• Korean Journal of Child Studies
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• v.37 no.1
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• pp.17-36
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• 2016

Objective: Taking note of the fact that North Korean refugee children experience frequent separation from their mothers and long-term maternal deprivation during their childhood, this study examined the relationship between children's separation experiences and attachment. Methods: A total of 37 children aged from 5 to 9 were assessed on their attachment using the Separation Anxiety Test, and their mothers reported on their child's separation experiences. Results and Conclusion: The major findings of this study were as follows: first, the result of evaluating their attachment pattern showed North Korean refugee children had a high level of insecure attachment with a high tendency for avoidant attachment. This avoidant attachment tendency is probably due to growing up in a repressed emotional environment by frequently experiencing maternal separation in North Korea, China, and even after settling down in South Korea. Second, children's secure attachment level was higher if they did not experience separation from their mother, if their mother had a high level of education in South Korea, or if they lived with a big family.

• Journal of Korea Foundry Society
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• v.35 no.1
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• pp.8-14
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• 2015

Variations of nickel contents and microstructures in molten magnesium alloys on the addition of aluminum, zirconium, and manganese have been investigated. Specimens were prepared by melting under $SF_6$ and $CO_2$ atmosphere and casting into a disc of 29 mm diameter with 7~10 mm thickness from the melt acquired at the top of crucible. Before casting, the molten metal was stirred for 3 minutes after each addition of alloying elements and maintained for 30 minutes for settling down. Results showed that zirconium did not significantly affect the content of nickel while aluminum remarkably reduced it by forming $Al_3Ni_2$ phase. When manganese are added to Mg-1wt%Ni alloy along with aluminum, both elements remarkably reduced the content of nickel. The addition of 1.5 wt% manganese to Mg-1wt%Ni alloy containing aluminum further reduced the content of nickel by more than 30%, during which an additional intermetallic phase $Al_{10}Mn_3Ni$ was precipitated in the molten magnesium.

• Resources Recycling
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• v.19 no.1
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• pp.49-56
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• 2010

This paper has specific objective to contribute in improving recycling ratio and settling down strategic reverse management for waste recycling. To serve in such intention, focused in investigating technological issue and suggesting executive idea. Binding thus, technological tendency and global patent, study case were analyzed mainly in fields of waste recycling system based on incentives, waste automatic collection system using RFID, waste management information system. Descriptions are consisted of tendency for technology, government policy, case analysis, discussion, conclusion.

• Journal of the Korea Furniture Society
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• v.27 no.1
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• pp.49-58
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• 2016

In modern society, designers started feeling moral and social responsibility in the aspect of environment as a position of suggesting something new. Rather than creating another waste to make something innovative, the concept of Upcycling which is about adding design or utilization to the existing recyclable materials to raise their value to products or art works has started settling down. Among them, there have been various researches on the use of offcut waste to be dumped. Such use of waste can be found in Jogakbo (patchwork), one of our traditional boudoir crafts. This could be connected to the concept of the modern Upcycling in the aspect of giving new values to the wasted pieces of fabric through needlework. Therefore, this study suggested Stitch work as new Upcycling furniture by seeking for the common connections between Upcycling and traditional Jogakbo, and then reinterpreting them in the same viewpoint. It was an opportunity not only to rediscover 'the esthetics of waste' by changing the awareness of 'behavior of dumping', but also to reinterpret or reconsider the tradition. Based on this, it is expected to continuously have new attempts to use offcut waste for eco-friendly design in the future, and also to have opportunities to seek for new directions of Upcycling to rediscover new values through the revaluation of valuelessness.

• Journal of Electrical Engineering and Technology
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• v.6 no.5
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• pp.658-665
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• 2011

In the present paper, a novel fast peak detector for single- or three-phase unsymmetrical voltage sags is proposed. The proposed detector is modified from a single-phase digital phase-locked loop based on a d-q transformation using an all-pass filter (APF). APF generates a virtual phase with $90^{\circ}$ phase delay. However, this virtual phase cannot reflect a sudden change of the grid voltage in the moment of voltage sag, which causes a peak value to be significantly distorted and to settle down slowly. Specifically, the settling time of the peak value is too long when voltage sag occurs around a zero crossing, such as phase $0^{\circ}$ and $180^{\circ}$. This paper describes the operating principle of the APF problem and proposes a modified all-pass filter (MAPF) to mitigate the inherent APF problem. In addition, a new fast peak detector using MAPF is proposed. The proposed detector is able to calculate a peak value within 0.5 ms, even when voltage sag occurs around zero crossing. The proposed fast peak detector is compared with the conventional detector using APF. Results show that the proposed detector has faster detection time in the whole phase range. Furthermore, the proposed fast peak detector can be effectively applied to unsymmetrical three-phase voltage sags. Simulation and experimental results verify the advantages of the proposed detector and MAPF.

• Journal of the Korean Society of Safety
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• v.34 no.6
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• pp.38-49
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• 2019

While the overall industrial accident rate has been decreased, but those of the construction industry has not been. For safety management during the planning/design phase, which accounts for 45% of the cause of accident at the construction site, Design For Safety (DFS) was established to minimize a hazard and risk in 2016. Currently, DFS system has difficulty settling down in Korea due to the several reasons. So, this paper aims to propose to the Key Success Factor (KSF) and related action plan to improve DFS system. This study was conducted by following 2 steps: i) identification of problems on current DFS, and ii) proposal of KSF and following action plan for DFS. The DFS in Korea was compared with UK, Singapore, Australia, and US on 7 criteria (application target, execution period, change of design, collaboration among participants, expert participants, alternative review and decision support system). DFS was compared with other countries's system based on the identical criteria and the corresponding improvement measures were also proposed. The results of this study can be utilized to improve DFS system in various aspects.

• The Journal of Korean Academy of Prosthodontics
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• v.50 no.2
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• pp.92-98
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• 2012

Purpose: The aim of this study was to evaluate the effects of different abutment materials on abutment screw loosening and settling-down effect in conical connection type implant system. Materials and methods: Three types of abutment, cementation, gold UCLA, and metal UCLA abutment were used. Two UCLA groups were fabricated in a similar pattern to cementation abutment. Type III gold alloy and Nickel-Chromium alloy was used for casting gold UCLA abutment and metal UCLA abutment, respectively. Fixture and abutment were tightened to 30 Ncm by using digital torque controller and re-tightening was conducted with same force after 10 minutes. Digital torque gauge was used to measure loosening torque and fixture/abutment length was measured by digital micrometer. Dynamic loads between 25 N and 250 N were applied with $0^{\circ}$ angle to the abutment axis. After loading, fixture/abutment length was re-measured and amount of settlement was calculated. Loosening torque value was also measured for comparison Results: All three groups showed significant differences of length when comparing before and after loading, but there was no significant difference of settling amount in all groups. Loosening torque values were significantly decreased when comparing before and after loading in all groups($P$<.05). However, there was no significant difference in loss of loosening torque values when compared to groups. Conclusion: In internal conical connection type implants, dynamic load affected on settlement and loosening torque of implant, but there was no differences between abutments materials. Likewise gold UCLA abutment, metal UCLA abutment might be able to withstand functional load.

• Journal of Arbitration Studies
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• v.28 no.1
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• pp.77-97
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• 2018

The Court of Arbitration for Sport (CAS) has been adjudicating on sports-related disputes since 1984. CAS can be regarded as world supreme court for sports settling down about 4200 cases including doping issues. Doping disputes are generally processed by CAS Appeals division and Anti-Doping Division. An appeal against the decision by sports-related bodies may be filed with CAS Appeals Division. Doping issues concerning Olympic games are on Anti-Doping Division, introduced from 2016 Olympic games and invested with complete authority by IOC. The Award of Maria Sharapova finds a player is responsible if found to have committed any Anti-Doping Rule Violation regardless of his/her intention or fault. It offers detailed jurisprudence on imposing such a specific period of ineligibility in view of the totality of the circumstances. The award of Xinyi Chen also confirms the Strict Liability Rule on anti-doping disputes. The player appealed there could be either accidental contamination of drinks, or doping laboratories' mistakes that affected the test results. But, all of them were rejected. Though dealing with doping disputes in a timely manner is important for seasonal sports events like Olympic games, it is necessary to prepare the acceptable and fair process for the players in the future.

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.335-344
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• 2011

There have been many leading researches on the North Korean Refugees who were settling in Korea which were mostly focused on raising the Defector issues and seeking how to improve those. It is not so easy to get over social and cultural gap and differences between the South and the North prolonged for more than half a century especially when the possibility of bulk of the North Korean Refugees rushing into the South by any contingency case is very high or South and North should expand social integration on the basis of mutual exchange and cooperation. Local government should grope for any policy switch which can help them have positive postures rather than simple support policy for settlement, as well.

• Korean Institute of Interior Design Journal
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• v.24 no.6
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• pp.79-86
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• 2015

This study started from the concern for Bjrake Ingels, an emerging architect in the architecture circle, who is creative and popular. Recently, the architecture field provides architects with a foundation to express a process on a new form creation through various new expressive languages, design concepts, and methods. The global Danish group BIG(Bjarke Ingels Group) develops a story by their distinctive architectural language. The storytelling is being used in various fields and now the tool called 'story' is settling down as an important element in the life that human lives. Bjarke Ingels leading the group BIG aims for the form expression by the scientific analysis and adaptation after being affected by Danish regional background and OMA. It creates a form to share stories with local members by visually simplifying the region, culture, environment, social phenomenon, economy, and politics that are invisible and do not have the form in the modern society. The elements and expressive features of the space storytelling include locality, cultural, natural environment, and connectivity which are the content structure(story) that enables you to intervene in the story according to the main agent to imagine a new space. The expressive element includes the watching moving line story of the successive, hierarchical, and organic structures which are constructive elements creating various spaces through the mixture, transmutability, and relocation of the program and inducing users to the space. The space storytelling is composed of the symbolism, community, and eco-friendliness to appear diversely through BIG's case analysis. This study will have significance that it drew a method and feature looked at by many contemporary architects from the storytelling viewpoint in the form-creating process, classified the form-creating process through a new storytelling type, and showed a possibility on the development of various methodologies.