Nagoya Institute Research Articles

Understanding of Status of Practice and Fulfillment in the Graduation Work by Introduction of the Recording Notebook

The Department of Electrical and Electronic Engineering, Nagoya Institute of Technology introduced the recording notebook in the graduation work to understand status of practice and fulfillment of students. Using the recording notebook, the students record practice time and evaluate monthly self-fulfillment. Teachers can guide students based on the record and the self-fulfillment. The system using the recording notebook will help quality assurance of education in the graduation work.

Discussion on Activities of Enlightenment for High School Students Based on Survey

The School of Engineering of Osaka University and the Department of electrical and electronic engineering, Nagoya Institute of Technology, coordinated and conducted survey for university students, students and teachers of high schools in order to realize effective activities of enlightenment for high school students. From the results of survey, it was suggested that the high-school teachers the most influential to high-school students. One of the promising contents in open lecture for high school students was the recent advanced technology allowing for the content of the science subjects in high school.

Medical Image Laboratory, Field of Multimedia and Human Computer Interaction, Department of Computer Science and Engineering, Nagoya Institute of Technology

Medical Image Laboratory, Field of Multimedia and Human Computer Interaction, Department of Computer Science and Engineering, Nagoya Institute of Technology

Investigation of Time Series Change and Difference between Universities in Motivation for University Entrance of Students Studying Electrical and Electronic Engineering

The Department of Electrical and Electronic Engineering followed the motivation for university entrance of the first-year students for the academic years 2005-2010, Nagoya Institute of Technology (NIT). In the present study, we analyzed that survey and compared the results with those in the Faculty of Engineering, Osaka University (OU) where similar survey has been conducted in the academic year 2004. The results show that interest in the acquisition of knowledge and skills is high in OU and NIT at all the academic years. On the other hand, in OU and NIT at the academic year 2005, interest in an employment rate is not a major factor, and then this interest increases annually in NIT to the academic year 2010.

Abstracts of Nippon Dojo-Hiryogaku Zasshi

Abstracts of Nippon Dojo-Hiryogaku Zasshi

Intercomparison of whole-body averaged SAR in European and Japanese voxel phantoms

This paper provides an intercomparison of the HPA male and female models, NORMAN and NAOMI with the National Institute of Information and Communications Technology (NICT) male and female models, TARO and HANAKO. The calculations of the whole-body SAR in these four phantoms were performed at the HPA, at NICT and at the Nagoya Institute of Technology (NIT). These were for a plane wave with a vertically aligned electric field incident upon the front of the body from 30 MHz to 3 GHz for isolated conditions. As well as investigating the general differences through this frequency range, particular emphasis was placed on the assumptions of how dielectric properties are assigned to tissues (particularly skin and fat) and the consequence of using different algorithms for calculating SAR at the higher frequencies.

The Nitech-NAIST HMM-Based Speech Synthesis System for the Blizzard Challenge 2006

We describe a statistical parametric speech synthesis system developed by a joint group from the Nagoya Institute of Technology (Nitech) and the Nara Institute of Science and Technology (NAIST) for the annual open evaluation of text-to-speech synthesis systems named Blizzard Challenge 2006. To improve our 2005 system (Nitech-HTS 2005), we investigated new features such as mel-generalized cepstrum-based line spectral pairs (MGC-LSPs), maximum likelihood linear transform (MLLT), and a full covariance global variance (GV) probability density function (pdf). A combination of mel-cepstral coefficients, MLLT, and full covariance GV pdf scored highest in subjective listening tests, and the 2006 system performed significantly better than the 2005 system. The Blizzard Challenge 2006 evaluations show that Nitech-NAIST-HTS 2006 is competitive even when working with relatively large speech databases.

教養教育としての技術革新学

The object of this paper is to provide some suggestions about the technological innovation science temporal lecture in Nagoya Institute of Technology in 2005. It was a unique lecture in terms of the following 3 points : 1) The lecture was not designed for graduated students of MOT course but for bachelor students in engineering. 2) The lecture was based on the case studies from history of Japanese industrial technology. 3) The lecture was focused on studying the vested or basic technology caused the technological innovation. It was shown that the lecture was useful for the students as an introduction of MOT and it also promoted a better understanding of manufacturing basic knowledge and engineers′ ethics.

FE Modeling of Tension Pin-end Connections

Pin-end connections have been widely used in tension structures. Accurate design methods are required to ensure these connections are safe and economic. The modeling of a given connection type is normally based on the determination of the connection behavior using experimental or numerical methods. This paper presents some finite-element (FE) modeling principles to analyze pin-end connections. The MSCMarc finite-element package is used to simulate the experimental behavior observed in tests conducted at the Nagoya Institute of Technology, Japan. The parameters varied in both the experiments and MSCMarc simulations are the inner radius of pin-block and gusset-block, the radius and the position of pin. The results obtained from the FE analyses are evaluated and the numerically predicted ultimate strengths are also compared with experiment data. It is shown that the proposed modeling principles are effective and efficient.

3.1 名古屋工業大学における技術者倫理教育([3]大学における技術者倫理教育,<連載講座>技術者倫理教育の最前線)

3.1 名古屋工業大学における技術者倫理教育([3]大学における技術者倫理教育,<連載講座>技術者倫理教育の最前線)

Correlation Between Maximum Temperature Increase and Peak SAR with Different Average Schemes and Masses

This paper investigates the correlation between maximum temperature increases and peak spatial-average specific absorption rates (SARs), calculated by different average schemes and masses. For evaluating the effect of mass on the correlation properly, a three-dimensional Green's function is presented. From our computational investigation, no best average mass for peak spatial-average SAR exist from the aspect of the correlation with maximum temperature increase. This is attributed to the frequency dependent penetration depth of EM waves. Maximum temperature increase in the head including the pinna is reasonably correlated with peak spatial-average SARs for most average schemes and masses considered in this paper. Maximum temperature increase in the head only (excluding the pinna) is reasonably correlated with peak 10-g SARs for the average schemes considered in this paper. The rationale for this result is explained using the Green's function. The point to be stressed here is that the slope correlating them is largely dependent on the average scheme and mass. Additionally, good agreement is observed in the slopes obtained by using two head models, which have been developed at Osaka University and Nagoya Institute of Technology. However, weak correlation is observed for the brain, which is caused by the difference of the positions where peak SAR and maximum temperature increase appear. The 95th percentile values of the slope correlating maximum temperature increases in the head or brain and peak spatial-average SAR are quantified for different average schemes and masses

FDTD-Derived Correlation of Maximum Temperature Increase and Peak SAR in Child and Adult Head Models Due to Dipole Antenna

This paper investigates the correlation between the peak specific absorption rate (SAR) and the maximum temperature increase in head models of adults and children due to a dipole antenna. Much attention is paid to the effect of variation of electrical and thermal constants on the correlation for the child models, since these constants of child tissues are different from those of adult tissues. For investigating these correlations thoroughly, a total of 1400 situations are considered for the following six models: 3-year-old child, 7-year-old child, and adult models developed at the Nagoya Institute of Technology and the Osaka the University. The numerical results are analyzed on the basis of statistics. We find that the maximum temperature increases in the head can be estimated linearly in terms of peak SAR averaged over 1- or 10-g of tissue. In particular, no clear difference is observed between the adult and child models in terms of the slopes correlating the maximum temperature increase with the peak SAR. Also, the effect of electrical and thermal constants of tissue on these correlation is found to be marginal. Further, we discuss possible maximum temperature increases in the head and brain for SAR limits prescribed in safety guidelines. For the adult model developed at the Osaka Univ., these are found to be 0.26/spl deg/C and 0.10/spl deg/C at the SAR value of 1.6 W/kg for 1-g cubic tissue and 0.59/spl deg/C and 0.21/spl deg/C at the SAR value of 2.0 W/kg for 10-g cubic tissue. Similarly, for the 3-year-old child model at Osaka Univ., these are 0.23/spl deg/C and 0.11/spl deg/C for the value of 1-g SAR and 0.53/spl deg/C and 0.20/spl deg/C for the value of 10-g SAR.

Three-component distillation using structured packings: Performance evaluation and model validation

This paper presents results of continuous feed and total reflux distillation experiments carried out with a common type and size structured packing using two- and three-component mixtures of common alcohols and water. With the binary mixture, the packing performed slightly better than with a three-component mixture. Surprisingly, the continuous operation performance appeared slightly better than in case of the total reflux operation. Delft model predictions of the overall mass transfer efficiency appeared to be conservative enough around the operating/design point load of the packing in question. The composition profiles measured with the three-component mixture were used to validate the rate-based (non-equilibrium) model developed at the Nagoya Institute of Technology, which appeared to be highly accurate, but also sensitive to the choice of the predictive method for the interfacial area.

Special Issue on Selected Papers from ROBOMEC'04 (Part 2)

The 2004 JSME Conference on Robotics and Mechatronics (ROBOMEC'04) was held at Meijo University in Nagoya, Japan, on June 18-20, 2004, sponsored by the Robotics and Mechatronics Division of the Japan Society of Mechanical Engineers. Prof. Takeo Oomichi of Meijo University served as general chair and Prof. Sano of the Nagoya Institute of Technology as program chair. The conference, whose theme was ""Super Fabrication for a Safe, Secure Environment,"" was to help establish new industries using advanced robotics and mechatronics technologies. Organized sessions numbered 67 and papers 813 – a record for the conference. The program committee selected 91 outstanding presentations – some 10% of the total – for the special issues. Out of submitted 43 papers Part 2 (Vol.17, No.3) presents 16 papers through the regular review process. Two papers have already been published in Vol.17, No.1, and 15 papers in Vol.17, No.2. We thank the authors for their invaluable contributions to this issue and the reviewers for their time and effort. We also thank Editor-in-Chief Makoto Kaneko of Hiroshima University for organizing this special issue.

Special Issue on Selected Papers from ROBOMEC'04 (Part 1)

The 2004 JSME Conference on Robotics and Mechatronics (ROBOMEC'04) was held at Meijo University in Nagoya, Japan, on June 18-20, 2004, sponsored by the Robotics and Mechatronics Division of the Japan Society of Mechanical Engineers. Prof. Takeo Oomichi of Meijo University served as general chair and Prof. Sano of the Nagoya Institute of Technology as program chair. The conference, whose theme was ""Super Fabrication for a Safe, Secure Environment,"" was to help establish new industries using advanced robotics and mechatronics technologies. Organized sessions numbered 67 and papers 813 – a record for the conference. The program committee selected 91 outstanding presentations – some 10% of the total – for the special issues. Out of submitted 43 papers Part 1 (Vol.17, No.2) presents 15 papers through the regular review process. Two papers have already been published in Vol.17, No.1. We thank the authors for their invaluable contributions to this issue and the reviewers for their time and effort. We also thank Editor-in-Chief Makoto Kaneko of Hiroshima University for organizing this special issue.

Development of new materials for solar cells in Nagoya Institute of Technology

Solar cells with high efficiency and low price have long been desired, however, the commercially available solar cells are still expensive and the efficiencies of them are not high enough yet. A tandem solar cell was fabricated to develop a high-efficiency solar cell, and amorphous carbon solar cells were fabricated to develop a low-price solar cell.An AlGaAs/Si tandem solar cell was successfully fabricated by heteroepitaxial growth of AlGaAs on Si substrate. At first, a p–n junction was formed in Si substrate by the impurity diffusion method. Then, an AlGaAs p–n junction was grown by MOCVD. Since the AlGaAs p–n junction has a graded band gap emitter, the photo-excited minority carriers can be collected efficiently. The energy conversion efficiency of AlGaAs/Si tandem solar cell was 21.4% (AM0) in spite of large lattice mismatch and difference in thermal expansion coefficients between AlGaAs and Si.Solar cells were fabricated by using amorphous carbon films deposited by Ion Beam Sputtering and Pulse Laser Deposition(PLD). The highest efficiency of 1.82% (AM0) was attained with a-C(IBS)/p-C(pyrolysis)/p-Si structure. Solar cells using a-C:H were also fabricated by PLD and Plasma CVD, and the efficiencies of them were 2.1% (AM1.5) and 0.04% (AM0), respectively.Other research activities on solar cells in Nagoya Institute of Technology are briefly mentioned.

ポリペプチドから生まれる機能性材料 木下隆利・名古屋工業大学大学院教授に聞く

ポリペプチドから生まれる機能性材料 木下隆利・名古屋工業大学大学院教授に聞く

テクノビジネススクールとしての産業戦略工学専攻の試み

In this paper, the educational practice of the master course of techno-business administration (MTA) at Nagoya Institute of Technology (NIT) is introduced to propose the practical engineering education at a postgraduate level. MTA was established in 2003 on the basis of hundred years' engineering education at NIT. An objective of this school is to educate engineers to be leaders, entrepreneurs and managers. The practical tuition covers the fields in Industrial Management of Technologies, Core-Technologies and Laboratories work. Among these, the most focused and effective subject is “Case-Study,” in which students are encouraged to simulate business settings using elemental technologies developed by teaching staff. Discussions are made to apply the technology to match the possible markets. This type of experiences certainly motivates the students work and is clearly reflected in their research paper.

公立産業技術博物館の嚆矢としての市立名古屋科学館の設立

The aim of this study is to provide some suggestion on the establishment of Nagoya Municipal Science Museum (NMSM). The result of the analysis are as follows: 1)NMSM was established by Nagoya City as a first public museum of science and industry in Japan after the World War II, being introduced the concept of German Museum in Munich. 2) Dr. Shimizu, the president of Nagoya Institute of Technology and the former director of Education Ministry, designed the exhibition of NMSM to encourage the practical science and technology education for visitors. His plan was supported by both local private sectors and universities.

Special Issue on Selected Papers FSS2002

Research in fuzzy system theory and its application has progressed rapidly in Japan since the first Fuzzy System Symposium (FSS) in 1985. This national meeting has been held annually for reading research papers by fuzzy system theory researchers. The Japan Society for fuzzy system theory and Systems (SOFT), set up in 1989, was made the SOFT's official annual meeting. The 18th FSS (FSS 2002), held at the Nagoya Institute of Technology, Nagoya, Japan, from August 28 to 30, attracted over 320 participants and was the site of 197 lectures. At this FSS,Kaoru Hirota, President of the Society, declared, "It is necessary for researchers in fuzzy system theory in Japan to present results of their study in English for readers overseas. I am happy to announce that our society is to publish a journal of collected papers in English 3 times a year, in addition to the society journal in Japanese, entitled the Journal of Advanced Computational Intelligence and Intelligent Informatics (JACIII).' " The initial result is this special February 2002 issue, which contains papers from preparatory papers read at FSS2002. Editing of this special issue was entrusted to the executive committee of FS2002, with the symposium chair acting as the guest editor. Other members of the editing committee are Hitoshi Yano, Nagoya City University; Moritoshi Sasaki, Aichi University of Education; Yahachiro Tsukamoto, Meijo University; Takeshi Furuhashi, Mie University; Yasuhisa Hasegawa, Nagoya University; Miho Ohsaki, Shizuoka University; Hiroto Mizunuma, Meijyo University; Tomohiro Yoshikawa, Mie University; and Tsuyoshi Nakamura, Nagoya Institute of Technology. We thank the committee members and referees for paper selection , and Kumiko Satoh of Fuji Technology Press Ltd. for clerical work associated with the preparation of the journal. Most papers have been rewritten by the authors for this publication. Two are written in English and 7 in Japanese and translated into English after selection. At least 2 referees read each paper to select the final 9. Subjects include fuzzy data base, learning, fuzzy clustering, application for marketing, industrial application, psychological application, and fuzzy logic. All research is original and represents the current level and trends in fuzzy system theory research in Japan. Unfortunately, circumstances forced us to select papers from among 4-page preparatory papers despite the possibilities in 2-page papers. If, however, the FSS special issues of JACIII every year, up-to-date papers prepared by Japanese researchers will be available for review by overseas readers with a possible significant contribution to the research of fuzzy system theory worldwide. This will be a good opportunity for Japanese researchers to make their results known overseas, making participation in FSS even more meaningful. In January 2003, the official name of SOFT was changed to the Japan Society for fuzzy system theory and Intelligent Informatics. We sincerely hope that JACIII will become a useful tool for presenting the latest fuzzy system theory research in Japan to the world, and, in turn, support indirectly the society's development.