gas reservoirs with low permeability (k

Gas reservoirs with low permeability (k<0.1 mD) are among the unconventional reservoirs and are commonly termed as "Tight Gas Reservoirs". In conventional gas reservoirs that have high permeability, the flow of gas is basically controlled by the reservoir permeability and it is calculated using the Darcy equation. In these reservoirs, gas flow due to gas diffusion is ignored compared to Dar...

This paper provides new evidence on the predictive power of dividend yields for U.S. aggregate stock returns. Following Miller and Modigliani, we construct a measure of the dividend yield that includes all cash flows to shareholders. We show that this alternative cash-flow yield has strong and stable predictive power for returns, and appears robust to a battery of tests that have been proposed ...

Perceived orientation of axis of rotation and accuracy in discriminating fixed-axis from nonfixed-axis rotations were investigated for orthographic projections of three-dimensional rotating objects. The principal findings were (a) the slant of the axis of rotation was systematically misperceived; (b) in both two-view and multiview displays, the perceived slant of the axis of rotation was well-p...

Four experiments related human perception of depth-order relations in structure-from-motion displays to current Euclidean and affine theories of depth recovery from motion. Discrimination between parallel and nonparallel lines and relative-depth judgments was observed for orthographic projections of rigidly oscillating random-dot surfaces. We found that (1) depth-order relations were perceived ...

abstract background: gastric cancer is a life threatening disease. recent studies have shown that rosa damascene possesses noticeable biological effects on the human body. this study, investigates the anticancer effect of rosa damascena on gastric cancer cell line mkn45. methods: microscopic studies and mtt assay were used to examine morphological alteration, and cell survival of the cancer cel...

Direct numerical simulation of turbulent flow behind a cylinder, wake flow, using the random vortex method for an incompressible fluid in two dimensions is presented. In the random vortex method, the primary variable is vorticity of the flow field. After generation on the cylinder wall, it is followed in two fractional time step in a Lagrangian system of coordinates, namely convection and diffu...