JOURNAL of the JAPANESE SOCIETY of AGRICULTURAL MACHINERY
Online ISSN : 1884-6025
Print ISSN : 0285-2543
ISSN-L : 0285-2543
Search
Advanced search
OR
Browse
Search
Volume 74, Issue 3
Displaying 1-14 of 14 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
ESSAY
SPECIAL EDITION
TECHNO-TOPICS
RESEARCH ACTIVITIES
PAPERS (Articles)
RESEARCH PAPER
  • Study on Applicability of Finite Element Method for Mechanical Design of a Small Ditch-cutting Side-disk
    Hirofumi OHBA, Takashi OKAYASU, Haruki TERAO, Koichiro FUKAMI, Teruo W ...
    2012 Volume 74 Issue 3 Pages 207-212
    Published: May 01, 2012
    Released on J-STAGE: February 20, 2014
    DOIhttps://doi.org/10.11357/jsam.74.207
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The validity of three dimensional finite element analyses for the mechanical design of a small ditch-cutting side-disk was investigated. The analytical model was created using a three dimensional finite element mesh with 8-node hexahedral elements. The loading test apparatus was developed for the real side-disk in order to evaluate the validity and accuracy of the proposed model, and the strain variation of the disk and frame was measured at the prescribed loading levels. A comparison between the analytical and measured strain revealed that the predicted analytical strain was less than the measured strain, whereas both the deformation patterns were in good agreement. In addition, the effects of specification changes were investigated via sensitivity analyses for the loading angle to the disk and for the stiffness and shape of the hub section.
    View full abstract
    Download PDF (481K)
TECHNICAL PAPERS
  • Development of an Animal Feed Rice Grinder
    —Its Effectiveness in Grinding Brown Rice and Unhulled Rice—
    Kazuto SHIGETA, Tetsuya ISHIKAWA
    2012 Volume 74 Issue 3 Pages 213-219
    Published: May 01, 2012
    Released on J-STAGE: February 20, 2014
    DOIhttps://doi.org/10.11357/jsam.74.213
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Cattle and pigs cannot easily digest unprocessed rice provided as animal feed; therefore, we have developed a machine that efficiently grinds brown or unhulled rice. The grinder employs the double roll mill method wherein 2 rolls with V-shaped surface grooves that fit together are rotated in directions opposite to each other. As the roll clearance reduced, the extent of grinding increased, while the processing efficiency reduced. For unhulled rice at the higher ripening stage, the grain diameters were reduced. In addition, for unhulled rice, the diameters of large-sized grains were also reduced. For brown rice subjected to a roll clearance of 1.1mm, the processing efficiency was 525kg/h, which was higher than the theoretical value. The total cost of the testing machine was approximately 1/6th that of the typical high-temperature high-pressure vapor roll crushers employed in medium-scale pig farms.
    View full abstract
    Download PDF (599K)
  • Labor Saving Technology for Planting Chinese Yams Using a Seed Tuber Planter (Part 2)
    Mitsuhiko KATAHIRA, Hayato SHINDO, Ken-etsu UEDA, Motoi SUZUKI, Yukiya ...
    2012 Volume 74 Issue 3 Pages 220-225
    Published: May 01, 2012
    Released on J-STAGE: February 20, 2014
    DOIhttps://doi.org/10.11357/jsam.74.220
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A seed tuber planter and fertilizer distributor produced the new device, which simultaneously performs ridging, fertilizing, planting, mulching. Fertilization accuracy was 92-94% in block A and 71-104% in block B using a standard fertilizer application rate. The fertilizer sample placement was 58% in the ridge center area and 61% in the ridge top area. The amounts of nitrate in ridges were equivalent in blocks A and B. However, it had decreased in row spacing. The product yield and product rate, component ratio of the classified standard of blocks A and B were the same as those of the conventional device. This multiple-function device used for block B is effective for improving Chinese yam production systems.
    View full abstract
    Download PDF (341K)
  • The Influence of Heating and Humidifying by Humidified Air on GABA Generation and Quality in Paddy
    Hidenori MIZUNO, Takeshi FUKUMORI, Kousei LIU, Yasuhiro SASAKI, Shinya ...
    2012 Volume 74 Issue 3 Pages 226-233
    Published: May 01, 2012
    Released on J-STAGE: February 20, 2014
    DOIhttps://doi.org/10.11357/jsam.74.226
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    This experiment measured the quality, taste and GABA content of paddy rice, brown rice, milled rice, and rinse-free rice processed after applying various amounts of heat and moisture, with a goal of developing an efficient method to maximize functional components present in rice. The results show that the largest amount of GABA is generated by applying a constant temperature and humidity to half-dried and normally-dried paddy at the beginning of the GABA generation process. The difference in quality between rice tested under these conditions and the control rice in terms of grain cracks, broken grains and other criteria was negligible. In the sensory evaluation, the cooked rice showed similar qualities to the control rice in terms of stickiness, shininess, and other characteristics, but was found to be inferior in terms of odor. The odor derives from the ‘grassy and raw smell" of husk, an issue which must be solved in the future.
    View full abstract
    Download PDF (437K)
  • Development of GABA Enriching Equipment for Brown Rice by Heating and Humidifying of Moist Air
    Hidenori MIZUNO, Takeshi FUKUMORI, Kousei LIU, Yasuhiro SASAKI, Shinya ...
    2012 Volume 74 Issue 3 Pages 234-243
    Published: May 01, 2012
    Released on J-STAGE: February 20, 2014
    DOIhttps://doi.org/10.11357/jsam.74.234
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The authors have developed industrial scale Brown Rice GABA Enriching Systems with capacities of 250kg and 1ton which use an air heating and humidifying process. The heating and humidifying section uses a continuous flow system developed by Louisiana State University, from which the brown rice is consistently discharged at the bottom driving section, and then returned to the top via pneumatic conveyor. The air temperature and humidity in the humidifying and drying processes are both controlled by the proportion of saturated steam (130 to 140 degrees Celsius) generated by a steam mixer and heated air from a heat exchanger. Both systems can produce rice with a high GABA content equivalent to that of germinated brown rice, while maintaining a taste similar to unprocessed rice. The new system also enables high milling and rinse free rice processing yield due to dramatically reduced grain cracking, as well as reducing the time necessary for the processing. Furthermore, the processing cost is largely reduced by eliminating waste water discharge systems and bacteria elimination systems, by partially recirculating the humidifying and drying air, and also by sharing the same component for multiple purposes.
    View full abstract
    Download PDF (534K)
SHORT REPORT
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top