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단계양수시험으로부터 우물수두손실 항을 이용한 단열의 고.저 투수성 평가
김병우,김형수,김건영,고용권,Kim, Byung-Woo,Kim, Hyoung-Soo,Kim, Geon-Young,Koh, Yong-Kwon 한국방사성폐기물학회 2012 방사성폐기물학회지 Vol.10 No.1
Rorabaugh(1953)에 의해 재정리된 단계양수시험 해석해 $s_w=BQ+CQ^p$는 단열암반대수층에서 비선형으로 증가하는 수위강하에 매우 적합하며, 현장에서 관측된 수위강하 값과 추정된 수위강하 사이의 제곱근 평균제곱오차(RMSE) 값이 매우 낮음을 보여주었다. 우물수두손실($CQ^p$)의 $C$ 값은 $3.689{\times}10^{-19}{\sim}5.825{\times}10^{-7}$, $P$ 값은 3.459~8.290의 범위로 산정되었으며, 지표로부터 하부심도로 내려 갈수록 양수율 증가에 따른 수위강하는 매우 크게 나타났다. 단열암반대수층에서의 우물수두손실은 다공질매질에서와 달리 단열특성(단열의 틈, 간격, 상호 연결성)에 의한 영향으로 나타나므로, 우물수두손실의 $C$ 와 $P$ 값은 단열암 반대수층의 난류구간과 고 저 투수성 단열암반의 특성을 해석하는데 매우 중요하다. 그 결과, 우물수두손실 항의 $C$ 와 $P$ 값에 대한 회귀분석 결과로부터 암반대수층의 난류구간과 수리특성의 관계가 파악되었으며, $C$ 와 $P$ 값의 관계가 단열암반대수층의 수리특성 해석에 있어 매우 유용함을 확인할 수 있었다. The equation of the step-drawdown test "$s_w=BQ+CQ^p$" written by Rorabaugh (1953) is suitable for drawdown increased non-linearly in the fractured rocks. It was found that value of root mean square error (RMSE) between observed and calculated drawdowns was very low. The calculated $C$ (well head loss coefficient) and $P$ (well head loss exponent) value of well head losses ($CQ^p$) ranged $3.689{\times}10^{-19}{\sim}5.825{\times}10^{-7}$ and 3.459~8.290, respectively. It appeared that the deeper depth in pumping well the larger drawdowns due to pumping rate increase. The well head loss in the fractured rocks, unlike that in porous media, is affected by properties of fractures (fractures of aperture, spacing, and connection) around pumping well. The $C$ and $P$ value in the well head loss is very important to interpret turbulence interval and properties of high or low permeability of fractured rock. As a result, regression analysis of $C$ and $P$ value in the well head losses identified the relationship of turbulence interval and hydraulic properties. The relationship between $C$ and $P$ value turned out very useful to interpret hydraulic properties of the fractured rocks.
김병우,임청산,최가영,강대인,이희춘,김현도,권기록,Kim, Byung-Woo,Lim, Chung-San,Choi, Ga-Young,Kang, Dae-In,Lee, Hee-Choon,Kim, Hyun-Do,Kwon, Ki-Rok 대한약침학회 2010 Journal of pharmacopuncture Vol.13 No.3
Objectives: This investigation was conducted to evaluate current education status of pharmacopuncture in Korean traditional medicine schools and suggest improvement in the structure of pharmacopuncture education. Methods: Among the eleven Korean traditional medicine schools in the country, six schools participated in the survey. 252 students in fifth and sixth year whom have finished pharmacopuncture studies completed were given questionnaire developed for the purpose and survey results were analyzed. Results : 1. For the question pertaining to the text used for the pharmacopuncture lecture, a significant difference was witnessed suggesting that few schools were not utilizing common textbooks. 2. For the item pertaining to the lecture progression, each school showed significant difference and student satisfaction rate differed vastly between schools. 3. Lecture hours and lecture materials were also significantly different between schools and overall satisfaction rate was low. 4. All of students participated in the survey had high expectation in the clinical applications of pharmacopuncture treatment. Conclusions: Above findings indicate that students at Korean traditional medicine schools throughout the nation have high expectation for pharmacopuncture, but lack of standardized education system and materials and qualified instructors calls for immediate modification in the education of pharmacopuncture studies.
향부자팔물탕(香附子八物湯)이 구속(拘束) Stress 흰쥐의 체중(體重) 및 혈장(血漿) Catecholamines 함량(含量)에 미치는 영향(影響)
김병우,김성욱,Kim, Byung-Woo,Kim, Sung-Ook 대한한방내과학회 2001 大韓韓方內科學會誌 Vol.22 No.4
In order to study the anti-stress effect of hyangbujapalmultang, several measures of stress, including body weight changes, organ weight changes and catecholamine changes. The following result have been obtained: 1. The weight loss of contol group was $28.5{\pm}1.8g$, that of sample group was $20.3{\pm}1.6g$. This differance was statistcally significant. 2.The organ weight(Liver,Spleen,Kidney,Adrenal gland) was the only significant change in the spleen, in sample group comparing to control group. 3. The norepinephrine contents of control group was $695.5{\pm}22.7pg/ml$, that of sample group was $607.4{\pm}21.7pg/ml$. This shows significant difference in sample group comparing to contol group. 4. The epinephrine contents of control group was $212.8{\pm}9.8pg/ml$, that of sample group was $182.6{\pm}8.4pg/ml$. This shows significant differance in sample group comparing to control group. 5. The dopamine contents of control group was $504.5{\pm}31.3$, that of sample group was $463.4{\pm}27.8pg/ml$. This shows the value decreased, but none of it is significant. Based on avove results, it may be conculed that hyangbujapalmultang has anti-stress effects.
Innovation and FDI: Applying Random Parameters Methods to KIS Data
김병우,Kim, Byung-Woo Korea Technology Innovation Society 2010 기술혁신학회지 Vol.13 No.3
"시장규율로서의 FDI" 가설에 따르면 직접투자 자금유입은 국내기업의 혁신활동에 영향을 미치는 시장구조에 변화를 주는 메커니즘으로 작용한다. STEPI의 2008 KIS 데이터에 대한 프로빗 추정결과는 Bertschek(1995)이 분석한 독일기업의 경우와 달리, 한국기업의 제품혁신을 설명하는데 FDI가 설명력이 없는 것으로 나타났다. 이의 근거로 본 연구는 한국 산업의 시장구조가 독일의 경우보다 독점적인데서 기인한다는 추론을 제시하였다. 2005, 2008년 데이터로 구성된 패널데이터 분석의 경우, GLS와 OLS의 행렬가중평균을 추정하는 임의 파라미터 추정법을 적용하였다. 그 결과는 단순 패널프로빗추정 결과와 상당한 차이가 나, 기업간 파라미터에 많은 파라미터 추정치 변화가 있음을 보여준다. 그러나, 패널추정치와 횡단면 추정치간 타 계수의 부호는 달라도 FDI에 대한 결과는 동일한 것으로 나타난다. According to the "FDI-as-market-discipline" hypothesis, inward FDI acts as a mechanism of change in market structure affecting innovative activities of domestic firms. We used panel KIS data for testing this hypothesis. Binary probit estimation shows that, in contrast to the German case of Bertschek (1995), FDI is insignificant in Korean case for explaining product innovation. 1his result maybe comes from the fact that the industries in Korea are more monopolistic or oligopolistic than those of Germany. Using panel data, we tried random parameter estimation using matrix weighted average of GLS and OLS. The result shows different estimates from cross-section outcome and panel estimation with parameter homogeneity, so we can infer large parameter heterogeneity across firms. But, interpretation for FDI variable is similar across panel and cross-section estimation.
RFID를 이용한 U-Museum 시스템 설계 및 구현
김병우,변영철,이동철,Kim, Byung-Woo,Byun, Yung-Cheol,Lee, Dong-Choel 한국정보통신학회 2007 한국정보통신학회논문지 Vol.11 No.3
끊임없이 변화하는 오늘날의 상황에 빗대어 볼 때 전시물의 관리방법은 혁신적인 변화가 이루어 지지 않았다. 이런 문제점을 해결하기 위하여 RFID 시스템을 이용하여 관리자가 실시간으로 전시물을 관리하는데 도움을 줄 수 있는 "RFID를 활용한 U-Museum 시스템"을 설계하고 프로토타입을 개발하였다. 이 시스템은 각 전시물에 900MHz 대역의 수동형 태그를 부착하고 태그를 인식하는 이동형 리더기를 이용하여 관리자는 전시물의 모든 정보를 실시간으로 확인 할 수 있게 함으로써 관리자가 전시물을 관리하는데 효율성을 높이는 것이 목적이다. Despite continuous changes these days, exhibit management methods have not changed that much. To solve th problem, some systems like bar code, color code, IrDA, etc. are being used, but still many problems remain. For the problem-solving, "Exhibt Management System with RFID" is designed and its prototype is developed, which can reduce resources and efforts to manage exhibits through that an operator confirms exhibit information and inputs any damage on the exhibit on the site by using RFID system. The system purposes to improve efficiency of exhibit management by allowing an operator to check all information of exhibitions in real time using a portable reader that recognizes tags of 900MHz band manually attached to each exhibit.
김병우 ( Byung Woo Kim ) 대구사학회 2003 대구사학 Vol.70 No.-
What made Daewongun hold the reins of political power was not based on a new political power group nor on renewed political ideas. It was motivated by the reasons for succession of the throne to the little Crown Prince and for assistance to rule as regent. Because of his situation as kindred of th king, he didn`t take any official rank to practice his political capability. `Jongchinbu`, kindred of the king, was the best public offices and it was legal. Daewongun was on the top of `Jongchinbu` due to the blood relation with the king. He was not in the state of a subject who had to render devoted service to the king. Even king`s mother and the king himself didn`t issue a command to him nor speak to him in an authoritative tone. The officials sincerely carried out what Daewongun decided on political matters. He didn`t need to take any official position which could allow him to practice his political decisions. In a way, therefore, his political status can be said in terms of convention. Daewongun thorughly protected the king`s authority and concentrated his mind on establishment of a strong and absolute monarchy. Accordingly he used to make political decisions and execute them in his own line of policy. Most of his political measures were for people first. The officials in higher political status accepted Daewongun`s rein of political power as the king`s reign. Therefore his management of ruling the nation with the power of an absolute monarchy was possible in the shade of political convention.
김병우 ( Byung Woo Kim ) 한국비교경제학회 2011 비교경제연구 Vol.18 No.2
R&D 지출은 꾸준히 증가하고 있는데 본 연구에서는 슘페테리안 모형을 통해 최적 연구개발 투입을 산출한다. 이 이론모형에서 경제성장은 수직적 기술혁신의 연속에 의해 달성된다. 본 연구에서는 시장균형과 사회최적점을 동시에 고려한다. Aghion and Howitt(2008)의 모형을 사용하여 분권화된 경제가 최적점을 달성하지 못함을 살펴본다. Probit 모형을 통한 분석에 따르면 시장균형은 13 조원(trillion won)에서 달성되지만 최적규모는 56 조원으로 나타난다. 향후 다양한 정책을 통해 4배 정도 투입을 늘릴 필요가 있음을 시사한다. Spending on research in South Korea been growing. In this study, we introduce the socially optimal share of R&D in the Schumpeterian economic growth model, where growth is enhanced by random sequence of vertical innovations. We consider both market equilibrium growth rate and the social optimum. We develop the model of Aghion and Howitt (2008) that find the decentralized economy typically cannot obtain socially optimum. We also examine how far deviates the steady-state growth rate from social optimum in the South Korean economy. According to probit analyses and related calibration results, the estimate of market equilibrium of productivity-adjusted research spending is 13 trillion won. In contrast, that of socially optimal spending is 56 trillion won per year. So, we can conclude that R&D input of South Korea should be increased more than 4 times.
金炳佑(Kim Byung-Woo) 부산경남사학회 2006 역사와 경계 Vol.60 No.-
The present writer analyzed concretely the process and method of grasping political power of DaeWonGun. He didn't rule over absolute government from the beginning, but acquired the political authority and power, and held the political affairs in the process of deciding and realizing policies. Therefore, the purpose of his policies was not a reform, but a ruling. DaeWonGun reorganized the government organs by establishing the Ui-Jeong-Bu system. He expanded the government basis by reconstructing GyeongBokGung. Finally, he grasped and exercised legally the political power by editing 《Dae-Jeon-Hoe-Tong》. Accordingly, we have to understand his political power in connection with his ruling system.
김병우(Kim, Byung Woo) 대한경영교육학회 2013 경영교육저널 Vol.24 No.1·2
최근 금융환경 변화에 따라 가계부채 연착륙문제, 바젤Ⅲ와 관련된 문제, 제반 리스크 관리 문제 등이 주요 현안이 되고 있어 금융기관들은 자금조달 시 이러한 문제들을 우선적으로 고려하여야 한다. 가계부채는 2012년 3/4분기 기준으로 937조원에 이르고 있어 금융시스템은 물론 경제전체의 안정을 위협하는 불안요인이 되고 있다. 또한 은행의 자본 건전성을 강화하기 위한 자기자본비율 규제 강화 조치인 바젤Ⅲ가 금년부터 도입되어 리스크관리 문제가 대두되고 있다. 이와 같은 대내외 금융환경의 변화에 대응하여 자금조달 측면에서 자본시장을 통한 자금조달을 다양화 하고 확대할 필요가 있다. 특히 자산유동화를 이용한 자금조달을 적극 활성화할 필요가 있다. ABS, MBS 뿐만 아니라 국내 금융환경에 적합한 커버드본드의 활성화가 필요하다. 정부에서 입법예고한 바 있는 '금융회사의 커버드본드 발행에 관한 법률' 제정안이 국회를 통과하고 금융기관들이 커버드본드의 발행을 활성화 하면 다음과 같은 효과를 기대할 수 있을 것이다. 첫째, 금융기관의 안정적인 중장기 자금 확보 가 가능해지므로 장기ㆍ고정금리 주택담보대출의 재원을 확보할 수 있다. 둘째, 커버드본드 제도가 정착될 경우 신용도가 높은 장기채권의 공급이 확대되고 이에 따라 다양한 그룹의 투자자를 확보할 수 있을 것으로 예상된다. 셋째, 커버드본드는 발행금융기관의 신용도를 상회하는 신용등급을 획득할 수 있어 상대적으로 저금리로 필요자금을 조달할 수 있다. 넷째, 커버드본드의 활성화는 국내 장기채시장을 확대하고, 장기적 채권기반을 세계적으로 확대하고 다져나가는데 기여할 수 있을 것이다. 다섯째, 안정성과 수익성을 구비한 투자수단이 될 수 있다. 여섯째, 주택금융 소비자를 보호하는데 기여한다. 끝으로, 금융시장의 안정성을 제고할 수 있다. 안전성을 강화한 커버드본드의 활성화는 금융시장의 안정화는 물론 실물부문의 안정적인 성장에도 기여할 수 있을 것이다. The purpose of this study is to vitalize Korean Coverd Bond. according to the recent changes in the financial environment, Financing through asset securitization, should be activated. Coverd Bond is being considered as an alternative to solve the ABS & MBS sluggish. If banks activate the issuance of the Coverd Bond, the following effects can be expected. First, Banks is able to raise the funds for the long-term & Fixed-rate mortgage loans. Second, Banks can secure a various investors. Third, Banks is able to raise the necessary funds to the low interest rate. Fourth, The covered bond When activated, domestic bond market can be expanded. Fifth, Covered bond issuance contributed to the financial consumer protection. Lastly, Activation of the Coverd Bond issuance enhance the stability of the financial markets.