Demonstration of Biofuel for Power Generation

전화연,전철환,도진우,김재곤 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-

In these days, many countries carry out many renewable energy policies to increase therenewable energy portion and to reduce the GHG (Green House Gas). In Korea, RPS(Renewable Portfolio Standards) focused on over 500MW power producers is conducting. And they are using the bio-fuel oil to meet their RPS quota. The bio-fuel oil is a mixture of animal and vegetable fat or fatty acid ester of them and should satisfy some specifications to use the power generation such as viscosity, pour point, acid number. In this study, we investigate fuel characteristic of power bio-fuel for power generation during 5 years in demonstration project.

감각자극이 필요한 아동을 위한 부모교육 및 감각자극 매뉴얼 제작

전화연,박주현,박근영,안백란,김락현,우소연,이재원,김민성,김진주,양효준 한국의료QA학회 2008 가을학술대회 Vol.2008 No.3

2005학년도 신입생 실태조사 분석

전화연 숙명여자대학교 학생생활지도연구소 2006 學生生活硏究 Vol.28 No.-

내담자 기록지 내용 보고서 : 2005. 1. 1. - 2005. 12. 31.

전화연 숙명여자대학교 학생생활지도연구소 2006 學生生活硏究 Vol.28 No.-

본 조사는 2005년도에 개인상담을 받기 위해 상담소를 내방한 신규내담자 146명 중 132명의 내담자 기록지를 정리하고 분석한 것으로 내담자 기록지중 일정 기간 내에 각 상담자들로부터 수거된 기록지만을 대상으로 분석이 이루어졌다. 내담자의 전공학과(학부), 학년, 거주형태 등의 인구학적 특성과 상담의 주요 관련변인이라고 생각되는 내담자 호소문제, 가정 분위기, 상담 받으러 온 경위, 전공 만족도, 경제 상태를 살펴보았다. 이러한 분석은 대학생 내담자 집단의 특성을 이해하고 학생생활상담소가 제공해야 할 서비스의 내용과 방향을 설정하기 위한 기초 자료로 활용될 수 있을 것이다.

입원한 학령전기 아동의 놀이형태 분석 연구

전화연,임현빈,이명숙 동남보건대학 2003 論文集-東南保健大學 Vol.21 No.1

The purpose of this study was to provide a basic source of data for play programs for hospitalized preschool children. The sample consisted of 29 cases of children's play observed in pediatric units of university hospital in Gyeonggi-do. The data were collected for one month period from April 1 to 30, 2002. The study was based on 3minute observation of play environments, types, contents, responses. The results were as follows. l. 48.3% of subjects were female and 51.7% were male. 31.0% of subjects had pneumonia. 2. 86.2% of play place were on the bed. Toys for play were sketch books, cars, dolls, robots, color pencils, color papers, and scissors. 3. 75.9% of play type was interaction play with his/her mother. 4. 27.3% of play contents were symbolic play using robots. lego and dolls. 5. The play seemed to increase Children's positive feeling.

청소년 대상 진로척도 연구동향 분석: 국내 학술지 중심으로

전화연,백연우,김봉환 한국청소년학회 2021 청소년학연구 Vol.28 No.10

The purpose of this study is to analyze the contents of the career scale components measured in domestic career counseling research, focusing on measurement tools, and to make suggestions for future career counseling and research. From 2001 to 2020, targeting 65 scales used in the study of career scales for youth Contents were analyzed based on understanding and exploration, career information search, career planning and decision-making, psychological support, etc. As a result, first, career-related scales have been continuously developed since 2001, and the scales studied between 2011 and 2020 accounted for 67.7% of the total career-related scales, and have been more actively developed since 2010. Second, among adolescents, the scale targeting university students accounted for the most at 70%, and among them, many scales were developed to limit measurement to specific subjects among college students, such as college students with disabilities, college freshmen. In addition, the scale measuring the integrated target such as middle and high school students and college students was 18%. Third, when classified based on the Career Net appeal problem classification table, most of the scales evaluated ‘etc’, and the number of scales that evaluated ‘career information search’ was small. Discussions and suggestions are presented based on the results of this study. 본 연구는 국내 진로상담 연구에서 측정되고 있는 진로척도 구성 요소를 중심으로 측정도구를 분석하고, 향후 진로상담과 연구에 제언하는 것에 목적이 있다. 2001년부터 2020년까지 청소년 대상 진로척도 연구에서 사용된 65개의 척도를 대상으로 연구대상, 시기, 진로척도 구성요소별 척도의 현황을 커리어넷 상담 호소문제 분류표(자기 이해 및 탐색, 진로정보 탐색, 진로계획 및 의사결정, 심리적 지원, 기타)를 기준으로 내용을 분석하였다. 그 결과 첫째, 2001년부터 진로척도는 꾸준히 개발되고 있으며, 2011년에서 2020년 사이에 연구된 척도가 전체 진로관련 척도의 67.7%로 2010년 이후로 더 활발히 개발되고 있다. 둘째, 청소년 중에서도 대학생을 대상으로 하는 척도가 70%로 가장 많았으며, 그중 장애 대학생, 대학신입생, 전문대학생 등 대학생 중 특정 대상으로 한정하여 측정하는 척도가 다수 개발되었다. 또한 중·고등학생, 고등학생·대학생 등을 혼합한 대상을 측정하는 척도는 18%로 나타났다. 셋째, 커리어넷 호소문제 분류표를 기준으로 구분해보면, ‘기타’에 해당하는 부분이 가장 많았으며, ‘진로정보 탐색’에 대해 평가하는 척도의 개수가 적었다. 본 연구 결과를 토대로 논의 및 제언을 제시하였다.

장애아 어머니의 부담감과 사회적지지에 관한 연구

전화연,권혜정,김상진,Jun, Hoa-Yun,Kwon, Hye-Jeoung,Kim, Sang-Jin 대한물리치료과학회 1997 대한물리치료과학회지 Vol.4 No.2

Mothers of handicapped children experience many problems and difficulties related to the child's prolonged dependency and demands for special care. Social support can be identified as stress-relieving factor, social support is considered to decrease the amount of negativeness in an individual or family. This study attempted to identify the level of burden and social support in mothers of children who are handicapped, and to determine whether social support is an effective strategy for burden relief in these mothers. The method used in the study was a correlational descriptive survey using a questionnaire. The subjects for the study were 42 mothers who have the handicapped children, between two to twelve years of age, being treated at S General Welfare House for Handicapped and S Rehabilitation Center in Seoul. The data were collected during 1 month from March 20 to April 20, 1996. The instruments used for this study was a structured questionnaire which was the Burden scale developed by Suh Mihae and Oh Kasil(1993) and the PRQ(Personal Resource Questionnaire) scale developed by Brandt & Weinert(1981). The collected data were analyzed using the SPSS computer program, yielding frequencies, percentiles, means, standard deviations, $x^{2}$-test, Pearson's correlation coefficienct, t-test and ANOVA. The results of this study are as follows ; 1)The range of age in the subjects was $29{\sim}44$ years, the range age in the handicapped children was $2{\sim}12$ years. 2) The mean score of burden, for the mothers of the handicapped children was 2.75(standard deviation was 0.47) of a possible total of 5. 3) The mean score of social support, for the mothers of the handicapped children was 4.99 (standard deviation was 0.59) of a possible total of 7. 4) There was an negative correlations hip between burden level and the social support, but there was no statistically significant correlationship between burden level and the social support(r = -.2252, p = .076) 5) In the general characteristics influencing on the burden level was significantly related with the sex(t = - 2.87, p = .007) and the degree of child's handicap level(F = 11.8680, p = .000l). In the general characteristics influencing on the social support was significantly related with the family(husband) support(F = 3.5199, p = .0240). There were significant differences in the mother's levels of burden depending upon the severity of child's handicap. In other words, the degree of mother's burden was directly proportionate to the degree of child's handicap level. There were significant differences in the mother's levels of social support depending upon the family(husband) support. In conclusion, on the basis of the results of this study, there was no statistically significant correlationship between burden level and the social support. Above results suggest that strategies for the intervention programs in diminishing the mother's burden and reinforcing the social support.

학생생활상담소 2005학년도 활동보고 : 2005. 1. 1. - 2005. 12. 31.

전화연 숙명여자대학교 학생생활지도연구소 2006 學生生活硏究 Vol.28 No.-

집단 사회적지지와 개별 사회적지지가 천식아동 가족의 부담감과 가족기능에 미치는 영향

전화연 한국간호과학회 1999 Journal of Korean Academy of Nursing Vol.29 No.2

감압증류를 통해 분획된 폐플라스틱 열분해유의 특성평가와 구성성분 비교분석 연구

전화연,전철환,박성준,이재우,김재곤,Hwayeon Jeon,Cheol Hwan Jeon,Sung Joon Park,Jae Woo Lee,Jae-kon Kim 한국청정기술학회 2023 청정기술 Vol.29 No.4

전 세계적으로 폐플라스틱 발생에 따른 환경적 문제로 인해 이를 처리하기 위한 다양한 연구가 진행되고 있다. 이 중 폐플라스틱을 열분해하여 연료 및 원료 등으로 재활용하는 방법이 보편적이다. 본 연구에서는 '폐플라스틱 열분해유(WPPO)의 나프타 원료로 활용'을 목적으로 총 5종의 폐플라스틱 열분해유(WPPO)의 물성분석을 통해 나프타 원료로 사용이 가능한지 살펴봄과 동시에 넓은 비점범위로 인해 분리정제 기술 중 하나인 감압증류를 통해 light fraction과 heavy fraction으로 분획 및 GC-VUV로 paraffin, 올레핀 함량 및 기타 화합물 등의 구성성분을 나타내었다. 그 결과, WPPO의 원료, 분획에 상관없이 높은 올레핀 함량이 나타났고 방향족 및 paraffin 함량 등은 원료에 따라 차이가 발생하였고 산소 및 기타 화합물도 원료 및 분획별 차이가 큰 것으로 나타났다. 또한, light fraction은 나프타와 유사한 탄소분포를 나타내지만, heavy fraction은 탄소분포가 C₁₁ ~ C₁₄로 나타났다. 결론적으로, 폐플라스틱 열분해유의 나프타원료 활용을 위해서 추가 공정이나 원료 선별 등이 필요할 것으로 판단된다. Globally, the amount of waste plastics has been occurring to environmental problems. As a result, it is necessary to research methods that utilize waste plastic pyrolysis oil (WPPO) produced by pyrolysis. One such method being studied is utilizing WPPO as a naphtha feedstock. In this study, five types of WPPO were analyzed to determine whether they can be used as raw materials for naphtha. Because of their wide boiling point range, the WPPOs were fractionated into light and heavy fractions through vacuum distillation, and the separation and purification techniques were analyzed using GC-VUV to determine the content of paraffin, olefin, and other compounds. All WPPOs showed high olefin content regardless of the source and fraction. Aromatic and paraffin content varied depending on the source, and oxygen and other compounds also varied significantly by source and fraction. In addition, the light fraction showed a carbon distribution similar to that of naphtha, whereas the heavy fraction showed a carbon distribution of C₁₁ ~ C₁₄. In conclusion, additional processes and raw material selection are required to utilize waste plastic pyrolysis oil as a raw material for naphtha.