백작약 조다당분획에 의한 B 세포 증식의 특성

박혜란,함연호,이성태,백상기,조성기,Park, Hae-Ran,Ham, Yeon-Ho,Yee, Sung-Tae,Paik, Sang-Gi,Jo, Sung-Kee 대한면역학회 2001 Immune Network Vol.1 No.2

Background : Paeonia japonica Miyabe is a medicinal plant which has been widely used as a component of blood-building decoctions (Chinese medicinal concept : Bu-Xie). The immunopharmacological characteristics of the extract of Paeonia japonica (PJ) were investigated. Methods : The effects of fractions of PJ extract on lymphocyte proliferation were measured by $H^3$-thymidine incorporation assay. The proliferated lymphocyte subsets were analyzed in flow cytometry. The subset cell populations of spleen cells were separated by magnetic cell separation system, and their proliferation by the extract were investigated. The effect of the extract on antibody production was determined in mice challenged with sheep red blood cells (SRBC) using hemolytic plaque forming cell assay. Results : Spleen cells were proliferated by water extract of PJ. Polysaccharide fraction (PJ-P) of the extract was most active in the proliferation. It was found in flow cytometry that the lymphocyte subset proliferated by PJ-P was B cell population. Among the separated subset cell populations, T cell-depleted cell population and macrophage-depleted cell population were most proliferated by PJ-P. However, positively selected populations of B cells and T cells were not proliferated by PJ-P. These results indicate that B cell proliferation by PJ-P may require the assistance of macrophages or T cells. These results suggest that firstly PJ-P may stimulate macrophages or T cells, and then B cells are activated. The number of antibody-secreting cells was increased by administration of PJ-P in mice immunized with SRBC as a T-dependent antigen. Conclusion : These results suggest that macrophages and accessory cells are directly activated by PJ-P and then helper T cells and B cells are indirectly activated. As the results, immune responses might be coordinately improved. In conclusion, PJ-P, a polysaccharide of P. japonica, may be a characteristic immunostimulator, which is analogous to polysaccharides such as lentinan, PSK and ginsan.

향락소비문화 부추기는 여성지

박혜란,Park, Hye-Ran 대한출판문화협회 1989 출판저널 Vol.37 No.-

Ad Hoc 네트워크에서 잔여전력량을 이용한 효율적인 클러스터 헤더 선출 기법

박혜란,김우완,장상동,Park, Hye-Ran,Kim, Wu-Woan,Jang, Sang-Dong 한국정보통신학회 2012 한국정보통신학회논문지 Vol.16 No.6

클러스터 기반 라우팅 프로토콜(CBRP, Cluster-Based Routing Protocol)은 각 클러스터 내에 클러스터 헤더를 선출하고, 그 클러스터 헤더는 모든 이동 노드들을 관리, 운영하기 때문에 전력 소모가 심하게 일어나게 된다. 기존의 CBRP는 각 노드의 잔여전력량을 고려하지 않고 헤더를 임의로 선출하기 때문에 클러스터 헤더의 평균 수명이 짧아지고 이로인해 빈번하게 다른 헤더를 선출해야 하는 문제점을 가지고 있다. 따라서, 본 논문에서는 클러스터 헤더를 선출할 때 클러스터 내 각 노드의 잔여전력량을 비교하여 잔여전력량이 가장 많은 노드를 클러스터 헤더로 선출하여 클러스터의 수명과 네트워크 전체의 수명을 연장시키면서 경로의 안정성을 높이는 개선된 프로토콜을 제안한다. In the Cluster-Based Routing Protocol (CBRP) a cluster header in each cluster should be elected. The cluster headers consume energy much more than other nodes because they manage and operate all of mobile nodes in their cluster. The traditional CBRP elects a cluster header without considering the remaining electric energy of each node. So, there exists problems that the cluster header has short average lifetime, and another cluster header should be elected again frequently. In this paper, we propose the improved protocol which prolongs the lifetime of the cluster header and enhances the stability of the path. In order to achieve this, when a cluster header is elected in a cluster, the remaining electric energies of all the nodes are compared with one another, and the node with the highest energy is elected as the cluster header.

중국의 지역별 전통적 생산성과 환경조정생산성의 비교

박혜란 ( Hae Ran Park ),강상목 ( Sang Mok Kang ) 한국환경정책평가연구원 2009 환경정책연구 Vol.8 No.3

본 연구의 목적은 중국의 28개 성과 자치주를 대상으로 성장회계분석에 기초하여 전통적 생산성 성장과 환경조정생산성 성장을 비교함으로써 각 지역의 생산성에 미치는 환경요소의 효과와 경제성장의 주된 요소를 실증적으로 계측하고자 함이다. 추가적으로 환경조정 생산성 변화를 측정하기 위해서 중국 지역별 SOx의 잠재가격을 측정할 것이다. 1997년~2005년 동안 중국은 장기적으로 10.06%인 고도의 경제성장률을 보였다. 지역별로 동부의 성장이 가장 빠르고 중부의 성장률이 가장 낮다. 전통적 총요소생산성은 평균적으로 3.56%로 나타났고 지역별로 동부가 가장 높았다. 환경조정된 생산성 증가율은 평균적으로 3.57%로서 전통적 생산성 증가율과 큰 차이는 나지 않았다. 이는 세지역에서 오염저감활동이 적극적으로 이루어지지 못하고 있음을 보여준다. 따라서 정책적으로 중국 정부에서는 환경규제를 부단히 강화시키거나 제정된 환경규제를 엄격히 집행할 필요가 있다. The purpose of this paper is to clarify the main components of economic growth and the effects of environmental factorson productivity by comparing traditional productivity growth and environmentally-adjusted productivity growth in 28 Chinese regions based on growth accounting analysis. To do this, we measured the shadow prices of SOx for the 28 Chinese regions. This study found that the annualized growth rate of output in the 28 Chinese regions was almost 10.07% for 1999-2005, though the growth rate was higher in the eastern region than in the middle and western regions. The average traditional productivity was 3.58%, again with the eastern region showing the highest level. The average environmentally-adjusted productivity of the three regions was about 3.56%, which is similar to the level of traditional productivity. This implies that activities regarding pollution reductions in the 28 Chinese regions have not been practiced, even though environmental regulations have been strengthened. Therefore, the regional and central governments should strengthen environmental regulations and strictly enforce them.

정보영재에 관한 연구 동향 분석

박혜란(Hyeran Park),정웅열(Ungyeol Jung),이영준(Youngjun Lee) 한국컴퓨터정보학회 2017 한국컴퓨터정보학회 학술발표논문집 Vol.25 No.2

구술사를 통해 본 중국 조선족 여성의 삶

박혜란(He-Ran Park) 이화여자대학교 한국여성연구원 1995 여성학논집 Vol.11 No.-

The objective of this research is, first of all, to understand the lives of 2 million Korean People, especially those of the women, who rapidly came close to us since China opened its doors to foreign countries. The second objective is to understand the North Korean women's lives through understanding the lives of Korea women in China who have kept a close relationship with them, in order to be ready for the reunification of South and North Korea, which is expected to actualize sooner or later, and to reduce the discord and conflict that can occur inevitably because of the differences between both countries. For these objectives, the contents of the recorded dictations of 22 women of Korean People who currently live in China were analyzed by dividing into consciousness and experiences. In the consciousness aspect, is their consciousness of nation, of people and unification, and their women's conscious mess were analyzed. The Korean women believed that they had actually benefitted from the Chinese policy of minority preferential treatment, therefore as the citizens of China, they felt a strong Chinese identity. Before the opening, they were pro-North Korea, but after the opening, the preference of South Korea was steadily increasing. The reason could be that their national pride was strengthened by South Korea's rapid economic progress but the better reason was very practical that since there was a big economic difference between China and South Korea, once they connected with south Korea, they thought they could highly benefitn from Korea in generating their income. For many women, South Korea was considered as a country of opportunities. However, due to the influence of Chinese national policy to minorities and the length of history of emigration of Korean People, the national consciousness of young women was more and more weakened. They recently started to be interested in the re-unification of the Korean Peninsula, but it was just a superficial level. Most of the women interviewed for this study had no conciousness of women's issues/problems. Even though they were suffereing from the heavy double burden of outside labor and housework, they accepted a traditional concept of duties of man and wife, and agreed with fatalism. Recently, the problems of sexual disrimination in job opportunities and child care were raised among women, especially professional women in 20-30's. But for solving the problems, they showed a resigning attitude. On the other hand, the number of young women who thought a fulltime-housewife as an ideal woman was increasing. The reality of Korean women in China was analyzed centering around their family relationship, economic activity and love and marriage. Family relationship was shifted generally from authoritative to democratic one, and the women believed that the relationship of man and wife had a key to decide whether they were happy or unhappy. Moreover they were strongly attached to their children, and felt certain that education played an important role in children's future success. The elderly women believed that it was parents' duty to give financial support to their children even though they got married. And young women took the financial support for granted, and they showed an over-protective attitude toward their children. For living and children's education, the women participated in all sorts of labor. But the younger generation they got, the weaker the occupational consciousness was. Since the liberalization of China, as the epicurian culture spread throughout the societyv of Korean People in China, the traditional sexual ethics were inclined to collapse, however, the women still kept the traditional concept of chastity. But as emotional exchange took bigger parts in the relationship of man and wife, the rate of divorce increased. Among the young women, the idea not limiting their spouses to just Korean People was widely spreading, and the major reason was because of Kore

초등학교 소프트웨어 교육 발전을 위한 제언

박혜란(Hyeran Park) 한국컴퓨터교육학회 2019 한국컴퓨터교육학회 학술발표대회논문집 Vol.23 No.2

2015 개정교육과정에서 제시하는 소프트웨어 교육의 방향과 달리 학교 현장에서의 교사들의 반응은 여전히 냉담하다. 본 연구에서는 초등학교 교사들이 소프트웨어 교육에 대해 가지는 인식을 분석하였다. 그 결과, 초등학교 교사들은 2015 개정교육과정에 제시된 소프트웨어 교육에 대해 잘 알지 못하며 17시간이라는 시수가 너무 많거나 적당하다고 생각한다. 또한 학생들에게 소프트웨어 수업을 할 준비가 되어있지 않으며 이러한 이유로 수업자료 부족을 답하였다. 따라서 초등학교 교사들이 소프트웨어 교육을 제대로 실행하기 위해서는 교사의 의견이 반영된 교육과정 개정, 실과교육 교과 전담제를 통한 수업운영, 소프트웨어 교육을 위한 양질의 자료의 개발과 공유가 필요하다.

이더넷 LAN 프로토콜 분석장비 개발

박혜란(Hye-Ran Park),정중수(Joong-Soo Chung) 한국통신학회 2001 한국통신학회 학술대회논문집 Vol.2001 No.11

초등무용수업이 학습자에게 주는 만족도에 관한 연구

박혜란 ( Hye Ran Park ),권희선 ( Hee Sun Kwon ) 한국학교체육학회 2005 한국학교 체육학회지 Vol.15 No.2

국내 앱인벤터 교육 프로그램 개발 현황 분석

박혜란(Hyeran Park),김성원(Seong-won Kim),이영준(Youngjun Lee) 한국컴퓨터정보학회 2017 한국컴퓨터정보학회 학술발표논문집 Vol.25 No.1