Chunsheng Liu

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On-chip integrated network, the so-called network-on-chip (NoC), is becoming a promising communication paradigm for the next-generation embedded core-based system chips. The reuse of the on-chip network as test access mechanism has been recently proposed to handle the growing complexity of testing NoC-based systems. However, the NoC reuse is limited by the(More)
In this paper, we propose a new method for test access and test scheduling in NoC-based system. It relies on a progressive reuse of the network resources for transporting test data to routers. We present possible solutions to the implementation of this scheme. We also show how the router testing can be scheduled concurrently with core testing to reduce test(More)
Perfluorinated organic compounds (PFOCs) are emerging persistent organic pollutants (POPs) widely present in the environment, wildlife and human. We studied the cellular toxicology of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) on oxidative stress and induction of apoptosis in primary cultured hepatocytes of freshwater tilapia(More)
Chip overheating has become a critical problem during test of today's complex core-based systems. In this paper, we address the overheating problem in network-on-chip (NoC) systems through thermal optimization using variable-rate on-chip clocking. We control the core temperatures during test scheduling by assigning different test clock frequencies to cores.(More)
Tribromophenol (2,4,6-TBP) is ubiquitously found in aquatic environments and biota. In this study, we exposed zebrafish embryos (F(0); 2"" days post-fertilization, dpf) to environmental concentration (0.3 microg/L) and a higher concentration (3.0 microg/L) of TBP and assessed the impact of chronic exposure (120 dpf) on reproduction. TBP exposure did not(More)
Hexabromocyclododecane (HBCD) is widely used as a brominated flame retardant, and has been detected in the aquatic environment, wild animals, and humans. However, details of the environmental health risk of HBCD are not well known. In this study, zebrafish embryos were used to assess the developmental toxicity of the chemical. Four-hour post-fertilization(More)
Tris(1,3-dichloro-2-propyl) phosphate (TDCPP) has been frequently detected in the environment and in various biota, including fish, and has been implicated in disruption of the thyroid endocrine system. In the present study, zebrafish (Danio rerio) embryos were exposed to different concentrations of TDCPP (10, 50, 100, 300 and 600 μg/L) from 2 h(More)
Perfluorooctane sulfonate (PFOS) is widely distributed and persistent in the environment and wildlife. The main aim of this study was to investigate the impact of long-term exposure to low concentrations of PFOS in zebrafish. Zebrafish fry (F(0), 14 d post-fertilization, dpf) were exposed via the water for 70 d to 0 (control), 10, 50 and 250 microg L(-1)(More)