생물막 공정에서 내부 반송율 변화에 따른 생물학적 제거특성

全太誠,延翼俊 충주대 산업과학기술연구소 2000 産業科學論文集 Vol.8 No.-

Removal total nitrogen and total phosphorus in the wastewater is very difficult these days. This study was conducted to investigate the contaminants removal efficiency and the optimal operating parameters by the internal recycle rate(IRR) in the combining A2/O process with fixed film. The average removal efficiency of BOD and COD was 92.5%∼94.6%, 73.9%∼87.0% in RUN 1 and 91.9%~94.7%, 77.7%∼89.0% in RUN 2, respectively. Organic removal efficiency, at two different hydraulic retention time of 10 and 14hr, was similar. At 50% of the internal recycle rate, organic removal officiency was somewhat higher than the other. Total nitrogen(T-N) and total phosphorus(T-P) were removed, highly, at 50% of internal recycle ratec. It could be suggested by this study that the optimum internal recycle rate is 50% and hydraulic retention time is 14hr.

주요 엽채류의 가식부위내 NO₃- 함량에 관한 연구

전하준,조익환 대구대학교 과학기술연구소 1995 科學技術硏究 Vol.2 No.2

This Study was to conduct to investigate the variations of NO₃- content in the leaf lettuce depending on the amounts of fermented poultry manure and growth conditions, and to examine the accumulation of NO₃- in the edible parts of major vegetable crops which on the market. The results are as follows 1. As the amounts of fermented poultry manure increase, the accumulation of NO₃- in the leaf lettuce increase under the lower light density. 2. Although the NO₃- contents in the welsh onion(24ppm) and Chinese chieves(133ppm) on the market showed somewhat low, the NO₃- content in the pepper leaf, Japanese parsley, sinsuncho, sesame leaf showed high, respectively 1250ppm, 1260ppm, 1386ppm, and 1400ppm. 3. The NO₃- contents in the leaf lettuce and kale on the market showed high except being cultivated at the field(790ppm). Especially the kale by organic farming(6785ppm) and hydroponic leaf lettuce(6500ppm) showed very high NO₃- content.

축구 활동이 비만 초등학생의 혈중 지질에 미치는 영향

전태원,박익렬,엄우섭,이동기,우재홍,김경래,김은경,서한교,전병환,김광준,정진욱,박성태 서울대학교 체육연구소 2002 서울大學校 體育硏究所論集 Vol.23 No.2

The purpose of this study is to investigate the effect of Soccer playing in Plasma Lipids in Elementary Obesity Student. Subject for this study were consisted of 16 male(exercise group : 8, non-exercise group : 8), who were over 25% of body fat. Exercise group played soccer 3 times per week, one time was 90 minutes. Weight, % body fat, total cholesterol, high density lipoprotein cholesterol, low density lipoprotein cholesterol, triglyceride, c-ratio were measured at three time periods before exercise begin, and 5 and 8 weeks. The results were summarized as follow: Exercise group decreased significantly more than non-exercise group about weight, % body fat, total cholesterol, low density lipoprotein cholesterol, triglyceride, c-ratio. And Exercise group increased significantly more than non-exercise group about high density lipoprotein cholesterol. In conclusion, the regular aerobic exercise(soccer playing) for 10 weeks has great effects on control of serum lipid which is related to the increase well-being(reduced coronary heart disease, hyperlipidemia, hypertension, obesity et all.) in elementary obesity male student.

지렁이분립과 커피찌거기의 혼합상토가 케일유묘의 생육에 미치는 영향

전하준,조익환 대구대학교 과학기술연구소 1996 科學技術硏究 Vol.3 No.1

This study was carried out to find the effects of the mixtures of earthworm cast and coffee lees as a vegetable plant growth medium on the growth of hale seedlings. The mixed ratios of earthworm cast and coffee lees were 100:0, 75:25, 50:50 25: 75 and 0:100%. The results of the study are as follows: 1. The hydrogen ion concentration(pH) was recorded 7.54 in nursery soil with 100% of earthworm cast treatment, but the lower mixed ratios of earthworm cast in nursery soil were, the more it fell down. Thus, pH in 100% of coffee lees treatment and commercial plant growth medium as control treatment was showed 5.68 and 5.80, respectively. 2. The nursery sorb with 100% of earthworm cast was generally higher than treatment of the others in shoot dry weight per plant. The shoot dry weight per plant was also high in the control treatment except 3rd week, but there was no significant between the control treatment and the treatment including 75% of earthworm cast and of 25% of coffee lees. 3. As growth stages were developed, the plant iength(cm), number of leaves and diameter of stem of kale seedling were increased in all treatments. Especially, it was clear in 100% of earthworm cast treatment. In the meanwhile, the plant Iength(cm), number of leaves and the diameter of stem in the control treatment were higher than those of in treaments consisting both of 75:25 and 50:50(%) of mixing ratios with earthworm cast to coffee lees in the early growth, but in the latter growth in the mixture of 75% of earthworm cast and of 25% of coffee lees was showed a similar tendency to the control treatment.

[논문]보육교사의 보육컨설팅에 대한 인식, 요구도 및 활성화 방안

황해익,조준오,김병만 부산대학교 교육연구소 2012 교육혁신연구 Vol.22 No.1

The purpose of this study was to examine the awareness of childcare teachers on childcare consulting, their needs for that and ways of revitalizing childcare consulting in a bid to lend professional assistance to childcare centers in terms of how to boost the quality of childcare. And it's also meant to provide some information on how to improve childcare consulting both in theory and practice. The subjects in this study were 200 childcare teachers in the city of Busan. The findings of the study were as follows: First, as a result of analyzing their awareness of childcare consulting, 147 respondents (87.5%) considered that to be necessary or very necessary. As for the reason for the necessity of childcare consulting, the biggest group that numbered 62 responded (42.2%) that it would be necessary to pinpoint and resolve problems. Concerning the reason why it's not necessary, the largest group that numbered four answered (19.1%) that there was no problem about which childcare consulting would be required. Second, as a result of checking their needs for childcare consulting, the biggest group that numbered 35 asked (20.8%) for education about accreditation indicators in terms of the content of childcare consulting. Regarding childcare consultants, the biggest group that numbered 55 preferred (32.7%) professional assistants, lecturers and professional personnels of childcare centers. Concerning the term of childcare consulting, the largest group that numbered 71 considered (42.3%) it advisable to receive this consulting for less than a week. As to the time for childcare consulting, the biggest group that numbered 58 answered (34.5%) that it should be provided at the request of accredited childcare centers. Third, as a result of analyzing their opinions on how to revitalize childcare consulting, the biggest group that numbered 128 felt (76.2%) the need for a separate consulting institution. The largest group that numbered 30 thought (23.4%) that the Ministry of Health and Welfare should be responsible for that, and the greatest group that numbered 76 thought (45.2%) that the top priority for childcare consulting would be to secure professional childcare consultants. 본 연구는 보육교사의 보육컨설팅에 대한 인식과 요구도 및 활성화 방안을 확인하여 어린이집의 개별적인 질적 수준 관리 및 지속적인 질 향상에 전문적이고 체계적인 도움을 제공하고, 향후 보육컨설팅의 개념적․실제적 측면을 보완하는 데 기초자료로 활용하는 것에 연구의 목적이 있다. 본 연구는 부산광역시에서 근무하는 보육교사 200명을 연구대상으로 선정하였고, 회수된 설문지 중 총 168부를 최종 분석대상으로 선정하였다. 연구결과를 살펴보면 첫째, 보육컨설팅에 대한 인식을 살펴본 결과 보육컨설팅이 ‘필요하다’와 ‘매우 필요하다’가 총 147명(87.5%)으로 높게 나타났고, 필요한 이유로는 ‘문제진단 및 현안해결’이 62명(42.2%), 불필요한 이유는 ‘보육컨설팅을 필요로 하는 문제가 없기 때문에’가 4명(19.1%)으로 가장 높게 나타났다. 둘째, 보육컨설팅에 대한 요구도를 살펴본 결과 보육컨설팅 내용에 서는 ‘평가인증 지표 교육’이 35명(20.8%), 대상은 ‘조력전문가, 강의, 센터전문요원’이 55명(32.7%), 보육 컨설팅 실시기간은 ‘1주일 미만’이 71명(42.3%), 보육컨설팅 실시 시기는 ‘평가인증을 통과한 어린이집의 요청 시’가 58명(34.5%), 보육컨설팅 지도방법은 ‘원장, 교사 상호작용 및 의견 교환’이 69명(41.1%)으로 가장 높게 나타났다. 셋째, 보육컨설팅에 대한 활성화 방안을 살펴본 결과 전담기관의 필요성은 ‘필요하다’가 128명(76.2%), 전담부서는 ‘보건복지부’가 30명(23.4%), 보육컨설팅 활성화를 위해 가장 필요한 과제는 ‘전문성을 갖춘 보육컨설턴트의 확보’가 76명(45.2%)으로 가장 높게 나타났다. 끝으로 본 연구에 서는 보육교사의 보육컨설팅에 대한 인식과 요구도 그리고 활성화 방안을 토대로 중요성과 필요성을 논의하였다.

바닥재와 하·폐수 슬러지를 첨가한 점토벽돌제조와 환경안정성 평가

연익준 忠州大學校 2010 한국교통대학교 논문집 Vol.45 No.-

This study is to develop a recycling method for coal ash (bottom ash) and sludge as materials for fabricating clay bricks. In the experiment, the bottom ash used as supplementary material with clay and sewage sludge added as a blowing agent. Characteristics for manufactured clay brick depend on various conditions such as mixture ratio, calcination temperature and time. The results showed that the calcination temperature and time were enough to satisfy the Korean Standard of clay brick at 1150℃ and 1hr, respectively. The compressive strength and water absorption under 9:1 (clay : wethered granite) were 41.0 N/mm2 and 7.4%, which correspond with 1st grade brick standard. When sewage sludge added as blowing agent to fabricate light weight clay brick, the the value of compressive strength and water absorption were 11.12 N/mm2 and 14.5%, which is applicable to 3rd grade brick standard. The leaching test including KLT (Korea Leaching Test) and TCLP (Toxicity Characteristic Leaching Procedure) applied to assessment environmental risk caused by heavy metals. The results showed that concentration of leached heavy metals was lower than allowable level in KLT and TCLP.

경부 청소술 후의 승모근기능

박준명,박동식,정광익,이언석,노영수 大韓再活醫學會 1998 Annals of Rehabilitation Medicine Vol.22 No.2

폐지의 연료화를 위한 페이퍼로그의 제조

연익준 忠州大學校 2012 한국교통대학교 논문집 Vol.47 No.-

In this study, paper-log was manufactured using waste paper to investigate possibility of usage for fuel. To confirm the validity of usage for fuel, specification of manufactured paper-log for RDF(refused derived fuel) was examined and competitive price between paper-log and others was investigated. Also, quality of waste water generated from the process of manufactured paper-log was analyzed for estimating effects on environmental safety. From the results of specification test for RDF, the properties such as heat value and contents of chloride, Hg, Cd, Pb, As, water, ash and sulfur was satisfied with regulation levels of RDF. And the results of water quality generated from the process of manufactured paper-log showed a very low environmental impact. The possibility of usage for substitution of fossil fuels as an source of heating energy for camping and small scale heating seems to be sufficient.

운동부하양식에 따른 심폐 능력의 비교분석

전태원,우재홍,신창호,이기봉,이광희,박익렬,박성태,강현주 서울대학교 체육연구소 2000 서울大學校 體育硏究所論集 Vol.21 No.1

The purpose of this study this study was to comparative analysis the V02max and HR through arm ergometer exercise, bicycle ergometer exercise, and treadmill exercise and to propose correct data of aerobic ability according to GXT. Subjects for study were 8 healthy male students. The process of the test were performed maximal GXT on arm ergometer exercise, bicycle ergometer exercise, and treadmill exercise and measured V02max, max heart rate and recovery time of 3 VO2 and heart rate respectively. The conclusions were supported by the findings of this study: 1.There were significant differences between test style and V02/kg/min(p<.05). 2.There were significant differences between test style and test stage at heart rate(p<.05) There were no effect of reciprocal action. Therefore, V02/kg/min should be on individual exercise prescription guiedlines for health promotion should be provided proper GXT which are arm ergometer exercise, bicycle ergometer exercise, and treadmill exercise.

예견퍼지 알고리즘을 사용한 트럭-트레일러의 자율주차 제어 시스템에 관한 연구

손준익,박희경,박재현,강신출,임영도 東亞大學校 附設 情報通信硏究所 1999 情報通信硏究所論文誌 Vol.7 No.1

본 논문에서는 예견퍼지 알고리즘을 사용하여 트럭-트레일러의 자율주차 제어 시스템의 시뮬레이션을 행한다. 트럭-트레일러의 전·후진 동특성 방정식을 설정하여 예견퍼지 제어기의 설계시에 사용하고, 새상 시스템으로도 사용한다. 제안한 알고리즘으로 시뮬레이션을 통해서 일정 지역내의 임의의 출발점에서 적절한 도중목표를 설정하여 전후진을 하면서 핸들조작 횟수가 적게 최종목표 위치에 잘 주차됨을 입증하였다.