• 디지털산업정보학회논문지
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• 제8권4호
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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.

• 대한안전경영과학회지
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• 제16권2호
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• pp.131-138
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• 2014

Auto part industry supplies production for auto manufacturer and after market. These company have inventory for delivery. High inventory level can be good for delivery, but cost will be increase. Low inventory level can be customer unsatisfaction for delivery late. Low inventory level also is reason of low productivity by decreasing product batch size. These article suggest model for calculation a proper inventory level and prove a effect by simulation of some company.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 추계학술대회 논문집
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• pp.133-136
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• 1997

This paper explores the optimal design methodology for auto lever using a genetic algorithm. Component of auto lever has been designed sequentially in the industry, but this study presents the novel design method to consider the design parameters of components simultaneously. The genetic algorithm approach is described to determine a set of design parameters for auto lever. The authors have attempted to model the design problem with the objective of minimizing the angle variation of detent spring subject to constraints such as modulus of elasticity of steel, geometry of shift pipe, and stiffness of spring. This method can give the better alternative.

• 대한기계학회논문집A
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• 제27권2호
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• pp.285-293
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• 2003

This paper explores an optimal design methodology for an auto lever using a genetic algorithm. Components of the auto lever have been designed sequentially in the industry, but this study presents a novel design method to determine the design parameters of components simultaneously. The genetic algorithm approach is described to decide a set of design parameters for auto lever. The authors have attempted to model the design problem with the objective of minimizing the angle variation of detent spring subject to constraints such as modulus of elasticity of steel, geometry of shift pipe, and stiffness of spring. This method gives the promising design alternative.

• 한국산업융합학회 논문집
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• 제16권2호
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• pp.41-46
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• 2013

On the purpose of helping the inhabitants living in farming, fishing villages, and islands for more safe and hygienic water from simple waterworks, experimental investigations were performed concerning the development of a water purifier with silver nanomaterial packed, having a function of the auto-disinfection. The results show as follows through such filteration and auto-disinfection processes. It is possible to get hygienic and safe water, for example, more than 95% of general bacteria, total coliforms, and fecal coliforms were removed. It is also possible to get good-quality water, for 49.4% of spent potassium permanganate and 85% and 63% of turbidity and conductivity were removed respectively. It is a very effective equipment, for 100% cost reduction of used chemicals was achieved by no-chemical disinfection process and THM was not generated.

• 한국산학기술학회논문지
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• 제13권8호
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• pp.3319-3325
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• 2012

본 논문은 반도체 포토장비의 이산 이벤트 시뮬레이터인 TrackSim의 개발에 관한 것이다. TrackSim은 포토 장비의 시뮬레이션 엔진과 사용하기 쉬운 사용자 환경을 포함하는 시뮬레이터로, 다양한 프로세스 모듈의 구성 및 운영 방법을 효율적으로 평가, 검증, 스케쥴링할 수 있는 3차원 시뮬레이션 환경을 제공한다. TrackSim은 반도체 산업에서 많이 사용되는 이산 사건 시뮬레이션 소프트웨어인 AutoMod를 기반으로 개발되어 시뮬레이션 신뢰성이 보장되며, AutoMod로 개발된 반도체 제조라인 시뮬레이션 모델 속에 함께 연동하여 사용이 가능하다는 특징이 있다.

• Journal of Korea Trade
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• 제23권2호
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• pp.14-33
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• 2019

Purpose - This paper aims to articulate determinants of inter-organizational cooperation based on to the extent to which inter-organizational tasks are related to product development and production processes. Design/Methodology - This research conducted OLS regression analysis based on the data acquired from questionnaire survey in Korean auto industry. Findings - Our analysis has verified that complementary and compatible resources, as well as physical and human asset specificities, positively affect inter-organizational product development cooperation. Conversely, in the production process, only complementary resources positively affect inter-organizational cooperation, whereas compatible resources and physical asset specificity have a negative influence. The changing characteristics of compatible resources (with IT innovations and AI), and physical asset specificity (influenced by a rising need to reduce production costs), cause inter-organizational cooperation in production to decrease. Originality/value - This research attempts to expound upon these determining factors of inter-organizational cooperation by considering both complementary-compatible resources and asset specificity in product development and production simultaneously. The reason why the impact of complementary-compatible resources and asset specificity on inter-organizational cooperation is critical in understanding the determinants of inter-organizational cooperation is that the attributes of complementary-compatible resources and asset specificity in production have changed drastically due to the continuing diffusion of IT innovations and AI (Artificial Intelligence).

• 대한지리학회지
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• 제51권2호
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• pp.235-253
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• 2016

중국은 2004년부터 자동차 공업 관련 신산업 정책을 추진하기 시작하였다. 이와 함께 기존의 맹목적인 외자유치에서 높은 기술수준을 지닌 외자기업을 유치하는 방향으로 선회하였다. 이러한 정책적 환경 변화는 수많은 다국적 기업들 및 협력기업들의 중국 진출을 본격화시켰으며, 한국의 완성차 및 부품기업 또한 진출이 이루어졌다. 외자기업의 착근과정에서 나타난 제도적 변화에 의한 혁신적인 기술 적용 필요성은 기업의 기술 혁신 필요성과 조응하였는데, 효율적 공간 전략이 요구되었다. 첫째, 제도적 변화에 따른 로컬 파트너십 활용과 부품기업 동반진출 전략, 둘째, 기술혁신을 통한 모듈화 및 공용 플랫폼 전략, 셋째, 지방정부 인센티브 정책 활용 전략이 그것이다. 특히 생산 네트워크 내 행위자들은 직서열 공급방식을 통한 부품 공급망을 따라 전후방 연계의 흐름이 나타났으며 관계성이 강화되었다. 따라서 부품기업들은 원활한 협력 체제를 위해 전방기업 및 모듈 단위 중심으로 집적하였다. 그 결과 북쪽의 베이징 현대를 중심으로 하는 북쪽 지역, 남쪽의 동풍열달기아를 중심으로 하는 남쪽 지역, 공용 부품을 공급하기 위한 칭다오를 중심으로 하는 중부 지역, 일반 공용 부품 및 원자재를 공급하는 상하이를 중심으로 하는 기타 지역으로 생산 공간의 분화가 나타났다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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• pp.32-35
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• 1997

A recent development in the Flat Panel Display(FPD) industry requires an auto-alignment system which is operated in high speed and high precision. In the FPD production process, aligning photo-mask with respect to guide mark printed in the glass should be accomplished in the accuracy of sub-micron order. So the system has high bandwidth and needs a dedicated control system which is fast and robust enough to control linear motors in precise manner. Proposed auto-alignment system structure in this presentation which consists of the master controller board, the DSP position controller board which controls 3 axis precision linear motors, the servo system and the man machine interface software. Designed and tuned under repeated experiments, the proposed system showed a reasonable performance in the aspect of rise time and steady state error.

• 품질경영학회지
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• 제18권1호
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• pp.96-115
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• 1990

This study suggest a plan for a small and medium auto parts enterprises in Ulsan Industrial Complex to do cooperation activity for management rationalization. To derive the plan, it is considered that characteristics of auto parts industry, existing status of cooperation activity, and faced problems of the small and medium enterprises in Ulsan area. Suggested plan may be well used for basic information of auto parts company's cooperation, and may contribute to expand cooperation activity.