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  <Article>
    <Journal>
      <PublisherName>岡山大学大学院教育学研究科</PublisherName>
      <JournalTitle>Acta Medica Okayama</JournalTitle>
      <Issn>1883-2423</Issn>
      <Volume>179</Volume>
      <Issue/>
      <PubDate PubStatus="ppublish">
        <Year>2022</Year>
        <Month/>
      </PubDate>
    </Journal>
    <ArticleTitle>手びきのこぎりびきによって生じる木材のにおいについて</ArticleTitle>
    <FirstPage LZero="delete">129</FirstPage>
    <LastPage>135</LastPage>
    <Language>EN</Language>
    <AuthorList>
      <Author>
        <FirstName EmptyYN="N">Seiji</FirstName>
        <LastName>Hirata</LastName>
        <Affiliation>Division of Life, Health and Sports Education, Graduate School of Education, Okayama University</Affiliation>
      </Author>
      <Author>
        <FirstName EmptyYN="N">Tomoya</FirstName>
        <LastName>Akai</LastName>
        <Affiliation>BANDAI CO., LTD.</Affiliation>
      </Author>
      <Author>
        <FirstName EmptyYN="N">Shuji</FirstName>
        <LastName>Nakahara</LastName>
        <Affiliation>Okayama Ishii Junior High School</Affiliation>
      </Author>
      <Author>
        <FirstName EmptyYN="N">Tatsuya</FirstName>
        <LastName>Kajimoto</LastName>
        <Affiliation>Okayama City Sonan Public Hall</Affiliation>
      </Author>
    </AuthorList>
    <PublicationType/>
    <ArticleIdList>
      <ArticleId IdType="doi">10.18926/bgeou/63247</ArticleId>
    </ArticleIdList>
    <Abstract>本研究の目的は，ヒノキ集成材で製作された木製品のにおいと，その製品に使用された板材を被験者が手びきのこぎりびきする際に生じるにおいとについて，測定機による検査と官能検査とで比較することである。被験者は大学生と中学生とした。測定機での検査では，ほとんどの被験者ののこぎりびきにおいて測定されたにおいの値が木製品のそれより大変大きかった。板材の切断に要する時間が短いほどにおいの値が大きかった。官能検査でにおいの強度と快・不快度を調べると，切断に要する時間が短いほどにおいの強度が大きくなり，においの強度が大きいと快度が大きくなった。のこぎりびき中に大学生が感じたにおいの強度は，木製品各部のそれより大きかった。ヒノキ集成材を手びきのこぎりびきして生じるにおいの強度の大きさが認識された。</Abstract>
    <CoiStatement>No potential conflict of interest relevant to this article was reported.</CoiStatement>
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      <Object Type="keyword">
        <Param Name="value">木材</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">におい</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">手びきのこぎりびき</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">臭気レベル値</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">においの強度</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">快・不快度</Param>
      </Object>
    </ObjectList>
    <ReferenceList/>
  </Article>
  <Article>
    <Journal>
      <PublisherName>Springer</PublisherName>
      <JournalTitle>Acta Medica Okayama</JournalTitle>
      <Issn>1435-0211</Issn>
      <Volume>66</Volume>
      <Issue/>
      <PubDate PubStatus="ppublish">
        <Year>2020</Year>
        <Month/>
      </PubDate>
    </Journal>
    <ArticleTitle>Color measurements according to three sections of wood</ArticleTitle>
    <FirstPage LZero="delete"/>
    <LastPage/>
    <Language>EN</Language>
    <AuthorList>
      <Author>
        <FirstName EmptyYN="N">Seiji</FirstName>
        <LastName>Hirata</LastName>
        <Affiliation>Okayama University Graduate School of Education</Affiliation>
      </Author>
      <Author>
        <FirstName EmptyYN="N">Saori</FirstName>
        <LastName>Hayashi</LastName>
        <Affiliation>People Software Corporation</Affiliation>
      </Author>
      <Author>
        <FirstName EmptyYN="N">Masamitsu</FirstName>
        <LastName>Ohta</LastName>
        <Affiliation>Former Graduate School of Agricultural and Life Sciences, The University of Tokyo</Affiliation>
      </Author>
    </AuthorList>
    <PublicationType/>
    <ArticleIdList>
      <ArticleId IdType="doi"/>
    </ArticleIdList>
    <Abstract>The purpose of this study was to measure each color of three sections of wood with instruments, and to examine whether there were differences between each color of three sections. The total number of tree species measured was 60, with the same number of conifers and broadleaf trees. A test piece, which was a cube with one side of 34 mm, was prepared for each tree species. End grain, edge grain, bark side and pith side of each test piece were flattened by a hand planer. Then, lightness L* and hue/saturation (a*, b*) in the L*a*b* color space were measured with a spectrophotometer. The results showed that the end grain had a lower L* compared to the other planes. The end grain was reddish and yellowish because it had a large a* and small b*. When chroma C* and hue angle h in the L*C*h color space were calculated from a* and b*, the end grain had a small dullness with less vividness because C* was smaller than the other planes. L*, a*, b*, C* and h on the other planes excluding the end grain were almost equal for each plane. Furthermore, it was found that the plane whose lightness L* had the strongest correlation with the density of the test piece was the end grain. Therefore, the correlation diagrams between the density, average of annual ring width, and L*of the end grain of each test piece were shown.</Abstract>
    <CoiStatement>No potential conflict of interest relevant to this article was reported.</CoiStatement>
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      <Object Type="keyword">
        <Param Name="value">Three sections of wood</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">Glossiness</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">Color measurement</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">L*a*b* color space</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">L*C*h color space</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">Density</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">Average of annual ring width</Param>
      </Object>
    </ObjectList>
    <ReferenceList/>
  </Article>
  <Article>
    <Journal>
      <PublisherName>岡山大学大学院教育学研究科</PublisherName>
      <JournalTitle>Acta Medica Okayama</JournalTitle>
      <Issn>1883-2423</Issn>
      <Volume>144</Volume>
      <Issue/>
      <PubDate PubStatus="ppublish">
        <Year>2010</Year>
        <Month/>
      </PubDate>
    </Journal>
    <ArticleTitle>黒色筐体ディスプレイにおける木材の視覚効果</ArticleTitle>
    <FirstPage LZero="delete">1</FirstPage>
    <LastPage>6</LastPage>
    <Language>EN</Language>
    <AuthorList>
      <Author>
        <FirstName EmptyYN="N">Seiji</FirstName>
        <LastName>Hirata</LastName>
        <Affiliation/>
      </Author>
      <Author>
        <FirstName EmptyYN="N">Chiharu</FirstName>
        <LastName>Hieshima</LastName>
        <Affiliation/>
      </Author>
      <Author>
        <FirstName EmptyYN="N">Kazumichi</FirstName>
        <LastName>Senoo</LastName>
        <Affiliation/>
      </Author>
    </AuthorList>
    <PublicationType/>
    <ArticleIdList>
      <ArticleId IdType="doi">10.18926/bgeou/40061</ArticleId>
    </ArticleIdList>
    <Abstract>本研究は,大学生･大学院生を対象にして,筐体がプラスチックで黒色のディスプレイ画面外枠に木材を張り付けたディスプレイを使用したときに目の疲労が減少するかどうか等を官能調査することを目的とした｡普通のプラスチックディスプレイと木材を張り付けたディスプレイを比較した結果を次に示す｡（1）木材を張り付けたディスプレイは目と頭の疲労が少ないと,回答する者が多かった｡（2）木材を張り付けたディスプレイは,居住環境面のみならず教育的価値面においてもよいイメージであった｡しかしながら,集中できるのは普通のプラスチックディスプレイであると回答する者が多かった｡</Abstract>
    <CoiStatement>No potential conflict of interest relevant to this article was reported.</CoiStatement>
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      <Object Type="keyword">
        <Param Name="value">VDT作業</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">目</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">ディスプレイ</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">プラスチック</Param>
      </Object>
      <Object Type="keyword">
        <Param Name="value">木材</Param>
      </Object>
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    <ReferenceList/>
  </Article>
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