서재필의 자유민권사상과 정치제도 개혁론

조홍찬 원광대학교 2001 論文集 Vol.27 No.-

유길준의 실용주의적 정치사상

조홍찬(Cho Hong Chan) 한국동양정치사상사학회 2004 한국동양정치사상사연구 Vol.3 No.2

조선조말 유길준은 관료정치가이자 개화사상가로서 두 역할을 동시에 수행하면서 정치의 현실과 사상의 당위(當爲)적 이상을 잘 접합시켰다. 서로 다른 두 목표사이의 갈등의 최소화에는 그의 실용주의적2) 사고방식이 놓여 있었다. 그는 유년기의 전통적 교육으로 유교적, 도덕적 세계관을 사상의 토양으로 가졌으나 박규수를 통하여 근대문명의 신지식을 접하고 나서 과거를 의도적으로 포기하였으며 , 조선인 최초로 일본유학과 미국유학을 통해 학문적으로, 경험적으로 서양사상을 체득하였다. 그의 사상은 그가 받은 교육과 경험을 반영하였으며, 동양의 유교적 사고방식과 서양의 합리적 사고방식을 절충한 독특한 체계를 이루었다. 그는 조선의 전통적인 유교적 의무개념인 ‘인(人)의 도리’와 서양의 자유와 평등의 개념인 ‘인민의 권리’라는, 양극적인 개념을 혼합하여 ‘처세의 자유’와 ‘통의의 평등’이라는 개념을 만들어 사용하였다. 그리고 근대적 국민국가를 희구하면서도 군주제가 정부의 시초로써 역사적 정통성을 가지고 있다고 주장하면서, 군주제와 공화제를 혼합하여 ‘군민공치’라는 입헌군주제적 정치체제론을 주장하였다. 또한 그는 국제정치에 있어서는 조선의 전통적, 중화(中華)적 국제관계를 무조건적으로 배척하지 않고 그것을 근대적 만국공법에 의한 새로운 국제질서의 장점과 혼합하여 복합적으로 국제관계를 인식하였다. 그는 개혁방법에 있어서도 ‘시세와 처지’를 중시하여 혁명이라는 급진주의적 방식을 지양하였고 조선의 현실을 단계적, 점진적으로 개혁ㆍ발전시키려했다. 필자는 이러한 관점에서 그의 정치사상이 실용주의적 이라고 보았다.

서재필의 국가 정체성(正體性) 연구

조홍찬(Cho Hong Chan) 한국동양정치사상사학회 2005 한국동양정치사상사연구 Vol.4 No.2

서재필은 국가를 사람처럼 하나의 복합적인 시스템으로 바라보았다. 그래서 그는 19세기 말엽의 조선국을 병(病)에 걸린 환자로 보아 그 병(病)을 ‘조선병(病)’ 이라 불렀다. 그는 것을 인민의 의존병, 관인의 압제병, 관인의 불법병, 인민의 방관병이라고 보아 그러한 병들을 치료하는 관점에서 조선의 국체(國體)를 서양의 것으로 바꾸어야 한다고 생각했다. 그는 먼저 조선인민의 남에게 의존하는 심리를 고쳐야 된다고 하며 조선인민이 자립심을 가져야 함을 주장했다. 그리고 그는 조선인민의 의존심리가 오래된 관인압제의 전통 때문이라고 보아 그것을 고치기 위해서는 무엇보다도 민(民)이 주인이 되는 국가가 되어야 함을 역설했고, 지배계층이 법을 먼저 준수해야 한다며 국가의 법치성을 강조했다. 마지막으로 그는 정치가 소수에 의하여 점유되어서는 안 된다며 정치가 개방되고 공개되는 의회정치를 주장하였다. 그는 서구 민주주의를 요율성의 관점에서 바라본 것이 아니라 정통성의 관점에서 바라보아 국가가 먼저 올바른 국가가 되어야 부강한 국가가 될 수 있다고 본 것이다. 필자는 이런 일련의 고정에 그의 국가 정체성(正體性)의 개념이 밑바탕에 깔려 있다고 보았다. Suh Jae-Pil(Phillip Jason) devoted his whole life to his country. He left remarkable footmarks in late Chosun Dynasty as not only a statesman but also a man of political thought. He thought that state must be righteous first, then it could be strong. He thought state was a composite system like an individual body and the state could fall sick. And he expressed the state of the late 19th century Chosun Dynasty as fallen in "Chosun Disease". He analyzed it people's dependent disease, rulers' oppression disease, rulers' lawlessness disease and people's onlooking disease. He was really a medical doctor and he made efforts to cure the disease of the country. He tried to change the system of Chosun dynasty from the traditional system to the western system. First, he emphasized to build the self-dependent mind of the people of Chosun. After that, Chosun could become an independent country. Second, he thought Chosun people's dependent mind came from ruling class' longtime oppression upon the people. He catch-phrased it 'Korea for Koreans'. Here 'Koreans' mean Korean ruled people, and he tried to educate people that they have the rights of freedom and equality inborn. In regards with ruling class' illegality he insisted that it could be cured by legalism(constitutional government) and ruling class must keep the law ahead all the people. Last, he hated that the politics was owned by the few. Therefore he asserted politics should be opened by many people. So, he suggested the parliament system. In these I think there was state righteousness conception. Righteousness was self-dependent, democratic, legalistic and congressional. Doctor Sub's political thought is valuable until nowadays not because he tried to accept, simply translate, and distribute the western democracy to Chosun people but because he understood correctly the core of democracy and tried to realize it. He understood the democracy as a legitimate system, not an effective system to become a powerful state.

Sol-Gel법에 의한 Li_1+xAl_xTi_2-x(PO₄)₃ (x = 0, 0.3, 0.5)의 합성 및 전도특성

문정인,조홍찬,송정환,Moon, Jung-In,Cho, Hong-Chan,Song, Jeong-Hwan 한국재료학회 2012 한국재료학회지 Vol.22 No.7

$Li_{1+x}Al_xTi_{2-x}(PO_4)_3$(LATP) is a promising solid electrolyte for all-solid-state Li ion batteries. In this study, LATP is prepared through a sol-gel method using relatively the inexpensive reagents $TiCl_4$. The thermal behavior, structural characteristics, fractured surface morphology, ion conductivity, and activation energy of the LATP sintered bodies are investigated by TG-DTA, X-ray diffraction, FE-SEM, and by an impedance method. A gelation powder was calcined at $500^{\circ}C$. A single crystalline phase of the $LiTi_2(PO_4)_3$(LTP) system was obtained at a calcination temperature above $650^{\circ}C$. The obtained powder was pelletized and sintered at $900^{\circ}C$ and $1000^{\circ}C$. The LTP sintered at $900{\sim}1000^{\circ}C$ for 6 h had a relatively low apparent density of 75~80%. The LATP(x = 0.3) pellet sintered at $900^{\circ}C$ for 6 h was denser than those sintered under other conditions and showed the highest ion conductivity of $4.50{\times}10^{-5}$ S/cm at room temperature. However, the ion conductivity of LATP (x = 0.3) sintered at $1000^{\circ}C$ decreased to $1.81{\times}10^{-5}$ S/cm, leading to Li volatilization and abnormal grain growth. For LATP sintered at $900^{\circ}C$ for 6 h, x = 0.3 shows the lowest activation energy of 0.42 eV in the temperature range of room temperature to $300^{\circ}C$.

EHP와 RRV의 Coinfection에 의한 Reassortants 선발에 관한 연구

유제현,조홍찬,송진욱,김유성,이영건,박선오,이종익,김응률,차광종,류영수,Harry B. Greenberg 건국대학교 동물자원연구센터 1998 動物資源硏究誌 Vol.19 No.-

본 연구는 두 종류의 rotavirus strain MA104 cell 상에서 동시감염시킨 후 gene이 서로 교차된 새로운 reassortants를 선발하기 위해 수행하였으며, 수행한 결과는 다음과 같다. 1. EHP T 와 RRV를 MA104 세포에 감염시켜 cytopathic effect(CPE)를 확인하였으며 확인된 virus를 수확하였다. 2. Coinfection의 mobility of infection은 각각 EHP T는 0.3(3*10?? PFU), RRV는 2.5(2.5*10?? PFU)이었다. 3. EHP T와 RRV를 coinfection하여 plaque assay에 의해 형성된 plaque들을 pick up하였다. 4. EHP T와 RRV를 동시감염시켜 얻어진 plaques를 MA104 cell에 재감염한 후 grow up하여 수확하였다. 5. Plaques를 24 Well의 MA104 cell에 감염하여 수확한 후 dsRNA를 추출하여 전기영동에 의해 26개 reassortants를 선발하였다. This study was carried out to select new reassortants whose genes were exchanged by confection of two strains. The results obtained in these experiments were as follows: 1. Cytopathic effect was checked out in the experiment in which made MA104 cells infected by EHP T (murine rotavirus) and RRV(simian rhesus rotavirus). And then the viruses were obtained from the procedure. 2. Mobility of infection(MOI) of EHP T and RRV were 0.3(3*10?? plaque forming units) and 2.5(2.5*10?? plaque forming units)respectively. 3. After coinfection of EHP T and RRV, plaques which formed in plaque assay were picked up. 4. Coinfected EHP T and RRV plaques were grown up in 24 well of MA104 cell and then grown-ups or those were obtained. 5. By polyacrylamide gel electrophoresis(PAGE) of dsRNA extracted above, 26 reassortants were selected.

Tailoring thermal and moisture absorption properties of Nylon 4,6 copolymers by incorporating ε-caprolactam

김남철,조홍찬,백배현,안태환,김영준 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1

At the meeting thermal and moisture absorption properties of Nylon 4,6 copolymer via melt polymerization will be discussed. Nylon 4,6 is obtained from Nylon 4,6 salt via melt polymerization, and is sold under trade name of “Stanyl”. It has excellent physical properties such as high stiffness, good toughness, and high thermal stability. However, it has poor melt processability due to its high melting point (~290 oC). Monomer of nylon 6, ε-caprolactam, was incorporated to tailor melting point and moisture absorption of nylon 4,6. Nylon 4,6/6 copolymerization with various mole ratios were carried out in a Parr reactor by melt polymerization. Their thermal and moisture absorption properties were interpreted in terms of physicochemical characteristics nylon 4,6/6 copolymers.

Vascular Endothelial Growth Factor 165(VEGF165) 발현 벡터(pCK-VEGF)의 랫드와 마우스에서의 급성독성 ( Acute Toxicity of pCK-VEGF in Rats and Mice )

이영주,조홍찬,박은진,안병옥,김덕경,김선영 한국독성학회 2000 Toxicological Research Vol.16 No.1

Tailoring thermal and moisture absorption properties of Nylon 4,6/6 copolymers by incorporating polar monomers capable of hydrogen bonding

이두현,김남철,조홍찬,백배현,안태환,김영준 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1

At the meeting thermal and moisture absorption properties of Nylon 4,6/6 copolymer by incorporating polar monomers capable of hydrogen bonding via melt polymerization will be discussed. Recently, we have developed nylon 4,6/6 copolymer with moisture absorption of 5.67% and melting point of 219°C. But nylon 4,6/6 copolymerizations with various molar ratios were limited to tailor melting point and improve moisture absorption. In this study, diamines having amine (-NH-) or oxygen(-O-) in which can form hydrogen bonding were incorporated to tailor melting point and moisture absorption of nylon 4,6/6 copolymer. Diamines include N,N`-Bis(3-aminopropyl)ethylene diamine, tetraethylenepentamine, diethylene glycol bis(3-aminopropyl)ether and 1,4-butanediol bis(3-aminopropyl)ether. Nylon 4,6/6 copolymer with small amount (~10%) of each nylon salt were synthesized. Their thermal and moisture absorption properties were interpreted in terms of physicochemical characteristics nylon 4,6/6 copolymers with nylon salts. Keywords: polyamide, moisture absorption, thermarl property, Nylon

국내분리 유아 로타바이러스의 혈청형과 염기서열 분석

차광종,송진욱,조홍찬,김용휘,유대열,이중복,이종기,곡구효보,유제현,Cha, Kwang-Jong,Song, Jin-Ook,Cho, Hong-Chan,Kim, Yong-Hee,Yu, Dae-Yeul,Lee, Joong-Bok,Lee, Chong-Kee,Koki, Taniguchi,Yu, Jae-Hyeun 대한미생물학회 1999 Journal of Bacteriology and Virology Vol.28 No.1

Rotaviruses belong to Reoviridae causes diarrhea in human beings as well as domestic animals. This study was conducted to see what type of human rotaviruses are distributed in Seoul and Kyung-gi province. Twenty two of 81 patients showed rotavirus positive with diagnostic kit and RNA electropherosis. We isolated all of rotaviruses from the patients. Electropherotypes of 22 isolates showed 4:2:3:2 pattern whereas those migration patterns were long type. All of those isolates belonged to group A. Twenty out of 22 isolates reacted with monoclonal antibodies specific to G1, P1A and subgroup II, whereas rest of them, A-29 and K-30 reacted with subgroup I specific monoclonal antibody. The nucleotide sequence of an isolate K-21 showed $98{\sim}100%$ and $90{\sim}96%$ homologies with those of Wa and KU strain, respectively.

Synthesis and Characterization of Polypyrrolidone and its copolymers

김남철,김민웅,조홍찬,김지흥,유영태,김동국,김영준 한국공업화학회 2011 한국공업화학회 연구논문 초록집 Vol.2011 No.-