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Although deformation processes in submicron-sized metallic crystals are well documented, the direct observation of deformation mechanisms in crystals with dimensions below the sub-10-nm range is currently lacking. Here, through in situ high-resolution transmission electron microscopy (HRTEM) observations, we show that (1) in sharp contrast to what happens(More)
In this paper, we study the electromagnetic scattering from a two dimensional large rectangular open cavity embedded in an infinite ground plane, which is modelled by Helmholtz equations. By introducing nonlocal transparent boundary conditions, the problem in the open cavity is reduced to a bounded domain problem. A hypersingular integral operator and a(More)
In this paper, we propose a composite preconditioner for the electromagnetic scattering from a large cavity. The electromagnetic cavity problem is described by the Helmholtz equation with a nonlocal boundary condition on the aperture of the cavity and Dirichlet (or Neumann) boundary conditions on the walls of the cavity. The preconditioner proposed here(More)
A new series of glycosyl oxadiazoles compounds were synthesized and characterized through (1)H NMR, (13)C NMR, IR and HRMS. The anti-tumor activities for MDA-MB-231 of all these new compounds were screened in vitro by MTT assay. Due to the modification of gastrodin analogues, the anti-tumor activities of these 1,3,4-oxadiazoles derivatives were greatly(More)
The paper is concerned with the electromagnetic scattering from a large cavity embedded in an infinite ground plane. The electromagnetic cavity problem is described by the Helmholtz equation with a nonlocal boundary condition on the aperture of the cavity and Dirichlet (or Neumann) boundary conditions on the walls of the cavity. A tensor product Galerkin(More)
Prior research has paid very little attention, if at all, to the risks and costs entailed in IT disintegration processes. In this study, we begin addressing this gap by studying how IT disintegration challenges posed by corporate divestitures affect the regulatory compliance risks and costs of divesting firms in the context of the Sarbanes-Oxley Act of 2002(More)