Tunghai University was founded by Methodist missionaries in 1955 as a comprehensive university. Moreover, Tunghai University was founded as the first private university making it the second oldest university in Taiwan. The university is located at Xitun District, Taichung, Taiwan, an urbanized area. On the grounds, Luce Memorial Chapel is a local landmark. The logo of the university contains the cross in reference to the statement in the founding documents that it was "founded in the love of Jesus," and the three linked circles refer to the Holy Trinity as well as the motto, "Truth, Faith, Deeds." Wikipedia.
Liu M.-H.,Tunghai University
Computers and Education | Year: 2012
This study investigated the application of an online videocase discussion community into fostering preservice and inservice EFL (English as a foreign language) teachers' professional development in Taiwan. This investigation further revealed the nature and development of discussion discourse and the participating teachers' perceptions of this online learning experience. Also included were potential concerns or difficulties encountered by these community members. There were 21 preservice teachers, 7 secondary school teachers, and 4 university teachers involved in this study. Multiple data collection methods included teaching videos, online discussion messages, interviews, reflection journals, and an open-ended questionnaire. The findings showed that the preservice and inservice teachers appeared to respectively play different roles in discussing teaching videocases online. Yet, what they noticed in the teaching events shifted from diverse to similar focuses after engaging in online videocase discussion for almost one year. These teachers further perceived professional learning opportunities in this community, albeit several issues might hinder some of them from joining the discussion frequently. Pedagogical implications and research suggestions are offered for teacher educators and researchers to further codify and document teacher professional development in various online videocase discussion contexts. © 2011 Elsevier Ltd.
Wang C.-S.,Tunghai University
Computers in Industry | Year: 2010
The main purpose of this research is to develop a process for identifying the most suitable shoe last for human feet. A fitness function was defined to determine the most suitable shoe last among several alternatives. Based on reverse engineering (RE) technology, this research included scanning the surface of human feet and shoe lasts in STL (Stereo Lithography) format. An STL slicing algorithmconstructed the three most important measurements for human feet and shoe last, i.e., ball girth, waist girth, and instep girth. Fuzzy theory was used to analyze and build the membership functions of these three girths between the shoe last and human feet. The analytical hierarchy process (AHP) was applied to decide the weighting functions for each girth to determine the fitness function in all shoe last databases for the feet. Three case studies were implemented to find the ranking of 10 shoe lasts in the database. This research, which defined as the relationships between shoe last and human feet, can be used as a good reference for design in the shoe-making process. © 2010 Elsevier B.V. All rights reserved.
Chen C.-F.,Tunghai University
IEEE Microwave and Wireless Components Letters | Year: 2013
A new varactor-tuned microstrip dual-band band-pass filter (BPF) based on the tri-mode stub-loaded stepped-impedance resonators (SL-SIRs) is investigated. By employing the dual coupling paths, the two passbands can then be fully controlled and designed independently. Meanwhile, a third-order bandpass response can be realized by properly incorporating the first three resonator modes of a tri-mode SL-SIR at adjacent frequencies into the passband. Thus, the third-order dual-band BPF can be designed with only two resonators, resulting in an extremely small size. In addition, for the electronic tuning, three varactors are loaded onto the open-ends of each resonator and, thus, the passband frequency can be changed by properly tuning the first three resonant modes of the SL-SIR. For the demonstration, a compact reconfigurable dual-band BPF with a size of 0.19 λ0 by 0.04 λ0 has been designed and fabricated. Good agreement is also achieved between simulation and measurement. © 2001-2012 IEEE.
Watanabe M.,Kyushu University |
Chen K.-Y.,Feng Chia University |
Chang Y.J.,Tunghai University |
Chow T.J.,Academia Sinica, Taiwan
Accounts of Chemical Research | Year: 2013
Acenes are a class of aromatic hydrocarbons composed of linearly fused benzene rings. Noteworthy features of these molecules include their extended flat structure and the narrow gap between the HOMO and LUMO energy levels. However, the preparation of larger acenes, those that are larger than pentacene, has been challenging. These molecules are relatively unstable and have low solubility in typical solvents. Recently researchers have developed a new synthesis route for higher acenes using stable and soluble "precursors, " which generate these structures on demand by either heating or irradiation of light. Using this method, nonsubstituted hexacene, heptacene, octacene, and nonacene were successfully prepared.In this Account, we summarize the preparation of nonsubstituted acenes from corresponding precursors, describe their physical properties, and discuss potential applications including potential usage in organic semiconductor devices. We first introduced the concept of using a precursor in the work with pentacene. Overall, we divide this methodology into two categories: masking pentacene itself with a dienophile to form a cycloadduct and the construction of higher acenes through conventional synthetic procedures. For the first category, a diverse array of dienophiles could be chosen, depending on the processing needs, especially for use in field-effect transistors (FETs). For the second category, researchers synthesized the pentacene precursor molecules using a multistep procedure. Upon proper activation, these molecules expel small fragments to generate pentacene readily. This strategy enabled the production of pentacene andunprepared higher acenes ranging from hexacene to nonacene. This new method provides a way to unravel the fascinating chemistry of higher acenes. © 2013 American Chemical Society.
Tunghai University | Date: 2015-01-09
This present invention discloses an isolated peptide which amino acid sequence is SEQ ID NO.:1. The isolated peptide can inhibit the expressions of signal transduction proteins related to the heart hypertrophy pathway, apoptosis of myocardial cells related proteins, and cardiac fibrosis related proteins to have effects of preventing such as apoptosis of myocardial cells, cardiac fibrosis, heart hypertrophy, cardiac inflammation or other heart diseases. Therefore, the peptide disclosed in this present invention can be an active ingredient of pharmaceutical composition to have effects for preventing or treating cardiovascular diseases.