검색결과

검색조건
좁혀보기
검색필터
결과 내 재검색

간행물

    분야

      발행연도

      -

        검색결과 6

        1.
        2018.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        SWRO-PRO hybrid desalination technology is recently getting more attention especially in large desalination markets such as USA, Middle East, Japan, Singapore, etc. because of its promising potential to recover a considerable amount of osmotic energy from brine (a high-concentration solution of salt, 60,000 – 80,000 mg/L) and also to minimize the impact of the discharged brine into a marine ecosystem. By the research and development of the core technologies of the SWRO-PRO desalination system in a national desalination research project (Global MVP) supported by Ministry of Land, Infrastructure, and Transport (MOLIT) and Korea Agency for Infrastructure Technology Advancement (KAIA), it is anticipated that around 25% of total energy consumption rate (generally 3 to 4 kWh/m3) of the SWRO desalination can be reduced by recovering the brine’s osmotic energy utilizing wastewater treatment effluent as a PRO feed solution and an isobaric pressure exchanger (PX, ERI) as a PRO energy converter. However, there are still several challenges needed to be overcome in order to ultimately commercialize the novel SWRO-PRO process. They include system optimization and integration, development of efficient PRO membrane and module, development of PRO membrane fouling control technology, development of design and operation technology for the system scaling-up, development of diverse business models, and so on. In this paper, the current status and progress of the pilot study of the newly developed SWRO-PRO hybrid desalination technology is discussed.
        4,000원
        2.
        2018.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 예비보육교사들의 STEAM 교육에 대한 인식 특성을 알아보기 위해 보육관련학과에 재학 중인 2, 3학년 예비보육교사를 대상으로 설문을 실시하였다. 최종 118명의 설문을 분석하였으며, 분석 결과는 다음과 같다. 첫째, STEAM 교육에 대해 들어본 경험이 있는 학생에 비해 들어본 경험이 없는 학생의 비율이 더 높았으며, STEAM 교육이 필요하다고 응답한 학생은 전체응답자의 65.3%였다. 둘째, STEAM 교육을 위해 필요한 교사자질과 역할에 대한 인식정도에서는 4가지 교사자질(누리과정과 연계해서 교육 활동을 구성, 기존의 통합교육과 구별할 수 있는 이해력, STEAM 각 영역에 대한 전문적인 지식, 관심과 의지)과 5가지 교사역할(도전적 과제 제시자, 학문적 지지자, 활동 참여 촉진자, 평가자, 자기 역할 설정자) 모두에서 보육실습경험이 있는 학생들이 보육실습경험이 없는 학생들에 비해 더 중요하다고 인식하는 것으로 나타났다. 셋째, STEAM 교육을 위한 예비교사교육 내용의 중요도와 보유도, 요구도를 비교한 결과, 중요도에서는 8가지 모든 상위범주에서 두 집단 간에 유의한 차이가 있었으며, 보유도에서는 2가지 상위범주에서만 집단 간 유의한 차이를 보이는 것으로 나타났다. 교육 내용에 대한 요구도에서는 보육실습경험이 있는 집단의 경우 주로 실제적인 STEAM 수업 설계 및 실행 능력에 대한 요구도가 가장 높은 반면, 보육실습경험이 없는 집단의 경우 STEAM 에 대한 지식적인 측면에 대한 요구도가 높은 것으로 나타났다. 이상의 결과를 바탕으로, 본 연구는 4차 산업혁명 시대를 준비하는 교사로서의 역량을 갖추기 위해 예비보육교사들에게 새로운 지식 및 정보를 지속적으로 제공받을 수 있는 교육환경이 필요함을 시사한다.
        6,000원
        3.
        2013.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Kim Ji-suk. 2013. Study on the Semantic Divergence and Lexical Items of Ojingeo(Squid) in Fishing Village of Ulleungdo. The Sociolinguistic Journal of Korea 21(3). This study is to inquire into the Ullenungdo's own linguistic uniqueness by way of the lexical items of Ojingeo whose old forms remain a lot for the fishermen who reside in Ullenungdo. And also, this study is to investigate the classification mechanism of Ojingeo-related lexicons, the degree of the lexical productivity, and then the ethnographic quality of the lexical items of Ojingeo. Firstly, the superordinates referring to Ojingeo in Ullenungdo are ‘Ikka, Surume, Ojingeo, Pidungeokkolttugi, Jogi’. Just like this, the five names of the main categories are large in number in this area, which means that the ecological distribution of Ojingeo is large and the cultural, social importance of fishes in the relevant area is great. In view of the fishermen's knowledge and the lexical productivity, it is found out that ‘Ikka’ and ‘Ojingeo’ are the word referring to the whole of Ojingeo and ‘Surume, Pidungeokkolttugi, Jogi’ are the word referring to the individual of Ojingeo. Secondly, the lexical items of Ojingeo were diversified into ‘Najojingeo, Dongsamojingeot, Taengchi, Jungchit, Tasaijji, Yoijjit, Tseonmangojingeot, Taljogi, Sutjogi’ by ‘size adult and young fishes, fishing period, fishing tool, color, male and female based on the subordinates ‘Ikka’ and ‘Ojingeo’. Fishermen group's own classification method, that is, private classification method is appeared productively in relation to the edible value, the work efficiency of fishermen, and the economic feasibility. It means that Ojingeo, the important ground of fishing activity, constructs the world of fishermen's experience, and is recognized, used as a genuine cultural mode. Thirdly, the catching period and season of Ojingeo much influenced the amount of catches, which influenced the fishing operations such as ‘Dongsamjigi, Chodeungbari’ and ‘Haechigi, Natchigi, Dalchigi, Saetbyeolchigi’. It is also related with the ethnographic quality and leads to the creation and use of idiomatic expressions such as ‘To eat the red-bean gruel on the winter solstice means the sixty age(the last catch) of Ojingeo, The winter solstice is the sixty age of Ojingeo, Dojikgi, The first catch of Ojingeo can not be kept long.’ (332 words)
        6,900원
        4.
        2012.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Kim Ji-suk. 2012. A Study on the Aspect of Diversification of the Myeongtae's Lexical Items from the Viewpoint of Performer. The Sociolinguistic Journal of Korea 20(2). pp. 149-184. This study is to inquire into the aspect of diversification of the Myeongtae's lexical items by way of the vocabularies and expressions related to Myeongtae which varied according to the cognitive aspect of performer. And also, this study is to lay the foundation for the construction of the lexical semantic network of Myeongtae based on the findings of this inquiry. The superordinates referring to Myeongtae were 'Myeongtae, Maengtae' in both the fishing villages and the Deokjang. However, the subordinates of Myeongtae varied according to the performer's cognitive viewpoints. The fishermen expressed Myeongtae into ‘Jibangtae, Daetae, Saegogi, Naksitae, Moktae’ according to distance, size, condition, fishing tools, characteristics. Unlike the fishermen, the workers in Deokjang expressed Myeongtae into another subordinates. In Deokjang, ‘Daetae, Jungtae, Sotae’ were used according to the size as in the fishing villages. However, ‘-tong, -tongbaegi’ were used more universally in Deokjang. Additionally, ‘Jjintae, Norangtae, Naktae’ were used according to condition, color, characteristics, which means another aspect of diversification appeared. Surely, this aspect of diversification is very relevant with the Deokjang workers'environmental factors. It is certain that several classification mechanisms were performed for the name of one object. By way of the performer's cognitive way, the classification mechanism of the vocabulary was able to be drawn. The ‘distance, fishing tools’ for the fishermen and the ‘-tong, -tongbaegi’ for the Deokjang workers were functioned as the first mechanism, and then various lexical items were diversified according to the condition and the characteristics. In this study which carried out a practical vocabulary research, it is found out that linguistic and cultural aspects, the performer's cognition influence on even the lexical items. Also this study examines out the classification mechanism of the Myeongtae's lexical items. This study has a significance in that it is helpful for recognizing everyday vocabularies about Myeongtae which have lived with our people and history for a long time, and also for recording everyday vocabularies of fishing villages which is in danger of extinction.
        8,400원