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서호성,박병흥,Seo, Ho Seong,Park, Byung Heung 한국교통대학교 융복합기술연구소 2016 융ㆍ복합기술연구소 논문집 Vol.6 No.2
Recently, due to the climate change by global warming, the amount of snow has increased. The situations were demanded to use many snow removal materials. The snow removal materials that used in Korea were solid chloride deicing material. That is calcium chloride($CaCl_2$) and sodium chloride(NaCl). Solid chloride baesd snow removal materials have various property, for example good freezing point depression, deliquescence and economical solvents. However, there are problems such as water pollution, high corrosiveness and ecocide. For such reason, development of eco-friendly deicer was required obligatorily. This study investigated development situation of eco-friendly deicer materials.
서호성,박병흥,Seo, Ho Seong,Park, Byung Heung 한국교통대학교 융복합기술연구소 2015 융ㆍ복합기술연구소 논문집 Vol.5 No.2
Deep eutectic solvents (DESs) are now broadly understood as a new kind of ionic liquid (IL) because they exhibit many characteristics and properties similar with ILs. The DESs made of quaternary ammonium salt blended with one of hydrogen bonding donor (HBD) compounds behave as ILs even at very low temperature. In this study, properties such as density, viscosity, surface tension, conductivity, and electrochemical behavior of DESs were reported and their applications were reviewed. Study on DESs has been drawn attention on application in metal finishing, but these solvents can be used in a variety of synthesis, and their potentials have been demonstrated in various areas. DESs are expected to offer applicability by extending the types of salts and hydrogen bond donor mixtures.
서호성(Ho Sung Seo),최원준(Won Jun Choi),김진희(Jin Hee Kim) 한국스포츠교육학회 2004 한국스포츠교육학회지 Vol.11 No.2
여중생의 혼성학급 체육수업 인식을 분석하기 위해 K중학교 2학년 12명을 대상으로 심층면담을 수행하였다. 수집한 자료는 주제별 약호화와 분류체계분석을 통해 해석하였다. 연구 결과 여중생들의 혼성학급 체육수업에 대한 인식은 긍정적, 부정적으로 확연하게 구분되는 양면성을 띠고 있었다. 긍정적 인식은 체육은 짱!, 남학생은 흑기사, 즐거운 게임, 또래와의 어울림, 장기자랑, 건강과 체력향상 등으로 나타났고, 부정적 인식은 체육복이 싫어!, 남학생의 놀림, 선생님은 남학생 편, 짜증나는 수업, 남학생의 물래보기 등으로 나타났다. 이러한 결과가 나타난 이유에는 편의 시설 부족, 남녀 학생의 신체기능 차이와 흥미를 고려하지 않는 교육과정 운영과 여학생에 대한 교사의 선입관, 양성평등 교육의지의 부족, 남학생의 성에 대한 이해 부족 등에서 비롯 되었다. The purpose of this article is to analyze coeducational perception of middle girls` in physical education (PE) lass. For this, in-depth interview is analyzed, with 12 volunteers, Data from single case method is analyzed using qualitative approach through theme coding and taxonomy. Girls student are believed that both dimensions positive and negative perception of coeducational PE class. For the positive dimension were that PE is best friend, boys are gentleman, exdting game, familiar with peer, simple game with pride and joy, fitness & health improvement. Otherwise, the characteristics of the negative perception were that dislike sport gear, raillery of boys, teacher is boy side, a hot temper class, steal looking of boys.
서호성(HS Seo),남철(C Nam),김창수(CS Kim),장병곤(BK Jang),양희동(HD Yang),박세준(SJ Park) 대한산부인과학회 1996 Obstetrics & Gynecology Science Vol.39 No.6
From January, 1989 to December, 1994, 245 cases of uterine myoma were treated at the department of Obstetrics and Gynecology, Pusan Medical Center. A clinico-statical study on these 245 cases of uterine myoma was performed to understand the clinical characteristics of uterine myoma. The following results have been obtained: 1. The incidence of uterine myoma among 1,352 cases of major gynecologic surgery during this period was 18.1%. 2. Uterine myomas were observed most frequently in the age group 40 to 49 years, and the mean age was 43.9 years old. 3. The parity was 2.9 in average, the infertility was observed in 20 cases(8.2%) in while the primary infertility was 7.8%, the secondary 0.4%, respectively. 4. The corporeal myomas were observed in 236 cases(96.3%), whereas cervical myomas were 9 cases(3.7%). The intramural types were observed in 142 cases(58%), combined types in 46 cases(18.7%), subserous types in 32 cases(13.1%), submucous types in 25 cases(10.2%), respectively. 5. The most of frequent chief complaint was pain which was observed in 209 cases(85.3%), the next abnormal uterine bleeding in 137 cases(52.2%), palpable mass in 47 cases(19.2%), respectively. 6. The mean value of preoperative Hb was 10.9gm/dl, and transfusion was performed in 43 cases(17.5%). 7. The mean weight of the resected uterine myoma was 274.9 gm. 8. The secondary changes in uterine myomas were found in 29 cases(11.8%) and the most common change was hyaline degeneration(4.8%). 9. The most common associated conditions with myomas were chronic cervicitis(39.6%). 10. Hypermenorrhea was observed in 112 cases(45.7%) and there were significant correlations between the presence of hypermenorrhea and the type of myoma(p0.5). 11. There were no significant correlations between the dysmenorrhea and the weight of myoma, location of myoma, and types of myoma(p