An Efficient Multicast Routing Algorithm for Packet-Switched Networks

Chung, Sung-Jin,Hong, Sung-Pil,Park, Bum Hwan 한국경영과학회 1998 한국경영과학회 학술대회논문집 Vol.- No.2

This paper has a dual purpose. First, we consider a relaxation algorithm which seems to be particularly suitable for multicasting routing problems. We show that the algorithm has polynomial complexity. Second, to measure the quality of solutions in comparison to the optimal solutions over a wide range of network sizes for which the computation of the optimal costs is too excessive, we also propose a random graph generation scheme in which an asymptotic lower bound on the expected optimal cost can be computed as a function of network node size.

‘뒤틀린 기독교’굳히기

박정신(Chung-shin Park),박규환(Qu-hwan Park) 한국인문사회과학회 2012 현상과 인식 Vol.36 No.1

이 글은 박 정희 시대 한국 개신교의 자취를 돌아보고 그 됨됨이를 밝히고 있다. 박 정희 군사 독재 시기 한국 개신교는 정통성과 정당성을 결여한 정치권력에 맞설 수 있는 자원을 지니고 있었지만 또 다시 정교유착의 길을 선택, ‘뒤틀린 기독교’를 굳혀놓았다. 교회 조직의 이익을 위하여 스스로 권력의 우산 아래로 들어가 기존 질서를 신성시하는 담론과 행동을 생산하였던 것이다. 이를 증명하기 우I하여 이 글은. 군사정권과 개신교의 엉김의 역사. 이를테면 쿠데타와 베트남 파병, 삼선개헌과 10월 유신에 대한 개신교의 대응을 살펴보았고 개신교가 정교유착의 매개로 채택한 ‘국가주의’ 담론의 내용과 유통 경로를 확인하였다. 박 정희 시대 개신교는 또한 박 정희의 ‘돌진적’이고 ‘반동적’인 근대화에 엉김으로써 ‘교회교’로 전락하였다. 이를 논증하기 위하여 이 글에서는 박 정희 식 근대화에 호응하여 내놓은 개신교의 교회 성장 전략과 성장 신학을 검토하고, 교회가 유물론과 성장 신학의 포로가 되고 ‘봉건적’ 종교로 굴절되는 과정을 살펴보았다. 군사 정권과 유착하여 국가주의와 성장 이데올로기, 시장주의와 봉건 윤리를 재생산하는 노릇을 충직하게 수행한 한국 개신교는 조직과 영향력에서 한국 최대의 종교 집단. 힘 있는 주류 종교의 지위를 획득하였다. 그러나 삶의 현실에 대하여 끊임없이 회의하고 삶의 바탕 그 자체를 뛰어넘는 기독교 본연의 종교성, 바로 그 초월성을 고스란히 잃어버렸다. 그런 점에서 박 정희 시대는 ‘뒤틀린 기독교’로서 한국 개신교의 생김새와 됨됨이를 굳힌 시기였다. The aim of this research is to define the characters of the Korean Protestant church during the Park Chung-Hee era, arguing that the Korean Protestant church not only conformed to the Park"s military regime under the torch of nationalism, but also supported Park"s “modernization of the fatherland” by actively accepting the “growth-first” ideology. Firstly, as its responses to the Park"s military coup, the dispatch of troops to Vietnam, the amendment of the constitution in 1969, and the October Revitalization Reform (Yusin) well showed, the Korean protestant church did not stand against the existing political power that lacked legitimacy and justification. Here it showed the contents and the process of the discourse, “nationalism” which Protestant church chose to get close and positive relationship with the dictatorial government to achieve the church"s interests. Secondly, Korean Protestant church degraded to a ‘Churchianity’ by sticking to the Park"s reactionary and rush-to modernization. To prove this, it examined the strategies and theology for their church growth that churches presented to respond to the Park"s modernization. And also it observed that churches became a slave of materialism and theology of church growth then came to be a feudalistic religion. With the adoption of “nationalism,” which was in fact a statism, and the “growth-first” ideology, the Korean Protestant church could become the biggest and the most influential religious organization in Korea. However, in the process of quantitative growth, it lost its original transcendent ideal that makes it possible to criticize and relativize the worldly life. In this point, it is possible to say that the distorted nature of the Korean Protestant church was confirmed again during the Park"s regime.

공공기술 기반 여성기술창업에 관한 탐색적 연구: 여성연구소기업을 중심으로

오영환(Oh, Young-Hwan),정양헌(Chung, Yang-Hon) 한국경영교육학회 2021 경영교육연구 Vol.36 No.4

[연구목적] 본 연구에서는 여성기술창업에 대한 연구가 미흡한 시점에서 공공기술을 기반으로 설립되는 여성연구소기업의 창업가에 대한 인터뷰를 통해 창업 동기, 목적, 창업아이템 선정, 사업화 과정, 특성 등을 파악하여 연구소기업이 여성기술창업 지원제도로서 적합한가와 여성기술창업의 활성화방안을 살펴보고 시사점을 제공하고자 하였다. [연구방법] 본 연구는 질적 연구방법론인 근거이론에 대한 이론들과 기존에 수행되었던 여성기술창업, 연구소기업 등의 연구들을 충분히 검토하고, 8명의 연구소기업의 여성창업가를 대상으로 인터뷰를 진행하였다. 근거이론의 탐색적 접근방법을 통해 인터뷰 내용을 개방코딩, 축 코딩, 선택코딩 등으로 분석하여 여성기술창업의 특성을 확인해 보았다. [연구결과] 연구결과로 공공기술을 기반으로 설립된 연구소기업은 연구개발특구의 설립지원, 기술사업화 과제, 성장 지원 등과 대학 및 연구원의 기술지원 등으로 유익한 여성기술창업지원 제도이다. 따라서 주도적 개인 성향과 기술 기반의 창업역량을 보유한 예비 여성창업가를 적극 발굴하여 여성연구소기업을 더욱더 확대해야 한다. [연구의 시사점] 본 연구는 여성기술창업의 활성화를 위해 여성 친화적 기술 및 제품과 연계된 기술창업지원 프로그램 확대, 여성연구소기업에 대한 지원 확대 및 우대, 창업기업의 기술사업화를 위한 기술지원과 사업화 프로그램 강화, 여성창업가의 일과 가정의 양립으로 인한 어려움을 해소할 수 있는 인력지원 등이 확대되어야 한다는 시사점을 제공한다. [Purpose] In this study, we interviewed women CEO in Research Institute Companies established to identify their startup motivations, the purpose of a startup, the selection of startup items, the commercialization process, and the characteristics of women-led technology startups to provide implications and examine whether a Research Institute Spin-off Company is suitable and expandable as a women-led technology startup support system. [Methodology] This study conducted interviews with 8 women CEO of Research Institute Spin-off Companies. Through the grounded theory, the interview contents were analyzed to identify the characteristics of women-led startups. [Findings] As a result of research, it is show that a Research Institute Spin-off Company established based on public technology is a beneficial women-led technology startup support system, having the support from the INNOPOLIS, technology commercialization projects, various growth supports, and technical support from universities and research institutes. It is suggested that women-led Research Institute Spin-off Companies should be further expanded by actively discovering prospective women entrepreneurs that have a personal tendency of playing a leading role and entrepreneurship capable of building a technology startup. [Implications] This study suggests that in order to revitalize women-led technology startups, there needs to be an expansion of technology startup support programs connected to women-friendly technologies and products, expanded support and preference towards women-led Research Institute Spin-off Companies, expansion of technology and commercialization support to resolve the difficulties of technology commercialization, and personnel support to relieve the work-family balance of women entrepreneurs.

忠南黑石溪谷 住民의 肺, 肝디스토마 感染率 및 그 中間宿主 調査

金鍾煥,鄭奉晳,金玉千 醫藥係社 1955 綜合 醫學 Vol.12 No.12

네모나프라이드의 유효성 및 추체외로 부작용 : Haloperidol 및 Risperidone과의 자연관찰적 개방형 비교연구 A Naturalistic Open Comparative Study with Haloperidol and Risperidone

서영수,김용관,신동환,공보금,이정구,박정환,윤성환,정치영,이상경,김영훈 대한생물치료정신의학회 2001 생물치료정신의학 Vol.7 No.2

Objectives : This open prospective study was performed in order to evaluate the efficacy and extrapyramidal adverse effects of nemonapride in the schizophrenic patients, and was compared wit one of typical antipshchotics. haloperidol and one of atypical antipsychotics, risperidone. Methods : Thirty male and female schizophrenic patients(DSM-Ⅳ) were treated for 12 weeks with haloperidol(n=10), risperidone(n=10) and nemonapride(n=10). The overall efficacy was assessed at baseline, 1st week, 2nd week, 4th week, 8th week, and 12th week by the Positive and Negative Syndrome Scale for Schizophrenia(PANSS). Also the overall safety was assessed in the same time period by the Extrapyramidal Symptom Rating Scale(ESRS). Results : There were no significant differences in PANSS scores(total, positive, negative, and general psycho­pathology subscale) among haloperidol, risperidone, and nemonapride groups, Treatment responders, defined as at least 20% reduction of baseline total PANSS score, were achieved by 8 patients(80%) in haloperidol group, 10 patients(100%) in risperidone group, and 8 patients(80%) in nemonapride group. And there were no significant differences in ESRS total scores among haloperidol, risperidone, and nemonapride group. Inter-group comparison among haloperidol, risperidone and nemonapride group, as assessed by the ESRS, revealed no significant differences in the shifts to the maximum score, 9.4(±9.4), 6.2(±8.4), and 11.3(±8.1) respectively, and also revealed no significant differences in the mean time reaching the maximum score, 4.5(±4.5) week, 7.8(±4.8) week, and 4.6(±4.4) week, respectivily. Conclusion : There wee no significant differences in the efficacy and extrapyramidal adverse effects among haloperidal, rispecridone and nemonapride groups. These results suggest that nemonapride was as efficacious and safe in he treatment of schizophrenia, as well known and widely used antipsychotics, haloperidol and risperidone.

Slide Session : OS-IFD-07 ; Infectious Disease : In Vitro Antiviral Activity of Ribavirin Against Severe Fever with Thrombocytopenia Syndrome Virus

( Myung Jin Lee ),( Kye Hyung Kim ),( Jong Youn Yi ),( Su Jin Choi ),( Chung Jong Kim ),( Nak Hyun Kim ),( Kyoung Ho Song ),( Pyoeng Gyun Choi ),( Ji Hwan Bang ),( Wan Beom Park ),( Eu Suk Kim ),( San 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

In Vitro Antiviral Activity of Ribavirin Against Severe Fever with Thrombocytopenia Syndrome Virus Myung Jin LEE1, Kye-Hyung KIM1, Jongyoun YI2, SuJin CHOI1, Chung-Jong KIM1, Nak- Hyun KIM1, Kyoung-Ho SONG1, Pyoeng Gyun CHOI1, Ji-Hwan BANG1, Wan Beom PARK1, Eu Suk KIM1, Sang-Won PARK1, Hong Bin KIM1, Nam Joong KIM1, Myoung- Don OH1 Seoul National University College of Medicine, Korea1, Pusan National University School of Medicine, Korea2 Background: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by a novel Bunyavirus, severe fever with thrombocytopenia syndrome virus (SFTSV). No effective antiviral therapy is proven yet, but clinical use of ribavirin (RBV) has been tried. We investigated the antiviral effect of RBV against SFTSV in vitro. Methods: To test for cytotoxicity of RBV, Vero cells were treated with different concentrations of RBV (3.90 to 500 μg/mL, two-fold dilution) and analyzed by cell viability MTS assay 48h post-infection. To determine antiviral activity of RBV against SFTSV, Vero cells were infected with SFTSV strain Gangwon/Korea/2012 at 100 TCID50 (50% tissue culture infective dose) per well in a 96-well plate, and RBV was added at the concentrations showing no or minimal cytotoxicity. Viral RNAs were extracted from the culture supernatants and quantifi ed using one-step real-time reverse transcription- PCR to amplify the partial large segment of SFTSV. Statistical analysis was done by one-way ANOVA with Tukey`s post hoc test. Results: Cytotoxicity due to RBV was not observed at RBV concentration =31.3 μg/ mL. Viral RNAs at 24h post-RBV treatment were reduced with increasing RBV concentrations (1-32 μg/mL), compared with those of mock-treated cells (P <0.01, Figure). Half maximal inhibitory concentration (IC50) of RBV was 3.69 μg/mL at 24h post-RBV treatment. Conclusions: Our study shows that RBV has antiviral effect against SFTSV in a dose-dependent manner. Further studies are required to evaluate the effi cacy of RBV in SFTS.

흰쥐의 연수 추체로내 연접의 존재

정환식,서영석 최신의학사 1986 最新醫學 Vol.29 No.3

다치 논리를 이용한 화상처리의 농도 표현에 관한 연구

정환묵,박미경 대구효성가톨릭대학교 응용과학연구소 1998 응용과학연구논문집 Vol.6 No.2

Since the multiple valued logic is compare with two-valued logic, it is PC high speed processing and increasing information density greatly in logic networks. In this paper, we represent the multiple-valued that gray level necessary image process the benefit of multiple-valued logic.

社會保障의 生成

정완조 圓光大學校 附設 法學硏究所 1997 法學硏究 Vol.14 No.-

뇌파 바이오피드백 기기를 활용한 집중력 훈련이 양궁 경기 수행력에 미치는 영향

정청희,홍길동,황진 한국스포츠심리학회 2004 한국스포츠심리학회지 Vol.15 No.1

본 연구의 목적은 뇌파 바이오피드백 기기를 활용한 9주간의 주의집중 훈련 프로그램이 양궁 경기 수행력과 집중력에 효과가 있는지를 규명하는 것이다. 연구 참여자는 8명의 양궁 선수들(남=2, 여=6)로서 본 연구 실시 이전의 양궁 경기에서의 성적 순위별로 실험집단과 통제집단에 각각 4명씩 무선할당하였으며, 실험집단은 9주간 Q-jump 바이오피드백 기기를 활용하여 주의집중 지속력 훈련과 주의집중 전환력 훈련을 실시하였고, 통제집단은 집중력 훈련 프로그램을 제회한 모든 훈련 과정에서 실험집단과 동일하게 통제되었다. 실험 과제는 주의집중 지속력 및 전환력 점수 그리고 양궁 점수이다. 결과 분석을 위해서 사전검사와 사후검사별로 집단간 차이를 살펴보기 위해 독립 t-검정을 실시했으며, 측정 시기별 차이를 규명하기 위해 반복 측정(repeated measure) 방법 중 반복대비분석을 실시하였다. 본 연구의 결과는 다음과 같다. (a) Q-jump 바이오피드백 기기를 활용한 주의 집중력 훈련을 실시한 결과 주의집중 지속력과 주의집중 전환력에서는 집단간 차이가 나타났다. (b) Q-jump 바이오피드백 기기를 활용한 주의 집중력 훈련을 실시한 결과 양궁 시합 점수에서는 집단간에 차이가 없는 것으로 나타났다. This study presents evidence of effectiveness of 9-week concentration training with brainwave biofeedback on concentration ability and archery competition performance. Eight university archery players(M=2, F=6) were divided into two groups(Experimental and Control).Experimental group(n=4) completed a series of concentration training program using a Q-jump computer system. Experimental task was a competition score. To determine the effectiveness of the concentration training contrast analysis was performed. ANCOVA was applied to the test data. The results of the analysis are as followings (a) The Q-jump feedback has an influence on improvement of concentration endurance and shift ability from 6weeks to 9weeks. (b) The concentration program with Q-jump feedback does not have an influence on Archer' competition scores.