用户自定义报表管理系统          下载免费PDF全文

贺晓辉  张晓萍 《大气科学学报》2001,24(1):143-147

针对MIS开发中的报表问题,结合PowerBuilder中DataWindow的方式和数据库管理模式,利用PowerBuilder设计开发了一个用户自定义报表管理系统,可对多表、多字段进行任意组合查询、统计,并对报表进行了时效、权限、分类管理。本文介绍了软件的设计原理、开发方法及使用方法。  相似文献   

Incremental Growth of Plains-Type (Compactional) Folds in a Cratonic Environment as Revealed by the Sedimentary Sequence     

Merriam  Daniel F. 《Natural Resources Research》2003,12(1):27-40

The enigma of the origin and development of plains-type folds, as they were christened in the early 20th Century, essentially has been solved. The folds, a considerable distance from the tectonic disturbance, were formed by draping of sediments over differentially displaced Precambrian basement fault blocks. These Precambrian basement fault blocks controlled the location, size, and shape of the folds. Forces were transmitted through the rigid basement causing readjustment along the indigenous fracture/fault pattern formed much earlier. In the U.S. Midcontinent, the crystalline basement is overlain by a thin veneer of sediments, and once the structures were formed, they continued to develop as evidenced by features in the overlying sediments. As the stress was transmitted through the basement and then relaxed, the fault blocks moved differentially in concert to these outside forces. Sediment compaction and nondeposition over structural topographic highs reacted accordingly to form the features as seen today. To determine the structural history, structural closure on different horizons on the anticline is plotted in their appropriate stratigraphic position at depth. This gives a compaction line for each tectonically coherent segment. Similar segments show a relatively straightline with offsets at major unconformities indicating breaks in the continuum. It is at these breaks that the section can be stretched until the compaction line matches as a continuum with the resulting gap giving the approximate amount of missing section for that part of the rock column. Conversely, the amount of closure on a structure at depth for each line segment can be estimated by extrapolating downward in that segment. This technique to determine depth of burial and thus the amount of missing stratigraphic section from well data at numerous locations has been compared with estimates made by other methods and the results are similar. Where no other data are available or for quick estimates, then, it is proposed that this approach will give reasonable results and that the values can be used as a constraint in basin modeling.  相似文献   

我国首座卫星信道数字化地震台网落成   总被引：1，自引：0，他引：1  

赵永  王斌 《国际地震动态》1998,(9):18-21

文章较为详细地介绍了我国第一座卫星信道数字化地震观测台网各配套仪器的性能,使用环境及整套系统的运行情况和目前在地震观测中所起的作用。作者展望了该系统的发展前景及其对我国地震观测事业的影响。  相似文献   

编制煤炭资源储量报告常见问题及注意事项     

赵世煌 《中国煤炭地质》2010,(9):83-86

《煤、泥炭地质勘查规范》实施以来,因对规范、规定、通知、办法的理解差异,在煤炭资源储量报告评审、备案工作中出现了诸多问题,如矿权范围确定、资源储量估算、煤质分析、探采对比、煤层气综合评价、技术经济评价、报告编制等等,针对该类问题,提出了其相应的界定标准和注意事项,以期提高报告质量。  相似文献   

地理国情普查工作报表的特性与作用研究     

李军  梁安宝  宗鑫 《东北测绘》2014,(6):35-36

地理国情普查工作报表是地理国情普查项目管理的基本措施和途径,本文对地理国情普查工作报表的特性和作用进行了论述,以期对从事地理国情普查的生产单位和管理单位起到指导作用。  相似文献   

震情值守信息服务平台设计与实现     

吴凌杰  陈吉锋  孟真  严俊峰 《地震地磁观测与研究》2022,43(3):140-146

快速发展的互联网技术为进一步提升震情服务水平和能力,拓宽地震信息发布手段和渠道,扩展服务覆盖范围,智能化、规范化震情值班工作提供了新的方法。基于B/S架构,采用高内聚低耦合的3层框架结构,结合API混合加密和数据源监控技术,设计开发震情值守信息服务平台。在保障数据安全和系统稳定的基础上,实现了地震信息的多渠道发布和接收,增加了地震信息服务产品种类,使震情值班工作更加智能、规范,有效提高了地震行业的信息化水平。  相似文献   

基于开源GIS的地震灾情速报信息收集与处置研究     

王斐斐  韩贞辉  樊华  宋鹏展 《震灾防御技术》2022,17(1):188-196

针对河南省灾情获取效率低的现实问题,设计基于QGIS的微信小程序,实现灾情速报员属性数据空间化,并自动分配拨打电话任务,灾情调查人员及时将通过拨打电话获取的灾情信息快速上报,实时动态展布,并快速统计灾情速报信息,生成地震有感范围图和地震灾情信息汇总报告,为地震抗震救灾指挥部决策提供支持,满足河南及邻区小震、弱震较多地区地震应急、应急演练工作需求,也为其他应急系统建设提供参考。  相似文献   

SROCC:海洋热含量变化评估     

成里京 《气候变化研究进展》2020,16(2):172-181

工业革命以来,大气中温室气体不断增加,驱动了全球变暖。IPCC第五次评估报告(AR5)指出,人类排放的温室气体导致的地球系统能量增加中90%以上都被海洋吸收,使得海洋增暖,海洋热含量增加。IPCC最新发布的《气候变化中的海洋和冰冻圈特别报告》(SROCC)发现：自1970年以来,几乎确定海洋上层2000 m在持续增暖。1993—2017年间的增暖速率至少为1969—1993年的2倍,体现出显著的变暖增强趋势。此外,在20世纪90年代以后,2000 m以下的深海也已观测到了变暖信号,尤其是在南大洋(30°S以南)。在1970—2017年间,南大洋上层2000 m储存了全球海洋约35%~43%的热量,在2005—2017年期间增加到45%~62%。基于耦合气候模型预估,几乎可确定海洋将在21世纪持续增暖,2018—2100年间海洋热含量上升幅度可能是1970—2017年间的5~7倍(RCP8.5情景)或2~4倍(RCP2.6情景)。变暖导致的热膨胀效应贡献了1993年以来全球海平面上升的约43%。  相似文献   

2000年度上海天文台卫星激光测距观测报告     

杨福民  张忠萍  陈婉珍  陈菊平  徐永平  李鑫 《中国科学院上海天文台年刊》2002,(1)

介绍了 2 0 0 0年度上海天文台卫星激光测距观测和系统的改进情况  相似文献   

A STATISTICAL APPROACH TO THE PROBLEM OF MISSING SPATIAL DATA USING A FIRST-ORDER MARKOV MODEL*     

Robert Haining  Daniel A. Griffith  Robert Bennett 《The Professional geographer》1984,36(3):338-345

Geographical data sets sometimes contain missing observations that need to be estimated. A statistical approach to the problem is discussed for multivariate normal spatial data sets satisfying the first-order spatial Markov property with constant mean, where the information at neighboring or contiguous observed sites is used to estimate the missing values. The completed data are used to estimate the parameters of the distribution. The procedure is iterative. The approach is a special case of the Orchard and Woodbury missing information principle. The paper concludes with an illustrative empirical example using rainfall data from an area of Kansas and Nebraska. The quality of the estimates for different sites are compared.  相似文献