http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
스마트폰의 교육용 어플리케이션 동향분석 및 발전방향 연구
정수정,임걸,고유정,심현애,김경연,Jeong, Su-Jeong,Lim, Keol,Ko, Yu-Jung,Sim, Hyun-Ae,Kim, Kyung-Yeon 한국디지털콘텐츠학회 2010 한국디지털콘텐츠학회논문지 Vol.11 No.2
본 연구는 현재 공급되고 있는 교육용 어플리케이션에 다양한 기준을 적용하여 분석하고, 온라인 또는 원격교육의 특성이 어떻게 적용될 수 있는지에 대한 가능성을 모색하였다. 이를 위해 총 85개의 교육용 어플리케이션을 선정하였고, 콘텐츠 유형, 상호작용 유형, 콘텐츠 유형과 상호작용 유형의 조합을 준거로 분석하였다. 분석결과 콘텐츠 유형에서 반복연습형 및 도구형 등 빈도는 높은 반면, 모의실험과 문제해결형의 빈도는 낮았다. 상호작용에 있어서는 학습자와 콘텐츠 간 상호작용 유형이 대부분을 차지하였는데, 따라서 원활한 학습자간 의사소통의 확장이 이루어지는데 한계가 있었다. 따라서 SNS(Social Network Service) 어플리케이션 등의 특징을 적용하여 학습의 상호작용성을 촉진시키기 위한 목적으로 교육용 어플리케이션이 개발될 필요성이 있음이 발견되었다. 아울러 본 연구 결과를 바탕으로 스마트폰의 교육적 활용에 관한 몇 가지 제언을 하였다. This study analyzed educational applications in smartphones with some criteria seeking to apply online learning characteristics to smartphones. For the analysis, 85 educational applications were selected and they were classified by types of educational contents, interactions, and the combination of the educational contents and interactions. As a result, drill-and-practice and tool types of contents ranked high, and there found to be few simulation and problem solving types. In regard to interaction types, almost all of the applications had interactions only between contents and learners, which meant little active communications when using applications. Therefore, enhanced interactions and communications among learners using the social network service platform were required in order to use educational applications in a more effective way.
정수정,홍승은,나지현,S. Jung,S.-E. Hong,J. Na 한국전자통신연구원 2023 전자통신동향분석 Vol.38 No.2
Energy efficiency is an important factor toward sustainable future mobile network systems. As the size of the 5G mobile network system increases, the consumption and costs of energy increase. Accordingly, energy-saving optimization has become a major process in network systems, and various related technologies for energy saving are being developed. We provide a brief review of the technical trends in energy saving in 3GPP 5G & 5G Advanced systems and O-RAN systems. We focus on power models and energy-saving technologies in various resource domains of 3GPP 5G & 5G Advanced systems and energy-saving use cases of O-RAN systems.
영산강 수계 오염특성 파악을 위한 다변량 통계분석법의 적용
정수정 ( Soo Jung Jung ),이동진 ( Dong Jin Lee ),황경섭 ( Kyung Sup Hwang ),이경희 ( Kyoung Hee Lee ),최경축 ( Kyoung Chuk Choi ),임상순 ( Sang Sun Im ),이윤희 ( Yun Hee Lee ),이재영 ( Jae Young Lee ),임병진 ( Byoung Jin Lim ) 한국하천호수학회(구 한국육수학회) 2012 생태와 환경 Vol.45 No.4
This study evaluated the water quality of Yeongsan River by multivariate analysis using the data collected during 2001~~2010. Water quality in Yeongsan River could be explained up to 75.2% by four factors, which were included in loading of nutrients (32.021%) and organic matters (17.453%), seasonal variation (14.775%) and microbes (10.951%). The results of cluster analysis were classified into three groups by factor 1 and 2, which has different water quality characteristics. Group 1 included sampling stations located in the upper stream and estuary dyke of Yeongsan River, group 2 included Gwangju 1 and Gwangsan affected by domestic sewage of Gwangju-cheon, and group 3 included sampling stations located in the midstream around the livestock farm and farmland.
영산강 수계 지류,지천의 수질 특성 평가 및 등급화 방안
정수정 ( Soo Jung Jung ),김갑순 ( Kap Soon Kim ),서동주 ( Dong Ju Seo ),김정현 ( Jung Hyun Kim ),임병진 ( Byung Jin Lim ) 한국물환경학회 2013 한국물환경학회지 Vol.29 No.4
Water quality trends for major tributaries (66 sites) in the Yeongsan River basin of Korea were examined for 12 parameters based on water quality data collected every month over a period of 12 months. The complex data matrix was treated with multivariate analysis such as PCA, FA and CA. PCA/FA identified four factors, which are responsible for the structure explaining 78.2% of the total variance. The first factor accounting 27.3% of the total variance was correlated with BOD, TN, TP, and TOC, and weighting values were allowed to these parameters for grade classification. CA rendered a dendrogram, where monitoring sites were grouped into 5 clusters. Cluster 2 corresponds to high pollution from domestic wastewater, wastewater treatment and run-off from livestock farms. For grade classification of tributaries, scores to 10 indexes were calculated considering the weighting values to 3 parameters as BOD, TN and TP which were categorized as the first factor after FA. The highest-polluted group included 10 tributaries such as Gwangjucheon, Jangsucheon, Daejeoncheon, Gamjungcheon, Yeongsancheon. The results indicate that grade classification method suggested in this study is useful in reliable classification of tributaries in the study area.
정수정 ( Soo Jung Jung ),나숙현 ( Suk Hyun Na ),배상옥 ( Sang Ok Bae ),임병진 ( Byung Jin Lim ) 한국물환경학회 2012 한국물환경학회지 Vol.28 No.5
This study was carried out to evaluate the removal rate of organic and inorganic matters from landfill leachate using pre-treatment process as coagulation and limonite adsorption, and membrane process as RO(reverse osmosis) and NF(nanofiltration). By adding limonite adsorption as pre-treatment process, about 40% of organic matters in leachate was removed through pre-treatment process and 74.7% of boron was removed after RO process without pH adjustment. The rejection rate of boron in RO process mainly depends on the pH and increased at pH value of 10. RO process was performed as two stage system adjusting pH condtion to 7 and 10 in second RO stage for boron removal. Most(>90%) of TOC, Cl- and inorganic matters as Ca was rejected in first RO stage, the residue was rejected in second RO and the rejection rate was above 97%. Considering economic efficiency of operation cost, NF substituted for the first RO and total removal rate of TOC was above 90%. Through RO system toxicity to Daphnia in leachate was removed completely.
정수정 ( Soo Jung Jung ),박경미 ( Kyung Mi Park ),송유림 ( Yu Rim Song ),조성희 ( Seong Hee Cho ),양승정 ( Seung Jeong Yang ),마영훈 ( Young Hun Ma ) 대한한방부인과학회 2015 大韓韓方婦人科學會誌 Vol.28 No.2
Objectives: This study aims to report the effect of Korean medicine treatments on a sequela of operation of hallux valgus. Methods: The patient was treated with Dangkisoosan-gami, Acupuncture treatment including Herbal-Acupuncture and physical therapy. We evaluated treatment effects by circumference of foot and ankle, Edema index score by Body Composition Analyzer, Ankle-Brachial Index (ABI) and Visual Analogue Scale (VAS). Results: After 25 days of treatment, the symptoms such as lower extremity edema, foot pain and ankle pain were improved. Conclusions: In this case, Korean medicine treatments for a sequela of operation of hallux valgus was effective. But further studies are required to confirm the effect of these methods.