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

• 한국산학기술학회논문지
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• 제16권2호
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• pp.1216-1226
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• 2015

본 연구는 스쿠버 다이버의 특성에 따른 다이빙 활동 전과 활동 중 안전 준수 실태를 파악하여, 안전교육의 방향을 제시하고자 시도하였다. 2012년 9월 21일부터 2013년 8월 16일까지 스쿠버 다이버 227명을 대상으로 동의를 받은 후 설문조사를 시행하였다. 자료 분석은 SPSS PC/21.0을 이용하여 기술통계와 $X^2$-test로 분석하였다. 연구 결과, 다이빙 활동 전 안전준수 항목 중 '음주', '준비 운동 여부', '호흡기 질병 시 다이빙 여부'의 항목은 주로 경력 또는 자격 수준이 높은 경우 잘 지켜지지 않고 있었다. 반면에, 다이빙 활동 중 안전 준수 항목 중 '신체 이상 시 중단 여부', '상승 시 안전 정지 여부', '상승시 수면과 주변 확인 여부' '분당 상승 및 하강 속도 인지 여부', '알파 깃발 또는 부표 사용 여부'의 항목은 주로 경력 또는 자격 수준이 낮은 경우 잘 지켜지지 않고 있었다. 따라서 스쿠버 다이버들의 안전사고 예방을 위해 다이빙 경력과 수준을 고려한 차별적이고 정기적인 교육과 점검이 필요하다.

• 대한의생명과학회지
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• 제14권4호
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• pp.219-223
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• 2008

The present study was designed to clarify whether scuba diving at 5 meters of seawater influences cerebral hemodynamics, hematological and biochemical variables. Twenty healthy young men well trained scuba diving participated in this study. The blood flow velocity in the right and left middle cerebral arteries (L-MCAV and R-MCAV), blood pressure (BP), heart rate (HR), CBC and differential count, prothrombin time (PT), activated partial thromboplastin time (aPTT), biochemical variables, D-dimer and interleukin-8 (IL-8) levels were determined before, immediately after scuba diving for 30 min, and after 30 min of rest (Pre-scuba, Scuba and R-30m, respectively). L-MCAV and R-MCAV tended to increase, but the only significant increase was in L-MCAV in Scuba. SBP and HR significantly declined in R-30m compared with those of Pre-scuba and the Scuba. IL-8 levels were elevated in Scuba and R-30m compared with that of Pre-scuba. In Scuba and R-30m, hematological variables except PT and biochemical parameters excluding glucose and lactic acid did not significantly changed in comparison with those of Pre-scuba. PT level at Scuba and glucose level at R-30m significantly declined in Scuba, while lactate level at R-30m increased compared with each in Pre-scuba. However, PT level at Scuba was within a normal range. These results suggest that scuba diving at 5 m of seawater for 30 min has no adverse effects, is safe and useful for improving health. However, further study must be performed to clarify the mechanism of elevated IL-8 level following scuba diving.

• Journal of Advanced Marine Engineering and Technology
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• 제35권1호
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• pp.118-125
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• 2011

현재 우리나라는 과학잠수가 시행되고 있지만 이에 대한 법적 근거가 없어 업무의 범위, 장비 사용, 일위대가 등의 문제로 혼란이 발생하고 있다. 본 논문에서는 이러한 혼란을 없애고 과학잠수 종사 잠수인력의 안전을 제고하기 위해 과학잠수 인증제도 도입을 제안하였다. 그리고 외국의 과학잠수 관련 법규들을 소개하였으며, 과학잠수의 업무 범위와 적용기술을 분석함으로써 과학잠수 활동에 있어서 위해 작업환경의 어려움과 고난도의 기술 필요성을 설명하였다. 끝으로 과학잠수 규정 제정 및 다이버 인증제도의 도입 필요성을 강조하고 인증제도 추진 방안을 제시하였다.

• 한국의류학회지
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• 제33권11호
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• pp.1683-1695
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• 2009

This study analyzes the production process of eight domestic companies that manufacture scuba diving suits for men with an emphasis on the level of consumer satisfaction in scuba diving suits purchases. One hundred fifty questionnaires were distributed and a total of 140 usable data were coded for further statistical analysis that includes descriptive statistics (frequency and ${\chi}^2$ test) through SPSSWIN 17.0. The results show that a majority of the domestic scuba diving suit companies were either small, manufactured products under original equipment manufacturer (OEM) brands, or were involved in the import business. Many of these companies have developed a local sizing system derived from a company database of customer sizing. As a result, different companies have different sizes that lead to confusion and complication among consumers in selecting the correct size for scuba diving suits. The results indicate that most high-priced diving suits are made of imported fabrics because they had superior quality, fitness, and thickness compared to domestic brands. The degree of consumer satisfaction with scuba diving suits was found to be low in comfort, stuffiness, and activity. Respondents indicated that they felt a little tightness in circumstances such as bust, wrist, and thigh in measurements of circumstances. On the other hand, the respondents showed a high degree of satisfaction with body fitness in scuba diving suits. Further research will clarify a standardized sizing system and develop patterns suitable for Korean men's scuba diving suit body sizes.

• International Journal of Naval Architecture and Ocean Engineering
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• 제4권3호
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• pp.211-227
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• 2012

To implement a combined discrete event and discrete time simulation such as submarine diving simulation in a distributed environment, e.g., in the High Level Architecture (HLA)/Run-Time Infrastructure (RTI), a HLA interface, which can easily connect combined models with the HLA/RTI, was developed in this study. To verify the function and performance of the HLA interface, it was applied to the submarine dive scenario in a distributed environment, and the distributed simulation shows the same results as the stand-alone simulation. Finally, by adding a visualization model to the simulation and by editing this model, we can confirm that the HLA interface can provide user-friendly functions such as adding new model and editing a model.

• 한국체육학회지인문사회과학편
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• 제55권6호
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• pp.551-560
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• 2016

이 연구는 스쿠버다이빙에 참여한 다이버들이 버디를 선택하는데 나타나는 결정과정을 지도자가 지각하는 측면에서 심층적으로 구명하는데 그 목적이 있다. 이를 위하여 연구참여자는 스쿠버다이빙 지도경력 5년 이상이며, 스쿠버다이빙클럽에서 지도자로 활동하고 있는 총 6명을 연구참여자로 선정하였다. 이와 같이 분석된 연구의 결과는 다음과 같다. 첫째, 버디를 선택하는데 있어서 교육을 통한 버디의 중요성 인식과 위험지각의 극복을 위한 동반자 인식을 통하여 버디선택의 필요성을 인식하고 있었다. 둘째, 버디를 선택하는데 있어서 레벨에 따른 기준 확립, 레스큐 다이버의 취득여부, 새로운 가치관을 통한 기준 확립을 통하여 버디선택의 기준을 확립하고 있었다. 셋째, 버디를 선택하는데 있어서 버디간의 상호작용, 버디와의 상호신뢰, 버디의 역할에 대한 자각을 통하여 버디선택의 결정요인으로 작용하고 있었다. 이상에서 알 수 있듯이, 스쿠버다이빙은 짝 다이빙을 하기 위해서 버디를 선정하여야 하며, 버디를 선정하는데 있어서 가장 중요한 요소는 상호간의 소통, 신뢰, 믿음 등과 같은 관계형성을 바탕으로 나타난다. 즉 버디와의 상호관계를 바탕으로 버디의 역할을 충분히 수행할 때 지속적인 버디로서의 관계형성이 이루어진다.

• 한국컴퓨터정보학회논문지
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• 제24권4호
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• pp.161-167
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• 2019

In this paper, we propose a study on awareness of first aid of scuba diver. In order to achieve this purpose, a total of 310 customers over the age of 20 were selected as study participants form diving pools and dive resort in Seoul, Gyeonggi, Gangwon, Gyeongsang province area using the convenience sampling method However, only data from 295 customers were used after screening the data for reliability. The instrument for data collection was a questionnaire, and descriptive statistics, inter-item consistency reliability, pearson chi-square test were conducted on the data using the SPSS 21.0 version statistical package program. The followings are the results: The level differ significantly according hemorrhage, abrasion, sprain, fracture, fever, arrest, airway obstruction. As a result of analyzing the difference of first aid recognition according to the level of scuba diver, we found bleeding patients, abrasions, sprains, fractures, high heat exposure patients, cardiac arrest patients. There was a statistically significant difference in the level of airway obstruction due to food.

• 한국안전학회지
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• 제26권2호
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• pp.42-47
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• 2011

Going underwater is supposed to begin with the history of human beings. At first it was confined to relatively shallow level, less than several meters by holding breath. Recently, deep level diving has been necessary for such purpose as construction, maritime salvage, military operations, research and sports by using SCUBA(self-contained underwater breathing apparatus) equipment. As one goes down into water, the pressure on the diver is increased due to water pressure with depth, usually 1 atm for each 10 m water level. In deep water, mixed gas or nitrox(EAN, enriched air nitrox) could be applied for the divers lest they should get disease due to high pressure. Of these, the former is usually composed of oxygen and inert gas like helium or hydrogen, the latter contains higher oxygen content than that in normal air in which the oxygen concentration is designated by the character "EAN" followed by vol. % of oxygen, for example, "EAN 40" contains 40% of oxygen. In this case, a victim was found at the 39 m below the sea surface breathing air and nitrox in cylinder wrongly marked as EAN 36, which was analyzed to contain 63% of oxygen by GC/TCD. The cause of death could not be exactly related with the oxygen content in the nitrox cylinder, because the accurate depth for the victim to dive was not known, even though the victim was just found at the depth of 39 m. However, the wrongly marked nitrox could be believed to be the main cause of the death at the depth unless there happened any other accident except that during diving.

• 대한조선학회논문집
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• 제45권6호
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• pp.656-668
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• 2008

When it comes to design and acquire underwater vehicles such as a submarine and a torpedo according to the process of SBA(Simulation Based Acquisition)/SBD(Simulation Based Design), it is necessary to predict the performance of interest precisely and to perform the test over and over again using the M&S(Modeling and Simulation) of the engineering and the engagement level. In this paper, we research the DEVS(Discrete Event System Specification) and DTSS(Discrete Time System Specification) formalism based standard model architecture for the underwater vehicle which can support both the heterogeneous level of the M&S(Engineering/Engagement) and the different system of the M&S(Discrete Event System and Discrete Time System). To validate this standard modeling architecture, we apply it to the submarine normal diving simulation.