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부영양호수의 수질개선을 위한 인산염의 불활성화에 관한 연구 ( 대청댐 수질개선을 중심으로 )
배정옥,김홍겸,김도한,전상호,김휘중 ( Jeong Ok Bae,Hong Kyeom Kim,Do Han Kim,Sang Ho Jun,Hwe Joung Kim ) 한국하천호수학회 1994 생태와 환경 Vol.27 No.3
Jar tests have been accomplished for the application of phosphorus inactivation technique as a lake restoration measure in lake Daechung which was suffered prolonged algal bloom. The time of treatment, the efficiency of treatment to remove phosphorus from the water column and to control the phosphorus-release from the sediments are discussed. The optimum time for the treatment with alum in Lake Daechung would be somewhere between the end of draining and the beginning of the increase of dissolved phosphorus in the lake. Recommended Al/P molar ratio of the treatment Lake Daechung water at time of the experiment would be 18. Treatment of Lake Daechung water with alum by Al/P molar ratio of 18 brought about 50% reduction of total phosphorus in water column and led about 0.01mg/l of total phosphorus which is the criteria for the oligotrophic level of the lake water. Treatment of the lake water with 5mg Al/l to control the release of phosphorus from the sediment showed significant decreases of total phosphorus in the water column, and the efficiency to control the release of phosphorus from the sediment could be significant in aerobic and anaerobic condition. Phosphorus inactivation technique as a lake restoration measure in Lake Daechung would be effective in case it was employed as a part of overall restoration program.
아동의 얼굴표정에 대한 예비교사의 정서인식 : 인종에 따른 차이를 중심으로
정정희(Chung, Chung-hee),배정옥(Bae, Jung-ok),최성묵(Choi, Sung-mook),정효진(Jeong, Hyo-jin),이지연(Lee, Ji-yeon),이효림(Lee, Hyo-rim) 한국어린이문학교육학회 2022 어린이문학교육연구 Vol.23 No.1
본 연구는 아동의 얼굴표정에 대한 예비교사의 정서인식을 인종에 따른 차이를 중심으로 살펴보았다. 연구목적 수행을 위해 유아 · 초 · 중등 예비교사 405명을 대상으로 하였으며, 연구도구로는 Schultz, Izard, & Bear(2004)가 개발한 ACES(Assessment of Children"s Emotion Skills)와 한국판 ACES 의 얼굴표정 섹션에 제시된 아동얼굴표정을 사용하였다. 연구결과, 예비교사들의 한국아동과 외국아동에 대한 얼굴표정 인식의 정확성과 정서강도 인식은 인종에 따라 차이가 있었으며 정서유형별로도 차이가 있는 것으로 나타났다. 예비교사들의 한국아동의 정서인식 정확도가 외국 아동에 비해 높은 것으로 나타났으며 정서강도의 경우, 한국아동에서는 기쁨과 슬픔이, 외국아동의 경우 분노와 공포가 강하게 표출되는 것으로 인식하였다. 정서유형별로는 기쁨을 가장 정확히 인식하고 공포 정서에 대한 인식 정확도가 가장 낮은 것으로 나타났다. 이러한 결과를 통해 교사교육에서 아동들의 얼굴표정을 통한 정서인식의 중요성을 강조하고, 인종에 따른 교사의 정서인식에 대한 내용을 포함시키는 것이 필요하다는 시사점을 얻을 수 있다. The present study investigated the emotion recognition of preservice teachers for children’s facial expressions, focusing on differences according to race. For this purpose, data were collected and analyzed from 405 preservice teachers of early childhood, elementary, and secondary schools using the initial version of ACES developed by Schultz, Izard., & Bear(2004), and the Korean version of ACES. The results showed that preservice teachers’ recognition of children’s emotional facial expressions differed according to race. The recognition accuracy scores for Korean children were significantly higher than those of foreign counterparts. In terms of emotional type, the participants showed the highest accuracy scores for ‘joy’ and the lowest for ‘fear.’ Given the centrality of emotional facial expressions in educating young learners, the current findings have important bearing on preservice teacher education.
강명규,배정옥,이기종,이영하 忠南大學校環境問題硏究所 1993 環境硏究 Vol.11 No.-
To investigate the microfloral composition in activated sludge, more than six hundred bacterial and fungal strains isolated from influent sewage, return sludge and aeration tank of an activated sludge sewage treatment plant were identified to the genus level. During the holding period in the aeration tank development of diverse heterotrophic microbial populations occurred and bacterial and fungal numbers in the aeration tank were 10- to 100-fold higher than in the influent sewage and return sludge. A large number of Gram-negative rods, particularly Pseudomonas, Flavobacterium, Enterobacter, Klebsiella, and Alcaligenes were found to be the dominant genera in the aeration tank. The species of filamentous fungi Trichoderma, Aspergillus, Rhizopus and Lepiomitus, and various yeasts were frequently associated with activated sludge. The most commonly found yeast genera were Candida, Geotrichum, Saccharomyces, Torulopsis and Rhodotorula.