著者
川崎 太志 飯 聡 西村 由二三 白土 男女幸 濱田 明美 仲井 朝美 芳田 哲也
出版者
一般社団法人 日本調理科学会
雑誌
日本調理科学会誌 (ISSN:13411535)
巻号頁・発行日
vol.42, no.2, pp.123-128, 2009 (Released:2015-03-20)
参考文献数
8

和包丁における,様々な刃先形状と官能評価の関係を明らかにするために,熟練者が研いだ4つの完成度(50%,70%,80%,100%)の包丁について,刃先粗さ,“切れ味”および“研ぎ味”を測定し,これらの項目間の関係を調査した。顕微鏡写真から測定された刃先粗さに関しては,70%の刃先は他の完成度のものよりも粗かった,その一方で100%の包丁は最も刃先粗さが小さかった。レーザー変位計を用いて測定した刃表面粗さと刃先角度は,完成度間で類似した傾向が認められた。“切れ味”および“研ぎ味”については,シェッフェの一対比較法を用いて評価を行った結果,100%の包丁が他の完成度に比べて高い点数を示した。100%の包丁の切れ味は50%の包丁に比べて高い値を示したが,包丁の刃先粗さは100%の包丁が小さかった。また,刃先粗さは“切れ味”との関係において有意な負の相関(p<0.05)が認められた。このように,表面粗さや刃先角度の変化が比較的小さいとき,刃先の細かい粗さが“切れ味”を向上させることが示唆された。
著者
小田原 晶子 佐藤 ひろゆき 杉江 朋彦 森迫 清貴 塩野 剛司 北島 佐紀人 仲井 朝美 濱田 泰以
出版者
The Japan Society for Composite Materials
雑誌
日本複合材料学会誌 (ISSN:03852563)
巻号頁・発行日
vol.35, no.1, pp.27-32, 2009 (Released:2010-11-30)
参考文献数
4
被引用文献数
3 2

There are many traditional technologies that have much knowledge to fabricate products in Japan. Such a knowledge is so-called technical intuitions and sensitivities. The craftsmen apply the technique for regenerating some traditional products and we defined the knowledge as “implicit knowledge.” The concept of this study is to scientifically analyze the implicit knowledge of those technologies. Here, the implicit knowledge would be traced from the contemporary view point. Thus, the knowledge can be applied to the modern technology which is adaptable to the market requirements. Finally the traditional technology retailed with the advanced technology many create a new technology. Kyokabe is one of Japanese clay wall for the traditional architectures. The clay wall consists of clay, sand and straws. Straws obviously play a reinforcement, thus Kyokabe can be treated as a composite material. Straws are immersed in the mixture of clay, sand and water for some period of time. The implicit knowledge which Plasterers (masters of Kyokabe) have acquired is that increase in the straws quantity results in increase in compressive strength and increase in the time improves workability in drawing. In this study, the implicit knowledge is scientifically resolved. The effects of the quantity and the immersion time on the compressive properties and workability of Kyokabe were also investigated.
著者
花田 美和子 西脇 剛史 仲井 朝美 濱田 泰以
出版者
社団法人 繊維学会
雑誌
繊維学会誌 (ISSN:00379875)
巻号頁・発行日
vol.60, no.2, pp.44-49, 2004 (Released:2006-02-09)
被引用文献数
1

Braids have been applied to various components for over one thousand years. Binding, bundling and hanging are listed in the representative uses of braids. The braids have characteristic mechanical properties, low modulus, large deformability, variable Poisson's ratio and low stiffness under flexural and compressive loads, and so on. Evaluation method of the braid properties has not been established. In order to clarify mechanical properties of the braids under the initial tensile loading quantitatively, an evaluation method is proposed in this study. By the application of the proposed method to three kinds of glass fiber braids, effects of braiding structure on the mechanical properties are discussed. Therefore the valid tensile testing method for evaluation of the braid properties could be proposed.
著者
白土 男女幸 久米 雅 大西 明宏 仲井 朝美 佐藤 ひろゆき 牧 道太郎 芳田 哲也
出版者
一般社団法人日本機械学会
雑誌
ジョイント・シンポジウム講演論文集 : スポーツ工学シンポジウム : シンポジウム:ヒューマン・ダイナミックス : symposium on sports engineering : symposium on human dynamics
巻号頁・発行日
vol.2007, pp.254-257, 2007-11-13

The purpose of this study is to examine the optimum fermentation period of clay by analyzing the technical properties of daubing motion among several kinds of clay. An expert wall craftsman (right-handed male, 56 years old, 28 years of work experience) and a non-expert (right-handed male, 37 years old, 6 years of work experience) daubed on the wall using 4 kinds of clay with different fermentation period (1-day, 1-, 2-, 3-week). The shape-maintenance property of clay was evaluated by slump test. The motion of daubing was measured using a three-dimensional motion analysis system. The slump value under 1- and 2-week clay condition was higher than 1-day and 3-week. Under 1-day clay condition, speed and acceleration of the right hand (vertical direction) were lower than other conditions. Moreover, daubing motion of the expert was hardly influenced on clay condition compared with the non-expert. These results suggest that the optimum fermentation period of clay is 1 or 2 weeks.
著者
秀熊 佑哉 芳田 哲也 大西 明宏 白土 男女幸 久米 雅 仲井 朝美 柴田 勘十郎
出版者
一般社団法人日本機械学会
雑誌
ジョイント・シンポジウム講演論文集 : スポーツ工学シンポジウム : シンポジウム:ヒューマン・ダイナミックス : symposium on sports engineering : symposium on human dynamics
巻号頁・発行日
vol.2007, pp.403-406, 2007-11-13

Kyoto bow is the Japanese traditional bow which made form 100% natural materials such as bamboo, woods and so on. Kyoto bow consists of three different parts and they were glued together, so that Kyoto bow can be regarded as hybrid adhesive composite structure. The characteristics of Kyoto bow very much depend on the materials and adhesive. The purpose of this study is to investigate the effect of the structural materials of bow on muscle activity during drawing the bow. Three kinds of bow were used in this study; 1) typical carbon bow, 2) Kyoto bows which were produced with normal bamboo, or 3) heated bamboo. The deformations of bow and muscle activities were measured during drawing the bows by using the motion capture and the electromyogram. As a result, advantage of a Kyoto bow and muscle activity during the drawing the bow were clarified.