• Korean Journal of Social Welfare Studies
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• v.41 no.1
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• pp.39-63
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• 2010

This research is to make the identity of the two models clear by reviewing the similarities and differences between Social Model of Disability from U.K. and Independent Living Model from United States. Research results are as follows. As for differences, Social Model of disability intended to change disability paradigm by focusing society itself as the cause of disability rather than individuals, however Independent Living Model stressed on the freedom and control through disabled people's life with self-advocacy group and personal assistants. As for similarities, there are self-representatives, social responsibility for disability, alienation of people with intellectual disabilities at the initial stage, background in legislating Disability Discrimination Acts in both countries. This result has its significances because it shows theoretical framework which make it possible to review further how disability practice and movements understand the two models regardless of their real contents and how the two affected the induction and proceeding of Korean Discrimination Act and Independent Living Paradigm in the Disability Welfare Act.

• Journal of the Economic Geographical Society of Korea
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• v.26 no.4
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• pp.421-442
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• 2023

This research focuses on the fact that the characteristics of migration types of the youth in non-metropolitan areas vary by region and has the primary objective of comparing and analyzing the differences in determinants of each migration type. First, An exploratory analysis of the migration status and characteristics of the youth in non-metropolitan areas was conducted, and then a hierarchical logit model was used to estimate the determinants of migration types separately. The results showed that the characteristics of migration types vary by region, and each determinant of migration types is composed of different bundles of variables(individual and regional levels). In the future, policies aimed at securing young workforce in non-metropolitan areas will be more effective when they take into account various determinants of migration choices and reflect the regional context.

• Journal of Digital Convergence
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• v.11 no.2
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• pp.299-307
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• 2013

The aim of this paper is the improvement of identification performance and the reduction of computational quantities in the face recognition system based on SIFT-Grid. Firstly, we propose a composition method of integrated template by removing similar SIFT keypoints and blending different keypoints in variety training images of one face class. The integrated template is made up of computation of similarity matrix and threshold-based histogram from keypoints in a same sub-region which divided by applying SIFT-Grid of training images. Secondly, we propose a computation method of similarity for identify of test image from composed integrated templates efficiently. The computation of similarity is performed that a test image to compare one-on-one with the integrated template of each face class. Then, a similarity score and a threshold-voting score calculates according to each sub-region. In the experimental results of face recognition tasks, the proposed methods is founded to be more accurate than both two other methods based on SIFT-Grid, also the computational quantities are reduce.

• The Journal of Engineering Geology
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• v.23 no.4
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• pp.341-352
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• 2013

The physical and mechanical properties of red shale and black shale exposed in the Daegu area were investigated in tests conducted to determine unit weight, absorption ratio, porosity, ultrasonic velocity, unconfined compressive strength, point load strength, slake durability index, and deterioration characteristics. XRD, XRF, and SEM analyses were also performed on the shale specimens. While the unit weights of the two shales were similar, the absorption ratio and porosity were higher in the red shale than in the black shale. Despite the higher porosity of the red shale, the ultrasonic velocity, compressive strength, and point load strength were higher in the red shale, which is an unexpected result that may be due to the presence of fine laminations in the black shale. The deterioration rate, as determined from the point load strength and the slake durability index, increased with increasing immersion time and with the acidity of the immersion liquid. The deterioration rate was higher for the red shale than for the black shale because of the higher porosity of the former.

• Journal of the Korean association of regional geographers
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• v.15 no.4
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• pp.449-463
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• 2009

One feature of the multicultural policy practiced in Japan is that the central government stresses the importance of local administrations in executing the policy, providing a systematic framework through which local administrations can actively promote and execute multicultural policy intended to foster social tolerance. In other words, the multicultural policy practiced in Japan seeks to overcome some of the limits and issues inherent to such policy by encouraging the delivery of opinions from below that reflect differences among different localities, while the central government proposes the policy aims and recommendations from above down to local administrations. The multicultural policy of Japan, which allows local administrations to administer such networks by actively carrying out the roles of arbitration and integration within communities where multiculturalism is found, presents meaningful points of comparison and learning to the multicultural policy in Korea that has only recently begun to seek for the aims and ways of multicultural policy from the perspective of social integration.

• Journal of Astronomy and Space Sciences
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• v.26 no.4
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• pp.529-546
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• 2009

Gauss and Laplace methods for initial orbit determination (IOD) are classical orbit determination tools and have been used very efficiently in optical satellite surveillance system. Several studies related to these two methods have been released until now. In this study, we found that the trends of IOD accuracy for different time interval between three pairs of measurement datas show unexpected results. Therefore, we checked the possible cause of these differences. In order to check various orbit types, we used most of satellite data which is able to obtain. To check the characteristics of methodology-only, we used simulated observation data. And we used real observation data for specific satellites to check the characteristics appeared when we applyed these methods to optical satellite surveillance system. As a result, we found that trends of IOD accuracy for time interval could be different because of satellite position observed.

• Journal of Korean Tunnelling and Underground Space Association
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• v.20 no.5
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• pp.773-786
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• 2018

In this paper, viscosity features of sealant (bentonite-cement slurry), which is used for umbrella arch method in tunnel, were studied. The sealant must secure optimal strength and capacity for the waterproof and stabilization of borehole as well as to satisfy groutability. In this study, the variation of viscosity was measured with different mixing processes. With an increase of initial mixing period with water and bentonite mixture, the required time for the rapid increase of viscosity of the sealant is shorten. With increase of mixing period, the possibility of swelling of bentonite will increases and this can lead increase of the viscosity of the mixture. In addition, the behaviors of sealant vary with a drastic increase of the viscosity: thixotropy and rheopexy. Furthermore, the bentonite/water mixing period influences on the bleeding features of the sealant. Further study is required to introduce the guideline, which can be applicable in the field in the aspect of required capacity of the sealants and mixing processes of the ingredients.

• Proceedings of the Korean Vacuum Society Conference
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• 2014.02a
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• pp.265-265
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• 2014

일반적으로 태양전지 및 반도체 공정에서 불순물 주입 과정인 도핑(Doping)공정은 크게 몇 가지 방법으로 구분해 볼 수 있다. 소성로(Furnace)를 이용하여 열을 통해 불순물을 웨이퍼 내부로 확산시키는 열확산 방법과 진공 챔버 내부에서 전자기장을 걸어 이온을 극도로 가속시켜 진행하는 이온 주입(Ion implantation)이나 이온 샤워(Ion shower)를 이용한 도핑 방법이 있다. 또한 최근 자외영역 파장의 레이저광을 조사하여 광화학 반응에 의해 도펀트 물질를 분해하는 동시에 조사 부분을 용해하여 불순물을 도포하는 기법인 레이져 도핑(Laser doping) 방법이 개발중이다. 그러나 레이져나 이온 도핑 공정기술은 고가의 복잡한 장비가 필요하여 매출 수익성 및 대량생산에 비효율적이며 이온 주입에 의한 박막의 손상을 치료하기 위한 후속 어닐링(Post-annealing) 과정이 요구되는 단점을 가지고 있고 열확산 도핑 방법은 정량적인 불순물 주입 제어가 어렵고 시간 대비 생산량의 한계가 있다. 반면 대기압 플라즈마로 도핑을 할 경우 기존에 진공개념을 벗어나 공정상에서 보다 저가의 생산을 가능케 할 뿐아니라 멀티 플라즈마 소스 개발로 이어진다면 시간적인 측면에서도 단연 단축시킬 수가 있어 보다 대량 생산 공정에 효과적이다. 따라서 본 연구에서는 새로운 도핑 방법인 대기압 플라즈마를 이용한 도핑 공정기술의 가능성을 제안하고자 도핑 공정 시 웨이퍼 내 전류 패스(Current path)에 대한 메카니즘을 연구하였다. 대기압 플라즈마 방전 시 전류가 웨이퍼 내부에 흐를 때 발생되는 열을 이용하여 도핑이 되는 형식이란 점을 가정하고 이 점에 대한 원리를 증명하고자 실험을 진행하였다. 실험 방식은 그라운드(Ground) 내 웨이퍼의 위치와 웨이퍼 내 방전 위치에 따라 적외선 화상(IR image: Infrared image) 화상을 서로 비교하였다. 적외선 화상은 실험 조건에 따라 화상 내 고온의 표식이 상이하게 변하는 경향성을 나타내었다. 이 고온의 표식이 전류 패스라는 점을 증명하고자 시뮬레이션을 통해 자기장의 전산모사를 한 결과 전류 패스의 수직 방향으로 자기장이 형성이 됨을 확인하였으며 이는 즉 웨이퍼 내부 전류 패스에 따라 도핑이 된다는 사실을 명백히 말해주는 것이며 전류 패스 제어의 가능성과 이에 따라 SE(Selective Emitter) 공정 분야 응용 가능성을 보여준다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.12
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• pp.80-87
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• 2017

In the past, the United States has been engaged in large-scale urban development projects as a tool for urban regeneration to revitalize distressed urban areas. On the other hand, large-scale urban development projects have been stalled or discontinued globally since the 2008 economic crisis. Despite this, the Hudson Yard development, which is the subject of this study, has resumed smoothly due to the characteristics of its development structure and rational negotiation process. Most domestic developments depend on the economic circumstances, and the problems that are exposed in a privately led development are repeated; the Yongsan International Business District Development is a representative failure case. This study examined the characteristics of the business structure and the nature of the negotiation process in the Hudson Yard development project in New York City.

• Environmental and Resource Economics Review
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• v.13 no.3
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• pp.549-572
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• 2004

This paper develops the methodology for the indexation of Sustainable Development Indicators(SDIs) in 4 sectors(social, environmental, economic, and institutional sectors), and provides the empirical results of Sustainable Development Index(SDI) for Korea from 1990 to 2001. Given 1995 as the basic year, the trend of SDI for Korea displays a slowly curving U-shape. The down trend of SDI until mid-90's results from the decline of SDI in economic and environmental sectors, and the uptrend of SDI after mid-90's results from the sharp rising of SDI in social and institutional sectors. The implication of the results is that Korea generally shows a positive trend toward the sustainable development. However, there should be a careful consideration about partly downward trend in individual SDIs, because of the different trend of SDI in each sector.