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Geometry processing in CAD proposes rigorous requirements on mesh quality. In this paper an integrated triangular mesh optimization method is proposed. Edge marking function and local edge operations are used to improve the vertex sampling. Modified weighted centroidal Voronoi tessellation is employed to regularize the triangle geometry. A simulated(More)
Nitrite-dependent anaerobic methane oxidation (n-damo) process can play an important role in the methane mitigation in the environment. However, the distribution of n-damo organisms in freshwater sediment ecosystem and the associated environmental factors remain essentially unclear. The present study investigated the temporal and spatial dynamics of(More)
Nitrite-dependent anaerobic methane oxidation (n-damo), catalyzed by microorganisms affiliated with bacterial phylum NC10, can have an important contribution to the reduction of the methane emission from anoxic freshwater sediment to the atmosphere. However, information on the variation of sediment n-damo organisms in reservoirs is still lacking. The(More)
Nitrite-dependent anaerobic methane oxidation (n-damo) process might be an important methane sink in wetland system. However, information on n-damo microorganisms in constructed wetland (CW) system for water treatment is still lacking. The present study investigated the n-damo communities in five full-scale vertical-flow CW systems with different plants.(More)
In this paper a systematic remeshing method of triangle mesh surface is proposed for CAD applications. A density-sensitive edge marking function is proposed for surface resampling. Surface energy minimization is used to redistribute vertices for face geometry regularization. A simulated annealing method is proposed for vertex connectivity optimization.(More)
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