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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.
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.
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.
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.
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.
최병일(Byung Il Choi) 한국국제통상학회 1998 국제통상연구 Vol.3 No.2
This paper deals with the effectiveness of the WTO dispute settlement mechanism from a strategic perspective. On the basis of the analysis of 142 cases brought to the WTO during the time frame of January 1, 1995 to August 31, 1998, the paper concludes that the current WTO dispute settlement mechanism is working fairly well. First of all, most cases went to the panel resolved for the favor of the complaing party. Second, even after the establishment of the panel, in important instances the parties to the dispute continned to consult and reached a mutually acceptable resoultion. The paper suggests that an institutional measure be adopted to provide the developing countries with legal resources so that they can overcome the institutional barriers to fully utilize WTO dispute seulement mechanism.