• 생약학회지
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• 제35권4호통권139호
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• pp.276-282
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• 2004

This study has been conducted to investigate the amount of residual sulfur dioxide for herbal medicines of 30 species which are purchased in 13 different regions (Bonghwa, Busan, Chunju, Jecheun, Kwangiu, Keumsan, Seoul, Taeku, Cheungdu, Xian, Beijing, Tokyo and Osaka). The sulfur dioxide residues were determined in the collected 386 samples by the modified Monier-Williams method. The residues of sulfur dioxide in 386 samples ranged from ND (under detection limit) to 2808 ppm. The sulfur dioxide in Cassiae Semon, Cinnamomi Ramulus, Cervi Cornu, Hoelen, Crataegi Fructus, Artemisiae Argyi Herba, Scolopendrae Corpus, Schizandrae Fructus and Cyperi Rhizoma were detected under the detection limit regardless of the collected regions. The sulfur dioxide residues in herbal medicines collected in domestic regions were relatively lower than those in foreign regions. There are no standards for sulfur dioxide residual limits of herbal medicines in Korea. This results will provide the scientific basis for the standardization of sulfur dioxide residues in Korea Pharmacopoeia.

• 대한지리학회지
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• 제48권4호
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• pp.533-544
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• 2013

이 연구의 목적은 2000~2010년 사이에 부산 대도시권의 통근권이 어떻게 변화해왔는지를 분석하는 것이다. 이를 위해 연계성 지표를 사용하여 부산 대도시권을 설정한 후, 요인분석을 사용하여 부산 대도시권의 통근권 변화를 분석하였다. 부산 대도시권의 통근권은 동부산권, 서부산권, 김해 창원권, 울산권 등 4개로 구분되었다. 서부산 지역의 통근권은 축소되고 있으며, 지리적으로 인접한 강서구 북구 사상구와 김해 창원 지역의 통근연계구조는 강화되고 있다. 이는 서부산을 출발지로, 김해 창원을 도착지로 하는 역통근 통행이 증가한 결과이다. 울산 지역은 부산 대도시권 내에서 독립된 통근권을 형성하고 있다.

• 해양환경안전학회지
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• 제16권1호
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• pp.115-123
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• 2010

본 연구는 부산의 지역해양산업의 육성과 지역경제 활성화 차원에서 해양산업박람회의 개최 논리와 효과적인 실행 방안을 구상하고자 했다. 본 연구가 다루고자 하는 해양산업박람회는 기존의 모든 해양산업들을 포괄하는 종합전시회로서의 위상과 의미를 담고 있다. 그러므로 향후 부산에서 진정으로 개최되어야 할 박람회는 해양산업박람회가 되어야 한다는 연구의 취지와 목적을 가지고 있다. 이러한 취지와 목적에 도달하기 위해 본 연구에서는 순차적으로 부산의 해양산업 환경과 비중을 검토하고, 기존 전시회의 현황과 문제점을 살펴본 다음, 해양산업체에 대한 의견조사를 통해 해양산업박람회의 합리적인 개최논리와 방안을 결론으로 제시하였다.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제51권10호
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• pp.506-510
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• 2002

In this paper, we study on the mutual characteristics between transmitting efficiency of pulse energy and wall plug consumed power of non-thermal Plasma for removing environmental pollutive gas of coal plant. To obtain high pulse energy of our system, we used MPC(magnetic pulse compressor) of power switch and tested their characteristics by adjusting electrode length of reactor and charging voltage in capacitor. As a result, we obtained consumed power of wall plug and a compressed pulse of voltage 110kV, rising time 500ns. Impedance of load on increasing electrode length was decreased, but electrical efficiency was increased. These results indicate we can control critical voltage of pulse corona and electrical efficiency of economic cost in power plant.

• 대한족부족관절학회지
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• 제23권1호
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• pp.35-38
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• 2019

Lipoma arborescens or synovial lipomatosis is a rare disorder that is characterized by mature fat infiltration of the hypertrophic synovial villi, most frequently affecting the supra-patellar pouch of the knee. This paper presents a case of lipoma arborescens of the ankle joint bilaterally in an adult patient with involvement of both the intra-articular synovium and the synovial sheath of the tendons around the ankle.

• 한국환경과학회지
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• 제21권9호
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• pp.1097-1113
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• 2012

Ozone is the secondary photochemical pollutant formed from ozone precursor such as nitrogen dioxide and non-methane volatile organic compounds(VOCs). The ambient concentration of ozone depends on several factors: sunshine intensity, atmospheric convection, the height of the thermal inversion layer, concentrations of nitrogen oxides and VOCs. Busan is located in the southeast coastal area of Korea so the ozone concentration of Busan is mainly affected from the meteorological variables related to the sea such as sea breeze. In this study the ozone concentrations of Busan in 2008~2010 were used to analyse the cause of the regional ozone difference in eastern area of Busan. The average ozone concentration of Youngsuri was highest in Busan however the average ozone concentration of Gijang was equal to the average ozone concentration of Busan in 2008~2010. The two sites are located in eastern area of Busan but the distance of two sites is only 9km. To find the reason for the difference of ozone concentration between Youngsuri and Gijang, the meteorological variables in two sites were analyzed. For the analysis of meteorological variables the atmospheric numerical model WRF(Weather Research and Forecasting) was used at the day of the maximum and minimum difference in the ozone concentration at the two sites. As a result of analysis, when the boundary layer height was lower and the sea breeze was weaker in Youngsuri, the ozone concentration of Youngsuri was high. Furthermore when the sea breeze blew from the south in the eastern area of Busan, the sea breeze at Youngsuri turned into the southeast and the intensity of sea breeze was weaker because of the mountain in the southern region of Youngsuri. In that case, the difference of ozone concentration between Youngsuri and Gijang was considerable.

• 한국환경과학회지
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• 제29권2호
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• pp.177-189
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• 2020

We analyzed the recent characteristics of Particulate Matter (PM) including PM₁₀ (PM with diameter of less than 10 ㎛) and PM_2.5 (PM with diameter of less than 2.5 ㎛) observed in Busan metropolitan area, and compared them with those measured in Seoul metropolitan area. This analysis includes the monthly, seasonal, and annual variations and differences, in emissions and chemical compositions observed in both Busan and Seoul areas. Synoptic meteorological conditions were investigated at the time when high PM concentrations occurred in each of the two areas. The results showed clearly decreasing trends of annual mean concentrations with strong seasonal variations: lower in summer and higher in winter in both areas. In comparison with Seoul, the seasonal variation in Busan demonstrated relatively lower, but showed greater summer fluctuations than in Seoul metropolitan area. This is implying the importance of secondary generation of PM in summer via active photochemical reaction in Busan area. In high concentration days, Busan's chemical composition of sulfate was higher than that of nitrate in summer, whereas nitrate was higher than sulfate in Seoul. The ratios of NO₃^- to SO₄^2-(N/S ratio) showed lower in Busan approximately by a factor of 1/2(half of N/S ratio) in Busan compared with that in Seoul. Others such as synoptic characteristics and emission differences were also discussed in this study.

• Asian Journal of Atmospheric Environment
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• 제5권1호
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• pp.41-46
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• 2011

The port of Busan is the fifth busiest container port in the world in terms of total mass of 20-foot equivalent units transported. Yet no attempts have been made to estimate the greenhouse gas (GHG) emissions from the port of Busan by accounting for all port-related activities of the various transportation modes. With these challenges in mind, this study estimates the first activity-based GHG emissions inventory in the port of Busan, which consists of four transportation modes: marine vessels, cargo-handling equipment, heavy-duty trucks, and railroad locomotives. The estimation results based on the most recent and complete port-related activity data are as follows. First, the average annual transportation GHG emission in the port of Busan during the analysis period from 2000 to 2007 was 802 Gg $CO_2$-eq, with a lower value of 773 Gg $CO_2$-eq and an upper value of 813 Gg $CO_2$-eq. Second, the increase in the transportation-related GHG emissions in the port of Busan during the analysis period can be systematically explained by the amount of cargo handled ($R^2$=0.98). Third, about 64% of total GHG emissions in the port of Busan were from marine vessels because more than 40% of all maritime containerized trade flows in the port were transshipment traffic. Fourth, approximately 22% of the total GHG emissions in the port of Busan were from on-road or railroad vehicles, which transport cargo to and from the port of Busan. Finally, the remaining 14% of total GHG emissions were from the cargo handling equipment, such as cranes, yard tractors, and reach stackers.

• 수산해양교육연구
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• 제26권2호
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• pp.368-381
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• 2014

The purpose of this study is to diagnose the lifelong education promotion system in Busan and to establish a desirable promotion system. In the study, we search for the optimal alternative to manage lifelong education exclusive organization(Busan Institute for lifelong Education) and seek ways to vitalize the lifelong education promotion system in Busan. The focus is also placed on completing a network-type governance system by strengthening the connection and cooperation among the parties. In order to make the promotion system function efficiently, the vitalizing methods of lifelong education promotion system can be roughly categorized into some kind as follows : strengthening the network between the interested parties and establishing their roles, restructuring legal as well as administrative and financial support system; enhancing education and public relations; intensifying local infrastructure of lifelong education; and boosting accessibility and expanding exchange and cooperation.

• Clinical and Experimental Pediatrics
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• 제55권6호
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• pp.215-218
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• 2012

Mucoceles are common benign cystic lesions of the oral cavity that develop following extravasation or retention of mucous material from the major or minor salivary glands. Mucoceles are usually located in the lower lip (60 to 70% of cases), and the floor of the mouth is only involved in 6 to 15% of cases. Submandibular gland mucocele is extremely rare but should be considered in the differential diagnosis of swelling at the submandibular triangle in young children. We present the rare case of a 16-month-old child who was diagnosed with bilateral submandibular gland mucocele, presenting as serial swellings in both submandibular regions. We removed the cystic mass with the submandibular and sublingual glands to prevent recurrence.