Earticle

본 연구는 CEO의 이미지가 조직의 이미지를 형성하거나 조직의 이미지를 개선하는데 중요한 변수로 작용한다는 이론을 토대로 SNS의 팔로워 수가 많은 CEO의 메시지와 이미지는 개인적 선호를 넘어 기업의 이미지에까지 영향을 미칠 수 있다는 가정에서 출발하였다. 이에 따라 소셜 네트워크 서비스의 하나인 트위터의 팔로워 수가 가장 많은 CEO인 이찬진과 표현명의 트위터 메시지를 분석하여 CEO의 이미지를 조사하는 한편 각 CEO들의 팔로워들이 평가하는 CEO에 대한 이미지를 살펴보았다. 이미지 분석의 척도로는 CEO의 성품 항목에 청렴성, 솔직함, 정직성, 신뢰성, 따뜻함을 포함하였으며, CEO 능력 항목은 경청능력, 조직융합성, 정보제공, CEO 외적 조건 항목은 사회참여와 유머로 구성하였다. 연구 결과 이찬진의 경우 정보제공, 경청, 겸손, 솔직함, 비전 순으로 이미지가 표현되었으며, 표현명의 경우 정보제공, 경청, 신뢰성, 유머 순으로 나타났다. 팔로워들이 본 CEO 이미지에 있어서는 이찬진의 경우 CEO 능력이 가장 두드러졌고, 표현명은 CEO 외적조건의 점수가 높게 나타났다.

The purpose of this current study is to examine CEO image presented in messages of CEO twitter and perceived by CEO twit followers. To conduct this study, we selected two CEOs, ChanJin Lee and HyeonMyeong Pyo who are top ranking based on a number of followers in Korea. We investigated each CEO's Tweet, RT, Reply, and RT+Reply using three CEO image factors: CEO personality, CEO quality, and CEO outward characteristics. Also, followers were asked what image mostly they have based on those three image factors. The results showed that for ChanJin Lee, CEO quality were more presented in twitter than CEO personality and CEO outward characteristics, and CEO Lee's followers also perceived that Lee has more CEO quality image than others. Pyo, HyeonMyeong has CEO quality image in twitter than others, and his followers thought that he had more CEO outward characteristics image than others.

본 연구는 팔로워십의 주요역량을 도출하고 조직유형에 따라 팔로워십 주요역량에 대한 인식차이가 있는가를 분석함으로서 조직유형별 팔로워십 역량개발의 기반을 마련하는 것을 목적으로 한다. 이를 위해 문헌연구와 전문가검토를 실시했고 규범적 조직구성원 94명과 실리적 조직구성원 108명 등 총 202명을 대상으로 독립표본 t검증을 통해 집단간 인식차이를 분석했다. 연구결과는 다음과 같다. 첫째, 팔로워십의 주요역량은 조직목표공유, 지적능력, 정보전달, 협력, 문제해결능력, 제안, 책임감, 정직성, 신뢰성, 열정, 용기, 자발성, 충성심, 리더 인정, 독립성, 유연성, 혁신성, 윤리성, 의사소통, 갈등관리 등 20가지로 분석되었다. 이는 선행연구에서 제시된 역량을 포함하고 있으며 그 결과를 지지하고 있다. 둘째, 팔로워십 주요역량 중 규범적 조직과 실리적 조직간 유의미한 차이가 나타난 것은 협력, 문제해결능력, 용기, 윤리성으로 분석되었다. 이 중 용기와 윤리성은 규범적 조직구성원들의 인식이 상대적으로 높았으며 협력과 문제해결능력은 실리적 조직구성원들의 인식수준이 높았다. 셋째, 동일한 조직의 구성원간 팔로워십 주요역량에 대한 인식차이는 나타나지 않았다. 이를 통해 동일한 조직 내에서 공통적으로 요구하거나 필요로 하는 팔로워십 역량이 존재한다는 것을 알 수 있다. 본 연구의 결과는 팔로워들에게 공통적으로 요구되는 역량을 거시적인 관점으로 규명했다는 점에서 의의가 있다. 그리고 조직유형에 따라 효과적인 팔로워십 발휘에 필요하다고 인식하는 역량의 차이를 제시함으로 인해 조직 의 HRM 및 HRD담당자들에게 해당조직에 적합한 팔로워를 선발, 육성, 개발하는 것에 대한 기반을 마련해주었다는 시사점을 제공하고 있다.

The purpose of this study is to provide the foundation for developing followership competency. The study was carried out through review of literature and contents analysis and independent t-test was performed to compare the two groups to analyze the perceptual differences in followership competency. The two groups were divided by Etzioni’s model and named normative and utilitarian organization. The sample size was 202. The results showed that first, main followership competency factors were the same as those in precedent studies. Second, the significant perceptual differences in followership competency between two groups were found in ‘Cooperation’, ‘Problem Solving Ability’, ‘Courage’ and ‘Ethics’. Especially, normative organization had relatively higher sense of ‘Courage’ and ‘Ethics’ than utilitarian organization. Third, in the same organization, there was no meaningful perceptual difference in followership competency. It is meaningful that this study identified common factors required for followers in a broad view and found the perceptual difference in followership competency by organization types. Thus, this study is expected to contribute to developing proper followership competency for each organization.

The stable motion has been judged by mathematical modeling of the conditions that a rocket flies flexibly to take an active part in atmosphere. In this paper, the rocket conditions consist of the air speed, thrust and automatic attitude control. Aerodynamic force, a critical trust and a critical air speed are determined by comparing mathematical knowledges with eigenfrequencies of vibration equation. And then rocket object model is designed. Parameters and eigenfrequencies are used in dimensionless forms for in general applications by eliminating restrictions such as dimension, weight and select of materials.

This study empirically examines follower gender as a crucial moderator connecting ethical leadership (EL) to organizational citizenship behavior (OCB) and, subsequently, to department performance. We analyzed survey data from 485 employees in Chinese SMEs using AMOS 18.0 and SPSS 18.0 to investigate both mediating and moderating effects, thus clarifying how EL influences performance. The results indicate that EL enhances department performance through OCB, with a stronger EL-OCB relationship observed among female followers compared to male followers. These findings provide practical guidance: promote ethical role modeling and procedural justice to encourage OCB, implement transparent decision-making and fair recognition to strengthen prosocial behavior, and customize communication, feedback, and recognition strategies in gender-responsive ways to optimize OCB's impact on performance. By moving beyond a leader-centric perspective to consider follower characteristics, this study delineates when and how EL translates into unit-level performance via OCB.

Recently, the follower force concept was introduced in the field of biomechanics to elucidate how the stability of the human spine could be maintained under substantial compressive loads. However, it has been controversial if the follower load concept is feasible to maintain the spinal stability by coordinating the appropriate trunk muscles. The purpose of this paper is to propose a computational model of the human spine and trunk muscles based on finite element method combining with an optimization formulation subjected to the follower force constraint in order to confirm that the follower force is related to the spinal stability and can be generated by the activation of trunk muscles. Spinal motion segments were modeled as linear elastic beam elements and trunk muscles were assumed to be static. In the optimization formulation, the muscle forces, the follower forces and shear forces, and the deformed shape of the spine model were investigated minimizing the sum of the magnitudes of follower forces under the constraints for the equilibrium equations, the directions of resultant forces, and the physiological bounds of muscle forces. Through a numerical example, it was confirmed that there was a combination of muscle activations transmitting external forces and moments along the follower force direction and the spinal stability was maintained with little change of spinal shape.

By employing the concept of equivalent linkage, this paper presents an analytical method for analyzing the mechanical errors of disk cam mechanisms with a flat-faced follower. The resulting error equations do not really involve the location of the curvature center of the cam profile, and locating the curvature center of the cam profile is not essential. The resulting errors are significantly affected by the pressure angle, and the smaller pressure angle will result in the smaller mechanical error. In the worst case, owing to the joined effects of various design parameters, the accuracy of the follower motion may degrade considerably. For the oscillating follower case, all acceleration error functions have a sudden change at every beginning and at every end of the motion even though the theoretical follower displacement is cycloidal motion.

This paper presents the dynamic stability of a cantilevered Timoshenko beam with a concentrated mass, partially attached to elastic foundations, and subjected to a follower force. Governing equations are derived from the extended Hamilton's principle, and FEM is applied to solve the discretized equation. The influence of some parameters such as the elastic foundation parameter, the positions of partial elastic foundations, shear deformations, the rotary inertia of the beam, and the mass and the rotary inertia of the concentrated mass on the critical flutter load is investigated. Finally, the optimal attachment ratio of partial elastic foundation that maximizes the critical flutter load is presented.

This study examines how French content creators engage in France-bashing kukppongkukppong?systematic criticism of French systems while positioning Korea ?as superior?through their social media content about life in South Korea. Based on digital ethnographic analysis of content from 15 French influencers across YouTube, TikTok, Instagram, and Twitch, along with audience responses, the research reveals how France-bashing kukppongkukppong operates as a form of comparative nationalism that positions Korea as superior to France across three consistent domains: safety, convenience, and infrastructure. Through performed authenticity markers?extended residence, cultural integration, and insider access claims?influencers gain authority to make comparative cultural statements that inadvertently contribute to Korean nation branding without direct government coordination. Even critical “deception videos” that challenge idealized Korea representations operate within the same comparative framework, serving similar audience functions of vicarious cultural engagement. The analysis demonstrates how individual lifestyle content aggregates into collective nation branding efforts, extending existing theory by revealing mechanisms through which social media influencers participate in informal cultural diplomacy. This research contributes to understanding how digital platforms create new forms of comparative nationalism that shape cross-cultural migration aspirations among young Europeans.

Product categorization has been considered as an effective tool in lowering user search costs and enhancing the discoverability of a product/seller from a large selection of products/sellers [1-2]. As such, many online commerce platforms often create or eliminate product categories to improve the matching between two different parties (e.g., sellers and buyers). It is also well-known that product categorization can be one solution to resolve the adverse effects of superstar (or ranking) effects for sellers. By offering product categories, platform service providers can increase the likelihood of matching between sellers and consumers [3] and create a less competitive marketplace by providing sellers with the opportunity to migrate to a less competitive category [4]. For consumers, product categories are expected to lower their search costs, allowing them to find goods or services that meet their needs more easily [5]. While the benefits of product categorization have been welldocumented, however, there is still a paucity of research concerning how supplier (or sellers) can utilize product re-categorizations especially in digital goods markets. Therefore, this study examines how digital good suppliers can leverage platform-driven product re-categorizations for success in mobile app software markets. Apple App store, the world’s largest app store market, created a new category (i.e., Shopping) in November 2015 and asked app developers to switch voluntarily from the existing category to the new one (i.e., Shopping from Lifestyle category). Using a quasi-experiment design, we attempt to examine the impact of category migration on app performance. To do this, we gathered data on mobile applications (henceforth, app) from Apple App Store recorded from April 9th, 2015, to November 4th, 2016. In our dataset, we observed the migration of apps within 4 weeks after the category split, with different apps moving from Lifestyle to Shopping at different times. Aggregated data on weekly base, we divided migrated apps into four groups based on their migration timing, with the first group moving in the same week as the new category introduction and the other three groups moving in consecutive weeks. For preliminary analyses, we compared the performance of apps four weeks before and after migration using T-test. Overall, the performance measures improved after the category split for both apps stayed in Lifestyle and those moved to Shopping, while movers show greater improvement compared to non-movers. Furthermore, we found that earlier movers revealed better performances than later movers. The preliminary findings indicate that product recategorization helps consumers to find appropriate digital goods for their needs, leading to improved performance. Based on our preliminary findings, we expect that re-categorization of digital goods can benefit both sellers and consumers by facilitating better matching between them. We further anticipate that our study will identify the most effective migration strategies for sellers by comparing the performance of apps based on their migration timing. Moreover, we expect our findings to provide salient contributions to the extant literature by shedding light on how sellers can utilize platform-driven product re-categorizations through migration. On the practical front, we expect to provide valuable information to platform owners and digital goods sellers.

본 연구에서는 추격 브랜드확장 상황에서 선행 브랜드확장과 추격 브랜드확장의 시장성과가 추격확장제품의 모브랜드에 미치는 반향효과에 대해 살펴보았다. 이를 위해 2(선행 브랜드확장의 시장성과: 성공/실패)${\times}$2(추격 브랜드확장의 시장성과: 성공/실패) 집단간 실험설계를 적용하였다. 가설검증은 이원분산분석(2-Way ANOVA)을 통해 이루어졌다. 그 결과, 추격 브랜드확장이 성공했을 경우 추격확장제품의 모브랜드에 대한 평가는 선행 브랜드확장이 실패했을 때 더 긍정적이었다. 하지만 추격 브랜드확장이 실패했을 경우 추격확장제품의 모브랜드에 대한 평가는 선행 브랜드확장이 성공했을 때 더 부정적인 것으로 나타났다.

The present research investigates the reciprocal effects of a previous brand extension and follower brand extension's market performance on a parent brand of a follower brand's extension product using 2(previous brand extension's market performance: success vs. failure)${\times}$2(follower brand extension's market performance: success vs. failure) between-subjects factorial design. The verification of the hypothesis is composed through 2-way ANOVA. As a result, the consumers' evaluation of the parent brand of a follower brand's extension product when the follower brand's extension succeed was more positive when the previous brand's extension has failed. However, when the follower brand's extension has failed, the consumers' evaluation of the parent brand of a follower brand's extension product was more negative when the previous brand's extension has succeeded.

본 연구는 리더 또는 구성원의 자기보고에 의한 일방향적인 LMX 지각과 성과와의 관계를 규명한 기존 연구와 달리, LMX지각의 정합성을 바탕으로 리더와 구성원의 LMX 지각의 균형과 불균형에 따른 조직정치지각 및 정서적 조직몰입의 차이를 규명하였다. 특히, 불확실성관리이론에 근거하여 LMX지각의 정합성 차이에 따른 집단별로 구성원의 조직정치지각이 정서적 조직몰입이 미치는 영향을 실증하였다. 연구결과, 먼저 정서적 조직몰입은 균형/LMX 고집단이 균형/LMX 저집단과 구성원 저평가집단에 비해 높았으며, 구성원 고평가집단 역시 균형/LMX 저집단과 구성원 저평가집단에 비해 높았다. 둘째, 조직정치지각은 균형/LMX 고집단이 균형/LMX 저집단과 구성원 저평가집단에 비해 낮았으며, 구성원 고평가집단은 균형/LMX 저집단에 비해 낮았다. 마지막으로 불확실한 정치적 업무환경에서 구성원의 정서적 조직몰입은 모든 집단(균형/LMX 고집단, 균형/LMX 저집단, 구성원 저평가집단, 구성원 고평가집단)에서 감소되었다. 특히, 내집단에 비해, 외집단의 구성원들이 정치적 업무환경 하에서 정서적 조직몰입에 더욱 부정적으로 반응하였다. 마지막으로 종합논의를 통해서 본 연구의 이론적 실무적 시사점과 한계점 및 향후 연구방향을 제시하였다.

The purposes of this paper examines the extant to which congruence in leader and follower rating of LMX quality is related to organizational commitment, and perceptions of organizational politics(POPs). A conceptual model is introduced that identifies four combinations of leader and follower LMX ratings of Cogliser et al.(2009): balanced/low LMX(low leader and follower LMX), balanced/high LMX(high leader and follower LMX), follower overestimation(low leader LMX/high follower LMX), follower underestimation(high leader LMX/low follower LMX). The summary of results based on a sample of 236 matched pairs of leaders and followers in KOREA is as follows: First, balanced/high LMX and follower overestimation were associated with relatively high levels of affective organizational commitment, and perceptions of organizational politics. However, follower underestimation and balanced/low LMX was related to low levels of follower outcomes. In particular, follower underestimation and balanced/low LMX were significantly different from balanced/high LMX and follower overestimation. Second, perceptions of organizational politics was negatively related to affective organizational commitment in the four LMX relationship types. Especially, the negative relationship between POPs and organizational commitment was stronger for people who are low as compared with high in LMX quality. Theoretical and practical implications of our findings as well as directions for future research are provided.

본 연구는 제주지역 중학생을 대상으로 청소년의 도덕적 이탈이 또래괴롭힘 상황에서의 가해동조행동에 미치는 영향과, 이 관계에서 주도적 공격성과 반응적 공격성의 매개효과를 검증하고자 하였다. 이를 위해 총 1,150부의 설문지를 배포하였으며, 불성실 응답을 제외한 999부를 최종 분석에 사용하였다. 분석 결과, 도덕적 이탈은 주도적·반응적 공격성 및 가해동조행동과 모두 유의한 정적 상관을 보였다. 또한 Hayes(2017)의 PROCESS Macro Model 4를 활용한 병렬 다중매개분석 결과, 도덕적 이탈은 가해동조 행동에 직접적인 영향을 미치는 동시에 주도적 공격성을 통해 간접적으로도 영향을 미치는 것으로 나타났다. 반면 반응적 공격성의 매개효과는 유의하지 않았다. 이는 가해동조행동이 충동적·방어적 반응보다는 도덕적 정당화를 통한 목표 지향적 공격성과 더 밀접하게 관련됨을 시사한다. 본 연구는 청소년의 가해동조행동 예방을 위해 도덕적 이탈 감소와 주도적 공격성 조절을 함께 다루는 개입의 필요성을 제안하였다는 점에서 의의가 있다.

This study examined the effects of adolescents’ moral disengagement on follower behavior in bullying situations and the mediating roles of proactive and reactive aggression among middle school students in Jeju, South Korea. A total of 999 student responses were analyzed using descriptive statistics, correlation analyses, and Hayes’ (2017) PROCESS macro. The results showed that moral disengagement was positively associated with proactive aggression, reactive aggression, and follower behavior in bullying situations. Mediation analyses further revealed that proactive aggression partially mediated the relationship between moral disengagement and follower behavior, whereas reactive aggression did not show a significant mediating effect. These findings suggest that follower behavior in bullying situations may be more strongly related to cognitive justification processes and goal-oriented aggression than to impulsive or defensive responses. The study highlights the importance of developing intervention programs that address moral disengagement and proactive aggression as strategies for preventing bullying among adolescent.

본 연구는 국내 기업의 근무자를 대상으로 집합적 리더십의 효과성을 연구하는데 있어 심리적 임파워먼트와 직무열의의 관계를 규명하는데 목적이 있다. 이를 위하여 집합적 리더십이 직무열의에 미치는 영향, 집합적 리더십과 직무열의간의 관계에서 심리적 임파워먼트의 매개효과 그리고 심리적 임파워먼트와 직무열의간의 관계에서 자기효능감의 조절효과를 검증하였다. 국내 7개 기업 237명을 대상으로 연구를 실시하였고, 수집된 자료의 분석과 통계처리를 위하여 SPSS21.0과 M-Plus6을 사용하였다. 연구 결과, 집합적 리더십은 종업원의 직무열의에 긍정적인 영향을 미치는 것으로 밝혀졌고 이 과정에서 종업원의 심리적 임파워먼트는 매개 역할을 하는 것으로 검증되었다. 이러한 결과는 집합적 리더십이 종업원의 심리적 임파워먼트를 촉진하고 직무열의에 긍정적인 영향을 미치는 주요 변인임을 입증하는 것이다. 종업원의 심리적 임파워먼트와 직무열의의 관계에서 종업원의 자기효능감은 조절효과를 보이는 것으로 나타났다. 마지막으로, 본 연구 결과가 주는 이론적 및 실무적 함의를 논하였으며, 마지막으로 연구의 한계 및 향후 연구방향을 제시하였다.

The purpose of this study is to examine the relationship between collective leadership and employee's work engagement and psychological empowerment. This study tested the impact of collective leadership on employee's work engagement and the mediating role of psychological empowerment between the two variables. And also, this study tested moderating role of self-efficacy between psychological empowerment and work engagement. A total of 237 employees in 7 companies in South Korea participated in this study. The SPSS 21.0 and M-Plus6 statistical programs were used in this study to analyze and statistically process the collected survey data. The result showed that collective leadership positively influence employee's work engagement and psychological empowerment works as mediator in the relationship between collective leadership and employee's work engagement. This results means that collective leadership is a crucial factor to facilitate employee's psychological empowerment toward employee's work engagement. Self-efficacy had moderating effect between psychological empowerment and work engagement. Finally, theoretical and practical implications of the study results have been discussed along with limitations and future direction of the study.

A method for the design of a disk cam with a remote follower is presented. ADAMS software is utilized for the design process. The whole process is applied for the design of a cam profile to be used in a tappet shedding device of a shuttle loom. First the desired motion of the remote follower, the hearld frame in this case, is determined to improve the characteristic of a certain weaving process. Next, the desired displacement data is input to the ADAMS software and the cam profile is obtained as an output. To test the validity of the proposed method, designed cams were actually manufactured and implemented on a experimental loom. And with the help of potentiometer type displacement transducers, the motion of the remote followers were actually recorded. And the result was sufficient to prove the validity of the presented method.

본 연구에서는 임파워링 리더십이 구성원들에게 미칠 수 있는 긍정적 영향뿐만 아니라 부정적 영향의 가능성에 주목하여, 임파워링 리더십이 구성원의 직무 스트레스에 미칠 수 있는 양면적 효과를 알아보고자 하였다. 구체적으로 임파워먼트 이론과 책임의 역할 이론을 바탕으로, 구성원의 자아효능감과 책임감이 각각 임파워링 리더십과 직무 스트레스와의 관계를 매개할 것이라고 예상하였다. 또한, 조직지원인식이 자아효능감 및 책임감과 직무 스트레스와의 관계를 조절할 것이라고 가정하였다. 마지막으로, 임파워링 리더십이 자아효능감과 책임감을 매개로 직무 스트레스에 미치는 간접효과가 조직지원인식의 수준에 따라 달라질 것이라는 조절된 매개효과를 가정하였다. 본 연구의 가설을 검증하기 위해 국내 직장인 427명을 대상으로 온라인 설문조사를 실시한 결과, 임파워링 리더십과 직무 스트레스의 관계에서 구성원이 느끼는 자아효능감과 책임감의 매개효과가 모두 유의한 것으로 나타났다. 즉, 임파워링 리더십은 자아효능감을 높여 직무스트레스를 감소시키는 반면, 책임감 증가를 매개로 직무 스트레스를 높일 수 있는 양면적 효과가 있음을 확인하였다. 또한, 책임감과 직무스트레스의 관계에서 조직지원인식의 조절효과가 유의하게 나타났으며, 구체적으로 조직지원인식이 낮을 때 책임감이 직무 스트레스에 미치는 정적 영향이 더욱 강화되었다. 이와 다르게 직무 스트레스에 대한 자아효능감과 조직지원인식의 상호작용효과는 유의하지 않은 것으로 나타났다. 즉, 자아효능감이 높은 사람은 조직지원인식 차이에 관계없이 비슷한 수준의 직무 스트레스를 경험하는 것으로 확인되었다. 추가적으로, 조직지원인식은 임파워링 리더십과 직무 스트레스의 관계에서 책임감의 매개효과를 조절하는 것으로 나타나 조절된 매개효과가 검증되었다. 이러한 연구 결과를 바탕으로 본 연구의 이론적 및 실무적 시사점, 그리고 한계점과 후속 연구에 대한 제언을 논의하였다.

In this study, we aimed to investigate the two-sided effect of empowering leadership on follower’s job stress by focusing on the potential for positive and negative effects of empowering leadership. Based on the empowerment theory and the role theory of accountability, we examined the mediating effects of self-efficacy and felt accountability and the moderated mediation effects of perceived organizational support(POS) in the relationship between empowering leadership and job stress. A total of 427 Korean employees participated in this study through an online survey. The results show that empowering leadership has indirect effects on job stress mediated by self-efficacy and felt accountability. Specifically, empowering leadership reduced job stress via increased self-efficacy, while increased job stress via increased felt accountability. Evidence was also found of the moderating role of POS: the positive relation between felt accountability and job stress was stronger for those with a low level of POS than those with a high POS. However, the moderating effect of POS was not found in the relationship between self-efficacy and job stress. In addition, the mediating effect of felt accountability was moderated by POS in the relationship between empowering leadership and follower’s job stress. Based on the results, we discuss several implications, limitations, and recommendations for future research.

본 연구는 최근 조직 인적자원 관리의 중요한 이슈로 부각되고 있는 일-삶 균형에 초점을 맞춰, 리더의 일-삶 균형이 가져오는 긍정적 효과에 주목하였다. 이를 위해 본 연구에서는 세 가지 연구 목적을 수행하였다. 첫째, 리더의 일-삶 균형이 부하의 창의성에 미치는 영향에서 리더-부하 교환관계(LMX)의 매개효과를 검증하였다. 둘째, 리더-부하 교환관계가 부하의 창의성에 미치는 영향에 있어 부하의 심리적 주인의식의 조절효과를 확인하였다. 마지막으로 리더의 일-삶 균형이 부하의 창의성에 미치는 영향에서 LMX의 매개효과와 부하의 심리적 주인의식의 조조절된 매개효과를 검증함으로써 리더의 일-삶 균형의 긍정적 효과의 매커니즘과 경계조건을 확인하고자 하였다. 일반기업체에서 근무하고 있는 156쌍의 상사와 구성원의 일대일 쌍 자료를 바탕으로 위계적 다중 회귀분석과 프로세스 매크로 분석을 실시한 결과, LMX는 리더의 일-삶 균형과 부하의 창의성 간의 관계를 완전매개 하였으며 부하의 심리적 주인의식은 LMX와 창의성 간의 관계를 유의하게 조절하며, 조절된 매개효과 가설을 지지하였다. 이 결과는 리더가 자신이 일과 삶에 균형이 있다고 인식할 때 부하와의 관계를 증가시키고, 이러한 관계가 부하의 창의성을 향상시킴을 의미한다. 특히 이것은 부하의 심리적 주인의식이 낮을 때 유의한 조절효과를 보이며, 심리적 주인의식이 낮은 경우 리더와 부하의 교환관계는 부하의 창의성에 중요한 역할을 하는 것으로 나타났다. 본 연구는 기존에 연구되지 않았던 리더의 일-삶 균형에 초점을 두고 부하의 창의성에 중요한 역할을 하는 LMX의 선행변인을 확대하여 탐색했다는데 이론적 함의를 지니며, 동시에 일-삶 균형의 효과성을 통해 인적자원관리 차원에서 방향성을 제시하였다는데 실무적 함의를 지닌다.

This study paid attention to the positive effects of leaders’ work-life balance, focusing on work-life balance, which has recently emerged as an important issue in organizational human resource management. To this end, this study have three research objectives. First, this study examined the mediating effect of leader-member exchange relationship (LMX) by investigating the effect of leader’s work-life balance on LMX and followers’ creativity. Second, this study investigated whether follower’s psychological ownership had a moderating effect on the influence of LMX on the creativity of the subordinates. Finally, this study attempted to verify the mechanism and boundary conditions of the positive effect of the leader’s work-life balance by examining the mediating effect of the LMX and the moderating effect of the follower’s psychological ownership. As a result of hierarchical multiple regression analysis and process macro analysis based on the dyadic data of 156 leaders and followers working in general companies, LMX fully mediated the relationship between leader’s work-life balance and follower creativity, and follower’s psychological ownership significantly moderated the relationship between LMX and creativity, and finally supported the moderated mediation effect hypothesis. This result means that when leaders perceive themselves as having a work-life balance, this positively affects their relationship with their subordinates and creativity, especially when their psychological ownership is low, LMX is more important to their creativity. This has theoretical implications in that it has expanded the antecedents variables of LMX, focusing on the work-life balance of leaders that has not been previously studied. At the same time, it has practical implications in terms of human resource management by showing the positive effect of the leader’s work-life balance.

In this paper the purpose is to investigate the stability and variation of natural frequency of a cracked Timoshenko cantilever beams subjected to subtangential follower force. In addition, an analysis of the stability of a cantilever beam as the crack effect and slenderness ratio is investigated. The governing differential equations of a Timoshenko beam subjected to an end tangential follower force are derived via Hamilton's principle. The two coupled governing differential equations are reduced to one fourth order ordinary differential equation in terms of the flexural displacement. By using the results of this paper, we can obtain the judgment base that the choice of beam models for the effect of slenderness ratio and crack.

In this paper, the stability of a cracked cantilever Timoshenko beam with a tip mass subjected to follower force is investigated. In addition, an analysis of the flutter instability(flutter critical follower force) and a critical natural frequency of a cracked cantilever Euler / Timoshenko beam with a tip mass subjected to a follower force is presented. The vibration analysis on such cracked beam is conducted to identify the critical follower force for flutter instability based on the variation of the first two resonant frequencies of the beam. Therefore, the effect of the crack's intensity, location and a tip mass on the flutter follower force is studied. The crack section is represented by a local flexibility matrix connecting two undamaged beam segments. The crack is assumed to be in the first mode of fracture and to be always opened during the vibrations.

본 논문은 복수 집중질량을 갖고 제어 종동력을 받는 자유 Timoshenko보의 동적 안정성에 관한 것으로, 비행중의 미사일이나 로켓의 연료탱크, Payload등의 기계장치부를 복수의 집중질량으로 간주하여 이러한 항공우주 구조물들이 추진력인 종동력을 받을때에 대한 계의 동적 안정성을 판별한다. 수학적 모델에 대한 운동방정식은 확장된 해밀톤 원리를 이용한 유한요소법에 의해 유도되며, 복수 부가질량의 위치 및 크기변화, 센서의 위치 및 게인(gain)의 변화에 따른 계의 안정성 지도(stability maps)를 보여준다. 또한 보의 전단 변형이나 회전관성의 효과 뿐만아니라, 추질력의 방향이 제어되는 경우와 제어되지 않는 경우에 대한 최대 추진력 값이 수치 시뮬레이션을 통해 예측된다.