In the event of an emergency such as facility shutdown during process operation, the by-product gas must be urgently discharged to the vent stack to prevent leakage, fire, and explosion. At this time, the explosion drop value of the released by-product gas is calculated using ISO 10156 formula, which is 27.7 vol%. Therefore, it does not correspond to flammable gas because it is less than 13% of the explosion drop value, which is the standard for flammable gas defined by the Occupational Safety and Health Act, and since the explosion drop value is high, it can be seen that the risk of fire explosion is low even if it is discharged urgently with the vent stock. As a result of calculating the range of explosion hazard sites for hydrogen gas discharged to the Bent Stack according to KS C IEC 60079-10-1, 23 meters were calculated. Since hydrogen is lighter than air, electromechanical devices should not be installed within 23 meters of the upper portion of the Bent Stack, and if it is not possible, an explosion-proof electromechanical device suitable for type 1 of dangerous place should be installed. In addition, the height of the stack should be at least 5 meters so that the diffusion of by-product gas is facilitated in case of emergency discharge, and it should be installed so that there are no obstacles around it.

In the epoxy resin manufacturing process, carcinogenic ECH (epichlorohydrin), IPA (isopropanol) and Biphenol-A materials has been generally used. After the reaction, byproducts containing ECH/IPA/Water is remained along with final product. But, in the recovery process, ECH and IPA forming an azeotropic mixture with water containing feed solution at any temperature condition, the recovery of high purity ECH is difficult only by distillation. Therefore, pervaporation process could be suitable countermeasure due to its mild operation condition for separation of azeotropic mixtures at the point of energy and cost saving. In this study, Alumina-PVA composite membrane was prepared for pervaporation dehydration of ECH/IPA/Water feed mixtures and pervaporation performance and stability of the prepared composite membrane was identified.

제조물책임법은 제품의 제조, 설계, 표시상의 결함으로 인해 사용자의 생명이나 신체에 피해나 손실이 발생할 경우 제조물의 결함과 그로 인한 피해 사실이 입증되면 제조업자 등이 손해배상책임을 지게 하는 제도이다. 제조물책임법의 시행으로 기업은 제품의 안전성 확보와 만약에 발생할 수 있는 제품 사고를 대응하는 활동을 체계적으로 수립하는 노력이 필요하다. 그렇지만 실제로 기업이 제조물 책임 대응활동을 얼마나 체계적으로 예방하고 대응할 수 있는가를 확인할 수 있는 제도는 아직 미흡한 상태이다. 따라서 본 연구에서는 제조기업의 제조물책임 대응수준 평가제도 도입에 대한 소비자의 인식과 제도의 필요성을 조사하여 객관적이고 체계적인 평가제도로 도입할 수 있도록 연구결과를 기초자료로 제공하는데 목적이 있다.

제품유형과 가격, 브랜드 이미지 등의 상호작용이 소비자의 구매의도와 품질지각에 미치는 효과에 대해서는 다양한 현상을 관찰해 왔다. 그러나 제품유형과 제조방식의 상호작용이 이 요인들에 미치는 효과에 대해서는 연구가 드물었다. 그러나 3D프린터의 등장은 기계를 통한 자동화 생산과 수공예로 대표되던 제조방식에 3D프린팅이라는 새로운 방식을 추가하였고, 이러한 새로운 틀이 소비자의 구매의도와 품질지각에 영향을 미칠 가능성이 있기에 연구가 필요하다. 따라서 본 연구는 제품유형과 제조방식의 상호작용이 구매의도와 품질지각에 미치는 효과를 검증하기 위하여 이루어졌 다. 이를 위한 실험 1은 성격이 다른 제품유형(드론 vs. 바이올린 vs. 컵)을 선정하였고, 제품유형별로 선호하는 제조방식 이 다르게 나타나는지 측정하였다. 결과적으로 소비자들은 드론과 같은 최신제품은 3D프린팅 제작을, 바이올린은 수공예 제작을, 컵은 대량생산이 용이한 기계 제작을 선호하는 것으로 나타났다. 실험 2는 제품유형에 따른 제작방식 선호의 차이가 구매의도와 품질지각에 미치는 영향에 대한 검증을 시도하였다. 즉 드론은 3D프린팅 제조일 때 구매의도 가 가장 높았고, 바이올린은 수공예일 때 구매의도가 가장 높았으며, 컵은 기계 제작일 때 구매의도가 가장 높았다. 또한 드론은 제작방식 간 품질지각에 차이가 없었던 반면, 바이올린은 수공예의 품질을 가장 우수하다고 지각했고, 컵은 3D프린팅에서 품질을 가장 낮게 지각했다(컵은 3D프린팅 제작일 때 구매의도도 가장 낮았다). 본 연구가 소비자 심리학, 마케팅, 광고 등의 분야에 폭넓은 시사점을 줄 것으로 기대한다.

Patent management activities are considered to play a key role for technology-based firms under the recent knowledge-based economies. This is because intellectual property, including patents, can act as a system for continuous profit generation by protecting firms’ products, processes and services. In Korea, healthcare industry is now regarded as one of the promising next generation industries. Despite the promise of healthcare industry, Korean healthcare product manufacturers are faced with turbulent business changes, such as market opening. Even though there are various industrial studies on the effect of patent management activities on firm outcome, previous studies have hardly paid attention to Korean healthcare product manufacturing firms. For this reason, this study identifies the effect of patent management activities, such as patenting activeness, technical excellence and cooperation degree, on firm outcomes, including financial profitability and firm growth, with respect to the Korean healthcare product manufacturers. In this study, we located 86 Korean healthcare manufacturing firms from KORCHAMBIZ and DART, and then collected the data of their patenting activities and outcomes between 2001 and 2013. By applying factor analysis and regression analysis, our empirical study found that firms’ patenting activeness has the significant positive relationship on firms’ financial profitability, and firms’ patenting activeness and technical excellence have the significant positive relationship on firms’ financial growth. Our study is an initial attempt to identify the effect of patent management activities on firm outcome within Korean healthcare product manufacturing industry, and thus its results can be used as the basis to formulate national policies for Korean healthcare product industry.

에폭시 수지는 기계적 물성, 내약품성, 치수 안정성 등이 우수하기 때문에 고기능 소재로서 수요가 증가하고 있다. 이에 따라 에폭시 수지 제조공정에서 발생하는 부산물의 양도 증가하여 부산물 내의 원료 물질 회수에 대한 관심이 높아지고 있다. 본 연구에서는 원료물질을 회수하는 증류/분리막 복합 공정에 적용할 수 있는 탈수용 복합막을 연구하였다. 실리카-지르코니아 졸에 α-알루미나를 분산시킨 코팅용액과 실리카 졸을 이용하여 Dip-coating법으로 실리카 복합막을 제조하였다. 에폭시 공정 부산물인 Epichlorohydrin/IPA/H2O을 이용하여 투과증발 실험한 결과 복합막은 총투과도 0.1∼0.7 kg/m²⋅h, 물의 선택도 50∼110를 나타내었다.

The present study is aimed at examining in multilateral ways the structural relationship among technological orientation, market orientation and product development performance of manufacturing companies, which are deemed to be key factors for them to increase absorptive capacities. From the study, it was revealed that: First, in terms of the relationship between market orientation and absorptive capacities, it was made clear by the analysis that the market orientation sought after by manufacturing companies has influence upon their absorptive capacities. Second, with regard to the relationship between technological orientation and absorptive capacities of manufacturing companies, the analysis found that the technological orientation pursued by them affects their absorptive capacities. Third, as for the relationship between absorptive capacities and product development performance, the analysis made it clear that the absorptive capacities of manufacturing companies exerts influence upon their product development performance. Fourth, in respect to the relationship between market orientation and product development performance, it was concluded from the analysis that market orientation produces effect upon product development performances like technological innovation and acquisition of new technologies needed for product development. Finally, regarding the relationship between technological orientation and product development performance of manufacturing companies, it became obvious from the analysis that the technological orientation affects the product development performance.

The objective of the present study is to analyze the relationship of suppliers and customer participation in product development process and effects of such participation on product innovation since it is getting more and more weight in manufacturing companies. It is also aimed in this study to explore if business performance of manufacturing companies might be affected by the suppliers participation as well as product innovation that is realizable by such participation. From the analysis, following conclusions could be drawn: First, suppliers participation in manufacturing companies turned out to have influence upon product innovation (standardized coefficient=0.193, C.R=3.510), implying that nothing is more important than the role of suppliers who have intention to realize innovation through participation in manufacturing companies. Second, the analysis showed that customer participation exercised impact upon product innovation of manufacturing companies (standardized coefficient=0.686, C.R=6.433), suggesting that the more customer participate in product development process of manufacturing companies, the more manufacturing companies could sharpen their competitiveness. Third, it was made known from the analysis that the product innovation thanks to suppliers and customer participation in manufacturing companies could have influence upon their business performance (standardized coefficient=0.762, C.R=7.666), signifying that the product innovation of manufacturing companies might depend on the participation of suppliers and manufacturers and, in turn, could affect their own business performance.

Quality design methodologies have received constituent attention from a number of researchers and practitioners for more than twenty years. Specially, the quality design for drug products must be carefully considered because of the hazards involved in the

In manufacturing companies, engineering information is a central data which defines a product to be produced. This is changed by various factors such as changes of product configuration, changes of drawings information of a technology's licensor, etc, and

  Nowadays, customer-oriented manufacturing enterprises such as airplane, ship, ship engine, etc are knowledge-intensive and higher added value industries. In these companies, to quickly respond customer’s order, a quotation management is a very important

This study was conducted to develop radish as a food product for home meal replacement using superheated steam (SHS). Also, the change of quality characteristics was studied during their storage. The radish cuts were treated with SHS for 0, 3, 5, and 7 min, respectively, followed by complete drying at 80℃ for 6 hours. The results showed that radishes restored with mixed solution (drinking water:sugar:vinegar:salt=2:1:0.8:0.1) were harder than those restored with drinking water. All radishes were stored at 5, 10 and 15℃ for 56 days to investigate the changes of quality characteristics during the storage. Radishes in the control group, restored with drinking water and stored at 15℃, were spoiled after 7 days of storage. The radish in the experimental group did not show any change in the water content; except an increase on the first day of storage. The hardness of radish decreased with an increase in the storage period. It was found that microbial growth was inhibited due to low pH of the mixed solution, in which radishes of the experimental group were immerse.