• 한국철도학회논문집
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• 제7권4호
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• pp.296-301
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• 2004

This paper addresses an analysis for a railway data transmission protocol-Ethernet based data transmission between the CTC(Centralized Traffic Control System) and the SCADA(Supervisory Control and Data Acquisition) system. Fame error rates of the data transmissions are calculated and compared for the two cases that the CTC/SCADA has an extra data transmission error control(CRCI6) besides the inherent error control of the Ethernet(CRC32), and that the CTC/SCADA has no extra data transmission error control. With simulation results it has been verified that the extra data transmission error control(CRC16) contributes to lowering the frame error rate.

• 한국의류학회지
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• 제32권9호
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• pp.1467-1477
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• 2008

This research examined how customers evaluate fashion brand collaborations in speculating the collaboration factors, product, model, and designer. Respondents evaluated 8 different collaborate case cards from 1 to 8, presenting a certain fashion brand, who had recently teamed up with various kinds of product companies for collaboration. Product was found as the most important factor in evaluating the collaboration case cards, analyzed through Conjoint Analysis. Respondents segmented additionally by clothing involvement valued different collaboration factors; products for the high clothing involvement group and messenger and designer for the low clothing involvement group. All the segments and respondents chose the best the card presenting blue jeans, Mr. Chang, and B.S. Choi, as similarity for products, fame for mdoel, and similarity for designer, respectively.

• 한국멀티미디어학회논문지
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• 제22권3호
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• pp.395-402
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• 2019

Star characters play a key role in the background of contents that secure global competitiveness. In this study, we study the growth factors and transitional forms of Nintendo Super Mario Bros. and suggest the direction of nurturing Korean star characters. As a result of the analysis of Super Mario Bros., it was possible to derive the growth factors of Originality, repeatability, Continuity, Pertain, and Star Fame and the transition result of step development method. Robot Taekwon V was presented as a reference model while Korean game characters with global competitiveness were excavated. Robot Taekwon V, which combines the features of friendly, unique, symbolism, and narrative, could be used to present a development model of the type of jump development. In the jump development model, character development and Upbringing, diversification of genre, pioneering of new markets combined with new technology, and fostering of characters through linkage with other industries were presented.

• 한국응용과학기술학회지
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• 제36권1호
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• pp.324-332
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• 2019

한국과 인도네시아를 포함한 대부분의 국가는 온실가스 감축을 위해 바이오디젤 같은 바이오연료 보급에 대한 강력한 정책을 추진하고 있다. 하지만, 바이오디젤 보급 확대를 위해서는 원료 부족 문제를 먼저 해결해야 한다. 본 연구에서는 원료 공급 안정성을 개선하고 바이오디젤 생산 가격을 낮추기 위해 비식용이면서 동시에 단위면적당 생산성이 높은 인도네시아 열대작물(R. Trisperma) 오일의 바이오디젤 생산 가능성을 조사하였다. 수확기간이 다른 두 종류의 오일은 많은 불순물과 높은 유리지방산 함량을 가지고 있어 효율적인 바이오디젤 생산을 위해, 에스테르화 반응과 전이에스테르화 반응을 실시하였다. 오일은 반응을 진행하기 앞서 여과와 수분제거 과정을 통해 반응의 효율을 높이고자 하였다. 에스테르화 반응은 불균질계 산 촉매인 Amberlyst-15를 사용하였으며, 반응 전 오일들의 산가는 각각 41, 17 mg KOH / g이었으나, 에스테르화 반응 후 3.7, 1.8 mg KOH/g으로 약 90% 이상의 전환율을 보이며 유리지방산 함량을 2%이하로 감소시켰다. 이후 전이에스테르화 반응은 KOH를 염기 촉매로 사용하여 바이오디젤 합성 실험을 진행하였다. 생성된 바이오디젤은 약 93%의 FAME 함량을 나타냈으며, 총 글리세롤의 함량은 0.43%으로 제품 규격(FAME 96.5%, 총 글리세롤 0.24%)에는 미달되었다. 이는 지방산 조성 분석 결과 일반적으로 관찰되지 않는 특이 지방산인 ${\alpha}$-Eleostearic acid가 10.7~33.4% 포함되어 나타나는 특성으로 판단되며, 추가 반응 최적화 및 분리정제 연구 진행으로 연료품질 규격 달성이 필요한 것으로 나타났다. 기존에 활용되지 못하던 비식용 원료로부터 바이오디젤 생산 기술을 확보할 경우 바이오디젤 보급 확대를 위한 안정적 원료 공급에 기여할 것으로 판단된다.

• 한국병원경영학회지
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• 제3권1호
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• pp.165-191
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• 1998

The objectives of this research are 1) to identify different motivation of choice for each National University hospitals 2) to examine the factors influencing the patients' satisfaction, 3) and to investigate that the patients' satisfaction effects the hospital re-choice and recommendation on seven National University's hospitals. The data for this analysis were collected by questionnaire survey. Totally 852 interviews were conducted. The major statistical methods used for the analysis are paired t-test, factor analysis, x2-test, and multiple regression. We find that satisfaction level is a function of not only the quality of medical service but also non-medical service. The main results of research are follows: 1) The most important factor of hospital choices is 'the trust and fame as National University hospitals'; 2) Overall satisfaction of inpatients is turned to be influenced by the doctor's services, nurse's services, environment, and convenience. And overall satisfaction of outpatients is also found to be influenced by the waiting time for lab test; 3) Highly satisfied patients preferred to revisit and to recommend to others.

• Bulletin of the Korean Chemical Society
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• 제34권10호
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• pp.3059-3064
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• 2013

In this study transesterification of Triglycerides (TG) from Jatropha curcas oil (JCO) with methanol for production of biodiesel was investigated over cerium impregnated ZSM-5 catalysts. NaZSM-5 was synthesized in an alkaline medium and impregnated with cerium oxide by wet method using cerium nitrate as a source for cerium. They were characterized by X-ray diffraction (XRD), Thermogravimeteric analysis (TGA), $CO_2$-temperature programmed desorption, and $N_2$ adsorption/desorption analysis. XRD analysis showed decrease in intensity of the patterns with the increase in the ceria loading but crystallization of ceria to larger size is an evident for 10 and 15% loading. The optimal yield of transesterification process was found to be 90% under the following conditions: oil to methanol molar ratio: 1:12; temperature: $60^{\circ}C$; time: 1 h; catalyst: 5 wt %. Here the yield of fatty acid methyl ester (FAME) was calculated through $^1H$ NMR analysis. The investigation on catalyst loading, temperature, time and reusability illustrated that these ceria impregnated NaZSM-5's were found to be selective, recyclable and could yield biodiesel at low temperature with low methanol to oil ratio due to the presence of both Lewis and Bronsted basicity. Hence, from the above study it is concluded that ceria impregnated ZSM-5 could be recognized as a potential catalysts for biodiesel production in industrial processes.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2009년도 정보 및 제어 심포지움 논문집
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• pp.25-27
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• 2009

This paper presents the stereoscopic conversion of flame images. The stereoscopic conversion is a technology that generates left and right images from a monoscopic image. Even though many conversion methods have been introduced and commercialized so far, the processing of flame images is relatively few. Such conventional methods are effectively used either real-time or off-line. However, the application of such schemes to special-effect images such as flame is hard to be applied. The proposed method is designed to convert a flame image into a stereoscopic image. Depth map of flame regions are produced based on the analysis of color models of flames. Experimental results tested on diverse flame image sets validates the effectiveness of the proposed method.

• International journal of advanced smart convergence
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• 제7권2호
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• pp.67-72
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• 2018

On the internal based search, the big data inference, which is failed in the president's election in the United States of America in 2016, is failed, because the prediction method is used on the base of the searching numerical value of a candidate for the presidency. Also the Flu Trend service is opened by the Google in 2008. But the Google was embarrassed for the fame's failure for the killing flu prediction system in 2011 and the prediction of presidential election in 2016. In this paper, using the virtual vote algorithm for virtual election and data mining method, the election prediction algorithm is proposed and unpacked. And also the WEKA DB is unpacked. Especially in this paper, using the K means algorithm and XEDOS tools, the prediction of election results is unpacked efficiently. Also using the analysis of the WEKA DB, the smart election prediction system is proposed in this paper.

• 가정과삶의질연구
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• 제17권2호
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• pp.157-172
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• 1999

The Purpose of this study is to clarify what a difference the individual family value and relationship make on the inheritance consciousness by focussing on right succeed property among the inheritances rights of family. Questionnaire were distributed to about 450 married person with children over 40 year and among them 384 cases are used in final analysis. Inheritance consciousness of the Korea family shows that the property inheritances to greatly different from the inheritance the family head rituals according to consciousness of the individuals. That is to say the succession of the property is decided by inheritances of the individuals where-as these of the family head and rituals are done by the family norm. such results tend to be made due th the fact that Koreans think of a duty to father a son and make him succeed th the heat of the family on the basis of the strong blood tie of the family that Koreans think t important to keep their family fame and to contain the fam ly existence I. e. they respect their patriarchal system.

• 복식
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• 제55권4호
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• pp.16-28
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• 2005

The purposes of this study were to understand the buying patterns of adult women according to impulse shopping, benefits sought, and selecting information sources. This subjects of this study were 509 adult women from the age 20's to the age of 40's. This data were analyzed by using factor analysis multi regression analysis, analysis of variance, Scheffe' test. The results of this study were outlined as follow: 1. Differences among ages (the 20's, the 30's, and the 40's) in impulse shopping were as follow: The 30's bought more cosmetics to change their mood compared to the 20's or the 40's, and the 20's and the 30's bought more cosmetics matching to their images compared to the 40's. 2. From the aspects of benefits sought, the 20's and the 30's were more seriously consider the fame of brands compared to the 40's, showing they were different from the 40's. 3. From the aspects of selecting information sources about cosmetics, the 20's were more actively utilizing both human information sources and non-human information sources compared to the 30's and the 40's.