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폐옹(肺癰)으로 진단된 기관지확장증 환자의 위경탕(葦莖湯) 투여 1례
김봉석,오중한,김동우,최빈혜,허진일,손대용,김대준,변준석,임희용,Kim, Bong-Suk,Oh, Jung-Han,Kim, Dong-Woo,Choi, Bin-Hye,Hur, Jin-Il,Son, Dae-Yong,Kim, Dae-Joon,Byun, Joon-Seok,Lim, Hee-Yong 대한한방내과학회 2005 大韓韓方內科學會誌 Vol.26 No.3
A 69 year-old female patient with Bronchiectasis was treated. She was suffering from cough, sputum, fever, sweating, chills and general weakness. Her symptoms were diagnosed as Pe-Ong(肺癰), and she was administered Wikyung-Tang(葦莖湯). After taking Wikyung-Tang(葦莖湯) her symptoms improved. Results suggest that Wikyung-Tang(葦莖湯) is an effective treatment fer Bronchiectasis. Though, results support a role for oriental medical treatment for lung disease, further research into the effectiveness of oriental medical treatments for various lung disease is needed.
Al Doped ZnO 박막의 열처리에 따른 태양전지용 투명전도막 특성
김봉석,김응권,김용성,Kim, Bong-Seok,Kim, Eung-Kwon,Kim, Young-Sung 한국세라믹학회 2006 한국세라믹학회지 Vol.43 No.9
The annealing temperature effect of transparent conducting oxide film grown on glass substrate for solar cell application was studied in this paper. Using pulsed DC magnetron sputtering with 1 at% Al-doped ZnO target, TCO films were deposited on coming 7059 glass at room temperature. Al:ZnO thin films were annealed at 200, 400, Al $600^{\circ}C$ for 10 min and annealing resulted in lower biaxial compressive stress of about 1GPa and increased average crystallite size in all films. The as-grown film shows the resistivity of $1{\times}10^{-2}{\Omega}{\cdot}cm$ and transmittance under 80%, whereas the electrical and optical properties of film annealed at $400^{\circ}C$ are enhanced up to $5{\times}10^{-4}{\Omega}{\cdot}cm$ and 85%, respectively.
해상전 워게임모델의 교전 피해평가 수준 및 산정방법론 - 함정 피해평가를 중심으로 -
김봉석,최봉완,김종수,Kim, Bong Seok,Choi, Bong Wan,Kim, Chong Su 한국시스템엔지니어링학회 2021 시스템엔지니어링학술지 Vol.17 No.1
Wargame is a simulated military operation with certain rules, specifications, and procedures, in which soldiers can virtually and indirectly experience the war. The ROK Navy operates the Cheonghae model, a training wargame model for helping commanders and staff master the procedures for conducting the war. It is important for commanders, staff and analysts to know whether a warship can perform its missions and how long it can last during a war. In existing model, the Cheonghae, the probability of kill of a warship is calculated simply considering the number of tonnage without any stochastic elements, and the warship's mission availability is also determined based on predetermined values. With this model, it is difficult to get a value of the probability of kill that makes sense. In this dissertation, the author has developed a probabilistic model in which the warship vulnerability data of ROK-JMEM can be used. A conceptual model and methodology that can evaluate the mission performance of personnel, equipment, and supplies has been proposed. This can be expanded to a comprehensive assessment of wartime warship loss rates by integrating damage rates for personnel, equipment, and supplies in wartime.
FBAR용 ZnO 박막의 열처리 온도변화에 따른 미세조직 및 전기적 특성
김봉석,강영훈,조유혁,김응권,이종주,김용성,Kim, Bong-Seok,Kang, Young-Hun,Cho, Yu-Hyuk,Kim, Eung-Kwon,Lee, Jong-Joo,Kim, Young-Sung 한국세라믹학회 2006 한국세라믹학회지 Vol.43 No.1
In this paper, we prepared high-quality ZnO thin films for application of FBAR (Film Bulk Acoustic Resonator) by using pulse DC magnetron sputtering. To prevent the formation of low dielectric layers between metal and piezoelectric layer, Ru film of 30 nm thickness was used as a buffer layer. In addition we investigated the influence of annealing condition with various temperatures. As the annealing temperature increased, the crystalline orientation with the preference of (002) c-axis and resistance properties improved. The single resonator which was fabricated at $500^{\circ}C$ exhibited the resonance frequency and the return loss 0.99 GHz and 15 dB, respectively. This work demonstrates potential feasibility for the use of thin film Ru buffer layers and the optimization of annealing condition.
경두개 도플러 초음파를 이용한 현훈 환자의 뇌혈관 혈류 측정에 관한 임상적 연구 (중대뇌동맥, 추골동맥 및 기저동맥을 중심으로)
김봉석,오중한,김동우,최빈혜,장우석,서영호,손대용,변준석,임회용,Kim, Bong-Suk,Oh, Jung-Han,Kim, Dong-Woo,Choi, Bin-Hye,Jang, Woo-Seok,Seo, Young-Ho,Son, Dae-Yong,Byun, Joon-Seok,Lim, Hee-Yong 대한한방내과학회 2004 大韓韓方內科學會誌 Vol.25 No.3
Objectives : This study was designed to research whether transcranial doppler ultrasound(TCD) can yield a suitable diagnosis or prognosis for dizziness. Methods : To evaluate the blood flow, we measured the mean velocity(Vm), peak systolic velocity(Vs) and pulsatility index(PI) of the middle cerebral artery(MCA), vertebral artery(VA) and basilar artery(BA) in 54 dizziness patients and 44 normal subjects. To investigate the difference between dizziness patients and normal subjects, we selected 54 dizziness patients diagnosed normal by Brain MRI, and 44 normal subjects who did not have any symptoms of hyperlipemia, hypertension, diabetes melitus, heart disease, or smoking, diagnosed normal by Brain MRI. 30-69 year olds were divided into 30-49 year olds, 50-59 year olds and 60-69 year olds. Results : In normal subjects, there was a significantly higher Vm, Vs in the MCA and BA, and Vs in the VA of female subjects, and there was a significant difference in PI in the MCA and BA increasing with age. In comparison with normal subjects, dizziness patients had a significantly lower Vm in the BA. Male dizziness patients had significantly lower PI in the MCA. 30-49 year olds had significantly lower Vm in the BA. Conclusions : The significant difference in blood flow velocities in the BA between dizziness patients and normal subjects suggests that dizziness is related to blocking of blood flow in the BA and that diagnosis and prognosis can be made through TCD. More detailed study of dizziness patients will be needed.
이진탕(二陳湯) 가미방(加味方) 투여 후 호전된 기능성 소화불량 환자 3례에 대한 증례보고
김봉석,임희용,김동우,최빈혜,허진일,김대준,조종관,변준석,오중한,Kim, Bong-Suk,Lim, Hee-Yong,Kim, Dong-Woo,Choi, Bin-Hye,Hur, Jin-Il,Kim, Dae-Joon,Cho, Chong-Kwan,Byun, Joon-Seok,Oh, Jung-Han 대한한방내과학회 2005 大韓韓方內科學會誌 Vol.26 No.3
It is well known that functional dyspepsia is one of the most common diseases. Functional dyspepsia, as defined by Rome I and II criteria, is a known and important gastrointestinal disorder. Symptoms of functional dyspepsia are postprandial fullness, postprandial discomfort, epigastric bloating, epigastric lump sensation, early satiety, nausea, vomiting, regurgitation, eruction, hunger pain, postprandial epigastric pain, heartburn, soreness and anorexia. Treatment of these symptoms are recorded in the Donguibogam(東醫寶鑑). This study is a comparative study between initial medical examination and end of medical treatment with LJTG mentioned in the Donguibogam. After treatment with LJTG, patients showed improvement in all symptoms associated with functional dyspepsia, including general condition. The results of this study suggest that LJTG is an effective treatment for functional dyspepsia.
전기 임피던스 단층촬영 기법에서 효과적인 초기치 설정을 통한 상 경계 추정
김봉석,김신,김경연,Kim, Bong-Seok,Kim, Sin,Kim, Kyung-Youn 한국전기전자학회 2012 전기전자학회논문지 Vol.16 No.3
상 경계 추정 문제에서는 초기치에 따라 그 추정성능이 달라질 수 있다. 하지만 실제의 유동 공정에서는 초기치 설정을 위한 기포의 개수와 개략적인 위치 정보를 알 수가 없기 때문에, 초기치 설정 문제는 더욱 중요하다. 따라서 이 논문에서는 상 경계 추정을 위한 초기치 설정을 위해 우선 차이(difference) 복원 방법을 사용하여 미지의 저항률 분포를 추정하고, 중간모드(intermodes) 방법을 사용하여 적응 문턱치를 자동으로 계산하였으며, 이를 바탕으로 기포의 개수와 초기 위치를 결정하였다. 이로써 잡음이 존재하는 경우에도 기포의 상 경계를 잘 추정할 수 있는 방법을 개발하였다. 이에 몇 가지 시나리오를 설정하고 모의실험을 통해 제안한 방법의 상 경계 추정성능을 평가하였다. In the phase boundary estimation problem, the estimation performance depends on the initial guess. However, there is no information on the number of bubbles and those positions for the initial guess in real flows. Therefore, it is very important to set appropriate initial guesses from prior information. In this paper, in order to set initial guesses for estimating the phase boundaries in two-phase flows, first, unknown resistivity distribution was estimated using the difference reconstruction method. After that, an adaptive threshold value was automatically computed using intermodes method. Based on this value, the number of bubbles and the initial position were determined. The numerical experiments have been performed to evaluate the estimation performance of the proposed method.
대승기탕(大承氣湯) 투여 후 편폐(便閉 ), 번조(煩燥), 불면(不眠)호전된 중풍 환자 치험 1례
김봉석,임희용,최빈혜,김대준,전연이,조종관,변준석,오중한,Kim, Bong-Suk,Lim, Hee-Yong,Kim, Dong-Woo,Choi, Bin-Hye,Kim, Dae-Joon,Jun, Yeon-I,Cho, Chong-Kwan,Byun, Joon-Seok,Oh, Jung-Han 대한한방내과학회 2004 大韓韓方內科學會誌 Vol.25 No.2
In the early stage of stroke, the symptoms of constipation, chest discomfort and insomnia may appear in addition to the general symptoms such as specific limb weakness, dysphasia, headache, dizziness etc.. We administered Daeseungkitang(大承氣湯) to the patient diagnosed with cerebral infarction by MRI. He clearly displayed the usual syndromes of stroke(實證), endogenous wind stirring in the liver(肝風內動) and acceleration of upper chest functions(上焦火盛), ascertainned by Oriental Medical methods. After treatment with Daeseungkitang(大承氣湯), the constipation, chest discomfort and insomnia improved along with improvement of general symptoms of stroke.
Li<sub>2</sub>CO<sub>3</sub>:ZnO를 이용하여 제조한 FBAR의 제작 및 열처리에 따른 구조적, 전기적 특성
김봉석,김응권,이태용,오수영,송준태,Kim, Bong-Seok,Kim, Eung-Kwon,Lee, Tae-Yong,Oh, Su-Young,Song, Joon-Tae 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.2
In this study, we fabricated FBAR(film bulk acoustic resonator) by using $Li_{2}CO_{3}:ZnO$ as a function of annealing temperature and concentrated on effect of frequency characteristic of FBAR. The results show that the annealing affects resistivity and crystallity. The optimum properties were observed for film annealed at $500^{\circ}C$. The resistivity was $1.5{\times}10^{11}\;{\Omega}{\cdot}cm$ and the roughness was 21.10 nm. And the return loss is improved from -24.9 at $300^{\circ}C$ to -29.8 at $500^{\circ}C$ without the resonant frequency change. We finally confirmed the improvement on the frequency characteristics of FBAR device by annealing process at the optimized condition.