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Studies on Dynamics of Microsphere Suspensions Probed by Dynamic Ultrasound Scattering Techniques
http://hdl.handle.net/10212/2381
http://hdl.handle.net/10212/2381e33fb820-3b76-40e6-92a7-94fec46b77b1
| 名前 / ファイル | ライセンス | アクション |
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全文 (20.0 MB)
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内容・審査結果の要旨 (162.0 KB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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| 公開日 | 2019-01-15 | |||||||||
| タイトル | ||||||||||
| タイトル | Studies on Dynamics of Microsphere Suspensions Probed by Dynamic Ultrasound Scattering Techniques | |||||||||
| 言語 | en | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | 動的超音波散乱法によるマイクロ微粒子懸濁液のダイナミクスに関する研究 | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
杉田, 一樹
× 杉田, 一樹
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Ultrasound | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Microparticle | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Sedimentation | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Velocity fluctuations | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Diameter distribution | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Suspensions | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Particle sizing in highly turbid suspension is one of the most challenging and important subjects in material science. Dynamic ultraSound Scattering (DSS) technique utilizing ultrasound pulse allows us to achieve such demands. Since the speed of ultrasound wave is much slower than that of light, the time evolution of the ultrasound scattering amplitudes and phase can be analyzed. In the previous studies, the advantages were fully utilized, and the diameter and the inter-particle interactions in suspension were successfully evaluated by analyzing the particle velocity. Further, visualization of velocity field was enabled by the phase lock-in analysis. As a result, particle motion as a function of the position and time was evaluated to understand the complex fluid phenomena. For example, cooperative motion of settling particles was successfully observed as a velocity-field image. In order to apply this technique further, I focused to the following four topics: (1) investigation of dynamics of submicron and nano-particles, (2) incident pulse effect on particle motion, (3) sedimentation velocity fluctuations for charged particles, (4) determination of diameter distribution with a novel approach. Through this study, the detectable size was now extended down to nanometer scale. Also, the dynamics of submicron particles exhibiting Brownian motion and sedimentation was investigated in detail. | |||||||||
| 言語 | en | |||||||||
| 日付 | ||||||||||
| 日付 | 2017-03-24 | |||||||||
| 日付タイプ | Issued | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||
| 資源タイプ | doctoral thesis | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 学位授与番号 | ||||||||||
| 学位授与番号 | 甲第824号 | |||||||||
| 学位名 | ||||||||||
| 言語 | ja | |||||||||
| 学位名 | 博士（工学） | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 2017-03-24 | |||||||||
| 学位授与機関 | ||||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||||
| 学位授与機関識別子 | 14303 | |||||||||
| 言語 | ja | |||||||||
| 学位授与機関名 | 京都工芸繊維大学 | |||||||||
