• 대한지리학회지
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• 제51권6호
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• pp.915-933
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• 2016

본 연구는 자신들의 일상 공간에 대한 교육대학교 학생들의 답사 활동에서 나타난 지리 교육적 함의를 고찰한 것이다. 답사 활동에 대한 관찰 결과, 교육대학교 학생들은 자료 수집의 방법으로서 설문지와 면담에 대한 의존도가 높았으며, 수집된 정보를 시각 공간 자료로 변환하거나 가공하는 데 다소 미숙하였다. 그렇지만 교육대학교 학생들은 자신들의 답사 활동 경험이나 결과를 장차 초등 지리 교육에 적극적으로 활용하거나 응용하고자 하였다. 이는 교육대학교 학생들의 학습 활동이나 과제 활동에서 나타나는, 이른바 초등 예비 교사로서의 독특한 행동 정향(定向)의 하나로 주목된다. 답사 활동에 대한 자기 및 동료 평가의 결과, 일상 공간에 대한 답사 활동이 지니는 지리 교육적 가치를 분명히 인식한 유의미한 경험이었다는 점, 자신들의 일상 공간에 대한 관심을 높이고 그 의미를 반추할 기회가 되었다는 점, 나아가 긍정적인 장소감을 내면화하고 장소 정체성을 공고히 하는 계기가 되었다는 점 등을 확인할 수 있었다. 이러한 연구 결과는 교육대학교 지리 교육과정에서 답사 방법론 내용을 더욱 체계화할 필요가 있다는 점을 함의한다.

• 대한토목학회논문집
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• 제31권2D호
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• pp.275-284
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• 2011

Supply Chain Management는 제조업에서 부가가치의 60~70%가 제조과정 외부의 Supply Chain(공급체인망) 상에서 발생하는 특성을 가지고 있다. 여기에 기업 간의 경쟁이 치열해짐에 따라 효율적인 프로세스 형성을 위해 비용 및 공정 개선을 위한 노력이 선행되고 있으며, 고객지향, 고객만족, 시장요구에 대한 적응을 위해 공급체인의 혁신을 위한 중요성이 강조되고 있다. 그러나 현 건설산업에서는 협력업체와의 계급적인 구조 문제와 협력업체와의 관계 개선을 위한 의식부족 등으로 인해 SCM의 적용에 많은 어려움이 있다. 건설산업에서도 제조업과 마찬가지로 일부특성상의 상이점이 있지만, SCM의 적용을 통해 건설산업에서의 효율적인 업무 프로세스 개선을 위한 다양한 SCM 연계활동이 가능할 것으로 판단된다. 따라서 본 연구를 통해 건설산업 분야에서의 SCM 전문 교육 프로그램의 개발을 통해 건설 SCM 전문가의 육성과 함께 건설 SCM의 적용을 위한 활성화가 이루어질 수 있는 기틀을 마련하고자 한다.

• 가정과삶의질연구
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• 제30권5호
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• pp.29-47
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• 2012

The purpose of this research is to identify the everyday life culture, housing satisfaction and housing importance of older Korean-Chinese living in Harbin, China. Social survey research using the questionnaire was conducted from August to October in 2011. A total of 94 usable samples were analyzed by the SPSS version the 18.0 statistical program using frequency, percentage, cross-tabulation, factor analysis, and Pearson's correlation. The major findings were as follows. Firstly, older Chinese in Harbin were assimilated into Chinese culture such as national holidays and respectful people, but acculturated in terms of their daily food, and their preference to live in a Korean-Chinese village. Secondly, they had mainly lived in multi-story houses, the so called Chinese-style apartments. The average size of their living space was $80.33m^2$ and they were usually unsatisfied with their neighbors and floor treatment lacking Ondol(溫突). Thirdly, 5 factors affecting on housing value orientation were 'physical characteristics','emotional characteristics', 'economic characteristics', 'social characteristics', 'neighbor characteristics/reputation of the house' and they explained 73.9%. 2 factors affecting on housing satisfaction were 'inner complex/inner space' and 'neighborhood environment' and they explained 69.4%. In conclusion, some policy is needed for Korean Chinese living in Harbin for their well-being when it comes to their housing needs and conditions. Given the nature of big city, Harbin and its attraction, younger Korean-Chinese tend to be rapidly assimilated into Chinese culture. However older people in Harbin think that it is important for their children to learn both countries' languages and cultures in order to be successful, so some concrete policies and supports are needed.

• Transactions on Electrical and Electronic Materials
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• 제3권3호
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• pp.21-24
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• 2002

Two kinds of $Nd_{1+X}Ba_{2-X}Cu_3O_{7-{\delta}}$, the sintering samples and zone melting samples, were heat-treated under pure Ar at 950$^{circ}C$. The substitution of Nd ion for Ba ion in the $Nd_{1+X}Ba_{2-X}Cu_3O_{7-{\delta}}$ before and after the heat treatment was investigated by XRD. In order to confirm the effects of the heat treatment, the Tc and Jc of samples with/without the heat treatment under Ar were comparatively studied. $Nd_{1+X}Ba_{2-X}Cu_3O_{7-{\delta}}$ samples were oxygenated under pure oxygen at $300^{circ}C$. From the XRD pattern it was found that the sample with x<0.4 was transferred from tetragonal phase to orthorhombic phase after the oxygenation, while the sample with x>0.4 did not show the phase transition even after a long time oxygenation. Therefore, the low oxygen partial pressure (Ar+1 % O$_2$) was used for the ambient atmosphere of the zone-melting samples, which could reduce the melting temperature and depress the substitution of Nd for Ba. After the improvement in the zone-melting process, the Jc value was increased to 2 x $10^4$A/$cm^2$ (0 T, 78 K). The particle orientation and the structure of zone-melted NdBaCuO were studied by the XRD and SEM analysis.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1933-1942
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• 2008

Over the years, the Social Republic of Vietnam has demonstrated its high annual growth rate over 8%. In order to secure its sustainable economic growth, its has also demonstrated its sharp concerns on building up core infrastructures by luring foreign investments on a large scale, which would underpin the nation's economic propulsion. Among others, transport infrastructures and networks centering on railway systems are obviously seen as the most urgent to be built to continue its growth. Seoul Metro recently took a significant step forward in Vietnam to launch railway business by executing its export project of 6 units of metro cars to Hanoi as on July 10, 2008. Those 6 cars are scheduled to be put on the tracks linking Yen Bian, Hanoi with Ha Long, for demonstrative running, around October, 2008, carrying tourists on that 163kms of the National Railway line serving the region. A successful running on the track will duly entail further export of additional 54 units of Seoul Metro cars to Vietnam. In this thesis, description will be noted on the reuse and economic value of the Seoul Metro's de-commissioned metro cars, reflecting on the current urban railway law at home regulating the service life of rolling stocks domestically. This thesis will also study the points at issue, and the recommendable future orientation of the Vietnam railway business project.

• Geomechanics and Engineering
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• 제18권6호
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• pp.585-594
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• 2019

In-situ leaching could be one of the promising mining methods to extract the minerals from deep fractured rock mass. Constrained by the low permeability at depth, however, the performance does not meet the expectation. In fact, the rock mass permeability mainly depends on the pre-existing natural fractures and therefore play a crucial role in in-situ leaching performance. More importantly, fractures have various characteristics, such as aperture, persistence, and density, which have diverse contributions to the promising method. Hence, it is necessary to study the variation of fluid rate versus fracture parameters to enhance in-situ leaching performance. Firstly, the subsurface fractures from the depth of 1500m to 2500m were mapped using the discrete fracture network (DFN) in this paper, and then the numerical model was calibrated at a particular case. On this basis, the fluid flow through fractured rock mass with various fracture characteristics was analyzed. The simulation results showed that with the increase of Fisher' K value, which determine the fracture orientation, the flow rate firstly decreased and then increased. Subsequently, as another critical factor affecting the fluid flow in natural fractures, the fracture transmissivity has a direct relationship with the flow rate. Sensitive study shows that natural fracture characteristics play a critical role in in-situ leaching performance.

• 기록학연구
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• 제49호
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• pp.121-173
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• 2016

선거는 국민의 대표를 뽑는 국가의 중요한 이벤트이다. 현재 우리나라의 선거제도는 소수의 의견이 배제될 수밖에 없는 구조적인 한계를 가지고 있고 거대 정당의 독점을 공고화시키고 있다. 이러한 상황 속에서도 직접민주주의 실험, 비례대표의 확대 등 어떤 소수의 민의라 할지라도 현실정치로부터 배제되지 않도록 대안을 제시하고 당내 민주적인 제도화를 통해 실천해가고 있는 녹색당의 활동은 의미가 있으며 선거활동은 그러한 녹색당의 지향과 실천이 발현되는 과정이었다. 일상아카이브를 지향하는 인간과기억아카이브가 선거운동 초반부터 후보 및 선거활동가들과 함께 선거활동 아카이빙을 기획하고 선거 후 어떻게 기록을 분류하여 등록하였는지 살펴봄으로써 일상에서의 정치적인 활동과 지향이 선거라는 특별한 이벤트를 만나는 접점을 일상아카이브로 포착하는 과정을 설명하였다. 지방선거와 총선거 기록은 녹색당의 활동을 증명할 뿐만 아니라 한국 사회의 정치 상황과 선거제도의 한계를 드러내는 기록이면서 그 한계를 뛰어넘으려는 소수정당의 활동을 포착한 기록이다. 녹색당 선거기록이 어떻게 민주주의의 가치를 담고 있고 소수정당에 불리한 선거제도를 자신들만의 방식으로 돌파하는 과정을 보여주고 있는지 살펴봄으로써 녹색당 선거기록 컬렉션이 한국 정치사에 갖는 의미를 살펴보았다.

• International Journal of Computer Science & Network Security
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• 제21권5호
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• pp.57-68
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• 2021

Successfully adapting to digital and customer-oriented transformation, the concept of lean manufacturing professes the philosophy of creating greater benefit while minimizing losses. These losses are operations that do not add value in the production process to ensure the efficiency, flexibility, and profitability of projects. In the context of broad automation and digitalization of all sectors of the economy, mechanisms for combining automation technologies and lean production are becoming available. Moreover, when it comes to the efficient use of financial, human, or material resources, it is clear that the use of Industry 4.0 technologies can be an effective tool for achieving the goals of lean production, as many of them pursue the same goal. In this context, this article aims to study the effectiveness of the implementation of project management concepts at the global level and identify the main factors influencing its effectiveness to ensure the achievement of lean production through LEAN technologies and Industry 4.0 technologies. To achieve this goal, several statistical indicators were selected and several statistical methods of analysis were used: pairwise correlation, regression analysis, methods of comparison, synthesis, and generalization. Statistical analysis was conducted according to a survey conducted by the Project Management Institute (PMI) in 2020. An economic-mathematical model of dependence of project effectiveness in different regions of the world on the level of implementation of project management approaches is built, which shows that the increase in project effectiveness by 85% is due to financial losses, technical training, and consumer orientation. These results allow project managers to develop appropriate strategies to improve project management approaches at all levels. It is established that LEAN technologies and technologies of Industry 4.0 have several tools that have a positive effect on minimizing losses following the concept of lean production. Besides, given that the technology of Industry 4.0 is focused on the automation of Lean Production technology, a mechanism for the introduction of lean production using these technologies and methods.

• Bulletin of the Korean Chemical Society
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• 제13권3호
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• pp.268-274
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• 1992

An attempt to improve the second harmonic generation (SHG) efficiency of MAP (methyl (2,4-dinitrophenyl)aminopropanoate) by modifying the substituents on the amino group of MAP is described. Several MAP analogues have been prepared using optically active amino acids alanine, phenylalanine and serine, and their SHG efficiencies measured. None of the MAP analogues exhibited SHG efficiencies as high as that of MAP. X-ray crystal structures of three MAP analogues have been determined. In the crystal structures of two of them, which were the derivatives of phenylalanine, two crystallographically-independent molecules existing in the asymmetric unit are aligned almost antiparallel. These structures are consistent with the very low SHG efficiencies of these compounds. On the other hand, the crystal structure of a serine derivative reveals substantial alignment of the dinitroaniline chromophore along the polar axis. However, the angle of 86.2° between the molecular charge tranfer axis and the polar axis of the crystal is still far away from the optimum value of 54.74° for the phase-matchable SHG. The structure is consistent with the SHG efficiency of this compound which is much higher than those of the phenylalanine derivatives but still lower than that of MAP. This study demonstrates the importance of the orientation of molecules in the crystal lattice in determining secod-order nonlinear optical properties of crystalline materials.

• International Journal of Advanced Culture Technology
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• 제10권3호
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• pp.184-191
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• 2022

Unity Painting is a concept that the researcher put forward to locate his own creative style in his creation. Unity Painting, with a clue of reflecting the characteristics of contemporary oriental visual culture, combines the contemporary painting features of a variety of western painting languages. It aims to link the painting system formed in the context of oriental culture with the world's contemporary art and try to present a new contemporary painting with oriental genes. According to the Chinese literature, the researcher sorted out the five main colors (五正色), ten colors for Heavenly Stems (十天干色彩), five intermediate colors (五间色), and five colors as the expression of the Chi of Thriving and Fading and the Chi of Birth and Death, and deduced the summary and stipulation of the color of yin-yang and five elements under the concept of Unity Painting. Based on this, the researcher drew the color-phase and its variation stipulation diagram of ten colors for Heavenly Stems, the orientation of Heavenly Stems (天干方位), color-phase variation diagram (色相变化图), as well as the stipulation system diagram of the five elements (五行), Heavenly Stems and Earthly Branches (干支), energy, time and colors. Through the research and collation of the literature, the researcher took the stipulated five elements color (五行色彩) as the basis of the color concept of creation to complete the work. This paper discusses how to find the starting point of contemporary art creation in the context of traditional oriental culture, sorts out the practical creation logic, and provides ideas for subsequent researchers, with a view to better establishing the identity of the creator and providing research significance and value in the context of the study of oriental art.