波浪荷载下海洋土孔隙水压力内时模型的研究

作者导出了基于 Gibbs 自由能和应力内时标度基础上的海洋土内时剪胀方程,由此建立了预测均匀和不均匀波浪循环荷载下不排水时孔隙水压力的模型。该模型不仅很好地拟合了实验数据,还能较好地说明了循环荷载作用下孔隙水压力上升的机理,可以很方便地用于波浪循环荷载作用下的液化势分析中。     

Characteristics of the temporal-spatial variation in atmospheric ozonosphere over the northern hemisphere during the period of 1963-1985

The total ozone data of 113 ozone observational stations in the Northern Hemisphere (NH) spanning a period of 1963-1985 have been analysed in this paper. Some interesting results have been obtained, such as the temporal and spatial distribution, long-term trends, the harmonic analysis results, the relationship between the total ozone and solar activity, etc. Furthermore, by using the denned index G, the long-term changes of ozone meridional distribution patterns for the region of Europe-Asia (EA) have been approached particularly.     

中国对外开放口岸布局研究

本文共分五个部分。１、口岸分类及功能：按口岸的重要性及管理层次分类；按口岸性质及运输方式分类；按口岸所处地带及对外职能分类。２、口岸的基本结构：包括对外运输系统、对外贸易系统、监督检查系统、服务系统和综合管理系统。３、口岸布局与区域开发。４、中国口岸布局四大地域系统：沿海沿江沿边口岸开放地域系统和内陆（沿路）口岸开放地域系统。５、关于改善开放口岸体系的建议：口岸设置要为外向型经济服务，结合国际大通道建设开辟新口岸，大力发展航空网设置新航空港口岸，沿江内陆区口岸类型要多样化，完善现有开放口岸系统。     

安家营子金矿含金和无金石英的标型特征

系统研究了安家营子金矿区含金石英和无金石英的微量元素、流体包裹体、颜色、比重、发光、晶胞参数和红外光谱等标型特征，并依据所得数据对这两类石英进行了判别分析，提出了一系列的找矿标志。     

地球系统科学与数字地球

数字地球将为地球系统科学研究带来研究方法,研究手段和信息获取渠道的革命,因对地观测和数据资源共享技术的发展将使传统的野外地学作业逐步走向现代化,从而使地球系统科学的建立真正成为可能。     

GPS观测数据中的仪器偏差对确定电离层延迟的影响及处理方法

差分码偏差（DCB）是电离层总电子含量（TEC）监测和建模的主要系统误差,卫星DCB也是卫星导航系统导航电文的重要参数。研究了卫星DCB的估计算法,推导了不同基准下DCB的转换公式,利用北斗观测实验网解算了2013年北斗卫星的DCB。在同一基准下分析了北斗卫星DCB的稳定性,并与MGEX发布的DCB产品进行了比较分析。实验结果表明,该方法解算的北斗卫星B1-B2 DCB在-9~17 ns之间,北斗卫星DCB的稳定性优于0.4 ns;北斗倾斜地球同步轨道卫星（IGSO）卫星稳定性优于地球静止轨道卫星（GEO）和中圆地球轨道卫星（MEO）;利用北斗观测实验网解算的北斗卫星DCB与MGEX解算结果存在最大约1.7 ns的系统偏差,可能由于测距码的不一致性所致;接收机硬件材质的不同是导致接收机DCB差异的主要影响因素。     

PNN网络在预测MCS移动中的应用

神经网络是空间数据挖掘的一种重要手段。本文运用概率神经网络(PNN网络)对1998年夏季影响青藏高原上中尺度对流系统(MCS)东移的环境物理量场的空间分布特征进行了研究，得到了高原上MCS移动方向与环境物理量场空间分布之间的关系。研究表明，使用概率神经网络预测中尺度对流系统的移动具有较好的效果，从而为研究高原上MCS东移与环境场之间的关系提供了一种新的方法和思路。     

晚更新世以来东昆仑山区黄土沉积及其气候意义

分布于东昆仑山北坡、发育于距今约24kaB.P.以来的高海拔黄土提供了东昆仑山区晚更新世以来气候变化的完整记录。根据黄土岩性、粒度、重矿物及其地磁分析,结合本区内的古冻土研究结果,东昆仑山约24kaB.P.以来经历了晚更新世末寒冷期(24～10.7kaB.P.);早全新世转暖期(10.7～8.8kaB.P.);中全新世暖湿期(8.8～6.0kaB.P.);中全新世暖干期(6.0～4.5kaB.P.);全新世后期(4.5kaB.P.)以来等气候演化阶段。     

Multi‐Scale Qualitative Location: A Topology‐Based Model

Qualitative locations describe spatial objects by relating the spatial objects to a frame of reference (e.g. a regional partition in this study) with qualitative relations. Existing models only formalize spatial objects, frames of reference, and their relations at one scale, thus limiting their applicability in representing location changes of spatial objects across scales. A topology‐based, multi‐scale qualitative location model is proposed to represent the associations of multiple representations of the same objects with respect to the frames of reference at different levels. Multi‐scale regional partitions are first presented to be the frames of reference at multiple levels of scale. Multi‐scale locations are then formalized to relate multiple representations of the same objects to the multiple frames of reference by topological relations. Since spatial objects, frames of reference, and topological relations in qualitative locations are scale dependent, scale transformation approaches are presented to derive possible coarse locations from detailed locations by incorporating polygon merging, polygon‐to‐line and polygon‐to‐point operators.     

Remote Sensing Image On‐Demand Computing Schema for the China ZY‐3 Satellite Private Cloud‐Computing Platform

Time is a crucial factor for many remote sensing applications such as emergency response. The traditional approach requires users to spend a lot of time downloading, processing, and viewing satellite images with specialized software. Realizing interactive real‐time processing and visualization of satellite images online is our focus. This article presents an On‐Demand computing schema for remote sensing images. A processing chain model is proposed for satellite images on a private cloud computing platform designed for the China Centre for Resources Satellite Data and Application (CCRSDA). The architecture, processing flow, optimization method, fault tolerance, and user interface are described in detail. To test the efficiency and scalability of the platform, 11 processing chains were created and three load balance experiments were executed. The results from these experiments show the validity of the proposed methods and architecture.