• 전기학회논문지
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• 제61권7호
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• pp.1032-1040
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• 2012

This paper proposes controller of leader robot considering following robot with input constraints based on leader-following approach. In the previous formation control researches, it was assumed that leader and follower is same object. If leader robot drives as maximum speed that the initial position errors still remain even if following robot have same velocity as a leader. In the situation that velocity of following robot is lower than its leader robot, following robot cannot follow leader robot. Furthermore, the following robot will not be able to made formation with leader robot and keep proximity communication or sensing range. Therefore, multiple mobile robot system using leader-following method should be guaranteed range to get information each other. In this paper, Leader robot is driving to goal position using linear controller and following robot is following trajectory to be made from leader robot. We assume that following robot has input constraints to realize different performance between leader robot and following robot. We design controller of leader robot for desired goal position including the errors between formation and following robot. Thus, we propose leader robot controller considering input constraints of following robot. Finally, we were able to confirm the validity of the proposed method based on simulation results.

• 한국초등과학교육학회지:초등과학교육
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• 제29권3호
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• pp.364-377
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• 2010

The purpose of this study was to analyze the within-group verbal interaction according to leader's personality in Thinking Science activities. For this study, 2 homogeneous small groups by cognitive level selected from one class of sixth grader. Each group was comprised of four students. Leaders of two groups selected from the results of NEO personality assessment and teacher's observation. One who got high scores in extraversion and agreeableness is named a sociable leader, the other who got low scores in extraversion and agreeableness is named a taciturn leader. Verbal interactions during small group activities were audio/video taped and students' interactions were classified into on-task and off-task. On-task included cognitive aspect and affective aspect. Interactions of cognitive aspect were divided into low and high level, also interactions of affective aspect were divided into positive and negative interaction. The results of this study showed that the verbal interactions in the sociable leader group were more activated than those in the taciturn leader group. Also, interaction level of the sociable leader group in cognitive aspect was higher than those of the taciturn leader group. In affective aspect, interaction pattern of the sociable leader group was similar to those of the taciturn leader group. The characteristics of leader's interaction are as follow. The rates of cognitive aspect in the sociable and the taciturn leaders' interactions were much higher than those of affective aspect. This tendency was especially remarkable in the taciturn leader's interactions. However, interaction level of the sociable leader in cognitive aspect was higher than those of the taciturn leader. In affective aspect, positive interaction rate of the sociable leader and the taciturn leader were higher than negative interaction rate.

• 지식경영연구
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• 제18권2호
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• pp.23-43
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• 2017

This study analyzes the structural relationships among communication pattern of leader, followers' trust in leader, organizational commitment and innovative behavior. In order to analyze hypotheses, the survey was collected by distributing questionnaire to 250 workers in small and medium-sized companies. As a result, total 213 workers participated in the survey and their rates were included for the test process. The collected data analyzed structural equation modeling, a statistical program. The results of this study are as follows; First, supportive and reflective communication pattern of leader have meaningful positive influences on followers'trust in leader. Directive communication pattern of leader, by contrast, is negatively related to followers'trust in leader. Second, followers'trust in leader has a positive impact on organizational commitment. Third, organizational commitment has a positive effect on followers'innovative behavior. Based on these results, it can be said that followers'trust in leader is more important for boosting organizational commitment and innovative behavior because it has a positive effect on organizational commitment with supportive or reflective communication behavior of leader. Therefore, this study proposes practical benefits to leaders regarding how to display communication process and trust quality more effectively. Future studies are required to investigate the research agendas on the issues between communication patterns and innovative behavior.

• 수산해양교육연구
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• 제24권3호
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• pp.355-367
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• 2012

This paper focuses on understanding what kind of experience the women leadership education can provide for adult learners and how the learners grasp a characteristic of a women leader. For this, the research interviewed learner who complete the women leadership course at the P center in Busan. To this end, it is discussed in two sides. One side is about educational experience, the other side is about leadership. In the aspect of former approach, the leadership education shows the characteristic which is much closer to the meaning of the education itself rather than that of leadership. It not only put much emphasize on the recovery to the self but also shows the relation-oriented characteristic like building up social net-work. In the aspect of the latter, by connecting the woman and leader, women expects they wish to be a 'trustful leader'. For them, 'trustful leader' is the true leader. In addition it also means 'charismatic leader', 'servant leader', 'the leader with member to growth' and 'the leader with a rational and reasonable'. Although women acknowledge that women leader's authority and power is important for the realization of the real equality of women, at the same time, however, they worry about the possibility that this leader become a kind of a 'power-oriented leader' which causes conflict and suppress the weaker. This study argues that we need to concentrate more on the new perspective which focuses on the sharing and bordering occurred in inner gender rather than the former approach which focuses on the difference between genders.

• 대한영양사협회학술지
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• 제15권3호
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• pp.298-310
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• 2009

The purposes of this study were to examine school foodservice employees' awareness on dietitians' service leadership and to analyze the effects of the service leadership on employee attitudes (leader reliability, value correspondence, and leader satisfaction). Questionnaires were distributed to 208 school foodservice employees from November 2007 to January 2008. The results were as follows. First, in terms of the employees' perception on the dietitians' service leadership, service belief gained the highest score, followed by insight, attitude, and ability: the average score was 3.8 point. Second, the leader reliability and leader satisfaction scores perceived by the employees were over 3.8 point on average but the awareness on the value correspondence was 3.43 point. Third, among the service leadership factors, service belief (p<0.001) and insight (p<0.001) had positive effects on leader reliability. Also, service belief (p<0.01), service ability (p<0.001), and insight (p<0.01) had positive effects on value correspondence. Finally, service belief (p<0.001), service ability (p<0.05), and insight (p<0.001) had positive effects on leader satisfaction. Fourth, a hypothesis test using path analysis revealed that dietitians' service leadership produced positive effects on school foodservice employees' attitudes (leader reliability, value correspondence, and leader satisfaction). In conclusion, the service leadership of dietitians directly contributed to leader satisfaction, value correspondence, and leader reliability in school foodservice employees.

• 한국항공운항학회지
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• 제29권1호
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• pp.9-19
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• 2021

This thesis researched student pilots at certified flying school to prove several things as follows. First, this study tried to find out the influence of instructor's leader trust to student pilot. Second, this study also tried to investigate the influence of student pilot's psychological stability from leader trust. Third, this study tried to prove the mediation effect of leader trust between flight instructor's transformation leadership and the student pilot psychological stability. The result of empirical research are as follows. First, the result of the verification of the relationship between transformative leadership and trust of leader showed that transformative leadership has a positive (+) influence to trust of leader. Second, the result of verification between leader trust and psychological stability relationship showed that trust of leader gives positive(+) influence to psychological stability. Third, the result of verification between transformative leadership and psychological stability showed that trust of leader gives positive(+) influence to psychological stability. I discussed implication from this study at the end and presented future research direction.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 학술대회지
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• pp.552-557
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• 2004

Mobile Ad Hoc Network (MANET) is a network architecture, which has no backbone network and is deployed temporarily and rapidly in emergency or war without fixed mobile infrastructures. All communications between network entities are carried in ad-hoc networks over the wireless medium. Due to the radio communications being extremely vulnerable to propagation impairments, connectivity between network nodes is not guaranteed. Therefore, previously developed routing algorithms in wired networks cannot be used. And many new algorithms have been undergone. This study proposes the secondary leader approach to the cluster based routing protocol(CBRP). In case, the primary leader becomes abnormal status so that the primary leader cannot participate the communications between network entities, the secondary leader immediately replaces the primary header without selecting process of the new primary leader. The performances of proposed algorithm ACBRP(Advanced Cluster. Based Routing Protocol;CBRP using secondary leader) are compared with CBRP and results are presented in order to show the effectiveness of the algorithm.

• Asia Pacific Journal of Business Review
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• 제6권1호
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• pp.1-19
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• 2021

This research is based on the relevant research literature on the voice behavior, this study examines the influence of trust in leader on voice behavior. And this study examines the role of psychological safety as a mediating between trust in leader and voice behavior. This study uses SPSS for data analysis. The results of the study are as follows: This study explains the impact of trust in leader on psychological safety, and explains the impact of trust in leader on organization members' voice behavior, as well as the impact of psychological safety on organization members' voice behavior. And this study also explains the influence of psychological safety as an intermediary effect on trust in leader and voice behavior. Overall, the higher the level of organization members' trust in leader, the more they will increase the level of psychological safety of the organization members, which will prompt the organization members to make more voice behavior.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.338-344
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• 2009

Organizational learning of construction team has been long addressed in the literatures, but the mechanism of learning and the influence of leader in the team still remain vague. This paper presents a computational model (OLT) depicting the mechanism and the influence of leader in a systemic way. The OLT model is a multi-agent system based on some eloquent propositions proposed in previous researches. The proposed model is preliminarily validated by some toy-problem simulations. In the OLT model, the leader is assigned as a project manager. The results show that a proper leader can effectively improve the learning process and the result-in performance, in which the team learning is mainly affected by both the leader and the majority in a team. Based on our findings, two propositions are concluded accordingly: (1) Learning of a team would be enhanced if a proper leader is assigned; (2) The effectiveness of learning would increase in a team, in which the members retain explorative attitudes.

• 한국콘텐츠학회논문지
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• 제17권12호
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• pp.308-318
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• 2017

본 연구는 노인요양시설의 시설장과 중간관리자의 리더십이 요양보호사의 케어부담감에 어떠한 영향을 미치는지를 살펴보고자 했다. 서울과 경기지역의 노인요양보호시설에 근무하는 요양보호사 400명을 대상으로 조사가 이루어졌으며, 총 391명의 자료가 분석에 사용되었다. 시설장의 리더십과 중간관리자의 리더십이 케어부담감에 어떠한 영향을 미치는지를 단계적으로 파악하기 위해, 위계적 회귀분석을 실시하였다. 그 결과, 월평균소득은 요양보호사의 케어부담감에 유의한 영향을 미치고 있어, 요양보호사의 급여수준을 현실화 및 안정화 시키는 방안이 시급하게 요구되었다. 또한, 중간관리자의 리더십이 시설장의 리더십보다 크게 영향력을 미치고 있어, 중간관리자의 리더십이 실질적으로 요양보호사가 핵심직무인 케어서비스를 제공하는 데 있어 케어부담감을 감소시켜 줄 수 있는 것으로 나타났다. 이를 통해, 노인요양시설에서 실무자인 요양보호사에게 업무의 혼돈을 줄여주고 지속적으로 근무할 수 있도록 이끌어 주는 중간관리자의 현장실무리더십 개발이 시급함을 제안하였다.