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The on-chip growth and surface-functionalization have been recently regarded as promising techniques for large-scale fabrication of high performance nanowires gas sensors. Here we demonstrate a good NO2 gas-sensing performance of the tungsten oxide nanowires (TONWs) sensors realized by scalable on-chip fabrication and RuO2-functionalization. The gas(More)
Using the Vietnamese Household Living Standards Survey from 2006 (VHLSS 2006), this study investigates the factors affecting household expenditure on children’s education. The main findings from the Tobit model in this study are as follows: First, household income has significant effects on the total amount of educational expenditure. In most cases,(More)
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