• The Korean Journal of Emergency Medical Services
• /
• v.9 no.1
• /
• pp.33-41
• /
• 2005

In Korea, the number of those who were drowned of the dead by 'accident and injury' ranked the third of causes of death is over 2,300 people a year. So the Ministry of Home Affairs arranged '119 drowning rescue team' at frequent occurrence regions of drowning temporarily as a part of drowning rescue measures during every summer season and made perfection more perfect for safety control and rescue services at prevention areas of accidents. However, considering that the number of professional drowning rescuers is small and it is managed temporarily only for summer, the placement of special rescue team equipped with professional education and qualification should be ensured and quick lifesaving and first-aid treatment should be conducted, since much time is required to arrive at accident place after receiving accident report at 119 office, rapid rescue and relief have not been achieved. Therefore, the placement of special rescue team should be increased for reducing the personal damages by considering regional characteristics and in particular placement of more drowning rescue teams in Jeonnam region which has more seas and rivers is needed This study aims at analyzing relief activities and statistics to cope with water accidents and achieve qualitative growth of first-aid services, examining actual conditions of water accident relief team and personnel assignment, providing first-aid services of good quality and establishing improvement methods to increase operation of relief team.

• Nuclear Engineering and Technology
• /
• v.55 no.6
• /
• pp.2158-2165
• /
• 2023

Marine radioactivity monitoring is critical for taking immediate action in case of unexpected nuclear accidents at nuclear facilities located near coastal areas. Especially when the level of contamination is not predictable, mobile monitoring systems will be useful for wide-area ocean radiation survey and for determination of the level of radioactivity. Here, we used a silicon photomultiplier and a high-efficiency GAGG crystal to fabricate a compact, battery-powered gamma spectroscopy that can be used in an ocean environment. The developed spectroscopy has compact dimensions of 6.5 × 6.5× 8 cm³ and weighs 560 g. We used LoRa, a low-power wireless protocol for communication. Successful data transmission was achieved within 1.4 m water depth. The developed gamma spectroscopy was able to detect radioactivity from a ¹³⁷Cs point source (3.7 kBq) at a distance of 20 cm in water. Moreover, we demonstrated an unmanned radioactivity monitoring system in a real sea by combining unmanned surface vehicle with the developed gamma spectroscopy. A hidden ¹³⁷Cs source (3.07 MBq) was detected by the unmanned system at a distance of 3 m. After successfully testing the developed mobile spectroscopy in an ocean environment, we believe that our proposed system will be an effective solution for mobile real-time marine radioactivity monitoring.

• Proceedings of the Safety Management and Science Conference
• /
• 2007.11a
• /
• pp.55-68
• /
• 2007

Because of not accepted on escape using elevators in fire emergency has some background. In the background elevator hoistway has turn into smoke spread route in fire. The escape that used an elevator was not able to make ends meet; of the big confusion is expected that cannot control the escape adequately, and do that elevator facilities breakdown possibility by the fire water, the escaper shut in car. Therefore ban on elevator service in fire time as a general rule. Recently, a few company promote super high-rise architecture in the country, a fire disaster prevention and human life safety measures preparation for PBD(A Performance Based Fire Protection Design) are studied concretely. And there is the escape example in fire time that used an elevator in the foreign country. You must promote it so that the escape measures that used enclosed stairway and an elevator in charge of a function of the mutual supplement. The result of this research can be used for establishing the standard and regulation for using elevators in fire emergency.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
• /
• v.18 no.3
• /
• pp.202-210
• /
• 2006

In the nuclear power plant, emergency core coolant system (ECCS) is furnished at reactor coolant system (RCS) in order to cool down high temperature water in case of emergency. However, in this coolant system, thermal stratification phenomenon can be occurred due to coolant leaking in the check valve. The thermal stratification produces excessive thormal stresses at the pipe wall so as to yield thermal fatigue crack (TFC) accident. In the present study, when the turbulence penetration occurs in the branch pipe, the maximum temperature differences of fluid at the pipe cross-sections of the T-branch with thermal stratification are examine.

• Journal of Medicine and Life Science
• /
• v.18 no.2
• /
• pp.31-34
• /
• 2021

The pharmacokinetic properties of transdermal nicotine patches (TNPs) are different from those of other routes of nicotine administration; further, acute nicotine poisoning by TNPs may present with different clinical features. In the present report, we describe the case of a 23-year-old woman who was admitted to emergency department (ED) at Jeju National University Hospital with loss of consciousness. Five hours before the ED visit, she used multiple TNPs to attempt suicide. Initially, nausea and vomiting occurred, and the symptoms worsened over time. We immediately removed the TNPs, and the application sites were gently washed with sterile water. The patient's level of consciousness gradually improved, and she fully recovered an altered mental status 5 hours later. Her initial urinary cotinine level was 324 ng/mL. Physicians should be aware that acute nicotine poisoning by TNPs can cause various toxic symptoms.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
• /
• 2000.11a
• /
• pp.97-102
• /
• 2000

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
• /
• 2001.11a
• /
• pp.134-139
• /
• 2001

• Proceedings of the Korean Nuclear Society Conference
• /
• 1999.10a
• /
• pp.75.1-75
• /
• 1999

• The Journal of Korean Medical History
• /
• v.35 no.1
• /
• pp.69-86
• /
• 2022

This study examined guange (關格) in Yixuerumen (醫學入門) from a new perspective and evaluated its value in terms of emergency medicine. We compared and analyzed the definition, symptoms, and treatment methods of guange in Yixuerumen with related clinical presentations in modern medicine. Guange includes nausea and vomiting, dysphagia, dysuria, and constipation without diarrhea. A representative disease related to dysuria is uremia, while one related to constipation, nausea, and vomiting is enterocleisis, and and a third related to dysphagia is chronic esophagitis and esophagus cancer. Li Chan, the author of Yixuerumen, recognized guange as an emergency of serious eating and elimination disorder as various symptoms of diseases (病症) gradually get worse from the perspective of external diseases (外感病) and miscellaneous diseases (雜病) and handled it in various ways including yin-tonifying medicinals (補陰藥), qi-tonifying medicinals (補氣藥), qi-regulating formulas (理氣劑), phlegm-dispelling formulas (去痰劑), and "water rising, fire falling" formulas (水升火降) in addition to emetic formulas (催吐劑), diuretic formulas (滲利劑), and interior-attacking formula (攻裏劑). Concepts like guange in Yixuerumen were somewhat useful when handling the applicable emergencies at the level of then medical treatment.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
• /
• v.29 no.12
• /
• pp.654-662
• /
• 2017

When emergency core cooling system (ECCS) is operated during loss of coolant accident (LOCA) in a pressurized water reactor (PWR), pressurized thermal shock (PTS) phenomenon can occur as cooling water is injected into a cold leg, mixed with hot primary coolant, and then entrained into a reactor vessel. Insufficient flow mixing may cause temperature stratification and steam condensation. In addition, flow vibration may cause thermal stresses in surrounding structures. This will reduce the life of the reactor vessel. Due to the importance of PTS phenomenon, in this study, calculation was performed for Test 1 among six types of OECD/NEA ROSA tests with ANSYS CFX R.17. Predicted results were then compared to measured data. Additionally, because temperature difference between the hot coolant at the inlet of the cold leg and the cold cooling water at the inlet of the ECCS injection line is 200 K or more, buoyancy force due to density difference might have significant effect on thermal-hydraulic characteristics of flow. Therefore, in this study, the necessity to include buoyancy force term in governing equations for accurate prediction of single phase thermal stratification in both cold legs and downcomer by ECCS injection was numerically studied.