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These filters produce acausal signals before the arrival of real seismic waves and this had been a problem in phase picking work. We constructed an allpass filter to minimize this acausal signal and introduced it to the automatic data processing system of EOC. The acausal signals are reduced significantly, although a few percent of them still remain in the worst case.", "subitem_description_type": "Abstract"}]}, "item_4_description_6": {"attribute_name": "\u5185\u5bb9\u8a18\u8ff0", "attribute_value_mlt": [{"subitem_description": "\uff1c\u8ad6\u8aac\uff1e", "subitem_description_type": "Other"}]}, "item_4_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "72094", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "IDE, Satoshi"}]}, {"nameIdentifiers": [{"nameIdentifier": "72095", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "URABE, Taku"}]}]}, "item_4_identifier_registration": {"attribute_name": "ID\u767b\u9332", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.15083/00032267", "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": "AA1144042X", "subitem_source_identifier_type": "NCID"}]}, "item_4_source_id_8": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "13426486", "subitem_source_identifier_type": "ISSN"}]}, "item_4_text_21": {"attribute_name": "\u51fa\u7248\u8005\u5225\u540d", "attribute_value_mlt": [{"subitem_text_value": "Earthquake Research Institute\uff0cUniversity of Tokyo"}]}, "item_4_text_34": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"subitem_text_value": "Departmental Bulletin Paper"}]}, "item_4_text_4": {"attribute_name": "\u8457\u8005\u6240\u5c5e", "attribute_value_mlt": [{"subitem_text_value": "\u6771\u4eac\u5927\u5b66\u5730\u9707\u7814\u7a76\u6240\u5730\u9707\u5730\u6bbb\u5909\u52d5\u89b3\u6e2c\u30bb\u30f3\u30bf\u30fc"}, {"subitem_text_value": "Earthquake Observation Center, Earthquake Research Institute, University of Tokyo"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u4e95\u51fa, \u54f2"}], "nameIdentifiers": [{"nameIdentifier": "72092", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "\u535c\u90e8, \u5353"}], "nameIdentifiers": [{"nameIdentifier": "72093", "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": "2017-06-12"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "03_020-028.pdf", "filesize": [{"value": "1MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": "1MB", "url": {"label": "03_020-028.pdf", "url": "https://repository.dl.itc.u-tokyo.ac.jp/record/32276/files/03_020-028.pdf"}, "version_id": "7645e38e-5f89-4297-b7f9-fb7ab9f574df"}]}, "item_keyword": {"attribute_name": "\u30ad\u30fc\u30ef\u30fc\u30c9", "attribute_value_mlt": [{"subitem_subject": "FIR filter", "subitem_subject_scheme": "Other"}, {"subitem_subject": "acausal signal", "subitem_subject_scheme": "Other"}, {"subitem_subject": "automatic processing", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "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": "\u5168\u57df\u901a\u904e\u30d5\u30a3\u30eb\u30bf\u306b\u3088\u308b\u975e\u56e0\u679c\u7684\u5730\u9707\u6ce2\u8a18\u9332\u306e\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u4f4d\u76f8\u88dc\u6b63", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "\u5168\u57df\u901a\u904e\u30d5\u30a3\u30eb\u30bf\u306b\u3088\u308b\u975e\u56e0\u679c\u7684\u5730\u9707\u6ce2\u8a18\u9332\u306e\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u4f4d\u76f8\u88dc\u6b63", "subitem_title_language": "ja"}]}, "item_type_id": "4", "owner": "1", "path": ["80/4453/4493", "9/504/4455/4494"], "permalink_uri": "https://doi.org/10.15083/00032267", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2017-05-15"}, "publish_date": "2017-05-15", "publish_status": "0", "recid": "32276", "relation": {}, "relation_version_is_last": true, "title": ["\u5168\u57df\u901a\u904e\u30d5\u30a3\u30eb\u30bf\u306b\u3088\u308b\u975e\u56e0\u679c\u7684\u5730\u9707\u6ce2\u8a18\u9332\u306e\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u4f4d\u76f8\u88dc\u6b63"], "weko_shared_id": -1}