• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.367-372
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• 2003

This paper shows about the machine simulation embodiment when it happened NC equipment and between workpiece and interference collision at 5 axises processing of aircraft parts. And this research has been chosen because of the highest equipment interference occurrence rate at aircraft parts processing of 5 axises horizontal machine. It can verify simulation and machining process through correlation about their dynamic relations. interference, collision as embodied virtual manufacturing system of machining tool, workpiece, and holder etc. that is necessary element in shape of machine tool and function and processing in imagination ball. Also. it verified about interference and collision between NC equipment parts and workpiece, for applied machine simulation to NC Data of actuality aircraft parts of BULKHEAD and FRAME.

• Journal of Institute of Control, Robotics and Systems
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• v.14 no.12
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• pp.1286-1293
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• 2008

This paper proposes a realization of robust trajectory tracking for an industrial robot by using PD-sliding mode hybrid control. The PD control has a good performance in the transient period while the sliding mode control has robustness against the system uncertainties. The proposed control method is proposed for the control of a multi-joint robot by taking advantages of both the PD and sliding mode controls. The embodiment of distributed controllers that drive 4-DOF axes has evaluated through experiments with the multi-joint robot AT1. The PD-sliding mode algorithm which is proposed in this paper shows a good performance in the transient period and robustness against disturbances and This paper shows accuracy of end-effector.

• Proceedings of the KSR Conference
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• 2005.05a
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• pp.971-978
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• 2005

21century world is changing by leaps and bounds and this among one of new issue ready front environment be. Specially, the human social economy enemy, current of change is already happening even if there is in traffic industry that back activity. That is, point that railroad has competitive power and comparative advantage than other transportation until transportation system construction that is environment-friendly as part of country comparative power strengthening is embossed newly. On this time, railroad reached time that environment management that it is applied that is environment-Paradigm over management whole as well as field of technology such as construction and rolling stocks is necessary. This paper wishes to grope plan that introduce this in railroading hereafter by examining necessity introduction in railway operation through environment marketing example. It must go to Ready front Green-railway.

• Journal of Oriental Neuropsychiatry
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• v.11 no.2
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• pp.201-214
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• 2000

1. Essence and Spirit of association go well embodiment of mind goes well.2. Being component part by Three Valuable Properties of human body that is Essence, Vital force and Spirit, Cause that disease results is something wrong of Essence, Vital force and Spirit.3. Essence. Vital force and Spirit cycle that see in Doga is that circulate through intermediate of saliva.4. Morality curative means getting stability of mind as removing greed and it is that disease moves backward then naturally.5. Fantasy and uneasiness about the future is cause of disease of mind.

• Journal of Advanced Marine Engineering and Technology
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• v.28 no.2
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• pp.200-209
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• 2004

The fuzzy control based on $\alpha$-level fuzzy set decomposition. It is known to produce quick response and calculating time of fuzzy inference. This paper derived the embodiment computational algorithm for defuzzification by min-max fuzzy inference and the center of gravity method based on $\alpha$-level fuzzy set decomposition. It is easy to realize the fuzzy controller hardware. based on the calculation formula. In addition. this study proposed a circuit that generates PWM actual signals ranging from fuzzy inference to defuzzification. The fuzzy controller was implemented with mixed analog-digital logic circuit using the computational fuzzy inference algorithm by min-min-max and defuzzification by the center of gravity method. This study confirmed that the fuzzy controller worked satisfactorily when it was applied to the position control of a dc servo system.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.13
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• pp.681-698
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• 2000

As volume of international trade is growing importance for service business and service trade are also increasing. Increasing importance of service trade in Korea is also a reflection of such international trading. In this treatise this writer did not address various topics in relation to international trade arising from service trade. But confined the topic to study of concept of service and concept and patterns of service trade. Depending on scholars concept of service may be varied and this holds true also with concept of service trade which also lends itself to various classification. Among them if the focus is concentrated to tax standard in international trade then it can be classified into service transaction. In other words classification can be made according to service trade separated from commodities transaction with embodiment of service and service trade accompanying commodities transaction. In this treatise this writer confined the topic to introduction of international service trade but issues arising in relation to such trade internationally are varied. For this reason more study on such topics will be required in future.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.10a
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• pp.272-276
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• 2003

The appearance of the computer composition system(MIDI) expects that non-musicians can make musics easily, but, in fact, non-musicians still compose hard. This thesis shows that a computer makes lord progress through a database, which in-putted all practicable cord progress. In other words, non-musicians just makes some melodies over the settled cord progress, so they can make a music more easely.

• Journal of the military operations research society of Korea
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• v.24 no.2
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• pp.170-186
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• 1998

The purposes of this paper are applying the IDEF(Integrated DEFinition), which was selected for standard methodology of CALS(Computer-aided Acquisition and Logistic Support) process modeling, to the acquisition process of the weapon system to activate DEfense CALS of the acquisition and management business of weapon system on Defense Planning and Management System and developing a AS-IS model which is usable and that the analysis of process problems results in. On this paper, We diagrammed the function of the acquisition and management of weapon system by using IDEF0 and presented AS-IS model. This paper focused on the development of AS-IS model which can put to practical use to find the problems of current acquisition and management process of weapon system and the embodiment of national defense CALS system. So more detailed analysis of current system and additional studies about TO-BE model would be the future research area.

• Proceedings of the Korean Information Science Society Conference
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• 2000.04b
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• pp.619-621
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• 2000

최근 인터넷 기술의 발달로 인한 실시간 인터넷 동영상 서비스 등 인터넷을 이용한 방송사업이 활성화되어지고 이에 부가적으로 애니메이션이 감각적 서비스를 지원하고 있는 실정이나 고가의 모션캡쳐 시스템을 통한 캡쳐된 좌표를 적절한 보정을 한 후에 캐릭터를 움직이는 방법으로 이루어지고 있다. 이러한 모션캡쳐 시스템을 통한다면 시스템 및 장비 자체가 고가이고 또한 실시간으로 처리하기 위하여는 좌표값 보정 등이 필요하지만 본 논문에서 제안하는 좌표 추출 및 추적 기법을 이용하여 저가의 가정용 멀티미디어 오버레이 캡쳐보드와 CCD 카메라를 통하여 영상을 캡쳐하고 캡쳐된 영상좌표와 실험용 GDI object를 링크시켜 실시간으로 사람의 입술의 움직임 모양대로 애니메이션이 립싱크되어서 움직여지는 것을 볼 수 있으며, 더 나아가서 외화의 우리말 더빙시 영상처리를 통한 정교한 화면 더빙 및 가상 캐릭터를 이용한 사이버 미팅가지 가능할 것이다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.05a
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• pp.347-348
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• 2006

Among various gear system, planetary gear system has the best characteristics in high efficiency, excellent strength capacity, easy convertible speed control, and compact design aspect. Strength of gear is considered as the most important design factor. We have studied tooth form and the planetary gear system that have high reduction gear ratio is created by using the involute curve.