Synthesis, Characteristics and Application of Single Atom Catalysts

Single-atom catalysts (SACs), comprised of monodispersed metal atoms on various supports with large surface area, have been demonstrated to exhibit high efficiency and selectivity in energy-related or environmental catalysis, far exceeding those of metal nanoparticles catalysts. However, the challenge of SACs is how to develop a facile method for the controllable synthesis of SACs with high mass loading. Therefore, a series of works was conducted around the controlled synthesis, characterization and application of SAC

2-D Coherence Factor for Sidelobe and Ghost Suppressions in Radar Imaging

The coherence factor (CF) is defined as the ratio of coherent power to incoherent power received by the radar aperture. The incoherent power is computed by the multi-antenna receiver based on only the spatial variable. In this respect, it is a one-dimensional (1-D) CF, and thereby the image sidelobes in down-range cannot be effectively suppressed. We propose a two-dimensional (2-D) CF by supplementing the 1-D CF by an incoherent sum dealing with the frequency dimension. In essence, we employ both spatial diversity and frequency diversity which, respectively, enhance imaging quality in cross range and range. Simulations and experimental results are provided to demonstrate the performance advantages of the proposed approach.Comment: 7 pages, 21 figure

Serum cystatin C and chemerin levels in diabetic retinopathy

Peer reviewedPublisher PD

Conformationally Controlled Oligocholate Membrane Transporters: Learning through Water Play

Controlled translocation of molecules and ions across lipid membranes is the basis of numerous biological functions. Because synthetic systems can help researchers understand the more complex biological ones, many chemists have developed synthetic mimics of biological transporters. Both systems need to deal with similar fundamental challenges. In addition to providing mechanistic insights into transport mechanisms, synthetic transporters are useful in a number of applications including separation, sensing, drug delivery, and catalysis