Introducing viewpoints of mechanics into basic growth analysis - (XI) negative weight problem in basic growth functions and its hypothetic avoidance by sign reversal of relative growth rate, space inversion and time reversal

Masataka Shimojo, Tao Shao, Jun Tanoue, Hidetoshi Kakihara, Chiemi Sata, Hayato Fukudome, Reiko Ishiwaka, Yoki Asano, Yutaka Nakano, Manabu Tobisa, Yasuhisa Masuda

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

抄録

This study was conducted to avoid negative weight problem hypothetically by applying sign reversal of relative growth rate, space inversion and time reversal to basic growth functions with negative weight. The negative weight occurred when ± signs are given to each of three terms including weight when the square root was taken to solve a differential equation for basic growth mechanics. The positive weight was the animal body weight and the negative weight was interpreted as the feed whose absolute value was expressed in terms of the animal body weight. The results obtained were as follows. Space inversion suggested that the feed was produced at the external space of the animal body. Time reversal suggested that the feed was produced before fed to the animal. The product of sign reversal of RGR and space inversion or time reversal gave positive weight to the feed. These mathematical operations were summarized by the transformation of coordinates from (r, x, y, z, t, -W o) to (-r, -x, -y, -z, -t, W o). Thus, the animal ate the feed with positive weight. It was suggested from the present study that the negative weight problem in basic growth functions was hypothetically avoided by applying sign reversal, space inversion and time reversal.

元の言語英語
ページ(範囲)353-355
ページ数3
ジャーナルJournal of the Faculty of Agriculture, Kyushu University
54
発行部数2
出版物ステータス出版済み - 10 1 2009

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Mechanics
mechanics
Weights and Measures
Growth
animals
Body Weight
body weight

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

これを引用

Introducing viewpoints of mechanics into basic growth analysis - (XI) negative weight problem in basic growth functions and its hypothetic avoidance by sign reversal of relative growth rate, space inversion and time reversal. / Shimojo, Masataka; Shao, Tao; Tanoue, Jun; Kakihara, Hidetoshi; Sata, Chiemi; Fukudome, Hayato; Ishiwaka, Reiko; Asano, Yoki; Nakano, Yutaka; Tobisa, Manabu; Masuda, Yasuhisa.

:: Journal of the Faculty of Agriculture, Kyushu University, 巻 54, 番号 2, 01.10.2009, p. 353-355.

研究成果: ジャーナルへの寄稿記事

Shimojo, Masataka ; Shao, Tao ; Tanoue, Jun ; Kakihara, Hidetoshi ; Sata, Chiemi ; Fukudome, Hayato ; Ishiwaka, Reiko ; Asano, Yoki ; Nakano, Yutaka ; Tobisa, Manabu ; Masuda, Yasuhisa. / Introducing viewpoints of mechanics into basic growth analysis - (XI) negative weight problem in basic growth functions and its hypothetic avoidance by sign reversal of relative growth rate, space inversion and time reversal. :: Journal of the Faculty of Agriculture, Kyushu University. 2009 ; 巻 54, 番号 2. pp. 353-355.
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abstract = "This study was conducted to avoid negative weight problem hypothetically by applying sign reversal of relative growth rate, space inversion and time reversal to basic growth functions with negative weight. The negative weight occurred when ± signs are given to each of three terms including weight when the square root was taken to solve a differential equation for basic growth mechanics. The positive weight was the animal body weight and the negative weight was interpreted as the feed whose absolute value was expressed in terms of the animal body weight. The results obtained were as follows. Space inversion suggested that the feed was produced at the external space of the animal body. Time reversal suggested that the feed was produced before fed to the animal. The product of sign reversal of RGR and space inversion or time reversal gave positive weight to the feed. These mathematical operations were summarized by the transformation of coordinates from (r, x, y, z, t, -W o) to (-r, -x, -y, -z, -t, W o). Thus, the animal ate the feed with positive weight. It was suggested from the present study that the negative weight problem in basic growth functions was hypothetically avoided by applying sign reversal, space inversion and time reversal.",
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