区域经济整合发展研究--以上海市南汇区为例   总被引：3，自引：0，他引：3  

陈存友  刘厚良 《地域研究与开发》2003,22(6):18-21

文章从区域经济一体化和经济全球化的角度出发，分析了区域经济整合发展的动力来源、基本过程及遵循的原则，并以实例阐述了区域经济整合的主要内容为：城镇体系、产业结构、市政和基础设施及区域经济运行环境等，归纳出了5种典型的整合类型，即领土主权变动、国家重大政策推动、行政归属调整、重大工程启动及城市扩展整合等，最后通过上海市南汇区的实例进行了相应的论证。  相似文献   

大兴安岭浅覆盖区生态地质评价方法初探——以1∶25万区调呼中镇幅为例   总被引：1，自引：0，他引：1       下载免费PDF全文

马江水李仰春  任凤和尤福珍 李清伟 《中国地质》2003,30(3):330-336

通过野外调查，在收集统计大量基础地质、经济地质、环境地质、旅游地质、农(林)业地质等数据信息的基础上，在GIS技术指导下，采用定量定性相结合的半定量分析评价方法，对森林浅覆盖区生态地质现状及各类资源的开发利用潜力进行了综合评价。在研究和探讨森林浅覆盖区生态地质综合评价方法的基础上，提出了森林浅覆盖区生态地质评价模型，确定了综合参数，划分了生态地质类型。  相似文献   

WZY-1型钻参仪的研究与应用   总被引：1，自引：0，他引：1  

补家武  补生蓉  李吉春 《探矿工程》2003,30(2):35-37

分析了目前钻参仪未能普遍推广应用的原因。介绍了WZY－1型钻参仪的总体构成、测试参数、性能特点及其分别与钻机和水泵的一体化设计。  相似文献   

巴彦浩特盆地火成岩的综合地球物理解释     

张世晖  刘天佑  顾汉明  邓荣来 《物探与化探》2003,27(5):383-386

采用综合地球物理方法识别巴彦浩特盆地火成岩,首先利用高精度重磁资料和大地电磁测深资料,初步确定火成岩的平面位置和深度,然后利用钻遇火成岩的已知测井资料,建立人工合成地震记录,在地震剖面上标定出火成岩并分析其波组特征,采用BP神经网络进行火成岩的精细识别.研究表明,综合地球物理解释是提高反演解释精度的有效途径.  相似文献   

Modeling of Rayleigh waves dispersion in the Sannio region (Southern Italy) from seismic active refraction data     

Salvatore de Lorenzo  Giovanni Iannaccone  Aldo Zollo 《Journal of Seismology》2003,7(1):49-64

Short period surface waves, recorded during a seismic refractionsurvey in the Sannio region (Southern Italy), have been modeled to infera shallow velocity model for the area. Based on the decrease of resolutionwith depth, due to the bias on group velocity estimates arising frominterference of the Rayleigh waves with higher modes, we carried out aprocedure of fitting, with synthetic seismograms, of selected filtered traceswith a gaussian filter, having a width at half height equal to 1 Hz and acentral frequency lying in the range [1,4] Hz. We estimated the likelihoodbetween synthetic and observed seismograms by measuring their semblance.In this way we were able to infer a more refined local velocity modelcharacterized by a high Vp and Vs vertical gradient in the sedimentarycover. Two ad hoc resolution studies, based on group velocity andamplitude data respectively, indicate that the local velocity model is a goodvelocity model also for the entire studied area. The increase in the numberof available data when using amplitude information allows us to make amore selective choice in the model parameter space (Vp and Vs of eachlayer) and to solve for the Vp/Vs ratio. The inferred Vp velocity in thehalf-space is equal to 2.8 km/s. This value is in excellent agreement withthat inferred by other authors (3 km/s) by modeling P-wave travel timevs. distance. The best-fit model furnish low Vp/Vs for the sedimentarycover so indicating a high degree of the sediment's compaction in thestudied area. The inferred shallow high-velocity gradient indicates thatthe shallow sedimentary layer in the area could trap and focus the energytraveling into it.  相似文献   

Seismic Wave Field in the Vicinity of Caustics and Higher-Order Travel Time Derivatives     

Goldin  S.V.  Duchkov  A.A. 《Studia Geophysica et Geodaetica》2003,47(3):521-544

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Estimating the orientation error of the Dahan Downhole Accelerometer using the maximum cross-correlation coefficient between the observed and synthetic waves     

H.-C. Chiu  H.-C. Huang 《Journal of Seismology》2003,7(4):493-505

A new algorithm to correct the orientation error of the accelerometerat the Dahan Downhole Array, Hualien, Taiwan is developed. This algorithmconsists of three stages: (1) rotating two horizontal ground motions on thefree surface to the SH-SVdirection and SH axis offers a reference direction.(2) computing the synthetic downhole SH waves at a downhole station and (3)searching a rotation angle for downhole observation that yields a best waveformmatch between the synthetic and observed downhole seismograms. At this point, the rotated angle corresponding to the best waveform match can be considered as the orientation error. We selected five earthquakes with good data qualityfor analysis. Results show that this algorithm gives a more stable estimationthan a conventional method because it allows the selection of data from a wider time window for analyses. The estimated orientation error of the accelerometers at the Dahan Downhole Array after the 1999 reinstallation are40°, 114° and 285° at depths of 50, 100 and 200 m, respectively.  相似文献   

数字地籍测绘实施中的技术问题     

段莉  杨晓明 《测绘与空间地理信息》2003,26(2):29-30

数字地籍测绘是目前土地管理部门的首选方案,需要制定街坊划分、界址线设定、工作底图与采集草图一体化作业、数据文件管理、街坊线、图斑的绘制等技术措施。  相似文献   

3G技术与现代物流管理技术的集成模式研究   总被引：3，自引：1，他引：3  

霍亮  李欣 《测绘科学》2003,28(3):59-61

3G技术能够对现代物流作业与管理进行有效地监督和控制,3G技术与现代物流管理技术的集成是物流业发展的客观需要。探讨了3G技术与现代物流管理技术的集成模式,对于以GIS技术为平台支撑、以定位技术和无线通信技术为辅助手段的分布式空间物流信息系统的建设具有一定的意义。  相似文献   

Theory and Method of Mineral Resource Prediction Based on Synthetic Information     

WangShicheng YeShuisheng ZhouDongdai 《中国地质大学学报(英文版)》2003,14(3):207-214

Metallogenic prognosis of synthetic information uses the geological body and the miaeral resource body as a statistical unit to interpret synthetically the information of geology, geophysics, geo-chemistry and remote sensing from the evolution of geology and puts all the information into one entire system by drawing up digitalized interpretation maps of the synthetic information. On such basis, differ-ent grades and types of mineral resource prospecting models and predictive models of synthetic informa-tion can be established. Hence, a new integrated prediction system will be formed of metallogenic prog-nosis (qualitative prediction), mineral resources statistic prediction (determining targets) and mlaeral resources prediction (determining resources amount).  相似文献