• Proceedings of the Korea Information Processing Society Conference
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• 2009.11a
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• pp.427-428
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• 2009

무선 네트워크 환경에서 합법적인 AP(Access Point)의 MAC 주소, SSID(Service Set Identifier), 채널등의 정보를 이용하여 복제된 AP(Cloned Access Point)를 만들 수 있다. 복제된 AP는 합법적인 AP와 연결되어 있는 무선 스테이션들의 연결 설정을 끊고 자신과 연결 설정을 하게 한다. 무선 스테이션들이 복제된 AP와 통신을 하게 되면서 많은 공격으로부터 노출되게 된다. 본 연구에서는 복제된 AP가 설치되었을 때 무선 스테이션들이 합법적이 AP의 비콘 프레임과 복제된 AP 비콘 프레임의 시퀀스 번호를 이용하여 복제된 AP을 판별하였다. 시뮬레이터 NS-2를 이용하여 실험한 결과 본 논문에서 제안하는 메커니즘을 통해 무선 스테이션들이 복제된 AP의 등장을 판별할 수 있게 되어 보다 안전한 무선랜 환경을 구축할 수 있게 되었다.

• International Journal of Advanced Culture Technology
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• v.11 no.2
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• pp.186-190
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• 2023

There are unimaginable possibilities ahead of us. As a result, it is difficult to predict the future, but the prediction itself is not meaningless. This is because it can have the flexibility to cope with contingencies by predicting various possibilities. This study was conducted to explore extreme events (X-event) in the Korean population sector. To this end, in-depth interviews were conducted with experts from the Korea Army Research Center for Future & Innovation and the Army College, and based on this, significant research results were derived that population problems such as population decline and aging can affect various fields such as economy. With this study, we hope that discussions on extreme events (X-event) that can occur in our society will be further activated.

• Asia Marketing Journal
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• v.25 no.4
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• pp.219-230
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• 2024

Previous literature supports the importance of corporate social responsibility (CSR) by demonstrating its effects on various aspects of firm performance. However, the extent to which CSR contributes to social well-being, its original objective, has rarely been examined. The current research investigates the impact of customers' perceived CSR of service firms on customer happiness. Two studies confirm our proposition that perceived CSR increases customer happiness by enhancing perceptions of warmth and competence associated with the service company. Furthermore, we examine how the type of service moderates this effect. Specifically, we find that the indirect effects of CSR on customer happiness through perceptions of warmth and competence are stronger for credence services than for experience services. This research makes theoretical contributions to the literature on CSR, happiness, and service, and offers practical implications for marketing tactics, including fostering long-term customer relationships and monitoring the effectiveness of CSR activities and corporate budget allocations.

• International Journal of Advanced Culture Technology
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• v.12 no.2
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• pp.286-298
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• 2024

The rapid advancement of drone technology has significantly altered the landscape of modern warfare, presenting both opportunities and challenges for military forces worldwide. As drones become increasingly sophisticated, capable of performing complex missions such as reconnaissance, surveillance, and precision strikes, the development of effective air defense systems has become a critical priority. This study examines the current state of drone and air defense technologies, analyzing their impact on military strategies, tactics, and the future battlefield environment. By exploring the patterns of technological evolution, the limitations of existing air defense systems, and the potential consequences of drone proliferation, this research highlights the need for adaptive, innovative approaches to counter emerging threats. The findings underscore the importance of investing in advanced detection and interception capabilities, developing comprehensive counter-drone doctrines, and fostering international cooperation to address the ethical and legal challenges posed by the military use of drones. As the competition between drone and air defense technologies continues to intensify, policymakers and military leaders must proactively engage in shaping the future of warfare to ensure national security and stability in an increasingly complex world.

• The KIPS Transactions:PartD
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• v.14D no.1 s.111
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• pp.121-130
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• 2007

in a software development, the design or architecture prior to implementing the software is essential for the success. This paper presents a case that we successfully designed a software architecture of radiation monitoring system (RMS) for HANARO research reactor currently operating in KAERI by applying the quality attribute-driven design method which is modified from the attribute-driven design (ADD) introduced by Bass[1]. The quality attribute-driven design method consists of following procedures: eliciting functionality and quality requirements of system as architecture drivers, selecting tactics to satisfy the drivers, determining architectures based on the tactics, and implementing and validating the architectures. The availability, maintainability, and interchangeability were elicited as duality requirements, hot-standby dual servers and weak-coupled modulization were selected as tactics, and client-server structure and object-oriented data processing structure were determined at architectures for the RMS. The architecture was implemented using Adroit which is a commercial off-the-shelf software tool and was validated based on performing the function-oriented testing. We found that the design method in this paper is an efficient method for a project which has constraints such as low budget and short period of development time. The architecture will be reused for the development of other RMS in KAERI. Further works are necessary to quantitatively evaluate the architecture.

• Journal of Environmental Policy
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• v.7 no.1
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• pp.53-79
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• 2008

In this study, we conducted a comprehensive study to analyze the environmental behavior of airborne Ni for the proper establishment of basic control tactics based on the metal concentration data sets collected from the major cities in Korea for the 14 year period(1991 through 2004). The mean concentration of Ni determined from all cities during the entire study period varied from as little as 7.38+6.70 ng $m^3$(Won Ju) to the maximum of 41.4+26.2 ng $m^3$ in a highly industrialized city of An San. However, the mean concentrations of Ni from most cities generally fell in the range of 10 to 20 ng $m^3$. When the Ni concentration data in all cities are compared between the former half(1991 to 1997) and the latter half period(1998 to 2004), a reduction in its concentration levels was seen dominantly between the two study period. Comparison of seasonal patterns generally indicated the enhanced concentrations of Ni during spring/winter relative to summer/fall term. The overall results of this study suggest that the source processes of Ni are diverse enough to exhibit moderately diverse patterns between different cities. Considering that relative enhancement in Ni levels is observed from most of industrial and/or large scale cities, a development of adequate control tactics for Ni is highly desirable.

• Korean journal of communication and information
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• v.70
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• pp.35-65
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• 2015

This paper is consisted of the thesis that the decontextualized limitation of media cultural studeis in Korea should be overcome by walking into and linking with today's urban crisis and everyday life. It proposes us to become the flaneurs who do not hesitate to go to, think of, and experience actively the city in crisis under the capital/state domination. It's conclusion would be that we must practice participation observation at the fields and thus recover the critical element of cultural studies writing, by entering into the city and seeing at the features of crisis routinely expressed and symptomatically appear in there. For and before this, the author will first of all pay attention to John Fiske in later period, who was merely perceived and falsely regarded as an active audience theorist. He will also review de Certeau from whom Fiske has borrowed the concept of tactics, and Berman who has further practiced the very spatial tactic. The paper is prepared so as to expand the ideas and thoughts of them who have gone beyond the boundary of text, audience and onto the context of urban space. It's goal is much more than rescuing, recovering Fiske's alternative trajectory. It tries to reconstruct the tradition of urban media cultural studies critically connected with the dangerous, life-threatening capitalist condition. Furthermore, by filling up the theoretical vacuum left behind disconnected and cut away from Fiske, it attempts to find a vision, prospect of cultural studies that will actively engage themselves dialectally with dangerous yet hopeful life of the city and its popular masses.

• Journal of the Society of Naval Architects of Korea
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• v.47 no.4
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• pp.628-645
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• 2010

To perform the engagement level simulation between the underwater vehicle model and the surface model those are constituted with various systems/ sub-systems, we implemented four different federates as a federation according to the IEEE 1516 HLA (High Level Architecture) protocol that is the international standard in the distributed simulation. Those are CFCS (Command and Fire Control System) federate, motion federate, external entities (torpedos, countermeasure and surfaceship) federate, and visualization federate that interacts with OSG (Open Scene Graph)-based visualization rendering module. In this paper, we present the detailed method about the model constitution for discrete event simulation in the distributed environment. For the sake of this purpose, we introduce the DEVS (Discrete Event System Specification)-HLA-based modeling method of the CFCS federate that reflects not only the interations between models, but also commands from user and tactics manager that is separated from the model. The CFCS federate makes decisions in various missions such as the normal diving, the barrier misision, the target motion analysis, the torpedo launch, and the torpedo evasion. In the perspective of DEVS modeling, the CFCS federate is the coupled model that has the tactical data process model, command model and fire control model as an atomic model. The message passing and time synchronization with other three federates are settled by the $m\ddot{a}k$ RTI (Runtime Infrastructure) that supports IEEE 1516. In this paper, we provides the detailed modeling method of the complicated model that has hierarchical relationship such as the CFCS system in the submarine and that satisfies both of DEVS modeling method for the discrete event simulation and HLA modeling method for the distributed simulation.

• Journal of the Korean association of regional geographers
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• v.23 no.1
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• pp.23-46
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• 2017

This article examines the sexualization of place under conditions of the compressed modernization and reflexive cosmopolitanism. In particular, I adopt Michel de Certeau's spatial didactic model of strategy and tactic to investigate the dynamics at play in the gay labelling of a Coffee Bean & Tea Leaf (Coffee Bean) in South Korea, and explore the 'gaying' that takes place within preconceived heteronormative space. Using interview data, I additionally explore the negotiation tactics and coping mechanisms at work when gays compete with heterosexuals for non-gay place. The results illustrate how gays gay in heteronormative space and how heteronormative space harmoniously embodies gay men. The findings suggest that spatial location and tactic play important roles in stimulating compromise of sexual territory. Gay Bean benefits from being nestled between locations with histories of tolerance, while it also prospers from reflexive cosmopolitan ideals of diversity and acceptance of others. Gay identity and gaying is interpreted as foreign in Korea, which buttresses gay performativity in spaces welcoming of foreigners and so-called "deviance." However, how gaying functions within place relies not only on spatial histories of tolerance outside, but also on the tactics of identity negotiation within. The findings suggest that spatial and tactical conditions induce gay individuals to police other gay-identified individuals when gays gay in so-called heteronormative places.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.3 no.1
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• pp.73-83
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• 1992

The purpose of this study was to undrstand the emotional and behavioral sequela in the abused child caused by phygical abuse. To achieve the purpose. the emotional and behavioral differences between not or less abused children group and severely abused children group were compared in this study. The subjects in this study were 61 male children who were selected among children under custody at 4 child-welfare institutions in Seoul. A violence scale in CTS(Conflict Tactics Scale) developed by Straus(1979) was modified and used as a research tool to measure the children's physical abuse. The Korean text of Child Behavior Checklist(CBCL) was also used to measure the emotional and behavioral problems of abused children. The results of this study were as follows : 1) The total scores of behavioral problems in physically abused children were significantly higher than those in control group. 2) The comparison of behavioral problems has shown significant differences between two groups in social withrawal. somatic symptom, emotional disturbance, obsessive-depressive behavior, hyperactivity and psychotic-sexual factors. However. there were no differences in aggressive and delinquent factors. The above results presents us the profile of children's emotional and behavioral problems caused by physical abuse, and can be used as a framework for the treatment protection and preservation of abused children in the course of social work practice.