{"title":"A method to improve instationary force error estimates for undulatory swimmers","authors":"J. Tuhtan, G. Toming, T. Ruuben, M. Kruusmaa","doi":"10.3723/UT.33.141","DOIUrl":"https://doi.org/10.3723/UT.33.141","url":null,"abstract":"","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"7 1","pages":"141-151"},"PeriodicalIF":0.4,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87718870","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}
M. Asplund, P. Engström, C. Klages, Marie Moestrup Jensen, Delia Ní Chíobháin Enqvist
The European Scientific Diving network's 2nd Conference on Scientific Diving : a collective view from the organising committee
欧洲科学潜水网络第二届科学潜水会议:来自组委会的集体观点
{"title":"The European Scientific Diving network's 2nd Conference on Scientific Diving : a collective view from the organising committee","authors":"M. Asplund, P. Engström, C. Klages, Marie Moestrup Jensen, Delia Ní Chíobháin Enqvist","doi":"10.3723/ut.34.001","DOIUrl":"https://doi.org/10.3723/ut.34.001","url":null,"abstract":"The European Scientific Diving network's 2nd Conference on Scientific Diving : a collective view from the organising committee","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"3 1","pages":"1-2"},"PeriodicalIF":0.4,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89256289","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}
In the subset of unconventional natural gases, shale gas, tight gas and coal bed methane are now being produced to some extent, whereas the biggest part of the unconventional resource is made up of gas hydrates which are still in the exploratory phase of development. It is recognised that the resource potential of gas hydrates existing in the Earth is twice the amount of the combined remaining resources of other fossil fuels (i.e. coal, oil and natural gas). So far, hydrates have been recovered using pressure coring carried out by vessels using conventional drilling methods. Original attempts to recover hydrates were based on upgrading underwater drill rigs with autoclaves. The present paper reviews the importance of pressure coring systems with the objective of assisting researchers and engineers in the development of technologies that will support the exploration of gas hydrates and to consider underwater drill rigs as novel drilling tools.
{"title":"Review of pressure coring systems for offshore gas hydrates research","authors":"Khizar Abid, G. Spagnoli, C. Teodoriu, G. Falcone","doi":"10.3723/UT.33.019","DOIUrl":"https://doi.org/10.3723/UT.33.019","url":null,"abstract":"In the subset of unconventional natural gases, shale gas, tight gas and coal bed methane are now being produced to some extent, whereas the biggest part of the unconventional resource is made up of gas hydrates which are still in the exploratory phase of development. It is recognised that the resource potential of gas hydrates existing in the Earth is twice the amount of the combined remaining resources of other fossil fuels (i.e. coal, oil and natural gas). So far, hydrates have been recovered using pressure coring carried out by vessels using conventional drilling methods. Original attempts to recover hydrates were based on upgrading underwater drill rigs with autoclaves. The present paper reviews the importance of pressure coring systems with the objective of assisting researchers and engineers in the development of technologies that will support the exploration of gas hydrates and to consider underwater drill rigs as novel drilling tools.","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"18 1","pages":"19-30"},"PeriodicalIF":0.4,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88827741","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}
A. Behar, Daming D. Chen, Colin Ho, E. McBryan, Christian Walter, Joseph Horen, Scott Foster, Tyler Foster, Andrew Warren, Sai Vemprala, J. Crowell
{"title":"MSLED: The micro subglacial lake exploration device","authors":"A. Behar, Daming D. Chen, Colin Ho, E. McBryan, Christian Walter, Joseph Horen, Scott Foster, Tyler Foster, Andrew Warren, Sai Vemprala, J. Crowell","doi":"10.3723/UT.33.003","DOIUrl":"https://doi.org/10.3723/UT.33.003","url":null,"abstract":"","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"1 1","pages":"3-17"},"PeriodicalIF":0.4,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76189660","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}
{"title":"Routledge Handbook of National and Regional Ocean Policies","authors":"B. Cicin-Sain, D. VanderZwaag, M. Balgos","doi":"10.4324/9781315765648","DOIUrl":"https://doi.org/10.4324/9781315765648","url":null,"abstract":"","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"17 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2015-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89896666","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}
{"title":"The future of the Society for Underwater Technology: A collective view","authors":"P. Metcalf, G. Griffiths, M. Sayer, I. Gallett","doi":"10.3723/UT.32.213","DOIUrl":"https://doi.org/10.3723/UT.32.213","url":null,"abstract":"","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"32 1","pages":"213-215"},"PeriodicalIF":0.4,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75187720","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}
Preliminary results from data collected along mid-slope depths in the northern Gulf of Mexico are very promising in regard to the applicability of short offset, ultra-high-resolution, three-dimensional (UHR3D) seismic methods in the detection and delineation of geohazards. Penetration of greater than 2s two-way travel time (TWT) below seabed was achieved with a P-Cable™ system comprising 18 streamers that were 100m in length and a 210in 3 Generator-Injector (GI) air gun fired in harmonic mode. Dips in excess of 17° were imaged at greater than 1s TWT below the sea floor. Between the sea floor and 1s TWT below the sea floor, the dominant frequency recovered is between about 78Hz and 100Hz. Apparent subsurface horizontal resolution is in the order of 16m, and subsurface vertical resolution is as high as 1.6m. Seafloor resolution is consistent with the natural bin size of 3.125 × 6.25m.
{"title":"Applicability of ultra-high-resolution 3D seismic data for geohazard identification at mid-slope depths in the Gulf of Mexico: Initial results","authors":"B. Brookshire, Frank P Landers, J. Stein","doi":"10.3723/UT.32.271","DOIUrl":"https://doi.org/10.3723/UT.32.271","url":null,"abstract":"Preliminary results from data collected along mid-slope depths in the northern Gulf of Mexico are very promising in regard to the applicability of short offset, ultra-high-resolution, three-dimensional (UHR3D) seismic methods in the detection and delineation of geohazards. Penetration of greater than 2s two-way travel time (TWT) below seabed was achieved with a P-Cable™ system comprising 18 streamers that were 100m in length and a 210in 3 Generator-Injector (GI) air gun fired in harmonic mode. Dips in excess of 17° were imaged at greater than 1s TWT below the sea floor. Between the sea floor and 1s TWT below the sea floor, the dominant frequency recovered is between about 78Hz and 100Hz. Apparent subsurface horizontal resolution is in the order of 16m, and subsurface vertical resolution is as high as 1.6m. Seafloor resolution is consistent with the natural bin size of 3.125 × 6.25m.","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"62 1","pages":"271-278"},"PeriodicalIF":0.4,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75977308","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}
{"title":"Evidence-based practice in subsea engineering","authors":"S. Yasseri","doi":"10.3723/ut.32.231","DOIUrl":"https://doi.org/10.3723/ut.32.231","url":null,"abstract":"","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"421 1","pages":"231-244"},"PeriodicalIF":0.4,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73289733","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}
{"title":"Standards for marine energy – An update","authors":"J. Griffiths","doi":"10.3723/UT.32.279","DOIUrl":"https://doi.org/10.3723/UT.32.279","url":null,"abstract":"","PeriodicalId":44271,"journal":{"name":"UNDERWATER TECHNOLOGY","volume":"18 1","pages":"279-282"},"PeriodicalIF":0.4,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84980922","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：