743 lipid as glycerol and cholesterol esters associated with sugar solutions containing glucose, fructose, and maltose. nic,vicanus were observed in z'izo to contain two clistinct liquid phases (Fig. 1). RESULTS AND DISCUSSION The single phase aqueous layers from both species proved to he typical dilute honey solutions. Silyl ethers of the sugars were determined by gas chromatography on OV-17 a...

Abstract Cretaceous is the key exploration target layer in eastern depression of North Yellow Sea basin, which has a good prospect for oil and gas exploration. Its huge resource potential attracted great attention from petroleum geologists. In this study, main rock types, reservoir space petrophysical characteristics controlling factors are studied through core observation, thin section identif...

The work is devoted to the creation of a sensor structure based on porous silicon membrane. under study integrates layer used as gas transport and sensitive non-stoichiometric tin oxide. paper investigates morphology shows permeability membrane silicon. sensitivity test obtained by passing gas-air mixture containing NO 2 has been studied. Keywords: silicon, membrane, oxide, thin films, resistiv...

double layer zno/sno2 thin film resistive gas sensors were fabricated by successive pvd of those oxides onto porcelain substrates. the metallic contacts were provided by electron beam evaporation of platinum onto substrates prior to deposition of the gas sensitive layers. deposits were thermally annealed at different temperatures. it was shown that the activation energy of electrical conduction...

A drop of a drying oil, i.e. an unsaturated glyceride:(linseed oil), spreads upon an oxidizing solution (MnO4K 0.1%) and forms, after a few hours, a thin, flexible floating membrane, showing bright interference colors; this indicates a thickness which can fall below 1 t~ (Monnier and Monnier, 1964). This membrane can be floated on a saline solution and can support a drop of another solution. Th...

By introducing a thin ZnO layer as an optical spacer, we have demonstrated that inserting this layer between an active layer and a reflective electrode results in a re-distribution of the optical electric field inside bulk heterojunction solar cells. A theoretical analysis by optical modeling showed that the thin ZnO layer could shift the position of the maximum of the electric field into the a...

This study investigated the use of headspace oxygen in a model food system to prevent the growth of anaerobic pathogenic bacteria in in-pack pasteurized food at various storage temperatures. Three model food formulations prepared with tryptic soy broth and three agar concentrations (0.1, 0.4 and 1.0%) were sealed without removing the air from the package in high oxygen barrier pouches (OTR=0.3c...

OBJECTIVES To investigate the influence of glass ionomer cement layers with various thickness and cement contamination on the fracture resistance of thin zirconia plates luted onto coplanar human molars. MATERIALS AND METHODS Zirconia plates measuring 0.7 mm in thickness were luted onto 70 coplanarly trimmed human molars with glass ionomer cement. Cement layers measuring 100, 250, 1000, and 2...

Large-scale, lateral fluid flow through oceanic crust provides an explanation for regionally low heat flow in several seafloor settings. A well-mixed aquifer (WMA) model provides a quantitative and conceptual tool for explaining anomalously low heat flow based on an analytical representation of fluid and heat flow, assuming lateral fluid flow in basement in a layer directly below the ocean sedi...