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김영택,오성록,백승환,김병만,김동호,부광석 제어로봇시스템학회 2008 제어로봇시스템학회 국내학술대회 논문집 Vol.2008 No.10
This paper describes the tracking of a weld seam with multi pass using a LVS(Laser vision Sensor). When the robot welds weldment with an wide bead, a weaning motion of the weld torch attached at end effect of robot is required, and can be calculated by using measured geometry information from LVS. LVS consists of a CCD camera and a frame grabber, and the geometry information can be calculated by using Matrox image library. TMS320F2812 DSP chip has been accepted the weld path generation, which is transferred to a robot motion controller. The weld process by a image processing has uncertain weld seam information due to many restriction such as a spatter, and an arc light. Thus, in this research, we propose an algorithm for a multi path generation based on uncertain measured geometry information, and evaluate it in terms of simulation experiments.
중재적 신경근 치료술 후 발생한 기흉 - 증례 보고 -
김영택 대한마취통증의학회 2007 Anesthesia and pain medicine Vol.2 No.3
Pneumothorax is the presence of gas in the pleural space. Traumatic pneumothorax results from penetrating or nonpenetrating chest injuries and iatrogenic pneumothorax occurs as a consequence of a diagnostic or therapeutic maneuver. When interventional muscle and soft tissue stimulation (IMNS) therapy is performed, iatrogenic pneumothorax is not common, but once it has occurred, it gives suffering and pain to both the patient and physician. We experienced three cases of iatrogenic pneumothorax after IMNS therapy. Commonly, the patients with peumothorax are treated with a tube thoracostomy on admission, but these patients can be simply treated with simple observation, oxygen inhalation and simple aspiration without admission and the results are satisfactory. Although iatogenic pneumothorax after IMNS therapy appears to be an rare, IMNS procedure still must be done with care.
지능형 퍼지 추론 기법을 적용한 공교육의 정성 평가방법
김영택 한국컴퓨터교육학회 2014 컴퓨터교육학회 논문지 Vol.17 No.1
To enhance the practical usage of solely quantitative evaluation method for each students on the current public education fields which might cause some social problems, an intelligent and adaptive fuzzy logical inference methodology for the additional qualitative evaluation technique is proposed to utilize each students personal characteristic properties to be evaluated. Proposed method uses some verbal descriptions for the linguistic qualifier in addition to the grade points. An imaginary virtual experimentation only has been implemented due to some difficulties with the critical national educational policy problems in the case of some possibly real and practical experimental environments to be utilized for the simulation. 공교육 현장에서 일어나고 있는 각종 정량적 평가의 문제점을 고려하고, 학생들의 교과목 점수 외의 개별 특성을 반영하여 평가에 적용 할 수 있는 정성적 평가 기법을 제안하기 위해 지능형 퍼지논리 추론의 적응성과 가능성을 이용하는 방법론적 고찰을 연구하였다. 각 급 학교의 평가에서 정량적 점수에 추가하여 평어평가를 활용하여 개인의 정성적 특징을 반영하는 기법을 제안하고, 한편으로, 교육정책 관련 사안으로서의 실제적인 실혐 환경구축 및 구현의 어려움으로 인해 가상적인 환경에서의 실험결과를 제시하였다.
Cinnamoyl chloride와 PEI 수지를 이용한 감광성 고분자 합성 연구
김영택,오성상,류해윤,윤세훈,이의수 한국공업화학회 2004 응용화학 Vol.8 No.2
Derivative of CC(cinnamoyl chloride) and PEI(polyethyleneimine) were selected to make photochemicals for patterning(lithography) of a flexible substrate. Crosslinking are formed by photoaddition between an excited cinnamoyl group of one PEI cinnamate chain with that of a ground state cinnamoyl group belong to another. At UV 254㎚(max UV280㎚) absorbance PEI cinnamate was crosslinked, as a result of that, a phenomenon of the solubility decrease was appeared.