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The effect of polypropylene film on the measurement of the resonance frequency in the Japanese pear \u0027Kosui\u0027 was also determined. The frequency of second resonance (f_2) of the fruit at harvest time measured by the fruit firmness measurement device (KN_α-LA1) was 608 Hz, the elasticity index (Edf_2) calculated from the f_2 and the fruit weight (m) was 18×106, and the elasticity index (Emf_2) calculated from the f_2 and the diameter (d) was 30.5×106.The resonance frequencies of the fruit at harvest time measured by the nondestructive firmness measurement device (Vp-2) were 594 Hz (f_2), 893 Hz (f_3; third resonance) and 1,128 Hz (f_4; fourth resonance), respectively. Elasticity indices (Emf_n) calculated from the fn and m were 17.3×106 (Emf_2), 39.1×106 (Emf_3) and 62.4 ×106 (Emf_4), respectively. Elasticity indices (Edf_n) that were calculated from the fn and d were 28.6×106 (Edf_2), 63.7×106 (Edf_3) and 103×106 (Edf_4), respectively. 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  1. 0 資料タイプ別
  2. 03 紀要論文
  1. 070 農学部
  2. 20 紀要
  3. 01 新潟大学農学部研究報告
  4. 第62巻第2号

ニホンナシ‘幸水’におけるポリプロピレンフィルムが共鳴周波数の計測に及ぼす影響

http://hdl.handle.net/10191/13093
http://hdl.handle.net/10191/13093
ef0f9bc5-d55b-42ff-aeac-8b948fd0ae69
名前 / ファイル ライセンス アクション
62(2)_89-95.pdf 62(2)_89-95.pdf (1.2 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2010-07-14
タイトル
タイトル ニホンナシ‘幸水’におけるポリプロピレンフィルムが共鳴周波数の計測に及ぼす影響
タイトル
言語 en
タイトル ニホンナシ‘幸水’におけるポリプロピレンフィルムが共鳴周波数の計測に及ぼす影響
言語
言語 jpn
キーワード
主題Scheme Other
主題 弾性指標
キーワード
主題Scheme Other
主題 フィルム包装
キーワード
主題Scheme Other
主題 非破壊法
キーワード
主題Scheme Other
主題 熟度
キーワード
主題Scheme Other
主題 共鳴周波数
キーワード
主題Scheme Other
主題 elasticity index
キーワード
主題Scheme Other
主題 film packaging
キーワード
主題Scheme Other
主題 nondestructive method
キーワード
主題Scheme Other
主題 resonance frequency
キーワード
主題Scheme Other
主題 ripeness
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
その他のタイトル
その他のタイトル Effect of Polypropylene Film on Measurement of Resonance Frequency in Japanese Pear 'Kosui'
著者 知野, 秀次

× 知野, 秀次

WEKO 163170

知野, 秀次

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太田, 祐樹

× 太田, 祐樹

WEKO 163171

太田, 祐樹

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黒坂, 俊

× 黒坂, 俊

WEKO 163172

黒坂, 俊

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齋藤, 洋太郎

× 齋藤, 洋太郎

WEKO 163173

齋藤, 洋太郎

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大塚, 伸吾

× 大塚, 伸吾

WEKO 163174

大塚, 伸吾

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坂井, 優

× 坂井, 優

WEKO 163175

坂井, 優

Search repository
二木, 明日香

× 二木, 明日香

WEKO 163176

二木, 明日香

Search repository
児島, 清秀

× 児島, 清秀

WEKO 68

児島, 清秀

Search repository
著者別名
識別子 163178
識別子Scheme WEKO
姓名 Chino, Shuji
著者別名
識別子 163179
識別子Scheme WEKO
姓名 Ohta, Yuuki
著者別名
識別子 163180
識別子Scheme WEKO
姓名 Kurosaka, Shun
著者別名
識別子 163181
識別子Scheme WEKO
姓名 Saito, Yotaro
著者別名
識別子 163182
識別子Scheme WEKO
姓名 Ohtsuka, Shingo
著者別名
識別子 163183
識別子Scheme WEKO
姓名 Sakai, Yu
著者別名
識別子 163184
識別子Scheme WEKO
姓名 Futatsugi, Asuka
著者別名
識別子 68
識別子Scheme WEKO
姓名 Kojima, Kiyohide
抄録
内容記述タイプ Abstract
内容記述 本研究は、果実硬度測定装置(KN_α-LA1)ならびに非破壊硬度測定装置(Vp-2型)でニホンナシ‘幸水’の共鳴周波数を測定した。さらに、フィルム包装が果実の共鳴周波数に及ぼす影響を調査した。非破壊硬度測定装置(Vp-2型)で計測した収穫時の果実の共鳴周波数は、それぞれ、594Hz(f_2)、893Hz(f_3)および1,128Hz(f_4)あった。f_2と果実重から算出した弾性指標Emf_2は17.3(×106)、弾性指標Emf_3は39.1(×106)および弾性指標Emf_4は62.4(×106)であった。f_2と直径から算出した弾性指標Edf_2は28.6(×106)、弾性指標Edf_3は63.7(×106)および弾性指標Edf_4は103(×106)であった。その後、共鳴周波数および弾性指標は日数の経過ともに低下した。フィルム包装した果実の共鳴周波数は無包装の果実と同様であり、フィルムは共鳴周波数の計測に影響しないことが明らかになった。さらに、各共鳴周波数から算出した弾性指標Edf_n はEmf_n と相関があり、相関係数は有意に高かった。得られた回帰式から、弾性指標Edf_n からEmf_n への換算が可能となった。
抄録
内容記述タイプ Abstract
内容記述 In this study, the resonance frequency of the Japanese pear 'Kosui' was measured by a fruit firmness measurement device (KN_α-LA1) and a nondestructive firmness measurement device (Vp-2). The effect of polypropylene film on the measurement of the resonance frequency in the Japanese pear 'Kosui' was also determined. The frequency of second resonance (f_2) of the fruit at harvest time measured by the fruit firmness measurement device (KN_α-LA1) was 608 Hz, the elasticity index (Edf_2) calculated from the f_2 and the fruit weight (m) was 18×106, and the elasticity index (Emf_2) calculated from the f_2 and the diameter (d) was 30.5×106.The resonance frequencies of the fruit at harvest time measured by the nondestructive firmness measurement device (Vp-2) were 594 Hz (f_2), 893 Hz (f_3; third resonance) and 1,128 Hz (f_4; fourth resonance), respectively. Elasticity indices (Emf_n) calculated from the fn and m were 17.3×106 (Emf_2), 39.1×106 (Emf_3) and 62.4 ×106 (Emf_4), respectively. Elasticity indices (Edf_n) that were calculated from the fn and d were 28.6×106 (Edf_2), 63.7×106 (Edf_3) and 103×106 (Edf_4), respectively. Resonance frequencies and elasticity indices of the fruit decreased with the increase in time after harvest. Resonance frequencies of the film-packaged fruit were similar to the non-packaged fruit, and it was clarified that the film did not influence the measurement of the resonance frequency. Elasticity indices (Edf_n) correlated with elasticity indices (Emf_n), and correlation coefficients were significantly high. Conversion from elasticity index (Edf_n) to elasticity indices (Emf_n) became possible from the obtained regression.
書誌情報 新潟大学農学部研究報告
en : 新潟大学農学部研究報告

巻 62, 号 2, p. 89-95, 発行日 2010-03
出版者
出版者 新潟大学農学部
ISSN
収録物識別子タイプ ISSN
収録物識別子 03858634
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00183393
著者版フラグ
値 publisher
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