{"created":"2023-05-15T09:41:10.609939+00:00","id":214,"links":{},"metadata":{"_buckets":{"deposit":"61898b18-cea6-48bb-8cf1-8a1fec5f58d5"},"_deposit":{"created_by":11,"id":"214","owners":[11],"pid":{"revision_id":0,"type":"depid","value":"214"},"status":"published"},"_oai":{"id":"oai:kagawa-u.repo.nii.ac.jp:00000214","sets":["13:41"]},"author_link":[],"item_10006_date_granted_11":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2014-03-24"}]},"item_10006_degree_grantor_9":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_language":"ja","subitem_degreegrantor_name":"香川大学"},{"subitem_degreegrantor_language":"en","subitem_degreegrantor_name":"Kagawa University"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"16201","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_10006_degree_name_8":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士（工学）","subitem_degreename_language":"ja"}]},"item_10006_description_7":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"要旨\n我が国の沿岸域は，かつて藻場が広範囲に分布し，豊かな海域環境を形成していた．藻場は，魚類等の産卵場や稚仔魚の成育場としての役割を果たし，沿岸漁業と深い関わりがある．しかし，先の東日本大震災による海底の地盤沈下や各種沿岸開発に伴う藻場の減少は深刻化しており，藻場の修復，造成およびより高度な海域環境改善技術の開発が望まれている．香川県においても藻場は，沿岸漁業と深い関わりがあり，自治体や漁業関係者らによる藻場の現状把握のための現地調査や藻場の修復・造成研究が進められているものの，安定した海藻着生基盤や環境改善に関する技術に乏しく，未だ有効な技術開発には至っていない．本研究では前述の問題を解決するために，多孔質体を用いた新規藻場造成構造物を設計し，悪化した海底環境を改善し，生物にとって好適な環境を提供可能な環境改善基質の開発を行い，新たな海域環境改善技術を検討した","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"ABSTRACT\nThere’re many semi-enclosed bay in Seto Inland Sea, Japan and the highest fisheries productive area  in  the  world.  On  the  other  hand,  red  tide  and  oxygen  depleted  water  have  occurred frequently and harmful affect against processes of biological production. There are many issues to be clarified about the suitable installation of artificial reefs, such as the relation between flow conditions  and  the  biological  effect  of  artificial  reefs.  Therefore  we  developed  an  artificial  reef with the functions ofthe current control and the high efficiency on adhesion of prey abundance. We  tried  realizing  the former  function  by  the  structure  and the  latter by  the  porous material. This  developed  artificial  reef  includes  the  porous  material.  The  porous  material  usedthe air-cooled blast furnace slag. The air-cooled blast furnace slag is one of the industry by-products which produced in a manufacturing process of iron and steel. The principal of its ingredient is a CaO, SiO2, and it has the element similar to the rock. Before the installation of the structure, we conducted carbonation of porous materials in order to equalize pH with sea water (8.0-9.0). This carbonation technology can expect the reduction of CO2and recycling of the industry by-product. Also,  this  structure  generates  distinctive  upwelling  or  downward  current  above  the  sediment, which  accelerates  vertical  mixture  of  bottom  layer  water.  Moreover,  we  expect  probability  of fouling  function  of  algae  with  this  current  control  function.We  examined  the  effect of  fouling function of algae around the structure, which was settled at the real sea bottom by measuring the concentration of algae and aggregation of fish juveniles. Verification researches in actual sea area on these functions are being performed at present and we introduce some results of these experiments.\nAlso, many harmful substances are hidden around us. Waters and soils polluted with harmful metal ions are particularly dangerous to the living organisms. A large amount of harmful metal ions  might  be diffused  in  the  water  environments  when  the  great  earthquake  occurred  in  the Eastern  Japan  in  March  2011.  The  purpose  in  the  present  study  is  to  verify  the  removal  of various  metal  ions  from  wastewaters  in  the  water  environments  by  the  porous  concrete containing  baking  bone  dust  (mainly  natural  hydroxyapatite;  HAP)  and  steel  slag  as  a industrial  by-product.  The  porous  concrete  showed  more  than  10N/mm2strength  and30%  air space rate. We investigated the removal of various metal ions from the artificial wastewater by the porous concrete. As a result, the porous concrete containing 10% baking bone dust efficiently absorbed lead ion, cadmium ion, copper ion, ferric ion and chromium ion. Manganese ion, nickel ion  and  strontium  ion  were  also  moderately  absorbed  in  the  porous  concrete.  Moreover,  we examined  the  absorption  of  ferric  ion  and  manganese  ion  eluted  from  the  bottom sediment in Yashima-bay  of  Kagawa  prefecture.  The  porous  concrete  significantly  absorbed  metal  ions eluted from the bottomsediment. To confirm the binding ability of the porous concrete toward metal ions in real sea, the amounts of metal ions bound to the porous concrete were measured after  placement  of  the  porous  concrete  in  Yashima-bay.  As  a  result,  2-3years  later  of  the placement  of  the  porous  concrete,  the  efficient  bindings  of  lead  ion,  cadmium  ion,  copper  ion, ferric  ion,  manganese  ion  and  zinc  ion  to  the  porous  concrete  were  observed.  These  results suggest  that  the  porous  concrete  containing  baking  bone  dust  seem  to  be  available  to  remove metal  ions  from  the  water  environments.  Furthermorethe  useful  metal  ions  absorbed  in  the porous concrete can be recovered easily with acid treatment.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10006_dissertation_number_12":{"attribute_name":"学位授与番号","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第92号"}]},"item_10006_relation_15":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://dl.ndl.go.jp/pid/10224377","subitem_relation_type_select":"URI"}}]},"item_10006_relation_28":{"attribute_name":"論文ID（NAID）","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"500000993985","subitem_relation_type_select":"NAID"}}]},"item_10006_text_30":{"attribute_name":"KEID","attribute_value_mlt":[{"subitem_text_value":"27482"}]},"item_10006_version_type_18":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"亀山, 剛史","creatorNameLang":"ja"},{"creatorName":"カメヤマ, タケシ","creatorNameLang":"ja-Kana"},{"creatorName":"Kameyama, Takeshi","creatorNameLang":"en"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-10-27"}],"displaytype":"detail","filename":"Eng_A92.pdf","filesize":[{"value":"7.5 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文","objectType":"fulltext","url":"https://kagawa-u.repo.nii.ac.jp/record/214/files/Eng_A92.pdf"},"version_id":"7f5657cc-8eac-4a3a-9fd7-35c9ca4a5064"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-10-27"}],"displaytype":"detail","filename":"Eng_A92_abstract_result.pdf","filesize":[{"value":"382.7 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"論文内容の要旨・審査結果の要旨","objectType":"abstract","url":"https://kagawa-u.repo.nii.ac.jp/record/214/files/Eng_A92_abstract_result.pdf"},"version_id":"a8aa9cc8-0198-4b8b-88a7-dbb8786b22b2"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"多孔質体を用いた藻場造成構造物および海域環境改善技術","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"多孔質体を用いた藻場造成構造物および海域環境改善技術","subitem_title_language":"ja"}]},"item_type_id":"10006","owner":"11","path":["41"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2014-03-24"},"publish_date":"2014-03-24","publish_status":"0","recid":"214","relation_version_is_last":true,"title":["多孔質体を用いた藻場造成構造物および海域環境改善技術"],"weko_creator_id":"11","weko_shared_id":-1},"updated":"2023-10-19T00:51:01.196426+00:00"}