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Monitoring Local Migration of Yangtze Finless Porpoises by Acoustic Gate
Monitoring Local Migration Yangtze Finless Porpoises Acoustic Gate
2009/8/19
Passive acoustical monitoring systems were used to monitor local migrations of Yangtze finless porpoises in China. We stationed 3 acoustic data loggers (W20-ASII) at 3 different places in the confluen...
Observation of Correlation between Water Quality and Pulse Counts by Snapping Shrimps for Shallow Sea Environmental Monitoring
Water Quality Pulse Counts Snapping Shrimps Shallow Sea Environmental Monitoring
2009/8/19
Snapping shrimps, which make peculiar pulse sounds, are found everywhere in the world. This research examined the validity of pulse counts of snapping shrimps as an indication of sea environmental con...
Study on Monitoring System of Coastal Environment (3rd Report)—Monitoring of Phytoplankton Concentration by Assimilation—
Environment Monitoring Short-Term Prediction P-N Model Kalman’s Filter
2009/5/19
In order to manage and assess coastal environment, developing of a monitoring system is becoming important and urgent theme recently. The authors emphasize that the monitoring system should include no...
Study on Monitoring System of Coastal Environment (2nd Report)— Assimilation of Measurement Data and Mathematical Model —
Environment Monitoring Short-Term Prediction P-N Model State Space Model
2009/5/12
In order to develop a practical method for monitoring of coastal environment, the authors propose a new assimilation method of measured data with mathematical model. The present method enables to pred...
A Study of On-Board Monitoring and Analysis System of Ship Propulsion Performance-An Estimation Method of Propeller Performance with Surface Roughness Effects
Propeller Performance Surface Roughness Ship Propulsion Performance Monitoring
2009/5/12
The propulsion performance of actual ship at sea tends to deteriorate mainly due to the fouling of hull and propeller. It is important, therefore, to monitor the present situation of ship propulsion p...