• 제목/요약/키워드: Essential Elements

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디지털 장서개발정책 기본요소 연구 (A Research on the Elements of Digital Collection Development Policy)

  • 장덕현;서태설
    • 한국도서관정보학회지
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    • 제40권3호
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    • pp.97-117
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    • 2009
  • 장서개발정책은 도서관 및 정보센터에 있어서의 장서개발의 특징과 범주, 우선순위 등을 규정하는 장서관리 업무의 마스터플랜이다. 도서관은 장서개발정책을 통하여 수집대상 장서의 범위, 수집의 우선순위 및 구입 수준 등에 대한 명확한 원칙을 설정하여야 한다. 이 연구에서는 국가단위 디지털도서관 장서개발정책 수립의 전단계로서 국립디지털도서관의 디지털장서개발정책 기본모형을 연구하여, 국가적 디지털장서개발정책의 필수 요소들을 도출하고 향후 디지털장서개발정책의 일반적 지침을 정립하고자 하였다. 이를 위하여 국내외의 전자자원개발정책 사례들을 조사 분석하여 국가단위 디지털도서관에 적합한 독립형 장서개발정책의 설정을 제안하고, 국가단위 디지털도서관이 수집 대상으로 하는 정보자원의 유형과 범위, 수집의 우선순위를 제시하여, 구입 수준, 라이선스 등에 관한 내용에 대한 원칙과 국가적 디지털 정보자원 개발의 체계적 수행을 위한 필수요소들을 도출하였다.

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정보교육의 본질과 전망 (The Nature and Perspective of Informatics Education)

  • 이영준;이은경
    • 컴퓨터교육학회논문지
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    • 제11권3호
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    • pp.1-11
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    • 2008
  • 컴퓨터 과학(Computer Science)의 기본 원리와 개념에 기반한 창의적 문제해결력은 21세기를 살아가기 위한 모든 학습자가 갖추어야 할 능력이다. 그러나 컴퓨터 과학이 무엇인지, 정보교육의 본질은 무엇인지에 관한 많은 논란과 잘못된 외부적 인식이 존재한다. 따라서 본 연구에서는 정보교육의 본질 및 필요성에 관한 면밀한 고찰을 진행하고 이를 통해 정보교육의 발전을 위한 방향을 제시하고자 하였다. 먼저 컴퓨터 과학의 개념이 어떤 관점으로 변화되어 왔는지 살펴보고 이러한 관점의 차이에 따른 국가별 컴퓨터 과학 관련 교육과정 운영상의 차이가 있음을 지적하였다. 또한 정보는 모든 학문 영역의 기초가 되는 독립된 과학으로서 모든 사람이 필수적으로 배워야 하는 학문임을 주장하기 위한 근거들을 제시하였다. 끝으로 정보가 과학적 사고를 신장시키기 위한 학문임을 주장하기 위해, 과학적 사고에 기반한 정보의 핵심요소들을 제시하였다. 핵심요소는 '표현', '처리', '장치', '관계', '구성' 의 5가지를 포함하며 이러한 핵심요소들을 토대로 정보의 개념 영역을 확장해 나갈 수 있을 것이다.

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수원팔경의 형성배경과 문화경관적 함의(含意) (A Study on the Background of Suwon Palkyong and the Implication of Cultural Landscapes)

  • 노재현
    • 한국조경학회지
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    • 제36권1호
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    • pp.90-102
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    • 2008
  • This paper has aimed to determine how the Suwon Palkyong(水原八景: eight scenic wonders) were formed and the implicature of landscape, such as implicit intention and symbolic significance. For this, the significance and symbolic meaning of the Suwon Palkyong from the time of the 'Hwaseong Chunchu Palgyeong(華城春 秋入景)' have been investigated in order to determine the political and social arguments in Suwon Palkyong that surrounded the formation process and meaning. The 'Hwaseong Chunchu Palkyong' contains a variety of significant elements and factors of Pungmul(Korean drum & dance) as well as formative elements such as a castle. Plantings for beautiful scenery and water use for flood control have also been major elements in the development of Hwaseong. Therefore, it seems that the 'Hwaseong Chunchu Palkyong' is a catchphrase for the future image of the urban landscape. Most Suwon Palkyong sites such as Paldalsan, Namje, Yungneung, Manseokgeo, Chukmanje, Hwahongmun, and Yongji(a pond in Banghwa Suryujeong) are related to the 'Hwaseong Chunchu Palkyong'. 'Gwanggyo Jeokseol(光敎積雪: the landmark mountain, Mt. Gwanggyo with snow)' and 'Paldal Cheongnam(八達晴嵐: Mt. Paldal with shimmering air)' have also been added to Suwon Palkyong. Suwon Palkyong is either directly or indirectly related with water including the origin of Suwoncheon(水原川), an artificial reservoir for flood control and irrigation and Bibopungsu in Yungneung(隆陵), as well as the source of water for rituals after the death of King Jeongjo(正祖大王). Based on Suwon Palkyong, therefore, it can be said that water is a decisive medium in connecting old Suwon with Hwaseong New Town and essential element in the natural landscape. In conclusion, while Hwaseong is a 'Designed Landscape' that was created with a specific intention during the reign of King Jeongjo, the 'Hwaseong Chunchu Palkyong is a 'Desired Landscape' that envisioned a future landscape while Suwon Palkyong is an 'Evolved Landscape' related to the business affairs of the citizens. To completely restore Hwaseong, whose value and importance have been recognized internationally, therefore, the fundamental restoration of a cultural landscape as well as the restoration of the original form of the Hwaseong landscape including Suwon Palkyong is essential.

상치의 시비조건에 따른 상치내 몇 가지 필수 무기원소들의 함량에 관한 연구 (A Study on the Effect of Fertilization Conditions within the Contents of Several Essential Elements in Lettuce)

  • 권오달;이진희;최순남;신영미;정근희
    • 한국유기농업학회지
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    • 제7권2호
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    • pp.163-167
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    • 1999
  • 두 종류의 상치에 대한 화학 비료와 유기길 비료의 사용, 그리고 목초액 처리구와 무처리구로 나눈 것의 미량원소 함량과의 상호 관계를 연구하기 위해 총 20개 처리구를 두어 총 10주 동안 실험한 결과는 다음과 같다. 1. 화학비료와 유기질 비료 사이에 목초액 비처리구에서 Fe의 함량이 차이가 있었고, 목초액 처리가 상치내 Fe 함량을 높이는 경향을 나타냈다. 이와 같은 현상은 상치의 품종에 따라 다소 다르게 나타났다. 2. Ca의 경우 목초액 처리가 상치내 Ca 함량에 영향을 미쳤으며, Ca 함량도 상치의 품종에 따라 다르게 나타났다. 아울러 목초액 비처리구에서 유기질 비료를 사용하는 경우 상치 내의 Ca 함량을 낮추는 것으로 나타났다. 3. 상치 내의 Mn, Cu, Zn의 함량은 처리구별, 품종면에서 큰 차이가 나타나지 않았다.

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Diffusion Behaviors of B and P at the Interfaces of Si/$SiO_2$ Multilayer System After the Annealing Process

  • Jang, Jong-Shik;Kang, Hee-Jae;Hwang, Hyun-Hye;Kim, Kyung-Joong
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2012년도 제43회 하계 정기 학술대회 초록집
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    • pp.232-232
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    • 2012
  • The doping of semiconducting elements is essential for the development of silicon quantum dot (QD) solar cells. Especially the doping elements should be activated by substitution at the crystalline sites in the crystalline silicon QDs. However, no analysis technique has been developed for the analysis of the activated dopants in silicon QDs in $SiO_2$ matrix. Secondary ion mass spectrometry (SIMS) is a powerful technique for the in-depth analysis of solid materials and the impurities analysis of boron and phosphorus in semiconductor materials. For the study of diffusion behaviour of B and P by SIMS, Si/$SiO_2$ multilayer films doped by B or P were fabricated and annealed at high temperatures for the activated doping of B and P. The distributions of doping elements were analyzed by SIMS. Boron found to be preferentially distributed in Si layer rather than the $SiO_2$ layer. Especially the B in the Si layers was separated to two components of an interfacial component and a central one. The central component was understood as the activated elements. On the other hand, phosphorus did not show any preferred diffusion.

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한국에서 분진 및 금속원소의 건식 침착속도 추정에 관한 연구 (Studies on Estimating Dry Deposition Velocities for Atmospheric Aerosol and Metal Elements in Korea)

  • 김성천;김동술
    • 한국대기환경학회지
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    • 제12권1호
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    • pp.101-112
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    • 1996
  • Dry and wet deposition is an impertant removal mechanism of the amobient aerosol in the atmospheric environment. Since the deposition flut provides adverse impacts on various encironmental media including aquatic and ecological system as well as human health, it is essential to quantitatively estimate the removal fluxes of many air pollutants. Thus, the purposes of this experimental study are to investigate seasonal deposition flux variations of the total dustfall and various inorganic elements in the local ambient air and then to finally estimate their dry deposition velocities. To perform the study, the total of 90 dustfall samples were collected from January, 1994 thru February, 1995 in 5 different cities of Korea including Seoul, Suwon, Daejon, Kwangju, and Kangrung. Each sample was analyzed by an AAS and an ICP to determine the quantities of the 11 inorganic elements, such as Zn, Cd, Cr, K, Na, Pb, Ca, Fe, Mn, Mi, and Cu. As results, deposition fluxes, soluble/insoluble fractions, and deposition velocities for each element were extensively investigated. The resulting dry deposition velocities of some elements in Suwon were estimated by ranges of 0.57 .sim. 0.87 cm/sec for Zn, 0.35 .sim. 0.45 cm/sec for Pb, 1.25 .sim. 3.52 cm/sec for Ca, 0.21 .sim. 0.48 cm/sec for Fe, 0.95 .sim. 9.31 cm/sec for Mn, and 2.08 cm/sec for Cu.

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관가정과 향단의 공간구성에 관한 연구 - 사회·문화 및 조영자의 의식을 중심으로 - (A Study on the Spatial Organization of Gwangajung and Hyangdan - Focused on society·culture and consciousness of an architect -)

  • 조우용;이석권
    • 산업기술연구
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    • 제30권A호
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    • pp.119-126
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    • 2010
  • The special characters of traditional architecture has been formed suitably correspond with the purpose of usage and function, which was influenced with various environmental factors such as natural, social, physical, cultural and thoughtful. There was some differences in building placement and space composition according to the regional character such as climate, customs, and a gap of convention (long-established custom) and one's social position system and custom character of family. However, the essential characteristic of traditional architecture are nicely contain the era's architectural character. But these characters are developed or extinct according to the environmental factors. This paper is looking for the elements that formed social cultural element and background architect's thought. And, with the historical background, there are looking for Occupation. A traditional architecture had been formed correspond with the purpose of usage and function, which was influenced with physical nature environment elements such as regional character, climate, customs and social cultural environment elements such as government, economy, society, culture and thoughtful elements.

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Toxic Elements in Edible Mollusks from Igneada Coasts of the Black Sea, Turkey

  • Bat, Levent;Sahin, Fatih;Oztekin, Aysah
    • 식품보건융합연구
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    • 제4권3호
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    • pp.22-31
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    • 2018
  • In this present work, the amounts of toxic elements were determined in the soft tissues of mollusks (Mytilus galloprovincialis and Rapana venosa) collected from Igneada shores of the Black Sea where suggested as Marine Protection Area (MPA). M. galloprovincialis accumulated the highest amounts of Cd in winter, while the highest amounts of Cd and Hg were detected in R. venosa in winter and autumn. The concentrations of toxic elements found in the soft tissues of mollusks varied for Cd: 0.07-0.14, Hg: 0.03-0.44 and Pb: 0.09-0.21 mg/g dry wt. The estimated levels of all non-essential metals in the present work were lower than the limits permitted by European Community Regulation (EU) and the Turkish Food Codex (TFC). The estimated weekly intakes (EWI) and daily intakes (EDI) of all the through consumption of these seafood by Turkish people in the Igneada coasts of the Black Sea were quite below the permissible tolerable weekly/daily intakes for 70 kg person (PTWI / PTDI) set by FAO/WHO. As results, it can be concluded that no hazard effects on people health would be raised at present from the consumption of these mollusks' species.

인도양에서 미량원소 연구 동향 및 향후 연구 방향 (Trace Element in the Indian Ocean: Current Research Trends and Future Needs)

  • 김인태
    • Ocean and Polar Research
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    • 제43권4호
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    • pp.335-352
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    • 2021
  • Trace elements in the ocean have been known as essential micronutrients for the primary production of phytoplankton and the growth of marine organisms. The GEOTRACES program beginning in the mid-2000 provided a new understanding of the distribution, origin and behavior of trace elements in the ocean, together with the establishment of both clean seawater sampling and trace element analysis techniques. The Indian Ocean, one of the major oceans, is relatively the least explored area, despite playing an important role in global climate variability. Although trace element observations have recently been conducted in the Indian Ocean by Japanese-and Indian scientists, relatively not much study has been done compared to the Atlantic, Pacific and Polar Regions. Recently, together with the launch of R/V Isabu, a 5,000-ton grade large- and comprehensive research vessel, the observations of trace elements has been conducted in the Indian Ocean for the first time in Korea since 2018. In this paper, we introduce the key results of currently conducted GEOTRACES expedition in the Indian Ocean to present future trace element research directions in the Indian Ocean, and also reviewed the preliminary results in the Indian Ocean studies from Korea. In the 2020s, new Indian Ocean GEOTRACES projects are planned around European countries, and it is time for Korea to prepare for the next phase of the trace element study in the Indian Ocean in line with these international trends.

현대 공공공간의 스트리트 퍼니처 디자인 특성에 관한 연구 (A Study on Characteristics of Street Furniture Design in Modern Public Space)

  • 황미영
    • 한국실내디자인학회논문집
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    • 제20권4호
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    • pp.191-200
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    • 2011
  • Street furniture such as benches, streetlamps, and shades which are easily accessible in cities has contributed to the promotion of active, lively environment for people living in cities. Furthermore, they make the characteristics of specific regions and cities, and are valued as a communication interface to restore the relationships between people and cities. The street furniture design with inherent publicness is an essential element for leisurely life and refined image of modern people who have experienced severance and mental poverty in uniform, vertical modern city space with the development of advanced science and technology. The purpose of this study is to analyze the new design approaches to street furniture which plays an important role in the determination of the images of modern city environment and to examine the characteristics and trends of such designs. First, in accordance with the flow of studies from publicness and public space to street furniture, the concept and meaning of publicness which is the basic element of public space were identified through theoretical examination, and the characteristics and roles of modern public space were analyzed through literature review, data review, and international cases. Based on the results of this theoretical analysis, the concept and meaning elements, function elements, and design elements of the street furniture which was planned in accordance with the goal and functions of public space were identified. For the meaning elements of street furniture design, fun, health, culture, sustainability, and vitalization were identified. For the function elements of street furniture design, convenience, safety, and delivery were identified. As the characteristics of modern street furniture design, convergent, green, digilog, functional, and universal designs were analyzed. This study is meaningful in that it recognized the roles of street furniture in modern public space as a concrete, practical environmental design element and estimated the development directions of street furniture design in public space.