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World’s smallest spirals could guard against identity theft(图)
smallest spirals guard against identity theft
2015/6/18
Take gold spirals about the size of a dime…and shrink them down about six million times. The result is the world’s smallest continuous spirals: “nano-spirals” with unique optical properties that would...
Fluorescence method for the determination of oil identity
fluorescence petroleum oil identification
2011/4/25
The paper presents an objective method for distinction and identification of oils based on the comparison of total fluorescence spectra of their hexane solutions. The spectra comparison was conducted ...