[특집, 韓國文集(한국문집)과 漢學硏究(한학연구) : 韓中(한중) 文化(문화)의 교차적 이해 (1)] ; 滄江(창강) 金澤榮 壽序(수서) 연구 -韓(한),中(중) 知識人(지식인) 교류 연구의 반성적 검토를 겸하여-

김우정 ( Woo Jeong Kim ) 고려대학교 민족문화연구원 2013 民族文化硏究 Vol.61 No.-

滄江 金澤榮(1850~1927)은 쇠망하는 조선을 등지고 망명을 택했고, 渡中 이후 명망가들과 교류하며 활발한 저술 활동을 한 까닭에 한·중 양국으로부터 공히 많은 주목을 받았다. 그러나 이에 관한 연구 중에는 중국 문인의 가르침을 받았다 거나 서구 문명과 유교 정신을 결합하여 근대화의 출구를 찾고자 한 계몽사상가로 변모하였다는 식의 일방적 수수관계로 규정한 사례도 보인다. 이 글은 김택영 이 지은 壽序를 통해 이러한 주장이 편향적임을 드러내고자 했다. 김택영은 24편의 수서를 남겼는데, 이는 조선의 역대 문장가 가운데 압도적으로 많은 양이다. 본래 수서는 상업이 발달한 중국 明代 江南 지역에서 유행한 통 속문의 일종이지만, 歸有光에 의해 應酬文字의 한계를 극복하고 문학적 생명력을 부여받았다. 김택영은 ‘震川의 아들’이라고 불릴 정도로 귀유광에 심취하였으므로 수서의 창작에 있어서도 많은 영향을 받았다. 그런데 그 특징을 살펴본 결과, 당 대의 현실과 내면 의식을 투영하거나 상인·부녀자 등 사회적 약자에 대해 애정 어린 시선을 보인 점, 일화를 통해 인물과 사건을 부각하는 수법 등 귀유광의 수 서와 닮은 점도 있었지만, 서사를 중심에 두고 의론을 착종함으로써 찬술 의도를 드러내거나 진지하고 엄격한 내용을 간결 명쾌하고 자연스러운 문체에 담아낸 점 과 같이 귀유광의 수서에선 잘 발견되지 않는 특징도 확인할 수 있었다. 또 귀유 광의 수서를 폄하한 曾國藩을 강하게 비판하였는데, 그 논리의 근저에는 문학을 학문에 종속된 것으로 보지 않는 태도와 『史記』의 ‘神韻’ ‘神味’를 준거로 삼는 창 작론이 있었다. 이는 기실 조선 문단에서 지속적으로 제기되어 온 것으로, 김택영 이 귀유광을 높게 평가한 것도 이러한 전통의 연장선상에서 이해될 수 있다. 김택영은 결코 19세기 조선이라는 시대와 공간을 이격하여 귀유광에게 가 닿은 것이 아니며, 봉건적 계급관념을 탈각하고 근대로 나아간 계몽사상가도 아니었다. 망명 기간 중 중국의 자유로운 학문 풍토의 영향을 받았지만 儒學과 단절 하지 않았고 서양을 新學을 부정하는 모습도 보였다. 김택영 학문적 특징과 문학 적 특징을 객관적으로 바라보려면 그의 학문과 문학의 형성에 영향을 끼친 한·중 양국의 모든 요인들이 균형 있게 고려되어야 마땅하다. Changkang Kim Taek-young (1850~1927) chose asylum, leaving declining Joseon dynasty. After defecting to China, interacting with men of repute, he did writing work. So, he drew attention from both Korea and China. But, among studies on this activity, there is a case that this was prescribed as lopsided receiving relation in the style that he changed into a philosophe who tried to seek exit of modernization, getting a lesson from a Chinese literary man or uniting Western civilization and Confucian spirit. This writing was intended to show these suggestions are deflective through Su-seo written by Kim Taek-young. Kim left 24 pieces of Su-seo, and these are overwhelmingly lots of quantities among all writers in Joseon. Originally, Su-seo is a kind of colloquial writing which was popular in the Jiangnan Region in Ming China where commerce developed; however, overcoming the limit of Eungsu letters by Gui You-guang, it was given literary life. Since Kim was absorbed in Gui You-guang as much as he was called “son of Jincheon(震川)”, Kim was influenced a lot by Gui in creation of Su-seo. By the way, after looking into the features of Kim’s writing, though there are similar points with Su-seo of Gui You-guang like reflecting reality and inner consciousness of Kim’s time, showing a fond look on second-class citizens such as merchants, women, etc., and standing out characters and events through anecdotes; by collecting arguments centered on narration, like presenting his writing intention or containing serious and strict contents in his simple and natural writing style, his own features that were not found out in Su-seo of Gui You-guang could be checked. Also, Kim criticized strongly Zeng Guo-fan who denigrated Su-seo of Gui You-guang. In the basis of Kim’s logic, there were an attitude that literature is not subordinate to learning and a creation theory that made “superb spirit(神韻)” and “superb taste(神味)” of Shiji(史記) as a standard. In fact, these were things that Joseon’s literary circles brought up consecutively, so the fact that Kim Taek-young evaluated Gui You-guang highly can be understood in this traditional extension. Kim did not touch Gui You-guang by dividing time and space called 19th century Joseon dynasty, and also he was not a philosophe who got rid of feudal class concepts and went forward into modern era. Though he was influenced by Chinese free learning characteristics during his exile in China, he did not break off Confucianism and showed a look to deny Western new sciences. If we look at academic and literary features of Kim Taek-young objectively, it is suitable that all factors of both Korea and China which influenced the formation of his study and literature should be considered evenly.

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

한국철학 : 김창협의 지각론과 퇴율절충론의 관계에 대한 일고찰 -지각(知覺)과 지(智)의 분리에 따른 도덕심리학적 견해-

김우형 ( Woo Hyung Kim ) 한국철학사연구회 2014 한국 철학논집 Vol.0 No.40

이 논문은 農巖 金昌協(1651~1708)의 철학에 대해 기존연구에서 퇴율절충론으로서 평가해오던 것을 근래의 그의 지각론에 관한 연구성과와 관련시켜 재조명해보려는 시도에서 기획된 것이다. 김창협은 송시열의 주자주의의 수립이라고 하는 문제의식을 계승하여 이황과 이이의 학설을 종합하는 과제를 부여받았다. 그 해결의 단초는 마음의 지각(心知)과 “지의 작용”으로서의 지각(智知)을 정합적으로 설명하는 것이다. 김창협은 心論에 있어 기본적으로 이이와 송시열을 계승하지만, 지각을 마음의 실체와 작용 전체를 가리키는 것으로 확장시켰다. 지각은 내적 본성에 의해 작동되지만 지각의 원리는 알 수 없기 때문에 허령한 기가 스스로 지각 작용을 하는 것이라고 말해야 한다. 따라서 지각의 원리는 부정되며, 본성의 원리는 대상으로서 자각해야 하는 도덕적 원리로 간주된다. 즉, 지는 지각의 원리가 아니라 대상으로서 옳고 그름에 대한 도덕적 원리이다. “지의 작용”으로서의 지각은 부정되며, 이로써 지각과 지, 인식과 도덕은 분열된다. 인식과 단절된 도덕은 감정과 같은 복잡한 심리적 구조와 작용에 의해 설명되어야 할 문제이다. 김창협의 퇴율절충론은 理乘을 이황의 理發처럼 선한 본성에 내재한 도덕적 원리의 자각으로 확대 해석한 데서 비롯된다. 그는 선한 본성과 사단을 이론적으로 긍정함으로써 이이와 송시열의 결과주의와 외재주의로부터 이탈한다. 이로써 김창협의 사단칠정 인심도심에 대한 견해는 대체로 내부의 심리적 요인을 중시하는 도덕심리학적 경향을 띤다. 즉, 심기의 청탁과 도덕원리의 결합 비율로써 인심과 도심, 선과 악이 결정된다는 것이다. 이러한 내적 심리상태는 우연적 요소들의 조합이기 때문에 파악하기가 어렵다. 김창협의 이와 같은 절충적 견해는 이황과 이이와 다른 제3의 새로운 입장이라고 할 수 있으며, 오늘날 도덕심리학적 관점에서도 흥미로운 통찰을 준다고 평가할 만하다. This article is planned to shed light on the relationship between Kim Changhyup`s (金昌協, 1651~1708) theory of Jigak (知覺, psychological function) and his compromise on Yi Hwang (李滉) and Yi I`s (李珥) uncompatible ethical thoughts. Kim`s task was to establish the Zhuziism as ideology in Joseon Dynasty on the basis of the synthesis between Yi Hwang and Yi I`s doctrines. Although Kim succeeded to Yi I and Song Siyeol (宋時烈) in the theory of heart-mind, he extended the concept of jigak as denoting the psychological entity and function of heart-mind. While he disapproved of the principles of psychological function, he interpreted the principles of nature as moral principles that human beings should realize as the object. Ji (智) is not the principle of psychological function but the moral principle of right and wrong. Therefore he separated the psychological function from the ji. This separation implied the division of cognition and morals in psychological function. Kim`s compromise on Yi Hwang and Yi I was derived from his theory of psychological function as such. His moral psychology, which attached importance to psychological factors and mechanism, deviated from Yi I and Song Siyeol`s externalism and consequentialism. According to Kim`s thought, the ratio of combination between the clarity of psychological energy and moral principle of nature determines whether emotion is good or not. Kim`s moral psychology can be entitled as the third position different from Yi Hwang and Yi I, which is able to give interesting insight to moral psychology today.

김중업의 「경주 석굴암 보수공사 설계」(1961-1962)에 관한 고찰

우동선,김태형,Woo, Don-Son,Kim, Tae-hyung 한국건축역사학회 2021 건축역사연구 Vol.30 No.4

This study examines the Gyeongju Seokguram Grotto restoration project (1961-1962) by architect Kim Chung Up (1922-1988) and introduces the documents he wrote at the time of planning. The study highlights Kim's Plan attempt to adopt Buckminster Fuller's idea of the Geodesic Dome, while inheriting the architect Pai Ki Hyung's previous design plan which was nullified. As Seokguram Grotto's water leak and deterioration issues have been brought up, the four-times survey was carried out by experts team between 1958 and 1960, under Ministry of Education's direction. Pai designed an initial restoration plan based on the survey's result, which was a double-dome structure with a concrete film on the outer periphery as a way to protect Seokguram Grotto in January 1961. However, as drawbacks, such as the heavy load of the concrete dome, and non-installation of entrance hall, have been indicated in the review process, the Cultural Properties Committee rejected the plan. Subsequently, Kim was appointed as the supervisor of the second restoration project. Kim drew up a process management schedule to be implemented from August 1961 to December 1963 and designed the conception plans for the second restoration design. This study analyzes Kim's Plan by examining sketches, site plans, floor plans, and sections. Kim planned to maintain the idea of the double-dome structure proposed by Pai while applying Buckminster Fuller's idea of the Geodesic Dome. Kim planned to lighten the dome structure by applying a steel-frame Geodesic Dome so that the dome structure could be supported by its own. The study is expected to reclaim the omitted parts from Seokguram Grotto's historical description and Kim's careers.

아스팔트 콘크리트의 고온변형저항 특성 측정방법 개발

김광우,이문섭,김중렬,이순제 강원대학교 부설 석재복합신소재 제품연구센터 2002 석재연 논문집 Vol.7 No.-

본 연구는 정하중하에서 아스팔트 혼합물의 소성변형 저항특성을 측정할 수 있는 새로운 시험방법을 개발하기 위하여 수행되었다. 2가지 골재(편마암, 화강암)와 6가지 아스팔트(일반아스팔트, 5가지 개질 아스팔트)를 사용하여 총 12개의 밀입도 혼합물을 제작하였다. 마샬 배합설계를 통해 최적아스팔트 함량을 구하고, 결정된 최적아스팔트 함량으로 마샬공시체(S=10 cm)와 자이레토리 공시체(S=15cm)를 제작하여 마샬안정도시험, 휠 트랙킹 시험, 개발된 김테스트(Kim -test)를 수행하였다. 김테스트는 공시체와 하중봉을 지지할 수 있는 김시험장치(Kim tester)를 이용하여 하단이 반경(r) 0.5 또는 1.0cm로 원형절삭한 직경(D) 3cm, 4cm의 하중봉을 사용한다. 또한 재하는 마샬 하중재하 장치를 사용하여 공시체를 60℃ 수조에 30분동안 수침시킨 후 실시되었다. 정하중은 공시체의 직경방향이 아닌 축 방향으로 50 mm/min가 가해졌고, 최대하중(P_max)과 수직변형(y)이 측정되었다. 마샬안정도시험과 간접인장강도시험에서 얻어지는 것과 유사한 곡선이 각각의 시험에서 얻어졌다. 강도값은 P_max, r, y 및 H(=D-2r)을 이용한 K_D=4P_max/π(H+2√(2ry-y^2))^2식을 통하여 계산하였고, 이를 변형강도(kgf/㎠)로 정의하였다. 실험결과, 공시체 직경이나 골재종류보다는 하중봉과 하중봉 하단의 원형처리 여부가 K_D와 P_max 값에 영향을 미치는 것으로 나타났다. 통계분석결과에서 K_D가 소성변형 깊이와 동적 안정도에 높은 상관성을 보였다. 향후 연구를 통해 K_D의 유효성이 검증된다면, Kim-test는 아스팔트 혼합물의 소성변형 저항성을 판단할 수 있는 시험방법으로 사용될 수 있을 것이다. This study dealt with developing a new approach for finding properties which might represent rut resistance characteristics of asphalt mixture under static loading. Two aggregates, a normal asphalt (pen 60-70) and 5 PMAs were used in preparation of 12 dense-grade mixtures. Marshall mix design was used in determination of the optimum asphalt content (OAC) and each mixture at the OAC was prepared for a newly-developed Kim test on Marshall specimen (S=10 cm) and gyratory specimen (S=15cm), and for wheel tracking test. Kim test used Marshall loading frame and the specimen was conditioned for 30min at 60℃ before loading through Kim tester, and apparatus consisting of a loading column and a specimen and column holder. Diameter (D) of column was 3cm and 4cm with each column having different radius (r) of round cut at the bottom. The static load was applied at 50mm/min in axial direction of the specimen, not in diameteral direction, and the maximum load (P_max) and vertical deformation (y) at the maximum load point were measured. A curve, similar to the one from a Marshall test or static indirect tensile strength test was obtained from each test. A strength value was calculated based on the P_max, H(=D-2r). r and y by using the equation K_D=4P_max/π(H+2√(2ry-y^2))^2 and is defined as deformation strength (kgf/㎠). The values of P_max/y and K_I=K-D/y were also calculated to see if these have any correlation with rutting. In general, D and r were significant factors affecting K_D, while specimen size was not. The statistical analyses results showed the K_D had the best correlation with rut depth and dynamic stability. The next best correlation was found from P_max which was followed by P_max/y and K_I in order. Therefore, K_D can be used for selecting the highly resistable asphalt mixture against permanent deformation.

정부 조직개편의 정치권력적 성격 : 김영삼정부'와 '김대중정부'의 중앙행정기구개편 사례 Kim Young Sam and Kim Dae Joong Administrative Cases

김우식 청주대학교 사회과학연구소 2005 한국사회과학연구 Vol.27 No.2

이 연구의 목적은 정부조직 개편의 정치권력적 특성을 밝히는 것이다. 이러한 특성은 두 가지 측면에서 나타난다. 하나는 정권의 담당 주체들이 정치적 목적을 가지고 조직개편을 시도하게 되어 처음부터 정치적 성격을 갖고 출발하는 경우가 많다. 또 다른 하나는 정부조직의 개편이 기존의 조직을 변동시키는 적극적 작용이기 때문에 조직 개편이 기존의 이해구조를 변화시키게 됨으로써 이해 당사자들은 변화의 결과 자신의 이익을 극대화하기 위하여 여러 노력을 경주하게 된다. 이러한 과정은 필연적으로 정치권력적 상호작용을 수반하게 되어 정부조직개편은 정치적 성격을 강하게 나타내게 된다. 조직개편의 정치권력적 속성을 밝히기 위하여 김영삼 정부(1993년 2월~1998년 2월)와 김대중 정부(1998년 2월~2003년 2월) 기간 동안에 이루어진 조직개편 사례를 분석 대상으로 선정하여 정치권력적 속성을 비교 분석하였다. 분석에서는 조직개편의 정치적 상황 요인, 조직개편의 목표, 조직개편의 추진세력과 힘의 소재, 조직개편의 의사결정과정, 그리고 조직개편의 결과(내용)를 분석 요소로 선정하였다. Structural reform of government is a power political phenomenon. Reform is accompanied by many changes of invested interests among administrative agencies and bureaucrats. And they are intersted in advantages or disadvantages which the newly reformed structures are able to offer. So power politics is natural in changing world of reforming governmental structures. Two Kim's Adminstratives initiated many important periodical reformations in government structure. Many environmental factors and political reasons made tow Kims push administrative agencies reformation. In the process of reforming changes many revolts has been burst and many interests were struggling for maintaining or expanding their agencies. These problems can be solved by political actions among actors. So power political characteristics is unavoidable in reforming governmental structures. This study focused on and analyzed political characteristics of reorganizing environmental demands, goals of reorganization, locus of power of initiating reform, decision making process and results of reorganized structures in the reformed cases from Kim Young Sam Administrative to Kim Dae Joong Administative.

정상면역을 가진 성인에서 발생한 식도 방선균증

김현수 ( Hyun Soo Kim ),천종운 ( Jong Woon Cheon ),김민수 ( Min Su Kim ),정창길 ( Chang Kil Jung ),김경록 ( Kyung Rok Kim ),최재원 ( Jae Won Choi ),강동우 ( Dong Woo Kang ),김선영 ( Sun Young Kim ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.2

Hyun Soo Kim, Jong Woon Cheon, Min Su Kim, Chang Kil Jung, Kyung Rok Kim, Jae Won Choi, Dong Woo Kang and Sun Young Kim1 Departments of Internal Medicine and Pathology1, DongKang Medical Center, Ulsan, Korea Actinomycosis is a chronic suppurative disease and caused by Actinomycosis species, principally Actinomyces israelii, which are part of the normal inhabitant on the mucous membrane of the oropharynx, gastrointestinal tract, and urogenital tract. It usually affects cervicofacial, thoracic and abdominal tissue. Cervicofacial type has the highest percentage of occurrence with 50%. Actinomycosis frequently occurs following dental extraction, jaw surgery, chronic infection or poor oral hygiene. It may also be considered as an opportunistic infection in immunocompromised patients such as malignancy, human immunodeficiency virus infection, diabetes mellitus, steroid usage or alcoholism. But, actinomycosis rarely occurs in adults with normal immunity and rare in the esophagus. We report an unusual case of esophageal actinomycosis which was developed in a patient with normal immunity and improved by therapy with intravenous penicillin G followed oral amoxicillin, and we also reviewed the associated literature.

방사선 처리에 의한 돌연변이육종 (突然變異育種) (2) X 선 및 열중성자가 배추와 무우 기건종자에 (氣乾種子) 미치는 영향

김동우(Dawng Woo Kim),김랑춘(Yang Choon Kim),조미경(Mi Kyung Cho) 한국식물학회 1962 Journal of Plant Biology Vol.5 No.1

Kim. Dawng Woo, Yang Choon Kim and Mi Kyung Cho(Horticultural Experiment Station, Seoul, Korea)-Breeding Experiment on Mutation Induction by Irradition. (2) Effects of X-ray and Thermal Neutron Irradiation on Dry seeds of Chinese cabbage and Radish. Kor. Jour. Bot. Vol. V. No. 1. p.1∼6. 1969 : With the aims to find the biological effects of X-ray and thermal neutron on dry seeds of Chinese cabbage and radish, and to examine the utility of artificial mutation in plant breeding, this experiment was carried out through the treated and next generation. The results obtained are summarized as follows: 1) Germination rate was rather irregular than decreasing as increasing dose of radiation and there were no differences between Kyong-Sam and Chyong-Bang of Chinese cabbage. 2) In R_l generation, abnormal leaves from seedling of irradiated seeds were observed. These were more apparent in X-ray irradiation than in thermal neutron. 3) Seedling height was inhibited with increasing dose of X-ray and thermal neutrons. Growth inhibition was more remarkable in X-ray than in thermal neutron. Kyong-Sam demonstrated more sensitivity than Chyong-Bang in both X-ray and thermal neutron. 4) Seedling height produced from seeds subjected to thermal neutrons showed small variation around its mean value, while in X-irradiation there was a greater deviation from the mean value. 5) Fertility was decreased as increasing with dose, while the frequency of abortive pollen was increased. There were variability of the fertility and frequency of abortive pollen among plants or branches of a plant. 6) The mutants were obtained more in thermal neutron irradiation than in X-ray. The types of mutations obtained in Chineae radish of R_2 generation were abnormal leaf, densely glowing leaf, degeneration in growing point and dwarf. The maximum frequency of phenotypic mutations was abnormal leaf mutation.

An introduction to the recently excavated Chunggang Medical Records and research on their medical value

Kim, Nam-Il,Yun, Seng-Yick,Hong, Sae-Young,Ahn, Sang-Woo,Cha, Wung-Seok Kyung Hee Oriental Medicine Research Center 2007 Oriental pharmacy and experimental medicine Vol.7 No.2

This study is a report on recently discovered medical records based on traditional medicine in the 1900s. First, the contents of the records and their significance are described in detail. Next, a simple example of the research follows, in order to explain the medical and historical significance the records contain and to answer the question of how this historical document can contribute to future medical and historical studies. The documents dealt with in this study, the Chunggang Medical Records, are medical records compiled by a Korean doctor of oriental medicine by the name of Younghun Kim who practiced in the center of Seoul for a period of over 60 years. The records, which eventually amounted to over 1,500 books, were made known to the academic world when the descendents recently donated them to Kyunghee University. The reason these medical records attract so much attention from academic circles, even though they are the work of one individual, is that they contain abundant information on general public medical health at the time, in addition to the fact that Kim Younghun was a well known figure among Oriental Medicine doctors in Korea. The medical records start in 1915 and continue until Kim Younhun's death in 1974, though they have some damaged or missing parts. Kim's medical records are a gold mine not only for scholars studying the medical history of the early 1900s, but also for doctors trying to emulate the techniques embedded in a great predecessor's medical practice.

TEOS 솔 침전공정에서 SiO2 과포화 농도 및 입자 크기에 미치는 반응조건 영향

김경수,김선근,김우식,김성수,김준경 한국화학공학회 2000 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.38 No.6

본 연구에서는 솔 침전공정에서 TEOS(Tetraethylorthosilicate) 반응물을 이용하여 실리카 분말 합성시에 TEOS 농도, 물농도, 반응물 주입속도, 교반속도 등의 반응조건이 실리카 과포화 농도 및 입자크기에 미치는 영향에 대해 연구하였다. TEOS 반응물과 물 농도가 증가할수록 입자유도시간은 짧아졌으며 입자유도시점에서의 과포화 농도는 감소하였다. 그러나, 반응물 주입속도가 입자유도시간과 입자유도시점에서의 과포화 농도에 미치는 영향은 서로 상반되었다. 즉, 반응물 주입속도의 증가에 따라 입자유도시간은 감소하였으나 입자유도시점에서의 과포화 농도는 증가하였다. 반응조건에 따라 서로 다른 과포화 농도에서 입자가 유도되는 것은 입자의 형성에 있어서 과포화도 이외의 용액의 조건에도 영향을 준다는 것을 의미하는 것이다. 한편, 교반속도는 입자유도시간과 유도시점에서의 과포화 농도는 거의 영향을 주지 않았다. 이것은 솔 침전공정에서 반응물 혼합시간이 충분히 짧아 실리카 생성에 있어서 반응속도가 입자유도 및 과포화 농도 결정에 가장 크게 영향을 미쳤기 때문이다. 반응조건에 따른 가수분해 및 축합 반응속도를 Kim등[15]이 제시한 식을 이용하여 예측하였으며 이 결과는 본 실험에서 측정한 입자유도시간의 함수로도 매우 잘 묘사될 수 있었다. 또한, 반응조건에 따라 합성된 최종입자의 크기 변화도 입자유도시간의 함수로 훌륭히 묘사될 수 있음을 보여 주었다. In a single feed semi batch reactor effects of reaction conditions, such as TEOS and water concentrations, react feed flow rate and agitation speed, on the silica supersaturation and particle size synthesized in sol precipitation were investigated. As the TEOS and water concentrations increased, the particle induction time and the supersaturation at the particle induction point were reduced. However, the dependencies of the particle induction time and supersaturation at the particle induction point on the reactant flow rate were opposite to each other. That was, the particle induction tune decreased with increase in the reactant flow rate but the supersaturation at the particle induction point increased. The fact that the supersaturation level to induce the particle was varied with the reaction condition implied that the solution condition determined by the reaction condition as well as the supersaturation level was important to the particle induction. Meanwhile, the particle induction time and supersaturation at the particle induction point were little influenced by the agitation speed in the reactor. This result was due to the micromixing time being short enough in comparison to the reaction time of TEOS. Thus, the particle induction time and supersaturation at the particle induction point was predominantly determined by the reaction time rather than the micromixing time of TEOS. The reaction rate constants of TEOS hydroysis and condensation, which was predicted with Kim et al.'s equations [15] at the reaction conditions was described as a function of the particle induction time. In addition, the particle size synthesized at the reaction conditions was able to be well fitted as a function of the particle induction time.