보중익기탕이 알레르기 비염 유발 白鼠의 과립구 및 조직학적 변화에 미치는 효과

김종성,심성용,엄유식,남혜정,김경준,Kim Jong-sung,Sim Sung-yong,Um Yu-sik,Nam Hae-jeong,Kim Kyung-jun 대한한의진단학회 2004 大韓韓醫診斷學會誌 Vol.17 No.1

Allergic rhinitis is an allergic reaction characterized by sneezing, coughing, itchy nose, mouth and throat, congestion and/or nasal discharge. The offending allergens are usually pollens, molds, dust mites and animal allergens. We aimed to observe inhibitory effects of Bojungikgi-tang on incerase of the number of eosinophil and neutrophil, and protective effects of nasal mucosal tissue in the allergic rhinitis. 1. In Inhibitory Effect of Bojungikgi-tang on Increase of the number of Eosinophil in Serum, Bojungikgi-tang showed significant effects.(p〈0.05) 2. In Inhibitory Effect of Bojungikgi-tang on Increase of the number of Neutrophil in Serum, Bojungikgi-tang showed significant effects.(p〈0.05) 3. In histopathologic change of nasal mucosal tissue, Bojungikgi-tang showed significant protective effects. Depending upon above results, it is considered that Bojungikgi-tang has the inhibitory effects on the process of allergic rhinitis and that it could be used in reliving patients of the symptoms caused by allergic rhinitis.

원전 기기 용접 잔류응력 평가 연구 고찰

김종성,Kim, Jong Sung 한국압력기기공학회 2016 한국압력기기공학회 논문집 Vol.12 No.1

The paper investigates the previous studies about welding residual stresses in nuclear components. First, various residual stress measurement methods are reviewed in applicability. Second a finite element welding residual stress analysis technique, which was developed from the viewpoint of FFS (Fitness-For-Service) assessment, is explained. Third, characteristics of the welding residual stresses on J-groove welds and butt welds were presented via investigating the previous studies. Last, engineering formulae for residual stresses in the FFS assessment codes such as R6 and API 579/ASME FFS-1 Code is summarized.

원전설비 이종금속 용접부 건전성 평가 연구

김종성,진태은,김윤재,장창희,Kim, Jong-Sung,Jin, Tae-Eun,Kim, Yun-Jae,Jang, Chang-Heui 대한용접접합학회 2008 대한용접·접합학회지 Vol.26 No.3

구조적 제약조건을 갖는 500 MW 석탄화력발전소 탈황설비의 성능개선

김종성,유호선,Kim, Jong-Sung,Yoo, Hoseon 한국플랜트학회 2019 플랜트 저널 Vol.15 No.4

미세먼지 감축에 대한 사회적 요구 증가와 강화되는 대기오염물질 배출허용기준을 충족시키기 위해 구조적 제약조건을 갖는 500 MW급 석탄화력발전소 탈황설비의 성능개선 방안을 제시하였다. 탈황설비 흡수탑을 통과하는 배기가스가 선회하도록 내부 설비를 개조하여 난류를 형성시켜 물질전달효율을 증가시키고 반응 면적 및 시간을 증가시킴으로써 황산화물 저감 및 먼지 포집 능력을 향상시킬 수 있었다. 개선결과 황산화물 제거효율은 91.61%에서 98.43%로 향상되었고 먼지 제거성능은 77.4%에서 87.08%로 향상되었다. 배출농도는 황산화물 7.85 ppm, 먼지 4.67 mg/㎥이 배출되어 2023년의 대기오염물질 배출허용기준인 황산화물 25 ppm, 먼지 5 mg/㎥을 만족하는 수준이다. 본 연구의 성능 개선 방식은 유사한 제약조건을 갖는 다른 석탄화력발전소에도 효과적으로 적용될 수 있으리라 기대된다. To meet both increasing social demand for reduction of fine dust and the strengthened air pollutant emission standards, this paper indicated performance enhancement of FGD with structural constraints in 500 MW coal fired thermal power plant's. Through modifying internal facilities for flue gases to make swirl in the absorption tower, it made turbulence and increased the efficiency of material transfer, the reaction area and time with the limestone slurry. Therefore, it could reduce dust and enhance the performance of collecting the SO₂. As a result, desulfurization efficiency was improved from 91.61% to 98.43% and dust removal efficiency was improved from 77.4% to 87.08%. Emission density is 7.85 ppm of SO₂ and 4.67 mg/㎥ of dust. This is a level that satisfies emission limit of 25 ppm of SO₂ and 5 mg/㎥ of dust which are the air pollutant emission standards of 2023. The performance enhancement method of this study is expected to be effectively applied to other coal-fired power plants with similar constraints.

문헌정보학 분야 어린이서비스 연구의 현황과 과제

김종성,Kim, Jong-Sung 한국도서관정보학회 2013 한국도서관정보학회지 Vol.44 No.2

이 연구는 우리나라 문헌정보학분야의 어린이서비스 연구의 경향을 분석하고 연구의 발전적인 방향을 모색하기 위해 한국문헌정보학회지, 한국도서관 정보학회지, 한국비블리아학회지, 정보관리학회지에 창간호부터 2012년까지 게재된 학술논문 113편을 분석하였다. 연도, 학회지, 연구자, 주제, 연구방법, 연구비 등을 기준으로 논문현황을 분석하였고 연구에서 나타나는 내용과 방법론을 중심으로 개선과제를 살펴보았다. 연구 논문 분석을 토대로 어린이서비스의 발전을 위한 과제로 어린이 도서 연구의 활성화, 어린이서비스 연구 전반의 실효성 제고, 연구의 현장 근접성 강화 등을 제안하였다. The purpose of this study is to analyze the trends of children's services research in Korea. A total of 113 research articles were selected from 4 journals in Library and Information Science. Articles were analyzed in the aspects of research subjects, research methods, author types, and research funds. The writer discussed the problems shown in the articles and suggested some recommendations for the development of research.

사서교사 양성을 위한 문헌정보학 교과목의 내용과 교육의 전략적 강조점에 관한 연구

김종성,Kim, Jong-Sung 한국비블리아학회 2006 한국비블리아학회지 Vol.17 No.1

The purpose of this paper is to study the instructional contents and strategies for school library media specialist education in Korean Library and Information Science. The writer insist several aspects of instructional contents should be emphasized for relevant school library media specialist education. Instructional contents for philosophical and conceptual aspect of school library and media specialist, knowledge and experience for literature for children and young adult, and knowledge and technique for teaching and instruction at field are those. And the writer suggests LIS education for media specialist should be able to let the students stand on the strong professional sprit, help adapt themselves to school practice, and make them a professor of literature.

1960년대 한국 학교도서관 운동의 전개에 관한 연구

김종성,Kim Jong-Sung 한국문헌정보학회 1998 한국문헌정보학회지 Vol.32 No.3

이 연구는 1960년대 한국 학교도서관 운동의 전개 양상을 조명하고 있다. 1960년대 학교도서관 운동이 크게 확대되는 양상을 지역별 강습회와 전국학교도서관대회를 중심으로 설명하고 학교도서관계에서 기울인 학교도서관의 제도화 노력과 그 성과에 주목한다. 그리고 교육 영역에서 학교도서관의 입지를 강화하기 위한 노력으로서 전국학교도서관 연구대회와 학교 경영자를 위한 도서관 교육의 의의를 탐색한다. The purpose of this paper is to review the modern school library movement in Korea with a special reference to the 1960's. The writer keeps an eye on the legal and administrative improvements for school library activities.

온도에 따른 원유분해미생물의 생물학적 정화효율 평가

김종성,이인,정태양,오승택,김국진,Kim, Jong-Sung,Lee, In,Jeong, Tae-Yang,Oh, Seung-Taek,Kim, Guk-Jin 한국지하수토양환경학회 2016 지하수토양환경 Vol.21 No.1

Bioremediation is one of the most effective ways to remediate TPH-contaminated sites. However, under actual field conditions that are not at the optimum temperature, degradation of microorganisms is generally reduced, which is why the efficiency of biodegradation is known to be significantly affected by the soil temperature. Therefore, in this study, the labscale experiment was conducted using indigenous crude oil degrading microorganisms isolated from crude oil contaminated site to evaluate the remediation efficiency. Crude oil degrading microorganisms were isolated from crude oil contaminated soil and temperature, which is a significant factor affecting the remediation efficiency of land farming, was adjusted to evaluate the microbial crude oil degrading ability, degradation time, and remediation efficiency. In order to assess the field applicability, the remediation efficiency was evaluated using crude oil contaminated soil (average TPH concentration of 10,000 mg/kg or more) from the OO premises. Followed by the application of microorganisms at 30℃, the bioremediation process reduced its initial TPH concentration of 10,812 mg/kg down to 1,890 mg/kg in 56 days, which was about an 83% remediation efficiency. By analyzing the correlation among the total number of cells, the number of effective cells, and TPH concentration, it was found that the number of effective microorganisms drastically increased during the period from 10 to 20 days while there was a sharp decrease in TPH concentration. Therefore, we confirmed the applicability of land farming with isolated microorganisms consortium to crude oil contaminated site, which is also expected to be applicable to bioremediation of other recalcitrant materials.

주기적 스터브를 이용한 슬롯결합형 마이크로스트립 방향성결합기의 특성 개선

김종성,Kim Jong-Sung 대한전자공학회 2004 電子工學會論文誌-TC (Telecommunications) Vol.41 No.6

슬롯결합형 마이크로스트립 방향성결합기의 반사계수와 분리도를 동시에 개선시키기 위하여 기존의 사각형 형태의 슬롯에 주기적으로 다수의 슬롯이 추가되었다. 방향성결합기의 2 개모드간 위상속도와 등가회로를 이용하여 설계 방정식을 도출하였다. 이상적인 성능이 설계 예제를 통하여 가능함을 확인하였다. Several stubs are added to a rectangular slot for giving an improvement in both return loss and isolation for a slot-coupled microstrip directional coupler. Its closed-form design equations are derived by velocity equalization of two normal modes and network equivalence. It was verified that nearly ideal performance is achievable by design examples.

VTS관제사의 최소안전거리에 관한 기초 연구

김종성,Kim, Jong-Sung 해양환경안전학회 2013 해양환경안전학회지 Vol.19 No.5

본 연구에서는 우리나라 각 항만 VTS에서 근무하고 있는 현직 관제사들을 대상으로 관제 구역 내에서 선박의 안전한 운항을 위해 선박과 선박 사이 및 선박과 육지(장애물)와의 최소 안전거리를 조사하여 VTS 관제의 효율성을 제고하는데 그 목적이 있다. 이러한 안전한 선박 통항을 위한 기초 자료를 제시하기 위해 우리나라 각 항만 VTS 관제사들이 관제하는 안전이격거리를 각 VTS 센터별, 개인별로 설문 조사 및 분석을 하고 실습선을 이용하여 선박 통항이 밀집되어 있는 싱가포르와 말라카 해협에서의 관제 거리를 서로 비교하여 VTS 관제사간의 최소안전거리에 어떠한 차이점이 있는지를 조사하였다. 설문조사 결과 같은 VTS 소속임에도 불구하고 개인별로 관제하는 최소안전거리에는 많은 차이가 있고 전체적으로 해안선이 완만한 동해항의 경우 관제 안전거리가 타 항만보다 컸으며 해안선이 복잡하고 어선 및 여객선의 입출항이 잦은 목포항이 관제 안전거리가 가장 짧음을 확인할 수 있었다. 또한 동일한 VTS에 근무하는 관제사들이 정형화된 관제 방법에 따라 관제를 할 수 있도록 항만의 자연조건이나 교통량에 적합한 모듈(Module)을 개발할 필요성이 필요하며 향후에는 표준관제절차 수립을 위한 전문가 집단의 충분한 논의가 있어야 할 것으로 사료된다. This study aims to enhance the effectivity of VTS(Vessel Traffic Service) control by investigating the minimum safe distance between vessel and vessel, vessel and land(obstacle) for the vessel's safe navigation within the VTS control area. In addition, to suggest basic data for the safe navigation, this study has done survey and analysis to each VTS center, and individual on the minimum safe distance to VTS operators of each ports of korea. Through ocean voyage by training ship, Singapore and Malacca strait's congested vessel traffic zone's control distance was compared and investigated the difference on safe distance by the different VTS operators. As a result, there was huge difference of minimum safe distance between the VTS operators belong to the same center. Over all, the port with gentle coastline, like donghae, the safe distance was wider than the other port. On the other hand, port with complex coastline and frequent entry and departure of the vessel, like mokpo, the safe distance was the shortest of all. Therefore, development of module suitable to port's natural conditions and traffic volume's necessity is required, for the operators affiliated to the same VTS center control according to formal method. Lastly, the full discussion by the expert group about establishment of standard control procedure in the future should be considered as well.