Kanazawa-shi, Japan
Kanazawa-shi, Japan

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Inoue K.,Kanazawa Technical College | Kaneko M.,Japan Advanced Institute of Science and Technology
Midwest Symposium on Circuits and Systems | Year: 2015

With the growing scale of integration, it is demand for next-generation VLSI design to consider not only the number of resources, but also the bitwidths of them. Removing wasted bits of resources, the area and power costs are optimized rather than conventional design. This paper shows that intentional clock skew (useful clock skew) is effective to improve the performance of bitwidth-aware circuits, and formulates a novel problem of clock skew scheduling to minimize the clock period during register allocation and binding under the total bitwidth constraint. A mixed integer linear programming-based approach is presented to formally draw up the problem. Experimental results show that the proposed approach can reduce 9.4% clock period on average over the conventional design. © 2015 IEEE.


Songer R.W.,Kanazawa Technical College | Miyata K.,Japan Advanced Institute of Science and Technology
International Journal of Engineering Education | Year: 2016

Typical applications of gamification in education use either game mechanics to encourage positive engagement behaviors or full games to deliver educational content; however, both approaches raise some concerns. Game mechanics can distract from the intrinsic enjoyment of activities while full games construct learning contexts that may be significantly different from the real-world contexts of the targeted subject matter. This paper aims to highlight issues of behavioral conditioning and knowledge transfer in instructional design that uses gamification by examining foundational theories and recent studies. We propose a design approach called "gameful learning" that focuses on integrating intrinsically rewarding, playful aspects of game-like experiences into authentic learning activities. Authentic learning activities relate real-world contexts to classroom learning while the desired motivational outcomes of playful experiences are shown to be more fulfilling than extrinsic rewards.Wethen investigate playful experiences in a game-based learning activity integrated into a business English class at a Japanese technical college. In the activity, mixed teams of Japanese and Singaporean students (N = 47) competed at negotiating for resources required to establish businesses within the specified time limits. The results of our analysis show the experiences of arousal, contest, and discovery were the most prevalent in the game. Levels of arousal and thrill showed the strongest positive correlations to enjoyment, implying the students had approached the activity with a playful attitude rather than a serious one. The Japanese students' reported levels of engagement in the contest and experiences of achievement correlated strongly with their sense of challenge. These results and their implications for the development of a playful affordances model as a tool for the design of gamification and gamebased learning activities are the focus of this paper. © 2016 TEMPUS Publications.


Sakakura T.,Kanazawa Technical College | Hayashi A.,Kanazawa Institute of Technology
ISITA/ISSSTA 2010 - 2010 International Symposium on Information Theory and Its Applications | Year: 2010

We propose a simple steganalytic scheme for least significant bit embedding. The new method is based on statistics of image difference signal, and enables us to estimate the relative message length with such a high accuracy as Sample Pairs Analysis. Experimental results show that our method detects a stego Work which is missed by Sample Pairs Analysis, and vice versa. This implies that a combination of several steganalytic techniques should be used to reduce the missing rate. We believe our method is one of useful tools for LSB steganalysis. © 2010 IEEE.


Takemata K.,Kanazawa Institute of Technology | Nakamura S.,Kanazawa Institute of Technology | Minamide A.,Kanazawa Technical College | Kawata Y.,Kanazawa Institute of Technology
International Journal of Advancements in Computing Technology | Year: 2011

This study is related to the development of teaching materials for energy environmental education.It is focused on the thermal environment issues of the earth. In order to understand the thermal environment of the earth, it is necessary to learn regional thermal environments in local area first. We have developed an educational program for grasping the current situation of land coverage in each region while considering a community bus, which is one of public transportation means. In addition, we have produced teaching contents for stirring students' interests in the thermal environment, based on the air temperature observation data.


Sakakura T.,Kanazawa Technical College | Hayashi A.,Kanazawa Institute of Technology
2012 International Symposium on Information Theory and Its Applications, ISITA 2012 | Year: 2012

We evaluate performance characteristics of LSB steganalysis based on statistics of image difference signal using a discretized version of two dimensional Gaussian distribution. We numerically obtain a joint probability and a distribution of difference signal for our probabilistic model. Furthermore, a variation of difference signal by zero embedding and that by random embedding are computed. Many results of our computer simulation show a limit of estimation ability. From the point of view of the mean squared error, we argue that our method is superior to sample pairs analysis and RS steganalysis. The miss rate and false alarm rate for our steganalysis are plotted. © 2012 IEICE Institute of Electronics Informati.


Imazawa A.,Kanazawa Technical College | Naoe N.,Kanazawa Technical College
2013 IEEE 5th International Conference on Engineering Education: Aligning Engineering Education with Industrial Needs for Nation Development, ICEED 2013 | Year: 2014

In this research, the authors examined the value of air temperature data of big cities as data-mining introduction teaching material for schoolchildren and young students. The data examined in this research was the air temperature data of all of the 47 prefectural capitals in Japan. The results of the research showed that we can clearly see statistical patterns in the data using diagrams and graphs familiar to average people. It was also found that we can experience, through the analysis of air temperature data, that finding patterns in data leads us to additional findings. Moreover, we found that we can expect students to acquire important ideas of statistics through the analysis. © 2013 IEEE.


Naoe N.,Kanazawa Technical College | Imazawa A.,Kanazawa Technical College
5th International Conference on Clean Electrical Power: Renewable Energy Resources Impact, ICCEP 2015 | Year: 2015

This study presents the micro-hydroelectric power generation system. The micro-hydroelectric power generation system can be utilized for generating small amount of energy within towns. The generator system requires to be a robust, simple configuration and a stable output. The authors developed the reverse rotation twin rotor generator with the hydraulic energy test apparatus. In first step the study is carried out to make the twin water wheel prototype test apparatus using a small size facility. The paper describes the basic characteristics of a generator system with twin water wheel prototype test apparatus using a small size facility. The maximum power of the prototype test apparatus was found to be 52W. © 2015 IEEE.


Naoe N.,Kanazawa Technical College | Imazawa A.,Kanazawa Technical College
EEEIC 2016 - International Conference on Environment and Electrical Engineering | Year: 2016

In this paper the coreless tubular linear generator is analyzed by using finite element methods (FEM). The magnetic field distribution of the analysis model is shown with 2D and 3D FEMs. The prototype linear machine with the core of a polyacetal material is built. The EMF of the coreless tubular linear generator is verified by experiment results from the prototype linear machine. The basic low speed operations characteristics are carried out using the prototype linear machine. © 2016 IEEE.


Fujisawa T.,Kanazawa Technical College | Bailey M.,Kanazawa Technical College
2015 IEEE 7th International Conference on Engineering Education, ICEED 2015 | Year: 2015

In a class focused on practical programming, it is not uncommon to find a large difference in student ability levels. When such a gap in proficiency exists, students with a high level of understanding tend to find the class too simple and as a result their motivation decreases. Up until this point, we have been responding to students who have a lower level of understanding by providing them with supplementary work in order to help them reach a core competency level. On the other hand, there has not been any corresponding action on behalf of students who already have a high level of achievement. We have created a special environment with the aim of enabling students who already have a high level of technical ability to progress with self-directed free study in the areas of programming and networking. This free space is called the Sandbox. The results thus far include daily use by a number of students and the voluntary implementation of student-run programming contests. We have observed an increase in the motivation level of the students who are participating in these activities. © 2015 IEEE.


Akiyama A.,Kanazawa Technical College | Kumagai H.,Tamagawa Seiki Co.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2015

We have studied the object silhouettes and surface direction through the stereo matching image processing to recognize the position, size and surface direction of the object. For this study we construct the pixel number change distribution of the HSI color component level, the binary component level image by the standard deviation threshold, the 4 directional pixels connectivity filter, the surface elements correspondence by the stereo matching and the projection rule relation. We note that the HSI color component level change tendency of the object image near the focus position is more stable than the HSI color component level change tendency of the object image over the unfocused range. We use the HSI color component level images near the fine focused position to extract the object silhouette. We extract the object silhouette properly. We find the surface direction of the object by the pixel numbers of the correspondence surface areas and the projection cosine rule after the stereo matching image processing by the characteristic areas and the synthesized colors. The epipolar geometry is used in this study because a pair of imager is arranged on the same epipolar plane. The surface direction detection results in the proper angle calculation. The construction of the object silhouettes and the surface direction detection of the object are realized. © 2015 SPIE.

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