• 한국산학기술학회논문지
• /
• 제21권7호
• /
• pp.176-183
• /
• 2020

구조함은 수색 및 구조작업을 위하여 크게 세 가지 형태의 잠수체계(Diver Stage Diving, Wet Bell Diving 및 Scuba Diving)를 보유하고 있다. 어떠한 잠수체계를 활용하더라도 잠수요원이 잠수작업 완료 후 상승 시에는 잠수병 예방을 위하여 잠수작업수심 및 잠수 총 시간에 해당하는 감압표에 따라 감압절차를 준수하여야 한다. 감압절차는 크게 수중감압방법과 수중 및 함상감압을 병행하여 수행하는 방법으로 나뉘게 된다. 특히 수중 및 함상감압을 함께 수행하는 방법의 경우 U.S Navy Diving Manual에 따라 수중감압에서 함상감압으로 넘어가는 단계인 Surface Interval이 5분을 초과하지 않아야 한다. 하지만 실선 테스트결과 Wet Bell Diving에서 Surface Interval이 5분을 초과하는 문제점이 발생하였다. 이에 본 논문에서는 모든 가능한 원인을 식별하여 원인분석을 실시하고, 이를 바탕으로 개선된 Wet Bell Diving의 측정결과를 나타내었다. 그 결과 개선된 잠수체계의 실선 테스트에서 Surface Interval이 5분 이내 만족함을 확인하였다. 본 논문의 연구결과는 향후 잠수체계의 운용 및 개선에 유용한 자료로 활용될 것으로 판단된다.

• The Korean Journal of Physiology
• /
• 제10권1호
• /
• pp.61-66
• /
• 1976

Rectal temperature, skin temperature and oxygen consumption were measured in five women divers during diving under two conditions a) wearing a cotton bathing suit and b) wearing a diving suit and the following results were obtained. 1. The duration of the diving period was 30 min with the cotton bathing suit whereas it was above 120 min with the diving suit. 2. The average rectal temperature fell to $34.5^{\circ}C$ after 30 min of diving with the cotton bathing suit. On the other hand, with the diving suit, immediately after submersion, the rectal temperature rose about $3^{\circ}C$ and remained at about $39^{\circ}C$ throughout the diving period of 120 min. 3. Average mean skin temperature during diving was $11^{\circ}C$ and $21^{\circ}C$ with cotton bathing suit and with the diving suit, respectively. The mean body temperature fell to $25^{\circ}C$ with the cotton bathing suit while it reached $32^{\circ}C$ with the diving suit at the end of each diving period. 4. Oxygen consumption during diving was three fold of the pre-dive level with the cotton bathing suit but it was two fold with the diving suit. 5. Total extra heat loss was 323 kcal during 120 min of diving with the diving suit. On the contrary, with the cotton bathing suit, it was 528 kcal for 30 min, These results may suggest that the prolongation of the diving period with the diving suit is primarily due to maintenance of core temperature at more or less physiological level as a result of reduction in conductive heat loss from the body surface to the water and the Preferential distribution of blood in the core area.

• 한국마린엔지니어링학회:학술대회논문집
• /
• 한국마린엔지니어링학회 2005년도 전기학술대회논문집
• /
• pp.886-891
• /
• 2005

This study aims to provide divers with improved safe diving practices by analyzing reports on scuba diving casualties that recently occured in Korea, Japan and USA. The result of this study should be notified to all the divers in Korea for the purpose of preventing the diving accident. All the data were collected through the diving accident reports of various sourses, which include KUA(Korea Underwater Association) technical committee, the accident statistical data of National Maritime Police Agency, articles of domestic and foreign scuba diving magazine, accident reports of various newspaper, annual report on decompression illness and diving fatalities by DAN(Diver Alert Network), various type of data on diving accident from local as well as national seminars, and medical treatment data of diving accident.

• 한국안전학회지
• /
• 제35권1호
• /
• pp.70-78
• /
• 2020

Nitrox diving was introduced by the NOAA (National Oceanic and Atmospheric Administration) to increase the oxygen content and lower the nitrogen content in respiratory gases. The commercial diving sector specializing in underwater operations has recently introduced regulations on the use of Nitrox. Because the respiratory gas for Nitrox diving has a lower nitrogen content than the normal air, the amount of nitrogen dissolved in the body is small, which not only significantly reduces the decompression time compared to air diving, but also reduces the chance of exposure to decompression sickness. In this study, we applied the VPM (Varying Permeability Model) algorithm to virtual diving with air and Nitrox as a respiratory gas, respectively, to study the optimal Nitrox diving for the safety at the underwater works. The results showed that Nitrox diving had a longer NDL (No-Decompression Limit), a much shorter depression time. In other words, Nitrox diving in underwater works is safer from decompression sickness than commonly used air diving.

• Journal of Advanced Marine Engineering and Technology
• /
• 제35권6호
• /
• pp.856-860
• /
• 2011

잠수 시스템의 표준 및 안전 기준에는 잠수 장비, 잠수 자격, 잠수 의학, 잠수 절차의 4개 분야가 포함되어야 한다. 이 연구에서는 잠수 시스템의 국제 규격, 국외 정부 기준, 검사단체의 규칙, 해외 잠수조직의 관련 규정을 고찰하여 국내 기준의 필요성을 제안하였다. 또한 해외 잠수기관들의 현황을 고찰하여 국제 협력방안 등 개선 방안을 제시하였다.

• 한국항해학회지
• /
• 제20권3호
• /
• pp.137-162
• /
• 1996

Today diving activity and technology are indispensable for underwater technology and offshore engineering. And then diving business is still more important to business of subsea. This study surveyed the issue of diving activity in Korea as for compared foreign diving activity. This paper analyzed the status of diving business that include commercial and sport-leisure diving business and development of commercial divers in Korea. This paper reputed the object, the necessity and the character of commercial divers. For the purpose of this study is considered in order to analyze the environment of commercial divers and propose the planning for industrial diving business. Under the present circumstance in Korea this development planning study may be restricted. but the effective planning to activate Korean commercial diving business is abstracted as follows; First, establishment of new course, grade, certificate and licence test for diver is a pre-requisite factor for the successful enactment. Second, the political assistance of concerned government authority is needed. Third, establishment of Korean diving school and medical center for divers are strongly required. Forth, setting up the department of diving activity in university.

• 식품보건융합연구
• /
• 제7권4호
• /
• pp.23-29
• /
• 2021

This study analyzes the physiological changes that occur after free diving and studies peroxidants and antioxidants according to the recovery method. Accordingly, the purpose of this study is to provide proper rest methods after free diving and provide basic data for free diving research. Eight male college students recovered for 30 minutes after 20 free injections at a 5-meter diving site, 20 free injections after a week's car wash, and recovered for 30 minutes after collecting blood during recovery to analyze the effects of peroxidants and antioxidants. Comparison of changes in peroxidants and antioxidants in recovery methods after free-diving iterations showed that SOD tended to decrease immediately after free-diving, increasing MDA to 10 minutes after recovery, but no significant difference was found. The purpose of this study is to observe physiological changes according to the recovery method after free diving and to propose an appropriate recovery method after free diving. However, there was no significant difference in all the restoration methods, and 20 freediving was not high kinetic intensity for the subjects, which is believed to have resulted in the following results. Therefore, it was discussed that the repetitive diving strength should be higher to confirm a significant difference in the recovery method after free diving.

• 한국항해항만학회지
• /
• 제30권1호
• /
• pp.29-34
• /
• 2006

연구는 1997년부터 2003년까지 우리나라 전국에서 발생한 스쿠버 잠수 사고 자료를 수집 및 분석하고 일본 및 미국에서 발생한 잠수 사고와 비교 분석하여 우리나라 스쿠버 잠수 사고의 특성을 밝혀내었다. 연구 결과는 잠수 사고 예방에 큰 기여를 할 수 있을 것으로 기대된다. 사고 자료는 대한수중협회의 기술위원회에 보고된 자료와 해양경찰청의 자료, 스쿠버 잠수 전문점에 전화 통화 및 방문 조사를 실시하여 얻은 정보, DAN(Diver Alert Network)에서 발행한 잠수 사고 보고 자료집, 월간 잡지에 수록된 잠수 사고 보고 자료, 그리고 세미나 발표 자료 등을 참조하였다. 자료 분석은 사망 사고에 국한하였으며 분석 결과 우리나라의 사망률이 일본의 2.8배, 미국의 2.2배 수준인 것으로 나타났다.

• 수산해양기술연구
• /
• 제51권1호
• /
• pp.136-145
• /
• 2015

A large number of divers that are engaged in a diving apparatus fishery (DAF) have been experienced a decompression sickness. This study has two purposes. One is measurement of the diving patterns and respiration rate. The other one is to research the institutional improvement plan of the DAF. In the experiments, the diving depth, the diving time, the total ascent time and the ascent rate were about 12.4 m, 22 min, 28 s and 28.1 m/min, respectively, in Tongyeong. In the case of Geoje the diving depth, the diving time, the total ascent time and the ascent rate were about 20 m, 64 min, 17 min and 1.3 m/min, respectively. In a questionnaire survey, the diving depth was 20~29 m (56.4%) in Tongyeong and Geoje, the diving time was 50~59 min (42.9%) in Tongyeong and 70~79 min (35%) in Geoje and all of the divers experienced decompression sickness. In the investigation related to a institutional issue, both of the diving apparatus fisheries had adopted the share system. And the laws and the system for the safety of the divers were not enough in Korea. This study suggests that the license and the diving time for diver of the DAF are needed and diver protection for decompression sickness is needed in the law. And the wage payments should change from full sharing to partial sharing included a regular pay to enhance the safety of the divers.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2005년도 춘계학술대회 논문집
• /
• pp.125-129
• /
• 2005

본 연구는 1997년부터 현재에 이르기까지 전국에서 발생한 스쿠버다이빙 사고 자료를 수집 및 분석하고 일본 및 미국에서 발생한 다이빙 사고와 비교분석하여 우리나라 스쿠버다이빙 사고의 특성 및 문제점을 밝혀내 개선책을 제안하였다. 연구 결과는 잠수 사고 예방에 큰 기여를 할 수 있을 것으로 기대된다. 사고 자료는 대한수중협회의 기술위원회에 보고된 자료와 해양경찰청의 자료, 스쿠버 다이빙 전문점에 전화 통화 및 방문조사를 실시하여 얻은, DAN(Diver Alert Net-work)에서 발행한 다이빙 사고보고 자료집, 월간잡지에 수록된 잠수사고 보고 자료, 그리고 세미나 발표 자료 등을 참조하였다.