• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.6
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• pp.127-135
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• 2017

Recently, the most brand new vehicles contain a lot of ECU for comfortable and safety driving environments. For efficient communication network among ECUs, almost car manufactures use CAN protocol which enables to decrease the number of communication lines dramatically and ensures higher data transmission reliability. However, CAN dose not ensure authentication of CAN data frame. So it is vulnerable to replay-attack on CAN data frame. This paper proposes the practical message authentication technique for In-vehicle CAN. To transmit data and MAC together, it is very useful to use the short length of MAC after considering limited space of CAN data frame. However to ensure safety of MAC, additional technique is required. We suggested a message authentication technique that can be usefully applied to build a safety network inside the vehicle because it considers limited data payload of CAN.

• Journal of the Korea Convergence Society
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• v.11 no.1
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• pp.109-117
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• 2020

This study aims to analyze typographic expressions used in recent fashion trends from the perspective of conceptual art and thus identify a variety of meanings. Towards this end, theoretical considerations were made vis-à-vis the main concepts of research, such as typography and conceptual art, and the ready-made, documentation, intervention and language, which are the expressive features of conceptual art, were applied to fashion typography as analytical frameworks. The results are as follows. The ready-made appears in a way that borrows or transforms the visual identity of other brands, and documentation is utilized in a way that lays tautological or contradictory texts together. Intervention arises, while leading to more complex layers of meaning when borrowing the visual identity of the brand, which is conceptually irrelevant. The language is expressed as statements about contemporary social issues, such as environmental protection, ethical consumption and gender problems. Based on the findings of this study, it can be confirmed that in fashion design, typography serves as an effective marketing tool and a medium of social statements. Moreover, it can expand into the possibility of generating new meanings as a novel way of visual expression.

• Journal of the Korea Fashion and Costume Design Association
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• v.16 no.1
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• pp.27-39
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• 2014

The purpose of this study is to investigate the formative characteristics and the aesthetic values of denim dresses from the 19th century until the $20^{th}$ century and analyze those changes shown in Paris Milan London New York collections from 2001 S/S to 2013/14 F/W. The results of this study are as follows; 1) In the mid-$19^{th}$ century, the denim pants were working suits. In the 1920's, they started to be recognized as ordinary clothing and they were supplied to women in World War II. In the 1950's, denim pants stood for youth and resistance, and they became popular among teenagers. In the 1960's, hippies who protested against the Vietnamese War would wear worn-out denim pants symbolizing peace and freedom. As they became more common in the 1970's, people all around the world wore the clothes. In the 1980's~90's, the waves of high class brand fashions brought in sensualism, extravagance, reactionary tendency, and so forth. Consequently, the aesthetic values of denim dresses have connotations of practicality, resistibility, ornamentation and femininity. 2) Practicality in recent collections is represented in classic fashion which features typical details and raw denim and modern fashion which is made with glossy denim and minimized details. Resistibility is represented in avant-garde fashion which features deformed or over-layered jackets and pants with damaged denim and vintage fashion which is made with wash-out and wild stone denim. Ornamentation is represented in ethnic fashion which is made with wash-out denim and ethnic prints and romantic fashion which features details such as ruffle, frill and shirring as well as lace and flowery decorations. Femininity is represented in sexy fashion which designs to expose or to focus in women's body and elegant fashion which is made with soft and glossy denim and hourglass silhouette.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.35 no.9
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• pp.799-804
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• 2007

The behavior of spray emanating from an injector to be employed in a liquid-propellant thrust chamber is investigated by optical measurement techniques. The injector has eight holes, each of which has 30 cant angle from the center-axis with the diameter of 0.406 mm. In order to examine an atomization process according to the spray-generation conditions and the evolution along spray downstream, variational features in the velocity and size of droplets obtained through Dual-mode Phase Doppler An 799emometry (DPDA) are delineated and discussed together with instantaneous plane images captured by using Nd:Yag laser sheet beam. A categorization of spray-flow regime representing the atomization and turbulent nature is made through evaluating the non-dimensional parameters, i.e., Reynolds number and Weber number based upon the theoretical injection velocity. These qualitative and quantitative data of spray breakup will be a firm basis for the design of brand-new thruster

• Journal of the Korean Society of Costume
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• v.66 no.4
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• pp.94-110
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• 2016

The purpose of this study is to delve into the identity of the swag style which has diversified into various forms by exploring the phenomenon, formative characteristics and the internal values of the swag style in modern fashioin. This study discusses the concept and the socio-cultural meanings of swag from the perspective of Jean Baudrillard's hyper-reality, and a form of existence. The classifies the swag fashion styles into parody, hip hop and collage-type mix-and-match. Expressive characteristics of the swag look in modern fashion are as follows. First, the swag look utilizes the parody technique. In the mid-2000s, the look parodied brand logos as a form of self-mocking and active self-derision toward cheap imitations. Second, the swag look borrows from the expressive factors of the hip-hop style. Born as a sub-culture based on music, hip-hop has become a way of life, as its nature became multi-cultural and trans-cultural while its fashion style gained popularity globally after the 1980s. Third, the swag look barrows from the pop-type collage form as it mixes-and-matches costume items based on the expressive characteristics of hip hop, and this can be seen through items being used in new, non-formative and free styles. Comic aesthetics is revealed in parodied expression, hip-hop factors and collage-style mix-and-match. Swag as a hyper-reality manifests itself in various natures: humorous nature, negative nature and deconstructive nature through reflection and re-enactment of reality, transmutation and distortion of reality, and absence of reality respectively. However, it does not have a binding nature, which is the norm for subcultures. This characteristic, in combination with it having internal lightness, strong meaning of communication, and a sharing of self-contentment, distinguishes itself from the general meanings of existing parody fashion, hip-hop fashion and collage fashion.

• Journal of the Korean Society of Costume
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• v.63 no.7
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• pp.121-133
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• 2013

The globalization of the world, fueled by the Internet, made possible for individuals to access the cultures around the world, other than their own, easier than ever before. But among those rapidly sought out sub-cultures, the video gaming industry, once a niche market mostly for nerds and geeks, now has become one of the biggest entertainment businesses in the world. In a video game, one of the critical elements that could determine its success or failure is the characters featured in the game. And as the countless number of animated characters from many different video games from the past few years have become incredibly popular among the audiences around the world, the expectations from the fans also grow higher every time a new game comes out. Ultimately this has forced the video game developers to come up with more unique and interesting characters for their video games. And at this point, where a video game character is more than just fictional fantasy but a brand to be recognized, it is worth paying proper attention to the video game characters that represent Korea. Hence in this study, we will take a look at Han Ju-Ri, a Korean character featured in Super Street Fighter IV, a competitive fighting game developed by Capcom, one of the world's most recognized video game companies that started its life as an arcade video game, developer but eventually ventured its business into the online world. The study will propose a complete overhaul of the character by incorporating Korea's own traditional looks.

• The Journal of the Korea Contents Association
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• v.8 no.4
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• pp.130-136
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• 2008

With the rapid development of information technologies, various types of game devices have been created. Moreover, the game contents are once created, they can be easily reused on several other devies without depending on their platform or media, which phenomena is so called as one source multi use (OSMU). Especially young gamers are good at not only playing the famous computer games but also good at using and utilizing the brand new and the latest mobile devices, they might be the major consumers in the area of mobile games in the near future. This paper discusses and proposes several points to be considered when a conventional computer game to be transformed into a mobile game. Since the points suggested are very useful when the conventional game is to be ported to the mobile devices of inferior performance, it is expected that more profits could be achieved in the market of mobile game with less investment and effort.

• Korean journal of food and cookery science
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• v.22 no.3 s.93
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• pp.299-306
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• 2006

The numerous varieties of coffee beans contain a wide range prices and qualities. While the varieties of green coffee beans can generally be distinguished by their appearance, this visual criterion is impossible after the roasting process. Therefore, we need to develop a classification method or device. In this study, the potential of a new type of electronic nose, fast gas chromatography based on a surface acoustic wave sensor(SAW), was evaluated for the classification of origins and blended commercial brands in roasted coffee beans. Eight blended commercial brands and the origins of four similarly roasted ground coffee beans(with no significant difference of color) were rapidly(90 sec/sample) classified. The reproductive results were easily understandable over the aroma image pattern by $VaporPrint^{TM}$. In conclusion, GC-SAW electronic nose can be applied to the classification of origins and commercial brands in roasted ground coffee beans and to e evaluation of the similarities and differences of volatile pattern between samples.

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.1352-1359
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• 2010

It is said that the number of people using public transportation has risen about 220 thousand over 3 years which was 1019 people average a day in 2006 and 1041 people last year. It is also said that the number of people using subway has increased by 198 thousand and the number of people using bus by 22 thousand. Can you imagine how many door engines work at the same time if we count Metro line no.1 to no.4 which consist of total 120 subway stations? A train has 80 door engines and Metro line trains have 9600 door engines all together. Which explains it quite simple how much Satefy, Durability and Sustainability need to be focused in Door Engines. Although it's not the whole part of door engines in Seoul Metro Line, And Metro No.4's door engines are operated by the method called mixture of mechanical type and belt type. And the last one is being used in the brand-new Metro train line No.3 which is being operated by electricity motor, instead of the old methods which use air pressure to operate a door engine. I'm sure you will agree that Safety is the first priority of Metro train and next follow comfortability and quickness. I think all I've talked so far make it the first step for the Safety of Metro train for you to understand the unit of a Door Engine.

• Journal of the Korean Society of Clothing and Textiles
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• v.40 no.2
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• pp.203-220
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• 2016

This research analyzed characteristic changes in trading areas and the success factors of popular fashion trading areas (Garosu-gil, Dongdaemun, and Itaewon). This research adopts a social network analysis method to semantically analyze trading areas. Articles on the three fashion trading areas were located through KrKwic software to extract keywords and calculate word frequency. Keywords with high frequency were placed through NodeXL software to identify relationships among keywords. Researchers created a network of relationships among trading areas and between past and present of trading areas to analyze and visualize. In the past (2008-2009), the trading areas of Dongdaemun, Garosu-gil and Itaewon were placed horizontally with a limited number of shared keywords between them. However, the three trading areas retain diverse rage of keywords and an organic realtionships five years later (2013-2014). Compared to the past, all three areas see the emergence of relevant fashion keywords such as 'designer', 'design', 'brand'. Additional cultural keywords such as 'culture/art/performance', 'exhibition', and 'event' have commonly appeared and imply that related industries are an important factor as well. Fashion companies that consider evaluating areas for a new store opening need to understand the trading area characteristics and select the most suitable area. In addition, it is necessary to equip the trading area with basic fashion elements as well as relavant industry when the government tries to develop fashion trading areas.