• Human Ecology Research
• /
• v.53 no.5
• /
• pp.557-566
• /
• 2015

This study investigated the effects of multi-culture acceptability and multi-culture teaching efficacy on young child-teacher relationships. The teachers' attitude towards multi-culture education was included in the analysis as a mediator between multi-culture acceptability and multi-culture teaching efficacy. Participants were 295 teachers and 295 young children between 3 and 5 years in childcare centers located in Seoul, Incheon, Ulsan, Gyeonggi, and North Gyeongsang Province. Teachers completed questionnaires regarding multi-culture acceptability, multi-culture teaching efficacy, and attitude towards multi-culture education. Collected data were analyzed by descriptive statistics, Pearson's correlation, Structural Equation Model, and Sobel test with SPSS ver. 18.0 and AMOS ver. 21.0. The results were as follows. First, the subscale of multi-culture acceptability and multi-culture teaching efficacy generally showed a positive correlation with closeness and conflict in the subscale of young child-teacher relationships. Second, teacher's multi-culture acceptability directly influenced the young child-teacher relationship. In addition, the impact of multi-culture teaching efficacy on young child-teacher relationship was mediated perfectly by the multi-culture education attitude. The results suggest that the multi-culture teaching efficacy promote early childhood multicultural education attitudes and that can be changed to positive teacher relationships.

• Communications of the Korean Mathematical Society
• /
• v.35 no.4
• /
• pp.1185-1192
• /
• 2020

In this paper, we introduce and investigate multi subspace-hypercyclic operators and prove that multi-hypercyclic operators are multi subspace-hypercyclic. We show that if T is M-hypercyclic or multi M-hypercyclic, then Tⁿ is multi M-hypercyclic for any natural number n and by using this result, make some examples of multi subspace-hypercyclic operators. We prove that multi M-hypercyclic operators have somewhere dense orbits in M. We show that analytic Toeplitz operators can not be multi subspace-hypercyclic. Also, we state a sufficient condition for coanalytic Toeplitz operators to be multi subspace-hypercyclic.

• Journal of Distribution Science
• /
• v.15 no.1
• /
• pp.21-30
• /
• 2017

Purpose - These days, Korean society with more than 2 million foreigners has made multi-cultural society quickly. Multi-cultural society has become popular and anti multi-cultural phenomenon has grown up gradually against Korea's traditional habits. Research design, data, and methodology - European countries that were said to be multi-cultural society had suffered from terror, riot and other social conflicts. The study examined Koreans' racism and anti multi-cultural emotion to investigate the conditions and causes of anti multi-cultural emotion. Further, this study investigates a prevention of the worst case such as Norway terror and the countermeasures compared to each country's social customs. Results - Koreans are not generous to the foreigners. Foreign countries' cases after failures in multi-cultural society might give future implications on multi-cultural society in Korea. Conclusions - Korean society have not produced new one by introducing another races, nationality and culture not cognizing failure experiences of multi-culturalism like Europe. Nonetheless, Korean society shall not give up multi-culturalism. Korean society shall prepare for multi-culturalism society to lessen social conflict as much as possible and not to neglect anti culturalism emotion producing social conflict, and shall investigate the related causes to lessen anti multi-culturalism emotion and to integrate Korean style of multi-culturalism society for Korea as a tool of nation management.

• Journal of the Korean Society of Safety
• /
• v.34 no.5
• /
• pp.167-174
• /
• 2019

Compared to a single nuclear power plant (NPP) risk, the commonalities existing in the multiple NPPs attribute the characteristics of the multi-unit risk. If there is no commonality among the multiple NPPs, there will be no dependency among the risks of multiple NPPs. Therefore, understanding the commonality causing multi-unit events is essential to assessing the multi-unit risk, and identifying the characteristics of the multi-unit risk is necessary not only to select the scope and method for the multi-unit risk assessment, but also to analyze the data of the multi-unit events. In order to develop Korea-specific multi-unit risk assessment technology, we analyze the multi-unit commonalities included in the operational experiences of domestic NPPs. We identified 58 cases of multi-unit events through detailed review of domestic nuclear power plant event reports over the past 10 years, and the multi-unit events were classified into six commonalities to identify Korea-specific characteristics of multi-unit events. The identified characteristics can be used to understand and manage domestic multi-unit risks. It can also be used as a basis for modeling multi-unit events for multi-unit risk assessment.

• Nuclear Engineering and Technology
• /
• v.52 no.5
• /
• pp.975-983
• /
• 2020

Since the Fukushima Daiichi accident in 2011, concerns for the safety of multi-unit Nuclear Power Plant (NPP) sites have risen. This is because more than 70% of NPP sites are multi-unit sites that have two or more NPP units and a multi-unit accident occurred for the first time. After this accident, Probability Safety Assessment (PSA) has been considered in many countries as one of the tools to quantitatively assess the safety for multi-unit NPP sites. One of the biggest concerns for a multi-unit accident such as Fukushima is that the consequences (health and economic) will be significantly higher than in the case of a single-unit accident. However, many studies on multi-unit PSA have focused on Level 1 & 2 PSA, and there are many challenges in terms of public acceptance due to various speculations without an engineering background. In this study, two kinds of multi-unit Level 3 PSA for multi-unit site have been carried out. The first case was the estimation of multi-unit risk with conservative assumptions to investigate the margin between multi-unit risk and QHO, and the other was to identify the effect of time delays in releases between NPP units on the same site. Through these two kinds of assessments, we aimed at investigating the level of multi-unit risk and understanding the characteristics of risk in a multiunit context.

• 한국전산유체공학회:학술대회논문집
• /
• 2010.05a
• /
• pp.517-523
• /
• 2010

Recently, the rapid evolution of computational fluid dynamics (CFD) has enabled its key role in industries and predictive sciences. From diverse research disciplines, however, are there strong needs for integrated analytical tools for multi-phenomena beyond simple flow simulation. Based on the concurrent simulation of multi-dynamics, multi-phenomena beyond simple flow simulation. Based on the concurrent simulation of multi-dynamics, multi-physics and multi-scale phenomena, the multi-phenomena CFD technology enables us to perform the flow simulation for integrated and complex systems. From the multi-phenomena CFD analysis, the high-precision analytical and predictive capacity can enhance the fast development of industrial technologies. It is also expected to further enhance the applicability of the simulation technique to medical and bio technology, new and renewable energy, nanotechnology, and scientific computing, among others.

• Journal of Family Resource Management and Policy Review
• /
• v.14 no.4
• /
• pp.151-171
• /
• 2010

Multi-culturalization in our society may be the cause of many problems, but if appropriately dealt with, diversity brought on by multi-culturalization could resolve chronic abuses in education and create a new culture, thereby contributing greatly to national development. The purpose of this study was to examine the current research on multi-cultural education and to provide a normative orientation to multi-cultural education. The literature research was conducted between March 2008 and September 2009. The followings are the findings of this study. First, the results reveal that the appropriate target of a multi-cultural society should not be assimilation, but rather, multi-culturalism. Multi-culturalism has greater adaptability, and the key lies in its respect for human rights, its strengthening of multi-cultural capacity, and its consideration for the minority by moving toward corporate multi-culturalism that aims for equality in results. Second, the first form of multi-cultural education emphasizes neutrality and argues that it is the best way to respect different cultures. This form of multi-cultural education emphasizes neutrality toward "sameness." In this context, sameness means equality of the rights of human beings. The other form of multi-cultural education emphasizes diversity and argues that it is the best way to respect different cultures. It focuses on the recognition of particularity. But it reveals its shortcomings when it excludes interaction not only between an individual and the culture, but also between the insider and outsider of the culture and its social institutions. Thus, multi-cultural education for mutual understanding is suggested. Third, it has been found that pure homogeneous nationalism must be destroyed, but nationalism needs to transform itself rather than be abolished in a globalized and multi-cultural society. Moreover, on behalf of pursuing open nationalism, the self-transformation of nationalism is advisable, in order to for it to overcome its antagonistic and exclusive nature.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.33 no.4
• /
• pp.644-654
• /
• 2009

The purpose of this study is to analyze the characteristics of current fashion illustrations within the framework of Multi-space method. Multi-space means being piled up one moment & space on others, and being amassed in a scene. This method is related with Dadaism, Surrealism and Postmodernism, and also influences on the current fashion illustration. In this study, the types of Multi-space method could be classified into 4 types; Repetitive Time Mixture in Multi-space, Juxtaposed Time Mixture in Multi-space, Reiterated Space Mixture in Multi-space, Projected Space Mixture in Multi-space. The characteristics of Multi-space were analyzed and the results are as followed. The distinctive methods for Time Mixture in Multi-space are repetition and juxtaposition in a scene. Time Mixture in Multi-space can make the nonlinear narration and unreal illusory space in fashion illustrations more effectively. Reiterated Space Mixture in Multi-space can be related with the heterogeneous, surrealistic illusions in current fashion illustrations. Projected Space Mixture in Multi-space can be characterized into inter-penetration. It can derive spectators to mix the projected & transparent images in a scene for their own imaginary stories. The final imagination can be made differently according to the personal experiences of spectators.

• Journal of information and communication convergence engineering
• /
• v.14 no.1
• /
• pp.21-25
• /
• 2016

N-screen is a promising technology to improve support for multimedia multicasting, content sharing, content mobility, media scalability, and seamless mobility. In this paper, the WiMedia distributed-MAC (D-MAC) protocol is adopted for development of a seamless N-screen wireless service. Furthermore, to provide a multi-hop, one source multi-use N-screen service through point to point streaming in a seamless D-MAC protocol, a dynamic multi-frame transmission technology is proposed. In this technology, a dynamic time slot allocation scheme and a multi-hop resource reservation scheme are combined. In the proposed dynamic time slot allocation scheme, two thresholds, a hard threshold and a soft threshold, are included to satisfy the power consumption and delay requirements. A multi-frame DRP reservation scheme is proposed to minimize end-to-end delay during the multi-hop transmissions between N-screen devices. The proposed dynamic multi-frame transmission scheme enhances N-screen performance in terms of the multi-hop link establishment success rate and link establishment time compared to the conventional WiMedia D-MAC system.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.24 no.8A
• /
• pp.1099-1106
• /
• 1999

In this paper, the bit error ratio(BER) performance of multi-carrier CDMA system in multi-user/multi-path environment is analytically derived, and effect of interferences due to multi-user, multi-carrier, multi-path is analyzed. A multi-carrier/multi-user/multi-path joint detection scheme incorporating a decorrelating detector is proposed, and its performance as well as the enhancement of noise due to decorrelating process are analyzed. BER of the proposed joint detection scheme is only slightly degraded compared to the ideal case of single user environment.