• Journal of Digital Convergence
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• v.18 no.8
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• pp.447-457
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• 2020

Mobility passengers with over four levels of autonomous driving are more likely to feel carsickness because they do not drive independently. Therefore study on how to prevent or mitigate carsickness are needed to ensure comfortable and productive moving experience of passengers. Therefore this study looked into prior researches on the causes and solutions of carsickness and conducted a survey on the specific situation of carsickness among the general public. Based on this preliminary study the four interaction guide lines for preventing and mitigating of carsickness were designed and validated by performing a CVT (Concept value test). The study have shown that people prefer auditory sense and somatic senses for response in carsickness. These current have been similar in CVT and I believe that specific interaction design proposals and validations will be needed in the future.

• Journal of the Korea Society of Computer and Information
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• v.26 no.8
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• pp.229-237
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• 2021

This paper aims to study the using motivation and influencing factors of Chinese users' participation in live stream shopping through theoretical and empirical analysis, so as to evaluate the change in users' needs and improve marketing strategies. In doing so, I conducted a questionnaire survey for Chinese live stream shopping users and collected the required data. For empirical analysis, I used SPSS and AMOS software to carry out descriptive analysis, reliability and validity analysis and structural equation model analysis (SEM) to test the hypothesis. The results of the analysis showed that core competency and brand personality of the short video industry have a significant impact on user and customer perceived value, thus influencing users' using motivation. That is, users do not blindly follow live stream shopping but make their active choice. Therefore, it is suggested that live stream shopping platform should strengthen the e-commerce attributes and eradicate "the sense of false satisfaction", in order to achieve the effective communication of information. On the other hand, to stimulate the purchase motivation of users, the brand should build up its personality, and enhance user and customer perceived value in cyber marketing.

• Journal of the Korean Mathematical Society
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• v.54 no.5
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• pp.1483-1504
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• 2017

We consider weak solutions of the instationary Navier-Stokes system in a smooth bounded domain ${\Omega}{\subset}{\mathbb{R}}^3$ with initial value $u_0{\in}L^2_{\sigma}({\Omega})$. It is known that a weak solution is a local strong solution in the sense of Serrin if $u_0$ satisfies the optimal initial value condition $u_0{\in}B^{-1+3/q}_{q,s_q}$ with Serrin exponents $s_q$ > 2, q > 3 such that ${\frac{2}{s_q}}+{\frac{3}{q}}=1$. This result has recently been generalized by the authors to weighted Serrin conditions such that u is contained in the weighted Serrin class ${{\int}_0^T}({\tau}^{\alpha}{\parallel}u({\tau}){\parallel}_q)^s$ $d{\tau}$ < ${\infty}$ with ${\frac{2}{s}}+{\frac{3}{q}}=1-2{\alpha}$, 0 < ${\alpha}$ < ${\frac{1}{2}}$. This regularity is guaranteed if and only if $u_0$ is contained in the Besov space $B^{-1+3/q}_{q,s}$. In this article we consider the limit case of initial values in the Besov space $B^{-1+3/q}_{q,{\infty}}$ and in its subspace ${{\circ}\atop{B}}^{-1+3/q}_{q,{\infty}}$ based on the continuous interpolation functor. Special emphasis is put on questions of uniqueness within the class of weak solutions.

• Journal of The Korean Digital Architecture Interior Association
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• v.12 no.4
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• pp.49-57
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• 2012

With regard to the culture in cities this study aims to essential understanding and systematic approach to the culture. The "2011 Seoul Survey"report has been used to find out causality among the related variables. In the first place 'satisfaction of cultural condition' was operationally selected as a dependent variable for regression. For the purpose of controlling confounding factors for ceteris paribus effect correlation analysis was done between the dependent variable and all other variables respectively, which resulted in two groups of variables: group (1) - 6 variables of very significant correlations(p-value<0.01) and (2) - the other 6 variables of significant correlations(p-value<0.05). Then hierarchical regression was adopted to these 2 groups to analyse $R^2$ increment, statistical significance of independent variables, and multicollinearity(VIF; variance inflation factor). At last a regression model specified by group (1) as independent variables(they are 'social trust', 'satisfaction of walking condition', 'happiness index', 'preparation against old age', 'satisfaction of traffic condition' and 'hours for internet') shows that only 'social trust' variable has statistically significant and substantially strong effect on 'satisfaction of cultural condition.' This finding should be accepted on the following understanding; (1) urban culture has a collective attribute formed between people and society, (2) culture is somewhat telling and hearing stories and the confidence between tellers and hearers is essential in the mutual response and (3) stimulus is received by relationship in company with sense, emotion, thinking and action. In spite of restrictive external validity this finding can be used as a direction for promoting culture and a basis for related policy choice in cities.

• The Journal of the Korea Contents Association
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• v.18 no.12
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• pp.343-363
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• 2018

Classical film narrative fails to reflect the increasing complexity of modern society. In this era of film narrative crisis Hirokazu Koreeda presents a new solution. The director puts an emphasis on neutral valuation over subject matter rather than empathy of audiences which leads to a biased point of view. Thus Hirokazu Koreeda choose space over story as a critical narrative enabler. Two qualitatively opposite spaces are presented and the boundary space of the two are set as a main background where the valuation over the spaces waves up and down. Audiences who get accustomed to a one-sided value judgement led by storytelling can be neutralized by pendulum movement of valuation. The specific methods of using space as a main tool of value neutralization have changed through the director's filmography. Space had been thoroughly designed through the storyboard in early works. Later the director let audiences experience the spaces to evoke a sense of place.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.12 no.4
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• pp.56-65
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• 2013

The word is endeavoring to reduce greenhouse gases with the sense of crisis caused by the continuous climate change. As a method to decrease greenhouse gases, motors driven by fossil fuels are being substituted by EV in the field of transportation. Meanwhile, for the spread of EV, charging installations are divided into general charging type and quick charging type. Also, charging amount and time are main factors to decide charging pay. But, because the opportunity coast for the charging time varies depending on the private situations, it is very important to understand exact phenomenon for the spread of EV charging installations and charging pay policy. Therefore this paper suggested the choice model of charging installation and time value in various situations by using Logit model to make clear the relationship between a choice of charging installation, charging time and willingness to pay for charge.

• Survey Research
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• v.9 no.1
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• pp.23-42
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• 2008

This study purports to examine the potential determinants of welfare attitudes of Korean Youth. In a sense, this study could be considered as exploratory since the independent variables for model are chosen in a somewhat arbitrary manner. The independent variables are mostly value orientation of Youth. The welfare attitude is measured by the question asking respondent's nonnative idea on the primary care-giver in the old age. Data has been collected by National Youth Policy Institute as a part of research project, named "Korean Youth Development Indicators". The analysis shows that the welfare attitudes of Korean youth is influenced. by a number of factors. such as parent's education, a proxy for the parents' SES, attitude toward equality. and state's responsibility in general. The author contends that although this is an exploratory kind of study, this study contributes not only to the research in the field, hut also to the welfare policy-makers by providing generalizable outcomes on the value and attitudes of Korean youth on welfare issues. After all, policy needs public supports to be sustained.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.22 no.11
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• pp.1113-1120
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• 2012

This paper deals with the analysis of interior noise and low frequency noise characteristic for the Busan citizens to use public transport, Busan Metro Line 3. The interior noise evaluation index, articulation index(AI) is evaluated the lower value about average 22 % in a whole range, this is difficult to have a conversation. Also, noise criteria(NC) curve is partially evaluated as NC-65 below 2000 Hz, space type is evaluated as factories. Another of interior noise evaluation index, preferred speech interference level(PSIL) is evaluated the upper value about average 66 dB(A) in a whole range, this is evaluated to be interrupted. In the case of low frequency noise(20~200 Hz), the measurement of low frequency noise is assessed largely beyond noise criteria of ISO 226. The low frequency noise should be reduced because low frequency noise affects on psychological stress and displeasure although low frequency noise is not recognized by auditory sense. The low frequency noise criteria and guideline will be enacted from now on in Korea.

• Korean Security Journal
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• no.44
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• pp.37-58
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• 2015

The purpose of this study was to verify the effect of passion on major students for security martial arts. Participants were selected 393 undergraduate students who study security martial arts. Sampling was used by purposive sample method. Measurements were used with multi-dimensional passion and motivation scales. Statistic was executed descriptive statistics, exploratory factor analysis, Pearson's correlation and multiple linear regression. The results of this study were as follows: First, motivation of student for security martial arts has influencing relationship with harmonious passion. Second, motivation has influencing relationship with obsessive passion. Third, motivation has influencing relationship with sense of unity. Forth, motivation has influencing relationship with preference of passion. Fifth, motivation has influencing relationship with value of passion. Sixth, motivation has influencing relationship with investment of passion. That is, internal motivation such as giving value and inner satisfaction gives positive effect to passion above mentioned factors but a motivation gives negative effect to passion.

• The Journal of the Korea Contents Association
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• v.16 no.5
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• pp.583-590
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• 2016

There are so many study on Heumheum Sinseo as a lawbook. But the study on Heumheum Sinseo as investigation and forensic manual is uncommon. So this study was performed to find the value of Heumheum Sinseo as investigation and forensic manual. In Heumheum Sinseo, we could find the basic ideology of a sense of justice on humanitarianism and rationalism, and democratic thoughts on criminal law such as the presumption of innocence, speedy investigation clause and Limiting the admissibility of the confession. And so many scientific method on crime investigation are described in Heumheum Sinseo. We expect that this study serve as moment for us to be able to find it have 'practical' value to us.