백제 국가 형성기의 철제 농기구 출토 양상 연구

이희경(Lee, Hui-kyung) 한국상고사학회 2018 한국상고사학보 Vol.99 No.-

중부지방 원삼국~한성백제기의 취락 유적에서 출토된 철제 농기구를 대상으로 출토 비율, 형태, 출토 유적 및 주거지의 특징을 분석하여, 국가 형성 이후의 농기구 양상의 변화에 대해 검토하였다. 그 결과 한성기에 이르러 농기구의 출토 양상에 여러 변화가 나타났음을 알 수 있었다. 주조괭이와 철겸의 출토 비율이 증가하였으며, 주조괭이는 이용 계층 또한 확대된 것으로 추정되었다. 세 종류의 농기구는 모두 형태적으로도 변화하였는데 삽날은 좀 더 세장해지고 주조괭이는 장방형, 제형, 八자형이 주를 이루게 되었으며 철겸은 직인의 비율이 높아졌다. 기경구인 삽날과 주조괭이의 경우에는 길이가 길어지고 지역적 차이가 나타난다는 점에서 유사한 변화 양상을 보이기도 한다. 이러한 변화들은 농기구의 분포 양상으로 보았을 때 백제 중앙의 전략적 행위에 의한 것으로 해석되었다. 또한 국가형성에 따른 변화의 정치적, 경제적 의미에 대해 살펴본 결과, 출토 비율 및 형태적 측면의 변화는 농업 생산성 증대를 가능하게 한 것으로 추정되었으며, 삽날과 쇠스랑과 같은 희소한 농기구의 분포는 백제 중앙과 지방 상위 취락 간의 관계를 반영하는 것으로 생각되었다 This paper analyzed the aspect of the change of iron agricultural implements according to the state formation of the Baekje in central Korea by analyzing the ratios and forms of iron implements and the characteristics of house and settlements where agricultural implements was found. The results of the study can be summarized as follows. In the Hanseong periods the rate of agricultural implements increased and morphological changes appeared, and the range of people using casting hoe increased. These changes were interpreted as a result of the strategic actions of Baekje state. And it was considered that the increase of agricultural productivity was possible due to the change of ratio and morphological aspect of agricultural implements, and the distribution of rare agricultural equipments such as u-shaped blade and sawdust was considered to reflect the relationship between the center and the local village of Baekje.

장기요양노인환자들에 대한 구강체조가 구강기능 향상에 미치는 영향

이지혜 ( Jee Hye Lee ),권호근 ( Ho Keun Kwon ),이윤희 ( Yun Hui Lee ),이민호 ( Min Ho Lee ),이희경 ( Hee Kyung Lee ) 대한예방치과·구강보건학회 2010 大韓口腔保健學會誌 Vol.34 No.3

Objectives. The purpose of this study was to provide basic data for development of oral exercise for the elderly under the long-term care insurance system in Korea from December 2007 to June 2008. Methods. Fifty three patients of a nursing facility in Ch`onan were selected to be the intervention group, and fifty two patients of a nursing facility in Geochang, Gyeongsangbuk-do were recruited to be the control group. Both groups were provided with the oral exams and oral function exams, only that the intervention group performed the oral exercise five times per week for three months. Results. After the experiment, statistically significant differences between the two groups were observed. First, the repetitive swallowing test showed a different result between the two groups by 2.2 in the intervention group after the program while it declined by 0.1 in the control group (p<0.01). The number of phonation showed a contrast between the two groups: an increase by 4.4 for the intervention group and a decrease by 0.2 for the control group, with adjusted baseline status (p<0.01). Salivation was also influenced: an increase by 6.4mm from the intervention group and an increase by 0.4mm from the control group were shown (p<0.01). The maximum opening showed an increase by 0.4cm and a decrease by 0.3cm for the intervention group and the control group, respectively, with adjusted baseline status (p<0.01). Lastly, the right cheek ballooning function test showed a decline in capacity by 7.7% in the control group and an improvement by 22.6% in the intervention group (p<0.05). Conclusions. These results supported that the three-month oral exercise improves oral function amongst the elderly.

전극촉매를 활용한 수소생산 및 난분해성 물질 제거 특성

안상우(An, Sang-Woo),이희경(Lee, Hui-Kyung),명대원(Myung, Dae-Woon),고준걸(Go, Jun-Geol) 한국지반환경공학회 2017 한국지반환경공학회 학술발표회논문집 Vol.2017 No.9

고등영어 교과서의 듣기활동과 영어듣기평가 상관관계 연구

문진희(Mun Jin-Hui),이희경(Lee Hee-Kyung) 한국외국어교육학회 2007 Foreign languages education Vol.14 No.2

  This study is to investigate the relationship between teaching and testing restricted on English listening comprehension processing. 726 listening activities in three textbooks of High School English and 80 questions in four nationwide English listening comprehension tests for high-school first grades were analyzed and classified into micro-skill categories of top-down, bottom-up and interactive processing. The results revealed that the tests put emphasis on the top-down processing in contrast to overemphasis of the textbooks on the bottom-up processing, whereas interactive processing took up a small portion both in the textbooks and tests. While the number of questions requiring bottom-up processing reduced in the tests, all the questions of bottom-up processing were focused only on one specific micro-skill, comprehending details. Further, despite diverse demonstrations of top-down micro-skills, each micro-skill question for top-down processing in the tests took some specific forms, which might lead students only to studying for preparation for the specific forms rather than for enhancing general comprehension abilities. Further pedagogical suggestions and implications for listening teaching were suggested.

Pilot scale 전기분해장치에서 하수방류수 내 TOC 제거 및 수소생산

안상우(An, Sang-Woo),이희경(Lee, Hui-Kyung),안진환(An, Jin-Hwan),송구현(Song, Goo-Hyung),명대원(Myoung, Dae-Won) 한국지반환경공학회 2018 한국지반환경공학회 학술발표회논문집 Vol.2018 No.9

뇌혈관질환자의 구강건강관리프로그램 효과

동판 ( Dong Fan ),이윤희 ( Yun Hui Lee ),이희경 ( Hee Kyung Lee ) 한국치위생학회 2014 한국치위생학회지 Vol.14 No.3

Objectives : The purpose of the study is to investigate the effect of the oral hygiene care program in stroke patients. Methods : The subjects were 62 stroke patients of rehabilitation department in Youngnam University Hospital in Daegu. The study was carried out from January, 2010 to October, 2010. Intervention group was 35 and the control group was 31 patients. Tooth brushing instruction, oral health education and scaling were implemented in all patients at baseline. This program was conducted 5 times during hospitalization in intervention group. Results : In the intervention group, the mean age was 59.2 years, and women accounted for 66.7% and the control group consisted of 72.4% of women and mean age was 58.5 years. The average of the number of permanent teeth with experience of dental caries, the values of dental calculus index, plaque index, bleeding index and tooth mobility were 11.88, 11.79, 9.91, 3.16 and 1.16, respectively. The control group showed 10.21, 11.79, 9.91, 3.16 and 1.16, respectively. The proportion of subjects whose CPI was higher than 3 accounted for 97%, and the O`Leary index score was 38.6 in the intervention grou. The control group showed 100% and 38.79. Conclusions : Oral condition improved significantly in the intervention group in the third session. These findings may provide essential information for oral health program planning and implementation.

하수방류수 내 TOC 제거를 위한 전기분해공정의 최적 조건

안상우(Sang-Woo An),정혁상(Hyuk-Sang Jung),이희경(Hui-Kyung Lee),고준걸(Jun-Geol Ko),명대원(Dae-Won Myoung) 한국지반환경공학회 2017 한국지반환경공학회논문집 Vol.18 No.4

2013년 환경 정책 개정에 따라 총유기탄소(TOC)항목이 수질 및 수생태계 보전에 관한 법률에 도입되었으며, 이러한 정책시행에 따라 공공하수처리시설에서의 TOC에 대한 수질관리의 필요성이 대두되었다. 본 연구는 실험실 규모 전기분해공정에서 전기화학적 반응을 이용하여 하수방류수 내 TOC 제거특성을 살펴보았다. 실험실 규모의 전기분해공정에서의 실험 결과를 반응표면법에 적용하여 방류수 내 TOC 제거 특성분석을 실시하였다. 중심합성에 사용된 독립변수로는 전해공정의 주요 운전인자인 전극간격(x₁), 전류밀도(x₂), 전해질의 농도(x₃)를 선정하였으며, 종속변수로는 TOC 제거효율(y)이다. 전해공정에서 최적화 조건은 전극간격 50mm, 전류밀도 10.3mA/cm², 전해질의 농도 0.1M로 조사되었다. 통계학적 결과를 바탕으로 독립변수는 전극간격 > 전류밀도> 전해질농도의 순으로 작아지는 것으로 분석되었다. As the Enforcement Ordinance of Environmental Policy Act was revised in 2013, Total Organic Carbon (TOC) was added as an indicative parameter for organic matter in Water and Aquatic Ecosystem Environmental Criteria. Under these imminent circumstances, a regulatory standard is needed to achieve the proposed TOC limitation control water quality from the STP (Sewage Treatment Plant). In this study, a electrolysis utilizing the electrochemical reaction was investigated in lab-scale experiments for the treatment of TOC in sewage effluent. TOC reduction by a electrolysis was investigated response surface methodology using the Box-Begnken methods were applied to the experimental results. A central composite design was used to investigate the effects of the independent variables of electrode space (x₁), current density (x₂) and electrolyte concentration (x₃) on the dependent variables removal efficiency of TOC (y). The optimal conditions for electrolysis were determined: electrode space, current density and electrolyte concentration were 50 mm, 10.3 mA/cm² and 0.1M, respectively. Statistical results showed the order of significance of the independent variables to be electrode space > current density > electrolyte concentration.

하폐수 처리 전해시스템의 부생가스 자원화

안상우 ( Sang-woo An ),안진환 ( Jin-hwan An ),송구현 ( Goo-hyun Song ),명대원 ( Dae-won Myoung ),이희경 ( Hui-kyung Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2018 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2018 No.-

본 연구는 하폐수 내 고농도의 유해물질을 처리하기 위한 전기분해 시스템의 효율특성 및 전기분해과정에서 생성되는 부생가스인 수소(H₂)와 산소(O₂)를 구조적으로 분리하여 부생가스의 자원화 연구를 진행하였다. 전기분해의 유기물산화 및 부생가스 생성 효율의 최적화 및 상용화를 위하여 부생가스를 분리할 수 있는 전극 분리형태의 전기분해 시스템을 제작하였으며, 제작된 전기분해 시스템에서 유기물의 산화 특성 및 부생가스 분리효율과 생성량을 모니터링을 실시하였다. 전극 분리형태의 전기분해 시스템에서 생성된 수소와 산소의 순도는 90% 이상이었으며, 인가되는 전압에 따라 수소의 생성량은 점차 증가되는 것으로 확인되었다. 하폐수 처리공정에서 산소는 생물반응조의 활성화를 위하여 재활용할 수 있는 방안과 수소는 에너지원 혹은 탄소자원화에 대한 가능성을 살펴보았으며, 본 연구결과는 향후 테스트배드의 기초설계 자료로 활용될 예정이다.