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911.
Distant water fisheries development and vessel monitoring system implementation in Taiwan—History and driving forces 总被引:1,自引:0,他引:1
This paper provides an analytical review of the development of distant water fisheries and the implementation of vessel monitoring systems (VMS) in Taiwan. Taiwanese distant water fisheries have gone through several stages in development: rebirth from the damage of World War II up until the early 1970s, stagnation during the mid-1970s to early 1980s, unbridled growth in the late 1980s to a peak in the 1990s–early 2000s, and a stage of disruption and transformation since the mid-2000s. There were two major fisheries in this stage: tuna and squid, both of which rank between the world's first and third largest. Development was mainly driven by national promotion programs and vessel-building restricting policies; and international influences such as oil crises, declaration of exclusive economic zones, and legal arrangements that stimulated strengthening of international management measures. Growth in Taiwan's over-developed fisheries has outpaced the incommensurately scaled Taiwanese fisheries management sector that has not expanded in parallel with the fisheries. Monitoring of vessel activities remains a major management issue. VMS, which can provide both national and international bodies with an essential monitoring capability for ensuring resource management, was found to be one of the important solutions to this issue. The system, however, was initially unacceptable to the fishers, and the government has transformed external pressures arising from international arrangements and management measures into a force for promoting installation of VMS on Taiwanese fishing vessels. This has occurred in stages: a trial period during 1989–1992; initial development during 1994–1996; expansion during 1996–2004; and a more mature stage of enhanced implementation from 2005 to the present. 相似文献
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913.
914.
Digital mobile mapping, the method that integrates digital imaging with direct geo-referencing, has developed rapidly over
the past 15 years. The Kalman filter (KF) is considered an optimal estimation tool for real-time INS/GPS integrated kinematic
positioning and orientation determination. However, the accuracy requirements of general mobile mapping applications cannot
be easily achieved even when using the KF scheme. Therefore, this study proposes an intelligent scheme combining ANN and RTS
backward smoother to overcome the limitations of KF and to enhance the overall accuracy of attitude determination for tactical
grade and MEMS INS/GPS integrated systems.
相似文献
Yun-Wen Huang (Corresponding author)Email: |
915.
对在农业资源管理中应用GIS技术的必要性进行了论述,在了解了宁波市农业资源环境的特点以及用户需求的基础上,利用GIS的二次开发技术,对宁波市农业资源管理信息系统进行了构建与开发. 相似文献
916.
917.
对气氡脱气装置改造的几点认识 总被引:2,自引:1,他引:1
拆除了格尔木井原气氡脱气装置,针对该井冷水、大流量的实际情况,自行设计、制造了一套新的脱气装置,在其后的气氡观测中取得了良好效果,通过对改造前后氡值的分析,充分认识到了合理的脱气装置的重要性,形成了几点新的看法. 相似文献
918.
我国在快速工业化进程和崛起的过程中,矿业持续快速发展,对生态环境造成了一定负面影响,随着生态文明建设思想的不断深入,绿色低碳转型已势在必行.绿色矿山建设是矿业绿色发展、生态文明建设的基础.本文通过梳理吉林省绿色矿山和绿色矿业发展示范区建设现状,对比全国绿色矿山建设情况,总结导致我省绿色矿山建设进程缓慢的原因,找出存在的... 相似文献
919.
920.
Caikun GAO Huakun DU Jingtian TANG Kangxiu WU Chang'an XIAO Shiping WANG 《东北亚地学研究》2008,11(3):191-196
Integrated geophysical interpretation is a method of combinating different geophysics prospecting methods based on different physical properties of accumulation. As different geophysical methods own different interpretations and varying detection accuracies, the key issue becomes how to integrate the results of several geophysical methods to corrently carry out a comprehensive explanation. Based on different geophysical results, the authors proposed an integrated geophysical explanation method and successfully applied it in practical engineering problems. 相似文献