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This paper describes the implementation of a twisting skill to a multi-DOF end effector for manipulating linear deformable objects (LDOs). When manipulating of LDOs such as rope knotting, an important factor is to control torsion. However, controlling torsion is difficult using only the robot arm movement because of the range limit of a manipulator and the danger of collision with the environment...
This paper describes a method for generating hand trajectories for a robot to enable it to place a rope on a table in a target shape. In many aspects of rope-work, e.g., making knots, hitches, and bends, it is important to control not only the topological relations (e.g., a tangle of string), but also to control the shape (e.g., the position, size, and so on). The shape of the rope on a table is the...
We have measured two-dimensional photoelectron spectra of graphite with various photon energies. We investigated the photon energy dependence of the valence band dispersions of graphite at vicinity of Fermi level which appear at Brillouin zone (BZ) corners. We found that the photoelectron intensities of the Fermi surfaces were, however, very different even when the photon energies are selected to...
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