• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2007.11a
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• pp.638-643
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• 2007

With development of high display quality of TV and Monitor, personal audio system is arising great interest. In this study, we applied a method to make a good bright zone around the user and dark zone to other region by maximizing the ratio of sound energy between the bright and dark zone. We have attempted to use a line speaker array system to localize the sound in our listening zone. It depends on the size of the zone and array parameters, for example, array size, speaker spacing, wave length of sound.

• MALSORI
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• no.51
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• pp.151-165
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• 2004

For educational and research purposes, a Korean speech recognition platform is designed. It is based on an object-oriented architecture and can be easily modified so that researchers can readily evaluate the performance of a recognition algorithm of interest. This platform will save development time for many who are interested in speech recognition. The platform includes the following modules: Noise reduction, end-point detection, met-frequency cepstral coefficient (MFCC) and perceptually linear prediction (PLP)-based feature extraction, hidden Markov model (HMM)-based acoustic modeling, n-gram language modeling, n-best search, and Korean language processing. The decoder of the platform can handle both lexical search trees for large vocabulary speech recognition and finite-state networks for small-to-medium vocabulary speech recognition. It performs word-dependent n-best search algorithm with a bigram language model in the first forward search stage and then extracts a word lattice and restores each lattice path with a trigram language model in the second stage.

• Molecular & Cellular Toxicology
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• v.1 no.1
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• pp.7-12
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• 2005

Proteomics has recently received intense scientific interest after the completion of the Human Genome Project, because this genome-based high technology allows to search new drug targets or diagnostic markers. Many proteome projects including Human plasma proteome projects (HPPP), Human liver proteome projects (HLPP), Human brain proteome projects (HBPP), and Mouse and Rat Proteome Project (MRPP) have been carried out and proteomic analytical techniques have been developed in second dimensional electrophoresis (2-DE) and LC/MS system. This powerful method has been applied in toxicology producing a new term "Toxicoproteomics". In this review, recent proteome projects, proteomic technologies, and toxicoproteomics will be discussed.

• Research in Mathematical Education
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• v.7 no.2
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• pp.101-117
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• 2003

In this paper, we give examples of models we have created for use in university mathematics courses. We explain the concept of linear transformation, investigate the roles of each component of 2 ${\times}$ 2 and 3 ${\times}$ 3 transformation matrices, consider the relation between sound and trigonometry, visualize the Riemann sum, the volume of surfaces of revolution and the area of unit circle. This paper illustrates how one can use Mathematica to visualize abstract mathematical concepts, thus enabling students to understand mathematics problems effectively in class. Development of these kinds of teaching and learning models can stimulate the students' curiosity about mathematics and increase their interest.

• Journal of Agricultural Extension & Community Development
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• v.16 no.3
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• pp.587-614
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• 2009

This research focuses on rural interpreter's behaviors and needs in rural tourism village around country. Although it happens that many farm tourism guides are accomplished in rural tourism village, but significant interest on this topic has not been identified yet. Therefore the primary objective of this study lies in identifying rural interpreter's behaviors and needs who is active play in rural tourism village. The study was conducted in a small rural community where tourism is still at its emerging stage. It was found that rural interpreter played active role by studying about rural culture and farm interpret for himself. But they was pointed out multifarious activities with various rural experience guide, and they used reality in the process of the interpret, but not village history. farm tourism guides demanded their expertise or special ability.

• Journal of the Korea Institute of Military Science and Technology
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• v.10 no.1
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• pp.70-77
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• 2007

Simulation Based Acquisition(SBA) gains interest from the defense acquisition community. To accomplish SBA efficiently, M&S should be collaborately used in. This paper proposes PBA(PlugIn-Based Architecture) that is a common software development infrastructure and provides reuse mechanism with plugin components. PlugIns are reuse entity possible to plug-in-play statically and dynamically. This architecture supports stand alone simulation and HLA-compliant distributed simulation also.

• Journal of the Korean Society for Precision Engineering
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• v.16 no.12
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• pp.60-70
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• 1999

An efficient automatic inspection system for Floating Seal is developed, The proposed system consists of a high resolution line scan camera, microcomputer, and PLC (Programmable Logic Controller). In order to perform rapid inspection, The ROI (Region of Interest) is extracted from the original image. There are types of defects; shape defects and surface defects. Each features of defects are captured by edge detect, segmentation, morphological operation, and threshold analysis. PLC controller is used to synchronize the whole system and store the inspection results temporarily to reduce the overhead of microcomputer. As a result, the system is being utilized successfully in a teal inspection line.

• Journal of the Korea Furniture Society
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• v.19 no.3
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• pp.163-171
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• 2008

This Study has been conducted with many concerns about various teaching methods that attainable the substantial learning process of practical affair system in order to cope with the rapidly changing situation of the times and the educational environment in the field of design. Design Process Studying Method which utilizes 'Story Telling' as the process where the whole learning is achievable, in accordance with the educational target of the creative professional technician training that complies with the requirement of the times, and by progress of the integrated structure dividing as 1, 2, 3 stages, it doubles various studying effect, and it enables to expect the connection studying effect with other study-subject. Since the process of such program induces the positive participation of the student, it was known that a superior interchange of information is attainable, and due to its enthusiasm and interest on the study, the participating rate for study was appeared very highly.

• Journal of the Korea Furniture Society
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• v.19 no.3
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• pp.203-210
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• 2008

This study intended to develop wellbeing flowerpots on desk which could create a healthy atmosphere in an office and raise people to joy. The pots developed by Blooming company emphasized a design as touching people's emotion through the organic design of the streamline which is different from the geometric line of the flowerpots manufactured by the company as focusing the design on the utility before. As a result, the pots derived from the organic design concepts could provide happiness or joy to the people, and would be a necessity on the narrow desk along with books or writing materials while working. Therefore, the beautifully streamlined pots are expected to compete with European market as the foreign buyers had a great interest in them at the Fair held in Hong-kong at the end of April, 2008.

• Journal of the Korean Applied Science and Technology
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• v.22 no.3
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• pp.228-233
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• 2005

Langmuir-Blodgett(LB) technique can speak the best candidate of the future molecular electronic devices. But, precursor as molecular ultrathin film devices require the bulk property that are influenced by the molecular orientation. So, this device is one of current interest in molecular electronic device development of new materials. In this study, quantitative evaluation of molecular orientation in LB films of polyamic acid alkylamine salt was performed analysis experiment comparing the absorption or transmission intensity of the FT-IR spectrometer and reflection or absorption spectra with UV-visible absorption spectra. It could find that the polar angle(${\theta}$) of the dipole moment appears in about $68^{\circ}$ and the tilting angle of the alkyl chain is about $11.5^{\circ}$.