Abstracts of Annual Congress of The Japan Society of Home Economics

The men's 3D body curved surface shape (subjects: 934 males, average age: 48 years old) were extracted for the purpose of the 3D men's garment automatic design. The 3D body shapes were measured using using a non-tactile 3D-body measuring instrument. Each male's 3D body surface by means of our system was measured setting vertexes (X, Y, Z) and the 1D body sizes. The 3D body surface except for the head, hands, feet were divided into a 1,988 triangle mesh (faces) with a total of 1,019 vertexes. Concentrated Gauss curvature Kc on the interior body surface and concentrated geodesic curvature kc on the exterior body surface using the angles of each vertexes, and concentrated mean curvature Hc using the bend angles of faces were investigated for the 3D shapes. The male's 3D body curved shape for mean angles of Kc, kc, and Hc was extracted. Five male's 3D body curved shape types for the elliptic convex and the hyperbolic concave curved shape areas were categorized by using values of Σ+Kc + Σ+Hc and ∑-Kc + ∑-Hc.

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One of the contamination problems on river water quality is caused by NO₃-N which has an adverse ffect on the human body. We tried to grasp the nitrogen transfer from the water source to the tap water so as to secure safe and good quality water to live a healthy and comfortable life. In this study, we collected the tap water from Handa City in Aichi Prefecture, which originated from the Nagara River basin, at 22 o'clock every day from March 2016 through December 2016 and measured the NO₃-N concentration with a simple water quality measuring instrument by absorbance method. We also focused on the NO₃-N concentration fluctuations in the tap water and the NO₃-N loading on the environment, and analyzed the transport of NO₃-N in the Nagara River Basin. The following results were obtained. 1) In the basin and the observation period of this study, it was confirmed that the average temperature and the average precipitation in the basin were not correlated to the NO₃-N concentration in the tap water. 2) The NO₃-N concentration in the tap water was observed to increase on the second day of the rain event by the typhoon No. 16 in 2016. It was suggested that precipitation increased the NO₃-N concentration in the runoff from basin including the forest. 3) As the discharge increased, there were the cases that NO₃-N concentration in tap water decreased.

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Purpose; The exchange between elementary schools and elderly people
in a community has become active. It is pointed out that it comes from
urbanization and the change of family structure. We examined
the relationships between the "Satomago System" and the concept of
welfare in education with the government guidelines for teaching.
Method; The detailed examination of the materials related to the activities,
and the interview with the relevant parties.
Result & Discussion; The exchange with the elderly in the name of
"Satomago System" carried out at A elementary school in Tokyo was
recorded as classes of “Home Economics Education”
and “Special Activities”.
Since the activities are required to follow the direction of the government
guidelines for teaching, the activities have been secured by counting other
related subjects too.
Therefore, the "Satomago System" between elementary
school children and the elderly has been directed by the existence
of “Home Economics Education” as a subject to study "family"
to follow the government guidelines for teaching.

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