식도정맥류 출혈의 치료에 대한 비용 대비 효과 - Modified Sugiura Procedure와 내시경적 치료의 비교 -

배병노 ( Byung Noe Bae ),양근호 ( Keun Ho Yang ),김홍용 ( Hong Yong Kim ),김기환 ( Ki Hwan Kim ),한세환 ( Se Hwan Han ),김홍주 ( Hong Joo Kim ),김영덕 ( Young Duck Kim ),신원창 ( Won Chang Shin ) 대한소화기학회 2003 대한소화기학회지 Vol.41 No.4

Background/Aims: According to current studies, the patients treated with modified Sugiura procedure show lower rebleeding rates compared with endoscopic therapy. The aim of this case-control study was to compare modified Sugiura procedure (transabdominal esophageal transection plus esophagogastric devascularization plus splenectomy) with endoscopic therapy for the prevention of recurrent variceal bleeding. Methods: Twenty patients were treated with surgery and 22 patients were treated with endoscopic therapy. We compared their outcomes. Measured main outcomes were mortality, variceal rebleeding, post-interventional changes of liver function, total hospital days, and total hospital charges. Results: Overall mortality in this series was not different. Bleeding related mortality and encephalopathy in the endoscopic therapy group were slightly higher than those in the surgery therapy group. However, these differences were not statistically significant. In patients treated with the modified Sugiura procedure, the liver function was remarkably improved after the operation. Rates of rebleeding (p<0.001), requiring additional endoscopy (p=0.016) and rehospitlalizations (p=0.008) were higher in endoscopic therapy group. In spite of initial lower cost, the overall costs of endoscopic therapy were higher than those of surgery if the costs for the prevention of variceal rebleeding was included. Conclusions: These results indicate that modified Sugiura procedure for esophageal variceal bleeding could improve therapeutic efficiency and quality of life of the patient, especially in the patients with good liver reservoir function. (Korean J Gastroenterol 2003;41:302-308)

A Study on the Interactions of Between Team Task-exception and Diversity Performance Measures, Team-based compensation on the Team Performance : 팀 과업예외성과 각 관점별 성과측정치, 팀기준보상간의 상호작용이 팀 성과에 미치는 영향

Bae Byung-Han(배병한),Park Gi-Seok(박기석),김동훈, 이갑두 한국산업경영학회 2003 한국산업경영학회 발표논문집 Vol.- No.-

Many researchers have argued that success in today"s complex environments will be predicated on organizations becoming fast, flexible, and knowledge-based, and that one method of developing these characteristics is by employing teams. Teams can help that improving the organization"s speed and flexibility of response and the quality of the response. Because of these benefits of team-based organization, many organizations had adopted and have tried to adopt teams. But we had a question that whether teams are archived improving the team performance. If not, we have detected this reasons in performance measurement and compensation systems. Because, performance measurement and compensation systems can play an important role in teams success. Therefore, the purpose of this study is to confirm whether the interaction between team task exception and diversity performance measures, the weight given team performance in an individual"s compensation makes a significant influence on the team performance. We tested these questions using multiple regression analysis. According to the results, the interaction between task exception and three perspectives measures(exception for learning and growth perspectives) was significant. And the interaction between team task exception and the weight given team performance in an individual"s compensation was not significant.

고성능 단상 선로응동형 DVR(Dynamic Voltage Restorer)

裵炳烈(Byung-Yeol Bae),李東根(Dong-Geun Lee),韓炳文(Han-Byung Moon),廓魯洪(No-Hong Kwak),朴祥濠(Sang-Ho Park) 대한전기학회 2007 전기학회논문지 Vol.56 No.11

This paper describes the development of a high-performance single-phase line-interactive Dynamic voltage Restorer, which is composed of an H-bridge inverter and super-capacitors. The operational feasibility was verified through computer simulations with PSCAD/EMTDC software, and experimental works with 3㎸A prototype. The developed system can compensates the input voltage sag and interruption within 2㎳, in which the maximum allowable duration of voltage interruption is 1.5 seconds. It can be effectively used to compensate the voltage interruption in the sensitive load, such as computer, communication equipment, automation equipment, and medical equipment. The developed system has a simple structure to be easily implemented with commercially available components and to be highly reliable in operation.

제조원가명세서의 공시가 타인자본비용에 미치는 영향

배병한 ( Byung Han Bae ),한은정 ( Eun Jeong Han ),최철환 ( Cheol Hwan Choi ),노용성 ( Yong Seong Noh ),신지현 ( Ji Hyun Shin ),이란 ( Lan Li ) 한국세무회계학회 2013 세무회계연구 Vol.0 No.37

2005년부터 제조원가명세서는 강제공시 항목에서 자발적 공시항목으로 변경되었다. 제조 원가명세서가 공시되면 기업의 원가정보가 경쟁업체게 유출되어 원가경쟁력이 저하되는 부정적 측면이 존재함에도 불구하고 제조원가명세서의 자발적 공시하는 기업은 특수한 경제적 유인이나 기업특성이 존재할 것이라 판단하였다. 이에 제조원가명세서 공시기업의 특성에 관한 선행연구와 자발적 공시를 포함한 자본비용의 영향요인에 관한 선행연구의 결과를 바탕으로, 자본비용이 높게 책정될 가능성이 높은 기업에서 제조원가명세서 공시를 통해 자본 비용을 감소시키는지를 실증분석 하였다. 2006년부터 2010년까지 한국거래소에 상장된 코스피와 코스닥 기업을 대상으로 분석을 수행한 결과는 다음과 같다. 첫째, 차이분석에서 제조원가명세서를 자발적으로 공시하는 기업은 미공시기업에 비해 타인자본비용이 낮게 나타났다. 둘째, 실증분석에서 제조원가명세서를 자발적으로 공시하는 기업에서는 타인자본비용이 낮게 책정되는 것으로 나타났다. 이상의 연구결과를 통해 자본투자자에게 투자위험이 높게 평가될 수 있는 기업에서는 제조원가명세서를 자발적으로 공시하여 기업과 자본투자자 간의 정보불균형 완화를 통해 자본 비용을 감소시키려는 유인이 존재하고 있음을 발견하였다. This study investigates how voluntary disclosure of the schedule of manufacturing cost is associated with cost of debt. The samples are consisted of 2,310 non-banking firm-years with december fiscal year listed on KRX from 2006 to 2010. The data of disclosure of the schedule of manufacturing cost, other firm-specific data is collected from Kis-Value Ⅲ and Beta is collected from Fn-Guide. The empirical results are as follows. First, there are significant differences in firm characteristics between the firms that voluntary disclose schedule of manufacturing cost and the firms that do not disclose schedule of manufacturing cost. Voluntary disclosing firms have lower cost of debt than the firms that do not disclose schedule of manufacturing cost. Second, disclosing schedule of manufacturing cost decreases cost of debt. Our findings suggest that the firms to have risk of taking higher cost of debt may try to decrease cost of debt through voluntary disclosure schedule of manufacturing cost.

유도발전기식 풍력발전시스템의 STATCOM 적용 타당성 분석

배병열(Bae, Byung-Yeol),한병문(Han, Byung-Moon) 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.11

The wind power is known as the most promising future energy source to obtain the electricity. Induction generator is a simple energy conversion wit in the wind power generation system but it consumes the reactive power from the interconnected power system. Switched capacitor banks are normally used to compensate the reactive power, which bring about the transient overvoltage. This paper proposes a method for compensating the reactive power with STATCOM. A detail simulation model for analyzing the interaction between the wind power system and the commercial power system was developed using EMTDC software. The developed simulation model can be effectively utilized to plan the reactive power compensation for newly designed wind power system.

외란에 강인한 새로운 구조의 3상 Phase-Locked Loop

배병열(Byung-Yeol Bae),조윤호(Yun-Ho Cho),박용희(Yong-Hee Park),한병문(Byung-Moon Han) 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-

PLL(Phase-Locked Loop)은 전력품질보상과 전력조류제어용으로 사용되는 전력변환기에서 매우 중요한 요소이다. 이 논문에서는 ALC(Adaptive Linear Combiner)와 PI제어기로 구성된 새로운 3상 PLL이 제안되었다. 동작원리를 이론적으로 도출 및 분석하였고 성능평가를 위해 Matlab을 이용한 시뮬레이션과 TMS320VC33 보드를 이용하여 실험을 실시하였다. 제안하는 3상 PLL은 전압강하, 고조파, 위상각 점프, 그리고 주파수 변동과 같은 전압외란조건에서도 우수한 성능을 보인다.

능동전력필터의 정밀 기준신호 발생기

배병열(Byung-Yeol Bae),전영수(Young-Soo Jon),한병문(Byung-Moon Han),소용철(Yong-Choel Soh) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-

The performance of an active power filter(APF) depends on the inverter characteristic, the control method, and the accuracy of reference signal generator. The accuracy of reference generator is the most critical item to determine the performance of active power filter. This paper introduces a novel reference signal generator composed of improved adaptive predictive filter. The performance of proposed reference signal generator was first verified through a simulation with MATLAB. Furthermore, the application of feasibility was evaluated through experimenting with a single-phase APF prototype based on the proposed reference generator, which was implemented using the TMS320C31 floating-point signal processor. Both simulations and experimental results confirm that our reference signal generator can be used successfully in practical active power filters.

멀티미디어를 활용한 코스웨어의 개발과 학습효과에 관한 연구

배병한(Bae, Byung-han),전경진(Jeon, Kyung-jin) 한국경영교육학회 1999 경영교육연구 Vol.18 No.-

44 식도 정맥류 출혈환자의 치료에 대한 비용 대비 효과

배병노 ( Byung Noe Bae ),양근호 ( Geun Ho Yang ),김기환 ( Gi Whan Kim ),한세환 ( Se Whan Han ),김홍주 ( Hong Ju Kim ),김영덕 ( Young Duk Kim ),김홍용 ( Hong Yong Kim ) 대한소화기학회 2002 대한소화기학회 추계학술대회 Vol.2002 No.-

Calculation of Bulk and Solution Electrical Conductivity of Soil Using Time Domain Reflectometry Measurements

배병술,최우정,한광현,한경화,류순호,노희명,Bae, Byung-Sul,Choi, Woo-Jung,Han, Gwang-Hyun,Han, Kyung-Hwa,Yoo, Sun-Ho,Ro, Hee-Myong Korean Society of Soil Science and Fertilizer 2003 한국토양비료학회지 Vol.36 No.1

Time domain reflectometry (TDR) is a newly developed method for measuring simultaneously solute concentrations and volumetric water content of soil. Bulk electrical conductivity ($EC_a$) of soil is obtained from TDR signal using several equations proposed, and electrical conductivity of soil solution ($EC_w$) can be calculated using the linear relationship $EC_a=EC_w\theta(a\theta+b)+EC_s$ between $EC_a$ and $EC_w$ at constant soil water content. The objectives of this study were to evaluate $EC_a$ proposed by several workers and to obtain the empirical constants (a, b, and $EC_s$) for $EC_w$ of the soils from A, Bl, and B2 horizon of an agricultural field (Coarse loamy, Fluvaquentic Eutrudepts). The $EC_a$ proposed by Yanuka et al. responded most sensitively to the KCl solute concentrations. The empirical constants of a, b, and $EC_s$ for $EC_w$ were -0.249, 1.358, and 0.054 for A horizon, -2.518, 2.708, and 0.097 for Bl horizon, and 2.490, -0.250, and 0.103 for B2 horizon, respectively. Therefore, the results of this study showed that Yanuka et al. equation was most useful one in determining $EC_a$, from TDR signal for agricultural soil with low salinity and that the empirical constants for the calculation of $EC_w$, from $EC_a$ can be obtained through a simple calibration experiment. Time Domain Reflectometry(TDR)은 토양의 순분함량과 전기전도도를 측정할 수 있는 비파괴적인 방법이다. 초기 전자파에 대한 TDR 반향파의 감쇄정도를 이용하여 토양의 총전기전도도($EC_a$)를 직접 계산할 수 있는 다양한 식들이 제안된 바 있다. 또한, $EC_a$로부터 보다 실질적인 의미가 있는 토양 용액의 전기전도도($EC_w$)를 계산하기 위해서는 일정 토양 수분 함량에서 $EC_a$와 $EC_w$가 갖는 직선관계식[$EC_a=EC_w{\theta}(a{\theta}+b)+EC_s$]이 이용된다. 따라서 본 연구에서는 TDR 신호를 이용하여 $EC_a$를 계산할 수 있는 다양한 식을 비교하여 가장 적합한 식을 제안하고, 농경지 토양(강서통, A, B1, B2 층위)을 대상으로 $EC_a$로부터 $EC_w를 계산할 때 필요한 실험상수(a, b, $EC_s$)를 구하고자 하였다. $EC_a$는 KCl 농도가 증가함에 따라 직선적으로 증가하였고, 특히 Yanuka 등이 제안한 식으로 계산한 $EC_a$가 용질 농도에 가장 민감하게 반응하였다. 직선회귀식을 이용하여 $EC_a$와 $EC_w$의 상관관계식의 실험 상수 (a, b, $EC_s$)를 구한 결과, 각각 -0.249, 1.358, 0.054(A층), -2.518, 2.708, 0.097(B1층), 2.490, -0.250, 0.103 (B2층)으로 조사되었다. 따라서 이상의 연구 결과는 TDR 신호를 이용해서 염농도가 낮은 일반 농경지 토양의 $EC_a$를 계산할 때 Yanuka 등이 제안한 식을 적용하는 것이 바람직하며, $EC_w$를 계산할 때 이용되는 $EC_w$-$EC_a$ 상관관계식의 상수는 간단한 실험실내 보정 시험을 통해 구할 수 있음을 보여준다.