基于MapGIS组件式开发的河南省滑坡监测预警系统设计与实现

以河南省几处滑坡隐患点为研究对象,根据工程地质勘查与现场监测资料,基于MapGIS组件式开发技术和ZedGraph绘图技术设计开发了河南省滑坡监测预警系统。该系统使用MapGIS提供的控件和组件搭建了一个简易的、可交互的GIS平台,并在建立灾害监测点动态监测数据查询功能的基础上,通过9种常用的滑坡灾害预报模型,实现了不同滑动阶段下滑坡的预测预报,从而从时空上实现了对滑坡灾害的全面监测预警,同时通过SQL Server数据和MapGIS数据的结合以及MapGIS COM组件的应用,实现了从监测数据采集、计算分析到预警发布流程的自动化,为河南省滑坡灾害的防灾减灾工作提供了决策依据。     

海湾大桥施工动态安全预警系统的研究

针对海上施工建设单位多、人员复杂、受气象灾害影响大,而目前没有施工安全预警系统的现状,提出青岛海湾大桥施工动态安全预警系统。该系统分为8个模块,从静态的管理机构、动态的现场安全状况和管理方法上进行施工安全管理。其中,静态的管理机构是管理的基础;动态的现场安全状况是全面、及时反映施工现场情况,便于及时发现问题,进行环境预警,而且有利于实现施工建设业主、施工方和监理方3方的相互监督。形成了一个较为全面系统的安全管理体系,建立了涵盖施工建设工程3方的预警管理系统,实现动态的安全管理、环境灾害预警和办公自动化。     

基于大数据分析与认知技术的空气质量预报预警平台

为深入认识区域大气污染现象规律,完善并提高城市空气质量预报预警能力,提高大气污染治理决策支持能力,开展城市污染成因分析与空气质量预报预警研究是十分必要的。本文针对环境大数据时代下的城市空气质量预报,提出了一种基于大数据分析与认知技术的专业先进的大气环境业务应用系统体系。该体系基于底层统一的数据资源中心,融合各类不同类型的空气质量监测、不同预报系统的产品数据以及基础辅助数据,建立数据汇交、共享、质控管理机制,通过上层预报预警、综合分析、案例分析、应急决策支持四大子系统,从多模式集合预报结合专家调优支撑高性能预报会商应用,从大数据融合时空关联分析深度挖掘大气复合污染特征与污染成因,从多维度历史污染过程和天气形势全自动化认知分析支撑重污染过程研判,从业务化仿真情景方案与污染溯源助力专业应急决策。最后,通过在北京市环境保护监测中心的系统实现证明体系的高性能、稳定性和实用性。     

Sirenomelia,the mermaid syndrome—detection in the first trimester

The sirenomelia sequence with fusion, rotation, hypotrophy or atrophy of the lower limbs in combination with severe urogenital and gastrointestinal malformations is a rare and usually lethal disorder. We present the case of a 28-year-old woman, who was referred to our department because of an intraabdominal cystic structure in the 9th week of gestation. Subsequent scans confirmed the diagnosis of a sirenomelia sequence with the fusion of the lower extremities without fusion of the bones according to Stocker I classification. The size of the intraabdominal cyst decreased during follow-up. After counseling, termination of pregnancy was induced. The postmortem X-ray confirmed the ultrasound diagnosis. The exact etiological mechanism of this malformation is still unknown. An early alteration of the embryological vascular network damaging the caudal mesoderm is thought to lead to arrested development of the lower limbs and other affected organs. The cyst we saw in the 9th week might fit with this theory, either as an expression of the complex malformation of the lower abdomen or as the sonographic appearance of necrosis. Copyright © 2003 John Wiley & Sons, Ltd.     

云南盐津5.1级地震的地震活动前兆异常特征分析研究

对盐津5.1级地震的地震活动性、前兆异常特征进行了分析研究,主要为地震预测预报积累经验,提供地震预报依据.分析研究盐津地震活动在时间、空间和强度等方面的规律,从理论上认识地震前的地震前兆变化、形态表现等明显的异常特征.     

浅水型湖泊蓝藻水华预警监测工作的思考

浅水型湖泊的富营养化进程不断加快,呈现出蓝藻水华暴发现象是逐年增加的。太湖作为长江中下游地区典型的浅水型湖泊更因近年来蓝藻水华频发的态势引起了政府和社会的广泛关注。为确保太湖地区饮水安全,提高政府应对蓝藻水华的能力,对太湖蓝藻水华进行预警监测是判断其发展趋势以及制定相应对策的重要手段。着力分析和总结了太湖蓝藻水华预警监测工作的主要内容,从预警监测工作的统筹、预警监测体系的建立、技术分析、预警监测的启动、分级与评价、预警信息的发布、预警监测的终止到预警监测的保障机制等,以利于同行们更好地应对浅水型湖泊蓝藻水华的发生。     

Preterm delivery rate and fetal outcome in structurally affected twin pregnancies: A retrospective matched control study

Data from 23 twin pregnancies with one structurally affected fetus were compared with data from 23 twin pregnancies with proven absence of structural fetal anomalies and matched for maternal age, parity, and year of delivery. The preterm delivery rate ( < 37 weeks) was high in both groups but not significantly different (57 vs. 48 per cent). Perinatal mortality was significantly higher in the structurally affected twin pregnancies (65 vs. 9 per cent). In the affected twins, birth weight of the anomalous fetus was significantly lower than that of the normal co-twin. Since there was no difference in the incidence of maternal disease (hypertensive disorders, diabetes), it was concluded that the higher perinatal mortality was determined mainly by the nature of the anomaly and not by the preterm delivery rate.