Kinetic Fluorescence Spectral Analysis of Core Antennas CP43 and CP47 of Photosystem Ⅱ with Ultrafast Time-resolved Technology A Four-Level Theory on Energy Transfer of the Light-Harvesting Complex ¢ò in PS ¢ò in Higher Plants (in English) Studies on Femtosecond Fluorescence Properties of Light-harvesting Complex in Photosystem ¢ò Study on the Energy Transfer Process Between the Photosystem Ⅱ Reaction Center and Light-Harvesting System Energy Transfer from Phycobilisomes to Photosystems of Nostoc flagelliforme Born. Et Flah. During the Rewetting Course and Its Physiological Significance Dynamic Studies on Primary Reactions of the PSⅡ Particles and Core Complexes by Femtosecond Absorption Spectroscopy Studies on the Energy Transfer from Phycobilisome to Thylakoid Membrane of Cyanobacteria Simulation of energy balance of SVAT system in the farming-pastoral zone of the Loess Plateau