지난 2년간의 학회지 "신경정신의학" 심사 평가보고

김찬형,김세주,김도관,김성곤,박원명,송동호,박용천,이영문,오강섭,정영철,이상열,김주한,이동영,이헌정,함병주,김율리,김문두,김정진,이강욱,천근아,김재진,홍진표,홍승철 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.6

교대로 운전되는 두 개의 UV/광촉매반응기로 구성된 폐가스 처리시스템에서의 광촉매의 비활성화 및 재생 특성

이은주 ( Eun Ju Lee ),정찬홍 ( Chan Hong Chung ),임광희 ( Kwang-hee Lim ) 한국화학공학회 2021 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.59 No.4

본 연구에서는 교대로 운전되는 두 개의 UV/광촉매 반응기로 구성된 폐가스 처리시스템의 운전단계와 단계별 광촉매의 비활성화의 상관관계를 사용된 광촉매에 대한 기기분석을 통하여 규명하였다. 선행연구[Lee와 Lim, Korean Chem. Eng. Research, 59(4), 574-583 (2021)]의 광촉매 반응기 시스템 운전에 사용되지 않은 광촉매를 담지한 다공성 SiO₂ 담체(A4), 1회 운전하는 동안 사용되고 재생을 경험하지 않은 광촉매를 담지한 다공성 SiO₂ 담체(A1), 2회 운전에 사용되고 1회 재생된 광촉매를 담지한 다공성 SiO₂ 담체(A2) 및 3회 운전에 사용되고 2회 재생된 광촉매를 담지한 다공성SiO₂ 담체(A3)와, 1차 재생(AD1) 또는 3차 재생(AD3)된 광촉매를 담지한 다공성 SiO₂ 담체에 대한 BET 분석, SEM, XPS, SEM-EDS 및 FTIR 분석 등을 수행하여, 광촉매를 담지한 다공성 SiO₂ 담체의 비활성화 및 재생 특성을 포함하는 특성 분석을 수행하였다. 그 결과로서, 3회 이상의 여러 번 재생을 수행하는 광촉매의 적정 재생 온도를 200℃ 미만으로 도출하였다. 이러한 광촉매의 적정 재생 온도는 BET 분석결과에서 도출된 기공에 흡착된 에탄올 산화분해 중간생성물의 대부분이 완전 분해가 되어 기공이 재생되는 재생 온도와 거의 일치하였다. 특히, XPS 분석 결과는, 선행 연구[Lee와 Lim, Korean Chem. Eng. Research, 59(4), 574-583 (2021)]에서 광촉매 반응기의 첫 번째 운전 후에 광촉매의 미세한 비활성화가 발생하였음을 나타내었다. 또한, XPS 분석 결과는, 선행연구[Lee와 Lim, Korean Chem. Eng. Research, 59(4), 574-583 (2021)]에서 광촉매 반응기의 두 번째 운전에서 비교적 큰 광촉매의 비활성화가 발생하여 첫번째 운전성능보다 약 5%만큼 못 미치는 에탄올과 황화수소 각각의 제거효율을 초래하였으나, 세 번째 운전에서의 에탄올과 황화수소의 제거효율은 두 번째 운전에서의 에탄올과 황화수소의 제거효율 실험 결과와 거의 비슷하였다는 연구 결과와 일치하였다. 한편, AD3를 사용하여 선행연구[Lee와 Lim, Korean Chem. Eng. Research, 59(4), 574-583 (2021)]에서와 같은 광촉매 반응기의 네 번째 운전을 수행할 것을 가정하면, 두 번째 운전에서보다 더 큰 광촉매의 비가역적 비활성화의 발생으로 인하여 에탄올과 황화수소 제거효율이 가장 크게 저하되리라 예상되었다. In this study, the correlation between operating stages of waste air-treating system composed of two alternatively-operating UV/photocatalytic reactors, and the deactivation of photocatalyst used in each operating stage, was investigated by instrumental analysis thereon. The repeated deactivation and subsequent re-generation of photocatalyst used in the waste air treating system of previous investigation performed by Lee and Lim (Korean Chem. Eng. Research, 59(4), 574-583(2021)), were characterized on virgin photocatalyst-carrying porous SiO₂ media (A4), used photocatalystcarrying porous SiO₂ media (A1, A2 and A3) collected from the corresponding photocatalytic reactor upon 1^st, 2^nd, and 3^rd run, respectively, regenerated photocatalyst-carrying porous SiO₂ media upon 1 time-run (AD1) and 3 times regenerated photocatalyst-carrying porous SiO₂ media upon 3 time-runs (AD3) by instrumental analysis including BET analysis, SEM, XPS, SEM-EDS and FT-IR. As a result, the proper regeneration-temperature for deactivated photocatalyst to be regenerated several times (more than 3 times), was suggested below 200℃. Such temperature of deactivated photocatalystregeneration was almost consistent to the one, according to BET analysis, at which tiny nano-pores blocked by adsorbed ethanol-oxidative and degraded intermediates (AEODI), were regenerated to be reopened through almost complete mineralization of AEODI. In particular, the results of XPS analysis indicated an incurrence of insignificant deactivation of photocatalysis upon 1^st run of UV/photocatalytic reactor (A or C) of the previous investigation. In addition, the results of XPS analysis were consistent with the experimental results of the previous investigation in that 1) deactivation of photocatalyst incurred during 2^nd run of the UV/photocatalytic reactor (A or C) resulted in decreased removal efficiency, by ca. 5% and 5%, of ethanol and hydrogen sulfide, respectively, compared with its 1^st run; 2) there was insignificant difference between the removal efficiencies of its 2^nd run and 3^rd run. Furthermore, the removal efficiencies of ethanol and hydrogen sulfide for hypothetical 4^th run of photocatalytic reactor in the previous investigation, using AD3, were expected to decrease, compared with its 3^rd run, by much more than those for 2^nd run in the previous investigation did, compared with its 1^st run.

고려인삼의 홍삼 품질평가요인 분석

정찬문,엄유리,김상민,이이,이문순 忠北大學校 農業科學硏究所 2012 農業科學硏究 Vol.28 No.2

This study was conducted to evaluate the elements affect on the quality of red ginseng. For that purpose, we surveyed the relationship between the red ginseng quality and the properties of material ginseng, processing methods, root year, root size, production location, and cultivation methods. Six-year old raw ginseng caused higher inside cavity than younger one did and larger sized ginseng increased outside cracking and inside cavity but decreased inside white than smaller sized one did. The production location did not affect the quality of red ginseng. The red ginseng processed with the ginseng grown on upland field showed lower outside cracking and inside cavity than the red ginseng processed with the ginseng grown on paddy field did. In terms of cultivation method, transplanting method showed lower inside cavity and inside white rates than direct sowing method did. In conclusion, ginseng cultivation location and cultivation method affected on the quality of the red ginseng more than the root age, root size and production location did.

우리나라 근대무용의 발전과정

정찬모,이미경 한국체육사학회 2002 체육사학회지 Vol.10 No.-

The purpose of this study was to review the development of Korean modern dance from its traditional dance to its creative dance. For this purpose, the transition or development from traditional dance to modern dance was examined, and thereby, concepts of the modern dance and its historical implications were reviewed longitudinally. In terms of historic and social backgrounds, the development of our modern dance for the period of 1895 ~ 1979 was featured by dividing it into four stages: initial period, growth period transitional period and developmental period. During the Japanese colonial period our traditional dance was promoted to theater dance, which helped to enhance people's awareness of our traditional dance. By 1926, the Japanese dancer Ishi Baku(石井漠) came Korea only introduce the Western dance to our dance community, and as a result, such world-renowned dancers as Choi Seung-hee and cJo Taek-won emerged. While Korea was emancipated from Japan and suffered for the Korean War, our dance community witnessed the efforts to recover the traditional dance with the vigorous cultural movement and search for our own dance aesthetics. After all in 1979, our dance community would witness a traditional dance festival conducive to creative dances. Summing up, the traditional dance was promoted around 1900 when it was presented on the stage, and thereby, many professional dancers began to be engaged in dance. On the other hand, the professional dancers pursued a modern art form, and thus, their social status was enhanced. Thus, in the history of our dance, the modern dame is very significant in that it linked the traditional dance with the creative one.

열린교육의 현장 정착을 위한 아이디어 탐색

정찬기오,이광우 경상대학교 1997 學生生活硏究所報 Vol.23 No.-

The objectives of this study are to examine the ideas for adoptation of open education in classroom, and then provide teachers desirable views of open education. The concrete problems in this study are as following : 1) to examine a historical development and practical program of open education. 2) to examine a ideas and views of open education. The method of this study is literature review. To adopt open education in classroom, following should be considered that the relationship of teaching and learning paradigm elements for opening education should keep logical relation, and which should be child-centered objectives, cotents, and method. The relation among teacher-content-learner should keep itself empirical, the learning tasks, contents and learning activities should also be learner-center direct empirical learning. The classroom environment should be decorated to accomplish open education's aims. It is desirable that the effect of interaction among these elements should be maximum. In addition, a crossing met logical relation connected with learning objectives-contents-method and empirical relation connected with teacher-content-learner, is more transfered learners compare to traditional instruction for an open education. as it were, the paradigm should be as centered for learning activities, contents, and teaching method as possible.

디젤 기관 대차 용접부의 내구성 평가에 관한 연구

정진성,이찬우,김호경 서울産業大學校 1999 논문집 Vol.50 No.2

The bogie frames mainly fabricate 9㎜ thick rolled steels and sometimes fatigue cracks occur in their welded joints due to inadequate fatigue design and poor weld quality. The objective of this study is to present the systematic procedure of the fatigue durability estimation and the remaining life prediction for diesel locomotive bogie frame weldments. In order for prediction of remaining fatigue lifetime, service stresses were measured at critical points, using strain gages, during field tests under several rail-roading conditions. It was found that the systematic procedure presented in this study could be applied practically to the fatigue analysis for the locomotive bogie frame weldments.

韓國 精神障碍의 疫學的 調査硏究(Ⅷ) : Generalized Anxiety Disorder 汎不安障碍

李定均,卞永贊 大韓神經精神醫學會 1987 신경정신의학 Vol.26 No.1

In order to study generalized anxiety disorder, this epidemiological survey was performed, using DIS-Ⅲ (Diagnostic Interview Schedule, version Ⅲ) Korean version by lay interviewers. Subjects were selected according to multistage cluster sampling mothod together with simple ramdom sampling and 2,865 respondents in Seoul and 1,439 in overall rural area completed the study. The results were as follows : 1) The lifetime prevalence rate was 3.40%. 2) The lifetime prevalence rate was nearly triplicated by point prevalence rate. 3) There was a tendency that prevalence rate became increased along with age and time period. 4) As for sex, prevalence rate was significantly higher in women than in men. 5) The mean age of onset of symptoms was 32.4 years. 6) The mean duration of symptoms was 74.1 weeks.

기존의 곡면 분할 알고리듬 비교 연구

李玄燦,朱柄俊,洪忠成 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

Recently, designing and visualizing 3D objects become getting more important issues in related industrial fields due to new trends such as Virtual Design using CAD(Computer-Aided Design) systems and high-speeded internet. In this paper, we compare the existing surface subdivision algorithms. Subdivision algorithm is a 3D modeling technique that generates a very smooth surface through many times of refinement processes that split polygons of control mesh into several smaller polygons. We examine the methods of calculating new vertices and topological algorithms of three existing subdivision algorithms, Doo-Sabin, Catmull-Clark, and Loop subdivision scheme in detail, and compare them to find the differences, merits and demerits. In calculating new vertices, Doo-Sabin scheme is simpler than Catmull-Clark and Loop schemes. But in topological algorithm, Catmull-Clark and Loop schemes are simpler than Doo-Sabin scheme.

인삼에 있어 변조 장뇌삼 판별에 대하여

정찬문,신주식,이이,장세영 충북대학교 연초연구소 2004 煙草硏究 Vol.19 No.-

시장에서 시판되고 있는 장뇌삼을 재료로 하여 변조 특성 및 이들 변조삼의 진위여부를 판별하고자 그 특성을 조사하였다. 장뇌삼의 변조는 뇌두와 뿌리부위를 주로 변조하는 것으로 나타났다. 뇌두부위는 경흔적수와 수근수를 늘리던가 아니면 뇌두를 장뇌로 변조하였고 뿌리 부위는 지근수 및 지근장을 늘리는 것으로 나타났다. 변조한 뇌두부위의 특징은 먼저 뇌두하단에 있는 동체의 중심주를 요(凹)모양으로 만들고 변조한 뇌두를 철(凸)모양으로 깍아 심지 박듯이 맞추는 것이었다. 또한 각기 다른 인삼의 뇌두를 교묘히 잇대어 장뇌로 만들었고 여기에 수근을 접착하여 오래된 진짜 산삼 형태와 유사하게 변조하였다. 그리고 뿌리부위는 접착면을 절편 자르듯 사선으로 잘라 접착면이 많게 하였고 후에 이들 접착면을 비벼 흔적을 없애는 수법이었다. 변조에 사용된 재료는 인삼 및 출처불명의 약초뿌리를 사용하였고 접착제는 공업용으로 접착성이 강한 것을 사용하였다. For identification of altering methods and distinction of altered long-rhizome ginseng, we studied the properties of long-rhizome ginseng which is being sold in market. Artificial long-rhizome ginsengs were made by modification of rhizomes and roots. Artificial long rhizomes were made by increasing the number of stem vestige root and rhizome root or by modification of rhizome to long-rhizome. Roots were modified by increasing of the number and the length of secondary roots. Artificial long rhizomes were made by carving the rhizome in concave shape and attaching convex shaped modified another rhizome. Those who make artificial ginseng made the altered long-rhizome ginseng looks like real long-aged wild ginseng by elongation of the rhizome by attaching many ginseng rhizomes and attaching of secondary roots. They cut the attaching surface obliquely for increased number of attaching point and removed the vestige by scrubbing the attaching region. They used ginseng, medicinal plant from doubtful origin, and industrial strong adhesives for making altered long-rhizome ginseng.

분자마커를 이용한 작물의 품종 개량과 품질관리

이이,엄유리,정찬문,석영선,이학수 충북대학교 연초연구소 2009 煙草硏究 Vol.22 No.-

분자마커는 현대 농업에서 없어서는 안 될 중요한 도구로 자리잡아가고 있으며 단백질과 DNA에 기초한 다양한 분자마커가 개발되었다. RFLP, RAPD, SSR, AFLP, CAPS, SNP, STS, DNA sequencing 등 다양한 분자마커는 독특한 특성을 가지고 있어서 용도에 맞게 분자마커를 선별하여 사용할 필요가 있다. 분자마커의 선별에서는 사용가능한 DNA의 양, DNA의 품질, 공우성 마커 여부, 비용 등을 고려해서 해야 한다. 담배에서는 주로 병저항성과 품종을 감별하기 위한 분자마커가 개발되어 이용되고 있으나 담배의 DNA 다형성이 다른 작물에 비하여 현저히 낮아 게놈프로젝트가 완성되면 resequencing을 이용하여 마커를 개발하는 것이 효율적일 것으로 보인다. Molecular marker is very important tool for modern agriculture. Various molecular markers were developed for detecting protein and DNA polymorphism. Restriction Fragment Length Polymorphism (RFLP), Random Amplified Polymorphic DNA (RAPD), Simple Sequence Repeat (SSR), Amplified Fragment Length Polymorphism (AFLP), Cleaved Amplified Polymorphic Sequence (CAPS), Single Nucleotide Polymorphism (SNP), Sequence Tagged Site (STS) and DNA sequencing are typical molecular markers commonly used. Each molecular marker has its own specific characters. Researchers have to choose a molecular marker for their own demands with considering the DNA quantity required, DNA quality required, codominance, and cost for developing and analysis. In tobacco, disease resistance and cultivar identification are the main focus of marker development. DNA polymorphism of tobacco is much less than that of other crops. Completion of genome project followed by resequencing could be a good opportunity for molecular marker development of tobacco.