Bending membranes on demand: fluid phospholipid bilayers on topographically deformable substrates

We combine hierarchical surface wrinkling of elastomers with lipid membrane deposition techniques to dynamically template complex three-dimensional topographies onto supported lipid bilayers. The real-time introduction of corresponding nano- to micrometer scale curvatures triggers spatially periodic, elastic bending of the bilayer, accompanied by molecular-level reorganizations. This ability to dynamically impose curvatures on supported bilayers and the ensuing re-equilibration promises fundamental material and biophysical investigations of curvature-dependent, static heterogeneities and dynamic reorganizations pervasive in biological membranes.     

无线传感器网络自身定位算法研究

无线传感器网络是一种特殊的无线自组织网络,在很多领域有着广泛的应用,定位是他的一项支撑技术。GPS是一种传统的定位技术,但他不适用于传感器网络节点的定位。近些年,国内外提出了很多有价值的算法,总结了现有的算法,通过分析认为两种求精算法Robust positioning和N-hop multilateration是比较优秀的算法,最后提出了今后还要做的工作。     

Technologies Assisting the Paradigm Shift from 4G to 5G

Recent research in Mobile Ad-hoc Networks mostly deals to minimize the congestion in the network. In this regard, a variety of query-broadcast techniques have been proposed, and employed to reduce routing overhead such as the congestion, route-latency and energy-consumption. Such techniques mainly focus on reducing unnecessary propagation of route-query by repealing the query-broadcast. In our research findings, we found these repealing techniques have extra routing-overhead of chasing the route-query thus increasing energy-consumption and slowing down the route-discovery. In particular, this motivates us to propose a cache-aware broadcasting technique. In order to evaluate the proposed technique, the critical and analytical assessment is done in terms of query-diffusion, route-latency, packet-delivery ratio and energy-consumption ratio.