• 한국전산구조공학회:학술대회논문집
• /
• 한국전산구조공학회 2000년도 봄 학술발표회논문집
• /
• pp.431-438
• /
• 2000

The cost function consists of the weighting functions concerning the structural responses to be controlled and the controller capability. Therefore, the control efficiency depends on the characteristics of the weighting functions. The objective of this paper is the comparative study of the time domain control strategies of LQR and LQG and the frequency domain strategy of H₂ by setting the equivalent weighting functions to the all control strategies. As a result of analysis, LQR strategy is found to be more efficient than other strategies in terms of the response reduction. but the control force is found to be a little highter. As LQG can compensate the limitation of LQR that all state variables should be identified, LQG is more acceptable algorithm than LQR. Furthermore LQG shows a good performance both in the response reduction and the control force. Finally H₂ algorithm is employed to illustrate the importance of weighting filters considering the frequency characteristics of the response and the controller. It Is shown that the H₂ algorithm is found to be the most effective one for the response control with a little control force having a low frequency band.

• 한국콘텐츠학회논문지
• /
• 제14권5호
• /
• pp.390-402
• /
• 2014

본 연구는 Sturges의 위기단계 모델을 바탕으로 K리그 승부조작 사건에 대한 기사보도 빈도, 정보원 그리고 프로축구연맹의 위기대응 커뮤니케이션 전략을 분석하였다. 언론에 보도된 118개의 K리그 승부조작 관련 기사를 대상으로 빈도분석, 내용분석을 실시하였다. 위기단계별 위기대응 커뮤니케이션 전략의 분석단위는 문장단위로 분석하였다. 분석결과 위기단계별 언론보도의 빈도는 위기발생단계에서 가장 높게 나타났다. 보도내용에 대한 정보원은 프로축구연맹, 대한축구협회, 구단, 감독, 선수, 문화체육관광부, 검찰, 전직선수 및 감독, 축구전문가 등 다양한 정보원이 활용되었으며, 이들 중 프로축구연맹이 모든 위기단계에 걸쳐 가장 높은 인용빈도를 보였다. 프로축구연맹의 위기대응 커뮤니케이션 전략은 전체적으로 재발방지를 위한 조치를 취하는 개선행위 전략을 가장 많이 구사한 것으로 나타났다. 구체적으로 위기발생단계에서는 팬들에게 사과하고 재발방지를 약속하는 개선행위 전략을 구사하였으나 변명, 책임전가 등, 대응전략의 일관성을 해치는 전략이 동시에 사용되기도 하였다. 반면에 만성적위기단계와 위기종결단계에서는 재발방지대책과 사건에 연루된 선수들에 대한 징계조치를 취하는 개선행위전략이 일관성 있게 나타났다. 한편, 구단과 선수의 위기대응 커뮤니케이션 전략은 프로축구연맹의 위기대응 커뮤니케이션 전략과 일관성이 없는 것으로 나타났다. 이러한 연구결과에 대한 시사점과 향후연구 방향을 제시하였다.

• 한국항공운항학회지
• /
• 제26권1호
• /
• pp.10-24
• /
• 2018

This paper tried to analyze the response of air traffic controller(ATC) against abnormal situations using survey based on cognitive strategies suggested by Malakis et al.(2010). The survey designed to empirically analyze the effect of the cognitive strategy factors on organizational effectiveness. The main purpose of this research was as follows: First, it was analyzed both the individual-scale and team-scale factors which constructed the cognitive strategy against abnormal situations. Secondly, how seriously impact the ATC's cognitive strategies on their organizational effectiveness. The organizational effectiveness was divided into such two latent variables as job absorption and job satisfaction. According to the a analysis, it was proven that premeditated act of ATC had a positive significant effect on team-scale cognitive strategies such as teamwork, communication and error management. Moreover, it was found out the team-scale cognitive strategies had also a positive significant effect on job absorption. On the other hands, individual-scale cognitive strategies had no or negative effect on job absorption. Job absorption was proven to have a significant effect on job satisfaction of ATC.

• 무역학회지
• /
• 제46권1호
• /
• pp.59-81
• /
• 2021

This paper aims to analyze Korea's trade and investment performance in Spain and the business environment of Spain, and to find efficient strategies for entering into the Spanish market. This study is organized into five chapters. To begin with, it explains an overview of the Spanish economy and the current status of its major industries. Then, it analyzes Korea's trade and investment performance in Spain, the structure of comparative advantage and the trade trends of major import and export items, since 2011 when the Korea-EU FTA went into effect. Lastly, based on the results of this analysis, Korea's strategies for entering into the Spanish market are derived. The strategies derived from the analysis are as follows: (1) entering startups in the Spanish market through CVC cooperation and participation in large tech forums, (2) linking the Spanish interest in K-Culture to consumer goods exports, (3) promoting cooperation in the IT industry in response to the Spanish government's 'Connected Industry 4.0', (4) building a new Korean-Spanish value chain in response to the mobility revolution, (5) advancing jointly into a third country by combining the strengths of both Korea and Spain, (6) cooperating with the Spanish government to establish a sustainable energy policy, (7) promoting jointly with the Spanish government through smart city strategies and project exchanges, and (8) building a European logistics hub in Spain in preparation for post-Brexit.

• Journal of Public Diplomacy
• /
• 제3권2호
• /
• pp.1-34
• /
• 2023

본 연구는 예고 없이 발생하는 초국가적 위기에 정부가 어떻게 전략적으로 대응하고 커뮤니케이션 할 것인지 공공외교 측면에서 주목하고, 이를 위해 PR 분야에서 발달한 위기커뮤니케이션 연구를 토대로 공공외교 위기커뮤니케이션모델을 개발하고자 하였다. 연구방법으로는 PR 에서 중요한 분야인 위기커뮤니케이션의 대표이론들을 살펴보고 이를 토대로 공공외교 위기커뮤니케이션 모델 개발, 사례연구를 통하여 공공외교 위기 발생시 어떻게 대응전략을 수립하고 이를 커뮤니케이션 해야 할 지 제언하였다. 그 결과 공공외교 학문 및 실무에 활용할 수 있는 공공외교 위기커뮤니케이션 모델(Public Diplomacy Crisis Communication Model, PDCCM)을 개발하였다. 이 모델은 공공외교 위기커뮤니케이션의 중요한 원칙으로 신속성, 개방성, 일관성, 진정성을 제시하고, 실행 내용으로 상시 소셜리스닝과 소셜모니터링을 통한 위기의 탐지, 위기에 전략적으로 대응하기 위해서 센스메이킹을 활용한 상황분석 및 위기대응목표설정, 네트워킹과 메시징을 통하여 상황에 맞는 위기대응전략과 이미지회복전략을 활용하는 것을 골자로 하고 있다.

• Journal of Preventive Medicine and Public Health
• /
• 제43권2호
• /
• pp.109-116
• /
• 2010

Objectives: The pandemic of novel influenza A (H1N1) virus has required decision-makers to act in the face of the substantial uncertainties. In this study, we evaluated the potential impact of the pandemic response strategies in the Republic of Korea using a mathematical model. Methods: We developed a deterministic model of a pandemic (H1N1) 2009 in a structured population using the demographic data from the Korean population and the epidemiological feature of the pandemic (H1N1) 2009. To estimate the parameter values for the deterministic model, we used the available data from the previous studies on pandemic influenza. The pandemic response strategies of the Republic of Korea for novel influenza A (H1N1) virus such as school closure, mass vaccination (70% of population in 30 days), and a policy for anti-viral drug (treatment or prophylaxis) were applied to the deterministic model. Results: The effect of two-week school closure on the attack rate was low regardless of the timing of the intervention. The earlier vaccination showed the effect of greater delays in reaching the peak of outbreaks. When it was no vaccination, vaccination at initiation of outbreak, vaccination 90 days after the initiation of outbreak and vaccination at the epidemic peak point, the total number of clinical cases for 400 days were 20.8 million, 4.4 million, 4.7 million and 12.6 million, respectively. The pandemic response strategies of the Republic of Korea delayed the peak of outbreaks (about 40 days) and decreased the number of cumulative clinical cases (8 million). Conclusions: Rapid vaccination was the most important factor to control the spread of pandemic influenza, and the response strategies of the Republic of Korea were shown to delay the spread of pandemic influenza in this deterministic model.

• 대한간호학회지
• /
• 제33권3호
• /
• pp.440-450
• /
• 2003

Purpose: This study was conducted to examine the effects of solution-focused group counseling on the general stress, stress response and coping in the delinquent juveniles. Method: The subjects consisted of a convenience samlple of 60 delinquent juveniles who had been placed under probation in Kwang-ju, and recruited from Oct., 2000 to Dec., 2000. Solution-focused group counseling was conducted for the experimental group once a week for 120 to 180 minutes for 6 week. The control group received no group session. For both groups the level of general stress, stress response and coping were measured before and after the experiment. Result: General stress significantly decreased in the experimental group and increased in the control group, but showed no significant difference between the two groups. Stress response decreased significantly in the experimental group and increased in the control group, but showed no significant difference between the two groups. The problem-focused coping significantly increased in the experimental group and decreased in the control group, and showed a significant difference between the two groups. The emotion-focused coping significantly decreased in the experimental group and increased in the control group, and showed no significant difference between the two groups. Conclusion: This study showed that solution-focused group-counselling has a positive effect on variables like the general stress, stress response, emotion-focused coping and problem-focused coping. Further study needs to be conducted to verify results.

• 디지털산업정보학회논문지
• /
• 제16권3호
• /
• pp.37-47
• /
• 2020

The In the 4^th industrial revolution, cyber space will evolve into hyper-connectivity, super-convergence, and super-intelligence due to the development of advanced information and communication technologies, which will connect the nation's core infrastructure into a single network. As applying the 4^th industrial revolution technology to the cyber attack technique, it is evolving in an intelligent and sophisticate method. In order to response intelligent cyber attacks, it is difficult to guarantee self-defense in cyberspace by policy-oriented, preplanned-centric and hierarchical cyber response strategies. Therefore, this research aims to propose a situation-flexible & action-oriented cyber response mechanism that can respond flexibly by selecting the most optimal smart security solution according to changes in the cyber attack steps. The proposed cyber response mechanism operates the smart security solutions according to the action-oriented detailed strategies. In addition, artificial intelligence-based decision-making systems are used to select the smart security technology with the best responsiveness.

• Smart Structures and Systems
• /
• 제12권2호
• /
• pp.157-179
• /
• 2013

We present an approach, based on the state dependent Riccati equation, for designing non-collocated seismic response control strategies for buildings accounting for physical constraints, with particular attention to force saturation. We consider both cases of active control using general actuators and semi-active control using magnetorheological dampers. The formulation includes multi control devices, acceleration feedback and time delay compensation. In the active case, the proposed approach is a generalization of the classic linear quadratic regulator, while, in the semi-active case, it represents a novel generalization of the well-established modified clipped optimal approach. As discussed in the paper, the main advantage of the proposed approach with respect to existing strategies is that it allows to naturally handle a broad class of non-linearities as well as different types of control constraints, not limited to force saturation but also including, for instance, displacement limitations. Numerical results on a typical building benchmark problem demonstrate that these additional features are achieved with essentially the same control effectiveness of existing saturation control strategies.

• International Journal of Human Ecology
• /
• 제12권1호
• /
• pp.25-35
• /
• 2011

The present research investigated gender-specific response strategies for dealing with peer victimization of preadolescents. Furthermore, coping strategies were explored as moderators of the link between peer victimization and internalizing problems. The participants were 466 preadolescents. Peer victimization, coping strategies, and internalizing problems were assessed through self-report questionnaires. Results showed that girls had significantly higher scores on help seeking, avoidant strategies, and ruminative strategies than boys. In addition, use of avoidant coping and seeking help minimized the effects of peer victimization on internalizing problems in girls. Ruminative coping exacerbated the influence of peer victimization on internalizing problems for both boys and girls.