• Title/Summary/Keyword: 상호확산

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A Study on the Link of Building Information and Cadastral Information as Spatial Information (공간정보로서의 지적정보와 건물정보의 연계에 관한 연구)

  • Kim, Chang-Hwan;Lee, Won-Hui
    • Journal of the Korean Association of Geographic Information Studies
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    • v.17 no.3
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    • pp.93-103
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    • 2014
  • Regarding to the cadastral information and building information as a spatial information, studies on linking between cadastral records and building information, or integration methodology on 2D based building map and land information were proposed. Cadastral information has grown its values by cadastral resurvey project and cadastral confirmation survey. There is a tendency of BIM in the design stage which is not just simple 3D dataset and BIM is spreading in public and private sectors. However, studies on the linkage between building information and cadastral information is relatively weak comparing to the BIM spreading. One of the main features that have been improved in IFC4 is the interoperability with GIS. In this regards, the researcher propose several revision methods to link cadastral information to building information. Cadastral information needs to improve the quality of the dataset's such as unifying the different coordinate systems and preparing continuous cadastral map. For buildings, standardization of BIM in the public and private sectors is urgent task. IFC4 and upcoming IFC5 are international standards which need to be considered and BIM reverse engineering for the existing buildings is necessary for the public utilization in the near future.

Enhancing Regional Innovation System Potential: The Dimension of Firm Practices (지역혁신체제 잠재성 향상의 조건: 기업의 혁신활동을 중심으로)

  • Jong Ho Lee
    • Journal of the Economic Geographical Society of Korea
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    • v.6 no.1
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    • pp.61-77
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    • 2003
  • Finns are central economic agents that play an important role in systems of innovation as they take responsibility for generating and diffusing knowledge in both organizational and societal context. They must be considered as learning organizations which interact with other finns and institutions that share their environment. The systems of innovation literature accentuates institutional conditions that influence innovation in sectoral, regional or national levels. Meanwhile, it tends to ignore the complex dimensions of finn practices in relation to learning and innovation activities. In this context, this paper attempts to examine what finns do for sustaining innovation and how they learn to innovate. This is not just critical to know individual finns innovativeness which depends on interactions with environments within and outside the organizational boundary but also to evaluate the regional innovation system potential. In short, it is important to see that finns would attempt to take advantage of distributed knowledge within and across the boundaries of the finn without sticking to particular regional innovation systems. I argue that the more finns of a cluster attempt not only to combine localized sources of knowledge and external sources of knowledge but also to become a learning organization, the more increased regional innovation system potentials can be.

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Interoperability Analysis for BIM software Based on User-defined Properties (BIM 소프트웨어 호환성 분석 : 사용자정의 속성정보인 GBS를 중심으로)

  • Kang, Seunghee;Ha, Jiwon;Ju, Taehwan;Jung, Youngsoo
    • Korean Journal of Construction Engineering and Management
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    • v.17 no.2
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    • pp.99-109
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    • 2016
  • The utilization of Building Information Modeling (BIM) has increased in order to enhance the integration of information for management and resources throughout the construction projects. Therefore, various BIM softwares have been used under open BIM environments in the building and plant construction industry. However, it has obstructive factors due to the lack of interoperability. In order to address this problem, this study conducted an interoperability analysis of BIM software focused on user-defined properties for enhanced function and efficiency. Result of the analysis shows that authoring tools have more interoperability problems than viewer tools and simulation tools have. In terms of interoperability, user-defined properties outperforms than those of system basic properties and logic data. Therefore, it was found that functional improvement and workload minimization in BIM can be attained by applying the GBS (an user-defined property for automatic manipulation of BIM proposed by Jung et al. 2013) that enables automatic link between geometric data and non-geometric data. In this respect, this study concludes that the application of user-defined property (e.g. GBS) can be an effective method for information integration throughout construction projects.

A Chemical Study of the Periodic Precipitation Reaction in Natural Rocks (자연 암석에서 나타나는 주기적침전반응의 화학적 연구)

  • Jun, Sang-Ho;Han, Mi-Ae
    • Economic and Environmental Geology
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    • v.40 no.4
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    • pp.491-496
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    • 2007
  • This study conducted a chemical experiment on the Leisegang phenomenon, which is known to be the principle of rhyolite formation, and analyzed the results. Even if the same chemical elements precipitated, the shape of Leisegang rings was different according to the condition of medium and depending on inner electrolyte and outer electrolyte. The experiment used agar, gelatin and mung-bean jelly as media. We prepared 0.01M inner electrolyte containing agar 1%, gelatin 2% and mung-bean jelly 5% and curdled the solution at room temperature for 12 hours and, as a result, we obtained viscosity optimal for experimenting on the diffusion of outer electrolyte, and Leisegang rings appeared clearly according to the characteristic of each chemical element. In $PbI_2$ with solubility product($K_{sp}$) of $7.9{\times}10^{-9}$ the intervals of Leisegang rings caused by the reaction of inner electrolyte 0.01M KI and outer electrolyte 25% $Pb(NO_3){_2}$ were narrow between 0.01cm and 0.12cmm but increased gradually, but in with of $8.3{\times}10^{-17}$ the intervals of Leisegang rings caused by the reaction of inner electrolyte 0.01M KI and outer electrolyte 25% $AgNO_3$ were between 0.7cm and 0.45cm and decreased gradually. This suggests that, in the chemical formation of Leisegang rings, the interval and size of the rings are correlated with the solubility product of the precipitates.

Influence of Functionalization of Silica with Ionic Liquid on Ethylene Polymerization Behavior of Supported Metallocene (실리카의 이온성 액체 기능화가 메탈로센 담지촉매의 에틸렌 중합 거동에 미치는 영향)

  • Lee, Jeong Suk;Lee, Chang Il;Ko, Young Soo
    • Applied Chemistry for Engineering
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    • v.27 no.1
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    • pp.86-91
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    • 2016
  • Three amorphous silicas and SBA-15 were employed as supports, which were capable of confining ionic liquid (IL) and metallocene in the nanopore. Ionic liquid functionalized silica was prepared by the interaction between the chloride anions of 1,3-bis(cyanomethyl)imidazolium chloride and the surface OH groups. Metallocene and methylaluminoxane (MAO) were subsequently immobilized on the ionic liquid functionalized silica for ethylene polymerization. The metallocene supported on ionic liquid functionalized XPO-2412 and XPO-2410 having a larger pore diameter compared to SBA-15 showed higher activity than that of using supported catalyst without ionic liquid functionalization. However, the activity of metallocene supported on SBA-15 decreased after ionic liquid functionalization, suggesting that the diffusion of ethylene monomer and cocatalyst to the active site of nanopore was restricted during ethylene polymerization. This could be resulted from significant reduction of the pore diameter due to the immobilization of ionic liquid and $(n-BuCp)_2ZrCl_2$ and MAO. The effect on polymerization activity in accordance with the concentration of hydroxyl groups on the surface was also investigated. The polymerization activity increased as the concentration of hydroxyl groups on amorphous silica increased. The polymerization activities of metallocene supported on silica showed the similar trend after ionic liquid functionalization.

Morphological and Photoluminescence Characteristics of Laterally Self-aligned InGaAs/GaAs Quantum-dot Structures (수평 자기정렬 InGaAs/GaAs 양자점의 형태 및 분광 특성 연구)

  • Kim J. O.;Choe J. W.;Lee S. J.;Noh S. K.
    • Journal of the Korean Vacuum Society
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    • v.15 no.1
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    • pp.81-88
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    • 2006
  • Laterally self-aligned InGaAs/GaAs quantum-dots (QDs) have been fabricated by using a multilayer stacking technique. For the growth optimization, we vary the number of stacks and the growth temperature in the ranges of 1-15 periods and $500-540^{\circ}C$. respectively, Atomic force microscope (AFM) images and photoluminescence (PL) spectra reveal that the lateral alignment of QDs is enhanced in extended length by an increased stack period, but severely degrades into film-like wires above a critical growth temperature. The morphological and the photoluminescence characteristics of laterally self-aligned InGaAs QDs have been analyzed through mutual comparisons among four samples with different parameters. An anisotropic arrangement develops with increasing number of stacks, and high-temperature capping allows isolated QDs to be spontaneously organized into a one-dimensionally aligned chain-like shape over a few ${\mu}m$, Moreover, the migration time allowed by growth interruption plays an additional important role in the chain arrangement of QDs. The QD chains capped at high temperature exhibit blue shifts in the emission energy, which may be attributed to a slight outdiffusion of In from the InGaAs QDs.

A Comparative Study on the Consumer Behavior between Online and Offline Channels (온라인과 오프라인 유통경로에서 소비자 구매행동에 대한 비교연구 -제품유형과 구매속성 중요도를 중심으로-)

  • Park, Chul
    • Proceedings of the Korean DIstribution Association Conference
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    • 2001.11b
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    • pp.145-163
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    • 2001
  • 최근 인터넷 상거래가 급속히 확산되면서 기업의 경쟁이 실물세계와 가상세계에서 발생하는 현상이 전개되고 있다. 즉, 유통경로의 측면에서 볼 때 기존의 물리적 세계에 존재하는 전통적인(오프라인) 유통경로와 사이버공간에 존재하는 가상(온라인) 유통경로가 서로 경쟁하는 형국이 벌어지고 있는 것이다. 유통경로간 경쟁의 중심부에는 고객이 자리잡고 있다. 어떤 경로든 소비자의 욕구를 정확히 파악하고, 이들에게 최상의 유통서비스를 제공하는 경로는 생존·번영할 수 있을 것이다. 사실 현재 진행되고 있는 논의들과 현상들을 볼 때, 어느 한 유통경로가 다른 유통경로를 완전히 대체하는 제로섬 게임의 양상은 나타나고 있지 않다. 즉, 상당기간 두 유통경로는 상호 병존할 것으로 보인다. 본 연구는 이러한 점에 초점을 맞추어 이들 두 경로가 자신들만의 차별화된 경쟁우위를 가지고 생존할 수 있는 마케팅전략을 구상하기 위해 시도되었다. 이러한 전략을 제시하기 위해서는 우선 이들 두 경로상에서 소비자의 구매(쇼핑)행동은 어떻게 다른가에 대한 비교연구가 선행되어야 할 것이다. 본 연구는 온라인 유통경로와 오프라인 유통경로에서 소비자 구매행동의 차이를 비교분석 하는데 그 목적을 두고 있다. 특히 제품유형별로 온라인과 오프라인에서 구매속성중요도가 어떻게 달라지는가를 확인. 검증해 보기 위해 시도되었다. 캐주얼의류, 여행상품, 음악CD를 가지고 인터넷 사용자 500명을 대상으로 온라인조사를 실시한 결과, 온라인과 오프라인에서 구매속성 중요도에는 유의한 차이가 나타났다. 이 결과를 토대로 오프라인 매장과 온라인 매장이 어떻게 차별화해야 하는가에 대한 시사점을 제시하였다.통계적인 차이가 있었다(P<0.05). 계육내 CLAisomer는 1, 2, 3% 급여구에서 각각 12.23, 18.74, 25.67 mg/g으로 처리구간에 현저한 차이를 보였다(P<0.05). 본 연구의 결과 CLA의 급여는 SBO와 CT에 비하여 증체량을 개선하고 혈중HDL을 높여주는 경향을 보였지만 ND항체가는 개선되지 못하였다.으며, 그 효과는 농도에 의존적이었다, 고콜레스테롤 투여군(HC)의 분변 중 총 지질과 중성지방 농도는 정상대조군(C)에 비해 다소 높았고, 총 콜레스테롤의 경우는 유의적으로 높게 나타났다. 그러나 뽕잎첨가군(HC5M과 HC10M)의 총 지질, 중성지방 및 콜레스테롤 농도는 콜레스테롤 투여군(HC)에 비해 분변으로 배설량이 증가하는 현상을 보였다. 이상의 결과를 살펴보면 뽕잎 분말은 고콜레스테롤식이를 섭취하는 경우 혈청과 간장의 지질수준은 떨어뜨리고, 분변중 지질배설량을 상승시키는 효과가 현저한 것으로 보인다.둘째. 1990년대 한국과 미국 패션시장의 가격과 품질간의 상관계수의 범위는 제품군별. 산업범주별 로 상이한 분포를 보이고 있었다. 패션제품군별로 보 면, 한국의 경우는 가장 높은 '여행용가방(r = 0.707)' 에서 가장 낮은 '자외선 차단화장품(r = -0.58)'까지, 그리고 미국 패션제품군의 상관계수의 범위는 '팬티 스타킹'의 0.820에서 '남성용 런닝슈즈'의 -0.472까지의 분포를 나타냈다. 마지막으로, 제품의 가격과 품질에 대한 정보를 소비자가 알 경우 얻을 수 있는 소비자의 구매이득 을 추산한 결과 패션제품시장에서 완전한 품질정보를 가지고 있다고 가정한 '현명한 사람'은, 최고가격의 제품만을

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Exploring on Possibility of Learning with Robots in the Elementary School Curriculum (초등 정규 교육과정에서 교구 로봇 활용 교육의 가능성 탐색)

  • Park, Ju-Hyun;Han, Jeong-Hye;Jo, Mi-Heon;Park, Ill-Woo;Kim, Jin-Oh
    • 한국정보교육학회:학술대회논문집
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    • 2010.08a
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    • pp.15-18
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    • 2010
  • As robots are proved to be effective in enhancing students' creativity and problem-solving abilities and satisfying various needs in special education for the gifted, many students participate in private education and after-school robot classes. However, it is difficult for students in the lower social economy class to use robots for their learning because of the high expense of robots. On this point, as a part of u-Learnng project, this research attempts to provide students in the lower social economy class with the opportunities to use robots for one year. At the end of the year, we will compare the experimental group and the control group in order to examine learning effects of using robots. Until now we have found many cases that show positive effects of the use of robots in students' learning.

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The Development Scheme of Domestic Third Party Logistics for Revitalization of Electronic Trade (전자무역의 활성화를 위한 국내 제3자물류 발전방안)

  • Cha, Soon-Kwean;Jang, Heung-Hoon
    • Journal of Korea Port Economic Association
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    • v.24 no.2
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    • pp.155-174
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    • 2008
  • This paper proposed several activation strategies at both the government and company parts for the development of domestic third party logistics(TPL) to pull electronic trade era much earlier. In the government side, it must need to arrange and integrate complex regulation rules on the Logistics for more smooth access and use the TPL market. Also, it has to provide multiple support policies such as tax reduction, technical and financial service providing, and logistics information system to TPL. Finally, it should construct the government levels education system to train and forster a competent man who is well qualified as a electronic and logiscic expert. The TPL company must build up a total logistics information system concerned with an innovative operation system such as SCM, JIT etc. which can provide logistic services on demand to the electronic trade customers to maximize consumer satisfaction. In the shipper company level, it try to join a long-term strategic alliance with TPL to reduce logistic cost and increase logistic service to its electronic trade consumers.

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Character of Achievement Goal and Learning Styles of the First year Students in Department of Occupational Therapy and Physical Therapy (작업치료학과와 물리치료학과 1학년 학생들의 학습유형과 성취목표 지향성의 특성)

  • Roh, Hyo-Lyun;Kang, Shin-Wook
    • The Journal of Korean society of community based occupational therapy
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    • v.2 no.1
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    • pp.65-73
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    • 2012
  • Objective : The purpose of this study is to provide basic information for professional education by investigating to learning styles and achievement goal of the first year students in the department of occupational therapy and physical therapy. Methods : 123 first year students of the department of occupational therapy and physical therapy filled out a questionnaire in Gyeongbuk and Kangwon Province. In this study, Kolb's Learning Styles and Elliot & Church's Achievement Goal were used, and to analyze, Pearson correlation, chi-square were used. Results : The results of the study were as follows. 'Accommodator' was the preferred learning type for students, while 'diverger' was not. Collage students differed from university students in learning styles. A mastery level was the preference in the academic goal types of the students. Male students received higher grades on performance approach goals than female and student of department of physical therapy received higher grades on performance avoidance goals than students in the department of occupational therapy. There is a coefficient of correlation between performance avoidance goal and converger learning type. Therefore, first year students in the department of occupational therapy were not differed from the department of physical therapy in academic achievement but collage students differed from university students in learning styles. Conclusion : From these results, we suggested some effective teaching/learning methods based on the mastery achievement goal. An educational approach is necessary for understanding of the students' individual learning styles and achievement goal characteristics are account for students' individual negative/positive characteristics.

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