• International Journal of Control, Automation, and Systems
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• v.2 no.2
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• pp.247-255
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• 2004

The majority of real-world problems encountered by engineers involve simultaneous optimization of competing objectives. In this case instead of single optima, there is a set of alternative trade-offs, generally known as Pareto-optimal solutions. The use of evolutionary algorithms Pareto GA, which was first introduced by Goldberg in 1989, has now become a sort of standard in solving Multiobjective Optimization Problems (MOPs). Though this approach was further developed leading to numerous applications, these applications are based on Pareto ranking and employ the use of the fitness sharing function to maintain diversity. Another scheme for solving MOPs has been presented by J. Nash to solve MOPs originated from Game Theory and Economics. Sefrioui introduced the Nash Genetic Algorithm in 1998. This approach combines genetic algorithms with Nash's idea. Another central achievement of Game Theory is the introduction of an Evolutionary Stable Strategy, introduced by Maynard Smith in 1982. In this paper, we will try to find ESS as a solution of MOPs using our game model based co-evolutionary algorithm. First, we will investigate the validity of our co-evolutionary approach to solve MOPs. That is, we will demonstrate how the evolutionary game can be embodied using co-evolutionary algorithms and also confirm whether it can reach the optimal equilibrium point of a MOP. Second, we will evaluate the effectiveness of our approach, comparing it with other methods through rigorous experiments on several MOPs.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.45 no.6
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• pp.60-67
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• 2008

At present, RFID system is highly welcomed as a substitute system with its bar code recognition system and self recognition equipment. Consequently, the system has multi applications and can be complementing to its security. In particular, RFID system is significantly related with electronic transaction equipments : transportation card, ID card in check point, attendance sheet. Based upon these characteristic, the system is becoming extremely popular in the field of logistics, harbor and stock management, animal control and product circulation & distribution. In this dissertation, I would like to present a more efficient and stable remote entry control system with the network-based TCP/IP. It is a simple example of ubiquitous computing function. Above all, approved protocol system should be applied to the remote entry control function. Its efficient function with the applied approval protocol based-remote entry control system should be confirmed. Therefore, a preliminary test should be prerequisite in automatic entrance function with the embedded and TCP/IP-based RFID system.

• Korean Journal of Health Education and Promotion
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• v.33 no.5
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• pp.71-81
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• 2016

Objectives: Tobacco marketing encourages smoking initiation of non-smokers, especially adolescents, and it hinders quit intention of those who smoke or who attempt to quit smoking. Article 13 of the WHO Framework Convention on Tobacco Control(WHO FCTC) requests a comprehensive ban on tobacco advertising, promotion and sponsorship(TAPS). Ratified the Convention in 2005, Korea has partially implemented the provisions. However, online marketing regulations are still insufficient. Methods: Based on relevant national and international regulations, this research designed monitoring mechanism for online tobacco marketing and studied 1,404 websites to identify current situation of online sales and advertisement of tobacco in Korea. Results: This study found that online trade of tobacco products are overtly conducted, while tobacco advertising with flavoring and misleading descriptors are also prevalent. Also, online tobacco marketing facilitate adolescents' access to tobacco product and that advertising and promotion activities lead to tobacco purchase without difficulties. Conclusions: Fundamental solution to prevent online tobacco advertisement and promotion is banning online sales of tobacco and conducting a regular monitoring for compliance. Korean government should consider establishing an official surveillance system for online tobacco advertisement, followed by a comprehensive ban on TAPS to fulfill its obligation as a Party to the FCTC.

• The Journal of Information Technology
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• v.5 no.3
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• pp.19-34
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• 2002

The aim of this paper was to study the theoretical background of the convention industry firstly, in which will serve to seek for more efficient plan of promotion. As a result of it, it is found that the convention industry has the characteristics similar to service industry rather than manufacturing, as well as complicated, interdependent ones which are closely related to every field of industries. This paper also considers the advertising, human marketing, and public relations as measures of promoting the convention industry in order to maximize its promotion activities with the characteristics of service industry and establish the plan of promoting the industry. For the effective adoption of these measures in the convention industry, the measures is analyzed by considering the properties and degrees of some convention centers respectively after the strength and weakness of each measure shall be compared. As these measures are mostly shore-run projects, there will be necessary to keep in close touch with other complementary measures in adoption of measures of promotion.

• International Journal of Costume and Fashion
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• v.8 no.1
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• pp.36-52
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• 2008

Writer Hong Myung-hee, author of the novel Im Kkeok Jeong, provided an excellent description of the costume customs of the Chosun era, based on an understanding of various historical texts and literature by practical science proponents, and experience gained from the Hong household of Pungsan, a noble family of high standing during the Chosun dynasty. However, there is a tendency towards descriptions of late Chosun era customs, rather than 16th century customs, with the intent of heightening the image of what most people felt to represent Chosun and its prestige, thereby generating greater reader sympathy. Therefore, information on the costume customs of the novel 1m Kkeok Jeong is analyzed and re-formed to fit with the temporal setting of the 16th century. By providing data to aid visual understanding and re-creation, the intent is to accept it as material for the rumination of our ancestors and their lifestyles in the 16th century. The novel provides a good description of Chosun economic customs, in which cotton and hemp were used not only as fabric for clothes, but also as currency. The trade value of cotton drapery or hemp drapery with dimensions of 5 strand density at a length of 35 ja per roll was designated as 5 mal (about 90 liters) of rice by national law, but the actual value varied depending on the production of rice. Also, it is possible to confirm the existence of sang po with dimensions of 3 strand density at a length of 30 ja per roll, or 2 strand density seochongdae cotton, which was used only as currency due to the rough quality. Characteristics of the Chosun dynasty, a class-based society, are described through distinctions of attire. The writer's intent regarding the symbolic nature of attire reflecting social position, a characteristic of the entire Chosun period, is analyzed with the presentation of visual material.

• Journal of Distribution Science
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• v.14 no.12
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• pp.99-105
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• 2016

Purpose - In the present study, it has become the most important necessity in our daily lives that consumers' psychological factors affect the use of smartphones, and it has been analyzed through behavioral economic approaches. In this respect, the present study is intended to apply the heuristic theory and the prospect theory among behavioral economics theories to examine how psychological factors affect consumers' product selection. Research design, data, and methodology - In the present study, using smartphone repurchase as a dependent variable, whether regulatory focus effects have interaction effects on behavioral economic theories and behavioral economic effects such as possession (ownership) effects, framing effects, and brand recollection. As an analysis method, questionnaire surveys conducted with university students in Incheon were examined through Two-Way ANOVAs using the SPSS23 package. Results - The analysis from the results are as follows. Using smartphone repurchase as a dependent variable, the main effects and interaction effects on two variables; satisfaction difference with product functions and positive framing variable were statistically significant. Using repurchase as a dependent variable was statistically significant, there was no interaction effect between the two variables; satisfaction difference with product functions and the difference of brands in possession. Using smartphone repurchase as a dependent variable, interaction effects on two variables; satisfaction difference with product functions and the lengths of product possession periods were not statistically significant. The results from the analyses of interaction effects of brand recollection and brands type were statistically significant in possession using repurchase as a dependent variable. The results from the analyses of the main effect of the brands type were statistically significant in possession using repurchase as a dependent variable. Conclusions - The implication of the present study is that it suggests the factors that became important for customers' smartphone purchase following the change in the meaning of smartphones from practical products in the past to hedonic products. Limitations of the present study are first, the study subjects are limited to students and the number of copies in questionnaires is only approximately 130, which is insufficient, so that the present study is not sufficient as a study for entire smartphone users.

• Journal of the Korean Institute of Intelligent Systems
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• v.24 no.3
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• pp.310-315
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• 2014

The domestic maritime environment shows higher frequency of maritime accidents amidst greater traffic volume arising from increasing international seaborne trade and maritime leisure activities. To reduce such maritime accidents, there exist various kinds of safety navigation devices in the ship bridge aimed to mitigate burdens of navigators and support their accurate decision making. Amongst is the AIS considered very important, which is an automatic tracking system to assist understanding of the circumstances in the vicinity by receiving information of other ships and also sending its own; where the information contains errors initially, however, such wrong information is periodically transmitted, accordingly giving rise to hindrance sometimes in decision making by shore operators or ship navigators at sea. This study is to propose the error data and field management algorithm using fuzzy theory toward improving reliability and accuracy in ship related information received from AIS.

• Korean Business Review
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• v.7
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• pp.57-77
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• 1994

우리에게 미국시장은 매우 중요하다. 따라서 최근에 미국시장에서 일어나고 있는 한국과의 통상마찰은 우리가 적극적이고 슬기롭게 대처해 나가야 할 부분이다. 이러한 문제에 대한 대안으로 통상로비 전략의 구축은 중요한 통상마찰의 해소 방안이 될 수 있다. 지금까지 논의한 통상로비에 관한 이론과 외국의 대미(對美)로비 실태파악과 우리의 로비전략을 살펴보았다. 여기에서는 앞에서 언급한 한국의 대(對)미 통상로비전략을 간단하게 요약하여 정리해 봄으로써 연구 결론을 내리고자한다. 즉, 통상로비전략을 네 가지 차원으로 나누어 설명하면 다음과 같다. 첫째 기본전략으로써 미국에 관한 철저연구와 우리주장의 논리적 타당성을 얻기 위해서 문화홍보에 역점을 두어야 하고 대중 동원형(Grass Roots)로비를 효율적으로 전개할 필요성이 있다. 둘째, 정부의 대응전략으로 미국내 한국에 대한 여론조사를 실시하여 한국의 이미지와 그러한 인식이 생성된 배경의 파악이 중요하다. 한국 내에서의 대미(對美)로비를 중시하여 한국에 파견된 미국대사관 직원, 해외방송, 신문, 특파원에 대한 한국 홍보강화와 해외 홍보기금조성을 통하여 정부차원에서 해외홍보를 적극 권장하고, 정부부처간이나 기업 간에 연락 및 협력을 강화한다든지 민간기업의 로비를 간접지원 하는데 노력해야 할 것이다. 셋째, 업계단체의 대응전략으로 미국통상에 관련된 최신정보를 신속히 수집하여 이를 파악하고 관련된 정보를 전달하는데 힘써야 한다. 그리고 통상마찰의 문제가 발생하기 전에 로비전략을 수립해 놓음으로써 시기적전하고 적당한 대처를 해 나갈 수 있다는 것이다. 업계의 전체의견을 미국의 정부, 의회, 동종 관련단체 등에 효과적으로 전달하기 위한 채널개발의 중요성과 해외경제 홍보센타(가칭)의 설치로 대규모 수출기업과 업계단체간의 해외홍보의 효율성을 올릴 수 있다. 넷째, 민간기업의 대응전략으로는 현지국과의 공존공영을 추구하여 현지국의 경제에 기여하겠다는 기업 시민의식과 현지국 사회활동에 적극 참여하여 한국의 대외 이미지 개선을 위한 적극적인 PR활동과 기업의 최고경영자 차원의 로비활동 추진으로 대미(對美)로비체제를 적극적이며 능동적으로 수행할 수 있도록 하여야 한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.8
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• pp.1596-1606
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• 2016

Today the ocean is a treasure trove of the resources that prosperous country and the passage of the trade to lead the world economy. Due to the development of the latest science and technology, human activities are increasingly expanding into the ocean from land. Modern east Asian countries have also recognized the value of the ocean and competitively pursue their own interests at sea. For this reason, the conflict between the East Asian countries is rising. On the other hand, the means of International organizations and maritime security to resolve these issues are very limited. In order to solve this problem, we should reexamine the scope and agenda of the maritime security issues, and re-evaluate the process and results of the various security cooperation which have been implemented. If we solve these problems successfully, the troubled Asian waters will be changed to 'sea of peace and prosperity'.

• Journal of Navigation and Port Research
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• v.26 no.4
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• pp.383-390
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• 2002

The time cost of ship end cargoes is one of the most important data for decision-making of port investment and operational efficiency. Studies in this area were initiated internationally by Goss and Mann in late 70's and also done in Korea 10 years ago using the same methodology as Goss. The main purpose of this paper is to revisit to estimate the time cost using updated data. The estimation was undertaken sampling data on various investment and operating costs by vessel from 205 vessels, comprising 47.5％ of the notional fleet in Korea as well as on cargoes from international trade statistics. Compared with the study of 10 years ago, major finding of this research is that time costs of liquid and dry bulk carriers have increased, in case of the former type, showing almost doubled cost increase. The increase is deemed to be caused by very expensive LNG carriers. Lowered social discount rate in this study compared with 10 years ago, in general, has mused the costs to stay at similar level to the previous study. Sensitivity tests were conducted using various social discount rates.