Jinsong Liang

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Abstract: This paper presents a numerical solution for a mobile sensor motion trajectory scheduling problem under nonholonomic constraints of a project named MAS-net, which stands for Mobile Actuator-Sensor network. The motivation of the MAS-net project, at the first stage, is to estimate diffusion system parameters by networked mobile sensors. Each sensor(More)
While sand filters are widely used to treat drinking water, the role of sand filter associated microorganisms in water purification has not been extensively studied. In the current investigation, we integrated molecular (based on metagenomic) and physicochemical analyses to elucidate microbial community composition and function in a common sand filter used(More)
In this paper, we discuss the application of Voronoi diagram and central Voronoi tessellations in the distributed control of mobile robots for area coverage, dynamic target tracking and feedback control of the environment. Based on [1], we extend the application of central Voronoi tessellations (CVT) to a dynamic changing environment, provided that the(More)
In many megacities wastewater is an important source of surface water, particularly during drought periods. While changes in surface water chemistry associated with effluent inflow have generally been well-studied, few data have been collected on the effects to prokaryotic communities. The objective of this study was to explore the impacts of treated and(More)
Microbial communities play a critical role in the degradation of effluent contaminants in constructed wetlands. Many questions remain, however, regarding the role ofmicrobial communities in rhizospheric soil. In this study, we used metagenomic analysis to assess microbial community composition and function in a constructed wetland receiving surface water.(More)
This paper presents a numerical solution for a mobile sensor motion trajectory scheduling problem under nonholomonic constraints of a project named MAS-net, which stands for mobile actuator-sensor network. The motivation of the MAS-net project, at the first stage, is to estimate diffusion system parameters by networked mobile sensors. Each sensor is mounted(More)
In this paper, the problem of distributed neutralization of toxic 2D diffusion process is discussed. The diffusion process is modelled by a parabolic PDE system. A group of mobile robots which can release neutralizing chemicals are sent to detoxify the pollution. We attempt to solve the optimal actuator location problem by using Centroidal Voronoi(More)
In natural or engineered environments, diverse interspecific interactions among two or more microbial taxa may profoundly affect the transformation of organic compounds in the media. Little is known, however, about how these organisms and interactions affect the transformation of heavy metals. Recently, we found an interaction between two(More)
Microbes have great potential for arsenic (As) and antimony (Sb) bioremediation in heavily contaminated soil because they have the ability to biotransform As and Sb to species that have less toxicity or are more easily removed. In this study, we integrated a metagenomic method with physicochemical characterization to elucidate the composition of microbial(More)
As(III&V), Mn(II), and Fe(II) may occur simultaneously in some groundwater and surface water. Studying their redox reactions and interactions is essential to unravel the biogeochemical cycles of these metal ions in aquatic ecosystems and to find effective methods to remove them simultaneously in drinking water treatment. Here, the formation of biogenic(More)