• Journal of Science Education
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• v.37 no.1
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• pp.68-78
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• 2013

Until now, research to integrate art activities and science education have been making steady progress in the field of primary education and early childhood education that are directly involved in the art education of students. However, some science educators were interested in visualizing the artifacts by using design principles and experimental results through STEAM education. So, when conducting lessons for integrating science education with art activities, research is needed on the changing of the students' ability. Therefore, the purpose of this study is to investigate the effect of science experiments in collaboration with art activities for students' self-directed learning skills and creative personality in elementary school. This study was applied to 30 students(16 male, 14 female) of 4th grade in Changwon C elementary school. The teaching materials of this study was extracted some of the experiments from the 2007 revised national curriculum in elementary science textbook and 'Teachers for Exciting Science'. Experimental treatment was performed over a total of 10 class 5 subjects and a pre-post test was conducted through G-TAGAS. As a result, science experiments in collaboration with art activities have improved significantly students' self-directed learning skills and creative personality.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.70-80
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• 2013

The purpose of this study has placed its meaning in the use as the basic material for the research of the person's facial expressions, by researching and analyzing the visual reactions of recognition of children according to the facial expressions of emotion and by surveying the verbal reactions of boys and girls according to the individual expressions of emotion. The subjects of this study were 108 children at the age of 6 - 8 (55 males, 53 females) who were able to understand the presented research tool, and the response survey conducted twice were used in the method of data collection by individual interviews and self administered questionnaires. The research tool using in the questionnaires were classified into 6 types of joy, sadness, anger, surprise, disgust, and fear which could derive the specific and accurate responses. Regarding children's visual reactions of recognition, both of boys and girls showed the high frequency in the facial expressions of joy, sadness, anger, surprise, and the low frequency in fear, disgust. Regarding verbal reactions, it showed the high frequency in the heuristic responses either to explore or the responds to the impressive parts reminiscent to the facial appearances in all the joy, sadness, anger, surprise, disgust, fear. And it came out that the imaginary responses created new stories reminiscent to the facial expression in surprise, disgust, and fear.

• Journal of Korean Society of Environmental Engineers
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• v.35 no.5
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• pp.312-320
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• 2013

Particulates in drinking water distribution system (DWDS) are mostly influenced by internal corrosion of metal pipes and sediment in pipelines due to the solution of this effect is limited. The particle size, component and properties of compounds for particulates in distributed water are different and the difference of these characteristics will be occurred by the kind of facilities, pipe condition, external factors and supply system etc. In this study, conducting the investigation of water quality in DWDS researches with particulates in the water. Monitoring sites were each water supply reservoir and the end of water supply area in DWDS. To collect particulate material at each sampling site, $47{\phi}$ glass microfiber filter type GF/C was performed using a filtration. Substances that the effect of the turbidity in the water according to particulate suspended solids and inorganic materials is due to the increasing particulates in the end of DWDS were increased. The result of compounds analysis by using X-ray diffraction (XRD) were Goethite (${\alpha}$-FeOOH), Magnetite ($Fe_3O_4$) in the end of DWDS and Quartz ($SiO_2$), Yeelimite ($Ca_4Al_6O_{12}SO_4$) at the effluent of waterworks and reservoirs. There were differences the compounds and sediments in the releasing or remaining water distribution facilities.

• Applied Biological Chemistry
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• v.48 no.4
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• pp.339-344
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• 2005

Rice blast, which is caused by the fungus Magnaporthe grisea, is one of the most destructive diseases of rice. To identify genes involving in the signal transduction pathways that mediate rice blast resistance, we screened over 2,000 mutant lines of a highly resistant variety RIL260 that were generated by using a DEB (1, 3-Butadiene diepoxide) treatment method. In the mutant population, the frequency of albino plants was 6.7%, indicating that this population has a high frequency of mutations in the genome. The primary screening identified 29 mutant plants that exhibit a complete or partial loss of the resistance to rice blast. Among them, M5465, the most susceptible line, was subsequently examined by DNA gel-blot experiments using DNA molecular markers of Pi5(t) that has been previously identified as a durable resistance locus in RIL260. The result revealed that a large deletion and rearrangement of genomic DNA occurred in the Pi5(t) locus. The results suggest that DEB can be used as an efficient mutagen to induce large scale mutations in the rice genome. The isolated mutants should be useful for elucidating the Pi5(t)-mediated signaling pathways of rice blast resistance.

• Journal of the Korean association of regional geographers
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• v.10 no.2
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• pp.313-340
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• 2004

Namhansan fortress of Kwangju in Kyonggi Province has remained a traumatic historical landscape of Manchu invasion in the year 1636. Skirted by the mountain fortress and on the ground of the uplifted flatland was the county seat which was relocated in 16Z7 from Kogol at the underneath ravine and later removed in 1917 to a crossroad place at the low-lying river plain. Once a secluded mountain village, Sungnaedong was at the outset planned as a county town of Kwangju, achieving thereafter a dramatic transformation from a small town of three hundred households into a nascent urban settlement of approximately six hundred households by the mid-18th century. The townscape of Sungnaedong features shrines, a second palace, a magistrate-commander's office, administrative buildings, and a periodic marketplace which were all decreed by the Neo-confucian template of the scheme of county seats. Townspeople managed to live on tilling tax-alleviated crop lands, trading merchandise, and selling their labor. Changing socio-economic situations led to the relocation of the administration center to the gateway village of Jumakri, which consequently heralded the decline of the mountain-fortress settlement of Sansungri at Namhansan.

• Journal of Korean Medical classics
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• v.18 no.1 s.28
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• pp.67-72
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• 2005

통과분석(通過分析)${\ulcorner}$동의보감(東醫寶鑑)${\lrcorner}$양명형증용약여포괄중경적(陽明形證用藥？包括仲景的)${\ulcorner}$상한론(傷寒論)${\lrcorner}$재내적주요의학가대양명병적개념(在內的主要醫學家對陽明病的槪念), 득출여하결론(得出如下結論): 1.${\ulcorner}$동의보감(東醫寶鑑)${\lrcorner}$적양명형증용약당중이대편비결위중심, 미사용가이낭괄양명병증재내적위가실저개개념, 상세나열출양명병적구체증상 내급양명병하료정의(來給陽明病下了定義). 병미장대편비결작위대표성증상(幷未將大便秘結作爲代表性症狀), 이시근거표본관계분성경병여부병진행설명. 이기육작위표(以肌肉作爲表), 위작위리적표리개염분석기증상(胃作爲裏的表裏槪念分析其症狀). 2. 기찰급양명병하정의적의서(畿察給陽明病下定義的醫書), 발현제료중경적(發現除了仲景的)${\ulcorner}$상한론(傷寒論)${\lrcorner}$여기주석본성무이적${\ulcorner}$주해상한론(注解傷寒論)${\lrcorner}$이외(以外), 도장목동(都將目疼), 비건(鼻乾), 불득면부간주양명병대표증상(不得眠部看做陽明病代表症狀). 저충정의방식시종송도명대적보편관점 3. 재(在)${\ulcorner}$동의보감(東醫寶鑑)${\lrcorner}$당중작위인용서목적${\lrcorner}$의학입문(醫學入門)${\ulcorner}$, 근거표본(根据標本), 표리개염대증상진행료분류(表裏槪念對症狀進行了分類). 비기지전단순적대증상적서술갱구유조리성. 저가이간주시집당시제다견해지대성(這可以看做是集當時諸多見解之大成), 대병정적분석변적갱가구체. 선택(選擇)${\lrcorner}$의학입문(醫學入門)${\ulcorner}$작위인체서목(作爲引滯書目), 가이인위시채납료당시적최신견해, 병차흡수료용역장악병정적이증상위주적기술방식(幷且吸收了容易掌握病情的以症狀爲主的記述方式). ${\lrcorner}$의학입문(醫學入門)${\ulcorner}$취시집이상관점위일체적대성(就是集以上觀点爲一體的大成). 4. 여태양병당중양형증용약진행비교, 관찰병정적주요관점(觀察病情的主要觀点), 양자도추종료(兩者都追從了)${\lrcorner}$의학입문(醫學入門)${\ulcorner}$적견해(的見解). 단시태양형증용약몰유대몰위초출중경태양병적제망(但是太陽形證用藥沒有大沒圍超出仲景太陽病的提網), 상비지하양명형증용약기몰유인용(相比之下陽明形證用藥旣沒有引用) 중경적(仲景的)${\ulcorner}$상한론(傷寒論)${\lrcorner}$, 대증상적설명야대상경정(對症狀的設明也大相徑庭). 5. 양명형증용약당중몰유인용중경적위가실관점, 이시리용미악한(而是利用微惡寒), 발열(發熱), 갈(渴), 유한(有汗), 목동(目疼), 비건(鼻乾), 조한(潮汗), 폐삽(閉澁), 만갈(滿渴), 광섬, 불면등증상진행설명(不眠等症狀進行說明), 비기장악륭명병작위장부질병(比其掌握隆明病作爲臟腑疾病), 이해위이열위주적상당우양명속성적질병.

• Asian Journal of Turfgrass Science
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• v.26 no.1
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• pp.54-59
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• 2012

This study was conducted to evaluate to the effect of liquid fertilizer with saponin (SLF) and liquid fertilizer with amino acid (ALF)on the growth of creeping bentgrass. In creeping bentgrass, turf color index, chlorophyll index, dry weight and shoot number were measured. It was hardly affected by SLF and ALF applications in investigation of chemical properties of the soil. By applying SLF and ALF, turf color index and chlorophyll index in 2SLF and 2ALF were increased more than CF, and shoot number and root length in 2SLF, ALF and 2ALF were higher than CF. In correlation coefficient among growth factors of creeping bentgrass, turf quality was significantly different in root length, shoot number, dry weight, and content of N and K in turf tissue (P<0.05), N content of tissue was significantly in root length, shoot number and dry weight (P<0.05), and K content was significantly in shoot number and dry weight (P<0.05). These results suggested that application of functional liquid fertilizers such as SLF and ALF was expected to replace compound fertilizer in turf management and that applied SLF and ALF was stimulated the uptake of N and K into turf so that turf qualities were improved by enhancing growth shoot and root of turf.

• Journal of the Korea Convergence Society
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• v.11 no.2
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• pp.69-73
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• 2020

This study was intended to prepare the basic data required for the development of oral products for the patient with diabetes by analyzing the relation between diabetes and oral health and the actual condition of oral care from the senior citizens diagnosed with diabetes out of the senior citizens over 65. In this study, 8 senior citizens who visited the senior welfare center in D city, were organized into the group of 4 senior citizens and the interview approximately for 40 minutes per group was conducted. In the results of this study, 5 core topics of 'Diabetes and Oral Health", 'Oral Discomfort', 'Oral Care Method', 'Visit to Dentist' and 'Demand for Oral Care' were drawn. For the relation between diabetes and the oral health, the most of research subjects answered that they heard about it for the first time, They answered that for the oral health care, they brushed the teeth using toothpaste 3 ~ 4 times a day and for the visit to dentist, they visited the dentist only when they had oral problem. For what is necessary for oral care, they answered that they wish that the oral care education customized for patient with diabetes and diverse oral care products such as toothpaste, etc. would be developed. Considering the results of this study, the development of oral care management program and the development of oral products in future are deemed to be necessary.

• 전기의세계
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• v.24 no.4
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• pp.42-51
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• 1975

전기공학은 그 분야가 광범위하면서 세분된 여러 소분야로 구성되어 있기 때문에 이를 간단한 몇마디로 표현하기는 불가능하다. 그러나 전기기술자는 전하를 위시하여 전하간의 힘 및 전하간의 에너지 교환에 관하여 주로 관여하게 된다. 즉 전기기술자는 전기적 에너지 및 정보의 발생, 전송, 기억 및 제어를 최적화할 책임이 있고, 그 분야는 부단히 팽창일로에 있으며 변해가고 있다. 즉 학문적인 기초이론 뿐만아니라 실제 응용분야인 산업분야에서도 눈부신 발전과 변화를 가져왔다. 현대산업 및 기술구조의 질적개선은 기술 반감기의 감소, 막대한 양의 정보처리, 시스템의 대형화, 복잡화 현상을 가져왔으며 기술자체가 사회경제활동에 미치는 영향을 극대화시켰다. 그러므로 오늘날의 모든 전기기술자들은 신뢰성을 고려한 보다 넓은 의미에서의 책임을 느껴야 한다. 조국의 근대화와 방위산업육성 과정에서 중추적 역할을 담당할 이러한 전기공학분야의 중견연구원 및 기술자를 양성하는 공과대학전기공학과의 교과과정 역시 부단히 변하는 각종 환경에 적응될 수 있는 dynamic한 것이 되어야 한다. 즉 공과대학 전기공학과이 교과과정은 어떤 특정되고 고정된 기술 또는 설계에 대한 교과목으로 치우치는 것보다 수명이 길고 강력한 응용력과 창의력을 발휘하여 우리의 기술을 토착화하여 이를 우리의 것으로 만들 수 있는 것이 되어야 한다. 이러한 국내외적인 현실을 고려하여 당학회에서는 1974년도 조사연구사업의 일환으로 교과과정조사회를 구성하여 국내의 여러대학의 전기공학과 교과과정편성에 다소의 도움을 주고저 일차적인 시안으로서 다음과 같은 특징을 갖는 교과과정을 작성하였다.{3}$N$_{4}$등의 산화물 및 질화물로 대표되는 분자성 비정질 물질로서 금지대는 2eV보다 큰 세종류로 크게 분류할 수 있다. 분류할 수 있다. 한다. 단 개개의 문제에 관한 구체적인 해석 또는 검토에 관하여는 다음 기회에 미루기로하고, 우선 여기서는 당면문제로서 대처하지 않으면 안될 자동주파수제어문제및 계통의 경제운용문제만에 한정하여, 이것을 우리나라의 현상과 관련시켜 개설하고, 이들의 자동화에 관한 기본적인 문제를 간단히 적어 보겠다. 가능하다. 제작완료된 ASIC은 기능시험을 완료했으며 실제 line-of-sight(LOS) 시스템 구현에 적용중이다. 시대를 살아 갈 회원들이다. '컨텐츠의 시대'가 개막되는 것이며, 신세기통신과 SK텔레콤은 선의의 경쟁 과 협력을 통해 이동인터넷 서비스의 컨텐츠를 개발해 나가게 될 것이다. 3배가 높았다. 효소 활성에 필수적인 물의 양에 따른 DIAION WA30의 라세미화 효율에 관하여 실험한 결과, 물의 양이 증가할수록 그 효율은 감소하였다. DIAION WA30을 라세미화 촉매로 사용하여 아이소옥탄 내에서 라세믹 나프록센 2,2,2-트리플로로에틸 씨오에스터의 효소적 DKR 반응을 수행해 보았다. 그 결과 DIAION WA30을 사용하지 않은 경우에 비해 반응 전환율과 생성물의 광학 순도는 급격히 향상되었다. 전통적 광학분할 반응의 최대 50%라는 전환율의 제한이 본 연구에서 찾은 DIAION WA30을 첨가함으로써 성공적으로 극복되었다. 또한 고체 염기촉매인 DIAION WA30의 사용은 라세미화 촉매의 회수 및 재사용이 가능하게 해준다.해준다

• Journal of the Korea Concrete Institute
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• v.28 no.3
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• pp.289-298
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• 2016

An experimental research was performed using fibers for the purpose of retrofitting existing reinforced concrete circular columns. Glass fiber (GF) and polyethylene terephthalate (PET) were used as well as combined GF+PET (HF). PET has high tensile strength (over 600 MPa) and high ductility (about 15%), but has very low elastic modulus (about 1/6 of GF). A total of four columns was tested against laterally applied reverse cyclic load: control column, GF-, PET-, and HF-strengthened columns. All columns retrofitted using fibers demonstrated improved moment capacity and ductility. Moment capacity of GF-, PET-, and HF-strengthened columns was 120%, 107%, and 120% of the control column, respectively. Drift ratio of all retrofitted columns also increased by 63 ~ 83% over the control column. The final failure mode of the control column was main bar buckling. The final failure mode of the GF- and HF-strengthened columns was GF rupture while that of the PET-strengthened column was main bar rupture in tension. No damage was observed for PET at the ultimate stage due to excellent strain capacity intrinsic to PET. Current test results indicate that PET can be effectively used for seismic retrofit of RC columns. It is noted that the durability characteristics of PET needs to be investigated in the future.