Abstract: A three-dimensional contact problem with the orthotropic Coulomb friction is formulated in the form of a system of nonlinear equations. The nonlinear complementarity formulation derived naturally ...

Abstract: Engine knocking and misfire cause a negative effect on the engine power and the exhaust emissions such as HC, CO and NOx. They also cause permanent damages to the three way catalyst (TWC) ...

Abstract: In the case of mechanical structures joined by bolts and nuts, many studies have been conducted on the stiffness of the joined members. Accordingly, an appropriate formula for this case has already been formulated and ...

Abstract: Coal piles stored directly on soil surfaces may pose a risk of ground-water contamination, particularly when extremely acidic coal-pile leachates, which contain elevated concentrations of heavy metals, are generated. ...