• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2006년도 춘계학술대회
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• pp.125-125
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• 2006

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1998년도 하계종합학술대회논문집
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• pp.627-630
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• 1998

In this study, we derived stop-and-go normalized DD, dual-mode normalized sato, dual-mode NCMA blind equalization algorithm for complex data. and then, the convergence characteristics of the proposed SG-NDD, dual-mode NSato blind equalization algorithms are compared with those of SG-DD, dual-mode sato algorithm. In genral, the normalized blind equalization algorithms have better convergence characteristics than the conventional algorithms.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2005년도 추계 학술발표회 제17권2호
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• pp.247-250
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• 2005

The aim of this study was to examine the emission of acoustic signals from three reinforced concrete beams at cracking and failure processes. Acoustic emission(AE) characteristics of reinforced concrete beams were investigated during the entire loading period. AE technique was used to evaluate the characteristics of damage process and the failure mechanism of reinforced concrete beam with natural and recycled aggregates. The influences of different aggregate in concrete on AE characteristics were investigated as well.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2006년도 춘계학술발표회 논문집(I)
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• pp.322-325
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• 2006

This study was conducted to develop the crack location technique for CFRP reinforced concrete beam using AE method. To experimentally prove the crack source location made of four reinforced concrete beams strengthened in shear with CFRP. The results compared the real cracking location with the source location has perceived by AE monitoring, before it is appeared the primary crack by visual observation. So, This study used by a basic data in constructing the system of the failure warning at application.

• Journal of Radiation Protection and Research
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• 제26권3호
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• pp.243-248
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• 2001

Neutron reference fields of Korea Atomic Energy Research Institute (KAERI) for calibrating neutron measuring devices to be used in radiation workplace monitoring consist of two kinds of neutron spectra, the direct and the scattered neutron fields, which are produced by using radionuclide neutron sources, 252Cf and 241AmBe sources. Necessary parameters for calibration such as the anisotropy factor of each neutron source and the room-scattered fraction of some neutron surveymeters in the KAERI calibration facility were determined by calculation or measurement. Spectral measurement of scattered neutron fields were performed at each reference calibration point using a Bonner Multi-sphere Spectrometer (BMS) and the dosimetric quantities for calibration also estimated from the neutron energy spectra which were unfolded using the BUNKI code.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.115.2-115
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• 2001

This paper is the result of constructing information processing system such as living creatures´ brain based on artificial life techniques. The living things are best information processing system in themselves. One individual is developed from a generative cell. And a species of this individual has adapted itself to the environment through evolution. We present a new type of neural architecture consistiong of chaotic neurons and implementation. To evolve chaotic neural systems, we use cellular automata. In order to obtain the best neural networks in the environment, we evolve the arrangement of initial cells. The cell, that is neuron of neural networks, is modeled on chaotic ...

• 천문학회보
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• 제34권2호
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• pp.64.2-64.2
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• 2009

• The Journal of the Acoustical Society of Korea
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• 제23권2E호
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• pp.68-73
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• 2004

In the East Sea of Korea, the ocean environments are known to have strong variations in space and time. Their effects are very important factors in sound propagation and sonar performance. We consider the environmental factors such as eddies and thermal fronts affecting underwater sound propagation and target detection performance by sonars. Unfortunately, however, the detailed structure of eddies is usually difficult to understand by using the sea surface temperatures from infrared images alone or a few profiles from the CTD (conductivity, temperature and depth) castings. The temperature fields of eddy and thermal front are simulated with typical patterns of those obtained from several observations. This paper delivers the overviews of environments and acoustic models with their simulation results on sonar performance.

• Bulletin of the Korean Chemical Society
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• 제27권8호
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• pp.1164-1170
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• 2006

The synthesis of a new series of 1$\beta$-methylcarbapenems having 5-($\alpha,\beta$-disubstituted ethyl)pyrrolidine moiety is described. Their in vitro antibacterial activities against both Gram-positive and Gram-negative bacteria were tested and the effect of substituents on the pyrrolidine ring was investigated. A particular compound (VIh) having $\alpha$-hydroxy-$\beta$-piperazinylethyl substituted moiety showed the most potent activity.

• 한국정보과학회 언어공학연구회:학술대회논문집(한글 및 한국어 정보처리)
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• 한국정보과학회언어공학연구회 1996년도 제8회 한글 및 한국어 정보처리 학술대회
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• pp.222-228
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• 1996

기존의 미등록어 추정 방법은 대부분 단일 어절 접근 방법으로 단일 어절에서 추출할 수 있는 추정 정보가 부족하여 과분석과 오분석의 가능성이 높았다. 그래서 동일 미등록어를 가진 어절들을 동시에 분석하는 유사 어절 접근 방법이 제시되었다. 그러나 이 방법도 유사 어절의 범위를 조사나 어미만 다른 어절로 정의함으로써 수집될 수 있는 유사 어절의 수가 제한되어 대략의 텍스트에서만 적용이 가능하였다. 이에 본 논문은 유사어절을 동일 음절열을 공유하는 어절들로 확장 정의하여 작은 크기 N의 텍스트 윈도우에서 유사 어절의 발견 가능성을 높임으로써 실시간으로 미등록어를 추정할 수 있게 하는 방법을 제시한다. N을 100으로 한 실험결과는 미등록어 추정 정확도가 99.3%였고 재현율은 약 32%였다.