Hongguang Li

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Scaling the number of cores on processor chips has become the trend for current semiconduction industry (i.e. Intel/AMD many-core CPU, Nvida GPU etc). Current software development should take advantage of those multi-core platforms to achieve high performance. But it is a challenging task to develop parallel software on multiple processor because of the(More)
Photodynamic therapy (PDT) and photothermal therapy (PTT) are two promising methodologies for cancer therapy. Although a variety of materials which can be used in PDT and PTT have been developed in the past decades, those showing the combined effect of PDT and PTT under NIR irradiation are rare. Graphene oxide (GO) and fullerene C60 (denoted as C60(More)
The production of ROS in mitochondria plays critical role in photodynamic therapy (PDT). The aim of this study was to investigate whether fullerene-based PDT can induce generation of additional endogenous ROS in mitochondria. Chitosan oligosaccharide grafted fullerene conjugate (CS-C60) was synthesized as a model water-soluble fullerene. The relationship(More)
Given a hierarchical architecture of process control hybrid system, this paper describes a method for constructing a Petri net hybrid controller in its process layer. The process hybrid controller uses PID algorithm for steady state regulation and hybrid switching strategy for large changes. Based on Petri net place invariants the hybrid switching(More)
This paper develops two component-level control-limit preventive maintenance (PM) policies for systems subject to the joint effect of partial recovery PM acts (imperfect PM acts) and variable operational conditions, and investigates the properties of the proposed policies. The extended proportional hazards model (EPHM) is used to model the system failure(More)
Conventional cationic and anionic (catanionic) surfactant mixtures tend to form precipitates at the mixing molar ratio of the cationic and anionic surfactant of 1:1 because of the excess salt formed by their counterions. By using OH- and H+ as the counterions, however, excess salt can be eliminated, and salt-free catanionic systems can be obtained. Here, we(More)
Research and development in microelectromechanical systems (MEMS) have made remarkable progress since the advent of the first electrostatic micromotor in 1987. Considerable efforts have been directed to the investigation of the failure mechanisms and reliability of electrostatic micromotors. This paper provides a brief overview of failure modes and(More)
We give a detailed confocal fluorescence microscopy study on reverse vesicles from a salt-free catanionic surfactant system. When tetradecyltrimethylammonium laurate (TTAL) and lauric acid (LA) are mixed in cyclohexane at the presence of a small amount of water, stable reverse vesicular phases form spontaneously. The reverse vesicular phases can be easily(More)
An improved real-time evolution (RTE) strategy is proposed in an effort to apply RTE more accurately in optimization. The improved RTE tries to consider parameter update and employs a new algorithm as a substitution of the direct search. Algorithm performance comparisons are made among direct search, particle swarm optimization (PSO) and genetic algorithm(More)