제주지역 청소년소비자의 용돈관리행동에 관한 연구

오다연 ( Oh Da-yeon ),김정숙 ( Kim Jeong-sook ) 한국금융소비자학회 2017 금융소비자연구 Vol.7 No.1

이 연구는 청소년소비자의 용돈관리행동에 영향을 미치는 요인들의 상대적 영향력과 인과적 효과를 분석하기 위하여, 제주지역 1~3학년 중학생 616명을 대상으로 설문조사를 실시하였으며, 분석결과는 다음과 같다. 첫째, 청소년소비자의 용돈관리행동은 용돈통장을 가지고 있는 청소년소비자가, 가계소득이 많을수록, 용돈 만족도가 높을수록, 부모·대중매체·학교와의 소비자사회화 수준이 높을수록, 용돈관리태도와 용돈관리기능이 높을수록 용돈관리행동을 잘하고 있었다. 둘째, 청소년소비자의 용돈관리행동에 가장 큰 인과적 영향을 미치는 요인은 용돈관리기능이였으며, 간접적으로 가장 큰 영향을 미치는 요인은 자아존중감이였다. 또한, 성별, 용돈통장 유무, 부모·대중매체·학교와의 소비자사회화는 용돈관리행동에 직접적인 영향뿐만 아니라, 용돈관리태도와 용돈관리기능을 통하여 간접적으로도 유의한 영향을 미치고 있었으며, 가계소득, 용돈관리 교육 필요성 인식, 자아존중감은 용돈관리행동에 직접적으로는 유의한 영향을 미치지 않았으나, 소비자사회화 작용인, 용돈관리태도와 용돈관리기능을 통하여 간접적으로는 유의한 영향을 미치고 있었다. 이상의 결과를 통해, 부모, 대중매체, 학교 등 소비자사회화 작용인과 용돈관리태도와 용돈관리기능은 청소년소비자의 용돈관리행동에 매개요인으로 작용하고 있음을 알 수 있다. This study intends to analyze the relative influence and causal effects of the factors that affects allowance management behavior in teenage consumers by surveying middle school students in Jeju region. The study’s results will provide reference material for identifying the spending patterns of teenage consumers in Jeju region and help develop a consumer education program to promote better allowance management behavior in teenage consumers. The data were collected from 616 7th to 9th grade students in middle schools across the Jeju region. For the analysis of the data, techniques such as frequency and percentage, t-test, ANOVA, multiple-range test by Sheffe, and a path analysis using the SPSS 18.0 program were utilized. The main findings of this study are as follows. First, the allowance management behavior of teenage consumers was better where teenage consumers had bank accounts, where the household income was higher than average, where the level of satisfaction with the allowance amount was high, where the level of consumer socialization with parents and school was high, and where a sound allowance management attitude and skill was present. Second, the factor that had the most causal effect on allowance management behavior was the skill in managing allowance, while self-esteem had the biggest indirect effect. In addition, gender, the presence of a bank account, and consumer socialization with parents, mass media and school had not only a direct impact on allowance management behavior but also had an indirect but significant impact through their effect on allowance management attitude and skill. Although household income, the awareness of the need for education of allowance management, and self-esteem did not have a direct significant impact on the allowance management behaviors of teenage consumers, these factors had an indirect significant impact on behavior through allowance management attitude and skill, which are consumer socialization factors. Such results showed that consumer socialization with parents, mass media and school and allowance management attitude and skill are all mediating factors in the allowance management behavior of teenage consumers.

완전분해와 전분해 방법에 의한 영산강,섬진강수계 퇴적물의 중금속농도 상관관계

오다연(Da Yeon Oh),최경균(Kyoung Kyoon Choi),허인애(In Ae Huh),황인성(In Seong Hwang),김영훈(Young Hoon Kim),허진(Jin Hur),신현상(Hyun Sang Shin),오정은(Jeong Eun Oh),신원식(Won Sik Shin),박정훈(Jeong Hun Park) 大韓環境工學會 2011 대한환경공학회지 Vol.33 No.1

본 연구에서는 완전분해와 전분해 전처리 방법에 따른 중금속 농도 사이에 대한 상관관계를 알아보고자 하였다. 영산강·섬진강 수계 하천 및 호소에서 총 43점의 퇴적물 시료를 채취하여, 두 방법으로 전처리하고 5성분의 금속(Cd, Cr, Ni, Pb, Zn)을 분석하였다. 전체적인 중금속의 평균농도는 Zn>Cr>Pb>Ni>Cd 순으로 나타났으며, 전분해 값은 완전분해 값의 35.0% (Cd), 53.8% (Cr), 66.2% (Ni), 64.4% (Pb), 76.4% (Zn)로 완전분해시 중금속 농도가 높게 나타났다. 호소의 중금속 농도가 하천의 농도보다 높게 나타났다. 완전분해와 전분해 농도 사이의 상관관계식을 구하였으며, 강한 상관관계를 가지는 것을 나타난 Zn 및 Ni의 경우 완전분해 농도가 증가할 경우 왕수에 의한 용출농도도 같이 증가하는 것으로 나타났다. 나머지 중금속들에서도 두 분해법에 의한 퇴적물의 중금속농도 사이에 보통이상의 선형상관관계가 있는 것으로 나타났다. 본 연구결과는 퇴적물의 불균질성으로 인해 제한적으로 응용될 수 있을 것으로 판단된다. In this study, the correlations of concentrations in sediment heavy metals between two pretreatment methods, total digestion and aqua regia digestion, have been investigated. Total 43 samples had been collected from streams and lakes in Yeongsan and Seomjin watersheds. They were decomposed in two pretreatment methods and five metal components (Cd, Cr, Ni, Pb, Zn) were analyzed. Overall average concentrations of heavy metals were Zn>Cr>Pb>Ni>Cd in the order. The concentrations of aqua regia digestion were 35.0% (Cd), 53.8% (Cr), 66.2% (Ni), 64.4% (Pb) and 76.4% (Zn) of the concentrations of total digestion and heavy metal concentrations of total digestion were higher. Heavy metal concentrations in sediments from lakes were higher than those from streams. The correlation equations between the concentrations of total digestion and aqua regia digestion were obtained. The concentrations of Zn and Ni, which showed strong linear correlations, increased in aqua regia digestion as the concentration in total digestion increased. The linear correlation coefficients between two digestion methods for most analyzed metals were above the average correlation. However, these results can be applied with limitations due to heterogeneity of sediments.

크론병의 드문 합병증: 급성 간문맥고혈압으로 발현한 간문맥 및 상장간막정맥 혈전증

오다연 ( Da Yeon Oh ),정혜경 ( Hye Kyung Jung ),권경주 ( Kyoung Joo Kwon ),류재인 ( Jae In Ryu ),손명은 ( Myung Eun Song ),유권 ( Kwon Yoo ),문일환 ( Il Hwan Moon ) 대한내과학회 2013 대한내과학회지 Vol.84 No.5

염증성 장질환의 전신 합병증 중 혈전색전증은 흔하지 않은 합병증이나 일단 발생하면 혈관합병증뿐 아니라 염증성 장질환을 악화시켜 사망률이 높은 것으로 알려져 있다. 궤양성 대장염에서 혈전색전증은 국내에서도 몇몇 증례가 보고되었으나 크론병에서 과응고성으로 인한 혈관 합병증의 사례는 극히 드물다. 저자들은 42세 일란성 남자 쌍둥이 형제에서 크론병이 발병하여 관해 상태를 유지하던 중 형에게 복수와 말초부종이 발생하여 혈액응고 장애와 동반된 간문맥 및 상장간맥 혈전증이 진단되어 조기에 항응고제 치료를 하고 호전된 증례를 경험하여, 기존의 국내에 보고되었던 문헌과 함께 보고한다. Thromboembolic events are rare among systemic complications of inflammatory bowel disease; however, they are a significant cause of mortality when they occur. Several reports have considered thromboembolic events in patients with ulcerative colitis presenting with venous or arterial thromboembolism, such as cerebral thrombosis, deep vein thrombosis, pulmonary thromboembo-lism, portal vein thrombosis, or mesenteric vein thrombosis. However, increased coagulability related to Crohn`s disease is extremely rare compared with that of ulcerative colitis. We report a case of a 42-year-old man with complicated portal hypertension that occurred due to extensive portal vein and mesenteric vein thrombosis. He had a monozygotic twin brother who was also in re-mission with Crohn`s disease. The patient showed protein C and protein S deficiencies; however, he recovered with early anti-coagulation therapy. (Korean J Med 2013;84:713-717)

Non-Word Repetition and Sentence Repetition Performance in 2–3 Years Old Late Talkers and Normal Children

오다연(Da Yeon Oh),임동선(Dongsun Yim) 한국언어청각임상학회 2013 Communication Sciences and Disorders Vol.18 No.3

배경 및 목적: 본 연구는 2-3세 말 늦은 아동과 정상 아동을 대상으로 비단어따라말하기와 문장 따라말하기 수행 능력 및 다양한 변인들 간의 관련성을 살펴보고자 하였다. 방법: 2-3세 말 늦은 아동과 정상 아동 각각 20명씩, 총 40명으로 하였다. 말 늦은 아동과 정상 아동의 비단어따라말하기 수행 능력과 문장 따라말하기 수행 능력 알아보기 위해 이원혼합분산분석(two-way mixed ANOVA)를 실시하였고, 각 집단에서 비단어따라말하기, 문장 따라말하기와 다양한 변인들(생활연령, 수용어휘력검사 점수, 자음정확도)과 상관관계를 알아보기 위해 Pearson 적률상관계수를 구하여 측정하였다. 결과: 첫째, 비단어따라말하기는 두 집단 간 통계적으로 유의하지 않았지만 두 집단 모두 음절길이가 길어질수록 수행률이 저조하여 통계적으로 유의한 차이를 보였다. 문장 따라말하기는 두 집단 간 통계적으로 유의한 차이를 보였으며, 두 집단 내 구문적 난이도에 따라 통계적으로 유의한 차이를 보였다. 다양한 변인들 중 정상 아동의 경우 생활연령과 문장 따라말하기 능력이 비단어따라말하기 수행과 유의한 상관을 보였으며, 말 늦은 아동의 경우에는 자음정확도와 문장 따라말하기 능력이 비단어따라말하기 수행과 유의한 상관을 보였다. 논의 및 결론: 본 연구를 통하여 문장 따라말하기에서만 말 늦은 아동을 선별할 수 있어, 비단어따라말하기보다 문장 따라말하기가 더 민감하게 말 늦은 아동을 선별할 수 있는 선별 검사도구임을 확인할 수 있었다. Objectives: The purposes of this study were to compare the non-word repetition and sentence repetition performance in late talkers compared to normal children, and to investigate the correlation among non-word repetition, sentence repetition and various other factors. Methods: A total of 40 children composed of 20 late talkers aged from 2 to 3 years old and 20 normal children participated in this study. Results: The results were as follows: a 2-way mixed ANOVA result at each syllable length showed that there was no significant difference on the non-word repetition performance between late talkers and normal children. However both group exhibited a word length effect: as the length of non-words increased, children's performance (percent accuracy of repeating non-words) decreased. On the sentence repetition task, normal children significantly outperformed late talkers. Correlation analysis showed that the non-word repetition performance was significantly correlated with chronological age and sentence repetition performance in normal children. However, in late talkers the non-word repetition performance was significantly correlated with the percent of correct consonant on a standardized articulation test and sentence repetition performance. Conclusion: These results suggest that the sentence repetition performance may be more reliable than the non-word repetition task for accurately identifying late talkers.

소석회, 포틀랜드 시멘트, FeCl₃·6H₂O, NaOH를 이용한 비소 오염토양의 안정화

문덕현,오다연,이승제,박정훈,Moon, Deok-Hyun,Oh, Da-Yeon,Lee, Seung-Je,Park, Jeong-Hun 한국환경농학회 2010 한국환경농학회지 Vol.29 No.1

본 연구에서 비소로 오염된 토양에 함유된 비소를 안정화시키기 위하여 4종류의 안정화제를 이용 처리하여 다음과 같은 결론을 얻었다. 안정화 처리에 사용된 오염토는 약알칼리성을 띄고 있으며, 입도분포 결과 사토계열이였고 57.5%의 비소가 무정형 및 비결정형 철/알루미늄 수산화물형태로 존재했다. 안정화 실험 결과 소석회/포틀랜드시멘트 혼합 안정화처리가 모든 안정화 처리와 비교 했을 때 현저한 우의를 보였으며 총 함량 30%로 토양오염 우려기준 20 mg/kg('나'지역)을 통과 하였다. 소석회/$FeCl_3{\cdot}6H_2O$ 혼합 이용시 효율적인 비소 저감효과룹 기대할 수 없었으며 소석회/NaOH는 효과적이었으나 소석회/포틀랜드시멘트 보다는 효율성이 제한적 이였다. 소석회/포틀랜드시멘트 혼합 안정화 처리 후 연속추출결과는 처리 전 오염토와 비교했을 때 특이적 흡착과 잔류대의 증가를 보였다. 특히 25wt%+10wt% 처리 시료에서 잔류태의 증가는 2배가 넘어 (16%에서 35.7%) 매우 안정적인 비소 존재 형태를 보여 비소 용출농도 저감에 현저하게 기여한 것으로 판단된다. The purpose of this study was to investigate the effectiveness of a stabilization treatment for As contaminated soil. A combination of hydrated lime, Portland cement, $FeCl_3{\cdot}6H_2O$, and NaOH were used as stabilizing agents. The effectiveness of stabilization treatment was evaluated by the Korean Standard Test (KST) method (1N HCl extraction). Sequential extractions were performed to investigate the As distribution after treatment. Following the application of the treatment, curing periods of up to 7 and 28days were investigated. The experimental results showed that a combination of hydrated lime/Portland cement was more effective than treatments of hydrated lime or Portland cement at immobilizing As in the contaminated soil. The treatment of 25wt% hydrated lime and 5wt% Portland cement was effective in reducing As leachability less than the Korean warning standard of 20 mg/kg. However, the treatments of hydrated lime and Portland cement failed to meet the Korean warning standard even when up to 30 wt% was used. The treatment utilizing hydrated lime and $FeCl_3{\cdot}6H_2O$ was not effective in properly reducing As leachability. The addition of $FeCl_3{\cdot}6H_2O$ was negative in terms of pH condition. Moreover, the treatment with hydrated lime/NaOH was effective in reducing As leachability but not as much as hydrated lime/Portland cement. The sequential extraction results indicated that the residual phase was greatly increased upon the treatment of hydrated lime/Portland cement. It was concluded that the hydrated lime/Portland cement treatment was the best among the other combinations studied at achieving trace As concentrations.

영산강.섬진강 유역 수계 폐금속광산 광해 영향 평가를 위한 개황조사

최경균,박하승,오다연,김갑순,허유정,박정훈,Choi, Kyoung-Kyoon,Park, Ha-Seung,Oh, Da-Yeon,Kim, Kap-Soon,Huh, Yu-Jeong,Park, Jeong-Hun 한국지하수토양환경학회 2010 지하수토양환경 Vol.15 No.6

In this study, primary investigation for evaluation of abandoned metal mine effect on watershed has been done. 64 abandoned mines have been selected for primary investigation through literature and field survey. 216 soil and 90 water samples were collected and metal pollution concentrations were analyzed. 24 mines have mine water in the pits and acid water below pH 5 was not observed. Soils from 35 mines were over the soil basis of concern and 16 mines were over the soil basis of action. Arsenic average concentration was 188 times of average concentration of the natural background. Drinking water samples from 3 mines were over the drinking water standard and surface water samples from 12 mines were over the river water standard. Integrated pollution index, which was resulted from the integration of field survey, soil and water pollution concentration, showed that, abandoned metal mines had affected on watershed greatly in the order of Samgeum, Daedeok, Cheongdalgeum, Heungsin, Yeongdae and Myeongbong mines.

금강수계 퇴적물 중금속 농도 분포 특성

양윤모 ( Yun Mo Yang ),오다연 ( Da Yeon Oh ),간종범 ( Jomg Beom Khan ),이준배 ( Jun Bae Lee ),홍선화 ( Seoun Hwa Hong ),이수형 ( Soo Hyung Lee ) 한국물환경학회(구 한국수질보전학회) 2014 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2014 No.-

연구보문 : 환경화학 ; 소석회, 포틀랜드 시멘트, FeCl3,6H2O, NaOH를 이용한 비소 오염토양의 안정화

문덕현 ( Deok Hyun Moon ),오다연 ( Da Yeon Oh ),이승제 ( Seung Je Lee ),박정훈 ( Jeong Hun Park ) 한국환경농학회 2010 한국환경농학회지 Vol.29 No.1

The purpose of this study was to investigate the effectiveness of a stabilization treatment for As contaminated soil. A combination of hydrated lime, Portland cement, FeCl3·6H2O, and NaOH were used as stabilizing agents. The effectiveness of stabilization treatment was evaluated by the Korean Standard Test (KST) method (1N HCl extraction). Sequential extractions were performed to investigate the As distribution after treatment. Following the application of the treatment, curing periods of up to 7 and 28days were investigated. The experimental results showed that a combination of hydrated lime/Portland cement was more effective than treatments of hydrated lime or Portland cement at immobilizing As in the contaminated soil. The treatment of 25wt% hydrated lime and 5wt% Portland cement was effective in reducing As leachability less than the Korean warning standard of 20 mg/kg. However, the treatments of hydrated lime and Portland cement failed to meet the Korean warning standard even when up to 30 wt% was used. The treatment utilizing hydrated lime and FeCl3·6H2O was not effective in properly reducing As leachability. The addition of FeCl3·6H2O was negative in terms of pH condition. Moreover, the treatment with hydrated lime/NaOH was effective in reducing As leachability but not as much as hydrated lime/Portland cement. The sequential extraction results indicated that the residual phase was greatly increased upon the treatment of hydrated lime/Portland cement. It was concluded that the hydrated lime/Portland cement treatment was the best among the other combinations studied at achieving trace As concentrations.

사람을 따라 자동으로 풍향 조절하는 인공지능 스마트 선풍기

조우리 ( Woo-ri Cho ),이지현 ( Ji-hyun Lee ),오다연 ( Da-yeon Oh ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2

본 연구의 목적은 얼굴 인식을 통해 사용자 위주로 작동하는 인공지능 선풍기를 개발하기 위한 것이다. 일반적인 선풍기는 사용자가 직접 풍향을 조절해야 하며, 조절한다 하더라도 사람이 위치하지 않은 곳까지 바람을 보내주거나, 사람이 없는 상황에서도 동작하는 비효율적인 방식이다. 따라서 본 논문에서는 OpenCV 오픈 소스 라이브러리를 중심으로 얼굴 인식 기능을 탑재한 선풍기로 PWM을 이용한 선풍기의 회전과 안드로이드 앱의 블루투스 모듈을 이용하여 원격조정이 가능하도록 하였다. 기존의 사용자가 직접 선풍기의 풍향을 설정해야 하는 것이 얼굴 인식이라는 시스템을 통해 자동으로 풍향이 조절되는 방식이다. 그 결과, 선풍기를 직접 설정할 수 없는 상황에 놓인 사람들에게 큰 도움이 됨과 동시에 불필요한 전력 낭비가 줄어드는 친환경 선풍기를 개발하였다.

P-143 : 2012년 금강수계 퇴적물 시료에서의 중금속간 상관성

이준배 ( Jun Bae Lee ),홍선화 ( Sun Hwa Hong ),간종범 ( Jong Beom Khan ),오다연 ( Da Yeon Oh ),김교영 ( Keo Young Kim ),이영준 ( Young Joon Lee ) 한국물환경학회(구 한국수질보전학회) 2013 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2013 No.-