• 한국정보통신학회논문지
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• 제12권4호
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• pp.752-757
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• 2008

본 논문은 자동차의 정차 또는 주행 중 다양한 조건으로 제동 거리와 제동 안정성 시험을 할 수 있는 제동시험용 계측 S/W를 개발하였다. 본 논문에서 구현한 자동차 제동시험 용 계측 S/W는 제동시험에 대한 객관성을 확보하고, 제동시험에 대한 반복 재현성을 확보하여 현재 세계 각 국에서 실시하고 있는 다양한 제동 거리와 제동 안정성 시험에 적용할 수 있다. 자동차 제동시험용 계측기를 자동차에 장착하여, 정차 상태와 주행 중에 신차평가제도(NCAP)의 시험 조건과 자동차 제작사인 A, B사의 자체 시험조건에 맞추어 제동 거리와 제동 안정성 시험을 하였고, 모든 시험 조건에 맞는 시험을 할 수 있었으며, 보다 가혹한 시험 조건에도 적용해 봄으로써 차후 시험 조건이 변경 될 경우에도 본 논문에서 제작한 계측 S/W의 적용 가능성을 확인하였다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 추계학술발표회
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• pp.422-423
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• 2005

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2012년도 춘계학술대회 논문집
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• pp.811-812
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• 2012

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2002년도 봄 학술발표회 논문집
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• pp.373-380
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• 2002

In this study, In order to compare the behavior of axail load transfer for S.L. coated piles and uncoated piles installed at a field test site. During static pile load tests, axial load transfer for S.L. coated piles and uncoated piles were measured.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2000년도 가을 학술발표회논문집(I)
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• pp.409-412
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• 2000

Many researchers have been trying to evaluate the diffusion coefficient of chloride ion in concrete by using qualitative and quantitative electro-migration tests. Up to now, however, there has been no sufficient method to closely determine the diffusion coefficient of chloride ion through electro-migration test. In this paper, the diffusion coefficient of chloride ion in concrete was investigated through an electro-migration test, that is, AASHTO T 277, Dhir's method, Tang's method and Andrade's method. And the results of these test were compared with each other.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 춘계 학술발표회 논문집
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• pp.61-68
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• 2006

Cemented Sand and Gravel(CSG) is a material made by simple mixing of rock-based raw materials such as excavated soil and riverbed gravel together with cement and water. The use of CSG methodl for cofferdam and large dam is gradually increasing in Japan because a quarry and aggregate plants can be diminished. Also, the CSG method can reduce dam construction cost, construction duration and destruction of environment. In this paper, field test and test construction of CSG method was conducted on Hwabuk Dam. The mechanical properties of CSG, such as compressive strength, extention strength and field permeability test were investigated. From the results of the experimental study, application study of CSG method was discussed.

• 한국생산제조학회지
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• 제21권5호
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• pp.830-835
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• 2012

A research for application of LDSMC(Low Density Sheet Molding Compound) composite is in progress for lightening the weight. This paper has performed fatigue test and simulation of external panel for Korean commercial vehicle. Before the fatigue test, static test was carried out. From the test, the structural safety was investigated using Goodman diagram. After the static test performance, the fatigue test was conducted at a range of load frequency 5Hz, a stress ratio(R) of 0.05 and an endurance limit of $10^6$ to obtain the S-N curve. The S-N curve is applied to the fatigue analysis of the external panel assembly. The result of FEM analysis was in accord with the experimental result within 83% confidence. It showed that the process to set up the safety range of allowable error is required in process of the design and simulation verification.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.172-178
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• 2007

The purpose of Railroad Vehicles License Management in accordance with the Railroad Safety Law is to improve the quality of railroad safety. And the train simulators come into use for training of train operation and testing to issue Railroad Vehicles License. So, It is very important that the simulators for the Railroad Vehicles License Test require to work correctly, to measure driver's operation quality in numerical system and to ensure the justice of license test. In fact, nobody can guarantee that the simulators are feasible performance to use in license test. The simulator for train driver license test can be used effectively for studying of needed performance and quality to test new driver's skill. This study hopefully provides the base for improving the quality of the simulator for train driver's license test and contributes furthermore to improve the simulator development technology and railroad safety.

• 동서간호학연구지
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• 제15권2호
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• pp.110-118
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• 2009

Purpose: This study identifies the effects of meridian massage on relieving facial paralysis, pain, and anxiety in Bell's palsy patients. Methods: A nonequivalent control group pre-test/post-test design was used for the study. The subjects were 51 Bell's palsy patients (experimental group=26, control group=25) of D University's oriental medicine hospital. The experimental group received a meridian massage for 20 min three times a week for two weeks. The data were analyzed with the following methods by using the SPSS/WIN 12.0 program: $x^2$-test, Fisher's exact test, and t-test. Results: The facial paralysis scores of the experimental group were significantly higher than those of the control group. The pain and anxiety scores of the experimental group were significantly lower than those of the control group. Conclusions: The results suggest that meridian massage (applied by nurses) has beneficial effects on facial paralysis, pain, and anxiety in patients suffering from Bell's palsy. Thus, meridian massage is recommended as an alternative nursing intervention program for patients with Bell's palsy.

• 한국통신학회논문지
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• 제19권3호
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• pp.401-417
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• 1994

본 논문에서는 논리 모니터링 방식에 의해 stuck-at(s-at)고장, stuck-open(s-op)고장 및 stuck on(s-on) 고장을 검출하기 위한 Domino CMOS회로의 테스트용이화 셀계기법을 제안한다. Domino CMOS게이트내 nMOS트랜지스터들의 s-op고장과 s-on고장을 검출하기 위하여 한개의 pMOS 트랜지스터를 부가하고 단일 게이트 및 다단 Domino CMOS회로내 인버어터의 pMOS트랜지스터 s-on 고장을 검출하기 위해서 한개의 nMOS트랜지스터를 부가한가. 부가된 트랜지스터는 Domino CMOS를 테스트 모드에서 pseudo nMOS회로로 동작하도록 만든다. 따라서 일반 domino CMOS회로의 테스트 시 회로지연에 의한 오동작을 방지하는 선충전(precharge phase)과 논리결정(evaluation phase)의 이상(two-phase)동작을 필요로 하지 않아 테스트 시간과 테스트 생성의 복잡도를 줄일 수 있게 된다. 제안된 회로에서는 대부분의 고장들이 단일 테스트 패턴에 의해 검출되는데 이에따라 경로지연이나 타임스큐, 전하재분배 및 그리치 등에 의해 테스트가 무효화되는 것을 피할 수 있으며 테스트 패턴 생성을 위하여 기존의 자동 테스트패턴생성기(ATPG)를 이용할 수 있는 장점을 갖는다.