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조영상,최호석 한국화학공학회 1990 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.28 No.3
분리탑에 대한 정상상태에서의 차수감소모델(reduced order model)을 개발하였다. 차수감소모델의 정확도를 확인하기 위해서 차수감소모델의 결과를 정밀모사결과(rigorous tray-by-tray model)와 비교해 보았으며, 그 결과 차수감소모델의 정확도를 확인할 수 있었고, 또한 상당한 계산시간의 감소를 확인할 수 있었다. Reduced order steady state models for separation columns are developed. The accuracy and efficiency of the reduced order models are also demonstrated by comparing the simulation results obtained by using the reduced order models with rigorous tray by tray calculations.
Features of Written Feedback Received in a Social Networking Site for Language Learning
조영상 중앙대학교 외국학연구소 2015 외국학연구 Vol.- No.34
The purpose of this article is to examine the types of written feedback L2 learners receive at a language-learning social networking site (SNS) called Lang-8, where people learn each other’s languages through writing and feedback activities. The analysis of 50 writing entries involving 145 reviews by 85 feedback providers revealed the unique characteristics of written feedback in the Lang-8 environment, including both corrective responses to writing errors and message- related comments, the supportive nature of communicative feedback, a short wait-time, more focus on L2 development than composition skills, explicit error indication and correction, a low frequency of meta-linguistic explanation, and the involvement of multiple native L2 speakers. Based on these findings, suggestions are offered to help L2 writing teachers to make an informed decision when they consider integrating language-learning SNSs into their L2 writing classes.
R&D 조직에서 핵심역량 심화를 위한우수인력의 집단적 유치 방안에 관한 연구
조영상,이용길 한국혁신학회 2013 한국혁신학회지 Vol.8 No.2
WCU(World Class University) project for globalization of Korean universities has been launched. WCI(World Class Institute) project for globalization and strengthening of Korean public research institutes is being prepared. The focus of the WCU and WCI program is mainly aiming at recruiting and retaining outstanding foreign/external scientists and engineers in Korean universities and research institutes to enhance worldwide competitiveness. Diversification and openness are main factors to produce breakthrough and cutting-edge innovation. Korean innovation systems should be changed in absorption of diversification and openness. This paper also suggests the policy model of group recruiting of foreign/external outstanding researchers in Korea. Particularly, based on concept of center of excellence, HR policy of group recruiting will be provided. The author concludes the paper with accentuation that growing domestic young researchers is also important. And we should seek the strategic balance between recruiting outstanding foreign researchers and growing young domestic researchers. 대학의 세계화와 경쟁력 강화 차원에서 WCU (World Class University) 사업이 추진되었고, 정부출연 연구기관의 세계화와 연구역량 강화를 위하여 WCI (World Class Institute) 사업이 추진된 바 있다. 요지는 구미권의 우수한 외국인 또는 한국인 학자를대거 유치하여, 국내 연구집단의 역량을 제고함과 함께 더 개방화되고 다양화된 연구시스템과 문화를 구축하자는 것이다. 본 논문은 특히 출연 연구기관의 세계화와 소속 연구센터의 역량 강화를 위한 우수연구자들에 대한 그룹 유치라는 정책적 제안을 하고자 한다. 먼저 우수 연구집단 육성의주요 요인을 살펴보고, 연구기관 인재 유치 및 보유의 주요 착안점을 탐색해 본다. 그리고 구체적인 제안으로서 출연 연구기관에 외부 우수인력들에 대한 집단적 유치를 위한정책을 제안하고자 한다. 결론에서는 외국의 우수인력들에 대한 효과적인 유치 전략및 정책과 함께 국내 우수 연구자의 육성 방안을 균형있게 추진해야 함을 강조한다.
조영상,이정동,박찬수,김태유 한국생산성학회 2002 生産性論集 Vol.16 No.3
The Korean ICT industry is evolving at a dramatic speed, increasing its importance in the overall economy and producing numerous externalities on the other industries. The purpose of this srsearch is to investigate the productivity growth of Korean ICT industry and its effects on the other industries and to derive policy implications. For this purpose we perform inter-industry analysis. Inter-industry analysis is conducted to investigate how close co-relationship exist between ICT industry and other indrstries and to see how much ICT industry affects other industries. Our estimates of the productivity growth in the industry and its contribution to the overall korean Economy suggest the direct contribution of the ICT industry is significant, but its spillovers to the other industries are not so impressive. This implies that the link between ICT industry and other industries is weak and that most of the ICT products are used as final products and not as intermediate goods. We also find the high extent of import penetration in Korean ICT industry to be one of its major problems.
조영상,문준혁,양승만 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.2
Self-assembled structure of monodisperse colloidal particles can be used for various applications such as photonic and chemical sensing materials. Despite unique optical properties of colloidal crystal films or their inverted structures, fabrication of spherical structure of colloidal crystal can be more advantageous for novel applications such as photonic inks or electronic papers. In association with this application, emulsion or aerosol droplets containing monodisperse building block particles have been used as confined geometry for the preparation of spherical colloidal crystal by shear rupturing or electrospraying method. In this study, large amount of micron-sized aerosol droplets were generated by nebulizer or vibrating aerosol generator. Aerosol droplets were used as confined geometry for the fabrication of self-assembled structure of uniform silica particles. Monodisperse micro-spheres were assembled into spherical colloidal aggregates by evaporation-induced self-assembly inside droplets.
H발표장 : 재료1 ; H-15 : Preparation of Shape-anisotropic Building Blocks for Photonic Crystals
조영상,문준혁,양승만 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.1
Self-assembly method for the preparation of photonic bandgap materials has attracted great attention after pioneering work by Yablonovich in 1987. A number of colloidal crystallization methods of monodisperse microspheres have been developed in association with the self-assembly approaches for nanotechnology. Despite unique optical properties of colloidal crystals or their inverted structures, realization of a complete photonic bandgap is still difficult due to the symmetry of photonic crystal lattices. To address this problem, theoretical calculations for the introduction of asymmetry in the lattice of a photonic crystal have been conducted and ellipsoidal polystyrene lattice was prepared by Xia et al. to reduce the symmetry of opaline lattice. However, only lattice spacing between (111) planes of colloidal crystal could be changed. In this study, compressive stress was applied to prepare disk-shaped polystyrene colloidal crystals infiltrated with poly(dimethylsiloxane) aligned along (111) direction of opaline lattice. Scanning electron microscopy was used to observe the deformed shape of composite colloidal crystal. The reflectance spectra of were obtained to observe the change of pseudo-gap with the spectra of the original composite film.