• Journal of Technology Innovation
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• v.26 no.2
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• pp.37-68
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• 2018

This study examines the effects of entrepreneurial orientation and external oriented organizational culture on the firm perfornamance focusing on mediating effects of open innovation. The survey was conducted on Korean manufacturing firms with 100-5,000 employees among listed companies and external auditing companies. The validity of the research model and hypotheses was verified through analysis of structural equation model for 283 valid responses. Empirical results show that entrepreneurial orientation positively affects both open innovation and firm's performance. The external oriented organizational culture of firms appears to be positive effects on open innovation, but the effect between the external oriented organizational culture and firm's performance shows no statistical significance. Open innovation have positive effects on firm performance. In addition, a test for mediation effects of open innovation reveals that a full mediation exists between the external oriented organizational culture and firm's performance, while there is a partial mediation effect between entrepreneurial orientation and firm's performance. This study contribute to the literature by deepening understanding on the open innovation. We propose an integrated model for examining antecedent factors, open innovation and performance.

• Journal of Dental Rehabilitation and Applied Science
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• v.39 no.1
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• pp.9-20
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• 2023

Purpose: We investigated the effect of open tray impression using pick-up impression coping and close tray impression using transfer impression coping on the accuracy of impression in edentulous patients on their mandibular parts. the effect of material types of pick-up type impression copings for splinting in open tray impression on the accuracy of impression was also evaluated. Materials and Methods: Two implant fixtures were implanted in parallel in the left molar of the mandibular in the shape of a mandibular partial edentulous model. The 40 individual trays were fabricated using 3D printer. The prepared individual trays were classified into 4 groups (i.e., PN, PG, PH, and TN groups), and a total of 40 impression-takings were conducted. A master cast was connected to a Scan Body. The converted STL file was super-imposed on the scan images of the various groups. Results: The order of standard deviation values decreased as follows: PN (0.2343 ± 0.0844 mm), TN (0.2192 ± 0.0840 mm), indicating that the high accuracy of impression for TN group. In addition, for the comparison results between the material types used in splinting the open tray impression, the PH group showed a relatively lower standard deviation (0.1910 ± 0.1176 mm) than that of the PN group (0.2343 ± 0.0844 mm), PG group (0.2556 ± 0.1082 mm). Conclusion: The acrylic resin synthesized by light-induced polymerization exhibited a higher accuracy of impression taking than that of autopolymerizing acrylic resin. Meanwhile, the accuracy of impression taking was not dependent on the implant impression taking method or the presence of connection/fixation of impression copings.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.87-88
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• 2013

• The Korea Swine Journal
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• v.13 no.5 s.141
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• pp.38-39
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• 1991

정부는 국제경쟁력 향상에 불리한 제도를 과감하게 개선하고 필요한 부분의 파격적인 지원과 더불어 생산자들의 각별한 각오가 있다면,양돈산업은 꿋꿋이 살아남을 것이며 찬란한 꽃을 피울것이다

• Agrochemical news magazine
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• v.25 no.1 s.194
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• pp.22-26
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• 2004

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2005.10a
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• pp.413-420
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• 2005

• 정보화사회
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• s.96
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• pp.37-38
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• 1995

우리협회는 10월 23일 WTO기본통신협상대책 공청회를 가졌다. 오는 12월 양허목록제출을 앞두고 의견수렴을 위해 마련됐다. 통신개발연구원의 최병일 박사의 주제발표문중 주요 부분을 게재한다.

• Korean Security Journal
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• no.41
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• pp.213-240
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• 2014

How will South Korea design well-organized, open, and integrated counterterrorism system? Does this system work well in the emergent situation? These are very significant issues. It is likely that this system would give the solution. A legal basis needs to be established to have a well-organized, open, and integrated counterterrorism system. The core part of a well-organized, open, and integrated counterterrorism system is to minimize and eliminate damage caused by terror through preventiveness, preparation, action, and restoration. For having this system, they need to be divided into two section: an open one and an integration one. In this study, there will be a discussion on a new and appropriate counterterrorism system fit in South Korea a subordinate system: legal, organized, civil aspects need to be provided on the basis of an well-organized, open, and integrated counterterrorism system and an analysis on the current system of the States, England and the following implications.

• Fire Science and Engineering
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• v.20 no.2 s.62
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• pp.72-79
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• 2006

The objective of this study is to analyze the smoke extraction efficiency using by the partial extraction system with CFD simulation for case of tunnel fire. The Comparison of CFD results with the preceding scaled model test results, it is equal to the smoke extraction efficiency and smoke stratification in tunnel by the partial smoke extraction system (distributed damper). It shows that the smoke extraction efficiency is increased about 7% by the distributed damper which is opened near fire, compare with the distributed damper which is all opened. The case of the fire occurs on a traffic jam in a tunnel, it is proposed that the operating method of partial smoke extraction system for the escaping passengers.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.01a
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• pp.175-176
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• 2016

본 논문에서는 개방형 교육시스템 학습모형을 적용한 디자인 패턴 교육을 위한 개방형 교육 시스템을 통한 학습을 제안한다. 소프트웨어 디자인 패턴은 정형화된 답이 없으며 상황에 따라 유동적으로 사용되지만, 기존의 디자인 패턴 온라인 교육 시스템은 일방적으로 이루어져 있고 시중에 판매되는 책을 통해 디자인 패턴을 이해하기에는 어려운 부분이 많이 존재한다. 따라서 이러한 문제를 해결하고자 디자인 패턴 교육을 위한 개방형 교육 시스템을 제안한다. 디자인 패턴의 개념과 사례를 통해 기본적인 지식을 습득하고 디자인 패턴의 퀴즈와 실습을 해 이해도를 높인다. 또한, 일방적인 학습이 아닌 사용자들 간의 토론을 통해 한 방향에서 디자인 패턴을 보는 것이 아닌 다양한 시점에서 볼 수 있어 창의력도 함께 증진할 수 있다.