• Journal of the Korean Institute of Rural Architecture
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• v.15 no.4
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• pp.35-42
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• 2013

The study aims to investigate general characteristics of Jae-sil from an architectural perspective by grasping location, deployment, structure, and plan composition based on existing inhabited conditions in Jeollabukdo. Results derived from the study are as follows. First, the location of Jae-sil is classified into mountainous and village types, and the two types showed a similar distribution. The village type showed the most distribution in the foot of a mountain in the rear of village, while the mountainous type is close to graveyard. The Jae-sil were mostly exposed to south, southeast, and southeast, which was not significantly different from residence. For deployment of the Jae-sil, a "二" shaped house, where main quarter and gated building are parallel located, can be common, indicating that additional attached building is less required. Second, for the platform out of structural components, coursed masonry was conducted by using natural rocks, and placed were a prop on the platform, first line on processed foot stone, and others on natural foot stone. For pillar, front line round columns, while others square columns. The binding type of the upper part of pillar is dominated by jangyeosujang and sorosujang. For wooden frame structure, 5ryangs were the most distributed, and out of these, 1goju 5ryang was the most generally used. For a roof part, it was composed with gambrel roof with single eave, and the roof was constructed by placing traditional Korean tile roof on the top. Third, for a size of Jae-sil out of plan composition, although the facade and the side of it were presented in a diverse manner, 4 facade rooms and 1.5 side rooms were the most frequently presented, and all Jae-sil were equipped with front ceremonial space. For spatial composition of Jae-sil, main floored hall is placed at the center, and each room is placed on the left and right side to secure space for ancestral rite for participants of it, and for a house with 5 rooms or more, it shows that main floored hall and rooms are weighted from side to side.

• Proceedings of the KIEE Conference
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• 2001.05a
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• pp.217-219
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• 2001

This paper presents new diagnosis technique for detecting a partial discharge(PD) using antenna. The wavelet transform is applied for the analysis of PD pulse signal because it is difficult to identify PD signal using electromagnetic waves detected by antenna. The capabilities of the proposed diagnosis methodology for detecting PD signal is verified on experiment in laboratory.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.2010-2011
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• 2007

Rogowski Coil Current Transformer using PCB(Printed Circuit Board) is produced to analyze characteristics of digital C.T(Current Transformer). Conclusively, this paper expresses a difference and a good point of C.T using PCB.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.21-22
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• 2008

The increase of fault current due to larger power demand has caused the capacity of power machines in grid to increase. To protect the power system effectively from the increased fault current, the superconducting fault current limiter (SFCL) have proposed one of several countermeasures. Therefore, to introduce SFCL into power distribution system, the position of SFCL in power distribution system is selected among some cases. Each position changes fault current limiting characteristics and SFCL's requirement. In this paper, the characteristics of limiting fault current according to installed SFCL's location in power distribution system.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.63-64
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• 2008

The increase of fault current due to large demand has caused the capacity of power machines in power grid to increase. To protect the power system effectively from the large fault current, several superconducting fault current limiters have been proposed. however, in order to apply superconducting fault current limiters into power system, there are many problems such as cost, recovery, AC loss, and cryogenic. In order to solve these problems, hybrid superconducting fault current limiter(HSFCL) was proposed. However, HSFCL also has a problem that is protective coordination in distribution system with HFSCL. In this paper, HSFCL limiting after half cycle modeled and analyzed about protective coordination.

• Proceedings of the KIEE Conference
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• 2001.07a
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• pp.404-406
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• 2001

This paper is detecting a partial discharge(PD) using antenna. The wavelet transform is applied for the analysis of PD pulse signal. It is difficult to identify PD signal using electromagnetic waves detected by antenna. And so we can removed noise of PD signal using wavelet de-noising method.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.40 no.5
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• pp.446-453
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• 2012

As part of the integration phases in developing a UAV, a System Integration Laboratory (SIL) has been developed to provide integrated test capability for the verification of avionics system requirements. The SIL has realized primary functions that are common in manned aircraft SIL's, and specialized laying stress on test data visualization and test automation under the closed-loop structure of the ground control simulation, aircraft simulation and flight simulation components. Those design results have led to easy and sure verification of lots of complex requirements of the UAV avionics system. The functions and performances of the SIL have been proved in four gradational test steps and checked to operate successfully in aircraft System Integration Test Environment for the integration of UAV ground station and aircraft.

• Proceedings of the Korean Fiber Society Conference
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• 1995.04a
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• pp.80-80
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• 1995

• Annual Conference of KIPS
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• 2009.11a
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• pp.613-614
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• 2009

최근 네트워크의 가용성을 침해하는 DDoS공격으로 국내외 주요 사이트가 마비되는 사건이 있었다. 본 논문에서는 TCP와 UDP의 자기유사성을 이용하여 유효 대역폭을 측정하고 네트워크의 가용성을 보장하기 위한 한계 대응 시점을 예측하였다. 그리고 실험을 통해 한계 대응 시점의 예측이 정확함을 확인 할 수 있었다.

• Annual Conference of KIPS
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• 2017.04a
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• pp.731-732
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• 2017

빨래 예측 건조 실패 혹은 건망증으로 인해 빨래를 다시 감수해야 하는 피해자들이 속출하고 있다. 또한, 이러한 문제점으로 인한 피해 뿐 아니라 옥시 사건 이후 특정 화학 물질에 대한 사람들의 기피성은 높아져가고 있는 반면에 그 화학물질을 측정할 방법은 없는 것이 현실이다. 이러한 문제점들을 해결하기 위해 본 논문에서는 IoT 시스템을 이용한 모듈을 설치하여, 제시한 문제점에 대한 대안을 제시한다.