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See detailEurope's New Scientific Elite: Social Mechanisms of Science in the European Research Area.
Hoenig, Barbara UL

Postdoctoral thesis (2015)

The inquiry pursued the question whether the process of European integration in research funding has led to new forms of oligarchization and elite formation in the European Research Area. Empirically, we ... [more ▼]

The inquiry pursued the question whether the process of European integration in research funding has led to new forms of oligarchization and elite formation in the European Research Area. Empirically, we provided a case study on the European Research Council (ERC), which for the first time represents a case of institution-building in research funding at supranational level. The fact that the ERC intervenes into public science systems so far mostly organised at national level, thus simultaneously transforming traditional structures in the social organization of research, has motivated our hypothesis of an oligarchization process reproducing a new scientific elite in Europe. In scrutinising that presupposition we sought to identify those social mechanisms that generate, reproduce and possibly modify existing dynamics of stratification and oligarchization as an outcome of European integration in the area of science. [less ▲]

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See detailMeshless methods for shear-deformable beams and plates based on mixed weak forms
Hale, Jack UL

Postdoctoral thesis (2013)

Thin structural theories such as the shear-deformable Timoshenko beam and Reissner-Mindlin plate theories have seen wide use throughout engineering practice to simulate the response of structures with ... [more ▼]

Thin structural theories such as the shear-deformable Timoshenko beam and Reissner-Mindlin plate theories have seen wide use throughout engineering practice to simulate the response of structures with planar dimensions far larger than their thickness dimension. Meshless methods have been applied to construct numerical methods to solve the shear deformable theories. Similarly to the finite element method, meshless methods must be carefully designed to over- come the well-known shear-locking problem. Many successful treatments of shear-locking in the finite element literature are constructed through the application of a mixed weak form. In the mixed weak form the shear stresses are treated as an independent variational quantity in addition to the usual displacement variables. We introduce a novel hybrid meshless-finite element formulation for the Timoshenko beam problem that converges to the stable First-order/zero-order finite element method in the local limit when using maximum entropy meshless basis functions. The resulting formulation is free from the effects shear-locking. We then consider the Reissner-Mindlin plate problem. The shear stresses can be identified as a vector field belonging to the Sobelov space with square integrable rotation, suggesting the use of rotated Raviart-Thomas-Nedelec elements of lowest-order for discretising the shear stress field. This novel formulation is again free from the effects of shear-locking. Finally we consider the construction of a generalised displacement method where the shear stresses are eliminated prior to the solution of the final linear system of equations. We implement an existing technique in the literature for the Stokes problem called the nodal volume averaging technique. To ensure stability we split the shear energy between a part calculated using the displacement variables and the mixed variables resulting in a stabilised weak form. The method then satisfies the stability conditions resulting in a formulation that is free from the effects of shear-locking. [less ▲]

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