Preparation of petroleum impregnating pitches from pyrolysis fuel oil using two‑step heat treatments

Jong‑Eun Choi,Seunghyun Ko,Young‑Pyo Jeon 한국탄소학회 2019 Carbon Letters Vol.29 No.4

Petroleum-based impregnating pitches were prepared from pyrolysis fuel oil (PFO) using a two-step heat treatment without a separation process. The pressurized heat treatment, the first step, was used to improve the properties of the pitches and enhance the product yield by promoting the cracking and polymerization of the components in the PFO. An atmospheric heat treatment as the second step was used only to synthesize the impregnating pitches from the liquid pitches prepared during the first step. The prepared impregnating pitches had the properties of a commercial petroleum-based impregnating pitch. The impregnation performance was evaluated by HT-XRD and an impregnation test. The HT-XRD results showed changes in the stacked structure of the pitches at the impregnation temperature. The bulk density of the carbon block was increased to 14.3% and the porosity was reduced by 10.3% after the impregnation/recarbonization process. The high reaction temperature during the first step induced the formation of quinoline insoluble (QI) components during the second step of the treatment, and the QI components adversely affected the impregnation process.

고령자의 스포츠참가와 생활만족도에 관한 연구

정종훈,김종표,김유수,안종학 東亞大學校附設스포츠科學硏究所 1999 스포츠科學硏究論文集 Vol.17 No.-

The issues for the aged have been appearing on the stage as the deep social problems since the end of 1970's when our communities began to enter into high level industry, which were concerned by people in modern times. The starting time to study on the aged in Korea was from the 1960's. Moreover, it was lively proceeded during the end of the 1970's and the 1980's. At first, it mainly dealt medical issues for them, then, spread up to their social concerns later. This study was to research about the participating type of the aged' leisure, sports activities, as well as its changable relationships with life satisfaction on the premise regarding the necessity of positive practice toward leisure and its participation as the positive solution scheme from the aged' issues, which was based on the social concerns related with the aged. According to the questionary method, to select the main group who were over 60-years-old, men and women in Pusan, it was studied and analyzed regarding the realities of the aged's leisure activities, the participating attitude in sports, the relationships between the degree of satisfaction life when participating in sports activities and the life satisfaction. The results were as follows ; 1. Among the low ranking scopes of the participating attitude in sports, in case of participating in sports for the self-training of character-building themselves, it significantly had and effect on the satisfaction of life. 2. In case of building their own character through sports activities, it had the highest effect on the satisfaction of life. 3. The satisfaction of sporting activities in their childhood had and effect on the life satisfaction.

한국의 정신분열병 외래 환자의 직ㆍ간접비용

박종익,송선희,서동우,장현종,이종국,장안기,김윤,이철,홍진표 大韓神經精神醫學會 2000 신경정신의학 Vol.39 No.3

연구목적 : 정신분열병 외래 환자의 직접 비용과 간접 비용을 추산해 보고, 의료 자원의 적절한 운용과 효과적인 배분을 위한 보건 정책의 기초자료로 사용하고자 한다. 방 법 : 정신분열병 진단을 받은 289명의 환자를 대상으로 6개월간 외래를 방문하면서 사용한 의료비와 시간을 조사하여 직접 비용을 추산하였고, 이 기간 동안 소실된 생산성을 간접 비용으로 환산하였다. 만성질환인 관상동맥 질환을 앓고 있는 환자 82명을 대조군으로 하여 비용을 비교하였다. 결 과 : 정신분열병 환자의 실업률은 72.1%였으며, 직장을 가지고 있는 경우에도 단순노무직의 비율이 64.5%로 매우 높았다. 정신분열병의 직접 비용은 평균 81.5만원으로 관상동맥 질환의 평균 71.5 만원보다 상대적으로 많이 추산되었으나 유의하지는 않았다. 간접 비용은 평균 645.6만원, 258.9 만원으로 정신분열병군이 2.5배 정도 높았다. 결 론 : 정신분열병은 다른 만성질환에 비하여 상대적으로 매우 고비용이 요구되는 질환이며, 보다 체계적인 비용의 추산을 통하여 양질의 정신 보건 서비스를 제공할 수 있는 토대가 마련되어야 할 것이다. Objectives : We have aimed to estimate the direct and indirect costs of treating out-patients with schizophrenia in Korea, to use this fundamental data for the effective management and proper distribution of the medical resource. Method : To estimate the direct cost, we surveyed the medical cost and time of two hundred and eighty-nine out-patients with schizophrenia for six months. And the lost productivity as many months was converted into the indirect cost. Those of eighty-two coronary heart disease patients were also estimated as a comparison group. Results : An unemployement rate of schizophrenic patients was 72.1 percent. Moreover the ratio of the laborer in the sample was, even if employed, 64.5 percent. The mean direct cost of schizophrenic patients was, about 815,000 won, higher than that of coronary heart disease, 715,000 won however it was not statistically significant. The former was also estimated 2.5 times more than the latter for the indirect cost, or 6,456,000 won versus 2,589,000 won. Conclusion : Schizophrenia is a relatively costly illness compared to other chronic illness, so the systematic estimation of the cost is necessary to provide mental health service of high quality.

한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률

조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4

Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

초등학생의 태권도 수련이 신체적 자아개념에 미치는 영향

표종현 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.3

This study investigated the possibility that elementary school students' Taekwondo training might have some influence on their physical self-description. 900 elementary school students were chosen as subjects for this research. Of them, some were being trained in Taekwondo, and others were not. Among 900 questionnaires, 95 questionnaires were deemed untrustworthy, because of double-marked and/or non-answered replies. Therefore, 805 questionnaires were used to analyze the results. The questionnaire used in this research was reconstructed from Byong-Jun Kim's questionnaire, originally derived from Marsh's Physical Self-Description Questionnaire(PSDQ). On the base of the research data, one-way ANOVA, two-way ANOVA, and t-test were performed. The results are as follows. 1. The result of the comparison between a Taekwondo training group and a non-training group showed that the Taekwondo training group had a higher physical self-description than non-training group. 2. Among the Taekwondo training group, male students perceived physical strength and sport efficiency higher than female students. Between male and female students, however, there is no significant difference in general physical self-description. 3. As a result of a comparison of the training period, long-term trainees perceived higher physical self-description than short-term students. Short-term trainees perceived higher physical self-description than non-training students as well.

무용수의 공연불안감 측정도구 개발

표내숙,김정숙,표종현 釜山大學校 附設 體育科學硏究所 2002 體育科學硏究所 論文集 Vol.18 No.1

This study prepared a questionnaire for the measurement of dancers' anxiety about dance performance, based on a similar questionnaire of sports competition anxiety developed by Smith et al.(1990). The questionnaire as prepared here contained question items for the measurement of dancers' anxiety, worry and distraction. The question items were applied to survey respectively 70, 50 and 62 dance students at colleges in Busan over three sessions. The validity of the questionnaire was verified through the exploratory factor analysis and by using Cronbach αcoefficient. Cronbach αcoefficients for the questionnaire developed in this study were found ,7650 for 'distraction', .6480 for 'anxiety' and .6305 for 'worry', suggesting that the questionnaire was reliable in measuring dancers' anxiety about dance performance. Data from th survey as above mentioned showed that dancers were different with each other in such anxiety according to their cognitive and physical senses of dance stage and performance. The data also showed that such psychological aspect of dancers was influenced by their dance experience, dance career and personality, a performance place, stage settings, the tempo of performance music and stage costumes. There were no differences among dancers in anxiety according to their dancer career. In other words, dance career itself had nothing to do with dancers' confidence in performance. Despite they obtain high skills of dance expression by repeating dance practice, dancers tend not to be able to use such skills to the utmost in actual performance due to stresses and strains under a changed situation. This may be referred to as control confusion by personal, psychological anxiety rather than as lack in technical dance skills. It may also be regarded as a psychological state of stage fright(state anxiety in dance performance) dancers face when they do not practice dance in a closed space but meet the audience on actual dance stages. In relation, it was reported that dancers with high trait anxiety were higher in stage anxiety scores during dance practice and during and after dance performance than those with low trait anxiety. Meanwhile, it was suggested that a form of the psychological test of dancers considering characteristic of stage performance should be developed and that cognitive concepts of dance be actively studied. In conclusion, dance performance should be made only after dance practice which ensures harmony between physical and psychological aspects. Now the researcher would survey dancers by using a questionnaire for the measurement of dance performance anxiety, whose validity is clearly verified, and modify and supplement the questionnaire to raise its reliability. The the researcher would conduct a more profound study about effects of such anxiety as mentioned above on dance performance.

중학생의 체육에 대한 내적동기가 체육수업만족에 미치는 영향

표종현,표내숙 釜山大學校 附設 體育科學硏究所 2010 體育科學硏究所 論文集 Vol.26 No.-

본 연구는 중학생의 체육수업에 대한 내적동기가 체육수업만족에 미치는 영향을 알아보고자 B광역시 소재 중학생 443명을 대상으로 체육에 대한 내적동기 질문지와 체육수업만족도 질문지를 이용하여 조사하였으며, SPSS 12.0 통계프로그램을 이용하여 탐색적 요인분석, 신뢰도 분석, t-test, 일원변량분석, Duncan 검증, 상관분석, 다중 회귀분석을 실시하여 다음과 같은 결론을 도출하였다. 첫째, 남학생이 여학생보다 체육에 대한 내적동기의 하위요인 중 재미.노력과 유능감이 높았으며, 체육수업만족도 높았다. 둘째, 1학년과 2학년은 3학년보다 체육에 대한 내적동기의 하위요인 중 유능감이 높았으며, 1학년은 2학년과 3학년보다 체육수업만족이 높았다. 셋째, 중학생의 체육에 대한 내적동기의 하위요인 중 재미.노력이 체육수업만족에 영향을 미치는 것으로 나타났다.

정신건강 증진을 위한 운동요법의 개발

표내숙,표종현 부산대학교 사범대학 2002 교사교육연구 Vol.41 No.-

The purpose of this research was to development of the movement therapy. To achieve this purpose, 5 experimental case study was used as a research methodology. The results were as follows. First, the effective methods of movement therapy were dance therapy, swimming therapy, taekwondo therapy, and danjun breathing therapy. Second, I recommend to movement therapy those who are limbs handicapped, mentally retarded, the advanced age of seventies and fatted high school girls etc. Third, It took above half year to cure mental and psychological disorder. Fourth, The measurement apparatus of movement therapy effectiveness were SCL-90-R, anxiety text, RT, EEG, EMG, hart rate and blood pressure etc.

제6차 교육과정에 따른 실과 전기 테스터 다루기영역에 관한 상세화 연구

강종표 진주교육대학교 1994 論文集 Vol.1994 No.38

교사·학생간의 친밀한 인간관계가 학습습관·학업성취에 미치는 영향

홍점표,박종흡 창원대학교 학생생활연구소 1999 학생생활연구 Vol.12 No.-