• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2015.11a
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• pp.194-194
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• 2015

국내 3,000여개의 표면처리 사업장에서 사용되어지는 표면처리 생산라인에서 정상품을 생산하기 까지 16여개의 다른 공정이 있으며, 이를 작동시키는 SENSOR, MOTOR,HEATER,PUMP등의 수많은 기기들의 연결로 생산품이 생산되어집니다. 이 공정들을 관리 하기 위하여 약품업체, 설비제작업체, 전기전문업체들의 지속적 연결이 생산성의 저하 및 불량을 야기하지 않도록 스마트 공정 제어에 대하여 필요합니다.

• Journal of Industrial Convergence
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• v.7 no.1
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• pp.1-20
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• 2009

The purpose of this study is to examine the relationship between organizational citizeship behavior and justice perceptions. The empirical results have indicated that the justice factors affect on the organizational citizenship behavior. Implications and limitations are discussed.

• Journal of Industrial Convergence
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• v.5 no.1
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• pp.61-85
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• 2007

The purpose of this study is to examine the relationship between justice factors and organization support. The empirical results have indicated that the justice factors affect on the pay satisfaction and organization support have moderate effect on the relationship of justice and pay satisfaction. Implications and limitations are discussed.

• Journal of Industrial Convergence
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• v.4 no.1
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• pp.67-85
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• 2006

The purpose of this study is to examine the effect of union's procedural justice and support on the millitancy. Results indicated that union member's procedural justice and interaction justice perceptions affect on the union support, and the union support has a positive effect on the millitancy Implications and limitations are discussed.

• Journal of the Korea Convergence Society
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• v.11 no.10
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• pp.1-7
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• 2020

The manufacturing process of the resistive variable memory device, which is the based of neuromorphic device, maintained the continuity of vacuum process and applied plasma module suitable for the production of the ReRAM(resistive random access memory) and process technology for the neuromorphic computing, which ensures high integrated and high reliability. The ReRAM device of the oxide thin-film applied to the plasma module was fabricated, and research to improve the properties of the device was conducted through various experiments through changes in materials and process methods. ReRAM device based on TiO₂/TiOx of oxide thin-film using plasma module was completed. Crystallinity measured by XRD rutile, HRS:LRS current value is 2.99 × 10³ ratio or higher, driving voltage was measured using a semiconductor parameter, and it was confirmed that it can be driven at low voltage of 0.3 V or less. It was possible to fabricate a neuromorphic ReRAM device using oxygen gas in a previously developed plasma module, and TiOx thin-films were deposited to confirm performance.

• Journal of Convergence for Information Technology
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• v.9 no.2
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• pp.34-42
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• 2019

In this study, we analyzed the effects of the automatic control system on the reactor operation. The Propyrene Reactor process is complex and typically is inefficient and costly due to the lack of productivity. In this study, a research model was presented with the aim of supplementing obstacles to enhance operational efficiency and increase productivity. The configuration of the existing processes was analyzed to complement the hardware and software systems with original models. The composition of the facility is applied to eight reactor units producing 600,000 ton/year propylene per year. As a result of applying the research model, efficiency of operation was increased, and production volume increased from 90 to 95%, along with 91% Reliability. Future studies will present a research model to improve productivity by 100 percent. In addition, we will study the stability and productivity improvement of PSA (Pressure Swing Adsorption) systems, which are the hydrogen production process of propylene by-products.

• Membrane Journal
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• v.32 no.4
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• pp.209-217
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• 2022

Ion exchange membrane (IEM) is an important class of membrane applied in batteries, fuel cells, chloride-alkali processes, etc to separate various mono and multivalent ions. The membrane process is based on the electrically driven force, green separation method, which is an emerging area in desalination of seawater and water treatment. Electrodialysis (ED) is a technique in which cations and anions move selectively along the IEM. Anion exchange membrane (AEM) is one of the important components of the ED process which is critical to enhancing the process efficiency. The introduction of cross-linking in the IEM improves the ion-selective separation performance due to the reduction of free volume. During the desalination of seawater by reverse osmosis (RO) process, there is a lot of dissolved salt present in the concentrate of RO. So, the ED process consisting of a monovalent cation-selective membrane reduces fouling and improves membrane flux. This review is divided into three sections such as electrodialysis (ED), anion exchange membrane (AEM), and cation exchange membrane (CEM).

• Journal of the Microelectronics and Packaging Society
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• v.29 no.4
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• pp.83-87
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• 2022

Recently, as the thickness of the semiconductor package becomes thinner, warpage has become a major issue. Since the warpage is caused by differences in material properties between package components, it is essential to precisely evaluate the material properties of the EMC(Epoxy molding compound), one of the main components, to predict the warpage accurately. Especially, the cure shrinkage of the EMC is generated during the curing process, and among them, the effective cure shrinkage that occurs after the gelation point is a key factor in warpage. In this study, the gelation point of the EMC was defined from the dissipation factor measured using the dielectric sensor during the curing process similar with actual semiconductor package. In addition, DSC (Differential scanning calorimetry) test and rheometer test were conducted to analyze the dielectrometry measurement. As a result, the dielectrometry was verified to be an effective method for monitoring the curing status of the EMC. Simultaneously, the strain transition of the EMC during the curing process was measured using the FBG (Fiber Bragg grating) sensor. From these results, the effective cure shrinkage of the EMC during the curing process was measured.

• The Magazine of the IEIE
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• v.38 no.3
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• pp.17-21
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• 2011

• 기계와재료
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• v.17 no.3 s.65
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• pp.80-88
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• 2005