English summary of the 4 number of volume 45 publishing paper

Original Paper

Title: Relationship between General Self-Efficacy and Thinking before Manufacturing
Author: Chikahiko YATA, Kunio UEDA, Yasuhiro MADA

題目：「ものづくり学習」に対する生徒の思考活動と自己効力との関連
著者：谷田親彦・上田邦夫・間田泰弘

Abstract

The purpose of this study is to explore the relationship between students' thinking before manufacturing and their self-efficacy, i.e., students' perceptions about the possibilities of their own performance. We measured students' thinking before manufacturing and then their self-efficacy using GSES (general self-efficacy scale). A multiple regression analysis was computed to examine the relationship between the two measures. The results indicated that three factors of thinking were related to self-efficacy, 'examination of processing operation,' postulate of performance' and 'cognition of materials to use.' In particular, the GSES factor, 'anxiety about failure' had a great impact on 'postulate of performance.' In addition, it was proved that there were strong interrelationships among those three factors in the high self-efficacy students group. In contrast, in the low self-efficacy group minimal interrelationships were observed among the subcategories of thinking, suggesting the necessity of effective educational guidance concerning students' thinking.

keywords; manufacturing class, thinking, self-efficacy, multiple regression analysis

Title: Development of Musical Instruments Using Rain Drops
Author: Yoichi NAKAZONO, Akihisa TAKAYAMA

題目：雨垂れを利用した楽器の開発
著者：中園与一・高山明久

Abstract

A water droplet generates sound as it falls on a water surface and destroys air bubbles. When different lengths of resonance tubes are attached to the sound, scales of a wide variety of frequencies are produced. The objective of this study was to discover optimal conditions for designing musical instruments that generate peaceful sounds. Effects of the length and diameter of the resonance tube, the diameter of the nozzle at the water jet, and the materials with which they are made, as well as theoretical predictions of resonance, were studied to discover the optimal designs for musical instruments using rain drops. We produced a musical instrument with an acoustic range of two octaves and a half (G to D#), capable of musical performance.

Keywords: water, drops, resonance, tube, musical instrument

Title: Development of the Educational Stirling Engine -Simple Prediction Method for Maximum Shaft Power-
Author: Fujio TODA, Hidenori SAITOH, Katsuaki NAKAJIMA, Yoshinori OHYAGI, Yasuo HARIGAYA, Michiyoshi SUZUKI

題目：教育用スターリングエンジンの開発―簡易最大軸出力予測法―
著者：戸田富士夫・齋藤秀則・中島克彰・大八木義教・針谷安男・鈴木道義

Abstract

The Stirling engine models are utilized to the creative education, the technical education and the engineering education in the junior high school, the high school, the technical college and the university.
In this study, an engine model for the junior high school and two engine models for the high school and the technical college and the university were designed and manufactured for the aids to teaching. Furthermore, the balance type torque meter which could measure the engine performance was developed. In addition, the simple prediction method of the maximum shaft power for changing the model engines in to the educational engine.
As the result, it was found that the balance type torque meter could measure the shaft power of the model engine. From these experimental results, the authors obtained the following empirical equation.
L_smax=0.0185.(P_m.V_sw.f)² (W)
Where, L_smax is maximum shaft power, P_m is the mean pressure in the engine, V_sw is the piston stroke volume (the α type is expansion space side volume and β and γtype are the compression space side volume), ｆ : frequency in the cycle.

Key words: Stirling Engine, Engine Performance, Creative Education, Technical Education

Practical Paper

Title: Study of Network System for Meteorological Observation Equipment
Author: Makoto YAMAMOTO, Makoto IIJIMA

題目：気象観測装置のネットワーク化の研究
著者：山本誠・飯島眞理

Abstract

In this study, an old type meteorological observation equipment was successfully connected to the Local Area Network and the Internet, and weather data display system was original developed.
This system arranges and processes intelligibly output data of the equipment to display a computer screen, and it transfers simultaneously to WWW server.
As a result, the newest measurement data could always be displayed appropriately and it was also able to browse weather data via the Internet significantly for improvement of informational sharing.

Commentary

Title: The Point of View to Organizing the Educational Curriculum Based on the Experiences of Working
Author: Masatoshi ISHIZAKA, Sadao FUKASAKU

題目：ドイツ　デュアル・システムから見た職場体験学習への視点
著者：石坂政俊・深作貞男

Abstract

In the present technical high school in Japan, the term for experience working used in the syllabus is not clearly defined.
Therefore, this is to show the cooperstion between students / schools and the sponsoring companies, the social acknowledgement by engineers, and also the school curriculum, in terms of introducing the experiences of the work place, which refers the terms used in the vocational education in Germany and it is present situation.

Keywords: Job-training, Dual System, Vocational Education

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