Mutual learning of multi-consciousness agents,including an ego for an autonomous vehicle

In this paper, we propose a multi-agent learning system for the control of an intelligent robot, based on a model of the human consciousnesses, including the ego. We pay attention to the intelligent learning processes of human beings. We try to give a robot a high learning ability by modeling the roles of the human consciousnesses, including the ego. In most ordinary methods, the instructions for learning are given from outside the system only. In the proposed method, the instructions are given not only from outside, but also from inside (from other agents in the system). Therefore, the robot can learn efficiently because it has more instructions than usual. The learning is also more flexible, since an agent learns by instructions from other agents while the learning agent and one of the instructing agents exchange roles according to changes in the environment. We experimentally verified that the proposed method is efficient by using an actual robot.     

Function of glycine during solid-state reaction toward well-crystallized fine particulate barium titanate

Effects of glycine added to BaCO₃ and TiO₂ mixtures were examined during a solid-state reaction toward phase pure BaTiO₃ for MLCC with the average particle size below 180 nm and the tetragonality, c/a, above 1.009. Changes in the states of glycine during heating were monitored by differential thermogravimetry and high-temperature X-ray photoelectron spectroscopy. Glycine residue persists up to around 350 °C and destabilizes Ti–O bonds in TiO₂ prior to the initiation of reaction toward BaTiO₃. This, in turn, leads to a decrease in the reaction termination temperature due to higher mobility of Ba²⁺ ions through the reaction zone.     

Studies on electronic processes in graphite during the last decade in Japan

This paper intends to briefly review the studies on the energy band structure and electron transport properties of graphite which have been performed in Japan mostly during the last decade, say since around 1970. Topics dealt with are the overall band structure calculated on the basis of the combined OPW-TB approximation, topographical research of the Fermi surface, anomalous transport phenomena resulting from the extremely strong electron-phonon coupling, c-axis conduction in connection with the stacking fault structure, new important findings obtained through further detailed investigation of galvano-magnetic effects, and the quantum-limit behaviors under ultrahigh magnetic fields leading to an electronic phase transition.     

Temperature-Stable lead-Relaxor-Based Ceramic Dielectrics with Chemical lnhomogeneity

Matrix grains of Pb-relaxor ceramics with chemical inhomogeneity, showing the so-called core-shell structure already reported for BaTiO₃-based X7R ceramics, were obtained by a controlled sintering process in a MgO-excess and PbO-excess PMN-PMW-PT system. Multilayer ceramic capacitors exhibiting the X7T specifications were then fabricated from the 8 mol% MgO excess and 4 mol% PbO excess powder. Their chemical inhomogeneity was stable, showing a decrease of capacitance of only 2.9% after an 800-h aging test.