Study of permeability of Fibrous Composites is important in several natural and industrial processes in mechanical engineering. In this study, a comprehensive mathematical model is presented for calculation of normal permeability of ordered elliptical fibrous media. An innovative scale-analysis technique is employed for determining the normal permeability of elliptical fibrous media. In this te...

We report on an investigation concerning the utilization of morphological information obtained from a two-dimensional ~2D! slice ~thin section! of a random medium to reconstruct the full three-dimensional ~3D! medium. We apply a procedure that we developed in an earlier paper that incorporates any set of statistical correlation functions to reconstruct a Fontainebleau sandstone in three dimensi...

of the auditory ossicles in chronic otitis media patients. Materials and Methods: This study was carried out in 30 ears with chronic otitis media. All cases underwent an axial multidetector computed tomography imaging study. In addition to the axial images, sagittal and coronal multiplanar two-dimensional reformations and three-dimensional reconstructions were generated. Auditory ossicles were ...

abstract bottom intake is one of the most appropriate systems for diverting discharge in steep rivers. bottom intake with porous media is a new system of diverting discharge which can be replaced by bottom rack intakes. to investigate the hydraulic flow characteristics on diverted discharge of this intake, an experimental model was designed in which the inflow, diverted discharge and remained f...

We present a nonperturbative technique to study pulse dynamics in excitable media. The method is used to study propagation failure in one-dimensional and two-dimensional excitable media. In one-dimensional media we describe the behavior of pulses and wave trains near the saddle node bifurcation, where propagation fails. The generalization of our method to two dimensions captures the point where...