Zhili Zhang

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BACKGROUND Over the last decade safety concerns have arisen about the use of metal-based nanoparticles in the cosmetics field. Metal-based nanoparticles have been linked to both environmental and animal toxicity in a variety of studies. Perhaps the greatest concern involves the large amounts of TiO2 nanoparticles that are used in commercial sunscreens. As(More)
Though much research has been conducted for nanoparticles, naturally occurring nanoparticles have not yet been well explored for their diverse properties and potential applications. This paper reports the optical absorption and scattering properties of nanoparticles secreted by English ivy. Both experimental and theoretical studies have been conducted.(More)
We report, in this paper, several findings about the swimming and attachment mechanisms of Giardia lamblia trophozoites. These data were collected using a combination of a high-contrast CytoViva imaging system and a particle image velocimetry camera, which can capture images at speeds greater than 800 frames/s. Using this system, we discovered that, during(More)
A full-length WRKY cDNA, designated as HbWRKY1, was isolated from the latex in Hevea brasiliensis. The deduced HbWRKY1 contained 303 amino acid residues with one WRKY domain and one zinc-finger motif, and shared high identity to WRKYs from other plant species. The phylogenetic tree showed that HbWRKY1 was classified into group-II WRKYs. Many cis-acting(More)
Grid computing has been a hot spot recent year. In grid computing applications, resource management and job scheduling are the most crucial problems in grid computing systems. In this paper, we try to present a novel agent-based dynamic grid resource management model considering both the resource management and job scheduling as a coalition integrity, so as(More)
— Current IP-geolocation mapping schemes [10], [12], [13], [14] primarily take delay-measurement approach, and most of them are based on the assumption of a strong correlation between networking delay and geographical distance between the targeted client and the landmarks. In this paper, however, we investigate a large region of the Internet and find the(More)