Ya-min Wang

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The physiological effects of sunflecks on understory plants are poorly understood. Kingdonia uniflora is an endemic and endangered species in China, with a patchy distribution over much of its range. Sunflecks are reportedly the likely dominant factor in determining its patchy distribution. We studied the photosynthesis of K. uniflora in the field to test(More)
Ethernet Passive Optical Network (EPON) has combined the advantages of Ethernet and Passive Optical Network (PON). High speed accessing at lower price has been realized in this way. In this paper, based on CBR (Constant Bit Rate), design issues of Dynamic Bandwidth Allocation (DBA) are studied and the improved DBA algorithm is proposed. Ensure effectively(More)
Orthogonal frequency division multiplexing is very suitable for high speed communication systems, but there are peaks higher than those problems. Partial Transmit Sequences OFDM because of its flexible and effective system to reduce peak-average power ratio has been studied extensively. Of previous research, the paper presents a search algorithm based on(More)
The experiments were made with Fragaria×ananassa Duch. cv. Toyonoka. It was studied that the effects of temperature on chlorophyll fluorescence of Fragaria×ananassa Duch. cv. Toyonoka by PAM-2100 in normal light environment. The activity of PSIIand the parameter of chlorophyll fluorescence in leaves such as conversion efficiency of primary(More)
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