We consider the problem of displacement processes in a three-layer fluid in a Hele-Shaw cell modeling enhanced oil recovery processes by polymer flooding. The middle layer sandwiched between water and oil contains polymer-thickened-water. We provide lower bounds on the length of the intermediate layer and on the amount of polymer in the middle layer for stabilizing the leading front to a specif...

Five sialic acid variants have been demonstrated in normal, 'transitional', and tumour extracts of human large bowel mucosa by thin-layer chromatography. Two-dimensional thin-layer chromatography, with intermediate alkaline hydrolysis, confirmed that the variants were N-acetyl neuraminic acids with additional O-acylation. Cases studied so far show changes in the proportions of these variants in...

The mature akinete coat of a Cylindrospermum species contains laminar layers, not present in immature akinetes, and a thickened intermediate layer.

In this paper, we propose a novel framework for text-to-image generation based on association between text and image modalities. As an association model, we use hierarchical hypergraphs which consist of two layers including heterogeneous hypergraphs. While the first layer is composed of two hypergraphs: a text hypergraph and an image hypergraph, a hypergraph in the second layer associates two m...

BACKGROUND AND PURPOSE The subplate layer and intermediate zone are the precursors for neonatal white matter. The aims of this study were to evaluate 1) T1 and T2 signal intensity, and 2) FA of subplate and intermediate zone in postmortem fetuses and correlate with histology, and 3) T2 signal intensity of subplate and intermediate zone on antenatal MR imaging. MATERIALS AND METHODS Fourteen i...

The purpose of this study was to evaluate the individual contraction force during polymerization of a composite resin (Z-250), a flowable composite (Filtek Flow, FF) and a resin-modified glass ionomer cement (Vitrebond, VB), and the transmission of Z-250 composite resin polymerization contraction force through different thicknesses of FF and VB. The experiment setup consisted of two identical p...

OBJECTIVES As part a Program Project to evaluate emerging optical technologies for cervical neoplasia, our group is performing quantitative histopathological analysis of biopsies from 1,800 patients. Several methodological issues have arisen with respect to this analysis: (1) Finding the most efficient way to compensate for staining intensity variation with out losing diagnostic information; (2...

During air-gap formation in interconnects, decomposition process of the sacrificial layer induces deformation of a low-k dielectric cap layer. For analysis of ensuing structural instability, a logistic kinetics model is introduced to describe the removal process of the sacrificial layer, and finite difference method (FDM) is applied to evaluate the deformation behavior of the cap layer. The ins...

Colours in feathers are produced by pigments or by nanostructurally organized tissues that interact with light. One of the simplest nanostructures is a single layer of keratin overlying a linearly organized layer of melanosomes that create iridescent colours of feather barbules through thin-film interference. Recently, it has been hypothesized that glossy (i.e. high specular reflectance) black ...

One of the most challenging aspects to designing a Java messaging system for HPC is the intermediate buffering layer. The lower and higher levels of the messaging software use this buffering layer to write and read messages. The Java New I/O package adds the concept of direct buffers, which—coupled with a memory management algorithm—opens the possibility of efficiently implementing this bufferi...