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김종범,이무성,이완진,양갑승,서곤,김종호 全南大學校 觸媒硏究所 2002 觸媒硏究 論文集 Vol.23 No.-
Platinum catalysts supported on carbon were prepared by using various method. The particle size distribution of loaded platinum was examined using transmission electron microscope, and that was discussed relatively to the oxidation treatment of carbon black and loading method of platinum. In addition, the relationship between its particle size distribution and catalytic activities in the deep oxidation reaction of carbon monoxide and the reduction removal of dissolved oxygen by hydrazine. The number of functional groups on carbon black largely increased by the oxidation treatment with nitric acid compared to that with air or hydrogen peroxide. The large number of functional groups were effective for homogeneous loading of platium, dispersing highly homogeneous platinum particles of 2∼3 nm in a diameter by the methanol reduction method. On the other hand, a large amount of platinum could be loaded on carbon balck using an impregnation method, but the particle size distribution of platinum was poor in homogeneity. Platinum could be dispersed with extremely small particles using on ion exchange method, but the loading amount of platinum was very small. The activities of Pt/VX catalysts in the oxidation reaction of carbon monoxide and the redution of dissolved oxygen strongly varied with the number of platinum atoms exposed, regardless of the particle size, indicating that the highest catalytic activity was obtained on the Pt/VX catalyst prepared using the methanol reduction method due to the high dispersion and large loading of platinum.
Real-Time Object Tracking and Segmentation Using Adaptive Color Snake Model
Kap-Ho Seo,Jin-Ho Shin,Won Kim,Ju-Jang Lee 대한전기학회 2006 International Journal of Control, Automation, and Vol.4 No.2
Motion tracking and object segmentation are the most fundamental and critical problems in vision tasks such as motion analysis. An active contour model, snake, was developed as a useful segmenting and tracking tool for rigid or non-rigid objects. In this paper, the development of new snake model called "adaptive color snake model (ACSM)" for segmentation and tracking is introduced. The simple operation makes the algorithm runs in real-time. For robust tracking, the condensation algorithm was adopted to control the parameters of ACSM. The effectiveness of the ACSM is verified by appropriate simulations and experiments.
Intelligent Bed Robot System - Pose Estimation Using Pressure Sensing Mattress
Kap-Ho Seo,Changmok Oh,Ju-Jang Lee 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2004 International Journal of Assistive Robotics and Me Vol.5 No.3
An Intelligent Bed Robot System (IBRS) is proposed to help the elderly and the disabled for their independent life in bed. The IBRS is a special bed equipped with two robot arms and an array of pressure sensors attached onto the mattress. The pressure distribution on the mattress is used to estimate the pose of the patient, and an appropriate assistance is provided by the robot arms.
Rehabilitation and Welfare Robotics - An Intelligent Bed Robot System
Kap-Ho Seo,Changmok Oh,Ju-Jang Lee 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2008 International Journal of Assistive Robotics and Me Vol.9 No.1
An Intelligent Bed Robot System (IBRS) to help the bed-ridden elderly and disabled lead more independent lives is proposed. The IBRS is a special bed equipped with two robot arms and an array of pressure sensors attached onto the mattress. The pressure distribution on the mattress is used to estimate the pose of the patient, and appropriate assistance is provided by the robot arms.
Vibration Adaptive Vision Inspection System
Kap-Ho Seo,Yongsik Park,Sungjo Yun,Sungho Park,Jeong Woo Park 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10
Disturbance vibration reduction is critical in many applications using machine vision. The off-focusing or blurring error caused by vibration degrades its performance. Instead of going with the more familiar approach like vibration absorber, a real-time disturbance estimation and avoidance is proposed. Instantaneous motion due to the disturbance is sensed by an attitude heading reference system (AHRS) module. Modeling of periodic vibration is done to provide better performance. According to its modeling, the algorithm for vibration avoidance was described.
Rehabilitation and Welfare Robotics: An Intelligent Bed Robot System
Kap-Ho Seo,오창목,이주장 동국대학교 정보융합기술원 2008 International Journal of Assistive Robotics and Sy Vol.9 No.1
An Intelligent Bed Robot System (IBRS) to help the bed-ridden elderly and disabled lead more independent lives is proposed. The IBRS is a special bed equipped with two robot arms and an array of pressure sensors attached onto the mattress. The pressure distribution on the mattress is used to estimate the pose of the patient, and appropriate assistance is provided by the robot arms.
Condensation Principal Component Analysis: Application to Intelligent Bed Robot System
Kap-Ho Seo,Changmok Oh,Ju-Jang Lee 동국대학교 정보융합기술원 2008 International Journal of Assistive Robotics and Sy Vol.9 No.4
An Intelligent Bed Robot System (IBRS) is proposed to help the elderly and the disabled attain an independent life getting into and out of bed. The IBRS is a special bed equipped with two robot arms and an array of pressure sensors attached to the mattress. The pressure distribution on the mattress is used to estimate the position of the patient, and an appropriate assistance is provided by the robot arms.
Newly Developed Robot Arm for Active Services in Intelligent Bed Robot System
Kap-Ho Seo,Jin-Ho Shin,Changmok Oh,Ju-Jang Lee 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2006 International Journal of Assistive Robotics and Me Vol.7 No.4
An Intelligent Bed Robot System (IBRS) is proposed to help the elderly and the disabled for their independent life in bed. The IBRS is a special bed equipped with two robot arms and an array of pressure sensors attached onto the mattress in the previous research [1]. The pressure distribution on the mattress is used to estimate the pose of the patient, and an appropriate assistance is provided by the robot arms. Recently, a newly designed robot arm replaced the simple supporting robot arm in order to provide active services. The structure and control mechanism of the new robot arm is presented here.