• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.46.2-46
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• 2001

A method of interactive human interface for motion modification of an articulated object model like a human body, a multiple joints robot, etc. has been developed, and implemented to a human body motion model. In the case of computer software models, the initial data setting for overall motion is rather easy. However, modifying or correcting the initially set motion is rather difficult for keeping consistency. In this research, the requirements shown below have mainly been set as the specifications ...

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2005년도 후기학술대회논문집
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• pp.63-64
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• 2005

This paper proposed a miniaturization passive element employing the multiple microstrip line. As a result of this method, we realized the transmission line miniaturized. The applying structure designed and evaluated a power divider on GaAS MMIC circuit. It draws a plan in a center Frequency as the observation could do good characteristic.

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2005년도 전기학술대회논문집
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• pp.401-405
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• 2005

This paper proposed a miniaturization passive element employing the multiple microstrip line. As a result of this method, we realized the transmission line miniaturized. The applying structure designed and evaluated a power divider on GaAS MMIC circuit. It draws a plan in a center Frequency as the observation could do good characteristic.

• 한국정보처리학회논문지
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• 제7권5호
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• pp.1474-1481
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• 2000

The number of keystream cycle sequences has been proposed as a characteristic of binary sequence generator for cryptographic application, but in general the most of binary sequence generators have a single cycle. On the other hand, S-box has been used to block cipher for a highly nonlinear element and then we apply it to the stream cipher with a high crypto-degree. In this paper, we propose a multiple-cycle binary sequence generator based on S-box which has a high nonlinearity containing SAC property and analyze its period, linear complexity, randomness and the number of keystream cycle sequences.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.87-87
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• 2000

In this paper, an integrated design of fault detection, diagnosis and reconfigurable control tot multi-input and multi-output system is proposed. It is based on the interacting multiple model estimation algorithm, which is one of the most cost-effective adaptive estimation techniques for systems involving structural and/or parametric changes. This research focuses on the method to recover the performance of a system with failed actuators by switching plant models and controllers appropriately. The proposed scheme is applied to a fault tolerant control design for flight control system.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.680-687
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• 2009

Several kinds of Electrical Wires have been used in Electric Multiple Units(EMU) for the supply of electric power, supervision, and the propagation of control signals. These Electrical Wires must be inspected for safe and stable operation of EMU. The degradation diagnosis to estimate the integrity of Electrical Wires has recently been requested according to the long use of EMU. This paper describes on application of diagnosis method for EMU.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 1988년도 제30회 수공학연구발표회논문초록집
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• pp.148-157
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• 1988

단위유량도에서의 중첩개념과 비선형성 감소곡선개념을 토대로 하여 비선형수문곡선일반식을 도출하였다. 도출한 식을 적용한 결과 유출현상의 특징인 지체와 감쇠성을 효과적으로 고려할 수 있었다.

• 디지털융복합연구
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• 제15권10호
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• pp.485-492
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• 2017

본 연구는 성인의 예방처치경험 여부가 진료만족도 및 치과공포도에 미치는 융복합적인 영향을 확인하고자 수도권에 거주하는 20세 이상 성인 292명을 대상으로 2017년 1월부터 4월까지 설문조사를 실시하였다. 수집된 자료는 SPSS 22.0 프로그램을 이용하여 $x^2-test$, t-test(검증), 다중회귀분석(multiple regression analysis)을 실시하였다. 성인의 예방처치경험은 불소도포가 가장 많았으며, 불소도포경험이 있는 경우 진료만족도가 높게 나타났다. 한편 예방적 스케일링경험이 있는 경우 치과 공포도는 낮게 나타났다. 다중회귀분석을 한 결과 진료만족도에 영향을 미치는 변수는 불소도포경험이었으며, 치과공포도에 영향을 미치는 변수는 구강건강상태, 예방적 스케일링경험으로 나타났다. 본 연구의 결과는 예방처치경험이 있는 경우 진료만족도는 높아지고 치과공포도는 낮아지는 것을 확인하였으므로 구강건강교육을 통한 예방처치의 중요성을 국민에게 인식시키고 치과예방처치 서비스를 제공함으로써 구강건강증진 향상을 기대할 수 있을 것이다.

• 디지털콘텐츠학회 논문지
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• 제19권7호
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• pp.1281-1287
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• 2018

이 연구에서는 중도중복장애아동을 위한 보완대체 의사소통(AAC) 앱의 모듈별 세부적 요소와 기능을 도출하고 이에 해당하는 인터페이스를 설계하였다. 연구 결과, 화면구성, 의사소통 판 편집, 시청각출력, 스위치&스캐닝 모듈별 세부 프로그램 구성은 다음과 같다. 화면구성 모듈은 의사소통 범주, 철자판, 즐겨찾기, 화면잠금, 설정 기능으로 구성된다. 의사소통 판 편집 모듈에서는 의사소통 범주, 상징, 즐겨찾기 편집 기능이 포함된다. 시청각적 출력 모듈은 청각적 출력의 형태로 음성의 높낮이, 강도, 속도, 음색을 개인별로 조정하는 기능을 제공한다. 시각적 출력의 형태에서는 칸의 배경색과 크기, 테두리 색과 두께를 조정한다. 스위치&스캐닝 모듈에서는 칸이 청각적, 시각적으로 표시되었을 때 스위치를 누름으로써 선택(클릭)이 이루어지는 기능을 제공한다. 향후 이 연구에서 제시한 프로그램을 실제로 구현한 AAC 앱의 개발이 필요하다.

• Smart Structures and Systems
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• 제26권3호
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• pp.373-390
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• 2020

Hybrid simulation (HS) is a versatile tool for structural performance evaluation under dynamic loads. Although real structural responses are often multiple-directional owing to an eccentric mass/stiffness of the structure and/or excitations not along structural major axes, few HS in this field takes into account structural responses in multiple directions. Multi-directional loading is more challenging than uni-directional loading as there is a nonlinear transformation between actuator and specimen coordinate systems, increasing the difficulty of suppressing loading error. Moreover, redundant actuators may exist in multi-directional hybrid simulations of large-scale structures, which requires the loading strategy to contain ineffective loading of multiple actuators. To address these issues, lately a new strategy was conceived for accurate reproduction of desired displacements in bi-directional hybrid simulations (BHS), which is characterized in two features, i.e., iterative displacement command updating based on the Jacobian matrix considering nonlinear geometric relationships, and force-based control for compensating ineffective forces of redundant actuators. This paper performs performance validation and application of this new mixed loading strategy. In particular, virtual BHS considering linear and nonlinear specimen models, and the diversity of actuator properties were carried out. A validation test was implemented with a steel frame specimen. A real application of this strategy to BHS on a full-scale 2-story frame specimen was performed. Studies showed that this strategy exhibited excellent tracking performance for the measured displacements of the control point and remarkable compensation for ineffective forces of the redundant actuator. This strategy was demonstrated to be capable of accurately and effectively reproducing the desired displacements in large-scale BHS.