• 가정과삶의질연구
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• 제28권4호
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• pp.127-138
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• 2010

This study examines the consumer behavior towards service satisfaction and loyalty in the wedding service market when differentiated services were provided through a market segmentation that includes products, prices, and channels for service choices. This study uses the questionnaire research method to compare the wedding service consumer satisfaction between Korea and Japan. As for married couples, the convenience of transportation and name-recognition were the most important considerations among Koreans when it comes to choosing a place for wedding ceremonies. Meanwhile, Japanese counterparts considered reasonable prices and wedding services quality as the most important factors. In terms of the level of satisfaction in services provided by wedding halls, Korean married couples were found to be more satisfied than Japanese counterparts. Second, the impact of the level of satisfaction with wedding services on consumer loyalty was analyzed. It was found that name-recognition was an important influencing factor among both Koreans and Japanese. An increased satisfaction with name-recognition, resulted in higher loyalty by individuals to wedding halls. In terms of showing loyalty to wedding halls, Koreans were found to be more influenced by name-recognition than the Japanese. Third, there was no significant difference found in japan in terms of the impact of the level of satisfaction with wedding services loyalty.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권4호
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• pp.1419-1436
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• 2020

For an energy harvesting sensor network, when the network lifetime is not the only primary goal, maximizing the network performance under environmental energy harvesting becomes a more critical issue. However, clustering protocols that aim at providing maximum information throughput have not been thoroughly explored in Energy Harvesting Wireless Sensor Networks (EH-WSNs). In this paper, clustering protocols are studied for maximizing the data transmission in the whole network. Based on a long short-term memory (LSTM) energy predictor and node energy consumption and supplement models, an uneven clustering protocol is proposed where the cluster head selection and cluster size control are thoroughly designed for this purpose. Simulations and results verify that the proposed scheme can outperform some classic schemes by having more data packets received by the cluster heads (CHs) and the base station (BS) under these energy constraints. The outcomes of this paper also provide some insights for choosing clustering routing protocols in EH-WSNs, by exploiting the factors such as uneven clustering size, number of clusters, multiple CHs, multihop routing strategy, and energy supplementing period.

• Journal of Electrical Engineering and Technology
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• 제12권6호
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• pp.2118-2126
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• 2017

The large-scale power system blackouts have indicated that conventional protection relays that based on local signals cannot fit for modern power grids with complicated setting or heavily loaded-flow transfer. In order to accurately detect various faulted lines and improve the fault-tolerance of wide-area protection, a novel multi-section weighed fault matching and detecting algorithm is proposed. The real protection vector (RPV) and expected section protection vectors (ESPVs) for five fault sections are constructed respectively. The function of multi-section weighed fault matching is established to calculate the section fault matching degrees between RPV and five ESPVs. Then the fault degree of protected line based on five section fault degrees can be obtained. Two fault detecting criterions are given to support the higher accuracy rate of detecting fault. With the enumerating method, the simulation tests illustrate the correctness and fault-tolerance of proposed algorithm. It can reach the target of 100% accuracy rate under 5 bits error of wide-area protections. The influence factors of fault-tolerance are analyzed, which include the choosing of wide-area protections, as well as the topological structures of power grid and fault threshold.

• 한국생활과학회지
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• 제15권1호
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• pp.129-139
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• 2006

The purpose of this study is to compare the hairstyles between Korean and Australian women, who have different individual hair characteristics, social backgrounds, and culture from each other. Data were collected through a survey of 208 Australian females and 392 Koreans. Frequency analysis, t-test, and two-way ANOVA were used to analyze the data. The results are as follows: Korean and Australian women maintain a hairstyle for six months or less in most of the cases. They preferred a hairstyle with bang, and the elderly especially a shorter hair length. Choosing their hairstyles depended on such factors as hair length, dyeing, form of face, harmony with clothing, and social status. There was no difference, however, in a preferred hair length. Korean women possessed brown and black hair colors in a descending order, whereas Australians light blonde and brown in a descending order as well. There was a big difference in the preference for a permanent wave. Korean women preferred to give a volume or curl to their hair, while Australians wanted to have a straight hair. According to the study on a hairstyle behavior, it was found that there were differences in fashion and individuality between two countries and also in dependency among age groups, whereas no differences existed in beauty.

• 한국항공운항학회지
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• 제23권2호
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• pp.40-50
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• 2015

This study deals with transfer passengers in hub airports. The research objective is to derive measures for transfer passenger quantity enhancement at Incheon International Airport by applying Analytic Hierarchy Process. In pursuing the above objective, this study conducted a survey to evaluate various selection criteria for choosing transfer airports and ranked attributes in weight order with Analytic Hierarchy Process. Furthermore, based on the trend analysis of Incheon International Airport's transfer passenger movement, this paper analysed main transit routes of Incheon International Airports against competitor airports among the region. The main result found from the study is flight frequency, ticket price and connecting hour were the most important 3 factors when people choose transit airports. Therefore, it is recommended government, airport authority and airlines to cooperate closely to meet the transfer passengers' needs on frequency, price and transit hour of flights.

• 한국국방경영분석학회지
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• 제36권2호
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• pp.85-106
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• 2010

최근 정부가 공공부문에 대해 저비용, 고효율을 지속적으로 요구해 옴에 따라 국방부문도 효율성 개선을 위한 노력을 하고 있다. 그러나 군수부대의 효율적 운영에 대한 계량적 분석이 없는 실정으로, 본 연구는 군수부대의 효율적 경영 여부를 평가하기 위한 방법을 제시하고자 한다. 이를 위해 기존 선행연구 고찰을 통해 보급부대의 효율성 평가에 적절한 변수를 선정하여 제시하고, 공공부문 효율성 측정에 유용한 DEA(Data Envelopment Analysis)기법을 활용하여, 야전 보급부대를 대상으로 효율성을 평가한 후 비효율적 조직의 효율성 개선을 위한 방안을 제시하고자 한다.

• 한국관광식음료학회지:관광식음료경영연구
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• 제13권2호
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• pp.91-117
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• 2002

foreigners preferred wholesome and fresh food and made much of. However the satisfaction didn't live up to the expectation. Second, there was no difference in both gender and age. It showed that in the gradually developing international dining-out industry, regardless of gender or age, the taste of food depended on the individual preference. Third, there was some difference in the preference factors according to intent of visiting Korea. The preference of people recommending some manu to someone when he or she visits Korea influenced the visiting person's preference about the Korean food manu. Forth, there was some difference in both individual importance in choosing the manu and satisfaction after experiencing the manu. It is the very challenge to be dealt with when the Korean traditional food tries to accomplish globalization. As a result, to accomplish globalization of not only the hotel Korean food manu but also the Korean traditional food needs to rapidly improve wholesomeness and freshness of the food, which the foreigners consider the most important but complain about. The fact was well shown in the test of the manu preference. When the Korean traditional food goes ahead in the world, it is desirable to sustain and develop the existing manu of Korean food. However, to inform the world of excellency of the Korean traditional food should be a constant study or develop a new manu.

• 한국지열·수열에너지학회논문집
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• 제14권3호
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• pp.1-7
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• 2018

In this paper, we designed a seasonal geothermal storage system and studied the applicability in the alluvial aquifer. We conducted a basic survey to apply this system to greenhouses actually operated in the Geum river basin alluvial aquifer. After choosing a potential area through electrical resistivity survey, the system parameters were set using drilling survey and pumping test result. We installed a system based on the factors, and operated for about 9 months. As a result, high temperature water(injection temperature $30^{\circ}C$) was stored at 22.5 Mcal ($1,609m^3$) for 3 months in cooling operation and 125 Mcal ($16,960m^3$) of low temperature water (injection temperature $7^{\circ}C$) were stored for 6 months in the remaining heating operation.

• Journal of Communications and Networks
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• 제15권5호
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• pp.527-537
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• 2013

Improving resource utilization has been a hot issue in heterogeneous wireless networks (HWNs). This paper proposes a radio resource management (RRM) method based on access proportion optimization. By considering two or more wireless networks in overlapping regions, users in these regions must select one of the networks to access when they engage in calls. Hence, the proportion of service arrival rate that accesses each network in the overlapping region can be treated as an optimized factor for the performance analysis of HWNs. Moreover, this study considers user mobility as an important factor that affects the performance of HWNs, and it is reflected by the handoff rate. The objective of this study is to maximize the total throughput of HWNs by choosing the most appropriate factors. The total throughput of HWNs can be derived on the basis of a Markov model, which is determined by the handoff rate analysis and distribution of service arrival rate in each network. The objective problem can actually be expressed as an optimization problem. Considering the convexity of the objective function, the optimization problem can be solved using the subgradient approach. Finally, an RRM optimization scheme for HWNs is proposed. The simulation results show that the proposed scheme can effectively enhance the throughput of HWNs, i.e., improve the radio resource utilization.

• 한국융합학회논문지
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• 제9권7호
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• pp.293-300
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• 2018

청소년기 운동선수들에게 다양한 진로 선택의 기회를 실현시켜주기 위해서는 가장 먼저 학생 자신의 적성에 맞는 직업을 선택할 수 있도록 도움을 주는 것이다. 청소년기 운동선수들은 일반적인 청소년들과 달리 다양한 진로를 선택하고 이를 실현하는데 사용될 수 있는 절대적인 시간이 부족한 것이 현실이다. 따라서 청소년기 운동선수들에게는 자신의 적성에 맞는 직업군 별로 차별화되고 특성화된 융합적 학습자료가 필요한 것이다. 이들 직업군 별로 특성화된 학습자료는 가장 적은 시간의 투입으로 가장 큰 교육효과를 나타낼 수 있는 방법이기에 청소년기 운동선수들의 다양한 진로 선택의 기회를 실현시켜주기 위해서라도 꼭 필요한 정보로써의 활용 가치가 높다고 할 수 있다.