• ETRI Journal
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• v.43 no.5
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• pp.812-824
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• 2021

Recently, with an increase in Internet usage, users of online social networks (OSNs) have increased. Consequently, privacy leakage has become more serious. However, few studies have investigated the difference between privacy and actual behaviors. In particular, users' desire to change their privacy status is not supported by their privacy literacy. Presenting an accurate measurement of users' privacy status can cultivate the privacy literacy of users. However, the highly interactive nature of interpersonal communication on OSNs has promoted privacy to be viewed as a communal issue. As a large number of redundant users on social networks are unrelated to the user's privacy, existing algorithms are no longer applicable. To solve this problem, we propose a structural similarity measurement method suitable for the characteristics of social networks. The proposed method excludes redundant users and combines the attribute information to measure the privacy status of users. Using this approach, users can intuitively recognize their privacy status on OSNs. Experiments using real data show that our method can effectively and accurately help users improve their privacy disclosures.

• Geomechanics and Engineering
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• v.27 no.6
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• pp.615-626
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• 2021

The main objective of this study is to present a fast and reliable approach to predict the swelling potential of clay-bearing rocks. Investigations showed that there is a good correlation between the swelling potential of a rock and its desire to absorb water due to its clay content which could be measured using the "Contact Angle" test as one of the most common ways to determine the wettability. In this test, the angle between a water drop and the flat rock surface on which it rests is measured. The present method is very fast and returns repeatable results and requires minimal sample preparation. Only having a saw-cut surface of a sample with any shape is all one needs to perform this test. The logic behind this approach is that the swelling potential of a rock is a function of its mineral content and molecular structure, which are not only distributed in the bulk of the sample but also reflected on its surface. Therefore, to evaluate swelling behavior, it is not necessary to wait for a sample to get wet all the way to its "internal structure" (which, due to the low permeability of clay-bearing rocks, is very slow and time-consuming). Instead, one can have a good sense of swelling potential by studying its surface. Parametric studies on the effect of moisture content, porosity, and surface roughness on the contact angle measurements showed that using a saw-cut oven-dried sample is a convenient way to evaluate the swelling potential by this method.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2006.11a
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• pp.212-215
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• 2006

The Beautiful rest room is simple how to think. We need to understand that excretion is important as much as eating. When we didn't have foods, eating was important in itself no matter what our lives environments. But now we want to eat in more dignified and more cultural place. Most of restaurants spend money on adjusting place for the consumes' desire. It is same way about rest room, it is time to change our rest room to place of rest and speculation over the place which we fix our natural urge. We can fix our natural urge, take a rest, and get creative ideas in more convenient, more healthy and more comfortable. It is time for us to change out thought about rest room; it is not dirty and stink place, but civilized living place like developed country. Also, we need new concept to take a triangular position about rest room is one of structure over just decorations. This research suggest new public rest room without precedent based on instance analysis about rest room inside and outside the country.

• Journal of The Korean Digital Architecture Interior Association
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• v.8 no.2
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• pp.39-46
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• 2008

Current architecture can receive support of and command various ways of expression by more advanced technology of the present time, this means the formation of changeable external design of building, and has the tendency to be interactive non-rheological shape. Accordingly surface of building is decorated not only by the basic function and the expression of information, but also by complex narrative image structure or text, so far as recognizes human as the subject of communication, and is trying the artistic expression interacting with the general public. In various expressive tendency of current architecture surface design, such an approach from a view of an interactive art trying the communication between architecture, art, and human has the meaning of suggesting the direction of directing emotional architecture giving a present to the morderners who are growing more and more an earnest desire for experiencing culture and art in their daily life.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2007.05a
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• pp.193-198
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• 2007

The propose of this study analyze an expression method of a surface in commercial buildings, and it is to show an example of a surface design in Manhattan. In particular, I focus on the following three categories : representation element of surface image : materials and structure method, the property of transparency, and an electronic surface and media screen. Unlike the past era in which surface design in commercial buildings was viewed just as a mean ornament, it has become more important in the presently era because diverse expression technologies in surface design makes architects express there creative ideas. Besides, the diversity of surface design expands the concept of cultural space as it provides various graphic element that human desire for multi-cultures. So diversity of surface will accelerate.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.1253-1256
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• 2003

These days, companies have to process enormous information and knowledge to satisfy desire of customers. The mere storage of them is no longer a significant problem because of the immense progress information technology has made during the past years and decades. It is important to deliver the right piece of information to the right person at the right time. Consequently, Knowledge management which supports the exchange of relevant information within company organization structure is of special interest for current enterprises. To solve this problem, a concept of the Knowledge management system is introduced in this paper based on the ontology technology. An ontology can describe all relevant information about documents, products, organizational structures or the users, their interests and experiences and be understood by everybody.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2003.04a
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• pp.167-174
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• 2003

It is absolutely natural to be interested in durability and safety of the structure under shear behavior. To fulfill this desire, a comparison on the shear behavior between steel fiber reinforced concrete both simple and continuous beams is done to use in the field working. Several operations are conducted : First of all, plan for optimal combination is standardized. Second, resistance for shear has been generalized in that it is decided by combination of individual elements. Third, as the fracture of tensile bar leads to destruction of specimen, shear behavior of whole specimen is decided by stress working on tensile bar. It should be generalized for other specimens also. Forth, evidence of the softness of steel fiber reinforced concrete beam by experiment lead to application in the fields. Finally, numeral values of the steel fiber reinforced concrete are analyzed and the result is compared to those of experiments. With these consequences, this study was done for the application to dynamic structures such as bridges and the repair and rehabilitation.

• Journal of the Korean Society of Costume
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• v.15
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• pp.149-166
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• 1990

Korean clothes is traditional folk costume native to Korea, Which is in Korea clothes. The past Korean costume was developed in the native costume, together influenced by chinese costume. But in the late Yi dynasty the contact with western countries brought about a turning point in Korean costume history, with rapid growth of economy since Korean war in the 1950's, the magnification of industrial structure, the development of productive technique, transformation of consumption pattern and the development of communication have been increased concerns for the western costume. In 1953 the introduction of nylon which was imported from Japanese brought about a fuming point in clothing habits. In 1967 the development of the fiber industry got a firm stand in ready-made clothes. Consequently our traditional Korean clothes was regarded as nonfunctional, nonproductive and it was pushed out of daily life little by little and it was deprived of the function of ordinary costume by the influence of western costume. But in these days the Korean clothes appears as the desire of pursuing traditional style in addition to mordern style of Korean clothes.

• Proceedings of the Korean Society for Language and Information Conference
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• 2007.11a
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• pp.42-53
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• 2007

Looking back the history of formal treatment of linguistics, we cannot disregard the contribution of possible world semantics. Intensional logic of Montague semantics, DRT (Discourse Representation Theory), mental space, and situation theory are closely related to or compared with the notion of possible world. All these theories have commonly clarified the structure of belief context or uncertain knowledge, employing hypothesized worlds. In this talk, I firstly brief the pedigree of these theories. Next, I will introduce the recent development of modal logic for the representation of (i) knowledge and belief and (ii) time, in which belief modality is precisely discussed together with the accessibility among possible worlds. I will refer to BDI (belief-desire-intention) logic, CTL (computational tree logic), and sphere-based model in belief revision. Finally, I will discuss how these theories could be applied to the further development of analyses of natural language.

• Journal of the Korea Furniture Society
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• v.12 no.2
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• pp.61-71
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• 2001

In furniture design, it is very important to choose adequate materials. Transparent materials provide expectations and reveals unique effects unlike others. As transparent materials, glass and acrylic have light and fresh impression from their transparency, and are frequently used in structuring neat space. Despite its good merits, glass is not able to satisfy designers desire in making various shape and structure. It has defect in manufacturing process because it requires professional, specialized studio. Compared to glass, acrylic has its merit in processing and stability, and also is very economical. Acrylic is easily used with woodworking tool. In addition, acrylic has unique texture. This study is on the attempt to apply acrylic to the furniture as artistic element.