There is a need to improve fishing methods select for certain sizes and species while excluding others. Experiments are conducted quantify selectivity of gears how variables such as gear design (e.g., mesh size, shape), environmental parameters light, turbidity, substrate) or biological fish condition) alter selectivity; the resulting data be analyzed using specialized statistical in many cases...

Great efforts had been made to use indirect non-destructive tests in the geotechnical evaluation of rocks, especially sandstones, employing different empirical equations. However, most these equations have derived from hard and compacted sandstones data; therefore, focus this research is on weak weakly aiming firstly obtain for estimating their characteristics, secondly demonstrate visualize co...