• Korean Journal of Environmental Agriculture
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• v.26 no.2
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• pp.186-191
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• 2007

The objective of this research was to assess the reliability of data and to improve nuclear analytical techniques concerning the Domestic Radioactivity Intercomparison program for environmental radioactivity monitoring of Jeju from 1998 to 2006. Gross beta for filter papers and water samples was determined, and gamma nuclides for natural and artificial nuclides in soil and water samples were analyzed. The gross beta activity of all samples except for the water samples of 1998 and 1999 showed a good agreement within the confidence intervals. In gamma nuclides, $^{40}K$ and $^{137}Cs$ of soil samples and most nuclides in the water samples, with the exception of several nuclides, were evaluated to be reliable. Based on these results, it is considered that a reliable method for the analysis and monitoring of environmental radioactivity were established, which may play an important role in case of emergency radiation accident.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2006.06b
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• pp.247-253
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• 2006

NSW in Australia is famous for beautiful beaches and water activities. There are now almost 450,000 people who hold a NSW power boat driving licence and 200.000 registered boat owners. The popularity of boating continues to grow with licence and registration figures increasing by 3-4 per cent each year. This is a survey about the guide book for boating licence in NSW. This study outlines the essential information such as the types of licence, registration of vessels, choosing the right boat, maintain vessel, safety equipment and preparing for a safe boating trip. In addition, it touches the technical side like boat handling, water traffic rules, navigation markers, emergency and the ways to avoid them. Recently, more and more people are interested in boating. It forms an important part of recreational and tourism activities. To manage these demands effectively and to provide the orderly and safe leisure hours, it is necessary to induce more organizational and serviceable boating licence system.

• Journal of Korea Water Resources Association
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• v.37 no.10
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• pp.837-844
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• 2004

In this study, the efficient reservoir operation is studied by comparing results from reservoir operation using a basin drought forecasting and warning system with an existing reservoir operation rule. As a result, it is found that the reliability and average annual storage of reservoir operation using a basin drought forecasting and warning system and release coefficients is better than those of reservoir operation using the existing operation rule. The release coefficients for Yongdam dam located in the Geum river basin selected as a case study are found to be the most effective for the value of 0.95 for the drought watch, 0.9 for the drought warning and 0.85 for the drought emergency. The reservoir operation using a drought forecasting and warning enables the use of the limited water resources effectively during drought and will contribute the national water resources management.

• Proceedings of the Korea Water Resources Association Conference
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• 2016.05a
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• pp.195-195
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• 2016

Kon - Ha Thanh River basin is the largest and the most important river basin in Binh Dinh, a province in the South Central Coast of Vietnam. In the lower rivers, frequent flooding and inundation caused by heavy rains, upstream flood and or uncontrolled flood released from upstream reservoirs, are very serious, causing damage to agriculture, socio-economic activity, human livelihood, property and lives. The damage is expected to increase in the future as a result of climate change. An advanced flood warning system could provide achievable non-structural measures for reducing such damages. In this study, we applied a modelling system which intergrates a 1-D river flow model and a 2-D surface flow model for simulating hydrodynamic flows in the river system and floodplain inundation. In the model, exchange of flows between the river and surface floodplain is calculated through established links, which determine the overflow from river nodes to surface grids or vice versa. These occur due to overtopping or failure of the levee when water height surpasses levee height. A GIS based comprehensive raster database of different spatial data layers was prepared and used in the model that incorporated detailed information about urban terrain features like embankments, roads, bridges, culverts, etc. in the simulation. The model calibration and validation were made using observed data in some gauging stations and flood extents in the floodplain. This research serves as an example how advanced modelling combined with GIS data can be used to support the development of efficient strategies for flood emergency and evacuation but also for designing flood mitigation measures.

• Nuclear Engineering and Technology
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• v.55 no.8
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• pp.3046-3053
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• 2023

Radon is a naturally occurring carcinogenic agent, poses a serious health hazard when inhaled or ingested in significant amounts. The water of the Padma river will be used as a tertiary coolant for the soon-to-be-commissioned 'Rooppur Nuclear Power Plant'. Hence, it is important to assess the radiological status of the river prior to the commission of this power plant. Therefore, for the first time, 25 samples of water were collected from various locations of the Padma River and analyzed for radon concentration using the RAD H₂O (DURRIDGE) radon monitoring device. The radon concentrations were found in the range from 0.077 ± 0.036 to 0.494 ± 0.211 Bq/L with a mean of 0.250 ± 0.093 Bq/L. All the concentrations were found to be below the recommended limits of WHO (100 Bq/L) and USEPA (11.1 Bq/L). The mean annual effective dose due to the radon exposure via inhalation and ingestion pathways were 0.638 µSv/y and 0.629 µSv/y, respectively, which were all well below the annual effective dose recommended by WHO (0.1 mSv/y). Since Bangladesh lacks a national safety limit of radon in water, this pioneering study provides baseline data on radon levels for the environment around Rooppur Nuclear Power Plant.

• Asian-Australasian Journal of Animal Sciences
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• v.28 no.10
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• pp.1471-1478
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• 2015

The present study aimed to assess the effect of dietary substitution of soybean meal (SBM) with dehulled-micronized faba bean (Vicia faba var. minor) in guinea fowl broilers on their growth traits, carcass quality, and meat fatty acids composition. In this trial, 120 day-old guinea fowl keets were randomly assigned to two treatments which were fed from hatch to 12 weeks of age. Birds were fed two wheat middlings-based diets comprising of a control treatment which contained SBM (78.3 g/kg) and a test diet containing dehulled-micronized faba bean (130 g/kg) as the main protein source. Substituting SBM with faba bean had no adverse effect on growth traits, dressing percentage, or breast and thigh muscles relative weight of the guinea fowls. Conversely, a decrease (p<0.05) of abdominal fat was found in guinea fowls fed the faba bean-diet. Breast muscle of birds fed faba bean had higher $L^*$ score (p<0.05) and water-holding capacity (p<0.05) than the SBM control diet. Meat from guinea fowls fed faba bean had less total lipids (p<0.05) and cholesterol (p<0.01), and higher concentrations of phospholipids (p<0.01). Feeding faba bean increased polyunsaturated fatty acid concentrations in breast meat and decreased the saturated fatty acid levels. Moreover, dietary faba bean improved the atherogenic and thrombogenic indexes in guinea fowl breast meat. Results indicated that substitution of SBM with faba bean meal in guinea fowl diet can improve carcass qualitative traits, enhancing also meat lipid profile without negatively affecting growth performance.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2005.11a
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• pp.55-60
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• 2005

Ubiquitous computing environment means the computing environment that has taken its position so closely with the ordinary living so much like air or water. In building up the U-Korea, one of the important issues is the social issue from the drastic increase of senior population. The contemporary society has its distinct trend in increase of senior household following the nuclear family orientation, increase of working parents with the advancement of women in society, unable to support seniors for long distance or short distance of business trip and other reasons that the need of senior welfare has been ever more felt. Accordingly, the Ministry of Government Affairs and Home Administration has developed the wireless paging system to make prompt response system for 119 Rescue when the single senior is encountered with emergency situation that is has been widely provided for the socially neglected people such as single senior, the disabled persons and others. Currently, the wireless paging system is operated as the sub-system for emergency rescue information system, but due to the lack of reliability of product, problems of terminal portable transmitter, receptor and others, rejection of beneficiary and lack of knowledge in use, insufficient management and supervision of managing officers, the efficiency has been declined that there is a need of development for the system. Therefore, this study proposes the context aware information structure of the subject of ubiquitous wireless paging system required for the development of the wireless paging system model of ubiquitous environment that improved the problems of currently operated wireless paging system.

• Journal of the Korean Society of Hazard Mitigation
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• v.7 no.4
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• pp.97-105
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• 2007

This study has been focus to certify the run-up heights, losses of human lives and property damages due to the 1983 Central East Sea tsunami. We have conducted the interview with indigenous inhabitant and field surveying at the Imwon port, East sea in Korea in order to inquire into the state of things occurred during that period. It is also investigated how much well they are aware of the emergency action plan including the evacuation system. Base on the reliable interviews, we selected and surveyed 10 places at the Imwon port, where the historical maximum overflowing occurred due to the 1983 Central East Sea tsunami. The measured run-up heights are approximately $3.3m{\sim}4.0m$ at the selected 10 places and it is found that the sea water ran over the banks in Imwon stream about 700m upstream from the Imwon port. From this study we can suggest supplementing the present emergency action plan and supply the state-of-the-art inundation map.

• Korean Journal of Plant Resources
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• v.9 no.1
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• pp.41-46
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• 1996

This study was carried out to gain the bagic information about agronomic characteristics and usage of Lactuca indica L. Cultivated at two different sowing dates at Green house of chungnam Rural Development administration from 1990 to 1995. Days to emergence of Lactuca at the delayed sowing of 30th May was promoted by four day than that of the early sowing of 15th Feburary. At the early sowing Ratio of emergency was appeared to be high than that of the delayed and Ratio of germination of Lactuca at $25^{\circ}C$ showed to be high as 89% especially, germination and growing and fresh weight were high at natural water soaking treatment than convential method. Length of leaf of Lactuca treated at Ga 50 and 100ppm was higher as 12 to 16cm than 36cm of check and fresh weight was also high as 21-56% than check in test of table guality fresh leaf of Lactuca was appered to be same favorite as perilla leaf, lettuce especially the usage of Lactuca grown about two to three weeks was appeared to be good.

• The Korean Journal of Emergency Medical Services
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• v.5 no.1
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• pp.165-175
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• 2001

The purpose of this study is to investigate the actual status of occurrence of near-drowning accident by regions, sex, causes, places, months and days through Bureau of Statistics for 3 years from 1998 to 2000. 1. As the results of the drowned persons for 3 years from 1998 to 2000, the total number of them were 5,058 persons and 1,686 persons the yearly mean experienced near-drowning accidents. In the actual status of drowned persons by regions, 255 persons(15.1%) of Kyung-Ki regions are highest, 27 persons(1.62%) of Che-Ju regions are lowest. 2. In the actual status of drowned persons by sex, the yearly mean 1324 male persons(78.58%) and 362 female persons(21.42%) of 1,686 persons the yearly mean are drowned and the number of male drowned persons is 3.7 times higher than that of female. 3. In the actual status of drowned persons by age, among 1,686 drowned persons the yearly mean, 467 persons between fifteen and nineteen are drowned(9.23%). 4. In the actual status of drowned persons by causes, the major causes due to the poor swimming skills are 43.4%. 5. In the actual status of drowned persons by places, the major places are rivers and riversides(50.0%). 6. In the actual status of drowned persons by months, among 1,686 drowned persons the yearly mean, 319.33 persons(18.94%) on the July and 403.66 persons(23.94%) on the August had the highest the drowning accident. It is one of major cause of seasonal accidental death especially in summer. 7. In the actual status of drowned persons by day of the week, among 1,686 drowned persons the yearly mean, most of near-drowning accidents are happened on weekend(56.62%).