• Proceedings of the IEEK Conference
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• 1999.11a
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• pp.663-667
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• 1999

In this paper, we review the conventional speaker verification algorithm and present the text-dependent speaker verification system for application over telephone lines and its result of experiments. We apply blind-segmentation algorithm which segments speech into sub-word unit without linguistic information to the speaker verification system for training speaker model effectively with limited enrollment data. And the World-mode] that is created from PBW DB for score normalization is used. The experiments are presented in implemented system using database, which were constructed to simulate field test, and are shown 3.3% EER.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.1
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• pp.235-247
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• 2016

The purpose of this study is to analyze elementary school students' pre-concept of electromagnet and to investigate effects of instruction through social interactions on conceptual changes of the electromagnet. For the purpose, 108 elementary school students of 3 classes were selected from the 6th grade. They were divided into the control group I, control group II and experimental group. The control group I was treated through traditional instruction on the basis of text book. The control group II was instructed with a modified version of the textbook to help them better understand the concept of electromagnet. The experimental group was treated through instruction on the basis of the above modified version of the text book and social interactions. Conceptual changes on electromagnet before and after the treatment were quantitatively and qualitatively analyzed using the identical test. The students' styles of social interaction were qualitatively analyzed with tape records of their discussions and work sheets. Effects of instruction through social interactions based on radical constructivism on the 6th-grade elementary school students' concept of electromagnet were examined here. The results were described as follows. Firstly, after the treatment, the experimental group was statistically significantly higher in mean values of conceptual understanding and academic achievement than both the control group I and II. Secondly, styles of social interaction in the three sub-groups of the experimental group were qualitatively analyzed, among the threes, high- and medium-level sub-groups were higher in the frequency of linguistic social interaction than the low-level sub-group. Those students who were excellent in communication skills actively participated in linguistic social interactions. In discussions among the three sub-groups, students of the high- and medium-level sub-groups provided explanations or information while those of the other sub-group sometimes were passive by just listening, but in large actively participated in communication. In conclusion, instruction through social interactions was effectively changed in the 6th-grade elementary school students' concept of electromagnet.

• Proceedings of the Zoological Society Korea Conference
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• 2000.04a
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• pp.88.1-88
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• 2000

No Abstract, See Full Text

• Proceedings of the Optical Society of Korea Conference
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• 2001.08a
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• pp.164-165
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• 2001

No Abstract.See Full-text

• Proceedings of the Korean Society of Life Science Conference
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• 2007.10a
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• pp.63.2-63.2
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• 2007

See Full Text

• Proceedings of the Korean Society of Life Science Conference
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• 2007.10a
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• pp.64.1-64.1
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• 2007

See Full Text

• Proceedings of the Korean Society of Life Science Conference
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• 2007.10a
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• pp.64.2-64.2
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• 2007

See Full Text

• Proceedings of the Korean Society of Life Science Conference
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• 2007.10a
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• pp.65.1-65.1
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• 2007

See Full Text

• Science of Emotion and Sensibility
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• v.17 no.3
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• pp.3-14
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• 2014

Since the domestic introduction of iPhone in 2009, use of smartphones rapidly increased and many tasks, previously performed by various devices, are now performed by smartphones. In this process the importance of reading little text using small smartphone screen has become highly significant. This research tested how display factors of smartphone (pixel density, sub-pixel structure, luminance) and environmental factor (illumination) affect legibility related discomfort in text reading. The results indicated that legibility related discomfort is largely affected by pixel density, where people experience inconvenience when the pixel density becomes lower than 300 PPI. Illumination has limited effect on legibility related discomfort. Participants reported more legibility related discomfort when stimulus presented in various levels of illumination rather than single illumination level. Sub-pixel structure and luminance did not affected legibility related discomfort. Based on the results we suggest lower limit resolution of smart devices (smartphones, tablet computers) of different sizes for text legibility.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.227-229
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• 2011

To develop an effective web site, Ajax, jQuery and various techniques have been developed. Administrator interface to powerful, where the administrator can easily create a variety of functions from the menu, but this is not leaving the form of text or code, modify it and then when is low. To solve these problems, in this paper we are making conjunction with CSS which provide the database with open font and CSS features in variety of images, converted into text using the open font, these existing production methods with a Web site that provides a differentiated ways.