基于智能定位手机的影像信息内外业一体化核查系统

在地理国情普查和未来将持续开展的地理国情监测工作中,其主要作业方式是通过多源遥感获取地类信息。由于自动解译和人工解译准确率较低,外业调查和核实都是必不可少的工作。传统的制图调绘核实方法存在人工定位困难、记录慢和单人识别不可靠等问题。采用最新的平板电脑进行外业调绘存在强光下无法显示、笔触操作不便和电池续航时间短等缺点。本系统以GPS智能手机作为终端,通过网络传输将遥感外业调查像片传回内业数据处理中心,作业员可以根据外业作业人员传回的定位像片进行地类赋值或修改以及检查等工作,实现无缝集成的内外业一体化。     

利用先验对流层延迟约束加快PPP重新收敛方法

针对卫星信号中断后PPP需要重新收敛的问题,根据对流层延迟参数在短期内变化不大的特点,利用PPP中断前估计的比较精确的对流层延迟参数作为先验信息,提出了一种附加先验对流层信息约束的PPP模型加快PPP的重新收敛。实验结果表明,附加先验对流层信息约束模型的PPP重新收敛过程明显快于传统模型。附加先验对流层延迟信息的标准差越小,约束条件越强,PPP的重新收敛就越快。     

Industry-academe linkages in the Philippines: Embedding foreign investors,capturing institutions?

The global sourcing of services from developing countries has made human capital a key local asset for attracting foreign direct investment. This paper analyses to what extent individual companies engage in linkages and collaborations with universities and how the education sector responds to the new demands of the knowledge economy. Offshore services are generally recognised as ‘footloose’ investments with limited local linkages. A case study of industry-academe linkages in the growing business process outsourcing sector in the Philippines finds that foreign investors engage in active embedding and develop linkages with human resource providers, leading to increased territorial embeddedness. This paper investigates the kind of linkages created, which actors engage in them and their motivations, to understand the resulting implications for local economic development. Interviews with foreign investors and higher education institutions reveal that most collaboration is initiated by large call centre companies and focuses on entry-level skills development for their operations. I argue that multinational corporations have been able to capture local institutions and introduce changes in the education system to supply mainly lower-end skills. While increasing the available talent pool and raising the competitiveness for further investments, this presents challenges for upgrading into higher value-added services and potentially transforms the country into a dependent market economy.     

Structural style in a young flexure-induced oblique extensional system,north-western Bonaparte Basin,Australia

In the north-western Bonaparte Basin (North West Shelf of Australia) Neogene to Recent flexure-induced extension superimposed obliquely over the Mesozoic rift structures. Thus, the area offers a good opportunity to investigate the dynamics and architecture of oblique extension fault systems. Analysis of basin-scale 2D and 3D seismic data along the Vulcan sub-basin shows that Neogene deformation produced a new set of extensional, en échelon faults, at places accompanied by the reactivation of the Mesozoic faults. The pre-existing Mesozoic structures strongly control the distribution of the Neogene-Recent deformation, both at regional and local scales. Main controls on the Neogene-Recent fault style, density and segmentation/linkage include: (1) the orientation of the underlying Mesozoic structures, (2) the obliqueness of the younger extension relative to the rift-inherited faults, and (3) the proximity to the Timor Trough. Three types of vertical relationships have been observed between Mesozoic and Neogene-Recent faults. Hard linkages seems to develop when both fault systems trend parallel, therefore increasing risks for trap integrity. It is suggested that the orientation of maximum horizontal stress (S_Hmax) relative to the Mesozoic faults, forming hydrocarbon traps, is critical for their potential seal/leak behaviour. Stratigraphic growth across the faults indicates that main fault activity occurred during the Plio-Pleistocene, which corresponds to the timing of tectonic loading on Timor Island and the development of lithospheric flexure. Synchronism of normal faulting with flexural bending suggests that extensional deformation on the descending Australian margin accompanied the formation of the Timor Trough.     

Nonstationary time series prediction by incorporating external forces

Almost all climate time series have some degree of nonstationarity due to external forces of the observed system. Therefore, these external forces should be taken into account when reconstructing the climate dy- namics. This paper presents a novel technique in predicting nonstationary time series. The main difference of this new technique from some previous methods is that it incorporates the driving forces in the pre- diction model. To appraise its effectiveness, three prediction experiments were carried out using the data generated from some known classical dynamical models and a climate model with multiple external forces. Experimental results indicate that this technique is able to improve the prediction skill effectively.     

EXTERNAL CONTROL OF NONMETROPOLITAN INDUSTRY IN KENTUCKY

The organizational separation of management and other quaternary activities from production operations in American manufacturing has resulted in a divergent pattern of production and headquarter locations. We examine the external control relationships that arise from this separation between headquarter location and branch plant operations in nonmetropolitan Kentucky. Although corporate headquarters have diffused to the Sunbelt, no shift was found in the corporate control of branch plants in Kentucky. Nonmetropolitan manufacturing in Kentucky was oriented toward the metropolitan centers of the traditional manufacturing belt rather than the newer corporate centers of the South. Also control relationships are more likely to be local among smaller factories. Large plants having more autonomy in production or producing finished goods were more likely to be owned by a distant firm located in a large SMSA.     

浅谈1∶10000调绘内外业一体化作业

简要介绍了制作数字正射影像图、数字线划图的作业方法;并对1∶10 000调绘内外业一体化作业流程进行了有针对性地阐述;着重就外业调绘部分在内外业一体化作业方法中的重要性及主要技术要求做了较全面描述。     

外部利润、产权界定与土地资源优化配置——成都市农村土地股份合作制改革的制度经济学解析

以"外部利润——产权界定——资源优化配置"为研究主线,对成都市农村土地股份合作制改革进行了制度经济学解析。研究发现,制度创新空间的形成、土地的增值收益、土地规模利用效应和土地集约利用效应构成了成都市农村土地股份合作制改革的外部利润。成都市农村土地股份合作制改革,一方面可以提高土地规模和集约利用效应,促进土地资源优化配置;另一方面可以明晰集体土地产权主体,健全基层组织治理机制。要采取诸如放松法律限制、加强理论研究、规范机制建设等措施,从而推动土地股份合作制的生成和发展。