• 한국통신학회논문지
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• 제23권9A호
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• pp.2165-2172
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• 1998

Existing premises telecommucation wiring ad been installed for efficient telephone service. But premises wiring is currently ready to be reused as media for wideband digital services and Fiber-to-the-curb architecture. Electrical properties of premises wiring link have not characateized above frequencies for voice service. Accurte measurement of these characteristics are exssential for studies fof wideband ditital transmission system. On the other hand, the transmission qualities of premises wiring have been known to be worst in telecommunications access networks. So the knowledge of premises wiring sturucture as well as electrical properties is needed to improve the performance of premises wiring. In this paper, the structure of premises wiring is described in detail and electrical characteristics (characteristic impedance, SRL, attnuation, NEXT) about premises cables and stelecommucations link of representative apartment complex sare measured and naalyzed ove r16MHz range which is UTP Cat3 bandwidth.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.296-296
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• 2000

This paper describes the features of a transmission line and a wiring, and a design rule based on a demanded condition for a wiring. Like as the simulation of a circuit, by tracking the wiring path among parts that are disposed on PCB, we analyze the feature of the corresponding wiring using the design formula and rule. We implement a signal integrity simulator, which is capable of electrical and electronic simulation for the feature of a wiring signal and the corresponding signal, and the results are demonstrated.

• 한국유기농업학회지
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• 제27권1호
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• pp.33-44
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• 2019

본 연구는 배 주요재배 품종인 신고를 이용하여 생장조절제인 지베렐린과 환상박피 효과를 대체 할 수 있는 재배기술을 개발하고자 수행하였다. ${\Phi}3.0mm$인 철사를 사용하여 시기별로 만개 후 70, 80, 90, 110, 130일에 주간에 wiring 처리 후 과실품질 및 수확 후 저장성에 미치는 영향에 대하여 조사하였다. 과실의 과중과 당함량을 조사한 결과 처리시기가 늦은 만개 후 110일 처리구가 다른 처리구와 비교해서 높은 증진 효과를 나타냈으며 처리시기가 빠를수록 낮은 결과를 나타냈다. 산함량은 wiring 처리구가 무처리구보다 낮은 함량을 보였고, 경도는 처리구간 유의적인 차이는 나타나지 않았다. 과피 착색은 무처리구에서 가장 낮은 L값을 보였으나 처리 간 유의적인 차이는 보이지 않았다. 만개 후 110일과 130일 처리구에서 a값이 가장 높게 나타났는데 이는 wiring 처리가 과실의 숙기에 영향을 미치는 것으로 판단된다. 수확 후 저장 60일, 90일 후 과중 변화는 만개 후 110일 처리구에서 가장 낮은 감모율을 보였으며, 당함량과 산함량, 경도는 처리구간 유의적인 차이가 없었다. 저장 기간 중 과실의 밝기를 나타내는 L값은 모든 처리구에서 유의적인 차이가 나타나지 않았으나 a값을 조사한 결과 90, 110일 처리구가 다른 처리구보다 높게 조사되어 처리시기에 따라 a값이 다르게 나타났다. 꽃눈의 생체중과 크기는 처리구간 유의적인 차이는 나타나지 않았다. 꽃눈의 무기성분 함량은 만개 후 80일 처리구에서 K (0.63%)과 Mg (0.31%) 함량이 가장 높았고, Ca과 P의 함량은 처리간 유의적인 차이는 없었다. 잎 내 K 함량은 만개 130일 처리구(0.76%)와 무처리구에서 (0.78%) 함량이 낮았고, Ca과 P의 함량은 처리간 유의적인 차이는 없었다. wiring 처리시기가 늦어짐에 따라 꽃눈의 탄수화물 함량은 곡선형의 상관관계를 보였고 잎의 탄수화물과는 부의 상관관계가 관찰되었다.

• 한국안전학회지
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• 제27권4호
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• pp.38-42
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• 2012

This paper describes electrical fire on residential environment such as apartment and detached house caused by defect of interior wiring. We carried out experimental study on short circuit characteristics by the interior wiring length. We were measured arc current, arc energy and interrupting time of earth leakage current circuit breaker(ELB), when an interior wiring break out short circuit in residential environment. From the experiment results, the longer of the interior wiring, the magnitude of arc current decreased and the interrupting time of ELB increased. When applied the A maker's ELB, the strength of arc current and interrupting time of ELB was 254 A and 245 ms respectively at 30 m interior wiring length. In 3 m interior wiring length, arc current and interrupting time was 716 A and 4.24 ms respectively. Arc energy was dependent on the magnitude of arc current and the interrupting time of ELB, the longer the interrupting time, arc energy increasing. In this paper, minimum arc energy was 277 J using C maker's ELB and 3 m interior wiring length(arc current 283 A, interrupting time of breaker 6.28 ms). Therefore in the residential environment, short circuit caused by defect of the interior wiring lead to electrical fire.

• Journal of Power Electronics
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• 제17권2호
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• pp.561-569
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• 2017

Power converter design requires simulation accuracy. In addition to the requirement of accurate models of power semiconductor devices, this paper highlights the role of considering a very good description of the converter circuit layout for an accurate simulation of its electrical behavior. This paper considers a simple experimental circuit including one switching cell where a MOSFET transistor controls the diode under test. The turn-off transients of the diode are captured, over which the circuit wiring has a major influence. This paper investigates the necessity for accurate modeling of the experimental test circuit wiring and the MOSFET transistor. It shows that a simple wiring inductance as the circuit wiring representation is insufficient. An adequate model and identification of the model parameters are then discussed. Results are validated through experimental and simulation results.

• 한국기계가공학회지
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• 제9권2호
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• pp.66-72
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• 2010

Recently a large number of electronic control devices are abruptly increasing in vehicles as the electronic industry advances. Also the number of wiring harnesses and complexity of wiring is proportionally increased to the devices. A newly developed connector named bridge connector is introduced in this study for the purpose of the wiring structure changes. A wiring structure among distributed control systems by using serial communication is proposed with the bridge connector in this paper. The bridge connector contains a auto-recovery fuse made by PTC thermistor material for the protection of the over-currents on local control devices. The auto-recovery function of the fuse is needed for the maintenance free system in the distributed controls. The PTC fuse characteristics organized in this study is tested and the results are showed in detail for the real application.

• Journal of Welding and Joining
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• 제29권5호
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• pp.90-94
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• 2011

Ag metallic particles from nano-scale to submicron-scale are combined with organic solvent to provide fine circuits and interconnection. Ink-jet printing with Ag nano particle inks demonstrated the potentials of the new printed electronics technology. The bonding at the interface between the Ag wiring layer and the various substrates is very important. In this study, the details of interfaces in Ag wiring are investigated primarily by microstructure observation. By adjusting the materials and sintering conditions, nicely formed interfaces between Ag wiring and Cu, Au or organic substrates are achieved. In contrast, transmission electron microscope (TEM) image clearly shows interface debonding between Ag wiring and Sn substrate. Sn oxides are formed on the surface of the Sn plating. The formation of these is a root cause of the interface debonding.

• Journal of Yeungnam Medical Science
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• 제2권1호
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• pp.59-63
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• 1985

저자들은 tension band wiring을 이용하여 주두골골절을 치료하여 그 결과를 분석하여 tension band wiring이 주두골골절의 치료에 매우 효과적이란 결론을 얻었기에 보고하는 바이다.

• 한국태양에너지학회 논문집
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• 제38권4호
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• pp.33-42
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• 2018

In the application of the BIPV system, it is expected that the workability is lowered due to the difficulty in securing the space for wiring in the frame and the performance of the frame due to the wiring hole processing is lowered. Therefore, In this study, we propose a method to improve the wiring of the inner space of the BIPV frame, and through the simulation evaluation process, the thermal and condensation performance are secured by complementing the problems caused by the hole machining, and the time and effort required for BIPV construction are reduced. For this purpose, a wiring treatment method using a flange insertion tube was proposed, and the thermal and condensation performance was evaluated through simulation analysis.

• 한국항행학회논문지
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• 제24권3호
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• pp.205-211
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• 2020

배선 결함은 안전한 항공기 운항에 커다란 영향을 미친다. 그러나 배선 결함의 고장탐구 과정은 광범위하고 복잡한 배선 시스템과 설치 위치 때문에 매우 어렵다. 최근 국내 항공사에 배선 결함 고장탐구를 효과적으로 할 수 있게 해주는 시간영역 반사계(TDR; time domain refelectometer) 장비가 소개되었다. 하지만 TDR의 효과와 유용성이 검증되지 않아 대부분의 항공사 정비 부서에서 TDR은 실질적으로 거의 사용되고 있지 않다. 본 연구는 TDR이 항공기 배선에서 결함의 위치 및 유형을 식별하여 문제 해결에 적용될 수 있는지 여부를 결정하기 위해 수행되었다. 실제 항공기에 적용되는 다양한 전선 및 연결부품을 이용한 여러 실험 계획을 수립하여 관찰된 실험 결과를 장비 운용 가이드에서 제공된 데이터와 비교하였다. 실험 결과, 양쪽의 데이터가 유사함을 볼 수 있었으며 TDR은 실제 항공기 배선 결함 고장탐구시 활용 적합성이 있음을 확인하였다.