Research Reports of National Institute of Technology (KOSEN), Kumamoto College
Online ISSN : 2189-8553
Print ISSN : 1884-6734
ISSN-L : 1884-6734
Volume 9
Showing 1-16 articles out of 16 articles from the selected issue
  • A Case of Disaster Occurrence Countermeasures
    [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    2018 Volume 9 Pages 1-6
    Published: 2018
    Released: January 26, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    In April 2016, an earthquake with seismic intensity of 7 twice attacked the Kumamoto district, leaving a large scar on the Kumamoto area. There were no human injuries at Kumamoto KOSEN. College and there were no major damage to the building at the dormitory, but the residents were forced to evacuate without entering the dorm for seven days after the earthquake occurred. More than 100 cracks were confirmed on indoor and outdoor walls and living rooms. Dormitory students were obliged to evacuate life using the eighth room of the second floor of the school building for seven days, but the residence students survived this difficulty with disciplined actions including evacuation and evacuation lives, mainly for officers of the dormitories, the situation of the area, and the state of the residence, and returned to life to sleep in the dorm on the eighth day. School students who came to school on May 8 also entered the dormitory and the dormitory life as usual resumed. In emergency, we realized that the flexible choice of each position and communication from day to day are more important than anything else.
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  • [in Japanese], [in Japanese]
    2018 Volume 9 Pages 7-12
    Published: 2018
    Released: January 26, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Importance of educational practices has been increased to enhance students' motivation to learning. It is necessary to understand the students’ minds to learning in class. From the point of view, class questionnaires in engineering subject, “Construction materials”, for the second-year student in the department of Architecture and Civil Engineering of Kumamoto National College of Technology were carried out to bring up voluntary minds of the students for learning. The students’ minds to learning, self assessments and sense of achievements can be evaluated from the questionnaires. It is found out from the analysis of the questionnaires that the presented activity in class is effective for improving students’ minds for learning and voluntary minds for learning are increased by making preparations for the subject.
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  • [in Japanese]
    2018 Volume 9 Pages 13-18
    Published: 2018
    Released: January 28, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    We report the contents of our Career Interview, one of the methods of active learning, and the results of questionnaire to the students. The students who had the interview show remarkable changes in the consciousness of their own careers. Also, the interview develops the students’ ability in communication effectively. Their ability of making presentations, however, varies greatly between individuals. We mention the necessity of giving the students more opportunities of making presentations in public.
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  • [in Japanese]
    2018 Volume 9 Pages 19-24
    Published: 2018
    Released: January 28, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    In order to design Japanese classes from a viewpoint of active learning and practice them efficiently, this paper introduces some methods such as role-playing, interview, and letter writing volunteer. The results, effectiveness and problems of these methods are considered at the conclusion.
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  • [in Japanese], [in Japanese]
    2018 Volume 9 Pages 25-32
    Published: 2018
    Released: January 29, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Growing agricultural plants with liquid fertilizer is called hydroponic culture. The hydroponic system is widely used because cultivation conditions can be controlled much easier than soil cultivation. For example, oxygen concentration control is difficult with soil cultivation, but it can be easily controlled with the hydroponic system. Here we generated microbubble in the liquid fertilizer and maintained saturated oxygen concentration over few months and we then evaluated its effect on the plant growth measured as biomass amount. The microbubble was provided by commercially available home use microbubble generator. We focused on 4 crops (tomato, broccoli, cress, rush) that are cultivating around Kumamoto-prefecture, especially Kumamoto is known as the top share producer of rush, producing over 90% of the national production volume. There was no noticeable difference in the biomass amount between those plants cultured hydroponically with microbubble-aided and non-microbubble-aided water. However, it has turned out that there is a tendency to prompt growth in plants grown by soil cultivation with irrigation of microbubble-aided water. In addition,in the case of rush there was a significant difference in the stalk and root growth between the cultivation with microbubble-aided and non-microbubble-aided water.
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  • [in Japanese], [in Japanese]
    2018 Volume 9 Pages 33-39
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    The purposes of this article are to measure two traditional Japanese houses in Hikawa town, Kumamoto and to make the drawings in order to record. They were damaged by the 2016 Kumamoto earthquake, and at present, they were dismantled at public expense. We analyzed the result of the investigation and clarified the characteristics. The Ito family house was a good example of Kudo-zukuri in the Edo era. M family house was interpreted Kudo-zukuri in the Meiji era. The latter had the characteristics of the house of an important family who had employed tenants.
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  • [in Japanese], [in Japanese]
    2018 Volume 9 Pages 40-47
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    The purposes of this article are to measure two Machiyas built in the Edo era in Yatsushiro City, Kumamoto and to make the drawings in order to record. They were damaged by the 2016 Kumamoto earthquake. K family house was dismantled at public expense. N family house is going to be dismantled. We analyzed the result of the investigation and clarified the characteristics. In both Machiyas there are characteristics based on each local character and each family business.
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  • [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    2018 Volume 9 Pages 48-54
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Dermal papilla cells are located in the dermal papilla at the base of hair follicles. When dermal papilla cells form “spheroid” in vitro, they have many similarities to intact dermal papilla cell in vivo. In this study, we developed a culture substrate that can produced of human dermal papilla spheroids with uniform size using micromolding technique. We fabricated agarose gel culture substrate with microwell structure using micromolding technique. Micromold was fabricated by using a machining center in our Technical Practice Center. We designed culture substrate with microwell diameter and depth of 500 μm. Human dermal papilla cells formed monolayer on general culture dish, in contrast they formed spheroid on agarose gel culture substrate. A single spheroid was formed in each microwell under round bottom microwell (Round-well) and spheroid size was constant during culture periods. This cell culture substrate is a promising culture substrate for regenerative medicine research, pharmacological and toxicological studies, and fundamental studies in dermatology.
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  • [in Japanese], [in Japanese]
    2018 Volume 9 Pages 55-60
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    People in Japan felt more anxious about radiation than before after huge amount of radioactive material leaked out on Great East Japan Earthquake in 2011. Teaching materials to understand properly the characteristics of radiation are developed in this research. Image processing technology is used to make more attractive for school students. Three teaching materials were developed. The first and second ones are programs, respectively, for understanding the permeability of radiation and a gaming type by using AR(Augmented Reality) technique. The third one is a program to count the number of flight paths of radiation in a cloud chamber by using OpenCV. These programs need to be improved more for the use in teaching and training in junior high and elementary schools.
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  • [in Japanese], [in Japanese], [in Japanese]
    2018 Volume 9 Pages 61-66
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Information leakage causes serious damage such as loss of trust and payment reparation for the organization. Therefore, on disposing personal computers and/or electronic recording media, a method that does not cause information leakage from discarded electronic recording media is required in any organization. First, we looked back on transition of media disposal methods at National Institute of Technology, Kumamoto College, Yatsushiro Campus. Second, we enumerated the problems in disposal of electronic media and electronic devices in recent years. Based on that, we formulated a new disposal procedure for electronic recording media and electronic devices in March 2015. We introduced initiatives and some practical examples according to this disposal procedure in our campus. This disposal procedure includes not only personal computers and HDD but also tablet terminals and solid state disks (SSD). So, we are informing the disposal method to our faculty and staff upon request. However, electronic devices are evolving day by day. It means that it is necessary to review our methods repeatedly upon our PDCA cycle.
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  • [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    2018 Volume 9 Pages 67-74
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    We have studied about multidimensional data analysis, and the related themes with this have been given to our students in their graduation research. Although the higher-order singular value decomposition (HOSVD) method is often used to treat multidimensional data, such as many big data processing problem, it is difficult for the students to understand the fundamental principle of it. In order to improve this situation, as our previous work, we developed an understanding support system of HOSVD by visualizing its calculation process. This time, we tried to give three-dimensional (3-D) puzzles to the students to solve by using HOSVD and to let them study that principle with interest. We describe our trial in this paper.
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  • [in Japanese], [in Japanese], [in Japanese]
    2018 Volume 9 Pages 75-82
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Download PDF (803K)
  • [in Japanese], [in Japanese], [in Japanese]
    2018 Volume 9 Pages 83-90
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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  • [in Japanese]
    2018 Volume 9 Pages 91-99
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    We introduce the componentwise m - full property for a pair of graded modules, which is stronger than the m - full property, and give criteria for checking whether a pair of graded modules has the componentwise m - full property or not.
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  • [in Japanese]
    2018 Volume 9 Pages 100-108
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    We introduce the stongly m - full property for a pair of graded modules, which is stronger than the m - full property but weaker than the componentwise m - full property, and give criteria for strong m - fullness by means of strongly m - full closure. One more property for a pair of graded modules : the m - adic m - fullness is introduced. Using strongly m - full closure , we show that m - adic m - fullness and componentwise m - fullness are equivalent.
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  • [in Japanese], [in Japanese]
    2018 Volume 9 Pages 109-112
    Published: 2018
    Released: January 30, 2021
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    In this paper, the algorithm and C source code to obtain the center of gravity of the polygonal plate are shown. The executable can be work by the vertex data, and it is useful to make teaching materials of physics.
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