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Ho-don Yan,YU-CHEN KUO,SHAN-YU CHEN 연세대학교 동서문제연구원 2011 Global economic review Vol.40 No.4
This paper analyses the relationship between entrepreneurship and an industrial cluster in general, by particularly examining one of Taiwan’s industrial clusters, Houli’s saxophone cluster. Our purpose is threefold. First, instead of investigating high-profile and chiefly government-directed clusters, such as science parks, we focu s on a small and medium enterprise (SME) cluster. Second, unlike most studies that usually show how clusters foster entrepreneurship, we emphasize the role of entrepreneurship in the formation of the cluster industry.We discuss how a skilled artisan turns into an entrepreneur and how an apprentice-based cluster is formed. Third, we show that what used to be the competitive advantages of Houli’s saxophone cluster a peculiar apprentice-based cluster and the supportive precision machine agglomeration in central Taiwan-turn into its weaknesses when globalization surged in the 1980s. A three-year stint in government support, attempting to revitalize Houli’s saxophone cluster by organizing a functional network and improving the technology, was unable to overturn the challenges from globalization. Although entrepreneurs learn to adapt to the changing environment, the current lackluster performance of Houli’s saxophone industry demonstrates that regardless of how much glory there was in the past, it is inevitable in a ‘‘living’’ economy that a cluster cannot avoid its own ebb and flow.
Millimeter-Wave Channel Modeling Based on A Unified Propagation Graph Theory
Chen, Jiajing,Yin, Xuefeng,Tian, Li,Kim, Myung-Don IEEE 2017 IEEE communications letters Vol.21 No.2
<P>In this letter, a unified propagation graph modeling approach is proposed, which is applicable to predicting multipath radio propagation by considering both specular components (SCs) and diffuse components (DCs). In this approach, the semi-deterministic graph modeling is used to generate multi-bounce DCs, and a single-lobe directive model is applied to reproducing individual single-bounce SCs together with DCs associated. The performance of the proposed approach is assessed by comparing measured channel characteristics with simulation results for 60 GHz millimeter-wave propagation in an office environment.</P>
BUILDING INFORMATION MODELING (BIM)-BASED DESIGN OF ENERGY EFFICIENT BUILDINGS
ChungSuk Cho,Don Chen,Sungkwon Woo 한국BIM학회 2012 KIBIM Magazine Vol.2 No.1
With the increased awareness of energy consumption as well as the environmental impact of building operations, architects, designers and planners are required to place more consideration on sustainability and energy performance of the building. To ensure most of those considerations are reflected in the building performance, critical design decisions should be made by key stakeholders early during the design development stage. The application of BIM during building energy simulations has profoundly improved the energy analysis process and thus this approach has gained momentum. However, despite rapid advances in BIM-based processes, the question still remains how ordinary building stakeholders can perform energy performance analysis, which has previously been conducted predominantly by professionals, to maximize energy efficient building performance. To address this issue, we identified two leading building performance analysis software programs, Energy Plus and IES <Virtual Environment> (IES <VE>), and compared their effectiveness and suitability as BIM-based energy simulation tools. To facilitate this study, we examined a case study on Building Performance Model (BPM) of a single story building with one door, multiple windows on each wall, a slab and a roof. We focused particularly on building energy performance by differing building orientation and window sizes and compared how effectively these two software programs analyzed the performance. We also looked at typical decision-making processes implementing building energy simulation program during the early design stages in the U.S. Finally, conclusions were drawn as to how to conduct BIM-based building energy performance evaluations more efficiently. Suggestions for further avenues of research are also made.
Lee, Hwi Don,Jung, Eun Joo,Jeong, Myung Yung,Chen, Zhongping,Kim, Chang-Seok IOP Pub 2013 Measurement Science and Technology Vol.24 No.6
<P>A novel linearized interrogation method is presented for a Fourier domain mode-locked (FDML) fiber Bragg grating (FBG) sensor system. In a high speed regime over several tens of kHz modulations, a sinusoidal wave is available to scan the center wavelength of an FDML wavelength-swept laser, instead of a conventional triangular wave. However, sinusoidal wave modulation suffers from an exaggerated non-uniform wavelength-spacing response in demodulating the time-encoded parameter to the absolute wavelength. In this work, the calibration signal from a polarization-maintaining fiber Sagnac interferometer shares the FDML wavelength-swept laser for FBG sensors to convert the time-encoded FBG signal to the wavelength-encoded uniform-spacing signal.</P>
BUILDING INFORMATION MODELING (BIM)-BASED DESIGN OF ENERGY EFFICIENT BUILDINGS
Cho, Chung-Suk,Chen, Don,Woo, Sungkwon Korean Institute of Building Information Modeling 2012 KIBIM Magazine Vol.2 No.1
With the increased awareness of energy consumption as well as the environmental impact of building operations, architects, designers and planners are required to place more consideration on sustainability and energy performance of the building. To ensure most of those considerations are reflected in the building performance, critical design decisions should be made by key stakeholders early during the design development stage. The application of BIM during building energy simulations has profoundly improved the energy analysis process and thus this approach has gained momentum. However, despite rapid advances in BIM-based processes, the question still remains how ordinary building stakeholders can perform energy performance analysis, which has previously been conducted predominantly by professionals, to maximize energy efficient building performance. To address this issue, we identified two leading building performance analysis software programs, Energy Plus and IES <Virtual Environment> (IES <VE>), and compared their effectiveness and suitability as BIM-based energy simulation tools. To facilitate this study, we examined a case study on Building Performance Model (BPM) of a single story building with one door, multiple windows on each wall, a slab and a roof. We focused particularly on building energy performance by differing building orientation and window sizes and compared how effectively these two software programs analyzed the performance. We also looked at typical decision-making processes implementing building energy simulation program during the early design stages in the U.S. Finally, conclusions were drawn as to how to conduct BIM-based building energy performance evaluations more efficiently. Suggestions for further avenues of research are also made.
Yi-Cheng Chu,Chih Chen,Nicholas Kao,Don Son Jiang 대한금속·재료학회 2017 ELECTRONIC MATERIALS LETTERS Vol.13 No.6
The thermo-mechanical properties of microbumps serving as interconnects betweenSi chips in three-dimensional integrated circuits were examined in this study. Arraysof SnAg microbumps were subjected to temperature cycling tests up to 2500 cycles. Extensive cracks formed in the microbumps, and some of them propagated across theentire microbump. A microstructural analysis by electron back scattering diffractionindicated that the cracks propagated along two paths: Sn grain boundaries with highmisorientation angles and SnAg/Ni3Sn4 interfaces. The average Sn grain size was only7.4 μm, implying a large proportion of grain boundaries per unit volume, whichfacilitated crack propagation across the microbump of 20 μm in diameter.
Chao-Yin Lin,Don-Yun Chen,I-Chun Liu,Naiyi Hsiao 한국사회복지학회 2010 Asian Social Work and Policy Review Vol.4 No.3
This study carries out in-depth political feasibility analysis of the prospective health financingreform currently taking place in Taiwan. The National Health Insurance (NHI) Program, whichwas established in Taiwan in 1995, covers virtually all of the island’s citizens. Between the years2001 and 2004, the Taiwanese Government organized a taskforce to carry out the wholesale reformof the NHI program into the so-called ‘Second Generation NHI Program’. This study is part of thecomprehensive review, focusing on the preferences and positions of key policy stakeholders withregard to the financial reform proposals, as well as their network relationships. The approach ofstakeholder analysis was employed to conduct this empirical study. The results reveal that the newfinancing scheme has a certain degree of support from the policy stakeholders participating in thisstudy, and that in particular, the measures concerning equity and sustainability were most welcome. However, controversy remains with regard to the issue of the equitable sharing of contributions. It is clear that there is much strong support for the new scheme amongst the administrativeand legislative elite, although the same level of support is not evident amongst the social eliteaffiliated with employees’ associations and welfare groups.