In this work we discuss the idea of one-way acoustic signal isolation in low dimensional nanoelectromechanical oscillators. We report a theoretical study showing that one-way conversion between in-phase and anti-phase vibrational modes of a double layer graphene nanoribbon is achieved by introducing spatio-temporal modulation of system properties. The required modulation length in order to reac...

Lines generated by marginal deformations of WZW models are considered. The Weyl symmetry at the WZW point implies the existence of a duality symmetry on such lines. The duality is interpreted as a broken gauge symmetry in string theory. It is shown that at the two end points the axial and vector cosets are obtained. This shows that the axial and vector cosets are equivalent CFTs both in the com...

The context of this contribution is the recognition and localization of a priori known 3D objects from single intensity images. The most difficult task is to establish appropriate correspondences between model and image features. The ranking of correspondences typically is based on properties of the features themselves as well as relations between the features. Useful relations can be derived f...

Abstract To ensure the normal and stable operation of power system, it is important to repair broken loose strand lines in a timely manner. In view limitations shortcomings repairing strands overhead transmission lines, this paper designs set robots that can automatically online. First, research design for mechanical system ground wire device including walking pre-twisted winding system; then d...

PURPOSE To introduce a new modification of transposition flap technique for reconstruction of the medial canthal region. METHODS This prospective study included 58 patients with the full thickness involvement of both upper and lower lid in the medial canthal area. Reconstruction of posterior lamella was performed by utilizing periosteal flaps and tarsoconjunctival grafts, and anterior lamella...

Peter Kilroy King’s College London London, UK Abstract Drawing on the ields of postcolonial studies and media theory, this article analyzes Frances Calvert’s 1990 documentary, Talking Broken, which, inter alia, looks at the role of space, place and media amongst Australia’s “other” Indigenous community, Torres Strait Islanders. he article explores the historical and geographical complexity of t...