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Wang R.W.Y.,National Taiwan University of Science and Technology | Chou M.C.,National Taiwan University of Science and Technology | Chou M.C.,Chungyu Institute of Technology
Displays | Year: 2011

Packaging plays a role of protecting the product, attracting consumers' attention, and communicating the product's contents. Logo typography is the most important written information of packaging. Among the packaging forms of commodities in the market, cylindrical packaging is in the majority. In the condition that the commodities are highly homogenous, packaging design has become an important factor in marking their difference. For example, changing the arched surface of cylindrical packaging is one of the feasible schemes. However, will different arched surface designs in cylindrical packaging with varied font features affect consumers' findability of the commodity? We investigated performance of the seven font features of logo typography combined with seven types of arched surface by means of experiment. The results of this study are as follows: (a) Interaction occurs between arched surface with different proportions and varied font features. (b) When logo typography is on the arched surface of a cylinder that has a ratio of horizontal axis to vertical axis between [3:5] and [2:5], varied font features will make significant difference in findability. (c) When the arched surface is greater (i.e. the ratio will become smaller, e.g., [2:5]), the oblong typography is superior to square typography ([Balloon Bd BT (e.g., )]). (d) Optimum findability and discerning performance are achieved when the font feature used is a sans serif structure with equal strokes in thickness, according to the design principle of logo typography. If logo typography is put on the arched surface of an outstanding cylinder (when the visible arched surface is narrower), the fonts with strokes and structure like Script should be avoided as much as possible to keep off low findability. © 2010 Elsevier B.V. All rights reserved. Source

Sheu S.-H.,National Taiwan University of Science and Technology | Li S.-H.,Chungyu Institute of Technology | Chang C.-C.,National Taiwan University of Science and Technology
International Journal of Systems Science | Year: 2012

A system is subject to shocks that arrive according to a non-homogeneous Poisson process. As shocks occur, the system has two types of failures: type 1 failure (minor failure) is removed by a minimal repair, whereas type 2 failure (catastrophic failure) is removed by overhaul or replacement. The cost of minimal repair depends on age. A system is overhauled when the occurrence of a type 2 failure or at age T, whichever occurs first. At the N-th overhaul, the system is replaced rather than overhauled. A maintenance policy for determining optimal number of overhauls and optimal interval between overhauls which incorporate minimal repairs, overhauls and replacement is proposed. Under such a policy, an approach which using the concept of virtual age is adopted. It is shown that there exists a unique optimal policy which minimises the expected cost rate under certain conditions. Various cases are considered. © 2012 Taylor and Francis Group, LLC. Source

Chang H.-C.,Chungyu Institute of Technology | Yang C.-K.,National Taiwan University of Science and Technology
Signal, Image and Video Processing | Year: 2014

Video length reduction has become a very important research issue in recent years. Numerous approaches have been developed, but each has its limitations, such as fragmented results, lengthy computation time, and huge memory consumption. The main contribution of this paper is to propose a new approach that addresses all three mentioned limitations in one shot. First, by modifying the dynamic programming approach originally adopted in Avidan et al.’s work, the proposed approach extracts smooth 2D sheets and thus avoids fragmentations. Second, unlike Chen et al.’s graph-cut algorithm, this approach is much simpler and could achieve similar results but with a speed that is about two orders of magnitude faster. Third, the memory consumption is also greatly reduced to be one order of magnitude smaller. Finally and most importantly, an out-of-core scheme is also proposed, which generalizes this approach to be able to cope with videos of any lengths. Results are shown and compared with existing approaches to demonstrate the effectiveness of the proposed approach. © 2012, Springer-Verlag London Limited. Source

Wu H.,Chungyu Institute of Technology
Chemical Engineering Journal | Year: 2014

The mass transfer performance is usually affected by the wetting of the packing surface with absorbent solution, and the wetted surface can be affected by interfacial disturbances resulting from the gradient in surface tension between water vapor and absorbent solution. In order to discuss the effects of interfacial phenomena on mass transfer performance of water vapor absorbed by triethylene glycol (TEG) and lithium bromide (LiBr) solutions, an absorber packed closely with cylindrical packing was designed in this study and the packing material was polyvinyl chloride. In addition, the interfacial behaviors were observed from water droplet positioned on the surface of absorbent solution, and the surface stress was defined and calculated to analyze how mass transfer performance was affected by the stress. Experimental results show that surface stress increases with increases in concentration of TEG solution. The surface stress increases significantly when the concentration of TEG solution exceeds 92. wt.% The area of packing wetted by TEG solution increases as the concentration of TEG solution and humidity increase. Therefore, the mass transfer performance also increases with the higher concentration and higher humidity. © 2013 Elsevier B.V. Source

Chou M.-C.,Chungyu Institute of Technology
Communications in Computer and Information Science | Year: 2011

School emblems express the spirit of the school, winning a sense of identification from teachers and students. We wonder if the imagery conveyed by school emblems is in agreement with how viewers feel. The following is a summary of our research results: (1) The horizontal axis in the imagery space is "fond - hateful"; the vertical axis is "concrete - abstract". School emblems are distributed in the space between the two axes. (2) The influences on imagery are simplified into four factors. The four factors, arranged in the order of importance, are "psychology", "shape", "times" and "strength". (3) In the design of school emblems, "circular", "club-shaped" and the like are more popular in Taiwan. In contrast, irregular forms are less welcomed and should be avoided when making emblems. (4) To give a sense of entirety, school emblems have to be closed figures. Circular and square emblems, in particular, have better completeness. © 2011 Springer-Verlag. Source

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