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A surface coated with cross-linked albumin film resists the adhesion of cells, and subsequent exposure to UV irradiation or electrostatic adsorption of a cationic polymer switches the surface from non-adherent to adherent. Taking advantage of this unique property of cross-linked albumin, the authors fabricated patterned cell co-cultures with desired patterns and cell types. In this scheme, the cell-adherent...
In this paper, we propose a guide system for daily life in semipublic spaces by adopting a gaze-communicative stuffed-toy robot and a gaze-interactive display board. The system provides naturally anthropomorphic guidance through a) gaze-communicative behaviors of the stuffed-toy robot (ldquojoint attentionrdquo and ldquoeye-contact reactionsrdquo) that virtually express its internal mind, b) voice...
We propose a gaze estimation method that substantially relaxes the practical constraints possessed by most conventional methods. Gaze estimation research has a long history, and many systems including some commercial schemes have been proposed. However, the application domain of gaze estimation is still limited (e.g, measurement devices for HCI issues, input devices for VDT works) due to the limitations...
We propose a method for modeling ununiform illumination conditions using multiple-camera-based marker observations. In computer graphics applications, multiple-camera-based object reconstruction is becoming popular for modeling 3D objects. However, geometrical and photo-metrical calibrations among multiple cameras still require high computational cost. We employ multiple observations of a spherical...
In this paper, we describe our methods of detecting human behavior in order to monitor and assist daily human tasks. To assist people in performing activities in daily life, we must be able to understand the system user's situation/state in the current task: what information is useful for the user now? Our posture-detection system using IR cameras and invisible IR pattern projectors detects the user's...
We propose a method of calibrating multiple camera systems that operates by adjusting the camera parameters and the 3D shape of objects onto silhouette observations. Our method employs frontier points, which are geometrically meaningful points on object surfaces, to determine the geometrical relations among multiple cameras. In contrast to conventional methods, both camera parameters and the 3D positions...
The ESR spectrum of the propagating radical of cyclohexyl acrylate (CHA) overlapping with a three-line spectrum of a mid-chain radical was recorded in benzene as a non-polar solvent. The hyperfine coupling constants for the α- and β-hydrogens of the propagating radical of CHA were assigned based on the spectrum of the polymer radical of CHA-α-d. The polymerization of CHA was found to proceed in the...
AbstractThe osmotic pressures of polyelectrolyte solutions without added salt was measured in the concentration ranges 0.0010.02 and 0.21.9molkg-1. Our results show that the osmotic coefficients p were strongly dependent on the chemical structures of polyelectrolyte through the polyion radius and the interaction between the ionic moiety and counterions. The osmotic pressures in polyelectrolyte solutions...
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