편광변조 타원해석법에 의한 정밀 흡착측정기술

최병일,남현수,박남석,윤화식,임동건,Choi, B.I.,Nham, H.S.,Park, N.S.,Youn, H.S.,Lim, Tong-Kun 한국광학회 2004 한국광학회지 Vol.15 No.6

균일한 표면에서 일어나는 가파른 계단형식의 흡착에 대한 연구는 이차원 현상에 대한 이해를 한층 높일 수 있다. 이를 위해 편광변조 타원해석법을 이용한 흡착측정장치를 제작하였다. 타원해석법 신호가 흡착막 형성의 과정을 원자층 이하 (∼0.3 $\AA$)로 매우 예민하게 측정할 수 있음을 확인할 수 있었다. HOPG (highly oriented pyrolytic graphite) 표면에서의 아르곤의 흡착 다층막을 측정한 결과, 34.04 K에서는 수천여개의 흡착층이 형성되어 완전 젖음이 일어남을 관찰할 수 있었다. 또한 67.05 K에서는 선명한 계단 형식으로 일어나는 9개의 흡착과 탈착을 확인할 수 있었다. 이에서 얻은 등온흡착곡선들은 많은 열역학적 상태에 관한 정보, 표면과 기체의 결합에너지에 대한 정보, 흡착막의 구조전이에 대한 정보 등을 줄 수 있을 것이다. Studies of adsorption isotherms with sharp step-wise layer condensation help us to better understanding of two dimensional layers. For this, an adsorption isotherm apparatus, using a phase modulated ellipsometric technique, has been constructed and an adsorption experiment has been performed. With subatomic scale resolution(∼0.3 $\AA$), the adsorption processes could be observed by ellipsometric signals. On measurement of multilayer adsorption of argon on highly oriented pyrolytic graphite(HOPG), thousands of adsorbed layers were observed at 34.04 K, which suggests that the adsorption is completely wet. On the contrary nine sharp layers of steps for adsorptions and desorptions were observed at 67.05 K. These isotherms obtained can provide a lot of information about thermodynamic states, bonding energies between adsobate and substrate, and structure transitions in the adsorbed film.

악하선에 발생한 Kuttner 종양 1예

최병일,강민석,김민기,임범진,변형권,Choi, Byeong Il,Kang, Min Seok,Kim, Min Ki,Lim, Beom Jin,Byeon, Hyung Kwon 대한두경부종양학회 2015 대한두경부 종양학회지 Vol.31 No.2

$K{\ddot{u}}ttner$ tumor is a benign inflammatory disease of the salivary gland that clinically mimics a malignant tumor because of its presentation as a unilateral painless hard mass. However the precise cause of this disease is still unknown. Pathologically, it is characterized by infiltration of IgG4-positive plasma cells. Also, it is accompanied with an elevated level of plasma IgG4. We report one case of $K{\ddot{u}}ttner$ tumor of the right submandibular gland in a 37 year old woman.

터널 배수 형식에 따른 응력-침투 연계 내진해석

최병일,하명호,이동하,노은철,박시현,Byoung-Il Choi,Myung-Ho Ha,Dong-Ha Lee,Eun-Cheol Noh,Si-Hyun Park 한국구조물진단유지관리공학회 2023 한국구조물진단유지관리공학회 논문집 Vol.27 No.4

Built in urban ares tunnels is necessary to accurately grasp not only the above-ground environment of the tunnel but also the below-ground environment of the tunnel for design and construct. However, fully coupled analysis of stress and flow is very difficult due to the limited function of the tunnel numerical analysis program and difficulty in using program. This can lead to excessive design that increases the construction cost or occur problems that can lead to accidents during construction. In particular, in the case of an urban tunnel has a low layer soil section above the tunnel and the groundwater level exists in the upper layer of the tunnel. Therefore, a reduction in the groundwater level during underground construction may increase the effective stress of the upper layer and cause the ground to subsidence. So It is necessary to design after accurately evaluating the change in the groundwater level. In this study, the tunnel's behavioral characteristics were analyzed through fully coupled analysis of stress and flow according to the drainage type for an urban underground tunnel.

소양인(少陽人) 형방도적산(荊防導赤散)의 효능(效能)에 관(關)한 실험적(實驗的) 연구(硏究)

최병일,Choi, Byung Ill 사상체질의학회 1990 사상체질의학회지 Vol.2 No.1

In order to investigate experimentally the clinical effect of Soyangin-Hyongbangdojoksan (少陽人荊防導赤散) that was prescribed to cure the Bisuhanpyohanbyong (脾受寒表寒病) of Soyangin (少陽人). The author experimented various activities of dried extract from hyongbangdojoksan (Sample-I) and mixed extract of each dried extract of hyongbangdojoksan (Sample-II) by the methods prescribed in the experimental parts. The results summarized as follows. 1. In the acetic acid method experiment, analgesic effect was noted in sample-I & Sample-II. 2. Anti-inflammatory effect on the edema induced by carrageenin was noted in Sample-I. 3. Antipyretic effect is not noted in Sample-I and Sample-II. 4. On urinary volume change and blood electrolyte clearance, the result is not significant, on the contrary the urine electrolyte discharge is effective in Sample-I and Sample-II. According to the above results, the effects based on oriental medical references approximate to the actual experimental results.

소양인(少陽人) 양격산화탕(凉膈散火湯)과 인동등지골피탕(忍冬藤地骨皮湯) 및 숙지황고삼탕(熟地黃苦蔘湯)이 Alloxan 투여(投與) 고혈당(高血糖) 백서(白鼠)에 미치는 영향(影響)

최병일,송일병,Choi, byung-ill,Song, Il-byung 사상체질의학회 1998 사상체질의학회지 Vol.10 No.2

In order to investigate the effect of the Soyangin Yangkyuksanwhatang, Indongduengjigolpitang and Sookjiwhanggosamtang that are the model prescriptions for diabetic soyangin. The contents of serum glucose, insulin, total triglyceride and urine glucose, ketone-body and urine volumn and body-weights were mesured on the Alloxan-Induced diabetic Rats. The following results have been measured. 1. Yangkyuksanwhatang, Indonduengjigolpitang and Sookjiwhanggosamtang showed significant decreases on the serum glucose and particulruy Sookjiwhanggosamtang decreased significantly. 2. The contents of serum insulin on the Alloxan-Induced diabetic Rats comparing with normal group were increased in Yangkyuksanwhatang and Indongduengjigolpitang with no significance but Sookjiwhanggosamtang showed a significant increase on the serum insulin. 3. The contents of serum triglyceride were decreased in three groups, but Indongduengjigolpitang showed the significant decrease and others did not. 4. The contents of serum total cholesterol were signicantly decreased In indongduengjigolpitang but Yangkyuksanwhatang and Sookjiwhanggosamtang did not. 5. The contents of urine glucose simillary decreased in three groups. 6. The contents of urine ketone-body were not changed comparing with control group in Yangkyuksanwhatang and Indongduengjigolpitang groups, but Sookjiwhanggosamtang group showed some increase. 7. The urine volume were significantly decreased in Yangkyuksanwhatang, but Indongduengjigolpitang and Sookjiwhanggosamtang showed the decrease of urine volume with no significance. 8. Body weights were regained comparing with control group, but only Indongduengjigolpitang showed significant increase. According to the above results, Yangkyuksanwhatang, Indongduengjigolpitang and Sookjiwhanggosamtang had the effect for hyperglycemia, particulary Indongduengjigolpitang was assumed as having the effect for hyperlipemia and weight-loss induced by D. M.. Therefore, by this experiments it can be concluded that Yangkyuksanwhatang, indongduengjigolpitang and Sookjiwhanggosamtang recorded in "DongYi Soose Bowon" have the effect for soyangin diabetics.

[특별세션강연 5] 플랜트 FEED(front-end engineering & design) 설계 기반 구축

최항석(Hang Seok Choi),김용진(Yong Jin  Kim),김석준(Seock Joon Kim),최연석(Yeon Seok Choi),최병익(Byung-Ik Choi),최병일(Byung Il Choi) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.5

『포폴부』에 수록된 마야 신화 읽기

최병일(Choi, Byung-il) 한국외국어대학교 외국문학연구소 2006 외국문학연구 Vol.- No.22

This thesis attempts to examine the Mesoamericans' view of the universe, the world, life and their values. Among the myths inherited from Maya, Azteca, and Inca, a representative Mayan text of myth and history is chosen: Popol Vuh. By delving into this book to see the Mesoamericans as well as the Mayan-Quiches, the archetypal concept of the ancient Mesoamerican cultural conscious system is expected to be extracted. The followings are what Popol Vuh mainly tells about: the world creation by the consent of the three deities, Huracán, Tepeu, and Gucumatz; the underworld journey of Hun-Hunapuh who is the first ancestor of humans as well as the god of corns; another underworld journey, that is commanded by Huracán, of Hun-Hunapuh's twin sons; the creation of corn-man by the god of heaven and the god of creation; and finally the history of Mayan-Quiches. Excluding the historical account, this thesis focuses on the mythological discourse, in which the Mayan natives' mental world is dissolved, to analyze their mental and cultural system of thought. In the second chapter, the symbol of the god Huracán and two creator gods Tepeu and Gucumatz and the meaning of their participation in the Creation are analyzed. Some other symbols are also considered here: those of the twin brothers', Hunahpu and Ixbalanque's journey to the underworld and also of their accession to the seat of the god. The influence and meaning of the sun god's emergence and his circular movement are also examined. In the third chapter, the general concept that the Mesoamericans have of the underworld Xibalba is studied and the symbol both the play of pelota(juego de pelota) and the playing ground have is examined. Moreover, some meanings are analyzed concerning the death of Hun-Hunapuh, the first father of Mayans; the conception of Ixquic, the woman of the underworld, by his saliva; and her delivery. What the journey to the underworld, the place of death and rebirth, means and what the sacrificial rites imply are summarized here. In the fourth chapter, the meanings that the mud-man, the tree-man, and the corn-man have are looked into and the purpose of gods' human creation and humans' inborn fate are studied. In the fifth chapter, on the basis of the symbols and meanings found in the mythological discourse of Popol Vuh through the preceding chapters, the archetypal thinking system of the Mesoamericans as well as the Mayans is examined. This is to study their essential system of cultural consciousness.

대한민국 액체수소 인프라 구축 방안

최병일(Byungil Choi),도규형(Kyuhyung Do),김태훈(Taehoon Kim) 한국가스학회 2019 한국가스학회 학술대회논문집 Vol.2019 No.5

댄스스포츠의 채점방식에 관한 비교연구 -합산식(Total system) 채점방식과 스케이팅(Skating system) 채점방식을 중심으로-

최병일 ( Byung Il Choi ),원영신 ( Young Shin Won ),김숙영 ( Sook Young Kim ) 연세대학교 체육연구소 2004 체육연구논문집 Vol.11 No.1

본 연구는 댄스스포츠 채점방식에 있어 국내에서 실시되고 있는 합산식 채점방식과 영국 및 미국에서 이루어지고 있는 스케이팅 채점방식을 비교·분석해보고자 하였다. 이를 통해 국내 댄스스포츠가 제도적 합리성과 공정성을 확립하고 국제 수준으로 발돋음하고 동시에 양적·질적으로 성장하는데 이론적 기초를 마련하는데 본 연구의 목적이 있다. 본 연구의 목적을 달성하기 위하여 설정한 연구의 문제는 다음과 같다. 첫째, 함산식 채점방식과 스케이팅 채점방식에 차이가 있을 것이다. 둘째, 합산식 채점방식과 스케이팅 채점방식에 따라 경기결과는 차이가 있을 것이다. 연구의 대상은 JATD(일본댄스스포츠교사협회)한국지부에서 주최한 제 2회 서울컵 아시아슈퍼스타 댄스스포츠 대회(2002)의 심사결과를 대상으로 하였다. 연구방법은 경기결과를 비교 분석하는 방법을 채택하였다. 연구결과는 다음과 같이 나타났다. 첫째, 합산식 채점방식과 스케이팅 채점방식에는 많은 차이를 나타냈다. 둘째, 합산식과 스케이팅 채점 방식에 따라 경기 결과에 많은 차이가 나타났다. 셋째, 스케이팅 채점방식과의 비교분석에서 합산식 채점방식의 문제점을 발견할 수 있었다. This study was to diagnose Korea`s dance sport`s marking system and analyzed U.S.A` dancesport`s marking system and compared two system. The purpose of this study was to give theoretical basis of dance sport which can establish the institutional fairness. The subject to analyze home and foreign marking system was the marking result of The Second Seoul Cup Asia Super star Dancesport`s Contest. This study reexamined the result through two marking system. The result of this study could be summarized below through definite analysis: Firstly, 10 cases of lanking change was founded. This shows that home`s marking system can`t control the deviation of each judge. Secondly, 4 cases of tying was founded, which can be differentiated through skating system of U.S.A dance sport. This also affects the total ranking. Thirdly, Each different result of two system affected the last ranking. This shows that home`s Sum-up system can`t control specific judge`s preferential mark. There should be objectively approvable marking standard and certified marking system which can reduce suspicion. In addition, If consistent rules are applied on the basis of this system, the status of dance sport as international sport will be raised.

도로함몰 사고 복구대응을 위한 체크리스트 개발

최병일(Choi, Byoung Il),성주현(Seong, Joo Hyun) 대한토목학회 2018 대한토목학회 학술대회 Vol.2018 No.10