• Tunnel and Underground Space
• /
• v.28 no.3
• /
• pp.193-208
• /
• 2018

In order to interpret rock slope safely and effectively, the mechanical properties of the rock must be carefully investigated. However, due to the limitations of clinometer usage, a new measure of measurement is required to complement these limitations. In this study, a measuring device was developed to analyze the characteristics of joint orientation, and to apply the orientation of joint to the field. The developed measuring equipment is divided into analysis software and hardware. The hardware was composed of a measuring module that measures the joint orientation of rock and a transport module that transmits the measurement data. The software was developed to analyze the orientation of the joint from the data obtained from the measuring module and is named Drone Joint Orientation Survey Measurement. The developed measuring equipment was well field capable if it could not be measured by the inspector, such as in areas where access was difficult, and was capable of effectively analyzing the lab test results for the orientation of the joint.

• Journal of the Korea institute for structural maintenance and inspection
• /
• v.22 no.4
• /
• pp.91-99
• /
• 2018

Mechanical Properties of Rock Slope as a safe and effective interpretation should be thoroughly investigated. Clinometer, however, this new measurement due to the restrictions of the research for the joint orientation is needed. In this study, characteristics of the joint orientation can be used to analyze the joint orientation of developing a joint survey system that can be applied to the field. The system is developed and Analysis software to hardware. Hardware is composed to measure the joint orientation of measuring module, measuring the transfer of data transfer module. From the software is measuring module from the data to analyze the orientation of the joint development, and drone joint orientation survey system named. Can not be measured by the investigation, including regional development approach is a system that has been difficult if the Field Application of the lab test results of the joint orientation and effectively.

• Therapeutic Science for Rehabilitation
• /
• v.5 no.1
• /
• pp.77-87
• /
• 2016

Objective : The purpose of this study is to investigate the impact of task-oriented approach based on upper limb coordinated movement on the ability of the Korean handwriting in children with developmental coordination disorder(DCD). Methods/Design : This randomized controlled trial designed as a pre-/post- test will compare the effectiveness of task-oriented approach and process-oriented approach on handwriting performance for children with DCD aged 5 to 10. These interventions consist of 10 training sessions and 4 assessment sessions over 7weeks. Children will be measured regard to handwriting legibility, speed and pre-handwriting skills including upper limb movement skills, visual perception and visual motor coordination. Conclusion : This is the first attempt to investigate effects of a task-oriented approach in children with DCD. The significance of this study is to provide the clinical evidences to apply the task-oriented approach improves the children's handwriting performance. Furthermore it will also present a more effective intervention for handwriting by figuring out each approach's impact on the improvement of pre-handwriting skills.

• Journal of Digital Convergence
• /
• v.18 no.6
• /
• pp.287-295
• /
• 2020

This study defined the characteristics of micro-learning emerging by mobile learning and micro-contents in the e-learning field, and analyzed the satisfaction of application, to see if micro-learning could become a new learning type in the future. To this end, the characteristics of micro-learning were defined through preliminary literature analysis, the characteristic satisfaction was verified in the well-equipped micro-learning site, and any other technical functions were suggested through expert opinion gathering. It was suggested that the future technology of e-learning should be linked to technical functions such as learning analysis and performance measurement. According to the results of this study, if micro-learning reflects its functional characteristics well, it will become an effective learning type in the e-learning field and will greatly contribute to education, learning, and training for the new millennial.

• Journal of the Microelectronics and Packaging Society
• /
• v.4 no.2
• /
• pp.25-32
• /
• 1997

대용량, 고속 정보처리가 요구되는 System의 모듈은 Data 처리의 고속성 및 회로의 고집적이 가능한 MCM의 형태로 구현되어 ATM, GPS 및 PCS 등의 분야에 광범위하게 응 용되고 있다. 위와 같은 High Speed 응용분야에서의 System 성능은 Interconnect Line의 전달지연, 임피던스 부정합에 의한 신호 반사 손실. 신호선 간의 Crosstalk, Ground Bounce 등의 현상에 대한 최적화 여부에 결정적인 영향을 받는다. 그러나 Interconnect의 특성상 정 형이 존재하지 않으므로 추상적인 Library를 구축하는 형식으로 접근할 수밖에 없으며 이를 위하여 여러기본 구조를 정의한후 각 Dimension을 변수로 두고 해석 결과를 합성하여 Database화하는 접근방식이다. 본 논문에서는 MCM-D 공정을 이용하여 Interconnect Line 특성을 분석하고 Database화 하기 위한 Test Pattern을 구현하고 Time Domain reflectometry(TDR)을 이용하여 그특성들을 측정 분석하였다. Test pattern 제작은 MCM-D 공정으로 최소선폭 27$\mu$m, Via Hole 75$\mu$m으로 형성하였고 2 Layer Signal과 GND로 총 3Layer를 구현하였다. 특성분석을 위해 TDR장비와 모데링 및 Simulation S/W인 IPA 510 을 사용하였다. 이를 통해 MCM-D를 이용한 공정에서 Interconcet Line의 고주파 특성을 측정하고 정량화하여 LIbrary를 제작할수 있었다.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.14 no.4
• /
• pp.221-237
• /
• 2011

This study aims to investigate the environmental equity of the accessibility to urban neighborhood parks in the city of Daegu. The spatial distribution of urban neighborhood parks was explored by spatial statistics and the spatial accessibility to them was then evaluated by both minimum distance and coverage approaches. Descriptive and inferential statistics such as proximity ratio, Mann Whitney U test, and logistic regression were used for comparing the socioeconomic characteristics over different accessibilities to the neighborhood parks and then testing the distributional inequity hypothesis. The results from the minimum distance method indicated that Dalseo-gu had the best accessibility to the neighborhood parks while Dong-gu had the worst accessibility. It was apparent with the coverage method that Dalseo-gu had the best accessibility whereas Dong-gu and Nam-gu had the worst accessibility to the neighborhood parks at 500m and 1,000m buffer distances. There existed the spatial pattern of environmental inequity in old towns with respect to population density and the percentage of people under the age of 18. The spatial pattern of environmental inequity in new towns was explored on the basis of the percentage of people over the age of 65, the percentage of people below the poverty level, and the percentage of free of charge rental housing. These results were closely related to the development process of urban parks in Daegu stimulated by the quantitative urban park policy, urban development process, and residential location pattern such as permanent rental housing and free of charge rental housing. This study further extends the existing research topics of environmental justice related to the distributional inequity of environmental disamenities and hazards by focusing on environmental amenities such as urban neighborhood parks. The results from this study can be used in making the decisions for urban park management and setting up urban park policy with considering the social geography of Daegu.

• Proceedings of the KAIS Fall Conference
• /
• 2011.05a
• /
• pp.478-481
• /
• 2011

본 연구는 GIS를 이용하여 물리적 공간 차원에서 특정 지역 거주자의 물리적 공간 차원에서 공공시설 향유도를 분석하여 평가하는것을 목적으로 한다. 향유도 평가를 위해서는 향유도를 측정할수 있는 지표와 (GIS를 이용한) 지표 값 계산 도구의 개발이 필요하다. 지표는 접근성 및 사용가용량이 고려된다. 사용가용량은 특정 주택으로부터 일정거리 이내에 존재하는 공공시설의 가용량의 합을 말한다. 지표 값을 계산하기 위해선은 GIS를 활용한다. GIS를 통한 향유도 평가 결과는 특정 지역 거주자가 일정거리이내 공공시설에 대한 접근성을 고려하는 동시에 공공시설에 대한 사용가용량을 종합 비교하여 보여준다.

• Proceedings of the Korean Association for Survey Research Conference
• /
• 2001.06a
• /
• pp.109-127
• /
• 2001

그 동안 사회과학 분야에서의 연구는 논리실증주의의 객관성 중시 사고가 지배해왔다. 그 결과 객관적인 측정과 변수들 간의 관계에 대한 타당성에 중점을 개인간 (interindividual)의 비교에 대한 연구가 주를 이룸으로써 개인의 주관성이 반영되어 나타나는 다양한 자극들에 대한 개인내(intraindividual)의 반응의 차이에 대한 연구가 부진하였다. 사회과학분야에서 중요한 연구대상이 되는 인간의 독특성은 바로 개별 주체들이 가지고 있는 주관성에 있다고 해고 과언이 아닌데 실증주의자들이 사용해 온 계량적 접근방법으로는 인간의 본질적 속성인 주관성에 대한 연구에 한계가 있다. 이러한 문제를 해결하기 위해 Q 방법의 방법론적 특성과 실제 적용에 대해 알아본다.

• 한국IT서비스학회:학술대회논문집
• /
• 2006.11a
• /
• pp.271-278
• /
• 2006

IT 조직의 활동에 대한 성과 평가는 과거 재무적인 평가방법이 주를 이루었으나 최근에는 정보시스템 기능과 활동 주체가 다양해짐에 따라 재무적인 접근방법과 함께 새로운 평가 방법 및 기준에 대한 연구가 진행되고 있다. 특히 균형 성과표 (Balanced Scorecard: BSC) 개념을 IT 활동 평가에 적용한 IT-BSC에 대한 연구도 이루어지고 있다. 그러나 정보시스템과 기업전략과의 관계에 대한 규명이나, 다양한 IT 성과측정지표들간의 연계성을 측정하는 연구는 이루어지고 있지 않은 실정이다. 이에 본 본 연구에서는 IT 조직의 성과평가를 위한 핵심성공요인(CSF)과 핵심성과지표(KPI)를 도출하고, 도출된 지표간의 인과관계를 검증하고자 한다. 본 연구의 결과로 도출된 영역과 지표들은 각 산업영역에서 IT 조직의 성과를 측정할 때 참고하고 적용할 수 있는 효과적인 지침으로 활용될 수 있다는 데에 연구의 의미를 둘 수 있다.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.25 no.3
• /
• pp.29-58
• /
• 2022

Recently, Korea has been experiencing a problem of population decline, therefore the transition to a compact spatial structure is being urged. However, what is required is not just physical compression, but a compact city that also considers connectivity, in view of the changes in today's demographic and industrial structure. From this point of view, this study measures the compressibility of domestic cities suffering from extinction risk due to low birth rates, aging population, and population decline, and examined the spatial structure characteristics. In addition to the compressibility evaluation index used in previous studies, the compressibility of six indicators (population, land use, service accessibility, transport accessibility, connectivity, and concentration) was compared and analyzed, and a comprehensive compression index was calculated. The analysis results, based on the comprehensive compression index, classified 2.3% cities in the first grade, 4.6% in the second grade, 16.09% in the third grade, 43.68% in the fourth grade, and 33.33% in the fifth grade areas. Currently, the urban characteristics affecting the compactness index differ from region to region. Therefore, it is necessary to establish measures and policies for extinction risk considering the influence of each region's compactness index. This study is meaningful in that connectivity was considered using spatial syntax, and the compactness of cities at risk of extinction was compared and analyzed quantitatively. It is expected that this study will be used as basic data to establish the direction and action strategy for extinction risk cities.