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Volume 11 (1973)
- Issue 4 Pages 141-
- Issue 3 Pages 103-
- Issue 2 Pages 47-
- Issue 1 Pages 1-
Volume 11, Issue 4
Displaying 1-5 of 5 articles from this issue
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Chuhei YAMAGUCHI, Hiroshi TAKAHASHI1973 Volume 11 Issue 4 Pages 141-145
Published: December 31, 1973
Released on J-STAGE: June 22, 2010
JOURNAL FREE ACCESSThe heart rate, respiratory rate and heat production in unrestrained mice in accordance with changes in environmental temperature were investigated for an environmental temperature range of 10°C to 30°C.
The heart rate and respiratory rate in the mice increased in the cold environments and decreased in the hot environments. The correlations between the environmental temperature and heart rate, and environmental temperature and respiratory rate were significant at the 1% level. There were significant differences in analyses of variance on the heart rate and respiratory rate in mice exposed to various environmental temperatures. Also, they were significant at the 5% level among almost every environment which differed by 3°C and were significant at the 1 % level among each environment which differed by 6°C or more.
The heat production in mice increased in the cold environments below 25°C, but it was almost same between 25°C and 30°C. The correlation between environmental temperature and heat production was significant at the 1 % level. It was recognized that there were differences in heat production among various environmental temperatures. They were significant at the 5% level between 10°C and 20°C, and 15°C and 25°C, but were not significant among the environments which differed by 5°C.View full abstractDownload PDF (625K) -
Design of Process ControllerShu FUNADA, Yasushi HASHIMOTO, Kenji OMASA, Junichiro TOYOZUMI1973 Volume 11 Issue 4 Pages 147-155
Published: December 31, 1973
Released on J-STAGE: June 22, 2010
JOURNAL FREE ACCESSFor analysis and synthesis of D.D.C. system for phytotronics, three sub-system; process, computer and process-controller, should be examined.
In this paper, design and characteristics of processcontroller which is composed of interface between computer and process are made clear.
And D.D.C. system which has a temperature-control algorithm upon characteristics of process in the previous paper and upon characteristics of process-controller in this paper is investigated.
As a result, the settling time of cooling on-off in D.D.C. upon f eedf orward method is one-third as large as that of cooling on-off in feedback control.View full abstractDownload PDF (5986K) -
Yotaro TSUKAMOTO, Susumu YAZAWA1973 Volume 11 Issue 4 Pages 157-164
Published: December 31, 1973
Released on J-STAGE: June 22, 2010
JOURNAL FREE ACCESSFactors affecting the effect of cytokinin on breaking the dormancy of gladiolus (cv. Hector) corm were examined. Soaking dormant corms in 20 ppm benzyladenine solution for 24 hr brought about 100% sprouting within 2 to 3 weeks. The most favourable temperature during or after soaking was 30°C.
Benzyladenine treatment resulted in the loss of apical dominance and inhibition of root growth. The number of sprouted buds was reduced and the development of root was promoted, when 10 ppm NAA was added to the benzyladenine solution.
Resoaking in 100 ppm gibberellin solution 3 days after the primary soaking in benzyladenine resulted in a good growth of shoot and root, while 100 ppm gibberellin alone gave no sprouting and only a slight growth of root.View full abstractDownload PDF (2336K) -
Kadzunori TATSUYAMA, Shigeto YOSHINO, Hiromi TANAKA1973 Volume 11 Issue 4 Pages 165-167
Published: December 31, 1973
Released on J-STAGE: June 22, 2010
JOURNAL FREE ACCESSDownload PDF (2103K) -
Volume 10-11 (1972-1973)1973 Volume 11 Issue 4 Pages 173-178
Published: December 31, 1973
Released on J-STAGE: June 22, 2010
JOURNAL FREE ACCESSDownload PDF (592K)
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