Measurements

by these three methods give consistent value

Measurements

by these three methods give consistent values to within BVD-523 similar to 15% of 39 mu m for the propagation length along 5-mu m-wide Au-stripe waveguides deposited on an oxidized silicon wafer and excited at a wavelength of 860 nm. This range is due to varying losses associated with the introduction of the nanoholes and nanoparticles. These losses are quantified and could be reduced with realistic experimental improvements. Finite-element computations find that propagation in these optically thick (107 nm) guides is intrinsically limited not only by Ohmic losses, but also by radiation emitted into the substrate from the stripe edges. The radiative loss depends on the slope of the edge sidewall and on the wafer oxide thickness, both of which must be considered when reconciling experiment with theory.”
“Songpyeon

is a Korean traditional food made of rice with different fillings. The fillings may affect the qualities of songpyeon, such as shelf-life. Therefore, quality characteristics of songpyeon filled with chopped black eyed peas (CBP) and unchopped black eyed peas (UCBP) were investigated during storage at room temperature. As a result, all samples had moisture content and pH values favorable for microbial growth. Hardness, gumminess, and chewiness were LY2157299 increased during storage. All sensory parameters values decreased steadily in stored songpyeon. The shelf-life of songpyeon was suggested to be only 2 days by the panelists. UCBP had higher number of total microbial loads, yeasts, and molds than those of CBP. Coliforms were not detected in songpyeon during storage. These results www.sellecn.cn/products/ly-411575.html suggested that songpyeon filled with UCBP had a shorter shelf-life than songpyeon filled with CBP.”
“A new approach is presented that combines kinetic and mechanistic considerations which take into

account chemical reactions and catalyst deactivation in the modeling of the catalytic degradation of polymers. Though acid-catalyzed hydrocarbon cracking reactions involve a large number of compounds, reactions and catalyst deactivation and are very complex, the model gives a good representation of experimental results from the degradation of polyethylene and polypropylene over fluidized acidic catalysts. This model provides the benefits of product selectivity for the chemical composition such as alkanes, alkenes, aromatics, and coke in relation to the effect of structurally different polymer feeds, the performance of the catalyst and the selection of their particle sizes, and the influence of different reaction temperatures. It is an improvement of the currently available empirical “”lumping”" techniques which usually are severely restricted in terms of product definitions. (C) 2009 Wiley Periodicals, Inc.

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