Preserving the integrity of cement–bentonite cut-off walls, particularly in aggressive environments, is critical to their serviceability polluted sites. The hardened material walls highly susceptible desiccation and wet–dry cycles, commonly leading cracking. objective work presented this paper was develop crack-resistant wall materials subject cycles. Superabsorbent polymers (SAPs), which are c...

<p><span>Finite element method is an efficient numerical calculation based on information technology, which can be used to solve complex equations in various problems. At present, the finite mainly deal with seepage problems dams, while there less study landfill. In this paper, analyze of cut-off wall a landfill Jiangsu Province, and movement leachate under different conditions simu...

cumin (cuminum cyminum) is an annual suitable for the dry and semi-dry areas of iran. recently, farmers have chosen to plant cumin because it requires less water and growth time. however, at harvest time, the resistance of cumin seed to shatter is low and, if careful attention is not paid to this fact, a major portion of the crop can be lost. when the connection force of the seed decreases, see...