8,300 research outputs found
On Error Estimation for Reduced-order Modeling of Linear Non-parametric and Parametric Systems
Motivated by a recently proposed error estimator for the transfer function of
the reduced-order model of a given linear dynamical system, we further develop
more theoretical results in this work. Furthermore, we propose several variants
of the error estimator, and compare those variants with the existing ones both
theoretically and numerically. It has been shown that some of the proposed
error estimators perform better than or equally well as the existing ones. All
the error estimators considered can be easily extended to estimate output error
of reduced-order modeling for steady linear parametric systems.Comment: 34 pages, 12 figure
Joint Venture Manufacturing in China : an Exploratory Investigation
International joint venture (IJV) manufacturing is important for both the
Chinese economy and a large number of foreign investors. A review of the
literature from both Western and Chinese researchers showed that although the
purpose and advantages of IJV manufacturing in China are known, a vital aspect –
operations management – has largely been ignored. Therefore, exploratory
interviews with managers at six companies were conducted to investigate the
operations management issues faced by IJV manufacturers in China. Four main
problems were identified: the difficulty with recruiting and training suitable
employees; all aspects of supplier management; problems with achieving high-
quality output; and achieving an effective IJV business culture. The results
have implications not only for researchers, in that they indicate where more
research is necessary, but also for practitioners, since they identify the areas
where IJV manufacturers are most likely to encounter problems in C
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