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Taniguchi Y.,Kindai University
Proceedings - 2014 4th International Conference on Artificial Intelligence with Applications in Engineering and Technology, ICAIET 2014 | Year: 2014

In time division multiple access (TDMA) based wireless networks, graph coloring based link scheduling mechanisms are often considered to assign time slots to links. A graph coloring based link scheduling mechanism requires a radio interference estimation method to make a conflict graph from a wireless network topology, and the protocol method is usually used among radio interference estimation methods. In this paper, we propose a radio interference estimation method for wireless relay networks, where the network topology is a tree. Through simulation experiments, we show that the accuracy of radio interference estimation with our proposed method is improved compared to that with the protocol method. © 2014 IEEE. Source


Azumi Y.,Nihon System Sekkei Inc. | Murakami M.,Kindai University
Journal of Structural and Construction Engineering | Year: 2016

Most formulae to calculate the shear stiffness of a sheathed shear wall are derived under the assumption of rigid frames connected with pins. But the flexural and axial deformation of vertical studs affects the shear stiffness of a shear wall. A few other conventional formulae to calculate the shear stiffness of a sheathed shear wall consider only the effect of the flexural deformation of vertical studs. Since there is no calculation method of the shear stiffness considering the effect of the flexural and the axial deformation of vertical studs, numerical analyses are conducted. In this paper, we derive simplified formulae based on the principle of minimum potential energy. The formulae are verified by numerical static elasticity analyses. Source


Hayakawa T.,Kindai University | Hayakawa T.,Japan National Institute of Health Sciences | Hayakawa T.,Osaka University
Biologicals | Year: 2015

Essential scientific elements for early product development, evaluation, and control of human cell-based products for cell therapy are addressed in a comprehensive and unifying way. Among them, donor issues (autologous and allogeneic), testing of raw materials, cell banking and cell substrate characterization, testing for adventitious agents (viral safety), and product sterility are very much related to each other. A significant amount of expertise exists in these areas both for traditional biologicals as well as for biotechnology products. Thus, core principles/concepts as well as the testing methodologies are already well defined. Other critical technical elements that are essential but need further discussion in terms of relevant regulatory requirements and testing methods are touched upon very briefly and followed by a detailed discussion (elsewhere). © 2015. Source


Handa H.,Kindai University
International Journal of Advancements in Computing Technology | Year: 2012

In this paper, we constitute 1-ply Othello agents by using Evolutionary Algorithms. By using Temporal learning method, firstly, we introduce Memetic Algorithm, i.e., hybridization of EA with local search method. Secondly, we examine Evolutionary Multi-Objective Optimization to improve the performance of EAs. In addition, we propose two kinds of modified Temporal Difference Learning methods for EMO. Experimental results show the effectiveness of the proposed method. Source


Kitayama K.,Hiroshima University | Kobayashi T.,Hiroshima University | Uemori T.,Kindai University | Yoshida F.,Hiroshima University
Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan | Year: 2011

Elasto-plasticity behavior of a IF steel sheet was investigated by performing uniaxial tension tests in three directions (0°, 45° and 90, to the rolling direction of the sheet), in-plane cyclic tension-compression test and bi-axial tension test. The sheet has strong planar r-value anisotropy (r0=2.15, r45=2.12 and r90=2.89) but very weak flow stress directionality. Equi-biaxial flow stress is as large as 1.23 times of the uniaxial flow stress. These elasto-plasticity deformation characteristics, as well as the Bauschinger effect and cyclic hardening behavior, are well described by a macro-plasticity model (Yoshida-Uemori model incorpolating with the 4th-order anisotropic yield function). Further, the simulation of elasto-plasticity stress-strain responses of the sheet were conducted by two types of crystal plasticity models, i.e., Taylor hypothesis based model and CPFEM, using the crystallographic orientation distribution data measured by neutron diffraction method. The models capture most of the above-mentioned deformation characteristics qualitatively, but the predicted anisotropy and the Bauschinger effect are weaker than those of the real material. The CPFEM gives more realistic results than the Taylor model. Source

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