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咸玉相,朴年姬 啓明大學校 生活科學硏究所 1990 科學論集 Vol.16 No.-
Until now, I measured boy middle school student's body, Compared and analyzed it according to statistics and established the size of upper and lower wear. The result is as following ; 1. As boy middle school student's age is getting older and older, in general, height items and length items were increased much more than any other items. From thirteen to years old all kind of items were increased rapidy and from fourteen to fifteen, they were increased gradually. 2. According to Rohrer Index, the result of classification, the average of this study : Thirteen(1.27), fourteen(1.26), fifteen(1.24) bolongs to normal range. As they are getting older and older the percentage of thin body type is higher than the fat body type's Thin body type is related with length items and height items and fat body type has deep relationship with width items, depth items and girth items. 3. The correlationship of height items has high correlationship, weight has high correlationship with width items and girth items, height has high correlationship in height items and legth items but low correlationship in depth items. 4. In upper wear frequency, for establishment of clothes' size, bust girth and shoulder width is scattered left of upper side. As height is taller, they were scattered in the right of lower side. In upper wear frequency, as height is smaller, hip girth and waist girth is scattered on left of upper side as height is taller waist girth is Scattered on the right of lower side. 5. The size of upper wear for clothing construction is eighteen from 233 to 877 and the size of lower wear is eighteen from 233 to 877 and according to its size, In produced the middle price of other body part.
정동연,김종수,한성현 한국공작기계학회 2003 한국공작기계학회 추계학술대회논문집 Vol.2003 No.-
This paper proposed trajectory tracking control of Mobile Robot. Trajectory tracking control scheme are Real coding Genetic-Algorithm and Back-propergation Algorithm. Control scheme ability experience proposed simulation.
정동연,장영희,차보남,한성현 한국공작기계학회 2004 한국공작기계학회 춘계학술대회논문집 Vol.2004 No.-
Developed shape awareness technology and vision technology for optical lens slant in this research, and including external form state of lens for the performance verification, developed so that can be good, achieve badness finding. And, establish to existing reflex data because inputting surface badness degree of scratch's standard specification condition directly, and error designed to distinguish from product more than schedule error to badness product by normalcy product within schedule extent after calculate the error comparing actuality measurement reflex data and standard reflex data mutually. Developed system to smallest 1pixel unit though measuring is possible 1pixel as 3.7μm×3.7μm(0.1369×1O^(-4)mm²) the accuracy to 10^(-4)mm minutely measuring is possible performance verification and trust ability through an experiment prove.
정동연,김용태,한성현 경남대학교 공업기술연구소 2000 硏究論文集 Vol.18 No.-
본 논문에서는 일반적으로 고정된 위치에서 검사하는 비젼 시스템이 아닌 카메라를 로봇의 말단효파부에 장착하여 렌덤하게 움직이는 물체를 추적하여 지능적으로 매니퓰레이터의 위치 및 속도를 제어하여 정확한 위치에 납땜 작업을 한 후 비젼 검사를 실시하는 로봇 비젼 시스템을 설계한다. 자동검사를 위한 비젼기술은 실시간 실현을 위해 디지털 신호 처리기를 사용한 새로운 고성능 비젼 알고리즘을 개발해서 S사의 전자부품 조립검사라인, 즉 카메라 조립검사라인에서 라인을 따라 흘러 들어오는 백커버(Back Cover)들을 정해진 위치를 따라 로봇을 이동하여 자동 인식한다. 인식된 백커버의 납땜상태를 다양한 위치 및 이동공정에서 대해서도 유연하게 검사를 자동으로 수행하고 품질기준 통과여부를 자동 판단할 수 있는, 이른바 다공정 제품의 형상인식 및 자동검사용 로봇 비젼 기술을 개발하기 위한 연구가 수행되었다. 그리고 제안된 로봇 비젼 시스템의 성능을 컴퓨터 시뮬레이션 및 실험을 통하여 S사의 조립라인중 5번 Cell의 유사공정을 모델링하여 그에 대한 유사한 실험을 통해 그 신뢰성을 입증하고자 한다. In this paper, we have proposed a new approach to the design of robot vision system to develop the technology for the automatic test and assembling of precision mechanical and electronic parts for the factory automation. In order to perform real time implementation of the automatic assembling tasks in the complex processes, we have developed an intelligent control algorithm based-on neural networks control theory to enhance the precise motion control. Implementing of the automatic test tasks has been performed by the real-time vision algorithm based-on TMS320C31 DSPs. It distinguishes correctly the difference between the acceptable and unacceptable defective item through pattern recognition of parts by the developed vision algorithm. Finally, the performance of proposed robot vision system has been illustrated by experiment for the similar model of fifth cell among the twelve cell for automatic test and assembling in S company.
오프라인 프로그래밍을 이용한 스카라 로봇의 통합제어시스템 설계
정동연,한성현 한국공작기계학회 2002 한국생산제조학회지 Vol.11 No.3
In this paper, we have developed a Window 98 version Off-Line Programming System which can simulate a Robot model in 3D Graphics space. The SCRA robot with four joints (AFRA SM5) was adopted as an objective model. Forward kinematics, inverse kinematics and robot dynamics modeling were in the developed program. The interface between users and the OLP system in the Window 98's GUI environment was also studied. The developing language is Microsoft Visual C++. Graphic libraries, OpenGL, by silicon Graphics, Inc. were utilized for 3D Graphics.
이연,김상하 충남대학교 기초과학연구소 1995 忠南科學硏究誌 Vol.22 No.1
One of the most compelling problems facing the IP Internet is IP address depletion. This paper introduces the three solutions and discusses their characteristics. For these solutions to operate properly, it is necessary to partition the IP address space into two parts - reusable addresses used internally for local area networks, and the globally unique addresses. The main advantage of these solutions is that they can be installed without changes to any existing systems, although FTP will fail in some but not all cases. This paper analyzes their pros and cons.
공정제어에 의한 Ti-Al계 복합화합물의 제조에 관한 기초 연구
정연채,이동수,윤대원,이상화 동아대학교 생산기술연구소 2000 生産技術硏究所硏究論文集 Vol.5 No.1
The Ti-Aluminide intermetallic compounds which used in the tumbler and planetary ball mill were fabricated by MA-SPS. The results are as follows. 1. The Planetary ball mill alloying time was shorter than the tumbler and the mainly produced phase after SPS was Ti_3Al phase. 2. The process which added N_2gas during mechanical alloying(MA) decreased mechanical alloying time and increased the yield ratio of alloying powders. 3. The density of sintered body nearly reached the theory density when SPS sintering temperature was over 1050℃ Therefore Ti-Aluminide intermetallic compounds could be produced.
사용자 인터페이스의 평가방법으로서 magnitude scale 적용
이상도,곽효연 동아대학교 공과대학부설 생산기술연구소 1997 生産技術硏究所硏究論文集 Vol.2 No.1
The objective of this paper describes that a magnitude scaling can be used in subjective method of interface evaluation. Therefore, to demonstrate its validity this paper surveys which type of interface is the most usable for using the magnitude scaling. The results show that user prefers icon-mouse in types of interfaces.
정동연,김홍래,한성현 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-
This paper proposed trajectory tracking control of Mobile Robot. Trajectory tracking control scheme are Real coding Genetic-Algorithm and Back-propergation Algorithm. Control scheme ability experience proposed simulation.