• The Journal of the Korea Contents Association
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• v.21 no.12
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• pp.348-362
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• 2021

Real estate investment behavior factors are divided into profitability, risks (stability), liquidity, and regulation (deregulation) factors. The sub-attributes of the investment behavior factors are generally formative indicators. Unlike reflection indicators, formative indicators can identify not only the influence of investment behavior factors on dependent variables, but also the influence of sub-attributes on dependent variables. Therefore, theoretical and practical needs of comparing the influences of factors and sub-attributes on dependent variables has been suggested. In this study, in order to provide information that help marketing for lots shopping building, both the causality between investment behavior factors and investment intention and the causality between sub-attributes and investment intention were comparatively studied for each of the three investor groups: the whole group, the group with high investment intention and the group with low investment intention. For this purpose, a survey and multiple regression analyses were conducted on 237 existing investors in the customer DB of a company that have been developing and selling lots shopping building in the metropolitan area and Sejong City. At the factor level, the effects of profitability and regulation were significant in the whole group and the group with low investment intention, but the effects of risk and liquidity were significant in the group with high investment intention. At the sub-attribute level, all three groups showed different results.

• Journal of Distribution Research
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• v.14 no.1
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• pp.45-65
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• 2009

As a number of people using the internet for their shopping steadily rises, it is increasingly important for retailers to understand why consumers decide to buy products via online or offline. The main purpose of this study is to develop and test a model that enhance our understanding of how consumers respond future online and offline channels for their purchasing. Rather than merely adopting statistical models like most other studies in this field, the present study develops a model that combines double-cohort method with multinomial logit model. It is desirable if one can adopt an overall encompassing criterion in the study of consumer behaviors form diverse sales channels. This study uses the concept of cohort or aging to enable this comparison. It enables us to analyze how consumers respond to online and offline channels as people aged by measuring their shopping behavior for an online and offline retailers and their subsequent purchase intentions. Based on some empirical findings, this study concludes with policy implications and some necessary fields of future studies desirable.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.11 no.4
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• pp.281-291
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• 2013

A hypothetical repository was assumed to be located at the KURT (KAERI Underground Research Tunnel) site, and the travel times of radionuclides released from three source positions were calculated. The groundwater flow around the KURT site was simulated and the groundwater pathways from the hypothetical source positions to the shallow groundwater were identified. Of the pathways, three pathways were selected because they had highly water-conductive features. The transport travel times of the radionuclides were calculated by a TDRW (Time-Domain Random Walk) method. Diffusion and sorption mechanisms in a host rock matrix as well as advection-dispersion mechanisms under the KURT field condition were considered. To reflect the radioactive decay, four decay chains with the radionuclides included in the high-level radioactive wastes were selected. From the simulation results, the half-life and distribution coefficient in the rock matrix, as well as multiple pathways, had an influence on the mass flux of the radionuclides. For enhancing the reliability of safety assessment, this reveals that identifying the history of the radionuclides contained in the high-level wastes and investigating the sorption processes between the radionuclides and the rock matrix in the field condition are preferentially necessary.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.2
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• pp.109-116
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• 2014

In this study, the factors affecting the profitability of the oriental medicine hospitals of University to be analyzed. To do this, profitability indicators and current ratio, liquidity, turnover ratio, cost factors analysis and suggested ways to improve management. The results are as follows, the operating margin(1.17%). the return on assets(3.76%), the net profit to gross revenues(2.37%), and the net profit to total assets(-1.89) were lower than the average of the entire oriental medicine hospitals in Korea(respectively 8.9%, 8.7%, 2.6%, 2.5%). Current ratio(256.76%), quick ratio(231.17%), fixed ratio(121.02%), and total assets turnover(135.69%) were similar to the average of all oriental medicine hospitals in Korea. But growth rate of total assets(-2.21%), and growth rate of patient revenue(1.89%) is low. And salaries(53.39%), materials costs(16.62%), administrative expenses(28.58%) were different to the average of all oriental medicine hospitals in Korea(respectively 35.3%, 10.7%, 45.1%). Meanwhile, the cost ratio of the oriental medicine hospitals of University was 98.59%. It was 7.49% higher than the 91.1% of the average of all oriental medicine hospitals in 2011. Correlation analysis, growth rate of patient revenue and operating margin increased at the same time, and net profit to gross revenues and net profit to total assets with a growth rate of total assets increased. And administrative expenses and profitability indicators showed a negative correlation. It means, in order to improve the profitability of the oriental medicine hospitals of University should focus on reducing administrative expenses. Multiple regression analysis, growth rate of total assets, total assets turnover, administrative expenses, and salaries has affected the profitability. Therefore, in order to improve the profitability of the oriental medicine hospitals of University to increase the total capital and the total capital turnover, and to reduce administrative expenses effort.

• Journal of the Korea Convergence Society
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• v.10 no.11
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• pp.419-428
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• 2019

This study aims to verify the self-determination motivation and ego resilience on the grit of the preparing students for the secondary school physical education teacher certification examination to provide basic data to improve the level of grit required for them to pass the certification examination and be appointed as physical education teachers. Thus, in order to achieve the objectives of this study, 403 students were verified through one-way ANOVA and correlation analysis and stepwise multiple regression analysis, which resulted in the following conclusions: The higher the level of intrinsic motivation and ego resilience, the higher the level of the grit sub-factors. Self-determination motivation and ego resilience that affect grit the most are found to be intrinsic motivation. Next came positive thinking, emotion regulation, problem solving and identified motivation factors. The results of this study suggest the importance of dealing with self-determination motivation and ego resilience affecting grit, and put forward the limitations of the study and future directions of research.

• The Journal of the Convergence on Culture Technology
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• v.9 no.1
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• pp.95-100
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• 2023

The purpose of this study was to examine the relationship among children's perceived parental attachment, parental happiness, and children's autonomy, and to find out in detail the influence of parental attachment and parental happiness on children's autonomy. Frequency analysis and descriptive statistical analysis were performed on data from the 12th year of the Korean Children's Panel (2019), and Pearson's moment correlation coefficient was calculated for correlation analysis between variables. Multiple regression analysis was conducted to examine the influence of parental attachment and parental happiness on children's autonomy. The research results were as follows. First, parental attachment perceived by children, parental happiness, and children's autonomy were all positively correlated. Second, among the sub-variables of parental attachment, maternal trust, paternal trust, and maternal communication were found to have an influence, and only maternal happiness was found to have an effect on parental happiness. This means that parental attachment acts as a more important variable than parental happiness. Therefore, we need constant attention and effort to support children in a more intimate and stable relationship with their parents so that they can gain life satisfaction through active and proactive choices and decisions.

• Journal of Korean Society for Geospatial Information Science
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• v.3 no.1 s.5
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• pp.55-66
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• 1995

Most studies using satellite images have been performed to determine three dimensional positioning by stereoscopic analysis for stereo-pair or to extract digital elevation model by stereo matching using image correlation techniques. Because the small errors on the ground control points have a great impact on the results, however, it is hard to get reliable products when we analyze satellite orbital parameters or acquire digital elevation model by using only stereo-pair. Also, if there are noises, shadows, or clouds on the one of stereo pair, it is difficult to produce DEM(digital elevation model) on the area under analysis or to have good accuracy. In these case, it can be solved by systematic analysis of the multiple stereo images. This paper suggests the improvements on the accuracy of the digital elevation model by the developments of stereoscopic analysis techniques for the triplet of SPOT satellite images on the same area.

• Culinary science and hospitality research
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• v.19 no.1
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• pp.1-11
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• 2013

This study was conducted from 10 February 2011 until 2 March 2011 targeting culinary workers in deluxe hotels in Seoul. The data from 161 copies of questionnaire were analyzed using SPSS 17.0 for the factor analysis and the reliability test, and the multiple regression analysis was performed to verify the hypotheses. The results are as follows. First, correlation among interpersonal attachment, job satisfaction and job attachment showed that stable attachment had a significantly positive(+) effect on job satisfaction and job attachment. Second, unstable attachment had a negative effect on job satisfaction. Moreover, there were no correlations between job satisfaction and job attachment by the types of attachment. Third, for the effect of interpersonal attachment on job satisfaction, the stable one had a significantly positive(+) effect on job satisfaction; however, avoidant and unstable ones didn't have a significant effect on job satisfaction. Consequently, the results of this analysis suggest the future direction of culinary workers.

• The Journal of the Korea Contents Association
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• v.12 no.4
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• pp.349-357
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• 2012

This paper was to investigate the effects of conjugal power and gender role attitudes on marital satisfaction of middle-aged couples. This survey was conducted from April, 2011 to May, 2011 and 265 responses from the survey were used for the analysis. The data was analyzed by descriptive statistics, t-test, ANOVA pearson correlation and multiple regression. The research findings could be summarized as the followings. First, the mean scores of gender role attitude, conjugal power, marital satisfaction of the marital middle-aged couples were higher than averages. Second, gender role attitude and conjugal power were the significant predictors to explain marital satisfaction of marital middle-aged couples.

• The Journal of the Korea Contents Association
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• v.9 no.2
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• pp.10-17
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• 2009

This paper analyze the effect of frequency offset for the IEEE 802.15.4b LR-WPAN(Low-Rate Wireless Personal Area Network) with 915MHz bandwidth noncoherent DSSS O-QPSK based receiver system, and presents a compensation method with addition of differential filter to the system for compensation of frequency offset problem. DSSS PSSS-ASK and DSSS O-QPSK modulation techniques are accepted within the regularization of IEEE 802.15.4b. These new method can obtain 250kbps transmission rate. The DSSS O-QPSK modulation method that is used in this paper has no BER variation below 40ppm(frequency offset 36.6kHz), but if the offset frequency become high above 40ppm, then the system cannot have stable receiving condition due to worse BER. To solve this problem, we present a more stabilized receiver system at maximum frequency offset ${\pm}80ppm$ using MDDF unti a correlator of DSSS O-QPSK modulator. Moreover computer simulation results will be presented to evaluate the performance of the proposed algorithm unde various AWGN and frequency offset environment.