• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.39 no.11
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• pp.1077-1085
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• 2011

Various stakeholder's expectations and constraints are to be efficiently resolved into a program consensus prior to the beginning of its substantial design processes. This study focuses on the analysis of the stakeholder's expectations in determining the design requirements at the initial stage of space exploration programs including Naro launcher and currently on-going KSLV-II program. Naro program seems to unilaterally account for the government expectations of accelerating program phase speed without making any efforts to converge various expectations from related sectors. The planning of Naro launcher is also found lack of the concept of operations (ConOps), which is of critical importance by envisaging the operational applications of end products. Similarities are found in KSLV-II program regarding the lack of implementation for stakeholder's expectations. Moreover, the government plan for KSLV-II disclosed without considering all expectations and other comments. The increase in design conflicts and program uncertainties would be unavoidable, if the government plan for KSLV-II would be insisted. It is required to modify the government plan and to establish the ConOps with the convergence of stakeholder's expectations at this early stage of the program.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.06a
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• pp.262-267
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• 2007

퍼지 ART 알고리즘에서 경계 변수는 패턴들을 클러스터링하는데 있어서 반지름 값이 되며 임의의 패턴과 저장된 패턴과의 불일치(mismatch) 허용도를 결정한다. 이 경계 변수가 크면 입력 벡터와 기대 벡터 사이에 약간의 차이가 있어도 새로운 카테고리(category)로 분류하게 된다. 반대로 경계 변수가 작으면 입력 벡터와 기대 벡터 사이에 많은 차이가 있더라도 유사성이 인정되어 입력 벡터들을 대략적으로 분류한다. 따라서 영상 인식에 적용하기 위해서는 경험적으로 경계 변수를 설정해야 단점이 있다. 그리고 연결 가중치를 조정하는 과정에서 학습률의 설정에 따라 저장된 패턴들의 정보들이 손실되는 경우가 발생하여 인식율을 저하시킨다. 본 논문에서는 퍼지 ART 알고리즘의 문제점을 개선하기 위하여 퍼지 논리 접속 연산자를 이용하여 경계 변수를 동적으로 조정하고 저장 패턴들과 학습 패턴간의 실제적인 왜곡 정도를 충분히 고려하여 승자 노드로 선택된 빈도수를 학습률로 설정하여 가중치 조정에 적용한 개선된 퍼지 ART 알고리즘을 제안하였다. 제안된 방법의 성능을 확인하기 위해서 실제 영문 명함에서 추출한 영문자들을 대상으로 실험한 결과, 기존의 ART1과 ART2 알고리즘이나 퍼지 ART 알고리즘보다 클러스터의 수가 적게 생성되었고 인식 성능도 기존의 방법들보다 우수한 성능이 있음을 확인하였다.

• Journal of the Korean Data and Information Science Society
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• v.20 no.2
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• pp.273-281
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• 2009

The gap(P-E)-model is based on the disconfirmation paradigm that tries to under stand the effect of the gap between before purchase expectations and after purchase perceptions of the product performance on dependent variables such as customer satis-faction. But Bhote proposed multiply($I{\times}P$)-model instead of gap(P-E)-model in 1998. This paper is focused on Bhote's multiply($I{\times}P$)-model in food service industry. The purpose of this research is to test whether DINESERV's 5-dimensions by multiply($I{\times}P$) model fits in explaining satisfaction, revisit intention and customer loyalty. The F-value of regression model was used to test the fitness of regression model of the multiply($I{\times}P$)-model. Through analysis, it was found that the multiply($I{\times}P$)-model fits.

• The Research Journal of the Costume Culture
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• v.19 no.2
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• pp.269-282
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• 2011

The purpose of this study was to compare consumer satisfaction by analyzing importance on characteristics of clothing, performance, and their inconsistency between Korea and the United States. The data was collected by using a survey based on three sages of pre-tests, and main survey conducted in The U.S and Korea. Data of 520 participants from each country (260 males and 260 females) was used. The results of this study is as follows: First, both consumers in Korea and U.S. showed five factors such as aesthetics/trend, body shape, practical use/wearing, care, and distorted. In performance factor of Korean students was consisted of wearing/care, aesthetics, body shape, distorted, and trend/symbolism while that of American students was consisted of wearing, aesthetics, body shape, trend/image factor, and distorted. Second, regarding importance rate, aesthetics/trend, practical use/wearing, care, and distorted affected satisfaction of Korean students whereas aesthetics/trend factor affected satisfaction of American students. Regarding performance, body shape factor, distorted, trend/symbolic affected satisfaction of Korean students whereas trend/image affected satisfaction of American students. Third, satisfaction of Korean and American students influenced re-purchase intention and positive word-of-mouth, so proved to be the result variable of satisfaction. By understanding the differences between consumers in Korea and U.S., apparel importers and exporters may develop effective business strategies to better fulfill their customers' needs and desires, and therefore, increase their profit.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2009.06a
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• pp.48-48
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• 2009

최근 나노광전소자 응용에 큰 관심을 받는 물질인 산화물 나노선은 앞으로 불어 올 나노소재 시대를 여는 선두 물질이다. 이러한 산화물 나노선 가운데 가장 큰 관심을 받는 물질로는 산화아연 나노선을 들 수 있다. 삼화아연 나노선은 상온에서 큰 엑시톤 결합에너지 및 큰 밴드갭을 가지고 있으며 투명성 및 소자구동시 안정성을 지니고 있어 그 응용이 기대된다. 하지만 이러한 나노선을 이용한 광전소자 응용은 bottom-up 방식을 기초로 한 대면적 소자제작이 어렵다. 이러한 bottom-up 방식의 나노소자 제작에서 필요한 나노선 성장기술은 금속 catalyst 없이 대면적 성장, 나노선 수직어레이, 나노선의 고온성장, 기판 사이에 발생하는 자발적 계면층 제거 등으로 대표된다. 또한 나노선의 결정성 및 광특성 향상을 위해서는 고온성장이 불가피한데, 실리콘 기판과 같이 격자상수 불일치도가 큰 기판에서는 나노선 성장이 이루어지지 않고 다시 탈착되어 구조물이 성장되지 않는다. 본 연구에서는 선택적 삼원계 단결정 씨앗층을 이용하여 길이/직경 비가 매우 향상된 MgZnO 나노와이어를 interfacial layer 없이 수직으로 고온에서 성장하여 산화물 전계방출 에미터로서의 가능성을 확인하였다.

• The Journal of the Korea Contents Association
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• v.15 no.1
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• pp.105-113
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• 2015

This paper investigated Korean popular entertainment (K-entertainment, hereafter) tourism using theory of intention-behavior. Dividing the sample of international visitors to Seoul into the groups of "inclined actors", "inclined abstainers", and "disinclined abstainers," we examined the factors affecting such a division. The results showed that between the inclined actors and the inclined abstainers, there was no significant difference in the years of exposure to K-entertainment contents or the frequency of going to K-entertainment performance in the past. In contrast, the inclined actors were found to have a greater level of knowledge, ability, and cooperation compared to the inclined abstainers. In addition, we found that the K-entertainment performance in Korea was perceived as a substitute, rather than a complement to the performance held elsewhere in the world. Our findings suggest that interests in K-entertainment alone are not sufficient to drive the international visitors' intention to the action of attending K-entertainment performance during their visit to Korea. To this end, this study implies that it is necessary to design attractive tourism packages that include K-entertainment performance.

• Journal of the Korean Society of Clothing and Textiles
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• v.42 no.2
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• pp.311-326
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• 2018

The satisfaction of wearing an outfit in daily life can lead to the attitude toward the clothes and further the brand image and repeat purchases; however, satisfaction generated from the moment the outfit was purchased is only temporary. Therefore, it would be necessary to study the antecedent variables that precede daily outfit satisfaction. In the current study, to understand the antecedent variables that influence the daily outfit satisfaction of consumers, in-depth interviews were conducted on thirteen women in their 20s and 30s. The results showed that peoples' outfit satisfaction was dependent on a comparison between their prior expectation and the performance of the outfit based on expectation-performance disconfirmation. The outfit performance was evaluated by themselves or others. Simultaneously, it was found that the others' opinion on the clothes and surroundings influence daily outfit satisfaction. This research helps deepen the understanding on the individual and social influential factors of the temporary satisfaction from purchase to the satisfaction of actually using clothes. This result ultimately intensifies the understanding on the consumption and evaluation of clothes in the whole life cycle of clothing products from purchase to disposal.

• Therapeutic Science for Rehabilitation
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• v.12 no.1
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• pp.79-92
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• 2023

Objective : This study aimed to assess the reliability of a three-dimensional (3D) motion analysis program for measuring the range of motion (ROM) of wrist and finger joints. Methods : The study recruited 50 people who had no restrictions on wrist and finger movements, understood the purpose of this study, and agreed to participate. Using a goniometer and a 3D motion analysis program, a total of 11 wrist and finger ROM were measured once each. To measure the reliability of the 3D motion analysis program, the degree of agreement and inconsistency of the measured values were compared. Results : Analysis of the degree of agreement of the measured values revealed that 38 out of 44 items showed a very high degree of agreement. Regarding analysis of inconsistency in the measured values, inconsistencies were found in three items. Conclusion : The results of this study confirmed that the ROM of the joint could be measured using the 3D motion analysis program applied in this study. In addition, it might be expected that the 3D motion analysis program would be used in various clinical fields owing to the advantages of measurement convenience and accuracy.

• Journal of KIISE
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• v.43 no.11
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• pp.1210-1215
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• 2016

Readership of online newspapers has grown with the proliferation of smart devices. However, fierce competition between Internet newspaper companies has resulted in a large increase in the number of hoax articles. Hoax articles are those where the title does not convey the content of the main story, and this gives readers the wrong information about the contents. We note that the hoax articles have certain characteristics, such as unnecessary celebrity quotations, mismatch in the title and content, or incomplete sentences. Based on these, we extract and validate features to identify hoax articles. We build a large-scale training dataset by analyzing text keywords in replies to articles and thus extracted five effective features. We evaluate the performance of the support vector machine classifier on the extracted features, and a 92% accuracy is observed in our validation set. In addition, we also present a selective bigram model to measure the consistency between the title and content, which can be effectively used to analyze short texts in general.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.4
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• pp.55-64
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• 2014

While small and medium-sized companies are suffering from a shortage of workers as a result of social tendency to avoid those companies, college graduates still prefer large companies or governmental positions, which consequently results in inconsistencies in the demand and supply of work forces. The gap between them is getting so bad that employment difficulties are exacerbating. Accordingly this study tries to search for potential employee's expected value factors which make people select small and medium companies not big companies. A survey was conducted from October 1 to october 30, 2012 with university students in the Seoul metropolitan area. a total of 350 questionnaires were distributed and 335 were collected. of these, 332 questionnaires were used for data analyses excluding questionnaires with missing values. Data was analyzed by frequency, descriptive factor, reliability, and regression with SPSS win 18.0 program The result of this study were as follows. A factor analysis extracted four factors comprising small and medium companies, which we named career(factor 1), working environment(factor 2), working achievement(factor 3), job security (factor 4). This study showed that small and medium companies' preference were affected by the career, working environment, job security, corporate reputation, salary.