• Proceedings of the Korean Information Science Society Conference
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• 2011.06d
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• pp.156-158
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• 2011

최근 핵가족 및 1인 가구 형태의 주거문화 가속화로 인해 독거노인 건강 및 복지문제, 맞벌이자녀의 양육문제 등이 자연스럽게 대두되기 시작하였고 원격지에 떨어져 사는 가족 구성원간의 커뮤니케이션 기회 상실로 가족 유대감이 점차 저하되면서 뿌리 깊게 이어진 우리나라의 가족 중심문화의 해체현상이 급속화 되어가고 있다. 따라서 본 논문에서는 이러한 사회문제 해소를 위해 광대역 통신망 및 유비쿼터스 기술을 활용하여 원격지 사이의 공간을 하나로 연결하는 가상공간을 구축하여 장소, 시간에 구애 없이 멀리 떨어져 사는 가족 간에 실제 대면하듯이 커뮤니케이션을 하고 정서적 교감을 나눌 수 있는 방안 연구하고 제안하였다. 유비쿼터스 환경은 인간사회에 큰 영향을 줄 것이며, 다양한 기술이 발전하여 언제 어디서나 네트워크를 기반으로 인간과 인간, 인간과 사물 간에 통신이 가능하도록 하는 3차원 커뮤니케이션 공간을 가능하게 할 것이다. 본 연구는 이러한 3차원 커뮤니케이션을 통한 가족 간의 의사소통과 유대감을 높일 수 있도록 가상공간을 활용하는 것에 대하여 제안하였다.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.31 no.2
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• pp.18-24
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• 2023

According to the results of a survey by Boeing, LOC-I (Loss of Control in Flight) was the highest in the number of deaths by fatality accident category in the past 10 years from 2012 to 2021, and the number of deaths worldwide due to LOC-I accidents was 757. It turned out to be the biggest cause of aircraft fatalities, with a figure close to twice the sum of UNK (Unknown or Undetermined), which is the 2nd place, and CFIT (Controlled Flight Into or Toward Terrain), which is the 3rd place. This study set six scenarios related to spatial disorientation that may occur during sensory-dependent flight targeting student pilots and instructor pilots at domestic designated specialized educational institutions using flight simulation training equipment, and in each scenario, the pilot's. The need for SDRT (Spatial Disorientation Recovery Training) is verified by analyzing the flight experience and recovery ability by qualification, and SDRT is repeatedly performed to verify and present the training cycle and time.

• Journal of the korean academy of Pediatric Dentistry
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• v.43 no.2
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• pp.187-191
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• 2016

Early loss of a primary second molar can cause mesial drift or tilting of the permanent first molar. We present a case of the early loss of the mandibular primary molars in a 5-year-old girl. The patient required extraction of the mandibular left primary first and second molars due to folliculitis on the successors. A flexible denture was used for eruption guidance of the permanent first molar and the recovery of masticatory function simultaneously.

• The Journal of Korean Academy of Prosthodontics
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• v.58 no.2
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• pp.153-160
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• 2020

Gradual tooth wear is a natural process of aging, but pathological wear over physiologic ranges leads to functional and esthetic problems. The loss of posterior support may cause pathological wear of anterior teeth, which results in reduction of vertical dimension and disharmony of occlusal plane. To solve this problem, determination of proper vertical dimension considering centric relation is necessary. This case report presented 71-year-old male, who had the severe wear of lower anterior teeth due to loss of posterior support. By meticulous evaluation, a full mouth rehabilitation with elevation of vertical dimension was planned. After 8 months of follow-up, stable occlusal scheme is maintained and patient was satisfied with clinical outcome functionally and esthetically.

• The Journal of Korean Academy of Prosthodontics
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• v.55 no.2
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• pp.205-211
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• 2017

Loss of posterior support may cause extrusion of antagonistic teeth and excessive wear of remaining teeth which often leads to the destruction of the occlusal plane. In such cases, it is critical to verify the need to increase vertical dimension of occlusion (VDO). Should you increase VDO, provisionalization is crucial in evaluating function and esthetics. Double scanning technique is a useful method when fabricating definitive restoration that mimic provisional restoration. In this case, a patient with apparently no loss of VDO and insufficient interocclusal space for dental materials due to loss of posterior support and extrusion of antagonistic teeth was rehabilitated using double scanning technique.

• Journal of KIISE:Databases
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• v.31 no.1
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• pp.13-22
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• 2004

With the proliferation of multimedia data, there is an increasing need to support the indexing and retrieval of high-dimensional image data. Although there have been many efforts, the performance of existing multidimensional indexing methods is not satisfactory in high dimensions. Thus the dimensionality reduction and the approximate solution methods were tried to deal with the so-called dimensionality curse. But these methods are inevitably accompanied by the loss of precision of query results. Therefore, recently, the vector approximation-based methods such as the VA- file and the LPC-file were developed to preserve the precision of query results. However, the performance of the vector approximation-based methods depend largely on the size of the approximation file and they lose the advantages of the multidimensional indexing methods that prune much search space. In this paper, we propose a new index structure called the GC-tree for efficient similarity search in image databases. The GC-tree is based on a special subspace partitioning strategy which is optimized for clustered high-dimensional images. It adaptively partitions the data space based on a density function and dynamically constructs an index structure. The resultant index structure adapts well to the strongly clustered distribution of high-dimensional images.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.24-26
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• 2012

항만은 해륙교통의 요충지로서 그리고 국토의 균형적인 발전과 지역진흥의 기반으로서 중요한 역할을 담당하고 있지만 노후항만시설 및 쇠퇴공간에 대한 유지 및 보수가 효과적으로 이루어지지 않아 기능의 상실은 물론 재해와 우범화의 대상이 될 수 있다. 특히, 항만의 활성화를 위해 중요한 부분인 항만고유의 기능인 생산 및 물류의 지원과 아울러 소득수준 향상에 따른 풍부한 생활공간으로의 환경 친화적인 정비와 항만재개발이 필요하며, 미래지향적 종합항만공간으로의 기능전환이 이루어지고 있다. 국내 최초로 대규모 항만재개발이 추진되고 있는 부산북항재개발 사업에서도 항만도시의 경쟁력을 위해 국가차원에서의 경관계획을 반영하고 있으며, 해양도시 이미지 개선 및 가치향상을 위한 노력의 일환으로 고유의 자연, 역사, 문화적 자원과 함께 각종시설, 건축물, 상징물, 생태 녹지의 상황과 특성에 맞는 경관조성에 노력을 하고 있다. 본 연구에서는 부산북항재개발 사업에 대한 경관색채계획 사례분석을 통해 경관조성방안에 대해 향후발전방향에 대한 기초자료로 활용 할 수 있으리라 판단된다.

• Journal of the Korean association of regional geographers
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• v.19 no.2
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• pp.362-374
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• 2013

ICTs(Information and Communication Technologies) have changed the ways of social activities and communications, and in the process, online and offline spaces have been thought of as binary spaces in which online spaces substitute and erode offline spaces. The aim of this study is to explore how urban space where local social activities and communications are performed is constructed in terms of timespace through the intersection of online and offline communications and how the urban space is 'remediated' through online spaces. For this, the study looks at the case of a workshop on 'locality education' held at the Yeungnam University Museum in January 2013. Criticizing the dichotomist viewpoint that increasing in communications through online spaces results in the expansion of 'absent presence' or 'placelessness' in offline spaces, the study argues that online spaces remediating offline spaces are spaces not transcending the timespace constraints of the offline spaces but rather reflecting the spatial, temporal, material, social, cultural environments of urban space and place.

• Journal of Korean Society for Geospatial Information Science
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• v.23 no.3
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• pp.95-106
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• 2015

Unused land is a new load of building and a linear improvement, expanding the loss of function of the road abandoned road construction sites, as well as existing roads is possible additional advantage. However, some space is overcharge checkpoints, materials yard, make this vehicle utilization and maintenance of the unfavorable situation, as vehicle rest area but unused land most of the space required for the use of the system management plan. We are analyzed the location, topographical features, cultural property and in the space which is geospatail open platform set up to classify the type of unused land. Depending on the type of unused land using the geospatial open platform performs a 3D model and a proposed model development and application taking into account the environment and landscape. To derive the Gangwon development Plan and design of future route unused land was becoming helps you make better use of unused land.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.18 no.1
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• pp.79-85
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• 2009

전치부사이의 비정상적 공간이 생기는 원인은 순측소대, 악궁과 치아의 크기 부조화, 악습관, 과잉치, 치주염으로 인한 병적치아이동 등 다양하다. 이러한 일차적인 원인요소들을 먼저 제거한 후 남게 되는 공간을 해결하기 위해서 교정치료 또는 여러가지 보철수복방법을 고려해 볼 수 있다. 보철적으로 치료할 경우, laminate를 이용하여 심미적인 전치부를 만드는 술식은 보존적인 면에서나 심미적인 면에서 유리한 점이 있어 많이 사용되고 있다. 그러나 인접면사이에 비교적 큰 공간이 존재하며, 감소된 치주조직으로 인하여 치간유두의 소실이 많고 직경이 작은 치경부가 노출되었을 경우에는 laminate를 이용하여 공간을 수복하기가 쉽지 않기 때문에, 교정적으로 치아를 이동시킴으로서 보다 심미적인 결과를 얻을 수 있다. 본 증례는 중등도의 치주질환으로 인하여 치주조직이 감소된 상악중절치에서 정중이개의 양이 비교적 크고 치간유두의 소실 및 직경이 작은 치경부가 노출된 환자에서 laminate를 이용하여 심미적인 공간폐쇄를 도모하였다.