2008년 서울신문 신춘문예 - 임채성

임채성 고요아침 2008 시조시학 Vol.- No.-

투과증발 분리막을 이용한 불산 폐액 내 원료물질 회수를 위한 농축 시스템

임채성,정윤영,이성수,심재훈,최승규,주천 한국폐기물자원순환학회 2018 한국폐기물자원순환학회 학술대회 Vol.2018 No.05

반도체 산업에서 발생되는 고농도 폐액은 반도체 세정액으로 초고순도의 산용액을 사용하기 때문에 폐액이라고 하여도 일반 공업용 산용액에 비해 농도가 매우 높은 편에 속한다. 특히 반도체업계를 포함한 IT산업의 급속한 발달로 인하여 불산페액 발생량이 증가하는 추세를 보이고 있다. 규모에 따른 발생량을 추정해보면 국내 반도체 업계에서 연간 15,000ton의 불산폐액이 발생되고 LCD업계와 태양광산업에서 발생되는 불산폐액을 합산하면 국내 발생량은 약 50,000ton 정도로 예상된다. 또한 성장성과 경쟁력으로 볼 때 투자/매출 증가에 따른 폐액 발생 증가분을 예측해보면 향후 5년 내 현재 발생량의 약 2배에 이르게 될 전망이다. 발생된 불산 폐액은 일반적인 생물학적 처리가 불가능하며 현재 물리화학적 처리를 통해서 처리하고 있으나 재활용이 어렵고 2차폐기물이 발생하여 실용성이 떨어진다. 본 연구는 이러한 문제점을 해결하기 위해 반도체 업체에서 발생하는 불산폐액을 분리막을 이용한 투과증발 공정을 통해 수분을 분리하고 불산의 농도를 3배(약 20%, w/w)이상으로 농축을 가능케 하여 폐수 처리에 대한 부담을 줄였으며, 불산폐액에 포함된 이물질을 제거하기 위해 전처리로써 Activation Carbon과 제올라이트를 이용한 흡착법, Struvite 결정화 공법, 암모니아 stripping, 이온교환법을 이용하여 불산폐수 내 포함된 이물질의 제거를 꾀하였다.

일중 시간에 따른 고등학교 학생의 생물 학업성취도 변화

임채성,김재영,장남기 韓國生物敎育學會 1993 생물교육 Vol.21 No.1

To identify whether biology achievements change with the lime-of-day or not, we analyzed their scores, The classes were divided into morning/afternoon and boys/girls groups. Boys' achievements showed morning superiority, and the girls' showed afternoon superiority. In low- and average-achievement groups these patterns were similar to those of whole classes. These trends coincided with those of changes of verbal and arithmetic thinking abilities with the time-of-day. However, in high-achievement groups both boys' and girls' achievements showed morning superiority. These results suggest. that the chages of cognitive abilities with time-of-day should be carefully considered in time scheduling and in the designing and implementation of science instruction.

중동철도에서의 사업전개와 경영실태-아사다 마사후미(麻田雅文)의 『中東鉄道経営史:ロシアと「満州」1896-1935』를 읽고-

임채성 만주학회 2013 만주연구 Vol.- No.16

초등학교 학생의 인지양식과 자연과 학업성취도와의 관계

임채성 부산교육대학교 과학교육연구소 1995 科學敎育硏究 Vol.20 No.-

As a basis for the efficient teaching in elementary school science, the relationships between cognitive style(field-dependence) and science achievements with both sex of learners, and the variance explained by cognitive style and sex were investigated. The findings indicate that the intercorrelations between cognitive style, school science achievement and sex showed the general trend of which the higher the desembedding ability(analytical thinking) of learners, the higher scores in science subjects. If the intelligence variable was statistically controlled, field-dependence still significantly correlated with science achievements. Also, achievements in science showed significant differences between the higher, average, and lower groups in field-dependence levels. The differences of science achievements in both sex were significant, and there were interaction effects for the variance explained by sex and cognitive style. The results suggest that the field-dependence may be related to the cognitive functions involved in learning science, therefore the further research of teaching methods and learning strategies should be encouraged in relation to this factor.

자연과 수업시 교사가 아동에게 제공하고 있는 뇌친화적 요소에 관한 연구

임채성,김병철,류양순,이영아 부산교육대학교 과학교육연구소 1999 科學敎育硏究 Vol.24 No.-

Educational practices should be based on the sound information about the structure and function of human brain. Recently, with the result of advancement in technology, inner workings of our brain were sufficiently accumulated to actually apply to the educational practices. The eight brain-compatible elements suggested by Kovalik & Olsen(1994) were based on these knowledge about brain. This study was undertaken with the purpose of providing insights into science teaching-learning based on the brain-compatible elements derived from several brain-based learning principles. To accomplish this purpose, we explored how the elements were provided to children by teachers in science instruction. The results as follows. The levels of appreciation of the elements by teachers were high. Especially, the appreciation element of cooperation in science teaching was relatively higher than those of others. Furthermore, they had attitudes to have children relate the science subject to their real lives. For one particular element, that is, enriched environment, it was found to be relatively less appreciated, probably because of the lack of resources such as books, videos, CD, pictures, regularly scheduled guest speakers, and the others to support science contents. These findings provide a basis for understanding the roles of the brain-compatible elements in learning science. The results also highlight the need for teachers to aware of and implement the elements to create environments which encourage the maximization of the brain potentials of children when teach science subjects.

아동이 지각한 감성 상태와 과학 학습과의 관계

임채성,오윤화 부산교육대학교 과학교육연구소 1999 科學敎育硏究 Vol.24 No.-

To investigate the relationship between emotional states of children and science learning, we analyzed the memories of school science with regard to the emotional states of them. Seventy seven sixth graders' memories on the science instruction which they have received so far were discerned through a questionaire and interviews. The emotional states of the children were divided into two, that is, the positive and negative states. The children's responses were categorized into the amount of memory, content and learning methods, and the reasons why them perceived as positive or negative. The results as follows. First, in the quantitative aspect, it was found that the science learning experiences perceived as positive sere much more effective than those of perceived as negative. In the qualitative aspects, more science concepts were formed from the learning at the positive emotional states than those at the negative states, furthermore, it was found that in associating their learning with the processes they performed, the former was more effective. Second, for the reasons why they perceived the science learning experience as positive, the factors associated with processes of learning were most typical, and in those of perceived as negative the factors related to the learning materials were most prominent. For both of positive and negative emotional states, personal factors showed to get a second priority. Finally, for the characteristic ways of science learning in both of emotional states, Experimentation was typical method which provided children the joyfulness of physical activities and new curiosity, also it was shown to be most preferred activity by the children. While, the learning method which most probably perceived as negative emotional states by children was Observation. The reasons for the method contained the learning materials they dislike and the limitation of time. In general, the learning activities performed alone, static activities, and activities felt as routine or meaningless to children were all significantly contributed to the negative emotional states of learners. These findings provide a basis for understanding the roles of emotion in learning science. The results also highlight the need for teachers to provide experiences and to create environments which encourage the positive emotional states of learners when teach science subjects.

The difference in the dose of vasoactive drugs and rocuronium according to the general anesthesia method during open gastrectomy

임채성,신용섭,윤석화,이정언,윤희석,오민혜 대한마취통증의학회 2013 Anesthesia and pain medicine Vol.8 No.2

Background: Recently, balanced anesthesia (BA: halogenated volatile anesthetics + remifentanil) has been useful for abdominal surgery. The authors therefore performed a retrospective study about the difference in the dose of vasoactive drugs and rocuronium according to the general anesthesia type. Methods: BA was compared with inhalational anesthesia (IA:halogenated volatile anesthetics + N2O) and total intravenous anesthesia (TIVA: propofol + remifentanil). The records of a total of 415 patients (IA : TIVA : BA = 126 : 157 : 132) who received open gastrectomy between 2004 to 2010 were analyzed. The types of vasoactive drugs and dosage as well as infusion time were calculated. The total amounts of vasoactive drugs were scored by two different methods. Infusion drugs were scored as 30 points,whereas bolus drugs were scored as 5 points. Drug score is the total sum of each score, where each drug score point split either into Plus or Minus. Plus means raising the blood pressure whereas Minus means the opposite. For rocuronium dosage, a total of 286patients (IA : TIVA : BA = 89 : 78 : 119) who met the criteria were enrolled, and this formula was used (total rocuronium/weight/time,μg/kg/hr). Results: The BA group showed a lower (P = 0.01) Minus score (1.8 ± 4.0) compared to the IA group (3.6 ± 5.2). Less amount of rocuronium (P = 0.001) was administered in the BA (327 ± 72μg/kg/hr), compared to the IA (368 ± 93 μg/kg/hr) and TIVA (356± 81 μg/kg/hr). Conclusions: BA seems to require less hypotensive agent and rocuronium compared with IA and TIVA for open gastrectomy. But,well-designed prospective studies are required.

초등 과학영재를 위한 심화형 교수학습 자료의 개발 : 생명 영역을 중심으로 On Life Areas of Science

임채성 부산교육대학교 과학교육연구소 2004 科學敎育硏究 Vol.29 No.-

In this study, to explore the ways of effective and desirable development of teaching and learning materials for elementary science gifted, related research results were critically examined and integrated, then a theoretical background was established and specific materials in Life Areas of elementary science was developed. The results could be summarized as follows: (1) The types of educational programs for the science gifted were categorized and defined as 'General-Level', 'Early-Growing, Fast-Growing General Level', and 'Slow-Growing Enrichment, Excellence' Types. (2) For 5th graders, in unit of 'Environment and Living Organisms', some activities of Excellence Type for subject an 'Changes of Living Organism with Temperature' were developed and their ways of using and assessment were presented. On the basis of these results, several educational implications for further research and ways of applying to the science gifted education were discussed.

최근 30년간 스포로트리쿰증 임상 병형의 추세에 대한 관찰

임채성,권경술,장호선,정태안,오창근 대한의진균학회 1997 대한의진균학회지 Vol.2 No.1

Background: The clinical types of sporotrichosis are generally classified into four group: lymphocutaneous, fixed cutaneous, and cutaneous disseminated, and hematogenous. Of these, the lymphocutaneous variety is the most frequently encountered pattern, constituting 80% of sporotrichosis patients and the fixed cutaneous sporotrichosis is the next. Potassium iodide (KI) was the most commonly used drug for the treatment of sporotrichosis. Many studies about these clinical findings of sporotrichosis have been reported, but comparative study on the changes in clinical findings has not been reported. Objective: The purpose of this study is to clarify the changes of the clinical findings in sporotrichosis in Korea. Methods: A total of 58 patients with sporotrichosis who had visited the Department of Dermatology, Pusan National University were divided into 2 groups according to the period and then the clinical findings of sporotrichosis were compared. Results: The results of study are summarized as follows: 1. During this period, there were 58 cases of sporotrichosis. In the past period (1967~1979) there were 35 cases of sporotrichosis, and there were 23 cases in the recent period (1980~1997) 2. In the past period, most cases (71.4%) were lymphocutaneous type, however in the recent period, most cases (69.2%) were fixed cutaneous type. 3. The most commonly affected site was right upper extremity in the past period, but face fright upper extremity were the most commonly affected sites in the recent period. 4. In the past period, 2nd and 3rd decades were prevalent age group, but 5th to 7th decades were prevalent age group in the recent period. 5. In the treatment of sporotrichosis, potassium iodide (KI) was the choice of treatment in the past period, however itraconazole is gradually used in the recent period. Conclusion: According to this study, many changes in clinical findings of sporotrichosis were noted, especially in the clinical type. We found that clnical type of sporotrichosis changed from lymphocutaneous type to the fixed cutaneous type with time. And we suggest that further observation would be necessary to define the meaning of these changes.