Li-jing Bai

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The experiment was conducted to investigate the effects of different forms of nitrogen application (ammonium, NH4(+) -N; nitrate, NO3(-) -N; and amide-N, NH2-N) and different concentrations (40, 200 and 800 mg/L) on N2O flux from the fluvo-aquic soil in a lab-simulated freezing and thawing process. N2O flux slowly decreased with soil freezing, and then(More)
In this work, we present an analytical model of malware spreading in Wireless Personal Area Networks (WPAN) based on IEEE 802.15. This model describes WPAN by means of some statistical parameters such as the average node degree of the network, the average encountering rate between nodes and the duration of connection etc. Also it expounds what effects the(More)
The growing popularity of short-range wireless networks makes them increasingly attractive to malware writers, and malware targeting portable wireless-enabled devices such as Bluetooth-enabled smart phones has already begun to appear. In this paper, using the theories of epidemics, we present a propagation model of malware in short-range wireless networks(More)
We present a model of worm spreading in Bluetooth based on IEEE 802.15. This model describes BLUETOOTH NETWORKS with some statistical parameters such as the average degree of the network, the average encountering rate between nodes and connection time etc. At the same time, it expounds what effects the network protocols and moving patterns have on the(More)
We investigate the effects of risk perception in a SIS model for malware propagating in different types of networks such as regular, random and scale-free. We assume that the perception of the risk of being infected rely on the fraction of neighbors that are infected. The effects are mainly affected by two parameters denoted by J and  , which(More)
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