On the basis of the analyses of phytoplankton physiology and bio-optics,this paper proposes that the CFE(chloro- phyll fluorescence efficiency)algorithm is not a precision appreach to estimation of fluorescence quantum yield(FQY)by using moderate resolution imaging spectrometer(MODIS)data,and then presents the  algorithm,a new MODIS algo- rithm for more accurate estimation of FQY.

This paper designs a system through single-photon counting for calibrating the fluorescence efficiency of the certain material.

The roots of above-mentioned 50 species were treated with soil salt extractions,physiological indicators(fluorescence efficiency and water potential) were determined and 20 species with stronger salt-tolerance were selected,and the selected trees were planted along coastal roads in Yingkou Coastal Industrial Base,and the survive rates were investigated after 1~2 years.

Using a ratio fluorescent approach to study the role of the kinetic changes of calcium in vascular hyporeactivity of severe hemorrhagic shock.

Objective: To establish a ratio fluorescent approach to detect the kinetic changes of calcium in vascular smooth muscle cells and study its role in vascular hyporeactivity in severe hemorrhagic shock.