천연가스 가격의 연료비 연동 필요성 ( A Background for Import-cost Linked Gas Pricing )

박연홍,남궁윤 한국에너지학회 1998 한국에너지공학회 학술발표회 Vol.1998 No.-

안전문화운동 전개방안

박연홍,Park, Yeon-Hong 한국건설안전협회 1996 建設 安全技術 Vol.19 No.-

자료포락분석을 활용한 일 병동 간호사의 성과평가 방안

박연홍,임지영,Park, Yeon Hong,Lim, Ji Young 한국가정간호학회 2018 가정간호학회지 Vol.25 No.1

Purpose: The purpose of this study was to compare the efficiency of general ward nurses in hospitals using Data Envelopment Analysis (DEA). Methods: Participants were 30 nurses working at a general ward. Input variables were labor cost and time of direct nursing. Output variables were prevention rate of medication error and bedsores, and patient satisfaction. These variables were extracted using literature review and CVI of an expert group. Data were collected from September 18 to October 7, 2017. Data were analyzed using EMS 3.1 program for DEA and descriptive statistics. Results: The average efficiency score of 30 nurses was 0.986, which was very high over all. In the super-efficiency analysis of 11 nurses, their efficiency ranged from 1.0 to 1.047. In addition, when the current output was fixed, the labor cost of nurses did not affect efficiency. Conclusion: This study attempted a new approach concerning performance evaluation of nurses using DEA. This method was useful during appraisal of nurses. We suggest that various input and output variables that were not considered in this study should be added to develop a integrative performance analysis model for nurses.

구치부용 복합 레진 가열시 물리적 성질의 변화에 관한 실험적 연구

박연홍,민병순,최호영,박상진,Park, Yeon-Hong,Min, Byung-Soon,Choi, Ho-Young,Park, Sung-Jin 대한치과보존학회 1989 Restorative Dentistry & Endodontics Vol.14 No.1

The purpose of this study was to examine the effect of temperature dependence of the behavior on the physical properties of posterior composite resins. Three light cure posterior composite resins (Heliomolar, Litefil-P, and P-50) and one chemical cure posterior composite resin (Bisfil-II) were used as experimental materials. Composite resin was placed in a cylindrical brass mold (2.5 mm high and 6.5 mm inside diameter) that was rested on a glass plate. Another flat glass was placed on top of the mold, and the plate was tightly clamped together. After the mold had been filled with the light cure composite material, the top surface was cured for 30 seconds with a light source. Chemical cure resin specimens were made in the same manner as above. Three hundreds and twenty composite resin specimens were constructed from the four composite materials. One hundred and sixty specimens of them were placed in a heater at $50^{\circ}C$, $75^{\circ}C$, $100^{\circ}C$, $125^{\circ}C$, $150^{\circ}C$, $175^{\circ}C$ and $200^{\circ}C$ for 5 minutes or 10 minutes respectively before compressive strengths were measured. Another one hundred and sixty specimens were tested for the diametral tensile strengths in the same way as above. They were randomly divided into eight groups according to the mode of heating methods as follows and stored in distilled water at $37^{\circ}C$ for 24 hours. Group $37^{\circ}C$ - specimens were stored at $37^{\circ}C$ in distilled water for 24 hours. Group $50^{\circ}C$ - specimens were heated at $50^{\circ}C$ after curing. Group $75^{\circ}C$ - specimens were heated at $75^{\circ}C$ after curing. Group $100^{\circ}C$ - specimens were heated at $100^{\circ}C$ after curing. Group $125^{\circ}C$ - specimens were heated at $125^{\circ}C$ after curing. Group $150^{\circ}C$ - specimens were heated at $150^{\circ}C$ after curing. Group $175^{\circ}C$ - specimens were heated at $175^{\circ}C$ after curing. Group $200^{\circ}C$ - specimens were heated at $200^{\circ}C$ after curing. Twenty specimens of each of four composite resins were respectively made by insertion of materials into same mold for examining the dimensional changes between before and after heating. The final eighty specimens were stored in distilled water at $37^{\circ}C$ for 24 hours before testing the dimensional changes. Compressive and diametral tensile strengths were measured crosshead speed 1mm/minute and 500Kg in full scale with a mechanical testing machine (DLC 500 Type, Shimadzu Co., Japan). Dimensional changes were determined by measuring the diametral changes of eighty specimens with micrometer (Mitutoyo Co., Japan). Results were as follows: 1. Diametral tensile strengths of specimens in all groups were increased with time heated compared with control group except for that in group $50^{\circ}C$ and the maximum diametral tensile strength was appeared in the specimen of Litefil-P heated for 10 minutes at $100^{\circ}C$. In heliomolar and P-50, it could be seen in the specimen heated for 10 minutes at $150^{\circ}C$, but in Bisfil-II, it could be found in the specimen heated for 5 minutes at $150^{\circ}C$. 2. Compressive strengths of specimens in all groups was tended to be also increased with time heated but that in group $50^{\circ}C$ and the maximum compressive strengths were showed in the same specimens conditioned as the diametral tensile strengths of four composite materials tested. 3. In Heliomolar, Litefil-P, and Bisfil-II, it was decreased in diameters of resin specimens between before heating and increased in diameters of resin specimens after storing in distilled water, but it was not in P-50. 4. There is little

국내 거주 베트남인, 미얀마인 대상 자국의 식문화 조사

김양숙,박연홍,차성미,최정숙 한국식품영양학회 2010 한국식품영양학회 학술대회논문집(학술심포지움) Vol.2010 No.12

호흡기 질환 예방을 위한 멀티미디어 교육이 학령전기 환아의 지식 및 행위에 미치는 효과

손지영,박연홍,박미희,손은사,박진영,김순희 병원간호사회 2008 임상간호연구 Vol.14 No.1

Purpose: The purpose of this study was to identify the effects of multimedia educational program of the prevention of respiratory disorders on knowledge and behavior of preschool children. Method: The research design used a nonequivalent control group pre-posttest. 32 subjects in the control group received no intervention, 33 subjects in experimental group received a multimedia educational program that consists of video, named ‘The strong girl and weak girl’, 5 different picture boards, method of hand washing, tooth brushing, and reinforcement. The data were analyzed by using x2-test and t-test for determining of homogeneity and testing the hypothesis. Results: There were significant increases in knowledge and behavior in the experimental group compared to the control group. Conclusion: From the results of this study, the multimedia educational program significantly increased knowledge and behaviors of preschool children for preventing respiratory disorders. These findings suggest that a multimedia educational program can be used as an efficient nursing intervention of preschool children for preventing respiratory disorders.

가스냉방의 경제성 분석

김봉진,박연홍 대한산업공학회 1998 산업공학 Vol.11 No.1

충격반향기법을 이용한 깊은 기초의 건전도 평가(수치해석)

김동수,박연홍 한국지반공학회 1999 한국지반공학회논문집 Vol.15 No.2

근래에 들어 구조물의 대형화에 따라 현장타설 말뚝을 하부 구조물로서 광범위하게 적용하고 있다. 그러나 현장타설 말뚝에 결함이 생기면 상부 하중에 대한 지지력 저하와 함께 침하량이 증가하게 되어 상부 구조물에 치명적인 손실을 초래할 수 있다. 따라서 비파괴시험 기법에 의한 콘크리트 말뚝의 효과적인 건전도 평가기법 개발이 중요하게 대두되고 있다. 본 연구에서는 수치해석을 통하여 콘크리트 말뚝의 건전도 평가에 이용되는 충격반향기법의 적용성을 검토하였다. 3차원 축대칭 유한요소법을 이용하여 건전한 말뚝과 현장타설 말뚝의 전형적인 결함인 병목, 공동, 불량 콘크리트를 포함하는 말뚝, 그리고 지반 및 암반위에 놓인 말뚝에 관한 해석을 수행하였다. 해석결과 현장타설 말뚝에 적용되는 충격반향기법의 적용성 평가에 있어서 유한요소법이 효과적임을 알 수 있었다. These days we broadly apply drilled shafts for deep foundations to build infrastructures. The defects of the deep foundations cause the decrease of their support load capacity and the increase of settlement, and the subsequent damage of the super-structures. In consequence, non-destructive testings techniques of concrete piles are important for their integrity evaluation. To improve understanding and reliable application of the impact echo method for the integrity evaluation of the drilled concrete piles, numerical studies of the impact response of concrete piles by using axi-symmetric three-dimensional finite element method are peformed for (a) sound piles: (b) piles containing necks, voids and layers of low-quality concrete: and (c) piles in soil and/or above rock. The results of these studies show that the finite element method is effective for evaluating the impact response of drilled concrete piles.

가스산업 조직 및 규제 동향의 국제비교

남궁윤,박연홍,최성수,김경식 한국에너지학회 1996 에너지공학 Vol.5 No.2

본 연구는 가스산업 조직과 규제 정책을 중심으로, 주요선진국들과 국내의 가스산업을 비교한 것이다. 그리하여, 우리나라와 미국, 캐나다, 영국, 프랑스, 독일 및 일본의 천연가스 산업 구조와 규제현황, 성장과정 등을 비교·분석하였고, 그 결과는 다음과 같다. 첫째, 가스산업이 성숙된 국가들은 상류부문과 최종소비자 보급부문의 시장경쟁을 촉진하려는 것이 최근의 추세이다. 그러나, 현재 우리나라는 도시가스 최종판매부분이 완전 민영화되어 있는데, 그러면서도 전국적 배관망이 완성되지 않아, 제 3자 수송을 통한 도시가스 보급경쟁의 조장은 아직 이르다고 할 수 있으며, 수요 급성장에 대응하여 안정적인 공급기반을 구축하는 것이 우선적인 정책과제라 본다. 둘째, 지금과 같은 LNG 형태의 도입 계약 확대와 더불어, 파이프라인을 통한 가스도입 방법의 모색과 도입선 다변화 등 적극적 자원확보 방안이 검토되어야 한다. 셋째, 비교 대상국들의 가스관련 기술개발이 대외 공여수준에 이르는데 반해 우리나라에서는 아직 미약한 실정이므로, 가스기슬의 개발과 자립기술을 바탕으로 한 해외사업 진출 등 부가가치를 더욱 증대시킬 수 있는 영역으로의 사업다각화가 필요하다. Six countries are considered in the study for the comparison of their respective gas industries with the Korean gas industry: the U.S., Canada, the U.K., France, Germany and Japan. The emphases of comparison are given on the cross-evaluation of industry organizations and related regulations. In terms of industrial development stages, the Korean gas industry, with its short experience and in need of more infrastructure, is still young and at an early stage of development. Due to this reason, the study finds that it is premature for the Korean case to propose some policies like the promotion of competition in the gas transportation through third-party access to pipelines. or seeking overseas business opportunities requiring venture capital and advanced technology. Recommendations are made that Korea rather, for the time being, concentrate its energy on the construction of infrastructure and on securing supply sources and diversifying import origins, in order to strengthen it's supply capability in the face of rapidly increasing gas demand in the nation. Nevertheless, Korea will soon have to consider more seriously about the deregulation of the market and more diversified business activities through the development of high technology and managerial skills.

베트남인의 식생활 행동에 따른 한식에 대한 태도 분석

차성미,이혜원,박연홍,김양숙,최정숙,김행란 한국식품영양학회 2010 한국식품영양학회 학술대회논문집(학술심포지움) Vol.2010 No.12