Journal of the Society of Agricultural Structures, Japan
Online ISSN : 2186-0122
Print ISSN : 0388-8517
ISSN-L : 0388-8517
Volume 13, Issue 1
Displaying 1-7 of 7 articles from this issue
  • Abolghasemnejad Soghara, Hiroshi MORISHIMA, Akira HOSOKAWA
    1982 Volume 13 Issue 1 Pages 3-9
    Published: December 25, 1982
    Released on J-STAGE: September 05, 2011
    JOURNAL FREE ACCESS
    Formulation of a model receiving system of the packingouse to determine the receiving area size was carried out using Monte-Carlo simulation method.
    By changing the parameter values and determining the probability function, the formulated model could be applied for most packinghouses having different sizes and different methods of packing.
    Controlled and non-controlled arrival system were compared also.
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  • Abolghasemnejad Soghara, Hiroshi Morishima, Akira Hosokawa
    1982 Volume 13 Issue 1 Pages 10-16
    Published: December 25, 1982
    Released on J-STAGE: September 05, 2011
    JOURNAL FREE ACCESS
    One method to predict the cold storage capacity for fresh fruit according to the present and future requirement was proposed. The model was experimented and validated using the data obtained from Yomase packinghouse in Nagano prefecture, and the future requirement of the capacity was estimated by an application of the model. This model should be also applicable under present and future conditions of Iran after some modification.
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  • Shigeru YOSIZAKI, Tomohiro TAKIGAWA, Takaaki MAEKAWA, Shingo YAMAZAWA
    1982 Volume 13 Issue 1 Pages 17-20
    Published: December 25, 1982
    Released on J-STAGE: September 05, 2011
    JOURNAL FREE ACCESS
    Experimental study was carried out to assess the danger of the dust explosion hazard in farm cooperative paddy drying, processing, and storage facilities in Japan.
    Physical and chemical properties and explosibility of the deposited dust in such facilities were reported in previous article (1). Minimum ignition temperature and lower explosive limits of the deposited dusts, measured according to the U. S. Bureau of Mines, fall in the range of 793-853K, and 200-300g/m3. The results reported in the two articles indicate that the facilities are in the danger of dust explosion.
    Good house-keeping and elimination of ignition sources should be enforced in the first place.
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  • On the outside diameter 114mm pipe
    Minoru ITO, Kazuo IWANE
    1982 Volume 13 Issue 1 Pages 21-28
    Published: December 25, 1982
    Released on J-STAGE: September 05, 2011
    JOURNAL FREE ACCESS
    This study was carried out with the purpose to estimate the exhaust air temperature changed by passing through the pipe of the soil-air heat exchange system. It was clarified that the exhaust air temperature could be calculated using the established mathematical model under the boundary conditions which were surface soil temperature, soil temperature at the depths and the intake air temperature. Then, the results of the simulation were discussed in comparison with the experiments.
    As the result, the values of which were the exhaust air temperature, the inner wall temperature of the heat exchange pipe and soil temperature obtained from the simulation were agreed with the experimental values. It was concluded that the mathematical model was useful for the soil-air heat exchange system.
    As for the technical problem of soil-air heat exchange system, the effects of materials and the length of heat exchange pipe were, furthermore, discussed using the above model. Among them, it was became obvious that the function of the soil-air heat exchange system, even using the pipe with the low thermal conductivity, was depending on the method that made the contact thermal resistance low when the pipe was buried, and was not so largely depending on the materials chosen. Moreover, it was concluded from the result of simulation that the horizontal buried pipe was not necessary so long, but had better have a unit made of about 10m length pipe.
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  • Kazuhiro NAKANO, Takaaki MAEKAWA, Shingo YAMAZAWA
    1982 Volume 13 Issue 1 Pages 29-34
    Published: December 25, 1982
    Released on J-STAGE: September 05, 2011
    JOURNAL FREE ACCESS
    This paper discusses moisture content and temperature of maize which has just arrived in Japan, and the possibility of the temperature rising abnormally due to the corn condition. The relationship between tenperature and moisture content of the maize was analyzed statistically using scatter diagram, coefficient of correlation, F-test, T-test and contour map. There was a positive correlation between temperature and moisture content. Moisture content of maize from Thailand had very wide ranges (12.4-21.6% (w.b.)). There would be a possibility of temperature rising dut to the high moisture content.
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  • Contents of Facility and Operating Results of Heating Devices
    Eiji BEKKI, Yoshimi IWASAKI
    1982 Volume 13 Issue 1 Pages 35-42
    Published: December 25, 1982
    Released on J-STAGE: September 05, 2011
    JOURNAL FREE ACCESS
    Download PDF (880K)
  • Progress of Temperature and Humidity in Greenhouse
    Eiji BEKKI, Yoshimi IWASAKI
    1982 Volume 13 Issue 1 Pages 43-53
    Published: December 25, 1982
    Released on J-STAGE: September 05, 2011
    JOURNAL FREE ACCESS
    Download PDF (1227K)
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