• Bulletin of the Korean Chemical Society
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• v.31 no.3
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• pp.549-550
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• 2010

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2000.10a
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• pp.255-258
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• 2000

Technology development strategy factors which are summarized as technology's integration, technology's rotation, and technology's receptiveness are generated by technology development variables through survey of new technology-based firm of IT industry. They have the significant influence on management performance such as Net Sales Growth Rate, ROA and ROI.

• Proceedings of the Korean Society of Crop Science Conference
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• 2005.10b
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• pp.220-221
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• 2005

• Proceedings of the Korean Vacuum Society Conference
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• 1995.06a
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• pp.138-138
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• 1995

• Bulletin of the Korean Chemical Society
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• v.25 no.10
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• pp.1571-1574
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• 2004

• Proceedings of the Korean Fiber Society Conference
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• 2003.10a
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• pp.110-110
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• 2003

We attempted to establish the pattern remaking system using the three-dimensional data of the shape of clothes being worn, especially based on the knowledge of pattern construction. Moreover we tried to develop the deformable body model which can represent customers' body shape in the screen.

• JSTS:Journal of Semiconductor Technology and Science
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• v.9 no.1
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• pp.14-21
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• 2009

A digital differential transmitter based on CMOS inverter worked up to 2.8 Gbps at the supply voltage of 1 V with a $0.18{\mu}m$ CMOS process. By calibrating the output impedance of the transmitter, the impedance matching between the transmitter output and the transmission line is achieved. The PVT variations of pre-driver are compensated by the calibration of the rising-edge delay and falling-edge delay of the pre-driver outputs. The chip fabricated with a $0.18{\mu}m$ CMOS process, which uses the standard supply voltage of 1.8 V, gives the highest data rate of 4Gbps at the supply voltage of 1.2 V. The proposed calibration schemes improve the eye opening with the voltage margin by 200% and the timing margin by 30%, at 2.8 Gbps and 1 V.

• Journal of Industrial and Engineering Chemistry
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• v.68
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• pp.117-123
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• 2018

Recently, aqueous method has attracted lots of attention because it enables the solution-processed metal oxide thin film with high electrical properties in low temperature fabrication condition to various flexible devices. Focusing the development of aqueous route, many researchers are only focused on metal oxide materials. However, for expansive application of the aqueous-based metal oxide films, the systematic study of performance change with process variables for the development of aqueous-based metal oxide insulator film is urgently required. Here, we propose importance of process variables to achieve high electrical-performance metal oxide insulator based on the aqueous method. We found that the significant process variables including precursor solution temperature and humidity during the spincoating process strongly affect chemical, physical, and electrical properties of $AlO_x$ insulators. Through the optimization of significant variables in process, an $AlO_x$ insulator with a leakage current value approximately $10^5$ times smaller and a breakdown voltage value approximately 2-3 times greater than un-optimized $AlO_x$ was realized. Finally, by introducing the optimized $AlO_x$ insulators to solutionprocessed $InO_x$ TFTs, we successfully achieved $InO_x/AlO_x$ TFTs with remarkably high average field-effect mobility of ${\sim}52cm^2V^{-1}\;s^{-1}$ and on/off current ratio of 106 at fabrication temperature of $250^{\circ}C$.

• Journal of Korean Institute of Industrial Engineers
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• v.41 no.2
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• pp.150-161
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• 2015

This paper proposes a new approach to technology valuation, the market-replacement cost approach which integrates the cost-based approach and market-based approach. The proposed approach estimates the market-replacement cost of a target technology using R&D costs of similar R&D projects previously conducted. Similar R&D projects are extracted from project database based on document similarity between project proposals and technology description of the target technology. R&D costs of similar R&D projects are adjusted by mirroring the rate of technological obsolescence and inflation. Market-replacement cost of the technology is then derived by calculating the weighted average of adjusted costs and similarity values of similar R&D projects. A case of "Prevention method and system for the diffusion of mobile malicious code" is presented to illustrate the proposed approach.

• Journal of Microbiology and Biotechnology
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• v.14 no.3
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• pp.525-531
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• 2004

A strain antagonistic to Fusarium solani, CHO104, was selected from approximately 100 microorganisms isolated from soil. Strain CHO104 was identified as Bacillus amyloliquefaciens and found to be Gram-positive based on the Biolog system and 16S rRNA methods. A culture broth of B. amyloliquefaciens CHO104 also exhibited antimicrobial activity against various microorganisms. As such, the EtOAc extract of the culture broth was isolated by various column chromatographic procedures and HPLC. The antimicrobial and antifungal substance was then characterized as macrolactin A $(C_{24}H_{34}O_5)$ using high-resolution EI-MS and NMR analyses, and found to be very effective in inhibiting the growth of Staphylococcus aureus, E. coli, and Botrytis cinerea, even when using a concentration of one-twentieth of the benzoic acid as the control compound.