hamon
Online ISSN : 1884-636X
Print ISSN : 1349-046X
ISSN-L : 1349-046X
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Displaying 1-2 of 2 articles from this issue
  • Norifumi L. Yamada, Takayoshi Ito, Nobuo Okazaki, Miho Igarashi
    2021 Volume 31 Issue 4 Pages 156-161
    Published: November 10, 2021
    Released on J-STAGE: December 01, 2022
    JOURNAL FREE ACCESS

    On 2016, we started a project to correct and analyze research achievements obtained with J-PARC MLF. Though there was a list of the achievement, it was not applicable to data processing for the analysis because the data format was NOT unified and dependent on the person. Hence, we define a sorting policy of the achievements first and re-collect the achievement even though it was already existing. Next, the achievements were compared with those of other facilities available online based on the quantity and quality analysis with the same index. Finally, the list and analysis results of the achievements of the MLF facility is now open in the web site and being updated every half a year.

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  • Nobuharu Kimura, Kazumi Sakai, Yusuke Ayame, Yoshimu Iwanami, Yoshihir ...
    2021 Volume 31 Issue 4 Pages 162-165
    Published: November 10, 2021
    Released on J-STAGE: December 01, 2022
    JOURNAL FREE ACCESS

    Neutron imaging was used for the non-destructive observation of grease fluidity inside ball bearings after rotation testing. Two types of greases with different energy-saving properties were studied. Imaging revealed that adherence of the grease to the rolling elements varied depending on the grease type. This relates to the grease’s energy-saving performance, since adherence of the grease to the rolling elements affects resistance as the bearing rotates. Neutron imaging is a unique technology that enables non-destructive observation of grease fluidity inside bearings and could be an effective tool for developing future energy-saving greases.

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