For the bilevel decision problem with multiobjective, this paper discusses its decision mechanism from the decision makers preference relationship: semi-cooperation and pure independence, we show that their noninferior solution sets can be represented by using the augmented weighted Tchebycheff norm problems.

The interaction of water waves with a submerged circular cylinder in a two-layer fluid of finite depth;

Hydrodynamic characteristics of a submerged pulsating circular cylinder in a two-layer fluid of finite depth;

Added mass and damping of a floating rectangular box in a two-layer fluid;

The transient flow in two-layered reservoirs with weak cross-flow interlayer is investigated, including two cases, one is the flow in radical layered reservoirs with production in single zone, another is the flow in one-dimensional layered reservoirs with a producing well and a injection well in different zones.

Testing pressure technology of two-formation isolation and simultaneous pumping in well appraise in testing wells;