The astrophysical p-process is responsible for the origin of the proton rich nuclei,which are heavier than iron. A huge network involving thousands of reaction rates is necessary to calculate the final p-abundances. But not all rates included in the network have a strong influence on the p-nuclei abundances. The p-process was investigated using a full nuclear reaction network for a type II supe...

The beautiful target and spiral patterns exhibited by the Belousov-Zhabotinsky (BZ) reaction in thin films of solution are representative of spatiotemporal behavior in a two-dimensional, planar excitable medium. 14 We report here BZ chemical waves propagating on the two-dimensional surface of a sphere. Singleand double-rotor spiral waves develop on the surface of a single cation exchange bead, ...

The reaction of Nevada opal with calcium hydroxide, potassium and lithium hydroxide solutions was investigated. In addition opal was exposed to a combined solution of these three hydroxides. The progress of the three reactions was followed using X-ray Diffraction (XRD), 29 Si Nuclear Magnetic Resonance (NMR) and Scanning Electron Microscopy (SEM). The XRD results indicated the presence of a low...

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Related Articles Lagrangian evolution of the invariants of the velocity gradient tensor in a turbulent boundary layer Phys. Fluids 24, 105104 (2012) Effects of moderate Reynolds numbers on subsonic round jets with highly disturbed nozzle-exit boundary layers Phys. Fluids 24, 105107 (2012) Particle transport in a turbulent boundary layer: Non-local closures for particle dispersion tensors accoun...

The formose reaction in reverse micelles of aerosol-OT (AOT), triton X-100 (TX), and hexadecyltrimethylammonium bromide (CTAB) was investigated. Time-conversion data have indicated that the interfacial water layer of AOT reverse micelles is a medium that accelerates formation of glycolaldehyde in the formose reaction. The 13C NMR spectra for the products of the formose reaction using formaldehy...

UNLABELLED We propose PEDOT PSS as a multi-functional composite material for an enhanced Li-air-battery air electrode. The PEDOT PSS layer was coated on the surface of carbon (graphene) using simple method. A electrode containing PEDOT PSS-coated graphene (PEDOT electrode) could be prepared without binder (such as PVDF) because of high adhesion of PEDOT PSS. PEDOT electrode presented co...

Well-ordered ultrathin ZnO(0001) films were grown on Pt(111) in a layer-by-layer mode. The reactivity of the films as a function of the film thickness and coverage was examined by the CO oxidation reaction at near-atmospheric pressures. At low temperatures ( 450 K), CO2 production is found to be much higher on the films of partial coverage than on dense ZnO(0001) films and bare Pt(111). Under r...

The ability to catalyse an electrode reaction via direct (mediatorless) electron transfer has been demonstrated for a number of redox enzymes. In the case of mediatorless electron transfer, the electron is transferred directly from the electrode to the substrate molecule via the active site of the enzyme, or vice versa. The electron itself is the second substrate for the reaction. An important ...

NBTI of the HfSiOx/TiN gate stack is investigated as a function of the dielectric thickness. It is shown that as the thickness of the HfSiOx layer is reduced below 20Å, the NBTI mechanism approaches the mechanism that induces H-reaction diffusion. Conversely, for thicker HfSiOx dielectrics, a combination of H-reaction-diffusion and charge detrapping from the bulk HfSiOx contribute to NBTI.