• Journal of the Korean Academy of Esthetic Dentistry
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• v.31 no.2
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• pp.47-55
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• 2022

Food impaction due to proximal space opening after implant restoration is a very common phenomenon in patients who have implant prosthesis. This occurs because the movement mechanism between the implant and the tooth is different, and it occurs about 30-60% over time. Contributing factors include the arch (mandible), region (posterior teeth), adjacent teeth (non-vital teeth), and antagonist teeth (natural teeth or implants), etc. While this phenomenon cannot be prevented, efforts should be made to minimize it. In order to have an ideal proximal contact as much as possible, the concave shape or the prominent lower proximal shape should be modified to create a symmetrical proximal shape. with the buccal dentate in the upper third height should be adjusted. Other conditions should be modified so that the heights of the marginal ridges are similar. Since an irregular occlusal plane is a cause of poor prognosis, food impaction should be minimized by restoring the ideal occlusal plane by correcting the extruded antagonist and reduction of the disto-buccal cusp.

• Informatization Policy
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• v.29 no.3
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• pp.3-25
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• 2022

Since social media's introduction, it has reached a point where almost all Internet users, or more than half of the world's population, use social media. As its use became a common activity for many people, social media inevitably induced a range of social phenomena, and numerous researchers have examined them from diverse perspectives. In order to understand the social media phenomenon and related studies better, this study incorporates and analyzes 1,038 articles of social media literature, explores their focuses, and provides an integrative knowledge of the social media phenomenon and research trend. Furthermore, by applying Ihde (1990)'s theories on human-technology relationships to social media literature, this study also investigates how the relationship between people and social media has changed. This study interprets the approaches used in literature in light of human-technology relationships and offers suggestions for future research.

• Journal of the Korean Geotechnical Society
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• v.26 no.4
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• pp.59-68
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• 2010

Piping, a common form of internal embankment erosion, is caused by progressive movement of soil particles through an embankment. The phenomenon commonly occurs with precursory signs of development of fractures in dam structures, but also occurs without any noticeable signs in dams that showed satisfactory dam performance for several years, due to dissolution of soluble material in an embankment. While piping accounts for nearly 50% of the causes for dam failure, few studies have been made for systematic evaluation of the phenomenon. In this study, we attempted to monitor the changes in electrical resistivities of fill-dam material while a saddle dam is dismantled for the construction of emergency spillways of Daechung dam. Two artificial subhorizontal boreholes were drilled into the embankment structure to simulate piping along the two artificial flow channels. Monitoring of changes in electrical resistivity showed an increase in resistivity values during piping. Thus, the investigation of resistivity over time could be an effective method for piping prediction.

• Research in Community and Public Health Nursing
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• v.10 no.2
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• pp.275-290
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• 1999

The Objectives of this study were to identify family nursing phenomena at the community in Korea and to contribute to build up family domain of International Classification for Nursing Practice. The method of this study was used retrospective one among three methods to develop ICNP during the period from April 1997 to June 1999. The procedure was to choose nursing phenomena using preliminary terms(stepl) from the reports on family nursing care of the nursing students of 5 junior colleges of nursing and 5 colleges of nursing. The study group members identified 3 common family nursing phenomena with 5 characteristics related to each phenomenon. In order to consensus the appropriate characteristics of a phenomenon(step2), 17 study group members had regrouped nursing phenomena and scored its characteristics 5 times. The essential characteristics of each family phenomenon were selected above 3.5 mean score from related characteristics(step 3). Finally, 17 phenomena were named preferred terms such as following, that was selected after investigated preliminary terms(step4). Family nursing phenomena in Korea are named as Lack of family interaction in community. Social isolation. Lack of social support system in community. Disturbance in parent role, Disturbance in marital role, Dissatisfaction of sexual life, Disturbance in family communication, Inappropriate family coping, Lack of family intimacy, Inappropriate family power structure, Family violence. Unhealthy life style. Deficit of financial management skill and support. Inadequate care a sick member. Insecure safety and hygiene in neighborhood, Inadequate home-sanitation. Inadequate home-making. Family nursing phenomena in Korea were partially confirmed family architecture of ICNP, Beta version. by this study. Further study on Family nursing phenomena in Korea will be required to support evidence through literature review of nursing classifications or field studies.

• Archives of Plastic Surgery
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• v.38 no.6
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• pp.775-782
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• 2011

Purpose: Nasal bone fracture is most common facial bone fracture. The cause of fractures is mainly trauma such as fighting, automobile accident and fall down, and it commonly involves young males. Very frequently nasal bone fractures are associated with other facial injuries such as orbital bone fracture, maxillary bone fracture and nasal septal deformities. Because of various dynamic directions of power are involved, phenomenon of fractures are also various and treatment cannot be simple. Methods: We studied and analyzed retrospectively 452 cases nasal bone fractures from January 2008 to December 2010. Diagnosis were made with physical examination, Nasal bone X-rays, Facial bone CT and 3D facial bone CT. Four surgeons are involved in treatments of these patients and applied different procedure along patient's condition and deformity. We analyzed the cause of nasal bone fractures, deformities, associate injuries and applied surgical technique, and patient's satisfaction rate. In this study, old nasal bone fractures were excluded. Results: Young male group was most commonly sustained nasal bone fracture and physical violence was most common cause of injury. 64 of 452 patient was involved associate injuries of face. Closed reduction were applied 246 cases and C-arm quide reduction were 167 cases and in 20 cases lateral osteotomy were applied. Approximately, more than 80% of the Patients were satisfied with the outcomes. Conclusion: Diagnosis and treatment of nasal bone fractures are considered simple but because of various deformity and associate injuries, treatment is not always simple and universal. Time to time, we face unsatisfied patient after treatment of nasal bone fractures. For obtaining satisfactory result, cause of injury and state of deformities and associate injuries such as nasal septal deformity should be evaluated properly and proper treatment should be applied.

• Korean Journal of Cognitive Science
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• v.21 no.1
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• pp.25-45
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• 2010

If color and motion direction of random dots in the central region was combined in opposite fashions with those of random dots in the peripheral region, the color of dots with a particular direction in the peripheral region is perceived as that of dots in the central region, known as color-motion mis-binding phenomenon. In the present study, it is investigated whether mis-binding would happen even if the central and peripheral region do not have a common three-dimensional surface. In the first experiment, the dots in the peripheral were presented in a different depth plane with use of binocular disparity, and in the second experiment the disparity of dots in the peripheral region was randomly selected from a given range. The results showed that the magnitude of mis-binding was weakened, but not completely disappeared even when two regions did not have a common 3D surface. These results indicate that the surface information from motion and stereodepth may influence in the process of color-motion mis-binding.

• Journal of Arbitration Studies
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• v.17 no.3
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• pp.31-56
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• 2007

The purpose of this thesis lies on building the foundation for the further activation of trade among the Northeast Asian countries such as South Korea, Japan, China, Russia, and North Korea through an analytical comparison of their arbitration systems. Further activation of trade cannot be reached without previously building safety measures on the negotiation of exports, the control on defective imported merchandise, the returns on investments, and the stable management of businesses. Throughout this thesis an analytical comparison of these five countries' most important areas on arbitration will be carried out. These areas are the arbitration laws and organizations; the structures of the laws; scope of arbitration; form of arbitration agreement, appointment of arbitratiors, place of arbitration, hearing, court assistance in taking evidence, governing law, decision making by panel of arbitrators, form and contents of awards, effective of award, recourse against award, recognition and enforcement of awards. etc. It was found in each of the areas cases to be identical, similar or verydifferent; also, cases unable to arbitrate. This phenomenon was found to occur due to the differences in political and economic systems and perception of arbitration among these countries. Additionally, this thesis points out what should each country do for its integration. It is also suggested the organization of a common arbitration research body to continue the efforts for raising the awareness, building trust, and mutual recognition among the countries to ultimately create a common arbitration system. Lastly, it is a personal will that this thesis will serve as the starting point for in depth researches in each of the presented areas.

• The Research Journal of the Costume Culture
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• v.18 no.6
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• pp.1318-1330
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• 2010

The 21st century is the age when a sensational image has more explanatory power and can deliver a more powerful message than a message consisting of logical thinking. Powerful visual images create a big impact on many people throughout the world, overcoming linguistic barriers and even replacing language as a means of communication. In the fashion field, the concept and power of visual images within the new multimedia of the 21st century are becoming increasingly important. In recent years, other than the above methods, videos, movies and animation features have been produced directly to enhance visual effects and attempts are increasing to use these new tools as communication methods. This study focuses on animation contents that have been used in the fashion industry to overcome prejudice of luxury international brands that feature images that emphasize value, quality and heritage. The purpose of this study is to focus on the specific character of fashion animation in order to overview the concept of 21st video fashion communication and to show how the collection concept that includes color and detail places an emphasis on visual images. Analysis of previous research, theoretical research through literature and case study on Prada fashion animation led to the following conclusion. The common features of two different Prada fashion animation show that both animation have the following features in common : realism, dramatic impact and convergence for expression methods, and creativeness, hybrid and a happy ending for contents. Beginning with this study, I believe that various angles of interest and concern about communication in the fashion world, which is a social and cultural phenomenon that changes rapidly, can be will be looked at and learned from.

• Proceedings of the Korean Society for Language and Information Conference
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• 2001.06a
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• pp.199-225
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• 2001

The main goal of this paper is to investigate and compare English, German and Korean non-head-bound-intensifiers such as English ‘x-self’, German ‘selbst’, and Korean ‘susulo, casin’. That is, this paper is mainly concerned with the semantic domain where the respective contributions of the expressions in question overlap. The phenomenon under discussion with the label “intensifiers” is regarded as universal, which provides the ground of the comparative/contrastive or semi-cross-linguistic study of this paper. Not only the semantic concept of intensification by these expressions but also the combination of grammatical features or syntactic behaviours thereof seem to have highly invariant common denominators among the wide varieties of languages, even if they come from apparently different language families. In comparing English, German and Korean intensifiers, this paper is interested in the more general features of the expressions in question rather than some language-specific idiocyncracies. Intensifiers work similarly not only in English and German, but also in Korean. Each of three languages under investigation provides some sort of a safegard against confusing instances and misleading judgements on the issues under discussion. Morphologically, however, English expressions in question agree with their rele-vant NP in number, gender and person. Whereas German and Korean counterparts do not have such specific morphological properties. Intensifiers in their non-head-bound-use are subject-oriented, just as in their head-bound use. Non-head-bound-intensifiers differ from head-bound-intensifiers mostly in their syntactic behaviours or distributional properties, whereas they share the semantic domain “intensification” regarding relevant subject-NP. They introduce an ordering and distinguish center and periphery, and ‘self-involvement (directness of involvement)’seems a additional possible characterisation of the relevant dimension of these intensifiers in common. An assertion of identity also can be reg

• The Journal of Korean Institute of Communications and Information Sciences
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• v.39B no.10
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• pp.674-683
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• 2014

Multi-hop wireless networks has become common phenomenon according to a development of wireless communications and an increase of usage of wireless link. ARQ is one of the common protocols in link layer and can improve a link performance recovering packet loss in wireless link. However, ARQ cannot sufficient to assure a end-to-end performance because ARQ only manages the ARQ's own link. In this paper, we propose a new retransmission persistence for ARQ in multi-hop wireless network to satisfy the end-to-end performance. The proposed scheme can aware a bottleneck link according to the exchange of link information between ARQs and can support the end-to-end performance by managing a retransmission persistence. OPNET simulator is used to evaluate the performance of the proposed scheme and results show that proposed scheme can improve the end-to-end performance with satisfying a requirement of entire wireless section.