• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 추계학술발표회 논문집
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• pp.111-116
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• 2004

This study is given that on the bridge construction in marine by GPS, specially, choice of station for footing construction of marine bridge. You can get positive datum in the checking of marine excavation, if you use together Total Station and GPS. In the result of comparision of upper surveying methods, Surveying datum is gotten error of less than 30mm(The depth of water 10～l5mm, station 7～10mm). This study show that hereafter if you use GPS in bridge construction in marine you can get accurateiy datum.

• 대한전자공학회논문지
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• 제25권2호
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• pp.176-181
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• 1988

In this paper, the LPC speech synthesizer with Multipulsse excitation is implemented using general-purpose DSP \ulcornerD7720. As the driving function for synthesis filter is used in the amplitude and position of pulse, the Voice/Unvoice decision and pitch period detectioncan be excluded. The synthesizer is implemented with DSP device which is operated on the interrupt mehtod with main computer and on the DMA mehtod with D/A converter. The comparision of synthetic and original waveform, alogn with the listening test, proves the validity of this system.

• 한국광학회지
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• 제2권1호
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• pp.50-56
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• 1991

This paper describes several optical microphones, "optophone", where a low-power He-Ne laser beam is deflected by a reflecting diaphragm mounted on a photoacoustic cell. A comparision of an acousto-optic detection to a conventional microphone shows comparable sensitivities for the photoacoustic detection. The greatest application of these detections may be found where small volume spectro-phone cells are employed, or where conventional microphones cannot be employed because of high or low temperature or chemical corrosion problems. problems.

• International Journal of Ocean Engineering and Technology Speciallssue:Selected Papers
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• 제5권1호
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• pp.58-63
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• 2002

This paper presents a mechanical design of the deepwater pipeline wall thickness using the recent design rules. Characteristics and limitations of the new codes were identified through a case study design in the Gulf of Mexico. In addition to the ASME, API, and DVD codes, the code of federal regulations (CFR) was also utilized in the design. It was found that conservatism still exists within the collapse prediction for water depth greater than 1500 m. Comparision of the results from DNV and API codes were presented.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2002년도 추계종합학술대회
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• pp.418-422
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• 2002

As Unix based server including Linux are increased steadily, MS group users who want to connect these servers are increased. There were lots of connection using telnet for a while, but there are increased connection using "TTSSH or PUTTY" which get used free since "secure shell"(SSH) appeared recently. This paper compare TTSSH & PuTTY′s characters and using method, and propose remote-access tool which improve TTSSH.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2002년도 춘계종합학술대회
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• pp.171-174
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• 2002

음성 신호는 언어정보, 개인성, 감정 등의 여러 가지 정보를 포함한 음향학적인 신호인 동시에 가장 자연스럽고 널리 쓰이는 의사소통 수단의 하나이다. 본 연구에서는 저장된 음성 신호에서 추출한 특징 파라미터를 사용한 경우와 음성 특징파라미터에 입술 패턴에 대한 영상정보를 통시에 사용한 경우 DHMM과 신경망을 통하여 각각 인식률을 비교해 보았다. 그 결과 입술패턴에 대할 영상정보도 음성인식에 사용 할 수 있음을 알 수 있었다.

• 한국항해학회지
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• 제8권2호
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• pp.43-50
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• 1984

When the static load is applied to the ship's hull the deflection due to the bending moment from longitudinal direction has not been considered in the usual calculation of maximum bending moment. In fact, however, the deflection of ship's hull must be affected by the above-stated bending moment, and in this case the value of the maximum bending moment would be lessened in comparision with the result of usual calculation. In this paper, the author at first calculated the difference between the two values in case of rectangular barge, and suggested a practical criterion of longitudinal strength.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2007년도 춘계학술대회
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• pp.295-307
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• 2007

This paper introduces statistical test principles, statistical procedures and tests for exponential distribution. This paper also shows compliance test plans for success ratio and constant failure rate, and goodness-of-fit tests for Weibull distribution. Moreover, this paper presents procedures for comparision of two constant failure rates, and dependability of products containing reused parts.

• 한국환경보건학회지
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• 제19권4호
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• pp.9-13
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• 1993

This paper describes the impact of reflected sound in tunnel. The impact of reflected sound is obtained from making a comparision between measurements of tunnel and bridge. Sound level of tunnel is higher than that of bridge because reflected sound is generated in tunnel. Road traffic noise cannot be freely propagated because there are many buildings in urban. Therefore, a tunnel effect is generated in urban road. The impact of reflected sound is generated not only in tunnel, but also in urban road. This study provides the basic data for tunneling work and noise control strategy in urban road.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2011년도 춘계학술대회 및 Fine pattern PCB 표면 처리 기술 워크샵
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• pp.147-148
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• 2011

아연말 코팅은 희생부식에 의한 기재보호의 수단으로서 사용되고 있으며, 현재 볼트의 절반을 차지하고 있는 주요 공정이라 할 수 있다. 본 연구에서는 실제 작업현장에서 사용되는 아연말 코팅액에 3가 chromate액을 배합하는 공정연구등 다양한 공정시스템을 적용하여 생산된 시제품들을 기존 볼트와의 내식성을 상호 비교하였다.