安卓手机的草地信息协同采集系统     

胡云锋  董群  陈祖刚  董昱  戴昭鑫  张云芝 《测绘科学》2017,42(6)

针对传统的草地资源调查方法流程繁琐、效率较低、多人协同能力较差等问题,该文提出了基于安卓手机的草地信息协同采集系统架构,设计了位置获取、地图显示、采样规划、信息采集、数据展示、报表生成、数据同步等系统核心功能模块,并应用Java语言开发,完整实现了系统各项功能。在内蒙古自治区及河北省的野外考察验证表明,该系统能够满足草原监察和科研部门对于草地资源调查的基本需求。  相似文献   

龙岗区信息采集终端管理与指挥平台系统设计和研究     

陈明娥 《测绘与空间地理信息》2017,(8)

结合龙岗区网格化管理的实际,通过对龙岗区网格数据管理需求的分析,探索龙岗区信息采集终端指挥与管理平台的架构。该移动业务系统的主要功能是:为龙岗区基层网格信息员和网格志愿者、社会公众等提供信息服务,建设龙岗区工作动态实时监控、高效管理的信息指挥平台,以及完成该系统与市区其他业务系统的数据对接。基于此,本文分别从技术、系统架构和系统功能等方面对龙岗区信息采集终端管理与指挥平台系统进行设计和研究。  相似文献   

Sedimentology and architecture of the Douglas Creek terminal splay,Lake Eyre,central Australia     

JOHN A. FISHER  CARMEN B. E. KRAPF  SIMON C. LANG  GARY J. NICHOLS  TOBIAS H. D. PAYENBERG 《Sedimentology》2008,55(6):1915-1930

Douglas Creek terminal splay, sited on the western shoreline of Lake Eyre North, central Australia, covers a surface area of approximately 4 km² with a down‐system length of 2·5 km from the distributary channels terminus to the splay fringe. Two distributary channels feed two sediment lobes which have amalgamated to form the terminal splay. Three primary facies associations have been identified sub‐dividing the creek terminus into distributary channel, proximal and distal splay sections. Proximal splay sediments are characterized by erosionally based, relatively thick (> 100 mm), stacked sheets of coarse to medium sand which commonly display trough and planar cross‐bedding, whereas the distal splay is characterized by thin (generally < 50 mm) massive beds of very fine sand, silt and clay. The change in splay sedimentology is interpreted as reflecting the transition from bedload‐dominated deposition to suspended load‐dominated deposition from decelerating sheetfloods as they spread out from the channel onto the dry lake bed. A proximal to distal splay transition zone is also noted where deposits of both facies associations interfinger laterally and vertically. In scale, geometry and facies associations, the Douglas Creek terminal splay is very different to the often cited Neales terminal splay complex located 70 km to the north. It is suggested that these architectural differences reflect variations in discharge volume, input sediment distribution and the degree of vegetation cover. Understanding the variation in terminal splay architecture has very significant implications for the modelling of analogous subsurface petroleum systems, which at present relies on few modern‐day analogues.  相似文献   

旅游码头与渔港码头结合之思考     

陈东  陈兆林 《海岸工程》2006,25(4):60-62

为了打造帆船之都,促进青岛旅游业和旅游经济的发展,提出了利用休渔期,选择安全性能好的渔船和经过专门培训的渔民搞海上旅游观光、垂钓并发展渔村餐饮业,以解决渔民增收和生活问题,使旅游码头和渔港码头优势互补,共同发展,为青岛旅游业开辟另一条新路。  相似文献   

黄岛原油码头管道腐蚀的原因分析     

邹中坚  张连生  朱相荣  周玲玲 《海洋科学》1990,14(3):44-47

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关于端基分析法测定壳低聚糖的相对数均分子质量问题的探讨   总被引：3，自引：0，他引：3  

孟显丽  陈国华  侯进  孙明昆 《中国海洋大学学报(自然科学版)》2005,35(1):142-144

为使端基分析法更具合理性。文中以铁氰化钾为显色剂。以盐酸氨基葡萄糖和N-乙酰基-D-葡萄糖胺为还原糖的标准品,建立了端基分析法测定低聚糖相对数均分子质量的标准曲线。实验结果证明：通过不同浓度的标准溶液绘制的标准曲线，测得壳低聚糖的相对数均分子质量差别比较大。以凝胶色谱法测定的相对数均分子质量为对照，经分析得：以盐酸氨基葡萄糖为标准品建立的标准曲线方程和以N-乙酰基-D-葡萄糖胺为标准品建立的标准曲线方程更为合理。  相似文献   

Smart Client与Office System整合应用研究     

方睿  郝玉洁 《成都信息工程学院学报》2006,21(4):479-483

Smart Client既可以运用网络和Web Services存取各种外部系统的资源，又能使用本地计算机的所有资源，充分发挥客户端的运算能力，是一种全新软件模式。Office 2003 System中提供了一个Smart Document的功能。使用以文档为基础的方式扩充智能感知的XML标记功能，和用户交互更容易。微软还提出了一套Information Bridge Framework（IBF），来协助开发人员建立方案来连接Microsoft Office应用程序与Web服务。应用Microsoft的Smart Client，结合Office 2003 System以及．NET技术，构建一种部署成本低、维护容易、构架轻小、健壮的应用系统。  相似文献   

上海天文台MK5A终端系统的安装与测试     

薛祝和  王玲玲  王锦清  涂瑞铭 《天文学进展》2004,22(4):344-349

简要阐述了上海天文台VLBI终端系统的发展历史与性能；介绍了在没有MK4解码器、互联网又不能满足需要的特殊情况下，利用数据质量分析仪(DQA)完成MK5A终端系统安装与测试的过程和方法。目前，MK5A终端系统已经成功地应用于上海天文台所有的VLBI实验。  相似文献   

移动数据同步研究与实现     

张宗平  孙世新 《成都信息工程学院学报》2006,21(1):91-95

在分析移动环境下进行数据同步操作的基本需求的基础上,就目前受到广泛支持的数据对象同步协议——SyncML进行了语义模型的改进和完善,并在此基础上提出了一套SyncML客户端的设计与实现方案.  相似文献   

Stable carbon and oxygen isotopic evidence for late Pleistocene to middle Holocene climatic fluctuations in the interior of southern Africa     

Jeannette M. Smith  Julia A. Lee‐Thorp  Judith C. Sealy 《第四纪科学杂志》2002,17(7):683-695

Stable carbon and oxygen isotope analyses of ungulate grazers from four archaeological sites located in different environs within the Caledon River Valley have provided a relatively well‐dated proxy palaeoenvironmental and palaeoclimatic sequence for the period between 16 000 and 6000 calendar (cal.) yr BP. Within the overall trend towards hot mid‐Holocene temperatures and a summer rainfall pattern, stable carbon isotope results show that there were three periods when growth season temperatures were cool enough for C₃ grasses to be present: 16 000–14 000; 10 200–9600, and 8400–8000 cal. yr BP. Similar trends were recorded in stable oxygen isotope values, reflecting shifts in either temperature or available moisture. Although having a similar pattern to that of the lower altitude site, sites situated in foothills and montane portions of the valley consistently maintained lower temperatures until the mid‐Holocene altithermal. At this time growth season temperatures warmed sufficiently for a 100% C₄ grassland to expand in altitude from the warmer low lying localities. In relation to present understanding of synoptic and global climatic patterning, these findings suggest that the early to middle Holocene transition was not a gradual warming trend, but rather it was marked by a series of climatic fluctuations. Of particular note is the possible global, rather than regional, occurrence of the 8200 cal. yr BP ‘event’. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献