In this study, iridium (Ir) was selected as a signal element, the chemical adsorption tagging method was adopted to make the tracer sediments, the neutron activation analysis method was used to determine the signal el...In this study, iridium (Ir) was selected as a signal element, the chemical adsorption tagging method was adopted to make the tracer sediments, the neutron activation analysis method was used to determine the signal element content in sediments, and the sediment transport law was judged according to the movement characteristics of the signal elements. This method overcomes the shortcomings of the fluorescent sediment technique and radioactive tracer sediment technique. It is capable of simulating truly the movement characteristics of natural sediments. Therefore, it is an advanced technique for observation of the sediment movement. The expectant effects were obtained in the experiment on the first domestic practical application of this method carried out in Tianjin Port.展开更多
基金the National Natural Science Foundation of China
文摘In this study, iridium (Ir) was selected as a signal element, the chemical adsorption tagging method was adopted to make the tracer sediments, the neutron activation analysis method was used to determine the signal element content in sediments, and the sediment transport law was judged according to the movement characteristics of the signal elements. This method overcomes the shortcomings of the fluorescent sediment technique and radioactive tracer sediment technique. It is capable of simulating truly the movement characteristics of natural sediments. Therefore, it is an advanced technique for observation of the sediment movement. The expectant effects were obtained in the experiment on the first domestic practical application of this method carried out in Tianjin Port.
