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Your search keyword '"Lee, K.‐Y."' showing total 107 results
Start Over Author "Lee, K.‐Y." Publication Type Conference Materials
107 results on '"Lee, K.‐Y."'

15. High performance In0.53Ga0.47As FinFETs fabricated on 300 mm Si substrate

Author

Huang, M. L., primary, Chang, S. W., additional, Chen, M. K., additional, Oniki, Y., additional, Chen, H. C., additional, Lin, C. H., additional, Lee, W. C., additional, Khaderbad, M. A., additional, Lee, K. Y., additional, Chen, Z. C., additional, Tsai, P. Y., additional, Lin, L. T., additional, Tsai, M. H., additional, Hung, C. L., additional, Huang, T. C., additional, Lin, Y. C., additional, Yeo, Y.-C., additional, Jang, S. M., additional, Hwang, H. Y., additional, Wang, Howard C.-H., additional, and Diaz, Carlos H., additional

Published
2016
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19. In0.53Ga0.47As MOSFETs with high channel mobility and gate stack quality fabricated on 300 mm Si substrate

Author

Huang, M. L., primary, Chang, S. W., additional, Chen, M. K., additional, Fan, C. H., additional, Lin, H. T., additional, Lin, C. H., additional, Chu, R. L., additional, Lee, K. Y., additional, Khaderbad, M. A., additional, Chen, Z. C., additional, Chen, C. H., additional, Lin, L. T., additional, Lin, H. J., additional, Chang, H. C., additional, Yang, C. L., additional, Leung, Y. K., additional, Yeo, Y.-C., additional, Jang, S. M., additional, Hwang, H. Y., additional, and Diaz, Carlos H., additional

Published
2015
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47. Assessment and choice of input for wide-area damping controller in large-scale PV taking time delay into consideration.

Author

Shah, Rakibuzzaman, Mithulananthan, N., and Lee, K. Y.

Abstract

This paper used a twofold method to assess and select suitable control input for PV supplementary wide-area damping controller (WADC) in large-scale interconnected system. The geometric measure of controllability/observability index is used to preselect the input signals for WADC. Then, the Hankel interaction index (HII) is Calculated for each subsystem considering signal transmission delay to determine the optimal signal for WADC. Since the undesired controller interactions are reduced significantly, advanced controller tuning would be achieved with less control effort. A detailed case study is carried out in 16 machine 68 bus test system with WADC at PV by adopting selected signal as the input to the controller. The performance of the controller is verified at different signal transmission delays. [ABSTRACT FROM PUBLISHER]

Published
2012

49. PRESSING INDUCED POLYMORPHIC PHASE TRANSITION IN SUBMICRON-SIZED GAMMA-HMX.

Author

Lee, K.-Y. and Moore, D. S.

Subjects
RAMAN spectroscopy, EXPLOSIVES, NUCLEATION, CALORIMETRY, NANOSTRUCTURED materials, GAMMA rays
Abstract

Using Raman spectroscopy, a novel submicron-sized HMX (sm-HMX) was determined to be both the gamma polymorph and stable with respect to conversion to beta-HMX under ambient conditions for at least a year. Pressing of sm-HMX powder in a small diameter pellet press at pressures from 10,000 psi to 31,000 psi and 1 to 5 minute hold times was found to promote the gamma to beta polymorphic phase transition. The fraction converted and rate of conversion versus time after pellet removal from the press, measured using Raman spectroscopy, fit a sigmoidal curve, indicating nucleation and growth as a possible polymorphic transition mechanism. [ABSTRACT FROM AUTHOR]

Published
2007
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50. THE EVOLUTION OF SENSITIVITY IN HMX-BASED EXPLOSIVES DURING THE REVERSION FROM DELTA TO BETA PHASE.

Author

Peterson, P. D., Lee, K.-Y., Moore, D. S., Scharff, R. J., and Avilucea, G. R.

Subjects
RAMAN spectroscopy, HUMIDITY, EXPLOSIVES, FRICTION, PARTICLE size distribution, MOLECULAR structure
Abstract

In an effort to better understand the evolution of sensitivity in HMX-based explosives formulations during the reversion from the delta to the beta polymorph, we have performed friction and impact experiments on Class 1 (coarse) and Class 2 (fine) HMX [1]. Initial baselines for Type 12 drop weight impact and BAM friction sensitivities were obtained for the β-HMX starting material. The HMX was then heated at ∼184 °C for 14 h. Raman spectroscopy was used to confirm the conversion to delta-phase. Raman results show that the δ material remains δ for long periods when stored in a dessicator at room temperature (RT), converts to alpha when stored at RT and 20–40% relative humidity (RH) over a period of days, and reverts to beta over a period of days when stored at RT and 95–98% relative humidity (RH). Impact and friction tests were performed on the δ-HMX, converted α-HMX, and reverted β-HMX. The tests show similar sensitivities of the δ-HMX and converted α-HMX in both impact and friction, both of which are ∼10–20% more sensitive than the β-HMX and reverted beta depending on the particle size distribution. The α-HMX appears to be fairly stable over time (by Raman analysis) at ambient conditions, but fairly low humidity (20–40%), or in a dessicator. [ABSTRACT FROM AUTHOR]

Published
2007
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