The use of Artificial Neural Network (ANN) especially Backpropagation Neural Network (BPNN) has been a promising tool for well log analysis in predicting permeability. However, due to the range of permeability data, it is normally converted using logarithmic transform before being used for data analysis by the BPNN. This has an impact on the accuracy of the permeability prediction. This paper s...

In theories of multiphase flow through porous media, capillary pressure-saturation and relative permeability-saturation curves are assumed to be intrinsic properties of the medium. Moreover, relative permeability is assumed to be a scalar property. However, numerous theoretical and experimental works have shown that these basic assumptions may not be valid. For example, relative permeability is...

quality grading and nutrition value determination of fish are. nowadays necessary for aquatic processing. the present study was conducted to investigate a new, applied and cheap method of fillet quality grading for common carp (cyprinus carpio) using fish size, based on mathematical equations. for this reason, 61 specimens of cultured market size carp were used and after filleting, their moistu...

PURPOSE To present a novel method for quantitative assessment of retinal vessel permeability using a fluorescein angiography-based computer algorithm. METHODS Twenty-one subjects (13 with diabetic retinopathy, 8 healthy volunteers) underwent fluorescein angiography (FA). Image pre-processing included removal of non-retinal and noisy images and registration to achieve spatial and temporal pixe...

The influence of temperature on the transport properties cover concrete is crucial for adjusting in situ measurements. This study investigated effects storage room air permeability and water sorptivity Four conditions (5, 20, 30, 35 °C) with constant relative humidity (60%RH) were applied to 11 specimens produced using two types cement, five water-to-cement ratios, four curing periods. Three no...

INTRODUCTION Since the criteria of Light and colleagues for differentiating transudates and exudates were described, other tests, including the pleural fluid (PF) cholesterol test, have been proposed for the same purpose. However, the factors influencing PF cholesterol levels have not been clearly delineated. PURPOSE To analyze the relationships among total cholesterol (CHOL), low-density lip...