Pub Date : 2021-02-25DOI: 10.7846/JKOSMEE.2021.24.1.32
Min-guk Seo, Sung-Chul Hwang, Yong-Ju Kwon, Dong-Min Park, Hyung-Seung Nam, S. Hong, Hyuek-Jin Choi
{"title":"Study of Towing Characteristics of Damaged Ship","authors":"Min-guk Seo, Sung-Chul Hwang, Yong-Ju Kwon, Dong-Min Park, Hyung-Seung Nam, S. Hong, Hyuek-Jin Choi","doi":"10.7846/JKOSMEE.2021.24.1.32","DOIUrl":"https://doi.org/10.7846/JKOSMEE.2021.24.1.32","url":null,"abstract":"","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114069791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-25DOI: 10.7846/jkosmee.2020.23.4.192
Y. Ha, J. Y. Park, R. Chan, Seung-Ho Shin
− In this study, regular wave tests were performed for pitch motion characteristics of a Salter’s duck type rotor model. In the model test, pontoons behind the rotor model, which is for the buoyancy of a truss-platform, were applied, and the different motion characteristics of the rotor model were investigated in accordance with existence and nonexistence of the pontoons. The experiments were performed in three different wave heights, and the experimental results were directly compared with frequency domain analysis results. From the model test, it could be found that the pontoons move the resonance period of the rotor, and the pitch motions of the rotor in the case of the relatively high wave height were largely varied in low wave periods compared to the resonance period of the rotor. Also, independently of the pontoons, the resonance periods of the rotor in three wave heights were moved to low wave period direction independently of the pontoons as the wave height rose. And the normalized pitch motions of the rotor by three wave heights decreased as the wave height rose.
{"title":"An Experimental Study for the Non-linear Motion Characteristics of an Asymmetric Rotor by Pontoons","authors":"Y. Ha, J. Y. Park, R. Chan, Seung-Ho Shin","doi":"10.7846/jkosmee.2020.23.4.192","DOIUrl":"https://doi.org/10.7846/jkosmee.2020.23.4.192","url":null,"abstract":"− In this study, regular wave tests were performed for pitch motion characteristics of a Salter’s duck type rotor model. In the model test, pontoons behind the rotor model, which is for the buoyancy of a truss-platform, were applied, and the different motion characteristics of the rotor model were investigated in accordance with existence and nonexistence of the pontoons. The experiments were performed in three different wave heights, and the experimental results were directly compared with frequency domain analysis results. From the model test, it could be found that the pontoons move the resonance period of the rotor, and the pitch motions of the rotor in the case of the relatively high wave height were largely varied in low wave periods compared to the resonance period of the rotor. Also, independently of the pontoons, the resonance periods of the rotor in three wave heights were moved to low wave period direction independently of the pontoons as the wave height rose. And the normalized pitch motions of the rotor by three wave heights decreased as the wave height rose.","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115615672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-25DOI: 10.7846/jkosmee.2020.23.1.13
Minyu Yeo, Jin-Koo Kim, D. Lee
− This paper analyzed the assessment status of fish and fishery resources items include fish egg and larvae to understand marine environmental impact assessment on the Sea Area Utilization Consultation according to the ocean developmental project, last 2 years. The consequence of damages and impacts from the developmental projects such as public waters reclamation and marine sand mining tend to emerge in the fish farms and fishery resources mainly, but in-situ survey and impact assessment related to these items were insufficient compared to other items such as physical, chemical, pelagic and benthic ecosystem factors. In case of fish, fish egg and larvae, not only the information of basic current situation was insufficient, but also the survey time, sampling and control site, as well as methods were inappropriate. In addition, the predictions and reduction measures after construction were very limited, and postmonitoring for actual verification was unreasonable. In order to improve these problems of marine environmental impact assessment and induce a reasonable assessment in the future, improvement of the statement regulations and establishment of information system related to field data based on fishery resources are necessary.
{"title":"Analysis and Improvement of Marine Fish and Fishery Resources based on the Environmental Impact Assessment Items by Ocean Developmental Project","authors":"Minyu Yeo, Jin-Koo Kim, D. Lee","doi":"10.7846/jkosmee.2020.23.1.13","DOIUrl":"https://doi.org/10.7846/jkosmee.2020.23.1.13","url":null,"abstract":"− This paper analyzed the assessment status of fish and fishery resources items include fish egg and larvae to understand marine environmental impact assessment on the Sea Area Utilization Consultation according to the ocean developmental project, last 2 years. The consequence of damages and impacts from the developmental projects such as public waters reclamation and marine sand mining tend to emerge in the fish farms and fishery resources mainly, but in-situ survey and impact assessment related to these items were insufficient compared to other items such as physical, chemical, pelagic and benthic ecosystem factors. In case of fish, fish egg and larvae, not only the information of basic current situation was insufficient, but also the survey time, sampling and control site, as well as methods were inappropriate. In addition, the predictions and reduction measures after construction were very limited, and postmonitoring for actual verification was unreasonable. In order to improve these problems of marine environmental impact assessment and induce a reasonable assessment in the future, improvement of the statement regulations and establishment of information system related to field data based on fishery resources are necessary.","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129208619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-25DOI: 10.7846/jkosmee.2019.22.3.142
J. Won, Yong-Woo Lee, Seong-Jin Kim, Seong-Gil Kim
{"title":"Status and Developmental Direction of Persistent Pollutants Survey on Marine Ecosystems of Korea","authors":"J. Won, Yong-Woo Lee, Seong-Jin Kim, Seong-Gil Kim","doi":"10.7846/jkosmee.2019.22.3.142","DOIUrl":"https://doi.org/10.7846/jkosmee.2019.22.3.142","url":null,"abstract":"","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128708449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-25DOI: 10.7846/jkosmee.2019.22.3.125
Dongeun Kim, Y. H. Bae
{"title":"Time Domain Analysis of Optimal Arrangement of Wave Energy Converters placed on a Floating Platform","authors":"Dongeun Kim, Y. H. Bae","doi":"10.7846/jkosmee.2019.22.3.125","DOIUrl":"https://doi.org/10.7846/jkosmee.2019.22.3.125","url":null,"abstract":"","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116785748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-25DOI: 10.7846/jkosmee.2019.22.3.151
Hyebin Lee, I. Cho, H. Ko, Y. H. Bae
{"title":"Estimation of Annual Energy Production of a Horizontal Cylinder Wave Energy Converter by Time-domain Analysis","authors":"Hyebin Lee, I. Cho, H. Ko, Y. H. Bae","doi":"10.7846/jkosmee.2019.22.3.151","DOIUrl":"https://doi.org/10.7846/jkosmee.2019.22.3.151","url":null,"abstract":"","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127628145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-25DOI: 10.7846/jkosmee.2019.22.3.172
Daeseok Kang, Jungho Nam
{"title":"Emergy Evaluation of Sustainability of Korean Fisheries","authors":"Daeseok Kang, Jungho Nam","doi":"10.7846/jkosmee.2019.22.3.172","DOIUrl":"https://doi.org/10.7846/jkosmee.2019.22.3.172","url":null,"abstract":"","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132524375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-25DOI: 10.7846/jkosmee.2019.22.3.159
Y. Yoon, Dalsang Jeong
{"title":"Spatio-temporal Distributions of Phytoplankton Community and It’s Variation Characteristics in the Ulsan Coastal Waters, Southern East Sea of Korea","authors":"Y. Yoon, Dalsang Jeong","doi":"10.7846/jkosmee.2019.22.3.159","DOIUrl":"https://doi.org/10.7846/jkosmee.2019.22.3.159","url":null,"abstract":"","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126796919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-25DOI: 10.7846/jkosmee.2019.22.3.182
Kilwon Kim, K. Hong, Kyong-Hwan Kim, B. Hyun
{"title":"Design and Performance Analysis of Impulse Turbine for 30 kW-class OWC-type Wave Energy Converter Installed at Breakwater","authors":"Kilwon Kim, K. Hong, Kyong-Hwan Kim, B. Hyun","doi":"10.7846/jkosmee.2019.22.3.182","DOIUrl":"https://doi.org/10.7846/jkosmee.2019.22.3.182","url":null,"abstract":"","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126476240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-25DOI: 10.7846/jkosmee.2019.22.3.133
Sung-Jae Kim, W. Koo, Min-Jae Shin
{"title":"An Experimental Study on Heave Reduction of a Floating body with Various Submerged-Body Areas","authors":"Sung-Jae Kim, W. Koo, Min-Jae Shin","doi":"10.7846/jkosmee.2019.22.3.133","DOIUrl":"https://doi.org/10.7846/jkosmee.2019.22.3.133","url":null,"abstract":"","PeriodicalId":143096,"journal":{"name":"Journal of the Korean Society for Marine Environment & Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123444437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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