{"_buckets": {"deposit": "fd60a7a0-319e-488d-8d3c-3f05f9efff3b"}, "_deposit": {"id": "33470", "owner": "1", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "33470"}, "status": "published"}, "_oai": {"id": "oai:repository.dl.itc.u-tokyo.ac.jp:00033470", "sets": []}, "author_link": ["130727", "130726"], "item_4_alternative_title_1": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "\u5730\u9707\u6ce2\u52d5\u306e\u5468\u6ce2\u6570\u5206\u6790(2)"}]}, "item_4_biblio_info_7": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1968-02-10", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "4", "bibliographicPageEnd": "995", "bibliographicPageStart": "973", "bibliographicVolumeNumber": "45", "bibliographic_titles": [{"bibliographic_title": "\u6771\u4eac\u5927\u5b78\u5730\u9707\u7814\u7a76\u6240\u5f59\u5831 = Bulletin of the Earthquake Research Institute, University of Tokyo"}]}]}, "item_4_description_13": {"attribute_name": "\u30d5\u30a9\u30fc\u30de\u30c3\u30c8", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_4_description_5": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "A seismic analyzing system of analogue type is constructed for the study of teleseismic signals which are recorded by magnetic tape recorders. The system is useful for 1) increasing the detectability of arriving seismic signals, 2) detecting mantle surface waves and measuring their arrival times, and 3) obtaining the frequency spectra of body waves of distant earthquakes. The results of the analysis of the data obtained by the observations since April, 1966 can be summarized as follows. 1) High-pass and band-pass filterings are useful for detecting weak teleseismic P wave signals. 2) The low-pass filtering is also useful for detecting long-period mantle surface waves masked by short-period crustal surface waves and interfering waves, etc.. The arrival time of the surface waves can be measured by the use of the double filtering method. 3) The output signals of the multi-channel band-pass filters give the amplitude spectra of seismic waves, from which the relation between the predominant period of P waves and magnitude, and also the relation between the predominant period and focal depth for a certain magnitude range are obtained.", "subitem_description_type": "Abstract"}, {"subitem_description": "High-pass, Low-pass, Band-pass\u7b493\u7d44\u306eAnalog filter\u3092\u3082\u3061\u3044, Magnetic tape\u306b\u305f\u3081\u3053\u307e\u308c\u305f\u5730\u9707\u8a18\u8c61\u306e\u5468\u6ce2\u6570\u5206\u6790\u3092\u304a\u3053\u306a\u3063\u305f. 1966\u5e744\u6708\u4ee5\u5f8c,\u7b51\u6ce2,\u5802\u5e73,\u6e05\u6f84\u7b49\u5404\u5730\u9707\u89b3\u6e2c\u6240\u306b\u8a2d\u7f6e\u4e2d\u306e\u7121\u7dda\u5730\u9707\u8a08\u3092\u3064\u304b\u3044, Magnetic tape\u306b\u96c6\u4e2d\u9332\u97f3\u3055\u308c\u305fData\u304b\u3089\u9060\u5730\u5730\u9707\u5b9f\u4f53\u6ce2\u4e26\u3073\u306b\u8868\u9762\u6ce2\u306b\u3064\u3044\u3066\u89e3\u6790\u3092\u304a\u3053\u306a\u3063\u305f.\u4e3b\u306a\u7d50\u679c\u306f\u6b21\u306e\u901a\u308a\u3067\u3042\u308b.", "subitem_description_type": "Abstract"}]}, "item_4_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "130727", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "\u8fbb\u6d66, \u8ce2"}]}]}, "item_4_identifier_registration": {"attribute_name": "ID\u767b\u9332", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.15083/0000033470", "subitem_identifier_reg_type": "JaLC"}]}, "item_4_publisher_20": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "\u6771\u4eac\u5927\u5b66\u5730\u9707\u7814\u7a76\u6240"}]}, "item_4_source_id_10": {"attribute_name": "\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00162258", "subitem_source_identifier_type": "NCID"}]}, "item_4_source_id_8": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "00408972", "subitem_source_identifier_type": "ISSN"}]}, "item_4_subject_15": {"attribute_name": "\u65e5\u672c\u5341\u9032\u5206\u985e\u6cd5", "attribute_value_mlt": [{"subitem_subject": "453", "subitem_subject_scheme": "NDC"}]}, "item_4_text_21": {"attribute_name": "\u51fa\u7248\u8005\u5225\u540d", "attribute_value_mlt": [{"subitem_text_value": "Earthquake Research Institute, University of Tokyo"}]}, "item_4_text_34": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"subitem_text_value": "Departmental Bulletin Paper"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Tsujiura, Masaru"}], "nameIdentifiers": [{"nameIdentifier": "130726", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2017-06-26"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "ji0454003.pdf", "filesize": [{"value": "1.3 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1300000.0, "url": {"label": "ji0454003.pdf", "url": "https://repository.dl.itc.u-tokyo.ac.jp/record/33470/files/ji0454003.pdf"}, "version_id": "66ad29f6-0860-4b36-affa-30bdbeff92bc"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Frequency Analysis of Seismic Waves (2)", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Frequency Analysis of Seismic Waves (2)", "subitem_title_language": "en"}]}, "item_type_id": "4", "owner": "1", "path": ["80/4535/4927/4928", "9/504/4538/4929/4930"], "permalink_uri": "https://doi.org/10.15083/0000033470", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-05-30"}, "publish_date": "2008-05-30", "publish_status": "0", "recid": "33470", "relation": {}, "relation_version_is_last": true, "title": ["Frequency Analysis of Seismic Waves (2)"], "weko_shared_id": -1}