Tainan University of Technology

About: Tainan University of Technology is a education organization based out in Tainan City, Taiwan. It is known for research contribution in the topics: Password & Authentication. The organization has 311 authors who have published 641 publications receiving 10826 citations.

Low-energy Landau levels of Bernal zigzag graphene ribbons

Abstract: Low-energy Landau levels of Bernal zigzag graphene ribbons in the presence of a uniform perpendicular magnetic field (B) are investigated by the Peierls coupling tight-binding model. State energies and associated wave functions are dominated by the B-field strength and the kz-dependent inter-ribbon interactions. The occupied valence bands are asymmetric to the unoccupied conduction bands about the Fermi level. Many doubly degenerate Landau levels and singlet curving magnetobands exist along the kx and kz directions, respectively. The kz-dependent inter-ribbon interactions dramatically modify the magnetobands, such as the lift of double degeneracy, the change in state energies, and the production of two groups of curving magnetobands. They also change the characteristics of the wave functions and cause the redistribution of the charge-carrier density. The kz-dependent wave functions are further used to predict the selection rule of the optical transition.

Cerebral “eThrombosis”: Cerebral Venous Sinus Thrombosis Associated with Prolonged Sitting in Front of a Computer

Abstract: Venous thromboembolism caused by prolonged sitting during air travel has been recognised as economy-class syndrome for more than 30 years. Since 2003, the term “eThrombosis” has been proposed to describe the 21st Century variant of venous thromboembolism associated with immobilisation. We reported a case of cerebral venous sinus thrombosis presenting with severe headache after a prolonged period of sitting for over 12 hours in front of a computer for recreational purpose. We described this case as cerebral “eThrombosis”. Considering the widespread use of computers for many purposes including working, recreation and communications in the present digital era, we would like to put forward that prolonged immobilisation associated with computer use is a possible provoking risk factor of cerebral venous sinus thrombosis.

A Study on Changing of Minangkabau Houses from Sumatra to Malay Peninsula

Abstract: Minangkabau house is one of the most particular houses in Southeast Asia. The uplifted rooftop as the shape of buffalo horns, and large-scale single pile house are its main features. From the 17th to 18th century, Minangkabau people in Indonesia migrated massively from the Pagarruyung area of Sumatra to the state of Sembilan on Malay Peninsula. They brought with them the system of a matrilineal society (Adat pepatih), but there was not a complete transplantation of their particular house. This research conducts field investigations on Minangkabau houses in there two areas and analyzes the reasons of the change and major influential factors. The results show how Minangkabau houses transfer from large single pile house into extended small grouped pile houses, which has become another kind of vernacular houses in Malay Peninsula.

Star Funds, Spillover Effect and Fund Advertisements: From the Viewpoint of Individual Funds and Fund Families

Abstract: This study adopts the Panel Data Approach and Logistic Regression to examine the effect of fund advertisements from the viewpoint of both individual funds and fund families. Our empirical results show that adopting family advertisements is a good decision both for individual funds and their families. However, there exists a conflict between individual funds when the individual fund advertisement is executed. The individual funds do not respond well to individual fund advertisements of other funds within the same family because it consumes the resources of the family and does not have a spillover effect. One exception is star funds. The individual fund advertisement of star funds not only results in more flows but also has a spillover effect, which thus brings the star funds a higher probability of being individually advertised. As long as the funds are performance (flow) star and winner funds within the whole stock funds or only the performance (flow) star and winner funds within the family, their advertisement probability is raised. This is consistent with the argument that if the funds confirm the benefit of the family, the family may decide to distribute more limited resources to these funds (Chevalier and Ellison, 1997).

Heuristic-Based Approach for Constructing Hierarchical Knowledge Structures

Abstract: Knowledge structure identify the way how people think and provides a macro view of human perception. However, the usability of knowledge is limited due to its structural inconsistency and complexity which makes it difficult to communicate and share. Without knowledge transferring, individuals and organizations are not capable to achieve better performance by learning and communication from others. Previous researches exhibit several disadvantages, such as multiple inheritance and lacking hierarchical features, in state-of-the- art techniques. To tackle this critical matter, we propose a new tree-based knowledge structure for achieving knowledge interoperability and enhancing structural comprehensiveness. According to our evaluation results; the proposed method successfully formulates the hierarchical relations from human cognition and increases the complexity in knowledge navigation and visualization.