• Proceedings of the Korean Operations and Management Science Society Conference
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• 1994.04a
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• pp.187-196
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• 1994

This study deals with roughing planning by cross sectional information generated from sculptured surfaces. Bicubic Bezier surface is adopted as sculptured surfaces in this paper. The system consists of 3 pstyd : 1) modeling sculptured surface, 2) reconstruction of cross-section in 2D coordinates, 3) determination of roughing tool path with structural data. The system is developed by using BIM-PC in the environment of Auto CAD R11, AutoLISP and MetaWare C. The proposed system shows an efficient algorithm for roughing planning with cross sectional information.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2002.05a
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• pp.1066-1070
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• 2002

We propose a neural network based up-trend detector. An auto-associative neural network was trained with 'up-trend' data obtained from the KOSPI 200 future price. It was then used to predict an up-trend Simple investment strategies based on the detector achieved a two year return of $19.8\%$ with no leverage.

• Proceedings of the Safety Management and Science Conference
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• 2004.11a
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• pp.229-235
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• 2004

This paper treats accelerated life tests for automotive connector. The contact resistance of connector is explained by some factors; the use time(calender time, real cycle), stresses and loads adapted in auto test. The relationships between contact resistance and some factors are compared and analyzed by regression models in various test conditions; field use-environment, manufacturer's test environment, and accelerated test condition. The consistency between of manufacturer's test and field test is examined. Finally, the future study on accelerated test for automotive connector is presented.

• Proceedings of the KSME Conference
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• 2000.11a
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• pp.212-218
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• 2000

The importance and role of pre-/in-service inspection(PSI/ISI) for nuclear power plant(NPP) components are intimately related to plant design, safety, reliability, operation, etc. In this paper, for an effective and efficient management of large amounts of PSI/ISI data in NPPs, an intelligent database program(WS-IDPIN) for PSI/ISI data management of NPP was developed. WS-IDPIN program enables the prompt extraction of previously conducted PSI/ISI conditions and results so that the time-consuming data management, painstaking data processing and analysis in the past are avoided. Furthermore, development of ISI UT auto flaw evaluation and acceptance module based on ASME Code Sec. XI were presented. This module can be used for any angle beam examination from flat plate to spherical shapes as selected by the proper azimuthal angle. This program can be further developed as a unique PSI/ISI data management expert system.

• 제어로봇시스템학회:학술대회논문집
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• 2003.10a
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• pp.1710-1713
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• 2003

We developed the synthetic library automation system. Developed system is comprised of two main units: an auto sorting system of books and a wireless management system. An auto sorting system is composed of a book return machine, a robot system, and an emergency bookshelf. A book return machine is operated by magnetic removal-revival. A wireless management system is development of RFID, or radio frequency identification, and is composed of a RF module and uninhabited return machine and a loss prevention system. The software for the synthetic library automation system is divided into three groups. We realized the developed automation system, and then get the features.

• Journal of Korean Society for Quality Management
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• v.36 no.3
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• pp.66-75
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• 2008

Korean insurance companies recently started to understand that the customer satisfaction can be a critical role affecting sales performance and profit. A number of authors have reported and analyzed service quality factors in the auto insurance. The purpose of this research is to examine influence factors for the customer satisfaction in the auto insurance market. This study is assumed that customer satisfaction factors are composed of prices of service and corporate image as well as service quality factors. 249 questionnaires are gathered and analyzed from persons. The main findings of the empirical study are : First, the influence from prices of service and corporate image is higher than that from service quality factors, Second, repurchase of auto insurance highly correlated to recommendation intention.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2004.10a
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• pp.371-376
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• 2004

This study presents a way to generate and manage engineering information by applying steel bridge information model with 3D shape to existing application program. ACIS solid modeling kernel is used to visualize 3D geometric shape of steel bridge on the AutoCAD program. The shape information of 3D solid model can be connected to structural design information of steel bridge by an application module based on information model. The application module for manipulating steel bridge information can be easily developed by ObjectARX programming library supporting functional expansion of AutoCAD program. End-users can use the application module without any additional environmental setup on the AutoCAD. Thus this study facilitates information management of steel bridge by using ACIS solid modeler and ISO/STEP methodology.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1992.04b
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• pp.348-357
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• 1992

인간-기계시스템(Man-Machine System)의 구조가 점점 복잡해짐에 따라 제품의 설계단계에서 인간과 시스템간의 상호작용(interaction)을 고려하기 위하여 인간-기계 인터페이스모형(Man-Machine Interface Model)의 개발 필요성이 대두되고 있다. 본 연구에서는 인체모형과 관련된 인체변수들을 추출하여 Database화한 후, AutoCAD를 이용하여 컴퓨터로 구현하였다. 인체모형의 구축에서는 Robotics에서 사용하는 Denavit-Hartenberg Notation과 같은 체계적인 좌표계를 이용하여 기존의 인체모형 연구결과들을 쉽게 적용할 수 있도록 하였다. 한편, 본 인체모형은 범용 CAD Package인 AutoCAD를 이용하여 구현함으로써 SAMME등에서 볼 수 있는 인간공학적 평가를 PC수준에서 가능하도록 하였다. 본 시스템을 이용함으로써 제품의 설계단계에서부터 인간공학적 요소들을 고려할 수 있을 뿐만아니라 기존 제품의 평가에도 유용하게 사용할 수 있으리라 기대된다. 한국인을 대상으로 한 인체모형의 개발이라는 점에서 의의가 있다고 할 수 있다.

• Proceedings of the Safety Management and Science Conference
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• 2007.11a
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• pp.163-180
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• 2007

The purpose of this paper is to develop an efficient production strategy with changing factors to influence the productivity. The factors would be the number of Multi-Function worker, the method of job dispatching, and lot size. A simulation model has been developed for this study. We used AutoMod simulation and the process activity was animated to follow the flow of process easily. The alternatives have been tested through the simulation model, and the various alternatives is proposed for the efficient production strategy. We hope that the system is applied to similar types of small and medium-sized enterprises to develop an efficient production strategy and to achieve the satisfactory result.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.4
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• pp.159-165
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• 2012

The accurate focusing position should be determined for accurate measurements In VMS. Camera lens focusing is an important problem in computer vision and video measuring systems (VMS) that use CCD cameras and high precision XYZ stages. Camera focusing is a very important step in high precision measurement systems that use computer vision technique. The auto focusing process consists of two steps, the focus value measurement step and the exact focusing position determination step. It is suitable for eliminating high frequency noises with lower processing time and without blurring. An automatic focusing technique is applied to measure a crater with a one-dimensional search algorithm for finding the best focus. Throughout this paper, the suggested algorithm for the Auto focusing was combined with the learning. As a result, it is expected that such a combination would be expanded into the system of recognizing voices in a noisy environment.