• Restorative Dentistry and Endodontics
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• v.18 no.1
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• pp.27-37
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• 1993

The purpose of this study was to determine the fluroide release levels of new fluoride-containing liner/base cements and the fluoride uptake by dentin surfaces. Ten specimens of each brand (Fuji ionomer Type III, Fuji Lining LC, Timeline, Vitrebond and XR ionomer) were made, polymerized and placed in fluoride-free distilled water at $37^{\circ}C$, 100% relative humidity for 24 hours. The extracting solution of specimen was exchanged and fluoride release was measured daily for the 30 days. For fluoride uptake study, twenty-five extracted human lower molars were sectioned longitudinally in the mesiodistal direction with a diamond disc. Five teeth were filled with each material and then stored at $37^{\circ}C$, 100% humidity for 4 weeks. Fluoride uptake by dentin from the test materials was evaluated using electron probe micro X-ray analyzer. The following results were obtained : 1. The amounts of fluoride release showed no significant difference between Fuji ionomer Type III and Fuji Lining LC, but showed significant difference between other groups. XR ionomer released significantly greater fluoride than any other group(P<.001). 2. All the materials have a burst effect which more fluoride released in then first 3 day and showed significant decrease over the test period (P<0.001). 3. XR ionomer group showed fluoride penetration to approximately $50{\mu}m$ deep in dentin. But other material groups showed very little fluoride uptake by dentin.

• Journal of Science of Art and Design
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• v.4
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• pp.5-25
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• 2002

It is not easy to get more attention as a prominent advertising expression among various types of numerous advertisements. Due to the voluminous expansion of advertising communications and the change of the media, new advertising creatives must be needed for serving to differentiate the message , inviting audiences to participate more positively in advertising communications This thesis aims at reviewing the absence as an advertising creative. And this thesis is about the significations of the absence. Chapter I describes the aim of this thesis about the absence as an advertising creative And Chapter II introduces the general concept, perception of the absence and its possibilities as an advertising creative And also mentions about the absence as one of paradoxical expressions with rhetorical theories as well as semiotics. Chapter III deals with the signification of the absence with introducing semiotic methods such as the theory of R. Barthes Chapter IV discusses the signification of the absence as an advertising creative talking into consideration of semiotic theories. And I categorize the types of the absence in advertising expressions. The absence is categorized into 5 types in this thesis. Type (1) is the absence of product which is supposed to be advertised, type (2) is the absence of product and make product image located out of main image of an advertising expression for introducing features of a product itself. And type (3) is the absence of the imaginary audience to invite an audience to participate more spontaneously. Type (4) is the absence of headlines, and type (5) is the absence of almost all visual images and verbal message but a corporate symbol or brand logo. The signification of S types of the absence can be described on the basic of semiotic theories, especially the theory of R. Barthes. It's my hope that this thesis about the absence as an advertising creative will serve as the basic theory for the empirical research about advertising expressions containing images of the absence.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.277-287
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• 2021

The purpose of this study is to establish a model that can quantitatively diagnose personal color. Representative color systems for personal colors have limitations in that it oversimplify personal color diagnosis types or it is difficult to distinguish objective differences between diagnosis types. To develop a brand new color system that enhances this, a PCCS color system capable of logical color was introduced and reclassified based on the four main properties of color. Twenty diagnostic types, which are more diverse than the existing color system were proposed and a quantitative method was used to evaluate the degree of harmony with a subject to find an optimized type of subject. The experimenter's individual competency and subjective intervention were minimized by devising a matrix in which a type suitable for the subject is derived when the coded evaluation result is substituted. Finally a quantitative diagnosis model of personal color consisting of three stages: property diagnosis, coding, and seasonal diagnosis was constructed. It can be seen that this will give diversity, reliability, and accuracy to the existing diagnostic methods.

• Journal of the Korea Fashion and Costume Design Association
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• v.21 no.2
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• pp.57-73
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• 2019

This study was carried out to offer basic data that can be used for the production of outdoor pants for active senior males, which is emerging as a new consumer bracket in the rapidly aging society. To this end, this study modified and complemented the patterns of existing outdoor pants for active senior males, that received the most positive evaluations. On the basis of the research and outdoor wear assessment results, this study proposed the matters to consider in the manufacturing of outdoor pants for active senior males. As a result of the existing outdoor wear's wearing assessment, the pants of brand C were revealed to be the best. This study actually designed research outdoor wear by modifying the problematic parts by adding and subtracting spare length or circumference, on parts where fit satisfaction was low, and by referring to the selected brands' patterns. The research outdoor pants were designed by referring to the preferred outdoor types and colors that were revealed in the survey results. The wearing assessment was conducted by comparing the manufactured research outdoor pants and the existing outdoor pants, which were selected as the best outdoor pants. Consequently, this study verified the fit of the research outdoor pants was superior to most items. This study proposed the final patterns of outdoor pants suitable for active senior males through the modification of several items that required some improvements revealed via the wearing assessment of the research outdoor.

• Fashion & Textile Research Journal
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• v.21 no.4
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• pp.432-451
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• 2019

Companies and brands that practice sustainability pay attention to New Media due to its ability to build a sustainable relationship between companies and consumers. The need for research on specific roles, characteristics, and social media effects on eco-friendly advertising has had rapid growth in marketing programs for sustainable activities especially shown through social media. Information about sustainable fashion has spread to consumers through social media, and multifarious efforts have been made to attract the attention of youth. Despite the dramatic increase in eco-friendly marketing through social media as a part of sustainability, there is a lack of research on the major influences of emotional factors such as ad color and expression in social media. In this context, it is meaningful to identify relationships between emotional responses, advertising value and consumer behavior of sustainable fashion brands in Instagram and implement a suitable advertising type (color vs expression) for consumers. We used 366 responses for the final analysis. Data were analyzed by factor analysis, structural equation modeling using SPSS 18.0 and AMOS 18.0. The results of this study suggest that emotional responses, advertising value have a significant effect on the flow. This study expands on a previously limited research field by verifying consumer responses to image advertising on Instagram, rather than general sustainable fashion marketing. The study results also provide meaningful implications for a relation formation between customers and fashion brands vis-${\grave{a}}$-vis sustainable social media marketing.

• Korean Chemical Engineering Research
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• v.57 no.5
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• pp.606-610
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• 2019

In this study, we demonstrated that the nonenzymatic glucose sensor based on the flexible carbon fiber bundle electrode with BDD nanocomposites (CF-BDD electrode). As a nano seeding method for the deposition of BDD on flexible carbon fiber, electrostatic self-assembly technique was employed. Surface morphology of BDD coated carbon fiber electrode was observed by scanning electron microscopy. And the electrochemical characteristics were investigated by cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry. This CF-BDD electrode exhibited a large surface area, a direct electron transfer between the redox species and the electrode surface and a high catalytic activity, resulting in a wider linear range (3.75~50 mM), a faster response time (within 3 s) and a higher sensitivity (388.8 nA/mM) in comparison to a bare CF electrode. As a durable and flexible electrochemical sensing electrode, this brand new CF-BDD scheme has promising advantages on various electrochemical and wearable sensor applications.

• The Korean Journal of Archival Studies
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• no.32
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• pp.219-236
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• 2012

It is well known that records management is closely related to democracy, and the records management 'innovation' in Korea did also aim to reach democratic 'accountability' and 'governance'. Likewise, the first reason this article deals with the establishment of archival community in the East Asia is to help promote democracy and form a co-operative relations in the region through records management. Secondly, the distorted view of history easily found in the history textbooks of each countries should be corrected for the 21st East Asia in peace. Records and memories in the past are main components for the present and the future. A great many records to solve the disputes over history still remains inaccessible at large in the archives of the East Asia. A coming archival community will endeavor to disclose and share the historical records for harmonious awareness of history. Cooperation and solidarity within archival community in the East Asia featuring democratic accountability, governance and more records disclosure can be a brand-new start for peace and 'better' democracy in his region.

• The Journal of the Korea Contents Association
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• v.21 no.10
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• pp.127-137
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• 2021

YouTube beauty content channels that utilize various topics and formats are undergoing quantitative and qualitative expansion. This study selected the top five channels represeting major domestic and foreign beauty brands, fashion magazines and beauty influencers through Statista and conducted a case study focusing on them. It will connect to a strategy for increasing beauty-related content by comparing content characteristics according to content producers. Also, it will help to reveal what types of content will be appealing more attractive to consumer. The result has shown that the growth of YouTube platforms has transformed passive consumers into new communicators by diversifying sources of product information. In addition, as content of different type was consumed by different producers, producer-oriented content was produced rather than objective journalistic gaze. Therefore, it was found that the delivery of 'brand values' that can strengthen the relationship between consumers and brands along with various entertainment elements that are effective for millennial in the future.

• Journal of Korea Society of Industrial Information Systems
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• v.25 no.6
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• pp.125-141
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• 2020

This study focuses on the impact of service expansion for tax service customers and the change in customer's re-use intention, according to the degree of psychological ownership of internal employees when expanding differentiated service areas and the reinforcement of profits according to the representative's tendency. The effects of emphasis, cost emphasis, and double emphasis (revenue and cost dual emphasis) were analyzed. As a result of the study, it was possible to see the changes in the customer's re-use intention according to the psychological ownership of internal workers and satisfying users' customer satisfaction. In addition, it is meaningful to enable the tax agent to pursue a change in the direction of future-oriented service provision, and a new research direction was suggested in terms of the professionalism, quality, and service expansion of the tax agent.

• The Journal of the Korea Contents Association
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• v.21 no.6
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• pp.138-154
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• 2021

'Live commerce', a brand new format of online shopping, is actively promoted in China recently. This research focused on 'Taobao-live', China's largest live commerce platform to investigate the relationships among para-social interaction, source characteristics (e.g., trustworthiness, attractiveness, and expertise), perceived ease of use, perceived usefulness, and shopping intention based on Technology Acceptance Model. A total of 536 Taobao live users were recruited through the Chinese research platform. The results showed that para-social interactivity positively affected perceived ease of use and usefulness, whereas the source characteristics had no significant effect on consumers' perceptions. Furthermore, higher perceived ease of use generated higher perceived usefulness, and both perceived ease of use and usefulness positively influenced consumers' intention to shop through Taobao live. This research can provide theoretical background for understanding the potential of live commerce platforms and help brands come up with effective online shopping strategies using live commerce platforms.