RESEARCH REPORTS OF NATIONAL INSTITUTE OF TECHNOLOGY, OYAMA COLLEGE
Online ISSN : 2432-3500
Print ISSN : 0288-2825
Volume 48
Displaying 1-23 of 23 articles from this issue
  • Tetsu UENO
    2015Volume 48 Pages 1-6
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    The purpose of this paper is to survey the history of engineering ethics education in Japan for about a decade. We will find following two features as the history of engineering ethics in Japan: firstly, the engineering ethics education was introduced in Japan by the government and the industrial world; and there was no interdisciplinary cooperation for groping for how to teach it effectively, contrary to the United States case. We also propose that we should make the best use of this trial and error for the research ethics education in Japan.
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  • Hidenori NAKAGAWA
    2015Volume 48 Pages 7-16
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    This paper presents a framework for the construction of finite deformation Spectral Stochastic Finite Element Method (SSFEM) which is the expansion of the former research carried out in a range of small deformation theory. In addition, we report on the results of benchmark tests to check the effectiveness of the code made in a framework of ordinary nonlinear FEM as preparations before considering the stochastic phenomena. Furthermore, we carried out the two and three dimensional elasto-plastic bifurcation analysis conducting branch-switching procedures that are required as a fundamental research to construct finite deformation SSFEM.
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  • - Safety management in Curtin University -
    Kayoko MORISHITA
    2015Volume 48 Pages 17-20
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    This paper summarised about comparative study of safety culture between Japan and Western countries. The difference of safety culture such as explicit knowledge and tacit knowledge based on the difference of culture like as religion, society, nationality and so on. It is important to understand the difference each other.
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  • - Review of New Physical Fitness test in 2015 -
    Tomoki NAGATA
    2015Volume 48 Pages 21-27
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    The purpose of this study was to investigate the new physical fitness test in this year. The subjects were 696 students(Male; 600, Female; 96) of the National Institute of Technology, OYAMA College. Subjects were new physical fitness test of eight kinds (Grip strength, Sit up, Sitting trunk flexion, Side step, 20m Shuttle running, 50m sprint, Standing long jump, Hand-ball throw).
    As a result, Male students were significantly lower than the National Average in many events. Also, it was less events that are better than last year. However, a change significant to a female student's result was not accepted at many items. These results suggest implicate that there should be a need to increase the physical activity to improve physical fitness level.
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  • - Advice on How to Display their Abilities on a Real Stage -
    Keiko SUGIYAMA
    2015Volume 48 Pages 29-36
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    This paper is concerned with the preparative guidance on how to work on the GTEC writing section that I gave to four classes of second-grade students at my college in 2004. First, I will describe what kind of task examinees are to work on in this section and state that in the past some students could not write a sufficient number of sentences for their abilities to be appropriately evaluated, even if they had a substantial vocabulary and grammatical competence. Next, I will argue that in order for students to display their abilities in the writing section, some pieces of advice, such as guidelines for creating paragraphs, should be given to them beforehand; at the same time, I will also show how I actually gave such guidance to the students in my classes. Finally, I will compare the essays that those students wrote on the real test with the students that took the same test in the preceding year, and show that the preparative guidance had a beneficial effect on the amount that the students wrote. In addition, I will show that the guidance fortunately made a difference to the growth of students' scores.
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  • Akira OKADA
    2015Volume 48 Pages 37-40
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    This paper aims at presenting how different negative affixes have been used for producing a new word since the Middle English period. In order to investigate the frequency of occurrence of the targeted derivatives, some corpora will be of great importance. In addition to the corpora, dictionaries will be used for the definitions of the words not only in Present-day English but also in the past.
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  • Kouichi TANAKA, Satoru IZAWA, Kiyomi NANSAI, Sankei HORI
    2015Volume 48 Pages 41-46
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    The threaded screw hole is often tested using the screw gauge manually. The change of a minute torque acts on the screw gauge when the screw gauge is put in a defective screw and it rotates. In this case, the inspector who inspects the screw judges it as “defective” by the feeling of the change of the minute torque. The purpose of this study is to develop the automatic screw testing system instead of the manually testing. Concretely, this paper inspects the screw with the gauge, measures the value of the torque, and clarifies the value of the torque which leads to “defective”. Moreover, the screw testing device was developed based on those data.
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  • Satoru IZAWA
    2015Volume 48 Pages 47-50
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Mechanics of materials is a key subject in the Department of Mechanical Engineering. This paper discusses the features of the Japan, U.S. educational assessment systems, analyzing the systems of Kosen and university. We obtained syllabuses of material statics at random through the university’s homepage on the web. The study first describes the curriculum of material mechanics program and discusses total units earned. Second, we research the examinations and evaluation process. Third, the paper describes textbooks. In order to clarify the characteristic of Kosen educational program, we continuously draw a parallel between university and Kosen. We propose a new Kosen style teaching method, which is effective combination of lecture and exercise.
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  • Hisashi MASUBUCHI, Takuji KISHI
    2015Volume 48 Pages 51-59
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    The model aircrafts using ground effect are adopted as a teaching material for many handicraft classes aimed at young students. That model has no tailplane and flies on the floor surface horizontally, therefore the general flight theory of gliders can’t be applicable. In order to clarify the flight mechanism, observation of flying models by a high-speed camera, wind tunnel experiment and numerical simulation were executed. As a result, the posture angle and external fore on the model could be almost predicted as a function of the flying speed.
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  • Takashi KAWAMURA
    2015Volume 48 Pages 61-64
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    This paper is checked the element division when a notch is very small and applied Linear Notch Mechanics. The shape that I analyzed is eight kinds in central notch and outer notch. The result that a way of the element division was important to Linear Notch Mechanics. It is necessary to do distance of the element division finely to give analysis precision. Particularly, I am careful about a shape of the notch when I use FEM.
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  • Yuki NASU, Shota TSUMAKI
    2015Volume 48 Pages 65-68
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    This paper, the effect of magnetic field on fretting wear of a glass flat specimen in contact with a steel ball has been investigated by in situ observation. The test carried out using a designed piezoelectric fretting wear testing apparatus. The amplitude of the fretting test was 4μm and frequency of 5Hz.The normal load on the contact between a glass flat specimen and a steel ball was 7N. Vertical magnetic fields of 0.2 and 0.35T, created by permanent magnets, were applied to the contact point. The experimental results show that fretted annular spread under the magnetic field.
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  • Masakatsu SENDA, Tomoyuki KUROSAWA, Hiroki MIZUSHIMA
    2015Volume 48 Pages 69-75
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    This study reports on computational analyses of ghost noise and bit error rate (BER) in memory using computer-generated hologram. The sampling periodicity (ds) can bring the ghost noise both in the telecentric (T) and lensless (L) optical systems, and the noise is avoided when ds<λ (:wavelength of light) or when lights by the ds are diffracted to outside of the image region. The code periodicity (dc) brings no ghost in the T or L system, but banded brightness unevenness noise is inevitably caused by diffracted images overlapped on hologram in the L system for the codes in this study. However, the BER characteristics in the L system are confirmed to be comparable with those in the T system. The L system makes the memory system simple, so it would be useful for the holographic memory if it is robust also for other disturbances.
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  • Shin-nosuke SUZUKI, Tomoya KAWAMURA
    2015Volume 48 Pages 77-80
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Recently, multi-functional small electronic devices such as smart phones and wearable devices have been widely used. Our research team has proposed the novel communication method for those devices. The communication is using the human body as a transmission path, and electric field and ultrasonic waves transmitted information hybridly through the human body. We call this method hybrid communication. The system can be utilized high speed and high security communication by using two kinds of energy. In the previous study on the ultrasonic waves communication, we have succeeded in the linear path communication that distance is less than 5cm. In this time, we have particularly worked on change of the shape of the ultrasonic oscillator in order to expand the communication range. As a result, we have suggested the possibility of the communication between the ring-type wearable device and fingertip.
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  • Tatsuo WATANABE
    2015Volume 48 Pages 81-85
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    In this paper, several problems for using two-dimensional Voronoi Tesselation Method in chaos time series predicting, were found by this thesis. Voronoi Tesselation Method is employed as spatial split-plot design widely, and there is chaos time series predicting in one of its applicability. But Voronoi Tesselation Method of chaos time series, it's indicated to set the boundary condition that there is difficulty. The case that two-dimensional Voronoi Tesselation Method can't expect the effect so much by determinism-like chaos time series again is also indicated.
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  • Kazumichi INOUE
    2015Volume 48 Pages 87-90
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
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    In this paper, describes a system for obtaining information of a sensor in a mobile robot efficiently and flexibly. In order to realize a robot to help the farming people, the robot is required to respond to robust to environmental change. To achieve this, in the development stage, it is required to respond flexibly to the sensor arrangement and specification changes. The proposed data transmission system using the TCP/IP protocol, were constructed in practice. Furthermore, it was confirmed that the actual sensor information can be obtained.
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  • Azusa OGINOME, Ririka KAWAKUBO, Makoto UEDA
    2015Volume 48 Pages 91-95
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Many Japanese wine, sake are fermented by Kyokai sake yeasts. However, in recent years, screening of fermentative original yeasts from flowers and fruits have been attempted because the needs of unique sake requirements of non-traditional sake tastes are increased. Thus, we tried to screen the fermentative yeasts from Omoigawa cherry that is the City Flower of Oyama-city and to develop of fermented foods such as sake. A selected strain, Saccharomyces cerevisiae OPJ-1, showed high ethanol productivity almost as much as the Sake yeast kyokai No.7. The sake by Saccharomyces cerevisiae OPJ-1 brewed at a local brewery this commercial fermentation was released in April 2014.
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  • Izumi SASANUMA, Miwano YOSHIZAWA
    2015Volume 48 Pages 97-100
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Flavonoids are major active nutraceutical ingredients in citrus. The flavonoid glucosides were screened for their effect on cell proliferation of vascular endothelial cells. The glucosides of Satsuma mandarin stimulated cell proliferation and production of exogenous beta-glucosidase. The results suggest that the glucosides could have cell-proliferative activities in vascular endothelial cells, and the molecular mechanism of the proliferation might involve structural changes in the glucoside binding to its receptor.
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  • Taro ATSUMI, Shingo OHKE, Tsuyoshi DEGAWA
    2015Volume 48 Pages 101-108
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Iron oxides such as wuestite, magnetite and hematite were analyzed by a powder X-ray diffraction system consists of a Cu X-ray source and a one-dimensional semiconductor detector. In this system, a pulse height analyzer(PHA) is also useful to not only cut off continuous X-rays also reduce influence by fluorescent X-rays from the samples containing iron. By adjusting a lower energy level of the PHA, it is possible for the samples to obtain an X-ray diffraction pattern with high peak to background ratio. A semi-quantitative analysis was successfully performed for a two-phase mixture of magnetite and hematite. However the quantitative values of the two-phase mixtures containing wuestite were in no agreement with the respective target values. A correction equation derived from the quantitative results of the two-phase mixtures was of use to determine the quantity of wuestite, magnetite and hematite in the three-phase mixture.
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  • Takakuni TANAKA, Narumi YOSHIKAWA, Hitomi TANAKA, Yasuhiro KOBAYASHI
    2015Volume 48 Pages 109-112
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    The main characteristic of the activated sludge is degradation of waste water. Various bacteria form flocs in the activated sludge. These flocs must be the most suitable bacteria density for waste water treatment. It is necessary to know the state of the flocs immediately to perform processing smoothly. In this report, we tried to analyze the activated sludge flocs using Image J. Image J is an image analysis program that was created at the National Institutes of Health (open source). We present a new approach to determine volumes, related factors, and compositions of the bacteria of activated sludge flocs. As a result, Image J was proved to be effective for the analysis of the floc images. There was not the relation of Image analysis, MLSS and metabolic activity.
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  • -Planning and Verification for Improvement of the Disaster Prevention-
    Hiroko HASHIMOTO, Hyo KUSHIDA
    2015Volume 48 Pages 113-122
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    A gigantic earthquake hit the Northeast of Japan on 11 March 2011. At the disaster area, the elderly and disabled who are living in the temporary housing complexes have been living with much stress. The stress comes from the living environment which is not suitable for them. We had studied how to improve their dwelling environment and reviewed the planning of the existing temporary housing complexes. And we examined the temporary housing complex plans in Oyama city. The case study revealed the important in elements required in planning. The results are useful not only Oyama city, but also other areas.
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  • Tsuyoshi DEGAWA, Taro ATSUMI, Takakuni TANAKA
    2015Volume 48 Pages 123-128
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    Students did not have the opportunity to consider the environmental problems in the student experiments. Therefore, we paid attention to the chromate products. The chromate products was included Cr (VI), but now was not included Cr (VI) by RoHS / ELV Directive. However, inspection of containing Cr (VI) at the chromate products is necessary to export. Therefore we tried an attempt for hazardous materials education based on the RoHS/ELV Directive. Hazardous materials measurements of the chromate products are suitable education to the understanding of the environmental problems.
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  • Shingo OHKE, Taro ATSUMI, Tsuyoshi DEGAWA
    2015Volume 48 Pages 129-134
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    When performing X-ray diffractometry for small amounts of a sample, the background intensity is relatively high with respect to the intensity of the diffraction peaks. Therefore the peak-background (P/B) ratio decreases, and the analysis will generally be difficult. Because background X-rays are considered mainly due to the reflected X-rays from the sample plate, non-reflective sample plates are useful. Non-reflective sample plates, which are made from silicon, do not easily reflect X-rays. One-dimensional semiconductor detectors are also helpful, which can considerably increase X-ray intensity as a result of integration by a number of semiconductor elements. In this paper, we analyze three various samples of cosmetics using a non-reflective sample plate together with a one-dimensional semiconductor detector. We have diffraction patterns of high P/B ratios, and, as a result, succeed in identifying major parts of inorganic components.
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  • - The Relationship between Man and Machines -
    Tadashi UEKI
    2015Volume 48 Pages 135-138
    Published: December 21, 2015
    Released on J-STAGE: July 26, 2019
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    In 2014, the first time after Regional Collaboration and Cooperative Research Center was established in 1981, 6 latest models of machines have been delivered to the center, and the center has become active for joint researches with local companies. Even if the facility and the machines become latest, in the point of view of relationship between man and machines, there is no guarantee to say that we never cause any mistakes, as long as we are human. To minimize the errors, it is necessary to take measures to verify the errors and estimate the future happening.
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