Doi T.,Ashikaga Institute of Technology
IEEE Transactions on Magnetics | Year: 2013
This paper proposes a new quantum cellular automaton (quantum CA) for simulating macroscopic electromagnetic fields. The final target is to simulate the macroscopic electromagnetic fields on a quantum computer. In the proposal approach, Maxwell's historical model, which was explained the nature of electromagnetic fields in 1861, has been modified for a quantum CA model to simulate the electromagnetic fields. Then, a state transition rule for CA is determined by a strategy based on the quantum mechanics and the quantum computation theories. One of originalities of the proposed approach is that a system using quantum gates is superstructed to simulate magneto-static fields from currents. First, a modified Maxwell model for applying to quantum CA was shown. Second, by using the quantum computation theory, a quantum gate system to simulate the magnetic fields from currents was described. Finally, the proposed approach was applied to an example of magnetostatic field simulation. © 1965-2012 IEEE.
Tobita R.,Ashikaga Institute of Technology
Communications in Computer and Information Science | Year: 2016
This study examined the effectiveness of analysis with near-infrared spectroscopy (NIRS) for English as foreign language (EFL) training, from a brain science perspective. The experiment presented in this paper analyzed the amount of blood flow in the brain while learners were training to improve their English listening skills. The experiment attempted to ascertain the preferable combinations of learners’ characteristics and teaching materials when learners are completing training in English listening. This was done by comparing the brain activities of learners from different English proficiency levels. The data suggests that the analysis, using Functional Near-Infrared Spectroscopy (fNIRS), enabled the proposition of an effective course design for EFL learners. © Springer International Publishing Switzerland 2016.
Kobayashi S.,Ashikaga Institute of Technology |
Tsurekawa S.,Kumamoto University |
Watanabe T.,Northeastern University China |
Palumbo G.,Integran Technologies Inc
Scripta Materialia | Year: 2010
Control of brittleness associated with segregation of sulfur to grain boundaries in ultrafine-grained nickel was investigated. The brittleness could be successfully improved by controlling the grain boundary microstructure. The specimens with a higher fraction of special boundaries can have higher fracture toughness even in sulfur-bearing condition. It is evident that grain boundary engineering is applicable to controlling segregation-induced embrittlement in ultrafine-grained materials. © 2009 Acta Materialia Inc.
Akiyama K.,Ashikaga Institute of Technology
IEEJ Transactions on Fundamentals and Materials | Year: 2016
Electric breakdown form of the uniform electric field air gap is the spark discharge with a single channel. However, it was proven that pre breakdown phenomenon had been generated just before spark over discharge. In this paper, the pre- discharge of the ultraviolet radiation is defined as the following ULD By applying alternative impuls voltage to the sphere gap, this study investigated discharge form and incidence of ULD, and also effect of ULD on the spark discharge form by the combined use of standstill camera and ICCD camera with the high-speed gate. As the result, In the vertical sphere gap, it was proven that the negative half wave voltage was higher than the positive half wave voltage on the incidence of ULD in upper spherical electrode. Generally the linear spark discharge is observed in uniform electric field sphere gap at atmosphere. However, there is a case in which the bent shape of spark is sometimes observed. This discharge phenomenon was observed with a high sensitive camera. It was shown that this bent shape of spark discharge was caused by ULD. © 2016 The Institute of Electrical Engineers of Japan.
Nagao K.,Ashikaga Institute of Technology
Current Opinion in Clinical Nutrition and Metabolic Care | Year: 2016
PURPOSE OF REVIEW: The concentrations of plasma-free amino acids, such as branched-chain amino acids and aromatic amino acids, are associated with visceral obesity, insulin resistance, and the future development of diabetes and cardiovascular diseases. This review discusses recent progress in the early assessment of the risk of developing diabetes and the reversal of altered plasma-free amino acids through interventions. Additionally, recent developments that have increased the utility of amino acid profiling technology are also described. RECENT FINDINGS: Plasma-free amino acid alterations in the early stage of lifestyle-related diseases are because of obesity and insulin resistance-related inflammation, and these alterations are reversed by appropriate (nutritional, drug, or surgical) interventions that improve insulin sensitivity. For clinical applications, procedures for measuring amino acids are being standardized and automated. SUMMARY: Plasma-free amino acid profiles have potential as biomarkers for both assessing diabetes risk and monitoring the effects of strategies designed to lower that risk. In addition, the methodology for measuring amino acids has been refined, with the goal of routine clinical application. Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.