• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2004년도 추계학술대회 논문집
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• pp.64-68
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• 2004

Design of manufacturing system is a very complicated and tricky process. Since no efficient method has been known, yet it has been mainly done based on experience and heuristics. Even mostly used simulation approaches can only evaluate the performance of an already configured system, but cannot provide a help to configure or reconfigure a manufacturing system. An efficient way to (re-)configure manufacturing systems might be to use building blocks of a manufacturing system in the similar manner the recent products are configured based on modular principle. In this paper, the concept of a building block and its representation method are described. An example of assembly system configuration is also given.

• International Journal of Advanced Culture Technology
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• 제1권1호
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• pp.19-22
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• 2013

The basic principle of the product manufacturing technology using the 3D printing technique materializes the material including the high molecular substance or plastic and metallic dust, and etc. the product into the laminate additive manufacturing according to the design diagram gradually. It is applied to the various industrial field including the field of food division, field of home appliances, field of medicine, field of mechanical department and construction, etc.. The global development case of 3D printing technique is the next. This study described global technology and market trends. Afterward, 3D printing technique manages the important role when it exceeds the product manufacturing view just and is grafted with the various technology including the biotechnology, nanotechnology, and etc. and it improves the quality of the human life.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 춘계학술대회 논문집
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• pp.637-638
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• 2006

V-belt pulleys play a key role in driving cooling pump, oil pump, air-conditioner and so on by using an engine power. Precision deep drawing is one of the main processes for manufacturing the pulleys. Operation variables of the deep drawing equipment, called the setup parameter, must be re-determined whenever the specifications of pulley to be produced are changed. The defect rates during a setup of equipment and the working hours needed for the setup are almost dependent on workers' know-how. This study designs the program for easily determining setup conditions in pulley manufacturing process.

• 에너지공학
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• 제26권3호
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• pp.11-29
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• 2017

인공지능 특히 심층신경망기계학습기법(딥러닝)의 제조업분야에서의 이용이 효율적이며 실용적일 수 있다는 인식이 넓게 수용되고 있다 이 보고서는 최근의 신경망기계학습 개발환경을 개관하고 제조업분야에서 활용되고 있는 딥 러닝기술을 개관한다.

• 대한산업공학회지
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• 제22권4호
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• pp.589-605
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• 1996

Recycling of used products and components has been considered as one of promising strategies for resolving environmental problems. In this respect, most manufacturing companies begin to consider possible recycling (e.q., reuse or re-production) of the components contained in their products. The primary objective of this research is to develop a multiple criteria decision making model for systematic management of recycle-oriented manufacturing components. The production planning problem of recycle-oriented manufacturing components is first formulated as a multiobjective mixed 0-1 integer programming model with three conflicting objectives. An interactive multiple criteria decision making method is then developed for solving the mathematical model. Also, an Input/Output analysis software is developed to help practitioners apply the model to real problems without much knowledge on computers and mathematical programming. A numerical example is used in examining the validity of the proposed model and to investigate the impact of the input variables on recycling production strategy.

• 한국융합학회논문지
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• 제11권10호
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• pp.1-7
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• 2020

뉴로모픽 소자 초기 단계인 저항 변화형 메모리 소자의 제작 공정으로, 진공 공정의 연속성을 유지하였고, 고집적, 고신뢰성을 보장하는 뉴로모픽 컴퓨팅을 위한 저항 변화 메모리 소자 제작 및 공정 기술에 적합한 플라즈마 모듈을 적용하였다. 플라즈마 모듈을 적용한 저항메모리(ReRAM) 소자의 제작과 연구는 ReRAM 소자 기반의 TiO₂/TiOx 산화물박막의 제작방법과 소재의 변화를 통한 다양한 실험을 통하여 완성되었다. XRD를 이용하여 rutile결정을 측정하였고, 반도체 파라미터 측정기로 저항 메모리의 HRS : LRS 비율이 2.99 × 10³ 이상이고, 구동 전압 측정이 0.3 V이하에서 구동이 가능한 저항 변화형 메모리 소자의 제작을 확인 하였다. 산소 플라즈마 모듈을 적용한 뉴로모픽 저항메모리 제작과 TiOx 박막을 증착하여 성능을 확인하였다.

• International Journal of Quality Innovation
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• 제6권2호
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• pp.59-89
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• 2005

Manufacturing Resources Planning (MRPII) is one kind of manufacturing information system that can help manufacturing companies gain competitive advantages. It is estimated that more than one hundred MRPII systems are available in the market, many of them are mature enough to solve most operational issues in accordance with users' requirements. More often than not, many of these systems provide more functions than a company expects. Manufacturing companies worldwide have attempted to implement these MRPII systems, however, many companies experienced failure (Turbide, 1996) due to managerial rather than technical issues. The authors propose an approach utilising a roadmap to integrate BPR and the MRPII implementation in order to overcome this difficulty. A detail road map is developed to guide this implementation, which is designed using a hierarchical analysis technique known as Integrated DEFinition Method (IDEF). IDEF is a systematic manufacturing management and integration-modeling tool. The proposed approach is implemented and illustrated using a reference company and the results indicated that 66% reduction in errors for maintaining the bills of materials system; 99% reduction in time to carry out material requirement planning; and 70% reduction in time previously taken for non-productive discussions.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2009년도 춘계학술대회 논문집
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• pp.885-886
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• 2009

• 한국수산과학회지
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• 제56권3호
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• pp.347-351
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• 2023

Flying fish Cypselurus agoo roe is a popular food ingredient due to its abundant nutrition, unique texture, and flavor. It contains high levels of polyunsaturated fatty acids, protein, and minerals such as calcium, phosphorus, potassium, and vitamins (A, B₁, B₂, B₆, and niacin), making it a highly utilized food ingredient. Additionally, it is widely used as a raw material for food and cooking in several countries. After harvesting, flying fish roe is dried and transported to processing plants, where it performed a re-moisturizing process. However, the conventional re-moisturizing process is time-consuming and results in some loss of quality. Thus, this study investigates the conditions required for the re-moisturization of flying fish roe including the composition of the immersion solution, immersion time, and conditions that could minimize damage to the roe. The results suggest a reasonable composition of immersion solution to minimize damage to flying fish roe and the most appropriate immersion time for re-moisturization. These results may provide valuable insights for the industry to enhance the quality of re-moisturized flying fish roe, leading to an increase in its market value and demand.

• Journal of the Korean Wood Science and Technology
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• 제48권2호
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• pp.154-165
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• 2020

To assign the functionality of the regenerated fiber from waste MDF(wMDF) made of pitch pine, we examined the dyeing characteristics of natural dyes, sappan wood as a polychromatic natural red series, monochromatic gardenia as a yellow series, and indigo blue series. For nonemordanting dye, the colors of regenerated fiber dyed by sappan wood and gardenia were reddish yellow (YR) and yellow (Y) series, respectively, and dyeing conditions were appropriate a 30 ~ 50 g/L of dyeing materials at 60 ℃ for 60minutes of dyeing time. We obtained regenerated woody dyed fibers (Re-WDF), YR to the red (R) series by premordanting with Al and Cu mordant for sappan wood and the purplish red (RP) series by Fe premordanting. In the case of gardenia, only Y series colors were developed in nonemordanting dye or all three mordants. Indigo dye produced Re-WDF with greenish yellow (GY) tone at 1%, green (G) tone at 3%, and blue (B) tone at 5% concentration or more. Re-WDF with indigo showed the best light fastness followed by sappan wood and gardenia. In particular, the light fastness of Re-WDF with gardenia was very poor. The light fastness was somewhat improved by premordanting(Fe>Cu>Al) both sappan wood and gardenia dyes.