We demonstrate that superfluorescent scattering of light can occur when laser light is incident on a collection of dielectric Rayleigh particles suspended in a viscous medium. Using a linear stability analysis, an expression for the spatiotemporal evolution of the scattered (probe) field is derived. An approximate condition for the progression of the interaction into the nonlinear regime is ded...

A new microlaser design based on the high-reflectivity whispering-gallery modes around the edge of a thin semiconductor microdisk is described and initial experimental results are presented. Optical confinement within the thin disk plane results in a microresonator with potential for single-mode, ultralow threshold lasers. Initial experiments use selective etching techniques in the InP/InGaAsP ...

The primary treatment of municipal wastewater was investigated in three high-rate anaerobic filter (AF) reactors operated in parallel at different hydraulic retention time (HRT) of 0.5, 1 and 1.5 h at low ambient temperature (average = 13°C). The media in each reactor consisted of vertical sheets of reticulated-polyurethane foam (RPF) with knobs. The results demonstrated that the AF reactor was...

On the basis of the reported air quality index (API) and air pollutant monitoring data provided by the Guangzhou Environment Monitoring Stations over the last twenty-five years, the characteristics of air quality, prominent pollutants, and variation of the average annual concentrations of SO2, NO2, total suspended particulate (TSP), fine particulates (PM10), CO and dustfall in Guangzhou City we...

alpha-1-proteinase inhibitor (api) is one of the acute phase proteins. following an inflammatory stimuli the concentration of api increased up to four folds. accompanying these quantitative changes, there is qualitative alterations in the structure of carbohydrate moiety (glycosylation). to determine the alterations in the glycosylation of api in inflammation, api was isolated from the sera of ...

The Analytab Products, Inc. (API), anaerobic multitest microsystem (MICRO) was compared with the Center for Disease Control conventional (CONV) thioglycolate (supplemented with hemin and vitamin K1) system and with pre-reduced anaerobically sterilized (PRAS) media as recommended by the Virginia Polytechnic Institute. Growth from a solid medium was suspended to produce standard inocula. Substrat...

This paper describes the design and initial implementation of a software framework for exploiting resizability in distributed-memory parallel applications. By “resizable” we mean the ability at run-time to expand or contract the number of processes participating in a parallel application. The ReSHAPE framework described here includes a cluster scheduler, a library supporting data redistribution...