• 디지털융복합연구
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• 제14권12호
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• pp.85-93
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• 2016

본 연구에서는 소비자의 능동성이 확대되어가고 있는 광고 및 마케팅 환경에서 페이스북 이용 시 소비자가 광고를 확산시키는 현상에 관심을 가지고 연구를 진행하였다. 특히 수용자의 대표적인 능동적 미디어 이용 개념이자 상호작용과 같은 대인적 동기가 주용 이용동기인 페이스북 이용동기가 페이스북 광고 확산행동에 미치는 영향을 파악하고자 하였다. 이를 위하여 페아스북 이용동기 항목 추출을 위한 사전조사를 거쳐 대학생 243명을 대상으로 설문조사를 실시하였다. 페이스북 광고 확산행동 경험자와 비경험자의 페이스북 이용동기 차이를 살펴본 결과, 페이스북 광고 확산행동 경험자가 비경험자에 비하여 페이스북 이용동기가 전반적으로 크게 나타났으며, 발견된 페이스북 광고 확산행동 관련 수용자 특성들이 페이스북 광고 확산행동을 실제로 예측하는 변인인지 검증하기 위하여 로지스틱 회귀분석을 실시한 결과, '자기표현' 동기가 측정된 페이스북 광고 확산행동 모두에서 유의하게 나타났다.

• 동아시아경상학회지
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• 제4권2호
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• pp.12-27
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• 2016

This study aims to investigate the effects of foreign students' entrepreneurship on start-up recognition and intention. Due to the expanded policy of attracting foreign students with current Korean wave, it has rapidly increased the number of foreign students in Korea. The number of foreign students in Korea has increased from 50,000 up to 100,000 in 2012. Approximately half of number was resided in Seoul capital, surrounding satellite cities and followed by Kyeongsang, Chungcheong and Jeolla province regions. In this study, we examined the correlation of entrepreneurship with start-up recognition and intention of foreign students living in Daejeon city. The research model was constructed with entrepreneurship and start-up intention as independent and dependent variable, respectively, and start-up recognition as a moderating variable. Furthermore, the entrepreneurship of foreign students as independent variable contains innovativeness, pro-activeness, risk-taking and social responsibility. In the survey, we collected 119 responding foreign students belonging to KAIST, Chungnam National University and Hanbat National University and analyzed the correlations of these variables with 116 significant answers. To validate the hypotheses, linear regression analysis tool in SPSS program was used. As a result of the survey, entrepreneurship components such as innovativeness, pro-activeness, risk-taking and social responsibility affected start-up intention positively. In addition, start-up recognition as a moderating variable affected positively between entrepreneurship and start-up intention. However, it has the limitation to generalize the overall correlation of entrepreneurship with start-up recognition and intention for foreign students living in Korea because the survey was only performed in restricted Daejeon city area. Nonetheless, this study can be useful for understanding the foreign students's trait for entrepreneurship and planning the adequate entrepreneurship education.

• 한국정밀공학회지
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• 제33권2호
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• pp.89-94
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• 2016

Equipments to influence by external force have to take effect mechanical oscillation. These equipments regardless of the movement on the external force such as roll, pitch and heave etc, worked to keep the height of tote are required for activeness and needed a device as equipment's fluctuation for rapidly compensation. Because the actual development of these devices is difficult to cost-effectively, we were developed to compensation simulator scaled down 1/50. In this paper, we were studying kinematic characteristics, designed the simulator to grasp the point and manufactured. This paper was analyzed for confirming the superiority of compensation simulator and set up 50 ton crane in practice.

• 한국정보시스템학회지:정보시스템연구
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• 제19권4호
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• pp.65-85
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• 2010

The importance of communities of practice(CoP) as an organizational informal unit for fostering knowledge transfer and sharing gains a lot of attention from KM researchers and practitioners. Since most of CoPs are formulated online these days, the credibility or trustworthiness of knowledge contents circulated within a certain CoP should be considered thoroughly for them to be fully utilized safely. Here comes the need for an appropriate trust measuring methodology to determine the true value of knowledge given by unknown people through an online channel. In this paper, an improved trust measuring method is proposed using new trust variables such as level of degrees derived from the relationships among community users. In addition, activeness, relevance, and usefulness of the knowledge contents themselves, which are calculated automatically using a text categorization technique, are also used for trust measurement. The proposed framework incorporates fuzzy set and calculation concepts to help build trust matrices and models, which are used to measure the level of trust involved in specific knowledge artifacts concerned.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2000년도 추계종합학술대회
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• pp.333-336
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• 2000

IT 산업의 급격한 발달에 따라 기업의 업무 환경도 빠르게 변화하고 있다. 그에 따라 활동성이 업무 처리의 중요한 요소로 부각되고, 이동 컴퓨팅 환경의 대중화를 앞당기고 있다. 기업 업무의 자동화를 담당하는 워크플로우는 이러한 변화에 민감하게 적응해야 한다. 따라서 본 논문에서는 이동 호스트를 포함한 모든 클라이언트가 업무에 참여하고 처리할 수 있도록 클라이언트의 성능에 따라 능동적으로 반응하는 워크플로우 시스템을 제안한다.

• 한국컴퓨터정보학회논문지
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• 제21권10호
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• pp.99-105
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• 2016

The active rule system is a key element of the rule-based mobile agent middleware system for activeness and autonomy of the sensor network. The rule manager, which is the main components of active rule based mobile agent framework and active rule system, performs the control and management of the rule-related processes. In this paper, we design and implement the roles and functions of the rule manager in detail. The proposed rule manager plays an important role in the sensor network environment. The sensor data server loads the active rule on the mobile agent by the rule manager according to the situations, and the mobile agent migrates to the destination node and performs the designated action. This active rule-based mobile agent middleware system presents the usefulness for the various sensor network applications. Through the rule execution experiment using the rule-based mobile agent, we show the adaptability and applicability of rule-based mobile agent middleware system to the dynamic environmental changes in sensor networks.

• 한국정보통신학회논문지
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• 제6권2호
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• pp.356-363
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• 2002

실시간 능통 데이터베이스 시스템은 외부의 환경의 변화에 반응하여 트랜잭션들을 주어진 시간 내에 처리할 수 있어야 한다. 본 논문에서는 Thomas 쓰기 규칙을 적용하여 보다 향상된 실시간 능동 동시성 제어 기법을 제안한다. 제안하는 동시성 제어 기법은 데이터 충돌을 해결하기 위해서 우선순위와 능동 규칙을 고려하여 불필요하게 철회되는 트랜잭션의 수를 감소시킬 수 있다. 본 논문에서는 모의실험을 통해서 제안하는 통시성 제어기법에 의해서 보다 많은 트랜잭션이 종료시한을 만족함을 보인다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.62.4-62
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• 2001

In this paper, we propose a delay-dependent guaranteed cost controller design method for uncertain linear systems with time delay. The uncertainty is norm bounded and time-varying. A quadratic cost function is considered as the performance measure for the given system. Based on the Lyapunov method, sufficient condition, which guarantees that the closed-loop system is asymptotically stable and the upper bound value of the closed-loop cost function is not more than a specied one, is derived in terms of Linear Matrix Inequalities(LMIs) that can be solved sufficiently. A convex optimization problem can be formulated to design a guaranteed cost controller, which minimizes the upper bound value of the cost function. Numerical examples show the activeness of the proposed method.

• International Journal of Contents
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• 제7권3호
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• pp.38-47
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• 2011

The present research has created and evaluated contents capable of work appreciation visitors changing their viewpoints on their will by introducing mobile exhibition exposition devices (iPad) for large exhibition museum. Various exposition contents of usually invisible parts or those provided in accordance with user positions drew visitors' attentions and improved museum experience satisfaction. Utilization of digitalized exhibition information generated activeness in viewing and new communication between exhibition and a visitor instead of the conventional exhibition exposition.

• Journal of Mechanical Science and Technology
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• 제14권10호
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• pp.1122-1130
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• 2000

Based on the value of the Lagrange multiplier and the degree of constraint activeness, a new update rule is proposed for penalty parameters of the ALM method. The theoretical exposition of this suggested update rule is presented by using the algorithmic interpretation and the geometric interpretation of the augmented Lagrangian. This interpretation shows that the penalty parameters can effect the performance of the ALM method. Also, it offers a lower limit on the penalty parameters that makes the augmented Lagrangian to be bounded. This lower limit forms the backbone of the proposed update rule. To investigate the numerical performance of the update rule, it is embedded in our ALM based dynamic response optimizer, and the optimizer is applied to solve six typical dynamic response optimization problems. Our optimization results are compared with those obtained by employing three conventional update rules used in the literature, which shows that the suggested update rule is more efficient and more stable than the conventional ones.