• The Journal of Korean Institute of Communications and Information Sciences
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• v.32 no.1B
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• pp.22-30
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• 2007

In this paper, to achieve consistency maintenance as well as stable service execution, we build a Fault-Tolerant Object Group framework that provides both of the group management service and the load scheduling service. The group management service supports the object management such as registration and authentication, and provides two schemes for failure recovery using the service priority and the checkpointing. In the load scheduling servile, we improve the effectiveness of service execution through the reasoning process of object loads based on the ANFIS architecture. The effectiveness in the performance of the developed framework is validated through a virtual home-network simulation based on the FTOG framework.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.48 no.6
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• pp.47-55
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• 2011

The performance of data transmission from mobile devices to cloud storages is limited by the amount of data being transferred, communication speed and battery consumption of mobile devices. Especially, when the large-scale data communication takes place using mobile devices, such as smart phones, the performance turbulence and power consumption become an obstacle to establish the reliable communication environment. In this paper, we present an efficient data transmission method using USB Hijacking. In our approach, the synchronization to transfer a large amount of data between mobile devices and user PC is executed by using USB Hijacking. Also, there is no need to concern about data capacity and battery consumption in the data communication. We presented several experimental results to verify the effectiveness and suitability of our approach.

• 한국IT서비스학회:학술대회논문집
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• 2005.05a
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• pp.591-599
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• 2005

현재의 경영환경은 기업경영에 긍정적 또는 부정적인 영향을 미칠 Event가 다양하고 예측이 어려워지고 있는 상황에 직면하고 있다. 반면에 각종 경영상의 규정과 규제는 주주와 시장의 입장에서 기업의 경영의 투명성과 신뢰성을 요구하고 있다. 대표적으로 금융산업은 Basel II, 미국증시에 상장된 기업은 SOA라 불라는 Sarbanes-Oxley법안, 국내기업은 집단소송제, 외감법, 증권거래법 등에 기업의 경영 성과와 재무제표에 대한 경영진의 서명 및 외부감사인의 검토를 규정하고 있다. 경영진은 전략적인 목적 달성에 영향을 미치는 내외부에서 발생하는 상황과 규정/규제에 대한 대응현황을 종합적으로 판단해야만 하게 되었다. 이러한 상황에서 2004년 9윌 Committee of Sponsoring Organization of the Treadway Commission(이하 COSO)에서는 Enterprise Risk Management Framework을 발표하였다. 이는 기존 내부통제(Internal Control) 개념을 확장/보완한 개념으로 전사적 관점에서 기업에 영향을 미치는 Event를 식별하고 통제하는 일련의 과정을 정의 하고 있다. 대부분 기업에서는 법규와 규정중심의 대응을 추진하고 있는 현황이며, 추진 과정시 리스크에 대한 개념이나 관리 수준에 대한 혼란을 격고 있다. 리스크 정의시 일관된 관점을 유지할 수 있는 관리 범주와 관리 목적의 부재를 제기하고 있며, 일회적인 관리가 아닌 정례화된 프로세스로 운영하도록 하는 관리체계 정립을 위한 방법론이나 실행가이드를 필요로 하고 있다. 이에 새로운 관리체계로서 Enterprise Risk Management(이하 ERM) 도입을 위하여 ERM에 대한 명확한 이해와 적용시 주요이슈에 대한 실천적 해결안을 제시하는 것을 본 연구의 목적으로 삼고자 한다

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.306-310
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• 2002

Today, corporations are approach to inside information using public network such as Internet groping economical way to utilize public network to corporation information network without buying equipment. But, special quality of internet, Virtual Private Net (VPN) that it uses net that is observed as technology that can be guaranteed public safety division transmission and data securitybecause of can not secure data transmission. In this paper. add VPN function ONU&OLT of ATM-PON system and propose SCB (Single Copy Broadcasting). When there is VPN function to ATM network, the speed can be fast, and reduce rain track pick quantity during time more. Performance analysis network simulation that use NS-2.

• 한국벤처창업학회:학술대회논문집
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• 2023.11a
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• pp.91-96
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• 2023

글로벌로 핵심기술 경쟁 및 최상의 기술을 적용한 제품 제조를 실현해야 하는 ICT 분야의 수출 제조 중소기업은 내부, 외부적인 환경적 요인뿐 아니라 다양한 위기상황을 겪게 된다. 이러한 위기상황을 극복하고자 기업 자체적인 전략을 다방면으로 모색하고 실행하여 성공한 수출 제조 중소 벤처기업인 '(주)쎄믹스'가 있다. 2000년에 설립한 (주)쎄믹스는 반도체 검사장비 중 하나인 Wafer Prober 제조 전문기업으로, 'Simple Perfection'이라는 슬로건 아래 23년간 'OPUS' 및 'OPERA'를 생산, 판매에 전념하고 있는 글로벌 강소기업이며, 지속적인 핵심기술 연구개발을 통해 품질혁신에 성공하였고 글로벌 반도체 검사장비 시장에서 기술적 신뢰와 브랜드 명성을 인정받고 있는 벤처기업이다. 현재 (주)쎄믹스의 입지를 구축하기까지 수출 제조기업으로서 겪은 환율관리 실패인 키코손실에서 기인한 회사 위기를, 자체적으로 기술혁신, 조직혁신, 핵심인재 육성 등 전략적 기업혁신에 성공하여 회사의 존폐위기였던 상황을 극복하였다. 우선 키코손실을 떨쳐내고 새로이 시작하기 위한 S사와의 합병, 분할 후 조직 내부에 기업가정신을 고취하였고 핵심기술을 발굴하여 세계일류상품 인증, 월드클래스 300 선정 및 완수, 6개국에 7개의 자회사 설립 통한 조직혁신, 과감한 인재등용, 인재육성 위한 사내 컨퍼런스 제도 도입, TRIZ 등을 통한 과감한 교육혁신, 인재를 위한 특별한 복지정책 구현 등을 실천하였다. 본 연구는 '(주)쎄믹스'의 위기극복 사례를 통해 일본의 두 곳 대기업만이 누리고 있던 Wafer Prober 장비 시장에서 독자적인 글로벌 판로개척을 통한 자생적 성장시스템 구축과 창의적이고 자기 주도적인 혁신체제를 구축하는 계기를 제공하여 다양한 위기상황에 직면하였거나 위기를 미연에 방지하여야 할 중소기업인과 임직원들에게 성공 사례를 제공하고자 하였다.

• Journal of the Korea Society for Simulation
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• v.30 no.2
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• pp.1-9
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• 2021

Many factors such as wind direction, wind strength, temperature, and obstacles affect a munition's trajectory. Since these factors eventually determines the probability of hit and the hitting point of a target, these factors should be considered to obtain reliable weapon effectiveness data. In this study, we propose the extension of the MSDL(Military Scenario Definition Language) to reflect these factors to improve the reliability of weapon effectiveness data. Based on the existing MSDL, which has been used to set the initial condition of a military simulation scenarios, the newly identified subelements are added in ScenarioID, Environment, Organizations, and Installations as a scenario schema. Also, DamageAssessment and DesignOfExperiments element are added to make weapon effectiveness data easily. The extended MSDL enables to automatically generate the simulation scenarios that reflect various factors which affect the probability of hit or kill. This extended MSDL is applied to an integrated simulation software of weapon systems, named AddSIM version 4.0 for generation of weapon effectiveness data.

• Clean Technology
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• v.25 no.1
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• pp.63-73
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• 2019

Numerical analysis was done to evaluate the chemical reaction and the reduction rate inside of selective non-catalytic reduction to denitrification in combustion process. The $NO_X$ reduction in selective non-catalytic reduction is converted to not only nitrogen but also nitrous oxide. Simultaneous $NO_X$ reduction and nitrous oxide generation suppressing is required in selective non-catalytic reduction because nitrous oxide influences the global warming as a greenhouse gas. The current study was performed compare the computational analysis in the same temperature and amount of NaOH, and in comparison with the previous research experiments and confirmed the reliability of the computational fluid dynamics. Additionally, controlling the addition amount of NaOH to predict the $NO_X$ reduction efficiency and nitrous oxide production. Numerical analysis was done to check the mass fraction of each material in the measurement point at the end of selective non-catalytic reduction. Experimental Value and simulation value by numerical analysis showed an error of up to 18.9% was confirmed that a generally well predicted. and it was confirmed that the widened temperature range of more than 70% $NO_X$ removal rate is increased when the addition amount of NaOH. So, large and frequent changes of the reaction temperature waste incineration facilities are expected to be effective.

• The KIPS Transactions:PartC
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• v.11C no.1
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• pp.31-38
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• 2004

In mobile agent environments, migration of an agent occurs continuously due to the mobility of agents. So cascaded delegation can occur among places for delegating the privilege to execute the agent. Because the existing delegation scheme considers only the delegation between two places that participate in migration of an agent, it does not support secure cascaded delegation. In this paper, we propose a cascaded delegation scheme that provides agents with secure cascaded delegation in mobile agent environments. Depending on the trust-relationship among places, the proposed scheme achieves the goal by nesting each delegation token or by nesting only initial token signed by creator of the agent within the signed part of the next immediate delegation token. And we prove that the proposed scheme is secure against the attack of replaying a message and the attack of substituting a delegation token.

• Journal of Korean Home Economics Education Association
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• v.24 no.2
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• pp.117-134
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• 2012

The purpose of this study was to identify the stage of concern, the level of use, and the innovation configuration of Home Economics teachers regarding creativity and personality education in Home Economics(HE) classes. The survey questionnaires were sent through mails and e-mails to middle-school HE teachers in the whole country selected by systematic sampling and convenience sampling. Questionnaires of the stages of concern and the levels of use developed by Hall(1987) were used in this study. 187 data were used for the final analysis by using SPSS/window(12.0) program. The results of the study were as following: First, for the stage of concerns of HE teachers on creativity and personality education, the information stage of concerns(85.51) was the one with the highest response rate and the next high in the following order: the management stage of concerns(81.88), the awareness stage of concerns(82.15), the refocusing stage of concerns(68.80), the collaboration stage of concerns(61.97), and the consequence stage of concerns(59.76). Second, the levels of use of HE teachers on creativity and personality education was highest with the mechanical levels(level 3; 21.4%) and the next high in the following order: the orientation levels of use(level 1; 20.9%), the refinement levels(level 5; 17.1%), the non-use levels(level 0; 15.0%), the preparation levels(level 2; 10.2%), the integration levels(level 6; 5.9%), the renewal levels(level 7; 4.8%), the routine levels(level 4; 4.8%). Third, for the innovation configuration of HE teachers on creativity and personality education, more than half of the HE teachers(56.1%) mainly focused on personality education in their HE classes; 31.0% of the HE teachers performed both creativity and personality education; a small number of teachers(6.4%) focused on creativity education; the same number of teachers(6.4%) responded that they do not focus on neither of the two. Examining the level and type of performance HE teachers applied, the average score on the performance of creativity and personality education was 3.76 out of 5.00 and the mean of creativity component was 3.59 and of personality component was 3.94, higher than standard. For the creativity education, openness/sensitivity(3.97) education was performed most and the next most in the following order: problem-solving skill(3.79), curiosity/interest(3.73), critical thinking(3.63), problem-finding skill(3.61), originality(3.57), analogy(3.47), fluency/adaptability(3.46), precision(3.46), imagination(3.37), and focus/sympathy(3.37). For the personality education, the following components were performed in order from most to least: power of execution(4.07), cooperation/consideration/just(4.06), self-management skill(4.04), civic consciousness(4.04), career development ability(4.03), environment adaptability(3.95), responsibility/ownership(3.94), decision making(3.89), trust/honesty/promise(3.88), autonomy(3.86), and global competency(3.55). Regarding what makes performing creativity and personality education difficult, most HE teachers(64.71%) chose the lack of instructional materials and 40.11% of participants chose the lack of seminar and workshop opportunity. 38.5% chose the difficulty of developing an evaluation criteria or an evaluation tool while 25.67% responded that they do not know any means of performing creativity and personality education. Regarding the better way to support for creativity and personality education, the HE teachers chose in order from most to least: 'expansion of hands-on activities for students related to education on creativity and personality'(4.34), 'development of HE classroom culture putting emphasis on creativity and personality'(4.29), 'a proper curriculum on creativity and personality education that goes along with students' developmental stages'(4.27), 'securing enough human resource and number of professors who will conduct creativity and personality education'(4.21), 'establishment of the concept and value of the education on creativity and personality'(4.09), and 'educational promotion on creativity and personality education supported by local communities and companies'(3.94).

• International Commerce and Information Review
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• v.14 no.2
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• pp.121-145
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• 2012

This research was performed to review the marketing PR(MPR) strategy to build the brand image of Chungnam tourism for the inducement of foreign tourist. Because each local governments are looking for the industries of new growth power from the tourism industry recently, we applied the BI strategy of Chungnam tourism with expended BLC model and GRID model after we analyzed the variety of PR situation and tasks to build the Chungnam tourism's brand image in the competitive domestic and foreign tourism industry. In the result of the study, we set up the limited brand image of Chungnam tourism newly; also we derived a specific action plan. First of all, they need every possible means for Brand Awareness PR, Issue PR, Brand Loyalty PR, etc. depend on brand life cycle with the Chungnam's tourism service products. Secondly, for the each tourism service products, it is requiring to repositioning from present position (B, C, D area) to A area by MPR strategy. Finally, many additional MPR strategies should put in to support for building the brand image for the 'Tourism Chungnam'. The strategic SNS public relations are required with considerations of items that are necessarily need to have the reasons and circumstances for the new foreign tourists, so they can have experiences for the Chungnam Tourism. For the existing foreign tourists, we should keep to build relationship in order to give them trusts and to feel sympathy.