{"created":"2023-06-20T15:15:53.118550+00:00","id":9520,"links":{},"metadata":{"_buckets":{"deposit":"9d247075-7717-437e-b579-5d5e19202be9"},"_deposit":{"created_by":3,"id":"9520","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"9520"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00009520","sets":["8:32"]},"author_link":["67911","67908","67909","67910"],"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1995-09-01","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{},{"bibliographic_title":"Research Report NIFS-Series","bibliographic_titleLang":"en"}]}]},"item_5_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"An analytical model of fast spatial flattening of the toroidal current density and q-profile at the nonlinear stage of (m=1/n=1) kink instability of a tokamak plasma is presented.  The  flattening is shown to be an essentially multi-scale phenomenon which is characterized by, at least, two magnetic Reynolds numbers.  The ordinary one, R_m, is related with a characteristic radial scale-length, while the other, R_m^ast, corresponds to a characteristic scale-length of plasma inhomogenety along the magnetic field line.  In a highly conducting plasma inside the q = 1 magnetic surface, where q value does not much differ from unity, plasma evolution is governed by a multi- scale non-ideal dynamics characterized by two well-separated magnetic Reynolds numbers, R_m and R_m^astequiv(1 - q)  R_m, where R_m^ast ~ 0(1) and R_m gg 1.  This dynamics consistently explains two seemingly contradictory features recently observed in a numerical simulation [ Watanabe et al., 1995]: i) the current profile (q-profile) is flattened in the magnetohydrodynamic time scale within the q = 1 rational surface; ii) the magnetic surface keeps its initial circular shape during this evolution.","subitem_description_type":"Abstract"}]},"item_5_source_id_10":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-633X","subitem_source_identifier_type":"ISSN"}]},"item_5_text_8":{"attribute_name":"報告書番号","attribute_value_mlt":[{"subitem_text_value":"NIFS-376"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Bazdenkov,  S.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sato,  T.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Watanabe,  K.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"The, Complexity Simulation Group","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"tokamak","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"fast current profile flattening","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"multi-scale semi-ideal MHD","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"Multi-Scale Semi-Ideal Magnetohydrodynamics of a Tokamak Plasma","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Multi-Scale Semi-Ideal Magnetohydrodynamics of a Tokamak Plasma","subitem_title_language":"en"}]},"item_type_id":"5","owner":"3","path":["32"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-02-05"},"publish_date":"2010-02-05","publish_status":"0","recid":"9520","relation_version_is_last":true,"title":["Multi-Scale Semi-Ideal Magnetohydrodynamics of a Tokamak Plasma"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-20T20:47:01.764468+00:00"}