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Studies on Food Consumption Pattern (Part II)

Authors :
Seiji Yoshikawa
Toshio Ishima
Fumie Osawa
Sinpatiro Tamura
Source :
Eiyo To Shokuryo. 23:606-609
Publication Year :
1970
Publisher :
Japanese Society of Nutrition and Food Science, 1970.

Abstract

One of the calculation methods of the future food consumption pattern was developed. A n dimensional pattern vector was thought to exist and move on the surface of the unit sphere in n dimensional space. A calculation method was studied on the next 2 assumptions, (1) a pattern moves on a straight line in the sphere surface, (2) infinite time is necessary to move from a boundary to another boundary of the first quadrant area.Firstly, a locus of pattern moving is expressed as vectors using a vector OPin which OA represents the present pattern, OB represents the past pattern and OP is a vector which has a right angle with vector OA. Secondly, the position of a future pattern is decided using the distance (radian) from the starting boundary point, according to the logistic curve equation, in which y is a distance from the starting point, t is a time and K, ao and a1 are parameters. In this study, the distance from the starting point to the targent point is used as the K value.

Details

ISSN :
18838863
Volume :
23
Database :
OpenAIRE
Journal :
Eiyo To Shokuryo
Accession number :
edsair.doi...........609f695366739d311b93c23bd878417e
Full Text :
https://doi.org/10.4327/jsnfs1949.23.606