Temporal-Spatial Variation of Surface Suspended Matter and Controlling Factors in the Inner Shelf of the East China Sea in Winter

Based on the observed surface suspended matter in the East China Sea in February 2007 and June 2015, an empirical model was established using L1 b's band 4 data to retrieve surface suspended matter from the Moderate Resolution Imagine Spectroradiometer Terra imagery. The squared correlation coefficient is 0.8358, and the root mean square error is 0.4285 mg L-1. The model reflects the distribution characteristics of surface suspended matter in the inner shelf of the East China Sea. In this paper, the satellite images of the study area were retrieved in January from 2001 to 2015, and the monthly distribution of surface suspended matter were obtained. The inter-annual distribution of the study area is similar, and the concentration of surface suspended matter is higher near the shore than offshore. A large amount of surface suspended matter is transported southeast under the influence of Zhejiang and Fujian coastal current and Taiwan warm current. Only a small amount of surface suspension can reach the Kuroshio area. The surface suspended matter concentration changes obviously near the estuary because of the effect of differences in the flux of the Yangtze River. Meanwhile, winter monsoon, temperature front, El Ni?o events, and other factors affect the distribution of surface suspended matter in 100 m isobath to coastal water but minimally influence the distribution in 100 m isobath to deep sea.     

风景名胜区三维景观导游系统研制方案的思考

简要介绍了Skyline软件的性能及该软件下的TerraBuilder组件。阐述了使用TerraBuilder组件与3DsMAX相结合制作景区三维景观浏览效果图的方法,介绍了三维景观图的制作过程,强调需要使用photoshop软件来进行后期处理,以得到完美的效果图。     

基于GIS的遥感影像管理技术研究

结合黑龙江省国土资源遥感信息管理系统的建设,阐述海量影像无缝数据库管理系统实现的关键技术,包括海量遥感影像的快速显示和查询,以及影像管理中一些辅助功能的开发实现,从而实现了一个多时态、多尺度、多分辨率、多数据源、多种类的遥感影像数据库系统,并且满足遥感影像、矢量和属性数据的高效存储要求。     

碎屑岩成像测井沉积学研究及其在海上油田的应用

基于成像测井技术在我国海域含油气盆地的应用积累,提出了碎屑岩成像测井沉积学的概念。碎屑岩成像测井沉积学的主要研究内容包括地层岩性识别、沉积构造解释、沉积序列与微相分析、砂体物源与古流向分析、砂体分布预测等五个方面。利用南海西部的实际资料,运用成像测井技术,对五方面的应用逐一分析或提出了应用前提、使用步骤、注意要点、已有规律特征以及典型实例。     

应用机器视觉技术研究刀具磨损与耐用度

本研究采用光电摄像器件(TV摄像机或CCD)显微镜与IBM-PC计算构成的机器视觉系统,使用图像处理与模式识别技术分析和处理切削刀具后刀面上磨损带的显微影像信息;分别采用联机和脱机的方法检测、计算刀具的磨损量和损坏形态,并以此作为监测制造过程的依据,以刀具耐用度应最高、生产成本应最低为约束条件,优化了切削参数(切削速度V,进给量f)。经实验验证,理论分析计算与实测结果相吻合,为高精度识别和控制制造过程提供了一种实用方法。