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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Sensing Nonlinear Viscoelastic Constitutive Parameters with a Geometrically Nonlinear Beam: Modeling and Simulation

Wu, Yanzhang 02 September 2020 (has links)
In this thesis, we present a sensor model comprised of a geometrically nonlinear beam coupled with a nonlinear viscoelastic Pasternak foundation via a distributed system of compliant elements. The governing equations of the system are obtained. By posing an inverse problem, the model is used to simulate the estimation of coupled substrates' material (constitutive) parameters. In the inverse problem, beam deformations are considered as measured parameters, and therefore an eventual hardware implementation would require measurements of these quantities. Different case studies are simulated to assess the robustness and applicability of this sensor model.
2

Study on Proton-Electron Coupling and Mixed-Conducting Behaviors Based on Metal Dithiolene Complexes / 金属ジチオレン錯体におけるプロトン-電子相関系及びプロトン-電子混合伝導体に関する研究

Kimura, Yojiro 23 March 2022 (has links)
京都大学 / 新制・課程博士 / 博士(理学) / 甲第23721号 / 理博第4811号 / 新制||理||1689(附属図書館) / 京都大学大学院理学研究科化学専攻 / (主査)教授 北川 宏, 教授 吉村 一良, 教授 竹腰 清乃理 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DGAM
3

DYN3D version 3.2 - code for calculation of transients in light water reactors (LWR) with hexagonal or quadratic fuel elements - description of models and methods -

Grundmann, Ulrich, Rohde, Ulrich, Mittag, Siegfried, Kliem, Sören January 2005 (has links)
DYN3D is an best estimate advanced code for the three-dimensional simulation of steady-states and transients in light water reactor cores with quadratic and hexagonal fuel assemblies. Burnup and poison-dynamic calculations can be performed. For the investigation of wide range transients, DYN3D is coupled with system codes as ATHLET and RELAP5. The neutron kinetic model is based on the solution of the three-dimensional two-group neutron diffusion equation by nodal expansion methods. The thermal-hydraulics comprises a one- or two-phase coolant flow model on the basis of four differential balance equations for mass, energy and momentum of the two-phase mixture and the mass balance for the vapour phase. Various cross section libraries are linked with DYN3D. Systematic code validation is performed by FZR and independent organizations.
4

高輝度・高解像度電子顕微鏡観察YAGスクリ-ンに関する基礎研究

日比野, 倫夫, 丹司, 敬義, 花井, 孝明, 田中, 成泰, 木村, 啓子 03 1900 (has links)
科学研究費補助金 研究種目:基盤研究(B)(2) 課題番号:07455036 研究代表者:日比野 倫夫 研究期間:1995-1996年度

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