• Proceedings of the Korean Information Science Society Conference
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• 1999.10c
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• pp.137-139
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• 1999

concurrent reactive system은 일반적으로 매우 많은 다른 행동들(different behaviors)을 보여 주기 때문에 설계하기가 어렵다. 또한 한 시스템에서의 구성 요소들 간에 상호작용을 함으로 전체 시스템의 상태를 나타낸다면 전체 상태를 각 구성요소의 상태들의 곱으로 나타내지므로 복잡도는 지수의 곱으로 나타내 질 것이다. 따라서 단순한 테스트로는 시스템 특성의 정확성을 검증하기 위해 모든 상태를 확인할 수 없다. 본 논문에서는 concurrent system의 고전전 문제인 dining philosophers problem을 상징적 기호 표현방법을 이용해서 그 시스템의 정확성을 검증하고 또한 상태 공간 폭발 문제-상태 공간의 크기가 시스템에서 구성요소의 복잡도와 수가 동시에 지수적으로 증가하는 문제-를 어떻게 해결할 수 있는 가를 제시한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.641-644
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• 2017

Usage of LTE(Long Term Evolution) technology is expanded to industrial an emergency service field beyond commercial communications of mobile internet focused on smartphone. In this paper, transmission performance of LTE technology be supplied to various service area is analyzed on the level of application traffics. Performance is evaluated with compter simulation based NS(Network Simulator)-2, CBR(Constant Bit Rate), VBR(Variable Bit Rate File) traffic is used as simulation target. Results and methods of this paper can be used for research and developmemt of LTE based networks.

• Journal of the Korea Society of Computer and Information
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• v.6 no.3
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• pp.137-142
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• 2001

Electronic Commerce are facing on social upheavals by a rapidly advanced Open Network such as Internet, and the crest of a digital boom in the economic side for the 21th century. As the Internet develops into a robust delivery channel for commerce, it will be important to understand the characteristics of on-line markets. This paper addresses price competition in Internet Electronic Commerce by reviewing current academic research, discussing the implications of price competition, and proposing areas for future study.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.05a
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• pp.342-343
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• 2021

The color combination effect is greatly influenced by individual experiences and preferences. In this paper, we will look at the associative words of color. And the combination of color and language is accompanied by a symbol of human experience. In this way, the psychological treatment effect resulting from the color combination effect is also examined.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.601-602
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• 2020

본 연구에서는 질적연구방법인 Q방법론을 적용하여 대학생들을 대상으로 학과 점퍼에 대해서 어떤 생각을 가지고 있는지에 대한 주관적 평가와 인식 유형별 특성을 알아보고자 하였다. 제1유형의 경우 학과 점퍼는 학과에 대한 소속감을 주고 학과를 홍보하는 역할을 한다고 인식하였다. 또, 학과 점퍼를 착용하면 행동을 조심하게 되지만, 활동이 편하고 주변 사람들의 좋은 평가를 이끌어내며 나의 신뢰감을 높여주는 효과가 있다고 생각하는 것으로 분석되었다. 제2유형의 경우 학과 점퍼는 활동하기 편하고 유행을 따르지 않는 무난한 디자인이라 만족스러우며, 학교 갈 때 늘 착용한다고 하였다. 제3유형은 학과 점퍼를 착용하면 동질감과 소속감을 준다고 하였고, 학과 점퍼가 유행을 따라가는 스타일이면 좋겠다고 생각하며 학과 점퍼 착용에 긍정적이고 잘 맞는다고 생각하는 유형이다. 대학생들의 학과 점퍼도 하나의 유니폼으로써 기능을 할 수 있도록 학과의 이미지나 상징성을 잘 나타내고, 활동량이 많은 대학생들의 신체적 특징을 반영하여 맞음새가 우수한 학과 점퍼가 개발되어야 할 것으로 생각된다.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.141-142
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• 2022

세계무역센터를 대상으로 발생한 9.11.테러 이후 세계 테러 동향은 하드타겟에서 경성타겟으로 점차 변화하고 있다. 경성타겟으로 목표 변화는 테러리스트의 접근성, 대상의 상징성, 미디어 집중성을 고루 갖추고 있어, 테러리스트들의 의사 전달이 용이하기 때문이다. 경성타겟으로 변화와 함께 미디어를 활용한 테러 교육으로 자생테러(외로운 늑대)도 증가하고 있다. 2022년 7월 8일, 일본의 다중이용시설인 나라현 야마토사이다이지 역에서 총기테러 사건이 발생하였다. 야마가미 데스야가 자생테러범은 개조한 사제 총기를 일본 전 총리 아베를 향해 발포하여 과다출혈로 사망에 이르게 하였다. 위 사례는 세계 테러 동향의 변화를 반영한 사건으로, 경성타겟을 목표로 한 자생테러 형태를 보여주고 있다. 본 연구에서는 국내 다중이용시설 테러 발생 시 우선적으로 고려해야하는 고위험 테러유형을 도출하고자, 우리나라와 국가 경쟁력이 비슷한 G7국가의 다중이용시설을 대상으로 발생한 테러사례를 통계적으로 분석하여 테러유형별 위험도를 도출하였으며, 다중이용시설을 대상으로 자행되는 고위혐 테러유형의 위협을 차단하기 위한 테러안전관리 대책의 개선사항을 제언하고 있다.

• Journal of Digital Convergence
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• v.15 no.10
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• pp.93-101
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• 2017

This study investigate the effect of each type of search volume on the number of Facebook fans and the number of tourists. According to the hierarchy effect model, the effect of communication appears to be the sequentiality of cognition-attitude-behavior. Applying this theory, this study predicted that when consumers who have higher involvement and knowledge on specific cities through search behavior, they will be more active in information search through Facebook fan page subscription and will lead to direct tourism behavior. To verify the prediction, we examined the influences among search volume of Seoul shown in Google Trend, the number of fans of official facebook page named 'Seoul Korea', and the number of foreign tourists. As a result, the type of search keyword was divided into four categories: tourism attraction keyword, natural environment keyword, symbolic keyword, and accessibility keyword. The regression analysis showed that tourism attraction keyword and symbolic keyword have influence on Facebook fanpage 'Like'. In addition, facebook fanpage fan size have mediation effect between search volume and number of tourists. All in all, it would be useful to appeal to foreign tourists with a message that emphasizes tourism attraction and Korea-related contents.

• Korean Journal of Ecology and Environment
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• v.46 no.3
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• pp.419-428
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• 2013

We identified the diversity, geographical distribution, ecological characteristics of birds, trees, and flowers species designated as local government symbols as a means for understanding public awareness on biodiversity. A total of 114 species including 48 birds, 40 flowers, 36 tree species belonging to 40 orders 59 families 90 genus were designated as natural symbols. Pica pica (L.) in birds, Rhododendron schlippenbachii Maxim. among flowers, have also been designated as symbols. The tree Ginkgo biloba L. was designated with the highest frequency. Local governments located coastal area were selected bird species of the Laridae family and the tree species Camellia japonica L., of Pinaceae as their natural symbols. In contrast, local governments located inland have designated resident bird species such as P. pica and Columba rupestris (Pallas) and flower species from the Ericaceae as natural symbols widely distributed and easily observed throughout South Korea. However, many local governments have designated the same species as a natural symbol based on their size color and public appeal and popularity. The information about the popular species and their ecological traits are useful for establishing the criteria as flagship or iconic species selection and their roles in habitat conservation.

• Management & Information Systems Review
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• v.34 no.1
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• pp.103-120
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• 2015

This study tries to explain customer experience in retail stores from a holistic perspective including hedonic, economic, symbolic, and relational dimensions. We also attempt to empirically investigate the effect of each dimension of customer experience on the store attitude and store attachment and the differential influence of the store attitude and attachment on the commitment toward store. The major findings from empirical analysis are as follows. First, all four dimensions of customer experience positively impact on the store attitude. Second, symbolic and relational dimensions of customer experience have a positive effect on the store attachment while hedonic and economic dimensions don't. Third, the store attachment more positively influence the commitment toward store than the store attitude do. This paper extends the scope of the study on consumer experience in retail setting by broadening the dimensions of it and testing the differential effect of each dimensions empirically. The results of this research can provide useful implications for practitioners to build successful strategies on customer experience management in retail stores.

• Journal of Digital Convergence
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• v.18 no.11
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• pp.449-457
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• 2020

The visual representation of plants applied to traditional Korean ceramics is based on the consciousness and sentiment of the Korean people, and one can see the auspicious aspirations and exorcisms that people pursued at that time. These symbolic expressions have been extended in new and colorful meanings through the shapes and decorations of ceramics and their fusion. In this study, the phenomena of convergence expression seen in traditional Korean ceramics are divided into type and type, type and decoration, and their special meaning is analyzed. For this purpose, the shapes and decorations of plants used in traditional Korean pottery are considered based on the literature information. Chapter 2 gives a general analysis of plants that have meanings in their shapes and decorations and introduces their meanings. In Chapter 3, based on the characteristics and meanings of plants, it is divided into shapes and shapes, shapes and decorations, and the convergence of decorations and decorations, and presents newly manifested meanings through their fusions.