• International Journal of Aeronautical and Space Sciences
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• 제18권3호
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• pp.522-534
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• 2017

According to the characteristics of salvo attack for the multiple flight vehicles (MFV), the design of cooperative guidance law can be converted into the consensus problem of multi-vehicle system through the concept of multi-agent cooperative control. The flight vehicles can be divided into leader and followers depending on different functions, and the flight conditions of leader are independent of the ones of followers. The consensus problem of leader-follower multi-vehicle system is researched by graph theory, and the consensus protocol is also presented. Meanwhile, the finite time guidance law is designed for the flight vehicles via the finite time control method, and the system stability is also analyzed. Whereby, the guidance law can guarantee the line of sight (LOS) angular rates converge to zero in finite time, and hence the cooperative attack of the MFV can be realized. The effectiveness of the designed cooperative guidance method is validated through the simulation with a stationary target and a moving target, respectively.

• 융합경영연구
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• 제12권4호
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• pp.77-85
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• 2024

Purpose: The purpose of this study was to investigate the effect of organizational management competency according to the personality types of Project Management Office (PMO) leader on the Project Performance and to further verify the mediating effect of positive psychological capital. Research design, data and methodology: The collected data of this study was statistically checked using SPSS 25.0 program and AMOS 25.0, and the result analysis and hypothesis verification were conducted by applying demographic frequency analysis, descriptive statistics, model fit, reliability, validity, correlation analysis, and structural equation modeling. Results: The personality types of the project Management Office (PMO) leader had an effect on positive psychological capital and positive psychological capital had a mediating effect between project performance. Conclusion: Since the essence of project Management Office (PMO) leadership for organizational management exists in a smooth mutual relationship between the leader and the project members, it is necessary to expand the leadership education that strengthens the positive psychological capital and to manage the communication ability of the PMO leader continuously in terms of personnel management practice.

• 한국융합학회논문지
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• 제11권6호
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• pp.227-235
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• 2020

본 연구는 주로 의사결정과제를 통해 검증되어왔던 무작위적 리더 선출 방법의 우수성을 실제 수행과제로 확장시켰고, 리더 선출 방법과 집단 효능감의 집단수행에 대한 상호작용효과를 살펴보았다. 2(리더 선출 방법: 공식적/무작위적) × 2(집단 효능감: 저/고) 피험자간 실험설계를 통해 집단수행에 대한 영향을 검증했다. 연구 결과, 리더 선출 방법의 주효과가 유의하여 공식적으로 리더가 선출된 집단보다 리더가 무작위적으로 선출된 집단의 수행이 유의하게 높았다. 또한, 두 변인 간의 상호작용이 유의하였는데, 집단 효능감이 낮을 때는 리더가 공식적으로 선출된 집단과 무작위적으로 선출된 집단 간의 수행차이가 유의하지 않았으나, 집단 효능감이 높을 때는 리더가 공식적으로 선출된 집단보다 무작위적으로 선출된 집단의 수행이 유의하게 높았다. 본 연구의 결과는 높은 집단 효능감이 집단의 수행에 긍정적인 영향을 주기 위해서는 리더가 집단의 사회정체성을 손상시키지 않는 방법(예. 리더와 구성원의 차이점을 부각시키기 보다는 동질성에 대한 지각을 높이는 방식)으로 선출되어야 한다는 점을 제안함으로써 조직과 작업 현장에 기여할 수 있다. 향후에 본 연구를 작업 팀으로 확장하여 연구할 필요성을 논의하였다.

• 한국프랜차이즈경영연구
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• 제7권1호
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• pp.13-20
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• 2016

Purpose - In the past, the chain hotel chefs only serve food to their customers. However recently, the hotel chefs play a pivotal role in hotel including considering various customer preferences, safety and nutrition of food, and increasing profits through effective human resource management and inventory control. With the change of the chain hotel chef's' roles, pygmalion leadership, one of new leadership styles, focuses on the effect that leader's positive expectation let subordinates have motivation and more engage in work. This study investigates the effect of chain hotel chef's pygmalion leadership on leader trust and organizational trust. Research design, data, and methodology - This study was to investigate the structural relationships among chain hotel restaurant chefs' pygmalion leadership, hotel restaurant cooks' leader trust, organizational trust, and teamwork, and how leader trust and organizational trust play mediating roles in the relationship between pygmalion leadership and teamwork. In this model, pygmalion leadership includes 4 dimensions: Climate, Feedback, Input, and Output. Data were collected using self-administered questionnaire survey on cooks of Deluxe hotel restaurants located in Seoul and Gyonggi-Do. The samples for data analyses were 243 excepting unusable responses. Result - The findings can be summarized as follows: First, climate and feedback had a positive effect on leader trust, respectively. Second, feedback and output had a statistically positive effect on organizational trust, respectively. Third, leader trust had positive effects on organizational trust and teamwork. Fourth, organizational trust had a significant effect on teamwork. Conclusions - As a chain hotel chef treats his/her staffs sincerely, they will be more engaged in work by establishing trust in their leader. Ultimately, it leads to higher sales profit and customer satisfaction. In addition, a hotel can encourage chefs and other staffs to treat each other as if the student-instructor relations, not just commanding staffs. Then, cooks build up their trust to their leader and organization for its sustained growth and development, and the internal bond in organization including teamwork is strengthened. Therefore, to strengthen teamwork and organizational trust, there should be active communication, knowledge sharing, goal sharing, and cooperation between chefs and cooks.

• 한국항공우주학회지
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• 제36권9호
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• pp.859-866
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• 2008

본 논문에서는 다수 비행체의 편대 비행 시 상호 기하학적 관계 유지에 필요한 유도 법칙과 비선형 시뮬레이션 결과를 제시하였다. 편대 내의 각 비행체는 편대 Leader를 제외하고 모두 Leader와 Follower의 역할을 동시에 맡으며, Leader에 의한 명령은 모든 Follower에게 분배되고 따라서 편대를 이루는 모든 비행체들의 동시기동비행(Synchronized Flight)을 가능하게 한다. 편대 비행 유도 법칙은 가까운 미래 시각에 예상되는 기하학적 오차 그리고 Lyapunov 안정성 이론에 근거하여 도출하였고, 정찰과 감시 임무 예제에 관한 고정밀 비선형 시뮬레이션 결과를 통하여 제안된 유도 법칙의 성능을 검증하였다

• 유통과학연구
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• 제19권7호
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• pp.41-50
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• 2021

Purpose: This study aims to analyze the effect of nepotism on work engagement. In addition, this study aims to analyze the mediating effect of leader legitimacy in the relationship between nepotism and work engagement in the distribution industry. Research design, data and methodology: 236 survey data were collected and analyzed using SPSS 22 and AMOS 22. For the assessment of the goodness of fit of the models, indexes such as TLI, CFI, RMSEA were used. For hypotheses testing, we used SEM method and bootstrapping. Results: The results of this study are as follows. First, the relationship between nepotism and the employee's work engagement was not significant. Second, it was revealed that nepotism negatively affects the leader's legitimacy. Third, it was found that a leader's legitimacy had a positive effect on the employees' work engagement. Fourth, leader legitimacy was found to mediate the relationship between nepotism and employees' work engagement. Conclusion: We found that the effect of nepotism can be changed depending on contingent factors. This study contributed to the accumulation of nepotism theory by demonstrating the process in which nepotism, which has been insufficient so far, affects outcome variables. Based on the empirical results of this study, theoretical and practical implications, limitations, and future research directions were discussed.

• 한국산학기술학회논문지
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• 제15권7호
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• pp.4554-4561
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• 2014

최근에 기존의 컴퓨터 시스템에서 결함허용 분산 어플리케이션을 설계하는데 필요한 요소를 몇 개의 중요한 패러다임으로 구분하여 단순화 되어 왔다. 리더 선택 프로토콜은 그 중에서도 가장 눈에 띄고 비중 있는 프로토콜로 알려져 있다. 선택 프로토콜은 그룹통신이나, 데이터의 원자적인(atomic) 커밋(commit), 복제 데이터의 관리와 같은 프로토콜 코디네이터가 필요한 분야에서 기초적인 설계 초석으로 유용하게 이용 될 수 있기 때문이다. 그러나 이러한 유성성에도 불구하고 기지국 기반 무선 통신 환경에서 아직까지 리더 선택의 문제를 다룬 연구는 많지 않았다. 본 논문에서는 기지국 기반 무선 통신 환경에서 리더 선택 프로토콜을 위한 선택 알고리즘을 제시하고 설계하고자 한다. 또한 설계된 선택 알고리즘은 다른 알고리즘에 비해 결함허용 측면에서 매우 효율적임을 보인다.

• 수산해양기술연구
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• 제56권3호
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• pp.238-245
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• 2020

In this study, a motion control problem for the vessel towed by towing ship on the sea is considered. The towed vessel does not have self-control capabilities such that its course stability totally depends on the towing ship. Especially, in the narrow canal, river and congested harbor area, extreme tension is required during the towing operation. The authors, therefore, propose a new control system design method in which the rudder is activated to provide its maneuverability. Based on the leader following system configuration, a nonlinear mathematical model is derived and a backstepping control is designed. By experiment results with nonlinear control framework, the usefulness and effectiveness of the proposed strategy are presented.

• 유통과학연구
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• 제14권1호
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• pp.75-84
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• 2016

Purpose - In accordance with the recent changes in the management environment, leaders are required to have an ability of drawing and inducing potential of each worker. Coaching, as one of the strategies of human resources development, is drawing people's attention. This study aims to inquire about the mechanism of leader's coaching behavior which influences the attitude and behavior of workers. Firstly, this study intends to illustrate what kind of influences the leader's coaching behavior can give on organizational citizenship behavior and turnover intention of workers. Secondly, it plans to verify the mediating effect of authentic leadership in the relationship between leader's coaching behavior and organizational citizenship behavior and turnover intention of workers. Thirdly, it aims to prove the moderating effect of emotional intelligence in the relationship among leader's coaching behavior, organizational citizenship behavior and turnover intention of workers. Research design, data and methodology - In order to figure out how the leader's coaching behavior influences attitude of workers, authentic leadership is considered as mediating effect. As for a moderating effect, we have determined emotional intelligence which attracts attention in the recent studies on organizational behavior, so as to investigate the correlation among variables. As for study sample, it was targeted to 236 organizational members of distribution corporations whose leader's coaching behavior is required. For reaching the purpose of study, SPSS 20 was applied for the analysis. Results - The research findings can be summarized as follows: Firstly, leader's coaching behavior gives significant positive influences on organizational citizenship behavior. Moreover, leader's coaching behavior gives negative influences on turnover intention of organizational members. Secondly, the mediating effect of authentic leadership was proved in the relationship between leader's coaching behavior and attitude of workers. Based on the analysis, it turned out that authentic leadership doesn't give a mediating effect in the bilateral relationship. Lastly, the moderating effect of emotional intelligence was proved in terms of how the leader's coaching behavior influences the attitude of workers. The research result shows that the emotional intelligence influences towards the negative direction, in the correlation between coaching behavior and organizational citizenship behavior On the other hand, in the relationship with turnover intention, It was significant effect. Conclusions - Based on the research findings, we have intended to inquired about the mechanism of leader's coaching behavior which influences the attitude and behavior of workers. Furthermore, in the operational level, the following implications can be given: the importance of coaching activation in the operational level was confirmed, through inquiring into the influence of leader's coaching behavior on workers. Moreover, the importance of emotional intelligence, which has been steadily raised, was also confirmed. It is necessary for future study to carry out additional research on various factors of coaching which can influence the effectiveness of coaching, for instance, coaching process, coach's competency, characteristics of coaching customers, relationship with coaching customers and coaching system.

• 문화기술의 융합
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• 제6권2호
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• pp.271-280
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• 2020

본 연구는 글로벌 기업의 집단형 문화와 합리형 문화 간의 관계에서 여성리더 특성의 매개효과를 검증하고자 하는 것이 연구목적이다. 본 연구를 통하여 촉진자, 선도자, 생산자, 지시자 리더십 간의 관계에서 여성리더의 직위와 경력이 매개효과로 미치는 영향을 분석하고자 하였다. 개념적 연구모형은 집단형 문화, 여성리더 특성, 합리형 문화의 3개 요인으로 설계되었다. 글로벌기업을 대상으로 리더십 유형과 조직문화와 관련된 500개의 조사대상표본에 기초해서 구조방정식모형을 사용하여 집단형 문화와 합리형 문화 간의 관계에서 여성리더 특성의 매개효과를 분석한 결과 다음과 같은 연구결과를 얻었다. 첫째, 촉진자 리더십은 여성리더의 직위와 경력에 긍정적인 영향을 미쳤다. 둘째, 선도자 리더십은 여성리더의 경력에 긍정적인 영향을 미친 반면에, 여성리더의 직위에 직접적인 영향을 미치지 않았다. 셋째, 여성 리더의 직위와 경력은 생산자 리더십에 직접적인 영향을 미치지 않았다. 넷째, 여성 리더의 직위와 경력은 지시자 리더십에 긍정적인 영향을 미쳤다. 다섯째, 촉진자 리더십은 생산자 리더십에 긍정적인 영향을 미쳤고, 선도자 리더십은 지시자 리더십에 긍정적인 영향을 미쳤다. 여성리더 특성의 매개효과를 통제한 상태에서 본 연구의 결과는 집단형 문화가 합리형 문화에 미치는 영향을 실증연구를 통해서 검증함으로서 학술적 기여도를 높였으며, 또한 정책적, 혹은 실무적 시사점을 제시한 연구이다. 본 연구는 리더십 유형과 조직문화 연구 분야에서 여성리더의 직위와 경력 변수를 사용하여 매개효과를 검증하였다는 점에서 의미 있는 연구이다.