• 지식경영연구
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• 제14권2호
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• pp.89-116
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• 2013

The purpose of this research was to investigate relations among empowering leadership, knowledge sharing, intrinsic motivation and trust on supervisors. In addition, the purpose of this study was to investigate if trust on supervisors would mediate the effect of empowering leadership on outcome variables. A research model and hypotheses were developed to examine the theoretical research questions. To test the model proposed, survey data from 44 companies in various industries were collected by distributing 510 questionnaires to team member. The final set of data utilized to test hypotheses included 470 responses. The empirical results of the analysis are as follow. Empowering leadership was shown to influence followers' knowledge sharing. Meantime, empowering leadership was influencing intrinsic motivation and it was positively related to followers' trust on their supervisors. Finally, trust on supervisors partially mediated between empowering leadership and outcome variables. We found that empowering leadership was an important factor in a way that it closely related to variables of organizational competency, such as knowledge sharing, intrinsic motivation and trust in organization.

• International Journal of Computer Science & Network Security
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• 제23권8호
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• pp.159-167
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• 2023

Objective: • To detect black hole and warm hole attacks in wireless sensor networks. • To give a solution for energy depletion and security breach in wireless sensor networks. • To address the security problem using strategic decision support system. Methods: The proposed stackelberg game is used to make the spirited relations between multi leaders and multi followers. In this game, all cluster heads are acts as leaders, whereas agent nodes are acts as followers. The game is initially modeled as Quadratic Programming and also use backtracking search optimization algorithm for getting threshold value to determine the optimal strategies of both defender and attacker. Findings: To find optimal payoffs of multi leaders and multi followers are based on their utility functions. The attacks are easily detected based on some defined rules and optimum results of the game. Finally, the simulations are executed in matlab and the impacts of detection of black hole and warm hole attacks are also presented in this paper. Novelty: The novelty of this study is to considering the stackelberg game with backtracking search optimization algorithm (BSOA). BSOA is based on iterative process which tries to minimize the objective function. Thus we obtain the better optimization results than the earlier approaches.

• 산업융합연구
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• 제19권3호
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• pp.13-26
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• 2021

본 연구에서는 집단전체수준에서의 카리스마적 리더십이론을 제시하고 검증하기 위한 일환으로 카리스마적 리더행동, 부하들의 리더에 대한 자발적 수용, 집단성과, 그리고 집단혁신행동이 집단전체수준에서 성립할 것이란 예측을 하였다. 가설검증결과 집단전체수준에서 카리스마적 리더행동이 부하들의 리더에 대한 자발적 수용과 정(+)의 관계를 가지는 것으로 나타나 가설 1이 검증되었다. 또한 부하의 리더에 대한 자발적 수용이 집단성과와 집단혁신행동에도 집단수준에 기초하여 긍정적인 영향을 미치는 것으로 나타나 가설 2가 검증되었다. 이와 더불어 부하들의 리더에 대한 자발적 수용이 카리스마적 리더행동과 집단성과와 집단혁신행동 간의 관계를 집단수준에 기초하여 매개할 것이란 가설 3을 검증하기 위하여 매개회귀분석과 Sobel Test를 실시한 결과 가설 3이 검증되었다. 본 연구는 집단수준에서 카리스마적 리더십이론을 검증하였다는 점에서 이론적 시사점이 있으며 집단성과를 위한 리더십 개발이라는 점에서 실무적인 시사점이 있다. 마지막으로 본 연구가 가지는 한계점과 향후 연구방향에 대한 논의도 이루어졌다.

• 복식문화연구
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• 제6권2호
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• pp.45-54
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• 1998

The purpose of this study were to (1) suggest that the combination of self-concept and innovation-theory could help in fashion marketing strategies and (2) to find unique characteristics of fashion innovators in self-concept. For this purposes, the self-concept theories and the related research studies were reviewed, and a valid and reliable self-report scale was used to measure fashion innovativeness for 236 female college students. The t-test were used to compare the self-concept items between innovators and followers. The results are as follows; 1. The fashion consumption is a manifestation of self image and consumers choose products that are consistent with their self-concept. 2. Fashion innovators describe themselves as more modern, indulgent, colorful, vain, liberal, delicated, dominant, and organized than followers. The implications of the findings for fashion merchandising are discussed.

• 전기학회논문지
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• 제60권8호
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• pp.1592-1598
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• 2011

In this paper, a formation control method based on the leader-following approach for nonholonomic mobile robots is proposed. In the previous works, it is assumed that the followers know the leader's velocity by means of communication. However, it is difficult that the followers correctly know the leader's velocity due to the contamination or delay of information. Thus, in this paper, an adaptive approach based on the parameter projection algorithm is proposed to estimate the leader's velocity. Moreover, the adaptive backstepping technique is used to compensate the effects of a dynamic model with the unknown time-invariant and time-varying parameters. From the Lyapunov stability theory, it is proved that the errors of the closed-loop system are uniformly ultimately bounded. Simulation results illustrate the effectiveness of the proposed control method.

• 인지과학
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• 제6권1호
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• pp.5-30
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• 1995

포더와 그의 동조자들은 연결주의 모형이 구성적 구조를 보여주지 못하고,또 보여줄 수 있더라도 자신들의 고전주의 모형을 물리적인 차원에서 구현하는 이론일 뿐이라고 공격한다. 연결주의가 구성적 구조를 보여주지 못한다고 주장할때 중요하게 쓰이는 개념이 '고전적 요소성'이다.그런데 글쓴이는 구성적 구조를 보이기 위해서는 고전적 요소성이 필요없으며, 연결주의 모형이 고전적 요소성을 갖추고 있지 못하기 때문에 고전주의의 한갓 구현 노릇에서 빠져 나올수 있다고 주장하겠다.

• 지식경영연구
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• 제17권1호
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• pp.91-111
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• 2016

This study empirically investigated the relationships between servant leadership and key variables (knowledge sharing and individual creativity), and the mediating effect of affective commitment with the survey of 213 Korean employees. Based on the sample of 213 employees, the empirical results are as followings; (1) Servant leadership is positively related to affective commitment, knowledge sharing, and creativity. (2) Affective commitment partially mediates the relationship between servant leadership and knowledge sharing. (3) Affective commitment partially mediates the relationship between servant leadership and creativity. In conclusion, this study confirmed that the servant leader and members with the affective commitment may be best qualified for knowledge sharing and creative performance. When employees recognize that their managers follow the characteristics of servant leadership, then the employees are more likely to absorb in their task, which increases creative performance and knowledge accumulation. Based on the results, this study suggests an ample implication for leaders in any organization to boost their relationships with followers and to enhance their knowledge sharing and creative idea for the growth of organization.

• Journal of Communications and Networks
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• 제17권6호
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• pp.602-608
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• 2015

In this paper, the limited error tracking problem is investigated for distributed leader-following wireless sensor networks (LFWSNs), where all sensors share data by the local communications, follower sensors are influenced by leader sensors directly or indirectly, but not vice versa, all sensor nodes track a reference state that is determined by the states of all leader sensors, and tracking errors are limited. In a LFWSN, the communicating graph is mainly expressed by some complete subgraphs; if we fix subgraphs that are composed of all leaders while all nodes in complete subgraphs of followers run on the sleeping-awaking method, then the fixed leaders and varying followers topology is obtained, and the switching topology is expressed by a Markov chain. It is supposed that the measurements of all sensors are corrupted by additive noises. Accordingly, the limited error tracking protocol is proposed. Based on the theory of asymptotic boundedness in mean square, it is shown that LFWSN keeps the limited error tracking under the designed protocol.

• 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.

• Industrial Engineering and Management Systems
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• 제12권2호
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• pp.118-129
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• 2013

In this study, we intend to identify key financial variables that can accurately classify Green IT leaders against Green IT followers. In particular, we build and compare single and meta-classifiers to identify the relationship between environmental performance and financial performance, while focusing on selecting and interpreting a final prediction model with a smaller set of financial performance indicators. Our experimental results demonstrate that several key variables representing the size, financial resources, operational efficiency, and risk-taking tendency of an organization can successfully identify Green IT leaders with approximately 90% of accuracy. In addition, we find that Green IT leaders show a higher utilization rate of Web pages as a green marketing channel than Green IT followers while they share common layouts of Web publication to build green IT brands with some differences.