• 한국염색가공학회지
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• 제6권3호
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• pp.8-14
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• 1994

A new flame retardant diphenyl butylamidophosphate (DPBAP) for PET fabric was synthesized and its flame retardancy was examined. The results have shown that PET fabrics treated by DPBAP(with DPBAP and on 4-10 %) show excellent flame retardancy. Since the DPBAP treated PET fabric show essentially no change in the drape stiffness and the tensile strength, it is believed that DPBAP is chemically stable in PET fabric. In addition to this, the washing fastness of DPBAP on PET fabric tested by the 5 times of water washing method also appeared to be excellent. Judging from the fact that DPBAP was synthesized from relatively cheap material as well as the above cited DPBAP properties as a good flame retardant, the potential of DPBAP to be developed as a commercial flame retardant for PET fabric seems to be high.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2014년도 추계학술대회
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• pp.211-212
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• 2014

본 논문에서는 분석 단계의 이러한 식별 및 인증의 보안요건을 제시한다. 첫째, 각자 가지고 있는 개별 ID는 유일하게 식별되어야 한다는 것이다. 둘째, 패스워드는 길이제한 및 표준 조합을 적용해야 하며, 주기적으로 변경해 줘야 한다는 것이다. 셋째, ID/PW 이외의 보다 강화된 인증 방식을 제공해야 하며, 인증 프로세스는 정의된 보안 요건을 만족해야 한다.

• 디지털콘텐츠학회 논문지
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• 제18권1호
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• pp.141-147
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• 2017

스케일러블 HEVC에서 상위계층의 계층 간 예측에서 기본계층의 부호화 잔차 영상에 대한 업샘플링 된 결과를 참조하여 예측하게 된다. 본 논문에서는 고효율 영상 압축 기반 스케일러블 부호화 (Scalable Extension of High Efficiency Video Coding)에서 상위계층 잔차 데이터 예측에 대한 개선 기법을 제안한다. 제안하는 적응적 필터 선택 기법은 스무싱 필터와 샤프닝 필터를 사용함으로써 계층 간 예측 방법에서 효율을 향상시킨다. 기존의 업샘플링 필터와 두 개의 필터를 추가하여 율-왜곡 비용함수 기반의 경쟁기법을 통한 계층 간 예측 알고리즘을 SHVC 5.0에 구현함으로써 Y, U, V 컴포넌트에 대한 평균 1.5%, 2.1%, 1.7%의 BD-rate 향상을 보여준다.

• 한국정밀공학회지
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• 제25권10호
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• pp.130-136
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• 2008

The purpose of this study was to investigate chaotic characteristics of major joint motions during treadmill walking. Gait experiments were carried out for 20 healthy young women. The subjects were asked to walk on a treadmill at their own natural speeds. The chaos analysis was used to quantify nonlinear motions of eleven major joints of each woman. The joints analyzed included the neck and the right and left shoulders, elbows, hips, knees and ankles. The recorded gait patterns were digitized and then coordinated by motion analysis software. Lyapunov exponent for every joint was calculated to evaluate joint characteristics from a state space created by time series and its embedding dimension. This study shows that differences in joint motion were statistically significant.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2014년도 추계학술대회
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• pp.201-202
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• 2014

본 논문에서는 우리에게 정신적, 금전적으로 상당한 피해를 주는 국내외 해킹 사례를 살펴보도록 한다. 웹 사이트 공격의 약 75%가 응용프로그램 즉, S/W의 취약점을 악용한 것임을 상기시킨다. 그리고 이러한 취약점들을 많이 가지고 있는 S/W 개발 보안의 주요 이슈들을 알아보도록 한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2014년도 추계학술대회
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• pp.205-207
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• 2014

본 논문에서는 엘리베이터 내에서의 폭행 장면을 효율적으로 추출하기 위해 컬러히스토그램의 장점과 $x^2$ 히스토그램의 장점을 결합한 컬러-$x^2$ 히스토그램을 이용하였다. 또한 기존의 컬러-$x^2$ 히스토그램을 이용하여 키 프레임을 찾아내기 위해 임계값을 찾아낼 때, 실제 폭행 장면 인지 아닌지를 판별하는 확률을 높이기 위해 20개의 샘플영상을 이용하여 통계적인 판단을 이용하였다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2014년도 추계학술대회
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• pp.227-228
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• 2014

본 논문에서는 주차 시설 이용 현황 중 하나인 차량 번호판 조사를 수행하도록 한다. 관찰자가 없이 카메라를 이용하여 조사 시간 간격을 주어 조사하도록 한다. 조사 시간 간격을 각 주차된 차량에 부여하여 평균 주차 지속 시간을 결정하도록 한다. 또한 주차면 1개당 1시간당 주차 차량 대수인 주차 회전율을 조사한다.

• 한국패션뷰티학회지
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• 제5권4호
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• pp.119-129
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• 2007

This study was designed to investigate what an effect Meridian massage widely practiced in the skin and fatness clinics gives to the control of women's lower body fatness. 8 woman students in the J beauty school in Seoul were selected as experimental group. After measuring their femoral or thigh circumference, 4 weeks of Meridian massage was practiced. Another 8 women who were not included in the experiment were selected as the control group. As the results of 4 week Meridian control on lower body fatness, P value of the variance analysis was over 0.05, meaning that there was not a statistical significance. But the measurement of femoral or thigh circumference decreased from 55.85 cm to 53.34 cm, indicating that more often Meridian massage was practiced, the more lower body fatness decreased. This suggests that Meridian massage gives a positive effect to lower body fatness control. In a survey after the experiment, more than 88% of the survey participants answered that Meridian massage was effective to removal of edema, decrease in thigh circumference, and deep sleep, indicating that satisfaction with Meridian massage was high. Based on the findings of this study, it is necessary to study further on quantifying the effect of Meridian massage, which is practiced just to control lower body fatness.

• 대한가정학회지
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• 제20권3호
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• pp.1-8
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• 1982

In this study, we attempted to make an original pattern of clothing for an abnormal type of figure, especially for the type of kyphosis. We measured the curvature of the spine of a woman with kyphosis with a Martin measuring instrument and a silhouetter in the following ways. First, we counted the rate of shrinkage of the standard lines drawn on the surface of the body according as the body moved. Secondly, placing the front and back darts, the front and back shoulder darts and the side darts according to“Munhwa”pattern, we made cubic cuttings of four moving postures as well as the standing one. Thirdly, we superposed the developed patterns of the standing and the moving postures, measuring the position change and the amount to the change of the darts, and compared them. The results are as follows: 1) In the developed pattern of a cubic cutting of the basic pattern and the standing posture, the neckhole became larger than that of the basic pattern, and the waist line was lowered than that of the basic pattern because the center back line was shortened due to the curved backbone.

• International Journal of Control, Automation, and Systems
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• 제2권3호
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• pp.398-405
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• 2004

A human-friendly interactive system that is based on the harmonious symbiotic coexistence of humans and robots is explored. Based on the interactive technology paradigm, a robotic cane is proposed for blind or visually impaired pedestrians to navigate safely and quickly through obstacles and other hazards. Robotic aids, such as robotic canes, require cooperation between humans and robots. Various methods for implementing the appropriate cooperative recognition, planning, and acting, have been investigated. The issues discussed include the interaction between humans and robots, design issues of an interactive robotic cane, and behavior arbitration methodologies for navigation planning.