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Polystyrene-block-poly(4-vinylpyridine) (PS-b-PVP) forms hairy micelles with PVP and long PS block as the core and corona in toluene, respectively. Diffusion of the micelles in solution in the presence of poly(methyl methacrylate) (PMMA) or polystyrene homopolymer (h-PS), from dilute to semidilute, has been investigated by laser light scattering (LLS). Our results indicate the micelles only exhibit...
The enzymatic degradation of poly(ɛ-caprolactone) (PCL) has been investigated by using quartz crystal microbalance with dissipation (QCM-D) and surface plasmon resonance (SPR) in situ. The frequency and dissipation responses of QCM-D and the SPR signal responses can well describe the weight loss and the morphological changes of a PCL film. Our experiments reveal that the degradation has much dependence...
Peer-to-peer networks have become a prevailing platform to support large volume data transfer on the Internet. However, the relative independency between the P2P layer and the underlying network layer degrades network performance. In this paper, we propose a light-weighted scheme to support cooperation between P2P networks and ISP infrastructures. In this method, edge routers act as traffic lights...
The main task of system reliability design is to find the best layout of components to maximize reliability or to minimize cost. A reliability optimization approach using neural networks to identify the choice of components in series-parallel systems with multiple constraints is presented in this paper. The McCulloch-Pittes neural network model is used in this approach. The design methods of the neural...
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