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An adaptive switching median filter (ASMF) is presented in this paper. Extensive simulation shows that it can provide very high quality restored images for images that are contaminated by “salt & pepper” noise, especially when the noise density is large. Comparing with other median filtering methods, the ASMF can effectively remove(More)
We carried out a field experiment in order to study effects of fertilization in juvenile plants of three coffee (Coffea arabica) cultivars in Yunnan, SW China. Fertilization treatments included a control without fertilizer (CK), combinations of three NPK fertilization rates [high fertilization (FH), medium fertilization (FM), and low fertilization (FL) with(More)
Materials. N-isopropylacrylamide (NIPA, Acros, 98%) was recrystallized from benzene and n-hexane (1:3). 2-Hydroxyethyl methacrylate (HEMA, Acros, 98%) and Methacrylic acid (MAA, Acros, 98%) were treated by passing through a column of alumina for removal of inhibitor and then was distilled in a vacuum. Tetra(p-carboxylic phenyl) porphyrin (TCPP, 99.8%) was(More)
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