Browsing by Author "Kao, C. -H."

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Spectral Shaping and Continuous Tuning of Multi-color Carrier-Envelope Phase Locked Pulse
(2015-01-01)
Yabushita, A.
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Kao, C. -H.
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Kobayashi, T.
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電子物理學系
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Department of Electrophysics
We have proposed and demonstrated two schemes to generate multi-color CEP-locked beams by using the NOPA. In the first scheme, a spatial filter in the spectrally dispersed seed light made the seed spectrum have three peaks, and the generated idler beam also had three peaks. The spectrum of the CEP-locked pulse can be shaped into arbitral spectral shape. In the second scheme, parabolic chirp was introduced on the seed pulse to generate two-color CEP-locked pulse whose colors are tunable.
Total-factor Energy Efficiency for Regions in Taiwan
(2012)
Hu, J-L.
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Lio, M. -C.
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Kao, C. -H.
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Lin, Y. -L.
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經營管理研究所
This study applies data envelopment analysis (DEA) to compute the efficient energy-saving ratios for 23 administrative regions in Taiwan from 1999 2005. One output (total income) and seven inputs (local government expenditure, employment, processed trash, household and commercial electricity consumption, industrial electricity consumption, gasoline sales volume, and diesel sales volume) are considered in the DEA models. It is found that most of the 23 administrative regions do not efficiently use household and commercial electricity, industrial electricity, gasoline, and diesel, even with respect to Taiwan's own efficiency frontier. Our results suggest that improving energy efficiency in household and commercial electricity use is a priority for non-metropolitan regions. There is still much room to improve the efficiency of electricity use for industries, especially for regions where manufacturing and high-tech industries concentrate, by means of cleaner production, energy-saving technology and equipment, etc. Motor vehicle energy efficiency is the key factor for saving gasoline. The energy efficiency of farming machines and carrying equipment should be continuously improved, especially for rural regions.