RESEARCH REPORTS OF NATIONAL INSTITUTE OF TECHNOLOGY, OYAMA COLLEGE
Online ISSN : 2432-3500
Print ISSN : 0288-2825
Volume 44
Showing 1-29 articles out of 29 articles from the selected issue
  • Writing
    Tsugio INOUE
    2011 Volume 44 Pages 1-10
    Published: December 22, 2011
    Released: September 20, 2020
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
    This paper considers "writing" in Japanese language learning.
    A new study course focuses on the system of learning through elementary and junior high schools as well as high schools. It requires the acquisition of writing skills by the setting the problem, coverage of the subject, sentence structure, text prediction, elaboration of the text and interaction. These activities, especially writing the letter, provide the foundation of writing abilities.
    We have to ensure that there is sufficient time for writing education and that we provide students with the opportunity to write the text content on the various topics.
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  • Miyuki SHIBATA
    2011 Volume 44 Pages 11-16
    Published: December 22, 2011
    Released: September 20, 2020
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    This paper considers the way to improve students′ motivation in presentation classes in College of Technology. This consideration is written on a basis of my practices, which I carried out in classes of "Japanese" to 3rd graders from 2008 to 2010. In order to know students′ opinions and thoughts in presentation class, I analyzed the students′ questionnaire. Through the analysis, three effective ways to improve students′ motives were found. These are (1)self-expression through that he or she is interested in, (2) good use of PowerPoint, and (3) mutual evaluations between students. If students play active roles in a class, students should be able to improve Communication-Skills steadily and pleasantly.
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  • What do the Change of the Exhibition in Hiroshima Atomic Bomb Museum and the Popularity of the Battleship-YAMATO museum Mean?
    Tetsu UENO
    2011 Volume 44 Pages 17-20
    Published: December 22, 2011
    Released: September 20, 2020
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    For approximately fifty years since the war, Hiroshima has practiced "peace education backed by science education", emphasizing that scientific technology could destroy peoples′ happiness if misused. The circumstances, however, have changed greatly over the last decade. The idea that Japan could stand up to Western countries was thanks to the fact that scientific technology had become widespread. This paper analyzes the circumstances in Hiroshima to determine the effectiveness of "peace education backed by scientific endeavors".
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  • Katsuya SUKOU
    2011 Volume 44 Pages 21-26
    Published: December 22, 2011
    Released: September 20, 2020
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    In the exams for school education, especially in the re-exams, I propose the methods of creating the tests and evaluating the tests for considering personal education as possible. Answer sheet will contain a variety of individual student data in the group lessons. I will present various approaches of using the data to teach individuals. In particular, I want to propose the personalized re-exam for personal support. Through concrete practices in mathematics school education, I consider the effort and the effect.
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  • Tadashi MIYAMOTO
    2011 Volume 44 Pages 27-32
    Published: December 22, 2011
    Released: September 20, 2020
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    This paper considers criteria for mobile phone-aided webpage of math class. I made both a website for PCs and a mobile phone-aided website of math class. The difference of roles between them was derived from questionnaires for students.
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  • Tomoki NAGATA, Daisuke MIHARA
    2011 Volume 44 Pages 33-38
    Published: December 22, 2011
    Released: September 20, 2020
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    The purpose of this study was to assess daily physical activity and physical fitness, and to examine the relationship of both in OYAMA National College of technology students. Subjects were 173 (age;17.1土 1.1, BMI;21.0士3.0). All subjects wore activity monitor (Lifecorder-GS, KENZ, Japan; LC) over a seven-day period, in order to determine the Walk-steps, Exercise[Ex], daily physical activity and time engaged in each of the 3 level physical activity (LC1-3, LC4-6, LC7-9). The index of physical fitness level was evaluated by a new physical fitness tests. As a result, Walking steps were 5345土2120 for Inactive and 7289土3009 for Active group students. Physical activity time in intensity of LC4-7 was 16士11 for Inactive and 20士8 for Active on Weekdays, and 8土8 for Inactive and 19土14 for Active on Weekends. Finally, Exercise (Ex) in both groups was lower than guideline. In subjects, a total point of physical fitness tests was lower than national mean value. These results suggest implicate that there should be a need to increase the physical activity time to improve physical fitness level.
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  • Students′culture, beliefs, and learner contribution
    Sakae SUZUKI
    2011 Volume 44 Pages 39-46
    Published: December 22, 2011
    Released: September 20, 2020
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    This paper reports on how to deal with big class size in order to get to know individual students via one-line responses from students. One-line responses from students reflect their feelings and beliefs. By classifying and examining one-line responses, we can elucidate student culture as well as implications for strategies for learning English. This paper also suggests that one-line responses from student should be utilized to evaluate classes and develop efficient activities in classes.
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  • Toshihiro YAMANISHI
    2011 Volume 44 Pages 47-56
    Published: December 22, 2011
    Released: September 20, 2020
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    This study researches whether using a dictionary while reading is efficient and if so, which levels of learners are able to use dictionaries effectively.
    Dictionaries have an important place in foreign language learning, especially in vocabulary acquisition and reading comprehension. Even so, some researchers have not yet agreed on how necessary it is to make use of them in language learning. The author investigates whether using dictionaries is really effective in reading through these opinions.
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  • Kichiro KIKUCHI, Rei AKIMOTO, Masashi MIYAMOTO
    2011 Volume 44 Pages 57-62
    Published: December 22, 2011
    Released: September 20, 2020
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    The authors have tried once to produce a dragonfly-type ornithopter using the power-type rubber, a flight could not be realized because of the difficulty in weight reduction. With recent advances in technology, ultra-compact and lightweight coreless motors, batteries, transmitter, receiver have been developed, now readily available. The authors, based on the results of previous studies, using parts that have been developed, we have attempted to make the production of a remote control ornithopter. This paper describes coreless motor with performance test results, design and production of a dragonfly-type and a butterfly-type ornithopter aiming to reduce the weight, and the current flight test results.
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  • Susumu YAMASHITA, Youichi TANAKA, Takashi ISOYAMA, Haruo KAGAMI
    2011 Volume 44 Pages 63-68
    Published: December 22, 2011
    Released: September 20, 2020
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    In this study, a moving test is carried out for Jet Hover MT made by Sumitomo Heavy Industries, Ltd., and it is a purpose to clarify the motion properties. Specifically, a basic performance test and moving test were carried out.
    As a result, next became clear.
    1. The rotary torque that is going to tum the left always acts on the hull.
    2. When it inclined the rudder to the right around 10 degrees that going straight characteristics were the best.
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  • Keiji HOUJOU, Yuuta ARAI, Yoshihide SHIBATA, Iruru NISHINO
    2011 Volume 44 Pages 69-72
    Published: December 22, 2011
    Released: September 20, 2020
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    This paper describes the effects of stress ratio on the ΔKth improved by overload. Stainless steel SUS316 was prepared as test materials. Tensile overload was applied to compact tension specimen, subsequently fatigue tests were carried out at stress ratio R=0.5. The main conclusions are as follows; (1) The value of ΔKth increased with increasing of the tensile overload. (2) The improvement of ΔKth depended on the stress ratio. (3) Effect of overload improves the fatigue limit of material with crack, which improves safety and reliability.
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  • Hisashi MASUBUCHI
    2011 Volume 44 Pages 73-78
    Published: December 22, 2011
    Released: September 20, 2020
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    This paper reports an experimental investigation of the airlift pump used in the plant factory. We made a small-sized airlift pump which would operate in the nutriculture device for personal use. In the nutriculture, airlift pump has two important functions which are circulation and aeration of nutrient medium. We focused on the former function and quantity of water delivered was measured in order to understand the effects of riser tube dimensions on the pump performance. The results were compared with analytical calculation which was based on the momentum equation. As a result, it was found that the pump performance was seriously affected by riser tube dimensions and water flow rate of the pump changed in the same direction as analytical suggestion.
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  • Takashi KAWAMURA
    2011 Volume 44 Pages 79-82
    Published: December 22, 2011
    Released: September 20, 2020
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    This paper is the result that applied Non-Linear Crack Mechanics when Plane stress condition and Plane strain condition. It is different from crack opening displacement about Plane stress condition in Plane strain condition.
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  • Shin-nosuke SUZUKI, Hideaki YOKOSHIMA
    2011 Volume 44 Pages 83-88
    Published: December 22, 2011
    Released: September 20, 2020
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    This study deals with the results of study on the fundamental development of electric assist attachment for bicycles. Electric assist bicycles does not have only these advantages (for example, light pedaling, good for health care, and not to need driver license), but it is also good for ecology, because it does not use fuels. Hence it is getting more and more popular with its market increasing. However the market price of electric assist bicycle is still higher than 60,000 yen. In this study, I propose the technique to construct an electric assist bicycle by using an ordinaly bicycle and the electric assist attachment. Using this technique, I attempt to reduce production costs and recycle the resource. So then I considered front wheel exchange method for attaching this attachment to ordinaly bicycle. First of all, I have designed and made the wheel of this attachment. Second, I have started to make an IPM motor, but I couldn't finish this motor. And the last, I verified possibility of adding Assist function through the easy experiment using the wheel.
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  • Satoshi NISHINO
    2011 Volume 44 Pages 89-98
    Published: December 22, 2011
    Released: September 20, 2020
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    Automatic recognition of adults and minor are demand for vending machines for tobacco and alcohol. The proposed method was discussed to try the basis trial for automatic recognition of adult and minor to be using the water content in skin decreases with age. In the method, near-infrared spectral characteristics of the cheek using it tends to be absorbed into water (1100∼2200nm wavelength) was measured by a spectrometer. As a result, the rate of increase in absorbance in a wavelength of about 1900nm (slopes) revealed that there is a big difference between a minor and adult. This method was used to identify adult men and women using this difference. In that case, in order to strengthen of the method, the "adult" and "minors" in addition to two categories of "unidentifiable", "non person" by adding the two categories, identified as four categories got for the recognition obtain a recognition rate of 81.8%.
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  • Shigeo KINNO, Jou HONZAWA
    2011 Volume 44 Pages 99-108
    Published: December 22, 2011
    Released: September 20, 2020
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    By applying the one-chip microcomputer, it was possible to produce by the circuit which was very much simplified in respect of boxcar integrator which is complicated and expensive weak signal measuring device. Naturally, it is very cheap for the production cost. In this paper, the following are reported: Design, production, performance and specification of produced equipment.
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  • Yasunori KOBORI, Haruo KOBAYASHI
    2011 Volume 44 Pages 109-114
    Published: December 22, 2011
    Released: September 20, 2020
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    This paper proposes a new AC-DC converter with Power Factor Correction (PFC) circuit. It requires few components (five switches, one inductor and one capacitor) to convert AC to DC directly. In this low-output-voltage H-bridge AC-DC converter, inductor current always flows in the same direction. We investigated two types of PFC circuits; boundary conduction mode (BCM) and continuous conduction mode (CCM). The new PFC circuit for BCM does not use an analog multiplier. We describe circuit topologies, operation principles and simulation results.
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  • Tatsuo WATANABE
    2011 Volume 44 Pages 115-120
    Published: December 22, 2011
    Released: September 20, 2020
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    In this paper, the new correction method of the prediction error Lorentz's method of guessing in chaotic time series prediction was proposed. By understanding the pattern of the error of a time series beforehand showed that predictive accuracy improved. Moreover, the improvement in predictive accuracy was also understood are restricted in early stages of prediction. Furthermore, the theoretic limit of improvement in predictive accuracy was considered. The proposed method may be useful also for prediction of natural phenomena, such as an earthquake.
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  • Kiyomi NANSAI, Naoki AOYAMA
    2011 Volume 44 Pages 121-126
    Published: December 22, 2011
    Released: September 20, 2020
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    Nowadays, CPU is aiming at improvement in throughput by multi-core-ization instead of improvement in a clock-rate. Although the merit of multi-core CPU is useful enough in the normal use, parallel programming becomes essential in order to pull out the performance of multi-core CPU further. Also in programming education, it will be necessary to take in the approach to the parallel programming, and the practical programming method from now on. We developed the teaching materials for parallel programming which are suitable in order to make students experience parallel programming.
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  • from Literature and Writers via Information, Philosophy and Ethics toward Introductory Engineering Systems Lecture
    Kazuyoshi KUBO
    2011 Volume 44 Pages 127-136
    Published: December 22, 2011
    Released: September 20, 2020
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    This paper presents the reinstated situation on Introductory Engineering Systems Lecture 2010, and then shows list of ideas such that engineering systems, information science, biophysical and philosophical aspects, literatures in education connected to writer and information, and introductory philosophy. Finally, all the items previously shown are concentrated toward a proposal on the Introductory Engineering System Lecture 2012.
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  • Masato KASAHARA, Saiji KATO
    2011 Volume 44 Pages 137-142
    Published: December 22, 2011
    Released: September 20, 2020
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    The controlled object of this study is Furuta′s pendulum. The torque is given at one place, and two angles of the pendulum are manipulated. It is proposed that the gain of LQI control of the pendulum is adjusted. It is controlled to be a purpose using proposed gain.
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  • Katsumi HIRATA, Akira KISHIKAWA
    2011 Volume 44 Pages 143-146
    Published: December 22, 2011
    Released: September 20, 2020
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    Recently, various methods for underground exploration are developed. If the method of analyzing the thermography obtained with an infrared camera also in it is used, wide range exploration may be able to be performed in remoteness and non-contact for a short time. Since the temperature distribution of the ground surface will become uneven if a buried object is under the ground, it is thought that the position and form of it is estimated with analyzing the thermography. In this paper, after explaining the principle to estimating the position and top form of the buried object, the possibility and the features of the method is clarified through consideration of the numeric simulation and the fundamental experimental result.
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  • Hiroshi YOSHIDA, Satomi ISHIKAWA
    2011 Volume 44 Pages 147-152
    Published: December 22, 2011
    Released: September 20, 2020
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    In the process of normal electro-osmotic dewatering of a semi-solid sludge put between two plate-type electrodes placed above and below in vertical direction of the sludge bed, the water content in part of the bed near the upper side electrode opposite to lower drainage surface is considerably reduced, resulting in electrically poor contact between the upper electrode and the bed being dewatered, and then in excessive increase of electrical contact resistance between them. This obviously obstructs the efficiency of electro-osmotic dewatering throughout the bed, and consequently the continuation of the dewatering process becomes difficult. From the viewpoint of lowering the influence of increasing electrical contact resistance, the use of ringed-type upper electrode, in which such electrodes arranged vertically at regular intervals are attached at the sidewall of sludge bed put into a cylindrical vessel, was experimentally atempted by using multi-stage ringed-electrodes, and compared with normal plate-type upper electrode.
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  • “The Works of Detergents Containing Proteinases”
    Toratane MUNEGUMI
    2011 Volume 44 Pages 153-158
    Published: December 22, 2011
    Released: September 20, 2020
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    Amylases, lipases, cellulases, and proteinases (peptidases) have been used for the enzymes added in detergents. Activity of added enzymes in detergents is utilizable to lead new themes of extension lectures. This research describes proteinases added in detergents. Proteinases hydrolyze proteins to small proteins, peptides, or amino acids. The methods for detection of these compounds are important for success of experimental visualization of enzymatic reactions in the mixture of proteins by the proteases included in the detergents. The survey study suggests that the method using a kind of urine test paper impregnated with tetrabromophenol blue is superior to other methods of detection.
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  • Takakuni TANAKA, Hiroki SAITO, Narumi YOSHIKAWA, Yuko KAWADA, Shouta O ...
    2011 Volume 44 Pages 159-164
    Published: December 22, 2011
    Released: September 20, 2020
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    The dried gourd (Kanpyo) is a special product of Tochigi. Now, it was a problem that the Kanpyo did not have use widely. For the purpose of looking for a new use of Kanpyo, we tried to estimate about suction of Kanpyo powder and Kanpyo tablet. As a result, both had strong suction. Therefore, Kanpyo was proved to be usable as a dry material.
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  • Junichi TAKAHASHI
    2011 Volume 44 Pages 165-172
    Published: December 22, 2011
    Released: September 20, 2020
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    Two reinforced concrete buildings which houses the department of electronic and advance course of Oyma National College of Technology has recorded strong earthquake during The Tohoku-Chihou Taiheiyou-Oki Earthquake. In this paper, described the strong earthquake motions and building response due to the motions.
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  • Hajime YOKOUCHI
    2011 Volume 44 Pages 173-176
    Published: December 22, 2011
    Released: September 20, 2020
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    In this paper, we developed the experience type teaching materials, based on a survey for school students teaching structural mechanics. The experience type teaching materials are able to experience the strength and deformation. In addition, It can be easily performed the structural testing on the desktop. The results of the trial tests were confirmed to be effective as teaching materials that describes the theory and solution.
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  • Tsuyoshi DEGAWA, Tarou ATSUMI, Takakuni TANAKA
    2011 Volume 44 Pages 177-182
    Published: December 22, 2011
    Released: September 20, 2020
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    There is much data processing that is not based on statistical knowledge in the report of experiments of analytical chemistry and is seen and lacks the training of the data processing of student experiments in the information processing practice.
    And then we perform a mutual cooperation for experiments of analytical chemistry and information processing practice. We report an attempt for improving data processing for experiments of analytical chemistry and information processing practice.
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  • “Itoma-no-ki” written by KURODA, Naokuni
    Yoko SAKAIRI
    2011 Volume 44 Pages 183-192
    Published: December 22, 2011
    Released: September 20, 2020
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    The old document named “Itoma-no-ki” was written in 1713, by Naokuni KURODA, the Feudal Lord of Shimodate. This modest contribution of “Itoma-no-ki” assists in further analyzing the relationships between different regions in the Edo period.
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