Abstract. The one-dimensional motion of compressible viscous and heat-conductive fluid is investigated in the half space. By examining the sign of fluid velocity prescribed on the boundary, initial boundary value problems with Dirichlet type boundary conditions are classified into three cases: impermeable wall problem, inflow problem and outflow problem. In this paper, the asymptotic stability ...

The permeability of the ocular blood vessels to sodium fluorescein (NaFl) was evaluated in neonatal and adult cats by fluorescence microscopy. The iris, ciliary body, and choroidal vessels were markedly permeable, whereas the mature and immature retinal vessels were impermeable. Since there is no apparent barrier to NaFl at the level of the iris vessels, the role of those vessels in aqueous for...

The sporicidal activity of peracetic acid (PAA) vapor at 20, 40, 60, and 80% relative humidity (RH) and 25 C was determined on Bacillus subtilis var. niger spores on paper and glass surfaces. Appreciable activity occurred within 10 min of exposure to 1 mg of PAA per liter and 40% or higher RH. The sporicidal rate decreased from the optimum at 80% RH to a slight effect at 20% RH. Spores on an im...

El objetivo de esta investigación fue determinar el papel las estructuras que cubren la semilla del frijol (Phaseolus vulgaris L.) en proceso absorción agua. Se evaluaron cuatro tratamientos a siete genotipos silvestres y cinco cultivados: intacta, abierta, escarificada con área micrópilo-hilio sellada. Las variedades testa relativamente impermeable mostraron una baja velocidad imbibición cuand...