English summary of the 4 number of volume 49 publishing paper

Vol.49 No.4

Original Paper

Title:A Teaching Tool with PIC in Solar Battery
Author: Masaharu YOSHIDA, Mitsuhiro KOHARA, Yuri HAMADA

題目：PICを用いた太陽光発電教材
著者：吉田昌春　　小原光博　　濱田友里

キーワード：エネルギー教育　太陽光発電　ＭＰＰＴ（最大電力点追尾）　PIC16F877　PWM


In energy education, photovoltaic generation panels have become useful and familiar tools. It is important to deal with energy conversion not only qualitatively, but also quantitatively. Because of this, as teaching material to learn solar panel energy conversion quantitatively, we developed a device with maximum power point tracking (MPPT) technology and power display function. In the device step up and down converters are used, and their electrical power generation control and measurement is achieved by use of PIC microprocessor and control of PWM signal. By using PIC, generated power is calculated from the measured current and voltage of the photovoltaic panel and these are displayed on a liquid crystal display (LCD) device.

Keywords： Energy Education, Photovoltaic Generation, MPPT, PIC16F877, PWM

Title:Watermarking Method with Visible and Hidden Parts for TIFF Image
Author: Akira KIKUCHI Suhe BATEER Hisako SAKURAMOTO

題目：TＩＦＦ画像の表示領域と非表示領域を組み合わせた画像透かし手法
著者：菊地章　　スフー バトル　　櫻本尚子

キーワード：画像透かし，画像データベース, TIFF画像，視覚特性，最小2乗法，非表示領域


The use of image database is indispensable in the Information Education. Particularly in Information Learning, various explanatory documentations are related to a variety of corresponding images and thus it is a complex task to manage both coherently. The use of watermark technologies enables us to manage theimages and the documentations simultaneously by embedding the documentations in the related images. However, the traditional watermarking method causes the deterioration of image quality. In order to improve the quality of watermarked image, we propose three new watermarking methods in this paper. First, we propose a new watermarking method that avoids image areas discriminated in the visual field by taking into consideration characteristics of human vision. Second is a new watermarking method utilizing high-degree estimation functions by Least Squares. Third is a new watermarking method including an invisible image and a new tag of TIFF structure, which enable us to hold the loss-less image. The proposed watermarking methods are evaluated through the numerical experiments, and we verify their effectiveness.

Key words : Watermarking, Image Database, TIFF, Human Vision, Least Squares, Hidden Image

Title:Manufacturing Education Learning of Automated Machine Factory Model
Author: Noriya KAYAKI Kazumasa OHASHI

題目：生産教育のための自動化された機械工場モデルの学習教材
著者：栢木　紀哉　　大橋　和正

キーワード：機械工場モデル，無人搬送車，学習教材，生産教育，マインドストーム


In manufacturing machine factories there have been advancements in automated machinery and effective parts processing and thus in manufacturing education, it is important to understand the state and technologies of such.
In this paper, a learning model of automated machine factory utilizing Automated Guided Vehicles (AGV) is proposed for the study of how parts are processed. Further, using this factory model, as learning material targeting University students, the study verified a deepened understanding of parts processing in machinery.

Key words : Automated Machine Factory model, Automated Guided Vehicle (AGV), Learning Model, Manufacturing Education, Mindstorms

Practical Paper

Title:Development and Evaluation of Teaching Method concerning Program, Measurement and Control Study Using an Autonomous Robot Teaching Material
Author: Akiko SHIMADA Kazuyoshi YAMASUGA Yasuo HARIGAYA Michiyoshi SUZUKI

題目：自律型ロボット教材を活用したプログラムと計測・制御学習に関する授業方法の開発と評価
著者：嶋田　彰子　　山菅　和良　　針谷　安男　　鈴木　道義

キーワード：技術科教育，授業実践，計測・制御教材，ロボット教材，自律型ロボット


In technology education in junior high schools, autonomous robot teaching materials are suited to improvement in students' study motivation and the acquisition of basic knowledge in programming, measurement and control. However, good teaching methods for programming, measurement and control learning by using autonomous robots have not been adequately developed. We therefore systematically carried out teaching practices for programming, measurement and control learning by using the autonomous robot and developed a teaching method that achieves improved study motivation and acquisition of fundamental programming, measurement and control knowledge.

Key words : Technology Education, Teaching Practice, Autonomous Robot

Title:A Basic Study on Training of Practical Competence of University Students Through Development of Teaching Materials
- Means of Measuring Practical Competence and the Structure of Lesson -
Author: Satoshi EMA Masaharu YOSfflDA Mituhiro KOHARA

題目：教材開発を通した大学生の実践力の育成に関する基礎研究
　　―実践力の把握方法と授業形態について―
著者：江馬　諭　　吉田　昌春　　小原　光博

キ―ワ―ド：実践授業，教材，課題解決学習，アンケート調査，実践力


Practical classes have been carried out for four years since 2003 in order to examine ways of measuring practical competence of university students studying to become teachers and to evaluate content and form of lessons with respect to education of practical competence. In the classes, students developed teaching material in a free subject, drawing out teaching plans and presentation for their work. A questionnaire to the students was carried out to investigate the motives and goals by which they selected teaching materials and their self-evaluations. The degree of completeness in their teaching materials and teaching plans was assessed by the lecturers.

Key words: Practical class, Teaching material, Problem solving study, Questionnaire and Practical competence

Title:Development and Lessons Practice of Experimental Device with Peltier Element to Learn Thermal Energy Conversion
Author: Toshikazu YAMAMOTO Jun MORIYAMA Kazuhiro SUMI Yasuyuki IKEGAMI

題目：ペルチェ素子を用いた温度差発電学習教具の開発と授業実践
著者：山本　利一　　森山　潤 　角　和博　　池上　康之

キーワード：エネルギー問題，温度差発電，教具，ペルチェ素子，実験授業


The energy supply and demand balance being very unstable in Japan today, utilization of renewable energies as alternative for fossil fuels is an important issue. In this study through experiments in thermal energy conversion teaching materials for learning were developed, interest and concern were heightened and efforts were made to bring awareness of the issues closer to home. We were able to verify the students' gaining of a deeper understanding of energy problems and grasping of energy conservation concepts through the experiments in the classroom activities.
The educational material was two water tanks into which waters of different temperatures were put. Using a peltier device, thermoelectric generation due to temperature difference was created. Meters were attached to measure water tank temperatures, surface temperature in the vicinity of the peltier device, and electromotive force and the load current.
In the experiment lesson, results verified educational effect, showing that students gained higher awareness of energy issues and also were able to effect concrete instances of energy conservation that they were able to do themselves.

Keyword : Energy Issues, Thermal Energy Conversion, Teaching Material, Peltier Device, Experiment Lesson

Case Study Paper

Title:Programmed, Measured and Controlled Learning Using "Intelligent House" Interdisciplinary Teaching Material
Author: Shinnosuke MORI Toro YAMAMOTO

題目：融合教材“インテリジェントハウスを使用したプログラムと計測・制御学習
著者：森　慎之助　　山本　透

キーワード：融合教材，インテリジェントハウス，プログラム，計測・制御，協同作業


The theme of the "Intelligent House" was chosen as a subject as a programmed, measured and controlled learning of the Information and Computer in technology education for Junior High Schools. As one system of measurement and control, "Intelligent House" teaching materials were taken and students gradually gained understanding of basic concept about sensor and the relationship between computer and program. In self-directed group activities the task was to create a program employing flow charts. Information regarding students' degree of knowledge of and interest in the study contents was collected through questionnaires before and after lessons and was examined in connection to educational performance.
It was found that the teaching materials were grasped as a part of measurement control system and were effective not only in deepening students' understanding of sensor, but also in advancing their interest in and appreciation of the relationships between a program and a systems of measurement and control.

Key words : interdisciplinary teaching material, intelligent house, program, measurement and control, group activity

Contributed Paper

Title:Way of Revision of [Technology]
Author: Koushi UENO

題目：技術分野の改訂の方向
著者：文部科学省初等中等教育局教育課程課　上野　耕史