843 research outputs found
Polystyrene/Fe3O4 composite latex via miniemulsion polymerization-nucleation mechanism and morphology
No full textSynthesis of P(AA-SA)/ZnO Composite Latex Particles via Inverse Miniemulsion Polymerization and its Application in pH Regulation and UV Shielding
No full textFacile Synthesis of One-to-One Copy of Monomer Droplet to Latex Particle via Equilibrium Stabilized Miniemulsion Polymerization
No full textNucleation Mechanism and Morphology of Polystyrene/Fe3O4 Latex Particles via Miniemulsion Polymerization Using AIBN as Initiator
No full textSynthesis of PMMA-b-PBA Block Copolymer in Homogeneous and Miniemulsion Systems by DPE Controlled Radical Polymerization
No full textHIGH RESOLUTION FOURIER TRANSFORM EMISSION SPECTROSCOPY OF YH AND YD.
No full textAuthor Institution: Department of Chemistry, University of Arizona; Department of Chemistry, University of WaterlooThe electronic emission spectrum of YH and YD has been investigated in the 690 nm to 3 spectral region using a Fourier transform spectrometer. The YH and YD bands were excited in an yttrium hollow cathode lamp operated with neon gas and a trace of of The observed bands have been classified into three different electronic transitions; and . The transition of YD could not be identified due to its very weak intensity. The rotational analysis of several bands of the transition (up to for YH and for YD) provides improved equilibrium vibrational and rotational constants for the ground state of YH and YD. The excited state is involved in several perturbations
Ca2+ and myosin-induced changes of the proximity between troponin-1 and tropomyosin in the reconstituted thin filament. A global Lret study
No full textA Compact Imaging Ellipsometer for Label-free Biosensor
No full textA compact model of imaging ellipsometer is used for the data acquisition and analysis of label free protein microarray. Its principle, methodology, and experimental setup as well as sampling conditions and a demonstration result are presented here. Furthermore, results of protein adsorption and protein interaction in the microarray may be deduced. This shows that the compact model is effectively performed as a reader for the protein microarray sampling and provides a potential for applications of label free protein microarrays on site of care
Effective components screening and anti-myocardial infarction mechanism study of the Chinese medicine NSLF6 based on "system to system" mode
No full textAbstract Background Shuanglong formula (SLF), a Chinese medicine composed of panax ginseng and salvia miltiorrhiza exhibited significant effect in the treatment of myocardial infarction (MI) in clinical. Because of the complex nature and lack of stringent quality control, it's difficult to explain the action mechanism of SLF. Method In this study, we present a "system to system" (S2S) mode. Based on this mode, SLF was simplified successively through bioactivity-guided screening to achieve an optimized minimal phytochemical composition (new formula NSLF6) while maintaining its curative effect for MI. Results Pharmacological test combining with the study of systems biology show that NSLF6 has activity for treatment MI through synergistic therapeutic efficacies between total ginsenosides and total salvianolic acids via promoting cardiac cell regeneration and myocardial angiogenesis, antagonistic myocardial cell oxidative damage. Conclusions The present S2S mode may be an effective way for the discovery of new composite drugs from traditional medicines.</p
A reconstructed discontinuous Galerkin method based on a Hierarchical WENO reconstruction for compressible flows on tetrahedral grids
Full text linkA reconstructed discontinuous Galerkin (RDG) method based on a hierarchical WENO reconstruction, termed HWENO (P1P2) in this paper, designed not only to enhance the accuracy of discontinuous Galerkin methods but also to ensure the nonlinear stability of the RDG method, is presented for solving the compressible Euler equations on tetrahedral grids. In this HWENO (P1P2) method, a quadratic polynomial solution (P-2) is first reconstructed using a Hermite WENO reconstruction from the underlying linear polynomial (P-1) discontinuous Galerkin solution to ensure the linear stability of the RDG method and to improve the efficiency of the underlying DG method. By taking advantage of handily available and yet invaluable information, namely the derivatives in the DG formulation, the stencils used in the reconstruction involve only von Neumann neighborhood (adjacent face-neighboring cells) and thus are compact. The first derivatives of the quadratic polynomial solution are then reconstructed using a WENO reconstruction in order to eliminate spurious oscillations in the vicinity of strong discontinuities, thus ensuring the nonlinear stability of the RDG method. The developed HWENO (P1P2) method is used to compute a variety of flow problems on tetrahedral meshes to demonstrate its accuracy, robustness, and non-oscillatory property. The numerical experiments indicate that the HWENO (P1P2) method is able to capture shock waves within one cell without any spurious oscillations, and achieve the designed third-order of accuracy: one order accuracy higher than the underlying DG method
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