• Proceedings of the KIEE Conference
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• 2008.10b
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• pp.290-291
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• 2008

The most popular speech feature used in speech recognition today is the Mel-Frequency Cepstral Coefficients (MFCC) algorithm, which could reflect the perception characteristics of the human ear more accurately than other parameters. This paper adopts MFCC and its first order difference, which could reflect the dynamic character of speech signal, as synthetical parametric representation. Furthermore, we quote Dynamic Time Warping (DTW) algorithm to search match paths in the pattern recognition process. We use the software "GoldWave" to record English digitals in the lab environments and the simulation results indicate the algorithm has higher recognition accuracy than others using LPCC, etc. as character parameters in the experiment for Digital Isolated Word Recognition (DIWR) system.

• The Transactions of the Korea Information Processing Society
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• v.4 no.8
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• pp.2017-2024
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• 1997

The main focus of this paper is the recognition of printed Hangul documents in terms of typeface, character size and character slope for IICS(Intelligent Image Communication System). The fixed-size blocks extracted from documents are analyzed in frequency domain for the typeface classification. The vertical pixel counts and projection profile of bounding box are used for the character size classification and the character slope classification, respectively. The MLP with variable hidden nodes and error back-propagation algorithm is used as typeface classifier, and Mahalanobis distance is used to classify the character size and slope. The experimental results demonstrated the usefulness of proposed system with the mean rate of 95.19% in typeface classification. 97.34% in character size classification, and 89.09% in character slope classification.

• The Journal of Korean Academy of Sensory Integration
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• v.19 no.3
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• pp.13-21
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• 2021

Objective : The purpose of this study was to investigate the sensory processing factors that contribute to the temperament and character traits in early childhood. Methods : In this cross-sectional study, caregivers of typically developing children aged 3-6 years responded to the Sensory Profile and the Junior Temperament and Character Inventory. Multiple regression analysis was performed with temperament and character traits as criterion variables and sensory processing quadrants as predictive variables. Results : Sensory sensitivity significantly predicted novelty seeking and cooperativeness. The high frequency of sensory sensitivity behavior was related to high novelty seeking and low cooperativeness. Conclusion : This study demonstrated that sensory sensitivity contributes to the novelty seeking temperament and cooperativeness character in early childhood.

• Journal of Electrical Engineering and Technology
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• v.11 no.6
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• pp.1693-1699
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• 2016

The oscillation character of permanent magnetic motor is highly related to its slot-pole match. By calculating air-gap magnet field and radial electromagnetic force of 6-phase fractional-slot concentrated-winding permanent magnetic motor with slot-pole match of 48/44, 48/46, 48/50 and 48/52 under no load and load status, oscillation character of permanent magnetic motor is analyzed. A 20kW prototype with 48 slots and 44 poles is designed. With many sensors attaching to the corresponding parts, oscillatory acceleration is measured, and spectrum of oscillation frequency is recorded as well. The experiment results give proof to the analysis method for permanent magnetic motor oscillation in this paper.

• Journal of the Korean Society of Costume
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• v.58 no.7
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• pp.104-118
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• 2008

This study analyzed that how well the consumer recognize and what they feel about the characters which were applied in fashion brand. Four hundreds and forty two men and women who were living in Seoul and the metropolitan area were selected for this study and SPSS 12.0 was used for the technical statistics such as Frequency, Chi-Square Test and Correlation Analysis. The result of this study were as follows : 1. The consumer didn't well recognize the name of brand and the character which were provided from the brand. 2. There were included brands 'B' 'T' 'L' 'A' in the highly ranked cognition brand. A common feeling of these brands were 'a feeling of cute' and 'a feeling of intimacy'. 3. The consumer's feelings of character were categorized into 'a feeling of lute''a feeling of sexy' 'a feeling of soft as pap' 'a feeling of humorous'.

• The Research Journal of the Costume Culture
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• v.12 no.4
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• pp.628-637
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• 2004

The objectives of this study were to investigate the preference of characters for children＇s underwear and to find out the sensibility factors of preferred characters. It was also examined what sensibility factors of the characters were important for children＇s underwear as well as how characters were recognized as a factor in purchase of children＇s underwear. The research sample consisted of 300 Korean mothers who have children ranging from first to six grade in elementary school. Data were analyzed by Frequency analysis, ANOVA, and t-test. The results are as follows: According to the sensibility analysis, character image was classified into 3 factors, Pleasure, Riches, and Childish; Among three sensibility factors, Pleasure was the most important factor to affect the preferred character; National characters were more preferred than licensed characters.

• Korean Journal of Microbiology
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• v.22 no.4
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• pp.229-234
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• 1984

A modified E. coli trp operon, $trpL({\Delta}att)\;trpE^{FBR}$, was conjugally transfered into Klebsiella pneumoniae $KC_{100}\;(Phe^-,\;Tyr^-,\;Trp^-,\;Rif^r,\;Kam^r)$ by in vivo cloning using the hybrid plasmid $R_{6}K::$ Mucts 61 with a transfer frequency of $5.2{\times}10^{-7}$. Two K. pneumoniae transconjugants, $KUA_{701}\;and\;KUA_{702}$, were isolated. The characters of attenuation control-free and resistance to feedback-inhibition which are characteristics of donor C. coli trp operon were normally expressed in the $KUA_{701}.\;However,\;KUA_{702}$ retained only the feedback-inhibition resistant character. $Trp^+$ phenotype and ampicillin resistant character were completely stable in the transconjugants, but streptomycin resistant character was lost in the transconjugants.

• Proceedings of the KIEE Conference
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• 2002.11d
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• pp.246-248
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• 2002

This paper presents a high-frequency voltage source inverter for silent corona discharge ozonizer application, which is characterized by the power control based on pulse density modulation (PDM). The PDM inverter produces either a square -wave ac-voltage state or a zero-voltage state at its ac terminals to control the average output voltage under constant do voltage and operating frequency. This results in a wide range of power control in the silent corona discharge load with a strong nonlinear characteristics. And proposed addition circuit for maintain discharge on the center of the airgap. In this paper, schemed equivalent electric circuit of the discharge electrode for simulation. Finally, the effectiveness of this discharge tube character of silent corona ozonizer is investigated in the simulation results.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38A no.12
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• pp.983-990
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• 2013

In this paper, we proposed a Hangul type chipless RFID tag, which has better legibility than the conventional chipless RFID tag not only to a computer but also to a human. We made consonant model, vowel model and whole character model by WIPL tool and checked the applicability of Hangul type chipless RFID tag. We obtain the RCS pattern of each character by simulation. Finally, We classify the character from input data in noisy environment using a variance of the data.

• The Research Journal of the Costume Culture
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• v.17 no.1
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• pp.120-131
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• 2009

The purpose of this study was to suggest the repositioning strategy for Korean character/career women's wear brands by comparing them with masstige brands. The subjects were 240 Women in their twenties and early forties in Seoul and the metropolitan area. The data had been collected by self-administered questionnaire and analyzed by frequency and biplot. The results of the study were as follows: (1) The brand preference was 'Time'(33.3%), 'Michaa'(12.5%), and then 'Mine'(8.8%) in sequence; (2) For brand differentiation, the attributes of 'store image', 'comfortableness', 'brand reputation', and 'promotion' were found out to be important in sequence; (3) The national character/career brands were favored by theirs 'store image', 'quality', and 'design', while imported masstige brands were favored by theirs 'comfortableness', 'brand reputation', 'promotion', and 'perceived price'; (4) Among brands, 'Time' had been highly evaluated, but comparatively showed weakness on 'perceived price', 'comfortableness', and 'promotion'.