• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 1997년도 추계학술대회논문집
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• pp.194-197
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• 1997

The texture of a 0.25mm dia high-carbon(0.73%) steel wire made by drawing the patented and brass coated 1.4mm wire through 22 dies with a die-angle of 12$^{\circ}$has been measured. The ideal fiber texture was obtained in the center layer, while the circular texture and the near fiber texture having {111}<110> and weak {112}<110> components were obtained in the intermediate and surface layers, respectively. The circular texture was approximated by {110}<110> plus {110}<114>. The texture could be predicted by the Taylor-Bishop-Hill theory coupled with FEM for deformation.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 춘계 학술발표회
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• pp.132-135
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• 2009

In order study, experimental stress-strain relationships were achieved for various suctions by triaxial tests. A failure envelop was occurred on a plane in p-q-$\psi$ space, since the level of matric suction is in the small range. It was found that the failure criteria could be defined uniquely by the Bishop stress and were also independent of matric suctions. At the level of small strain, deformation moduli were evaluated according to matric suctions by fitting to Ramberg-Osgood model. It was found that deformation moduli increase as matric suctions increase.

• 대한화학회지
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• 제14권1호
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• pp.133-136
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• 1970

The quadratic and cubic force constants of hydrogen molecule are calculated by use of the one center function of Bishop. The master formula on which the computation is based was suggested by the previous work of one of the present authors. The results are in good agreement with the experimental values.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2002년도 봄 학술발표회 논문집
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• pp.189-196
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• 2002

According to the Korean Design Code for port and harbor facilaties, bearing capacity of rubble mound under eccentric and inclined load is calculated by the simplified Bishop method, and strength parameters are recommended to be c=0.2kg/$\textrm{cm}^2$ and ø=35$^{\circ}$for standard rubble if the compressive strength of parent rock is greater than 300kg/$\textrm{cm}^2$, quoting from research results by Jun-ichi Mizukami(1991), But this facts have never been certified in Korea because there was not large-scale triaxial test apparatus until 2000 in Korea. Firstly in Korea, the large-scale triaxial test (sample diameter, 30cm and height, 60cm) on the rubble originated from porous basalt rock in North-Cheju was accomplished. Then strength parameters for basalt rubble produced in North-Cheju are recommended to be c=0.3kg/$\textrm{cm}^2$ and ø=36$^{\circ}$if the compressive strength of parent rock is greater than 400kg/$\textrm{cm}^2$.

• 한국지반공학회논문집
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• 제16권5호
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• pp.55-62
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• 2000

심층혼합처리공법에 의해 개량된 연약지반상에 사석제를 축조한 후 배면매립을 실시할 경우 사석호안의 변형거동을 관찰하기 위해 계측을 실시하였다. 개량지반상에 사석호안을 축조하기 위한 설계기준을 마련하기 위하여 유한요소법을 이용한 지반변형해석과 Bishop의 간편법을 이용한 사면안정해석을 실시하였다. 이들 해석을 사석제부, 연약지반부 그리고 뒷채음성토부의 토질조건 및 형상이 다른 여러 경우에 대하여 실시하여 그 결과를 서로 비교 분석하였다. 즉, 해석결과를 이용하여 사석제 정사부에서의 수평변위량과 침하？을 호안의 사면안정률과 연과지어 검토하였다. 본 연두결과 사석호안의 사면안전률 1.3보다 낮을 경우 상당히 큰 지반변형이 발생하는 것으로 나타났다.

• 한국안전학회지
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• 제18권2호
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• pp.125-131
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• 2003

In recent years, the Korean Army made use of fork-lifters or conveyors when loading and/or unloading military material in order to prevent accidents and to promote efficiency of military material handling activities. However, in troops smaller thin battalions, manual material handling activities are still committed for many reasons. In this thesis, a brand new loading/unloading device for efficient military material handling or manual workers was developed, and its validation study was conducted through objective assessment based on electromyography, subjective assessment based on Body-Map technique developed by Corlett and Bishop, and finally work performance comparison. The results of EMG analysis showed that muscular workload improved by 24% when using the device compared to manual work without the device, and complain of each body part was remarkably reduced. In addition, remarkable effectiveness enhancement was observed in the work performance. Consequently, it could be concluded that ergonomic devices like one developed in this research should be studied further in the ergonomic sense as well as in the economical sense.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2003년도 추계학술발표논문집 (하)
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• pp.1921-1924
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• 2003

최근 무선 네트워크의 이용이 증가하고 있다. 일반적으로 무선 네트워크 환경은 유선 네트워크 환경 보다 취약한 것으로 알려져있다. 본 논문에서는 무선랜 취약점과 이동 단말 운영체제 취약점 분석에 단위 취약성과 복합 취약성을 이용한 취약점 분석 방법을 적용하여본다. 단위 취약성 분석 방법은 Bishop의 가설을 바탕으로 보안 취약성 평가를 위한 시뮬레이션에 적용할 수 있도록 구체화한 것이다. 이를 통하여 단위 취약성 분석방법이 무선 환경까지 적용가능한지를 알아보고, 그 특성을 알아본다.

• 한국안전학회지
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• 제11권4호
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• pp.151-155
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• 1996

사면안정 해석에 있어서 기존의 연구는 대부분 침투력의 값을 고려하지 않고 안전율을 계산하여 왔다. 그러나 비정상 침투시 침투력은 안전율에 많은 영향을 미친다. 따라서 본 연구에서는 사면안정해석에 있어서 침투력의 영역이 사면의 안전율에 미치는 영향이 큰 것을 확인하기 위해서 Bishop's Simplified Method를 이용하여 이론적으로 침투력을 고려한 안전율계산 수식을 유도하였다. 사면안정 이론식의 전개방법은 제체에 침윤선이 형성될 경우 침윤선을 기준으로 각 절편을 수중상태와 습윤상태로 구분하고, 이 습윤상태의 절편토체에 작용하는 침투력을 고려하여 사면안정수식을 해석했다.

• Geomechanics and Engineering
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• 제13권3호
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• pp.447-458
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• 2017

This study proposes a sensitivity analysis method for slope stability based on the least squares support vector machine (LS-SVM) to examine the influencing factors of slope stability. The method uses LS-SVM as an algorithm for machine learning. An appropriate training dataset is established according to the slope characteristics, and a testing dataset is designed orthogonally. Results of the testing data in the experiment design are calculated after training using the LS-SVM model. The sensitivity of the slope stability of each factor is examined via gray correlation analysis. The results are consistent with those of the traditional Bishop analysis and can be used as a reference for optimizing slope design.

• Journal of applied mathematics & informatics
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• 제39권3_4호
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• pp.487-496
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• 2021

In this paper we show that if A ∈ L(X) and B ∈ L(Y), X and Y complex Banach spaces, then A ⊕ B ∈ L(X ⊕ Y) is subscalar if and only if both A and B are subscalar. We also prove that if A, Q ∈ L(X) satisfies AQ = QA and Q^p = 0 for some nonnegative integer p, then A has property (C) (resp. property (𝛽)) if and only if so does A + Q (resp. property (𝛽)). Finally, we show that A ∈ L(X, Y) and B, C ∈ L(Y, X) satisfying operator equation ABA = ACA and BA ∈ L(X) is subscalar with property (𝛿) then both Lat(BA) and Lat(AC) are non-trivial.