• Korean Journal of Construction Engineering and Management
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• v.14 no.3
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• pp.88-96
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• 2013

Recent proliferation of building information modeling (BIM) has actively stimulated integrated utilization of geometric (graphic) and non-geometric (non-graphic) data. Nevertheless, physically and logically, linking and maintaining these two different types of data in an integrated manner requires enormous overhead efforts for practical implementation. In order to address this problem, this paper proposes a concept and structure of the object breakdown structure (OBS) that facilitates advanced BIM implementations in an automated and effective manner. Proposed OBS numbering system has secure rules for organizing graphic objects in full considerations of effectively integrating with non-geometric data (e.g. cost and schedule). It also removes repetitive linking process caused by design changes or modifications. The result of applying this concept to a housing project revealed that only 120 definitions controled over 6,000 graphic objects for full integration with cost and schedule functions.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.39C no.11
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• pp.1104-1113
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• 2014

Future combat systems can be represented as the NCW (Network Centric Warefare), which is based on the concept of Sensor-to-Shooter. A wireless video sensor networking technology, one of the core components of NCW, has been actively applied for the purpose of tactical surveillance. In such a surveillance sensor network, multi-composite sensors, especially consisting of image sensors are utilized to improve reliability for intrusion detection and enemy tracing. However, these sensors may cause a problem of requiring very high network capacity and energy consumption. In order to alleviate this problem, this paper proposes an image data transmission scheme based on resource reservation. The proposed scheme can make it possible to have more reliable image data transmission by choosing proper multiple interfaces, while trying to control resolution and compression quality of image data based on network resource availability. By the performance analysis using NS-3 simulation, we have confirmed the transmission reliability as well as energy efficiency of the proposed scheme.

• Journal of Genetic Medicine
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• v.7 no.1
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• pp.16-23
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• 2010

Many endocrine disorders have a genetic component. The genetic component is the major etiologic factor in monogenic disorders, while multiple genes in conjunction with environmental and lifestyle factors contribute to the pathogenesis in complex disorders. The development of the molecular basis of inherited endocrine diseases has undergone a dramatic evolution during the last two decades. The application of molecular technology allowed us to increase our understanding of endocrine diseases, and to impact on the practice of pediatric endocrinology related to diagnosis and genetic counseling. Identification of the mutation in the particular disease by genetic testing leads to precise diagnosis in the equivocal cases and prenatal diagnosis. However, clinicians should be cautious about determining therapeutic decisions solely on the basis of molecular studies, especially in the area of prenatal diagnosis and termination of pregnancy. This review describes an introduction to molecular basis of various inherited endocrine diseases and diagnosis by genetic testing.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.6B
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• pp.720-727
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• 2011

Modern people has been increased interest about health care and maintenance as emerging well-being and social issues. In particular, the smoking is not good for the recognition much greater importance is the massive spread of the smoking is low. The smoking has much adverse effects body's respiratory and circulatory organ many and it is recognized as a serious danger to our health the smoking as well as secondhand smoking. In this paper, we were carried out study analysis comparison to apply though voice analytical elements techniques have a influence vocal cords and formants in the environment smoking and secondhand smoking. For this purpose, we organized subjects group smoker and nonsmoker in 20's man and to collect voice of the smoke and Secondhand Smoking before after then we carried out study analysis experimental results Pitch, Jitter, Shimmer, 5~8 Formant Frequency.

• Journal of the Korea institute for structural maintenance and inspection
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• v.5 no.4
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• pp.227-233
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• 2001

최근 비약적인 경제발전에 힘입어 장대교량, 항만, 댐, 도로, 원자력 발전소 등과 같은 대규모 기간구조물의 건설이 증가하고 있으며, 구조물은 대형화 혹은 고강도화되는 추세에 있다. 특히, 전술한 구조물을 매스콘크리트로 가설하게 되면 초기재령시에 수화열로 인한 균열이 발생할 가능성이 매우 높기 때문에 효율적인 매스콘크리트의 개발과 매스콘크리트 구조물의 설계기술 및 시공방법이 중요한 연구대상으로 등장하게 된다. 본 논문에서는 가로 52.6m, 세로 14.4m, 높이 8.5m의 기계기초 매스콘크리트의 시공에 적합한 온도관리기법을 다음과 같은 단계로 제안하고자 한다. 먼저 온도상승요인을 최소화하는 콘크리트의 배합비를 산정한다. 산정된 콘크리트의 열특성을 측정하기 위해 단열온도실험을 수행하여 각종 열특성상수와 단열온도 상승곡선식을 도출한다. 이와 같은 열특성치를 콘크리트 구조체에 적용하여 열응력해석을 수행한다. 이와 같은 열응력해석을 통하여 구조물의 분할타설높이에 따라 온도균열이 발생하지 않는 콘크리트 내외부의 온도차를 결정한다. 이때 열응력해석에 범용 유한요소 프로그램인 Diana을 사용한다. 콘크리트의 타설은 현장조건과 타설시점을 최대로 고려하고 양생방법으로 콘크리트 내외부의 온도차를 최소화하기 위해 이중단열효과가 있는 거푸집과 가열장비을 사용한다. 또한 콘크리트의 온도관리를 위하여 구조물 내외부에 온도게이지를 매립하고 30분마다 계측을 수행하면서 콘크리트 내외부 온도차가 허용 해석범위를 유지하도록 한다. 양생기간은 7-10일 정도를 유지한다. 전술한 온도관리기법을 통하여 완공후 수평정밀도가 기초의 허용침하량으로 환산하여 $1{\mu}m$ 인 고정밀도의 기계기초는 완벽하게 시공되었다. 따라서 매스콘크리트의 온도균열을 제어할 수 있는 시공방법으로 제안한다. 또한 매스콘크리트의 내외부 온도차를 단열온도실험과 온도해석으로부터 정한 값이내로 제어하고 충분한 양생관리를 병행하면 수화열에 의한 콘크리트의 온도균열을 최소화할 수 있을 것으로 기대한다.

• The Journal of the Korea Contents Association
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• v.17 no.9
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• pp.619-636
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• 2017

This research presents the relationship building between the supervisor and supervisee through the supervision process in a narrative inquiry. The supervisory relationships of the supervisor A and supervisee B, and the effects they have on the relationship between the two are described in as factual terms as possible. The results imply that genuineness and openness are the core components of relationship. Especially, in the case of a highly hierarchical relationship, where it is often easy for the supervisor to employ hidden tactics, efforts on the part of the supervisor's endeavor to develop unconditional acceptance can be helpful in establishing a more open-minded attitude. As a result, the common view in the literature that attributes relationship hierarchy to cultural factors may need to be reexamined. This research provides evidence that in the case of supervision and training in counseling, establishing an environment of acceptance, trust and rapport can help advance the supervisory relationship to a less hierarchical form.

• Journal of the Korean Society of Hazard Mitigation
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• v.8 no.2
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• pp.59-63
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• 2008

The surface runoff is one of the important components for the surface water balance. However, most Land Surface Models(LSMs), coupled to climate models at a large scale for the prediction and prevention of disasters caused by climate changes, simplistically estimate surface runoff from the soil water budget. Ignoring the role of surface flow depth on the infiltration rate causes errors in both surface and subsurface flow calculations. Therefore, for the comprehensive terrestrial water and energy cycle predictions in LSMs, a conjunctive surface-subsurface flow model at a large scale is developed by coupling a 1-D diffusion wave model for surface flow with the 3-D Volume Averaged Soil-moisture Transport(VAST) model for subsurface flow. This paper describes the new conjunctive surface-subsurface flow formulation developed for improvement of the prediction of surface runoff and spatial distribution of soil water by topography, along with basic schemes related to the terrestrial hydrologic system in Common Land Model(CLM), one of the state-of-the-art LSMs.

• Journal of the Society of Disaster Information
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• v.13 no.4
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• pp.483-490
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• 2017

Recently, the demand for industrial and residental land are increasing with economic growth, but it is difficult to obtain the area for development with good ground condition. Various kinds of vertical drain technologies such as sand drain, sand compaction pile, packed drain, PVD are commercially available to improve the soft ground. Discharge capacity is the important factor of vertical drains. However, under field conditions, discharge capacity is changed with various reasons, such as soil condition, overburden pressure, and so on. In this paper, the experimental study was carried out to estimate the discharge capacity of four different types of PBD, PBD for double core PBD, deep type PBD, X type PBD, general type PBD. Characteristics of the discharge capacity for the surcharge load and hydraulic gradient were analysed. The double core PBD was excellent for discharge capacity in this study.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.22 no.9
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• pp.62-68
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• 2008

This paper describes the electrical characteristics of ZnO surge arresters associated with the variation of surrounding conditions. To investigate the deterioration behaviors of ZnO surge arresters due to lightning surges, 8/20[${\mu}s$], 2.5[kA] impulse currents were injected to the ZnO surge arrester under test. The leakage currents of ZnO surge arrester subject to power frequency AC voltage were measured in different surrounding temperature and wet conditions. As a result, it was found that the leakage current is increased and its asymmetry is pronounced as the number of injection of the impulse current and the ambient temperature increase. Also, in the wet test the outside leakage current flowing through the housing surface of the ZnO surge arrester is much larger than the intrinsic leakage current of ZnO surge arrester element. The results obtained in this work can be a lied as factors of improving the reliability and performance of monitoring system for surge arresters.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06b
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• pp.231-235
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• 2010

요즘 들어 컴퓨터 처리 능력의 향상에 따라 사이버인프라스트럭처(Cyberinfrastructure)를 이용하는 계산과학이 주목을 받고 있다. 그 중에서도 대용량 데이터의 복잡한 계산과 시뮬레이션을 동반하는 계산화학 연구 분야에서의 컴퓨터 활용은 매우 중요하다. 계산화학을 간단하게 설명하자면 컴퓨터를 이용한 계산을 통하여 이론 화학의 문제를 다루는 화학의 한 분야라고 말할 수 있다. 계산화학 분야의 연구를 위하여 고성능 컴퓨터와 데이터를 처리, 분석하는 계산화학 도구는 이론연구자 및 실험연구자 모두에게 있어 필수적인 요소이다. 더불어 계산화학 연구자간의 협업과 원격지에 있는 사이버인프라스트럭처 자원의 활용을 위해 e-Science 환경에서의 연구 및 교육 환경이 개발되어야 한다. 이에, 본 논문에서는 한국과학기술정보연구원(KISTI)이 보유 및 운영하고 있는 사이버인프라스트럭처(고성능 컴퓨터, 초고속 네트워크)를 기반으로 컴퓨터에 익숙하지 않은 계산화학 관련 연구자 및 전공자들이 인터넷 상에서 계산화학 분야 교육을 받을 수 있는 e-Science 기반 계산화학 교육을 위한 환경을 설계하고자 한다. 이를 위해 1) 세계적으로 유명한 GridChem, CICC, NBCR 웹사이트를 이용하여 발표된 논문을 분석하였으며, 2) 분석된 결과를 가지고 주로 사용되는 계산화학 도구의 통계를 산출하여, 3) 이를 바탕으로 KISTI 사이버인프라스트럭처를 활용한 e-Science 기반 계산화학 교육 환경(e-Chem)을 설계하였다.