분과 2 : 고등학교 학생의 대수 (代數) 문제 해결 : 전략과 오류 분석

이상원,전평국 ( Sang Won Lee,Pyung Kook Jeon ) 한국수학교육학회 1994 수학교육 프로시딩 Vol.2 No.-

농촌지역 주민의 고혈압 치료순응도와 관련요인

이상원,천병렬,예민해,강윤식,김건엽,이영숙,박기수,손재희,오희숙,안문영,임부돌,감신,Lee, Sang-Won,Chun, Byung-Yeol,Yeh, Min-Hae,Kang, Yun-Sik,Kim, Keon-Yeop,Lee, Young-Sook,Park, Ki-Soo,Son, Jae-Hee,Oh, Hee-Sook,Ahn, Moon-Young,Lim, Pu-D 대한예방의학회 2000 예방의학회지 Vol.33 No.2

Objective : The purpose of this study was to examine the therapeutic compliance and its related factors in the rural hypertensives. Method : A questionnaire survey and blood pressure measurement were performed to 3,876 residents of a rural area, and 660 hypertensives were selected as subjects of study. The study employed a hypothetical model which was composed of constructs from the health belief model and KAP model. The analysis techniques employed included contingency table analysis and structural equation modeling. Result : The proportion of those who were compliant to the treatment of hypertension was 44.2% of subjects. As the result of structural equation modeling, when patients had more favorable attitude toward treatment, higher perceived benefit, or lower perceived barriers to treatment, the therapeutic compliance was significantly higher(T>2.0). When patients had more knowledge about hypertension, or higher perceived severity of hypertension, the attitude toward the treatment of hypertension was more favorable significantly(T>2.0). And when patients had the support for treatment from family or neighbor, the attitude toward treatment was more favorable(T>2.0). When patients had experience of health education, they had more knowledge, higher perceived susceptibility of complication, perceived severity for hypertension, and perceived benefit of treatment, compare to patients without health education(T>2.0). Conclusion : In consideration of above findings, in order to improve the therapeutic compliance in the rural hypertensives, it would be necessary to change attitude, perception, knowledge about hypertension and its treatment, by various methods such as effective health education and programs for maintaining the supportive environment for hypertension treatment.

희토류 금속이온 (Ln(III))과 Acetamide 사이의 상호작용에 대한 연구

이상원,유정아,윤창주,전유혁,최영상,Sang-Won Lee,Jeonga Yu,Chang-Ju Yoon,Yoo-Hyek Jun,Young-Sang Choi 대한화학회 1992 대한화학회지 Vol.36 No.2

아세트아미드(AA)의 CO기와 희토류 금속이온(Ln(II))을 포함하는 몇 가지 lanthanide shift reagent(LSR) 사이의 상호작용을 이해하기 위하여 AA의 $2{\nu}_{C=0}$ + amide III 조합띠를 $15^{\circ}$ ${\sim} 45^{\circ}C$에서 조사하였다. 묽은 $CCl_4$ 용액속에서 하나의 AA가 사용된 LSR에 배위되어 1 : 1 AA-LSR 복합체를 이루며, Ln(Ⅲ)이온에 대한 AA의 배위 위치는 카르보닐의 산소임을 알았다. 온도 및 농도에 따른 이 조합띠의 변화로부터 Ln(III)${\cdot}$O=C 결합에 대한 여러가지 열역학적 함수들을 구했다. Eu$(dpm)_3$, Yb$(dpm)_3$ 및 Pr$(dpm)_3$에 대한 AA의 결합의 세기를 나타내는 ${\Delta}H^{\circ}$는 각각 -39.1, -28.4 및 -25.5kJ/mol이다. 이들 값을 비교해보면 AA 분자가 배위될 때 중심금속이온의 ionic potential 효과보다는 이미 배위되어 있는 커다란 dpm 분자에 의한 입체장애효과가 더 큼을 알 수 있다. The $2{\nu}_{C=0}$ + amide III combination band spectrum of acetamide (AA) was obtained in very dilute solutions of AA+lanthanide shift reagents (LSR) in carbon tetrachloride over the range of $15^{\circ}$ to $45^{\circ}C$. It was found that only 1 : 1 AA-LSR complex is formed by the interaction between carbonyl oxygen of AA and central metal ion(Ln(Ⅲ)) in LSR. The thermodynamic parameters for Ln(III)${\cdot}$O=C bond were determined by computer analysis of concentration and temperature dependent spectra. ${\Delta}H^{\circ}$ for the coordination of AA to Eu$(dpm)_3$, Yb$(dpm)_3$, and Pr$(dpm)_3$ have been found to be -39.1, -28.4, and -25.5 kJ/mol, respectively. It has shown that this type of ion-dipole interaction is more than twice stronger compared to the dipole-dipole interaction in the amide linkage, and largely depending on the steric hindrence effect by the bulky dpm groups around central metal ion (Ln(III)) rather than the ionic potential effect of central metal ion itself.

Aspergillus awamori와 Zymomonas mobilis로 구성된 혼합고정화 배양계의 에탄올 생산에 미치는 Neupectin-L의 영향

이상원,조용운,김홍출,박석규,성낙계 ( Sang Won Lee,Yong Un Cho,Hong Chul Kim,Seok Kyu Park,Nack Kie Sung ) 한국응용생명화학회 1997 Applied Biological Chemistry (Appl Biol Chem) Vol.40 No.2

In order to reduce energy input in direct ethanol production from raw starch by co-immobilized Aspergillus awamori(A) and Zymomonas mobilis(Z), A-Z 36 culture system which was changed to anaerobic after 36 h of aerobic fermentation without sterilization was investigated. This immobilized cell system can not be carried out under unsterile conditions because of growth of microbial contaminants from original medium. Among some food additives such as sorbic acid, benzoic acid, dehydroacetic acid, p-hydroxybenzoic acid, Vantocil IB and Neupectin-L, Vantocil IB and Neupectin-L were a potent antibacterial agent in A-Z 36 culture cell system and were not affected in hydrolysis of substrate as compared with the case of control. Ethanol yield(6.9 g/ℓ) in system of addition of 0.1% Neupectin-L was slightly higher than that in control(6.4 g/ℓ). When 2% starch was fed five times in fed-batch culture with 0.1% Neupectin-L, ethanol yield and productivity were 34 g/ℓ and 2.0 g/ℓ/day, respectively.

점검상식 - 특별피난계단의 방.배연 설비

이상원,Lee, Sang-Won 한국화재보험협회 1987 防災와 保險 Vol.34 No.-

XML 포함질의를 위한 확장형 인덱스

이상원,Lee, Sang-Won 한국정보처리학회 2004 정보처리학회논문지D Vol.11 No.2

XML 문서에 대한 포함질의는 XML의 핵심 질의 중의 하나이다. 따라서, XML 데이터를 지원하는 DBMS에서 이런 유형의 질의를 효과적으로 처리하는 것은 매우 중요한 문제이다. 최근 들어, 객체관계형 DBMS에 XML 데이터를 저장하려는 많은 노력들이 시도되고 있다. 본 논문에서는 객체관계형 DBMS에 BLOB 형태로 저장된 XML 데이터를 대상으로 포함질의를 효과적으로 처리하기 위한 확장형 인덱스를 제시한다. 즉, 객체관계형 DBMS의 확장성을 이용해서 포함질의 처리를 위한 효과적으로 처리하는 확장형 인덱스의 구현과 이 인덱스의 사용 방법을 기술한다. Containment queries for XML documents is one of the most important query types, and thus the efficient support for this type of query is crucial for XML databases. Recently, object-relational database management system (ORDBMS) vendors try to store and retrieve XML data in their products. In this paper, we propose an extensible index to support containment queries over the XML data stored as BLOB type in ORDBMSs. That is, we describe how to implement the index using the extensibility feature of an ORDBMS, and describe its usage.

가격괴리율과 추적오차에 의한 ESG ETF의 성과분석

이상원(Lee, Sang-Won) 한국경영교육학회 2020 경영교육연구 Vol.35 No.6

[연구목적] 본 연구에서는 사회적책임투자와 관련하여 ESG 투자의 성과를 알아보기 위해 국내 상장된 ESG ETF를 대상으로 성과를 실증분석하였으며 이를 통해 국내 ESG ETF의 성과와 특성을 알아보고 이와 관련된 시사점을 제공하였다. [연구방법] 본 연구는 국내 상장된 ESG ETF의 가격괴리율과 추적오차 분석을 통해 ESG ETF의 성과를 분석한다. 또한, 코로나 19 발생 이전과 발생 이후의 기간에서의 ESG ETF의 성과에 대하여 비교 분석한다. [연구결과] ESG ETF가 기초지수보다 평균수익률은 높았고, 표준편차는 낮은 것으로 나타났다. 가격괴리율 평균은 유의한 음(-)의 값을 보였고 할인 현상이 할증 현상보다 더 많이 발생하였으며, 코로나 19 발생 이후 기간에서 가격괴리율의 절대치가 더 크게 나타났다. 추적오차 분석에서 평균 추적오차의 절대치는 상당히 작았고 통계적으로 유의한 것으로 나타났다. 또한, 회귀분석에 의한 추적오차 분석에서 ESG ETF의 수익률이 기초지수의 수익률을 잘 추적하지 못하는 것으로 나타났으나, 그 차이는 매우 작았으며 이러한 차이는 코로나 19 발생 이후 기간에서 더 크게 나타났다. [연구의 시사점] 국내 ESG ETF는 할인현상이 더 많이 발생하였고 가격괴리율은 0과 동일하지 않아 효율적이지 못한 것으로 판단된다. 추적오차는 작았지만, ESG ETF의 수익률과 기초지수의 수익률간에는 유의적인 차이가 존재하여 ESG ETF가 기초지수를 효율적으로 추적하지 못한다고 평가할 수 있다. 이를 통해 국내 ESG ETF 투자에 의해 초과성과를 얻기에는 다소 한계가 있음을 유추할 수 있었고, 이러한 결과는 ESG ETF 투자와 관련 규제 입안 등의 자료로 활용될 수 있을 것으로 기대된다. [Purpose] This study empirically analyzes the performance of ESG ETFs in Korea to find out the performance of ESG investment in relation to social responsible investment. Through this, the performance and characteristics of ESG ETFs were investigated and implications were provided. [Methodology] This study reviews the performance of ESG ETFs through price disparate ratio and tracking error of ESG ETFs in Korea. In addition, the performance of ESG ETFs in the period before and after the outbreak of Corona 19 is compared and analyzed. [Findings] ESG ETF showed higher average rate of return and lower standard deviation than the underlying index. The average price disparate ratio was a significant negative value, and the discount occurred more than the premium. And the absolute value was larger in the period after Corona 19. In the tracking error analysis, the absolute value of the average tracking error was significantly small and statistically significant. The analysis of the tracking error by regression analysis showed that the return of ESG ETF did not track the return of the underlying index well, but the difference was very small and this difference was larger in the period after Corona 19. [Implications] This study can be inferred that there is a limit to the excess performance by ESG ETF investment These results are expected to be used as data such as ESG ETF investment and regulation drafting.

울산-언양 지역 화강암체 주변의 퇴적암류에 대한 접촉변성작용에 관한 연구

이상원,이준동,김정진,Lee, Sang Won,Lee, Joon Dong,Kim, Jeong Jin 대한자원환경지질학회 1992 자원환경지질 Vol.25 No.4

The study area consists of sedimentary and volcanic rocks of Gyeongsang Supergroup, granitoid intrusives, and hornfelses around the granitoids. Granitoid intrusives occur in small stocks in Nijeon-ri, Uggogri, and Yul-ri area. The masses in Nijeon-ri and Uggog-ri are hornblende-biotite granodiorite, biotite granodiorite respectively, and Yul-ri mass is biotite granite. Surrounding sediments of these masses were thermally metamorphosed and contact aureoles were formed. The studied granitoids are considered to be formed by sequential crystallization-differentiation from calc-alkalic granitoid magma. Metamorphic minerals occurring in contact aureole are chlorite, actinolite, epidote, and biotite. Diopside and hornblende are observed in small amount in some lithology around contact aureole. The lithology of contact aureole is predominantly silty and sandy, and characteristic metamorphic minerals were poorly developed because of low temperature metamorphism. Low temperature in contact aureole could be deduced from the facts that the intrusions were small size, shallow depth, low temperature, and rare movement of volatiles from magma.

할인점 설계사례(E-MART분당점)

이상원,정진호,Lee, Sang-Won,Jeong, Jin-Ho 한국설비기술협회 1996 설비 : 공조ㆍ냉동ㆍ위생 Vol.13 No.10

"동의보감"과 "제중신편"에 기재된 처방중 수치대황의 종류와 효능에 대한 고찰

이상원,김현정,김진숙,Lee, Sang-Won,Kim, Hyeun-Jeong,Kim, Jin-Sook 한국한의학연구원 2003 한국한의학연구원논문집 Vol.9 No.1

The Effects and processing methods of Rhei Rhizoma from Donguibogam and Chejungsinpyeon were studied, Through the study, we found 21 kinds of processing method of Rhei Rhizoma in Donguibogam and Chejungsinpyeon, Processing methods used in Donguibogam and Chejungsinpyeon were effective from reducing side effects of Rhei Rhizoma, and were safe in clinical application, the aims of processing methods of Rhie Rhizoma were safer application by reducing poisonous character, and increase the range of clinical application by useing 21 kinds of processing methods.