• Proceedings of the Korean Institute of Industrial Safety Conference
• /
• 2001.11a
• /
• pp.89-93
• /
• 2001

산업이 발전함에 따라 신기술의 개발은 가속화되어 간다. 그러나 이에 수반한 새로운 위험성도 발생하게 된다. 신기술의 기업화에 있어서는 그에 대응하는 안전상 대책의 정비가 필요한데 현실에서는 위험성에 미지한 부분을 넘긴 채 기업화되어 간다. 그리고 사고가 발생해도 여러 가지 이유로 인해 원인 규명도 어렵고 사고의 상세한 공표는 이루어지지 않는다. 이러한 이유로 반도체 산업의 안전 기술의 확립까지 상당한 세월이 필요했다.(중략)

• Korean Journal of Ichthyology
• /
• v.13 no.3
• /
• pp.195-200
• /
• 2001

Psenes maculatus and P. cyanophrys of family Nomeidae were collected for the first time off the coast of Tongyeong, Kyongsangnam-do, Korea. Specimens were catched with drifting seaweed patches on June and July, 1998. Young Psenes maculatus has six black bands ('<' shape) on the body, and 'Ttimul-reung-dom' is proposed as the Korean name. Psenes cyanophrys differs from P. pellucidus in having a compressed oval body shape scales on the check, and 16 longitudinal lines on the body. 'Jul-mu-nui-mul-reung-dom' is proposed as the Korean name.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
• /
• v.9 no.3
• /
• pp.106-109
• /
• 2004

In-situ observational works had been done for the investigation of Cochlodinium polykrikoides cell distributions and abundances off the coast of Busan, Jinhae Bay, and Namhae to Tongyong area in the early June, 2004. The surface water of 11 was concentrated by passing through ${\Phi}$ 10 $\mu\textrm{m}$ mesh and cellular morphological characteristics of the species in the sample was observed under light microscope equipped with digital camera on the vessel. C. polykrikoides cells showed highest cell numbers ranging from 60 to 660 cells/1 at Jinhae Bay. Cell counts at offshore area of Busan ranged from 45 to 330 cells/1. However, no cell was found in the water between Namhae and Tongyong. C. polykrikoides found during the cruise had a large bright red and round cellular materials in one cell and two-celled chain of C. polykrikoides. The red material decreased as C. polykrikoides formed long chains through cell divisions.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.1 no.1
• /
• pp.3-12
• /
• 1997

In this study, in Tongyeong area the distribution of marine products that were produced and treated through fishing and cultivating industry and the trend of main fisheries were investigated for fisheries distribution system and fisheries official circles, and then a structural model of fisheries distribution system for direct transaction was suggested under internet environment, which is an important scheme offering a necessary information rapidly and practically to both producers and consumers. Database system was structured according to distributed process. An op-elative scheme were suggested for sewers of local area information center, complementing functions to exceed each server's ability.

• Journal of the Korean Home Economics Association
• /
• v.50 no.3
• /
• pp.83-93
• /
• 2012

In Tongyeong Ogwangdae, the characters use many ornaments and these ornaments represent different meanings. The following results were observed from the analysis that was carried out, to find the symbolic meanings of ornaments and props, and they- were used in Tongyeong Ogwangdae. The ornaments and props used in the traditional mask play are used to effectively represent the roles, characters, situations, and certain parts of body. They put each character in a psychological mood that enables him or her to perform his or her role more realistically. This in turn moves the audience. The ornaments and the props that were used in Tongyeong Ogwangdae help the audience to understand the characters and the hidden meaning of the play. These ornaments and props can be classified into three categories namely, one representing the character's social status, one representing the role of the character, and one indicating the flow of the play.

• Korean Journal of Ichthyology
• /
• v.35 no.2
• /
• pp.101-112
• /
• 2023

The survey was conducted to find out the temporal variation of the fish species in the eelgrass beds in Punghwa-ri, Tongyeong-si, Gyeongsangnam-do from April 2021 to March 2022. In comparison with the results of previous study conducted 10 years ago, there was a significant difference in species composition and dominant species. In addition, this study found that subtropical fish species such as Siganus fuscescens, Plotosus lineatus, Petroscirtes breviceps, which were not reported in the previous study.

• Korean Journal of Ichthyology
• /
• v.36 no.3
• /
• pp.282-287
• /
• 2024

The Yellow-dotted butterflyfish, Chaetodon selene is newly reported from Korea based on a single juvenile specimen (28.6 mm SL) collected from rocky reef of the Jwasarido Island, southern Korea. The present specimen represents the first reliable record of C. selene from Korea supported by a voucher specimen. The specimen is characterized by having 12 spines of dorsal fin, and a dark lunate-shaped marking on posterior half of body as well as a vertical black bar crossing eye. A new Korean name, "No-rang-jeom-na-bi-go-gi", is adopted for the species.

• Economic and Environmental Geology
• /
• v.34 no.6
• /
• pp.507-522
• /
• 2001

At the Tongyeong mine, quartz, rhodochrosite (kutnahorite), muscovite, illite, pyrite, galena, chalcopyrite. sphalerite, acanthite, and hessite are the principal vein minerals. They were deposited under epithermal conditions in two stages. Ore mineral assemblages and associated gangue phases in stage can be clearly divided into two general associations: an early cycle (band) that appeared with introduction of most of the sulfides and electrum, and a later cycle in which base metal and carbonate-bearing assemblages (mostly rhodochrosite) became dominant. Tellurides and some electrum occur as small rounded grains within subhedral-to euhedral pyrite or anhedral galena in stageII. Sulfide mineralization is zoned from pyrite to galena and sphalerite. We have used computer modeling to simulate formation of four stages of vein genesis. The reaction of a single fluid with andesite host rock at 28$0^{\circ}C$, isobaric cooling of a single fluid from 26$0^{\circ}C$ to 12$0^{\circ}C$, and boiling and mixing of a fluid with both decreasing pressure and temperature were studied using the CHILLER program. Calculations show that the precipitation of alteration minerals is due to fluid-andesite interaction as temperature drops. Speciation calculations confirm that the hydrothermal fluids with moderately high salinities and pH 5.7 (acid), were capable of transporting significant quantities of base metals. The abundance of gold in fluid depends critically on the ratio of total base metals and iron to sulfide in the aqueous phase because gold is transported as an Au(HS)$_2$- complex, which is sensitive to sulfide activity. Modeling results for Tongyeong mineralization show strong influence of shallow hydrogenic processes such as boiling and fluid mixing. The variable handing in stageII mineralization is best explained by maltiple boilings of hydrothermal fluid followed by lateral mixing of the fluid with overlying diluted, steam-heated ground water. The degree of similarity of calculated mineral assemblages and observed electrum composition and field relationships shows the utility of the numerical simulation method in identifying chemical processes that accompany boiling and mixing in Te-bearing Au-Ag system. This has been applied in models to narrow the search area for epithermal ores.

• Journal of fish pathology
• /
• v.24 no.3
• /
• pp.197-204
• /
• 2011

The edible ascidian Halocynthia roretzi is a commercially important fisheries resource in Korea. However, for the last several years, outbreaks of mass mortalities of the species have been occurring along the south and east coasts of Korea, where most ascidians are produced. Although it is known that tunic-softness syndrome is associated with these mortality events, the agent causing the syndrome has not yet been confirmed. To determine the agent causing tunic-softness syndrome, healthy and diseased ascidians were collected in March 2011 from Tongyeong, on the south coast of Korea, and were used for biological and pathological investigations. The results showed that diseased ascidians exhibited remarkably reduced body fluid, fatness index, and tunic index compared with healthy specimens. Interestingly, bi-flagellated protozoans were observed specifically in the tissue imprints and tunic cultures of diseased ascidians at an occurrence rate of 97.5%. Histological observation showed that the thickness of the tunics of diseased ascidians was reduced by half, and irregular structure and breakdown of the tunic fiber bundles were observed. In particular, flagellate-like cells were observed in the diseased ascidians. Our study clearly shows that bi-flagellated protists are present only in the softened ascidians, suggesting that the flagellates are partly or entirely associated with soft-tunic syndrome. Accordingly, further investigations to verify the effects of the flagellates found in the present study on soft-tunic syndrome should be conducted.

• Journal of Food Hygiene and Safety
• /
• v.20 no.4
• /
• pp.205-210
• /
• 2005

The content of the trace metals in the cultured and wild fishes were determined. The tested fishes were genuin porgy (Pagrus major) and black porgy (Acanthopogrus schlegeli). The samples of the cultured and wild fishes were collected from slices of raw fish in shops, during 2003 to 2004. The samples were digested with acids, then analyzed by ICP (inductively Coupled plasma Spectrometer) and AAS (Automic Absorption Spectrometer) for the content of lead (Pb), cadmium (Cd), arsenic (As), copper (Cu), manganese (Mn) and zinc (Zn). The content of mercury (Hg) was determined using mercury analyzer. The mean contents of trace metals in cultured and wild fish was 0.031,0.047mg/kg far total-mercury,0.321,0.407 for Pb, 0.048,0.063 for Cd, 1.006, 1.132 for As, 0.467,0.806 for Cu, 0.233, 0.293 for Cr, 9.69, 12.20 for Zn,0.798, 0.624 mg/kg far Mn, respectively. The content of all the trace metals except manganese in wild fish was more than that in cultured fish. The highest level of total-mercury, lead, cadmium, zinc, chromium and arsenic in the samples analyzed were all below the quarantine limit of Korean regulation and guideline established by the U.S. Food and Drug Administration f3r human consumption. The level of the trace metals in the samples was negligible, which could be endogenous. Our data obtained in this study showed that the average weekly intakes of lead, cadmium and mercury from cultured and wild fishes takes about $6\∼13\%$ of Un(Provisional Tolerance Weekley Intakes) that FAO/WHO Joint Food Additive and Contaminants Committee has set to evaluate their safeties.