Proceedings OCEANS '83最新文献

Development Of Hearing Conservation Standards For Hazardous Noise Associated With Diving Operations 潜水作业有害噪音听力保护标准的制定

Proceedings OCEANS '83 Pub Date : 1983-09-01 DOI: 10.1109/OCEANS.1983.1152058

P. Smith

{"title":"Development Of Hearing Conservation Standards For Hazardous Noise Associated With Diving Operations","authors":"P. Smith","doi":"10.1109/OCEANS.1983.1152058","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152058","url":null,"abstract":"Spectral analyses reveal that wet-suited divers using certain underwater hand-held tools are exposed to intense noise. There is no general hearing-conservation standard (hcs) for noise exposure in wet environments and the existing literature does not provide a theoretical or an empirical basis for developing one. An interim hcs, based on equal sensory magnitudes, is developed and discussed. Temporary auditory threshold shifts resulting from controlled exposure to noise have been used to assess noise hazards. Research in progress at the Naval Submarine Medical Research Laboratory (NSMRL) in which divers are exposed to noise from three classes of hand-held tools is described. There is also a need for an hcs for noise exposure in dry hyperbaric environments, such as in diving chambers, and diving helmets. Since auditory sensitivity is diminished in hyperbaric gas, it is reasonable to assume that the existing hcs for surface pressure can be applied conservatively to dry diving situations. However, recent experience suggests that the surface hcs may be needlessly restrictive for hyperbaric gas environments. New data on this point recently obtained at NSMRL is presented.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123732631","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}

引用次数: 8

Culturing And Utilization Of Large Brown Seaweeds (Kelps) 大型褐藻(海带)的栽培与利用

Proceedings OCEANS '83 Pub Date : 1983-08-01 DOI: 10.1109/OCEANS.1983.1152028

W. North

{"title":"Culturing And Utilization Of Large Brown Seaweeds (Kelps)","authors":"W. North","doi":"10.1109/OCEANS.1983.1152028","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152028","url":null,"abstract":"Kelp species, the larger members of brown-colored marine plants, are widely cultivated and have been utilized by many peoples as food, fertilizer, a source of chemicals, and as fodder for domestic animals. Interest has recently developed in usage as alternative energy sources (kelp tissue would be converted to methane via bacterial fermentation). Kelp life cycles involve an alternation of generations from an entirely microscopic phase to a phase that includes the large macroscopic plant utilized by humans. The complex life history imposes culturing requirements beyond the usual degree of care needed for propagating terrestrial plants. These difficulties notwithstanding, kelp cultivation is successfully practiced, particularly in the Orient. Culturing techniques range from artificially \"seeding\" an artificial substrate which may eventually be outplanted to the sea, to transplanting large mature individuals to desired locations, allowing them to \"seed\" naturally and establish their populations. Giant kelp, Macrocystis, is the principal brown alga utilized commercially in the United States. Culturing techniques have been developed for growing Macrocystis. Depleted kelp beds in southern California have been successfully restored utilizing these methods.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"04 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127256396","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}

引用次数: 4

Use Of Acoustics In Localizing Under-Ice Oil Spills 声学在定位冰下石油泄漏中的应用

Proceedings OCEANS '83 Pub Date : 1983-08-01 DOI: 10.1109/OCEANS.1983.1152128

R. Francois, T. Wen

引用次数: 2

The Office Of Naval Research Ocean Technology Program 海军研究办公室海洋技术项目

Proceedings OCEANS '83 Pub Date : 1900-01-01 DOI: 10.1109/OCEANS.1983.1152152

E. Silva

引用次数: 0

The National Undersea Research Program 国家海底研究计划

Proceedings OCEANS '83 Pub Date : 1900-01-01 DOI: 10.1109/OCEANS.1983.1152040

D. Keach, W. Busch

引用次数: 1

Effective Use of the Sea Overcoming the Law of the Sea Problems 有效利用海洋克服海洋法问题

Proceedings OCEANS '83 Pub Date : 1900-01-01 DOI: 10.1109/OCEANS.1983.1151964

D. Ross

引用次数: 0

Aquatic Bioassays Of Fusrap Soils Fusrap土壤的水生生物测定

Proceedings OCEANS '83 Pub Date : 1900-01-01 DOI: 10.1109/OCEANS.1983.1151981

R. Hillman, J. Williams, F. Saksa, R. McGrath, L. Gómez

引用次数: 0

In Situ Data Selection And Compression As A Tool For Extending The Lifetime Of Remote Acquisiton Systems 现场数据选择和压缩作为延长远程采集系统寿命的工具

Proceedings OCEANS '83 Pub Date : 1900-01-01 DOI: 10.1109/OCEANS.1983.1152120

C. Holland, E. Burdette

{"title":"In Situ Data Selection And Compression As A Tool For Extending The Lifetime Of Remote Acquisiton Systems","authors":"C. Holland, E. Burdette","doi":"10.1109/OCEANS.1983.1152120","DOIUrl":"https://doi.org/10.1109/OCEANS.1983.1152120","url":null,"abstract":"The deployment lifetime of an in situ acquisition system is a function, primarily, of the efficient utilization of the energy source and data storage medium. Recent improvements in data and electrical energy storage will provide some improvement in deployment life and have certainly reduced the cost per bit of data storage but the greatest potential improvement is in the application of microcomputing technology to programmed data selection and compaction. Programmed or computed data selection implements, in situ, the decision making process of a data collector and results in categorization of data into high, medium, and low value groups. Data compression techniques are then used to preprocess the categories into compacted data sets with information being preserved in accordance with the designated value of the set. Computed data selection followed by efficient data compression provides, then, a powerful approach for optimizing remote data acquisition. This paper examines data categorization and compression techniques which have been applied successfully to marine and non-marine environmental measurements and discusses hardware implementation. These techniques are applied to actual time series oceanographic data and the effectiveness of each technique evaluated. Results of the evaluations, impact of each technique on system software, and a recommendation for a prototype hardware system are presented.","PeriodicalId":137921,"journal":{"name":"Proceedings OCEANS '83","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114959797","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}

引用次数: 3

Cooperative Dredging: The Management of Port and Harbor Dredging Projects in Massachusetts 合作疏浚:马萨诸塞州港口和港口疏浚项目的管理

Proceedings OCEANS '83 Pub Date : 1900-01-01 DOI: 10.1109/OCEANS.1983.1151966

H. Diamond

引用次数: 1

A General System For Physiological Diver Monitoring 潜水员生理监测通用系统

Proceedings OCEANS '83 Pub Date : 1900-01-01 DOI: 10.1109/OCEANS.1983.1152064

A. Lovik, J. Jones, J. Tangen

引用次数: 2