一种高效的串行通信协议及实现

提出了一种高效率的数据变换方案,比ＡＳＣＩＩ码变换效率提高４３％,阐述了发送接收数据的过程,给出了软件设计方法,并以此通信协议,实现了ＬＤＳＳ９８调度机维护终端的通信,该软件经过现场长期运行表明,性能稳定。该协议对通信软件的编程有一定的参考价值,有很好的实用性和较广泛的推广价值。     

数字铁岭地理空间框架“一库两平台”建设的设计与实现

数字铁岭地理空间框架"一库两平台"建设项目建立了基础地理信息数据库,建成了政务版和公众版地理信息公共平台,并开发了一系列应用示范系统,目前已为多家政府部门提供地理信息数据服务。本文是对数字铁岭地理空间框架"一库两平台"建设的设计与实现进行总结。     

日照港30万吨原油码头港池与航道回淤预测分析

根据日照港30万吨级原油码头工程的设计要求,在拟建工程海域实测了2个站的大、中、小潮潮位和9条测线的流速、流向及含沙量。利用二维潮汐水流数学模型进行了潮位、流速和流向验证计算,综合研究了调查海区的泥沙运动和海底冲淤演变规律,并预测了冲淤趋势。在此基础上,重点对30万吨原油码头泊位、港池与航道的淤积进行了预测分析。分析结果表明,在正常水动力条件下,该港区内的平均年回淤速率不大,此港区适合建码头。     

远程教育系统中卫星小站的防雷电设计

分析了雷电引入卫星小站系统的途径,阐述了卫星小站系统的防雷电措施,提出了构筑完整防雷体系保护系统设备的方法。     

水煤气大数据在芜湖社会化管理中的应用

人房基础数据的准确性是社会网格化管理工作的一项重要依据.在传统网格化的管理模式下,网格员需要挨家挨户走访才能掌握管辖区域内的人口变化,针对性不强,信息滞后,工作量巨大.为了解决这一问题,芜湖市社会服务管理网格化平台创造性地引入水煤气大数据分析来研判预测人口变化,为网格员核查人房数据提供重要的"情报"支持.水煤气大数据分析以户为单位对户内用水、用气能耗数据进行自动化分析,同时引入季节性差异补偿参数,建立户内人口居住变化推测模型,提取出需核查的住户数据.以核查任务的形式发送到移动终端App——"社管通",网格员通过社管通核查任务有针对性地进行上门核查.本文提出的水煤气大数据分析解决方案体现了大数据的价值,改变了传统定期全面核查模式,建立了精准靶向核查的工作模式,对保障社管网格内"底数清,情况明"具有重要意义.     

基于土地利用的县域主体功能区划分研究——以湖南省北湖区为例

在城镇化进程加快、区域土地结构急剧变动的背景下,以土地利用为研究对象,从资源环境承载力、现有开发强度和发展潜力三方面,选取13个指标构建主体功能区划分指标体系,运用熵值法、多目标线性加权函数法等数理方法对县域主体功能区进行分区研究。以湖南省北湖区为例,进行了实证研究,划分为优化开发区、重点开发区、适度开发区、限制开发区、禁止开发区五类主体功能区,并结合当地实际,提出了各功能分区土地利用的主导方向与建设策略。     

The Yudomian of Siberia,Vendian and Ediacaran systems of the International stratigraphic scale

In Russia, the terminal Neoproterozoic formally includes the Vendian of western part of the East European platform and the concurrent Yudoma Group of Siberia. As is shown in this work, the designated subdivisions correspond in the stratotypes only to the upper, Yudomian Series of the Vendian. In the Siberian platform, the Ust-Yudoma and Aim horizons of the Yudomian are tightly interrelated. The lower of them, bearing remains of Ediacaran Fauna, represents the Ediacarian Stage, whereas the upper one containing small-shelled fossils (SSF) corresponds to the Nemakit-Daldynian Stage divided into the trisulcatus and antiqua superregional zones. In more complete sections of the platform periphery, sediments of these subdivisions conformably rest on siliciclastic succession that should be ranked as basal subdivision of the Yudomian. The succession is concurrent to the Laplandian Stage of the East European platform. According to geochronological dates obtained recently, the Yudomian Series spans interval of 600–540 Ma. In the East European platform, the Upper Vendian (Yudomian) begins with the Laplandian basal tillites of synonymous stage. In the west of the platform, tillites are dated at 600 Ma like the Upper Vendian base in Siberia. The next Ediacarian Stage of the East European platform is stratigraphic equivalent of the Redkino Horizon, while summary range of the Kotlin and Rovno horizons is concurrent to that of the Nemakit-Daldynian Stage. The Vendian of Russia is conformably overlain by the Tommotian Stage of the Lower Cambrian. Intense pre-Vendian events constrained distribution areas of the Lower Vendian sediments in Russia. The Lower Vendian deposits of the East European platform are most representative and well studied in the central Urals, where they are attributed to the Serebryanka Group. In Siberia, separate subdivisions representing the Lower Vendian are the Maastakh Formation of the Olenek Uplift, two lower members of the Ushakovka Formation in the Baikal region, and the Taseeva Group of the Yenisei Range. Chronological interval of the Lower Vendian corresponds to 650–600 Ma. The Marinoan Glaciation dated in Australia at 650–635 Ma is concurrent to basal part of the pre-Yudomian interval of the Vendian in Russia, whereas the Laplandian Tillite and Gaskiers Glaciation (600–580 Ma) correspond to onset of the Yudomian Epoch. The new Ediacaran System (Knoll et al., 2004) legalized in the International Neoproterozoic scale is close in range to the entire Vendian (635–544 Ma), although without basal beds (Marinoan Tillite) it deprives the terminal Neoproterozoic of its original sense. Inferiority of the system consists also in its indivisibility into stages. Hence, it is clear that the Vendian System subdivided in detail in Russia should be retained in the rank of terminal system of the Precambrian, one of the basic in general scale of the Neoproterozoic.     

乌鲁木齐东道海子剖面的孢粉分析及其反映的环境变化

根据乌鲁木齐河尾闾湖泊东道海子剖面的高精度孢粉分析,结合磁化率、烧失量和粒度分析资料,以剖面中含泥炭灰黑色粘土质粉砂层做的8个¹⁴C测年数据为基础,讨论了天山北麓古尔班通古特沙漠南部边缘的环境演变。研究认为:4500aB.P.以来该区域的植被是以荒漠为主的,但是1170B.C.以来,气候出现6次较大波动,1170～460B.C.,250～640A.D.和680～1645A.D.时段,气候相对冷湿,出现过荒漠草原,在这3个时段植物种类较多,覆盖度高,也是东道海子的高湖面时期,与气候的冷期对应;相反,在460B.C.～250A.D.,640～680A.D.和1645A.D.以来时段,属荒漠阶段,湖泊的水位相对下降,属中湖面期,与气候的暖期对应