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.

임상간호사의 직무만족도와 피로와의 상관관계 연구

全花淵,朴志晞,任玄彬 동남보건대학 2000 論文集-東南保健大學 Vol.18 No.2

This research descriptive and relational was conducted to identify any relationship between job satisfaction and fatigue of clinical nurses. The purpose of this study is to provide a basic source of data for an intervention program in increasing job satisfaction and diminishing the fatigue among clinical nurses. The sample consisted of 93 nurses of a university hospital located in Suwon. The data was collected in a one month period from June 1 to 30, 2000. The tools used for the study was a structured questionnaire titled "Job Satisfaction Index" developed by Brayfield and Rothe and the "Subjective Symptoms of Fatigue Test" designed by the Research Committee of Industrial Fatigue of the Hygienic Association of Japan. The data was analyzed by frequency, percentage, mean. standard deviation. Pearson's correlation coefficient, t-test, ANOVA, and Cronbach's alpha by use of the SPSS. The results of the study are as follows: 1) The mean age of subjects was 27.04 years old. 29.0% of the respondents were Catholic religion and 73.1% were graduates of a 3 years course. 2) The job satisfaction level mean was reported as 58.15 and the standard deviation as 9.68. 3) The fatigue level mean was reported as 31.54 and the standard deviation was 12.69. 4) There was a significant correlation between the physical, psychological and neuro-sensory symptoms of fatigue. 5) There was a negative correlation between job satisfaction and fatigue (r=-.5734. p=.000) meaning if job satisfaction is high then fatigue is reported as low. 6) Job satisfaction was significantly related to the general characteristics of present position(t=-2.94, p=.004), working place(F=3.322, p=.013) and the expectant period of duty(F=9.277. p=.000). 7) The general characteristics influencing fatigue were significantly related to age(r=-193, p=.032), clirocal experience(F=3 691, p=.008), working place(F=2.469, p=050) and the expectant period of duty(F=2.823, p=.043).

폐플라스틱 열분해오일의 연료 및 나프타 활용 방안

전화연(Hwayeon Jeon),김목연(Mockyeon Kim),이지수(Jisu Lee),김재곤(Jae-Kon Kim) 대한환경공학회 2022 대한환경공학회 학술발표논문집 Vol.2022 No.11

경유연료의 세탄가, 유도세탄가 및 세탄지수의 상관관계 분석

전화연,김지연,김신,임의순 한국응용과학기술학회 2018 한국응용과학기술학회지 Vol.35 No.4

세탄가는 경유의 품질기준 중 하나로써 디젤엔진에 사용되는 경유 연료의 착화성을 평가하는 항목이다. 세탄가 기준은 현재 자동차용 경유 기준으로 52 이상이며, 일반적으로 세탄가가 높으면 시동성이 좋고 운전이 원활해지나 지나치게 높으면 연소가 불균일해져 매연의 원인이 되고 연료소비량이 증가한 다. 현재 국내의 품질시험방법에 규정되어있는 세탄가 측정방법은 CFR엔진을 이용한 세탄가분석, 경유의 밀도와 증류유출온도를 통하여 세탄가를 산출하는 세탄지수, CFR엔진의 단점을 보완하여 고온에서 연료의 연소되는 시간을 통해 세탄가를 측정하는 유도세탄가 등이 있다. 본 연구는 이러한 세탄가를 정유사별, 하·동절기별 시료를 확보하고 이를 분석하여 다양한 인자들에 의한 세탄가 측정방법의 상관관계에 대하여 분석하였다. 이를 통하여 세탄가, 유도세탄가, 세탄지수 순으로 세탄가가 높게 측정 되는 것을 확인하였고, 이를 통하여, 현재 편의성을 이유로 많이 사용되는 세탄지수로 인하여 세탄가 품질미달이 발생할 수 있기 때문에 이에 대한 추가 연구가 필요할 것으로 보인다. Cetane Number is one of the quality standard for diesel, which assesses the compatibility of ignition quality of diesel compression in diesel engines. Cetane number must be upper 52 to keep the recent diesel quality standards. It is known that if cetane number is high, there will be shorter ignition delay periods than being lower. On the other hands, if cetane number is too high that exceeds the quality standard, there will increase the air pollution and decrease of the fuel efficiency because incomplete combustion. In South Korea, various methods are being used to measure the cetane number such as cetane number that used CFR engine, cetane index from calculate density and distillation temperature and derived cetane number to make up for CFR engine that ignition delay in high temperature is implemented. In this study will be conducted by collecting the diesel from the major oil companies, and try to analyze the correlation between the different methods of cetane number with various factors. At the results of this study, it was shown that the cetane index is high then cetane engine and derived cetane number. therefore it will be necessary to additional research for out of cetane number quality standards.

바이오열분해유의 내연기관 적용성 연구

전화연,박조용 한국공업화학회 2021 한국공업화학회 연구논문 초록집 Vol.2021 No.1

간호학생의 간호에 대한 이미지 연구

全花淵,任玄彬 동남보건대학 2001 論文集-東南保健大學 Vol.19 No.2

This research was to identify the image of nursing in nursing students. The purpose of this study is to provide a basic source of data for the nursing education program. The sample consisted of 135 nursing students of 'D' Health College located in Suwon. The data were collected in two month period from April 2 to May 31, 2001. Concepts related to image of nursing were collected by open questions of the group discussion. The collected concepts were classified and categorized. The data were analyzed by mean and standard deviation using the SPSS. The results of the study are as follows : 1) In the image for nursing, the scores from the highest to the lowest are 'self-sacrifice'(62.59), 'patients'(55 19), 'Nightingale'(50.74), 'injection'(42.59), 'kindness'(32.59). 2) In the image for a nurse, the scores from the highest to the lowest are 'kindness'(79.26), 'health'(64.07), 'professional knowledge'(52.96), 'cleanness'(44.44), 'responsibility'(32.96). 3) In the image for the nurse role. the scores from the highest to the lowest are 'injection'(68.89), 'consultation'(47.04), 'check'(46.67), 'education'(37.78), 'record'(35.56). Suggestions are required to develop education program which enables students to experience the positive image of nursing.

천식아동 어머니의 부담감에 관한 연구

全花淵,金蓮淑,崔根明 동남보건대학 1999 論文集-東南保健大學 Vol.17 No.2

The main purpose of this study was to provide basic data for set up a proper nursing intervention program for reducing burdens in mothers with asthmatic children. The research question for this study was 'What are the burdens of mothers with asthmatic children?'. The design of this study was a phenomenological study to identify the experiences of the burdens in mothers with asthmatic children. The data were collected from January 9, 1998 to April 30, 1998 at the pediatric out patient department of a university hospital located in Suwon city. The sample consisted of 21 mothers with asthmatic children. The contents of mothers' burdens were collected through in-depth interviews and observations. The results of this study were summarized as follows; The data on the burden contents were five categorized as psychological, physiological, social, financial and dependent burden. The psychological burdens were feelings of guilty, sorry, resentment, worry, despair, tiresome and collapse. The physiological burdens were insomnia, common cold, fatigue and lethargy. The social burdens were husbands' lack of concern, conflicts between family members and limited social activities. The financial burdens were medical fee and jobless. The dependent burdens were loss of self-confidence and separation anxiety.

노인보건센터 프로그램 만족도 연구

全化淵,權惠正,趙英任,朴卿銀,宋泳和,鄭元美,黃美影,李昇遠,金順姬 동남보건대학 2002 論文集-東南保健大學 Vol.20 No.1

The purpose of this study is to provide a basic source of data for the development of good programs to make elderly life better by identifying the degree of satisfaction of the programs offered by the Elderly Health Center. The sample consisted of 176 people who were involved in the programs of the Elderly Health Center (78 elderly people over 65, 66 volunteer students, 32 community residents) in Suwon. The data were collected from the participants in the programs from November 10 to December 15, 2001. The tools used for the study were structured questionnaires developed by Jun et al. The data were analyzed by frequency, percentage. mean, standard deviation, Pearson's correlation coefficient, t-test, and ANOVA using SPSS. The results of the study are as follows: 1. The mean age of the elderly people was 74.91. 53 people (67.9% of the respondents) were female while 25 people (32.1% of the respondents) were male. 2. The mean score of the program satisfaction was 14.63 out of 15 points. 57 people(73.1%) chose 15 points, 13 people (16.7%) chose 14 points. and 8 people (10.3%)chose 13 points. 3. The program satisfaction was not affected by the difference in the general characteristics of the elderly people. 4. The mean health status and quality of life was reported as 14.85 out of 15 points. 85.2% of the respondents chose 15 points and 14.8% of the respondents chose 14 points. 5. The volunteer students were from 6 departments. Most of them (88%) were under 25. 69.7% of the volunteers (46 people) were female while 30.3% of the volunteers (20 people) were male. 6. The mean score of the program satisfaction by the volunteer students was reported as 13.26 out of 15 points. 25.8% of the respondents (17 people) chose 15 points and another 25.8% of the respondents chose 14 points. 7. The mean perception of and respect to elderly people was reported as 13.50. 8. There was a positive correlation between perception of and respect to elderly people. and the program satisfaction (r=.4998, p=.000), which means perception of and respect to elderly people increase in proportion to the program satisfaction. 9. The program satisfaction was significantly related to the general characteristics of subjects of study (F=2.59. p=.34) while it was not significantly related to sex or age of the volunteer students. 10. The mean perception of the Elderly Health Center by community residents was reported as 25.97. The results show that the programs of the Elderly Health Center are satisfactory for all the people involved: elderly people, volunteer students and community residents. The management of the Elderly Health Center has several benefits: first. community residents can develop self-management ability by participating in various health programs: secondly, the Elderly Health Center contributes to the welfare policy for senior citizens by offering active elderly life thirdly, the Elderly Health Center upgrades Dongnam Health College as a health college and make it play an important role in the matter of health. citizens by offering active elderly life: thirdly, the Elderly Health Center upgrades Dongnam Health College as a health college and make it play an important role in the matter of health.

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.

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