4,172 research outputs found
Hong Kong Output Dynamics: An Empirical Analysis
Full text linkAdvanced statistical techniques are used to analyze Hong Kong output dynamics. Hong Kong, Japan and the U.S. are found to share some common long-term and short-term cyclical variations. While the Hong Kong economy is susceptible to external shocks and Granger-caused by the other two economies, local factors account for a large proportion of output growth variability and are mainly responsible for her output uncertainty. On the transmission mechanism, the selected trade and financial variables have incremental explanatory power but do not lessen the ability of domestic and foreign output variables to explain Hong Kong growth dynamics. Interestingly, the U.S. does not appear to exert undue influences on Hong Kong.Common trends/cycles, transmission mechanism, structural determinants
On unitary convex decompositions of vectors in a -algebra
Full text linksummary:By exploiting his recent results, the author further investigates the extent to which variation in the coefficients of a unitary convex decomposition of a vector in a unital -algebra permits the vector decomposable as convex combination of fewer unitaries; certain -algebra results due to M. Rørdam have been extended to the general setting of -algebras
Phase I/II trail of cultured autologous melanocytes and a new transplantation method for vitiligo treatment.
No full textPhase sensitive detection for mode-locked fiber laser gyroscope
No full textWe demonstrate a significant improvement in the performance of a mode-locked fiber laser gyroscope by using a lock-in amplifier. We show that the direct output of the lock-in amplifier has a desirable linear dependence on the rotation rate and is insensitive to the intensity difference between two pulses that causes phase error in the time interval measurement. Two orders of magnitude improvement is demonstrated in the longterm stability compared to that from previously reported time interval measurement
Patterning dissociated heterotypic adult cells into functional folliculoid organ germs by substratum-facilitated self-assembly
No full textFully integrated low phase-noise VCOs with on-chip MEMS inductors
No full textWe present fully integrated high-performance voltage-controlled oscillators (VCOs) with on-chip microelectromechanical system (MEMS) inductors for the first time. MEMS inductors have been realized from the unique CMOS-compatible MEMS process that we have developed to provide suspended thick metal structures for high-quality (Q) factors. Fully integrated CMOS VCOs have been fabricated by monolithically integrating these MEMS inductors on the top of the CMOS active circuits realized by the TSMC 0.18-mum mixed-mode CMOS process. Low phase noise has been achieved as -124 and -117 dBc/Hz at 300-kHz offset from carrier frequencies of 1 and 2.6 GHz, respectively, in the fabricated single-chip VCOs.This work was performed as part of the National Research
Laboratory Program of the Ministry of Science and Technology
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