出用于数据评价、波段选择的指标、原则和方法；初步确定一个适用于荒漠化监测的优化波段组合，建立适合于荒漠化监测的数据预处理模式；初步分析、掌握研究区内各类地物的光谱特性及变异规律；针对荒漠化地区特点对多种分类方法进行探讨分析；建立荒漠化监测主要评价因子的定量反演模型。

Finally, from the view point of recording high-fidelity data page, we optimized the storage system by using beam shaper in signal beam, and redesigning geometry to increase the uniformity of reference beam. In the final demonstration experiment, we encode 10KB Flash to four data pages, each including 512×512 bits. The data pages are 1:2 pixels matched. These four data pages were stored in a single point in a photopolymer media of Aprilis Corporation by using angle multiplexing method, and successfully retrieved.

根据我们设计的串行二进制数字数据与数据页之间的编解码方法，将一段10KB大小的Flash视频编码为4幅512×512幅面，1：2匹配的数据页，并成功的在美国Aprilis公司光致聚合物材料中完成了这4幅数据页的单点角度复用存储，再现数据页经过偏移补偿算法和PMSF算法处理后的平均原始误码率为2.4×10-4，这样低的误码率完全满足后期软解码的需要，并使得解码后的数据可以满足用户误码率的要求。

System computes combined navigation system of GPS/IMU, VECTOR and ascendable geometry stable platform, proceeds in space registration and time synchronization, calculates the systems accurate space, time, stance and course. Planar laser scanning data was filtered, registered space-wisely and time synchronously and fuse computered with other sensors data, extracted to 3D solid model of characteristic information of the road and outside of street, continuously extracted to point, line and plane, reconstructed combined with CCD camera data and visualized to 3D model true scene, finally implement acquisition and process of 3D space data timely, initiatively and integrally.

该套系统通过对GPS/IMU组合系统导航解算、VECTOR和升降几何平台进行空间配准、时间同步处理，计算出系统精确可靠的空间时间和姿态航向信息，二维激光扫描仪数据经过滤波去噪、和其他传感器数据融合、三维空间计算，解算出道路和两侧街景的三维空间数据模型，对空间激光数据模型提取点线面特征值，结合CCD相机数据进行立体重建和可视化，实现了实时、主动、完整地获取和处理三维空间数据信息。

System computes combined navigation system of GPS/IMU, VECTOR and ascendable geometry stable platform, proceeds in space registration and time synchronization, calculates the system??s accurate space, time, stance and course. Planar laser scanning data was filtered, registered space-wisely and time synchronously and fuse computered with other sensor??s data, extracted to 3D solid model of characteristic information of the road and outside of street, continuously extracted to point, line and plane, reconstructed combined with CCD camera data and visualized to 3D model true scene, finally implement acquisition and process of 3D space data timely, initiatively and integrally.

该套系统通过对GPS/IMU组合系统导航解算、VECTOR和升降几何平台进行空间配准、时间同步处理，计算出系统精确可靠的空间时间和姿态航向信息，二维激光扫描仪数据经过滤波去噪、和其他传感器数据融合、三维空间计算，解算出道路和两侧街景的三维空间数据模型，对空间激光数据模型提取点线面特征值，结合CCD相机数据进行立体重建和可视化，实现了实时、主动、完整地获取和处理三维空间数据信息。

It analyzes and researches the data pretreatment in Web log mining, the data pretreatment technology of the Web log data Mining being analysis and implementation,that is Pre-work of data mining in associational rules and clustering algorithm.

分析研究传统的数据预处理过程，在Web日志的数据结构挖掘中的数据预处理技术进行了分析与实现，是实现关联规则与聚类数据挖掘的前期工作。

The temporal middleware does not support the index of bitemporal data, which include the transaction time and valid time. By using the proper data transformation and query transformation, the bitemporal data can be transferred to the data of 4R index.

摘要当前的时态数据库中间件不支持包含事务时间和有效时间的双时态数据索引，通过使用适当的数据变换和查询变换，可将双时态数据转化为R树可索引的数据。

A mass of incomprehensible original data is extracted and inferred into meaningful and consultable data to some certain users. meanwhile, by network information processing, the data transmission account and latency are decreased; the energy efficiency and data accuracy are increased.

传感器网络的网内信息处理技术在原始采集数据的基础上，将大量的信息处理和计算移植到传感网内部进行，从海量的、杂乱无章的、难以理解的原始数据中抽取并推导出对于某些特定的用户来说具有特定意义和判决参考价值的数据。

Methods: We selected 71 patients with acute hemorrhagic stroke as the study group who were hospitalized within 24 hours after onset in the 1st 3rd 5th 7th 9th 11th 13th 15th day of hospitalization and prior to the usage of dehydrant. We selected 30 normal people as the control group. We collected the data of cerebrovascular hemodynamic index including cerebral blood flow and velocity, cerebrovascular resistance, cerebrovascular elasticity ,dynamic resistance and critical pressure for each patient . We compared the data between the study group and control group ,also we compared the data in the different time after disease onset and the data of affected side and non-affected side by using SPSS software.

选择急性出血性脑血管病患者71例为观察组，正常人30例作为对照组，观察组以发病时间为起点，分别在发病后第1、3、5、7、9、11、13、15天且在使用脱水药前行脑循环动力学检测仪检测获得脑循环动力学参数，包括血流速度、血流量、血管弹性指标，血管阻力、血管调节功能指标动态阻力及临界压力数值，对观察组和对照组的各项数值进行比较，及观察组在发病后的不同时间进行前后比较，且对患侧和健侧数值之间进行比较，所得数据使用SPSS软件处理。

The Chinaport Network System puts electronic data to the public data centre by modern information technology and the National Telecommunication Network . In the platform user can share and interchange data. Adminstration departments can verify electrionic data each other through network enterprises can get transaction through network.

中国电子口岸是国务院有关部委将分别掌管的进出口业务信息流、资金流、货物流电子底帐等数据集中存放到口岸公共数据中心，为各行政管理部门提供跨部门、跨行业的行政执法数据联网核查，并为企业提供与行政管理部门及中介服务机构联网办理进出口业务。

The positioning result of phase and broadcast ephemerides are gained using time-satellite differential model after canceling SA, the precision for 24 hours phase observation data is about 1.1 metre,the precision for 2 hours phase observation data is about 1.3 metre,the precision for 1 hour phase observation data is about 1.6 metre ,the precision for 20 minutes phase observation data is about 2.7 metre.

采用时星差模型得到取消SA后相位和广播星历的定位结果：用24小时的相位观测数据定位精度在1.1米水平；用2小时的观测数据定位精度在1.3米水平；用1小时的观测数据定位精度在1.6米水平；用20分钟的观测数据定位精度在2.7米水平。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48