• Culinary science and hospitality research
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• v.22 no.6
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• pp.87-97
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• 2016

The purpose of this study was to explore the effects of job attitudes from the professional restaurant service organization on customer orientation. Using a self-administered questionnaire, data was collected from service employees of professional restaurants. Survey was conducted 20 days from October 11, 2015 to October 30, 2015. Total of 200 questionnaire were distributed and 185 samples were collected and used in the data analysis after excluding 15 unfaithfulness answers. SPSS 18.0 statistical program were used to analyze samples. The result indicated significant and positive impacts between job attitude and its sub-factors(i.e., job satisfaction, organizational commitment) on customer orientation.

• Journal of the Korean Home Economics Association
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• v.33 no.6
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• pp.43-59
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• 1995

the purposes of this study were to ecamine mother's perception for the quality criteria of day care center, and to estimate the differences of these according to the demographic characteristics, For these purposes, the data were collected by using questionnaire distributed to 568 mothers with children enrolled in day care center be located in Taegu. The data were analyzed by frequency, percentage, F-test, Scheffe test, regression analysis. The major findings of this research were as follows : 1. Generally, there were significant differences in the mother's perception for the quality criteria of day care center according to the demographic characteristics. 2. Among the independent variables, mother's educational level had significant influences on the all domains of mother's perception for the quality criteria of day care center.

• Proceedings of the KSR Conference
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• 2004.06a
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• pp.303-308
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• 2004

It is recently reported that the importance of environmental impact assessment(EIA) about groundwater outflow problems is beingy raised in the case of tunnel excavation during railroad construction. The EIA about groundwater outflow into railroad tunnel is generally performed using the results of numerical analysis embodied through groundwater flow modeling program like MODFLOW. The basic data for this modeling include (1) the geological and hydrogeological investigation data along the planned block of tunnel excavation, (2) total amount of outflowed groundwater during tunnel excavation, and (3) the status of groundwater level fluctuation in the water-supply wells distributed in the planned block of tunnel excavation. In this study, the authors analyzed the cases of the computational modeling about groundwater outflow in three planned blocks of railroad tunnel, and suggest the environmental impact factors and mitigation plan during EIA of tunnel excavation in railroad construction.

• Journal of the Korea Society for Simulation
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• v.5 no.2
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• pp.59-72
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• 1996

The purpose of this study is to make an improvement to the batch-means method, which is a procedure to construct a confidence interval(c.i.) for the steady-state process mean of a stationary simulation output process. In the batch-means method, the data in the output process are grouped into batches. The sequence of means of the data included in individual batches is called a batch-menas process and can be treated as an independently and identically distributed set of variables if each batch includes sufficiently large number of observations. The traditional batch-means method, therefore, uses a batch size as large as possible in order to. destroy the autocovariance remaining in the batch-means process. The c.i. prodedure developed and empirically tested in this study uses a small batch size which can be well fitted by a simple ARMA model, and then utilizes the dependence structure in the fitted model to correct for bias in the variance estimator of the sample mean.

• The Research Journal of the Costume Culture
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• v.11 no.3
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• pp.331-339
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• 2003

This study first defines the fashion convention industry as an idea that includes international conventions, exhibitions and collections mainly dealing with fashion (fabric·material, clothing·fashion, and machinery·equipment). It then infers constituents of the industry based on preceding studies on service quality and satisfaction, and analyzes their importance and the structural relation between constituent performance, satisfaction and ex post behaviour. Also it analyzes perception difference of the organizer and participators on constituent importance, performance, and satisfaction. In the survey, a total of 500 questionnaires were distributed to the organizers and participants of 2001 Seoul Fashion Week, and among them, 259 questionnaires from the participants and 18 from the organizers were used as data for the demonstrative analysis. LISREL 8 program and SPSS WIN V. 8.0 were used for a statistical process of collected data.

• Journal of the Korean Data and Information Science Society
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• v.25 no.4
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• pp.915-920
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• 2014

We consider a continuous time surplus process with investments the sizes of which are independent and identically distributed. It is assumed that an investment of the surplus to other business is made, if and only if the surplus reaches a given sufficient level. We establish an integro-differential equation for the distribution function of the surplus and solve the equation to obtain the moment generating function for the stationary distribution of the surplus. As a consequence, we obtain the first and second moments of the level of the surplus in an infinite horizon.

• Journal of the Korean Institute of Telematics and Electronics C
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• v.34C no.7
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• pp.51-60
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• 1997

Prototype based methods are commonly used in cluster analysis and the results may be highly dependent on the prototype used. In this paper, we propose a fuzzy clustering method that involves adaptively expanding convex polytopes. Thus, the dependency on the use of prototypes can be eliminated. The proposed method makes it possible to effectively represent an arbitrarily distributed data set without a priori knowledge of the number of clusters in the data set. Specifically, nonlinear membership functions are utilized to determine whether a new cluster is created or which vertex of the cluster should be expanded. For this, the membership function of a new vertex is assigned according to not only a distance measure between an incoming pattern vector and a current vertex, but also the amount how much the current vertex has been modified. Therefore, cluster expansion can be only allowed for one cluster per incoming pattern. Several experimental results are given to show the validity of our mehtod.

• International Commerce and Information Review
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• v.11 no.1
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• pp.117-137
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• 2009

Although the third-party logistics are activated and researched in many ways in the advanced countries, China is still on the beginning phase of the third-party logistics and has announced few studies on them. Especially, the study on factors affecting formation for partnership between shippers and third-party logistics providers has never been announced in China, and few empirical studies on them have been done. In order to verify established hypothesis, the empirical analysis is conducted as follows. Totally 500 copies of questionnaire were drawn up and distributed. Amid them 160 copies were collected, finally 155 copies were used for this study as valid samples. The questionnaire used nominal scale and 5 Likert scale. Statistics of collected data were under the data coding process, and analyzed by applying SEM program.

• Journal of Industrial Technology
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• v.15
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• pp.113-122
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• 1995

By integrating WDM to OPS unit which plays an important role for the reliability of CPN, we made it possible to provide CATV, VOD, and high-speed data services simultaneously and to meet the requirements for new services in the future. For the design of optimal system, the link analysis of power budget has been performed. Also, the prototyped system has been tested with STM-1 level signals to confirm functions such as transmission, distribution, and protection. The results proved that when occurred out-of-order or recovery of ONU, the system did the pertinent switching with minimum loss for high-speed data services. Also for video distribution services, the system has distributed STM-1 level signals successfully.

• IE interfaces
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• v.21 no.2
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• pp.237-246
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• 2008

In today's competitive global environment, technological innovation is an important issue. Many countries are devising national level strategies to further strengthen industrial capacity in support of innovative companies. South Korea is no exception, and multiple strategies are in place to aid innovative development in the private sector. This study postulates that such national level strategies are applied differently depending on the innovation goal pursued by the service sector in Korea. We use data mining methods to test such research hypothesis. Factor analysis is used for clustering of various service companies, while association rule is used in finding the relationship per each cluster. The results show that national level strategies are underutilized and unequally distributed. This may be attributed to the disparity between the demand and needs of the private sector and the opinion of the government, which lead to underutilized and indistinguishable strategies.