• Journal of The Korean Association For Science Education
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• v.32 no.5
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• pp.805-822
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• 2012

The purpose of this study was to explore the patterns of group model development about blood flow in the heart and reasoning process by small group interaction. The subjects were 14, 8th graders in a Science Gifted Center. The group discussion was made possible by using triggering questions that can be answered based on experiences of hands-on activities such as a siphon pump analogy model activity and a dissection of pigs' hearts. Despite participating in same activities, the groups showed different model development patterns: unchanged, persuasive, and elaborated. Due to the critical revising, the group's explanatory model was elaborated and developed in the added and elaborated pattern. As critical revising is a core element of the developing model, it is important to promote a group interaction so that students become critical and receptive. The pedagogical analogy model and conflict situation enabled students to present elaborated reasoning. The Inquiry activity with the pedagogical analogy model promote students' spontaneous reasoning in relation to direct experience. Therefore offering a pedagogical analogy model will help students evaluate, revise and develop their models of concerned phenomena in science classroom. Conflict situation by rebuttal enable students to justify more solid and elaborate a model close to the target model. Therefore, teachers need to facilitate a group atmosphere for spontaneous conflict situation.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.05a
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• pp.422-425
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• 2009

RFID (Radio Frequency IDentificaiton)는 태그, 레이블, 카드 등에 저장된 데이터를 무선 주파수를 이용하여 리더에서 자동 인식하는 기술이다. RFID 애플리케이션은 RFID 태그의 실시간 정보를 기반으로 하는 업무 프로세스를 의미하는 것으로, RFID 정보를 이용하기 위해서는 기존의 비즈니스 프로세스가 변형되어져야 한다. RFID 미들웨어로부터 발생하는 저수준의 RFID 이벤트를 다양한 정보 서버들을 참조하여 고수준의 이벤트로 변환시키기 위한 일련의 활동(activity)들을 대부분의 RFID 애플리케이션에서 공통으로 수행하기 때문에 이러한 활동들을 재사용 될 수 있는 핵심자산으로 만들어놓을 필요가 있다. 본 논문에서는 다양한 유형의 RFID 애플리케이션에 재사용될 수 있는 RFID 관련 활동들을 RFID 제네릭 (generic) 활동으로 구분하고 이를 이용하여 2-레벨의 비즈니스 프로세스 패밀리 모델 (Business Process Family Model: BPFM)을 구축하는 방법을 제시한다. 상위 레벨의 RFID 제네릭 액티비티들은 두번에 걸쳐 가변치가 결정될 수 있는 가변점을 가지게 된다. 하위 레벨을 구성하는 도메인 활동들은 그 자체의 가변속성 뿐만 아니라 활동의 흐름에서 나타나는 다양한 형태의 가변요소들을 표현하게 된다. 이러한 2-레벨 BPFM을 이용함으로써 RFID 시스템 도입 시 처리해야 하는 활동들의 개발 양을 현저히 줄일 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.409-412
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• 2013

본 논문에서는 현재 표면처리산업에서의 피도금걸이-랙에 대한 수동적인 데이터 관리의 문제점을 해결하고자 모바일 RFID(Radio Frequency Identification) 리더기 및 스마트 모바일 디바이스를 이용한 시스템을 제안한다. 이를 위해 본 논문에서는 랙의 라이프사이클에 따른 상태전이를 분석하고, RFID 시스템을 이용한 자동인식기술을 사용하였다. 자동 인식된 랙은 현재 상태에 따라 전이를 일으키는 활동을 수행하도록 시스템을 구축하였으며, 다양한 유형의 랙을 각 상황에 맞게 식별해 내는 방법을 통해 도금라인 프로세스의 효율을 향상시킬 수 있도록 하였다.

• Journal of Digital Convergence
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• v.14 no.10
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• pp.217-224
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• 2016

The purpose of this study is verifying the effect of transformational leadership on job satisfaction and to explore the moderating roles of job autonomy. This study developed hypotheses and tested them using hierarchical regression analyses. The data analysis was done by SAS Ver 9.1 and Smart PLS Ver 3.0. The test was conducted by employees working at large, small-medium company and public enterprise. The results indicate that the positive transformational leadership and job satisfaction were statistically supported. And this study found that job autonomy moderating roles in the relationship between transformational leadership and job satisfaction. Based on the findings of the study, this study presented managerial implications and suggestions for future studies.

• Culinary science and hospitality research
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• v.22 no.4
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• pp.1-23
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• 2016

This research attempts to analyze the relationship among leadership, LMX and organizational achievements for chefs in the Jeju district. The results of the research revealed that the leadership type only affected the servant leadership of LMX. Furthermore, the job satisfaction for leadership and LMX was influenced by organizational commitment. Therefore, to strengthen the relationship of LMX, the leadership type's servant leadership must be the essential link between the relationship of LMX, and LMX serves as the link between leadership and organizational achievement. Ultimately, to augment the employer-employee relationship, the factors of servant leadership must be applied, for example, by taking good care of the workers, persuasion, attentively listening to the workers, sympathy, and suggestion of vision, as well as the mutual link and respect among the employers and employees, all of which were shown to have positive influences on the organizational achievements.

• Korean Journal of Childcare and Education
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• v.8 no.5
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• pp.111-127
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• 2012

The purpose of this study was to investigate the effects of directors' leadership and teachers' self leadership on teachers' efficacy. The participants were 217 teachers in private day care centers. LBDQ (Halpin, 1967), RSLQ (Houghton & Neck, 2002), and a teachers' efficacy questionnaire (Kim & Lee) were used. The data collected were analyzed by SPSS 18.0. The results of this study were as follows: First, teachers cognized that directors' leadership was very high. Second, directors' leadership was clustered by 4 types: human oriented, task oriented, leader and deficient type. And, teachers' efficacy was clustered by 4 types: leader, restricted, compensated and task oriented type. Third, directors' task oriented leadership, human oriented leadership, and teachers' self leadership (self punishment, self-goal setting, self observation and self esteem) affected teachers' efficacy. And directors' human oriented leadership and teachers' self leadership (self punishment and self-goal setting) affected teachers' personal efficacy.

• Journal of the Korea Convergence Society
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• v.9 no.10
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• pp.533-540
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• 2018

This study is to find convergent effects of collaborative peer tutoring on communication ability and self-leadership of nursing students. According to the results of Mann-Whitney U and Kruskal-Wallis test using SPSS/WIN 19.0 for the survey of communication and self-leadership before and after experiments, there were significant differences of personality type, discussion preference and leadership in communication, and of motive of admission, leadership and school grades in self-leadership. There were positive correlations between communication and self-leadership before and after treatments. The results of Wilcoxon signed ranked test showed cooperative peer tutoring increased communication ability and self-leadership significantly each(p=.008, p<.001). These results could be used in developing intervention programs for enhancing communication and self-leadership of nursing students after further studies with wider range of subjects and setting control group.

• Journal of Internet Computing and Services
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• v.10 no.4
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• pp.177-187
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• 2009

Typical RFID-device applications have provided users to each vendor-specific interface for supporting control and management of RF-tags and readers within their managed domain. Also, typical RFID-business applications have been implemented by using each event-data structure of RF-readers or RFID middlewares. RFID infrastructure managers, thus, are difficult to handle individual control and management specifications for managed RF-tags, devices and systems. Most RFID application services, also, are attached to providing visibility and traceability of an RF-tag item. To solve these problems, this paper proposes an RFID service management policy information model which supports to define unified control and management for heterogeneous RFID devices, middlewares and applications. This paper describes an example procedure that an RFID service management policy definition based on the proposed model is adaptively transformed and executed on a specific RFID sub-infrastructure.

• Korean Security Journal
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• no.17
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• pp.221-234
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• 2008

This research is aimed at looking into the effect of the leadership of a leader of a guard martial art on majors' exercise results. For this purpose, this research selected the present students of guard science-related department as a population as of the year 2008, and finally used the data from the 259 questionnaires collected mainly from the first-year students to the third-year students among the man & woman majors in Taekwondo at colleges across the country by using convenient sampling. To achieve research results, this research set a statistical significance level at $\alpha$=.05. A guard martial art leader's positive leadership can help Taekwondo majors improve their exercise results, so a leader is encouraged to show a leadership pattern having respect for objective, reasonable majors in tune with the paradigm of swimming with the stream of times rather than a traditional leadership pattern-lopsided communication. In addition, Taekwondo majors' potential for growth could get bigger, and visible results could also increase when a leader makes a positive effort to induce majors into making definite suggestion of their vision and growth at an all-inclusive viewpoint.

• Culinary science and hospitality research
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• v.16 no.4
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• pp.94-110
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• 2010

The purpose of this study is to how certain types of leadership of food and beverage employees in the super deluxe hotels in Seoul significantly affect self-efficacy, organizational efficacy and organizational effectiveness. The model was tested using SPSS 12.0 and AMOS 5.0 on a sample of 222 respondents with 74% of a usable response nate. The result of ANCOVA indicates idealized influence, individualized consideration and intellectual stimulation, which are the characteristics of transformational leaders, significantly and positively influence the organizational-efficacy, job satisfaction and organizational commitment Individualized consideration and intellectual stimulation significantly influence self-efficacy. Self-efficacy significantly influence. Organizational efficacy, and it also indirectly influence organizational commitment through job satisfaction. Organizational efficacy bas a significant relationship with organizational commitment through job satisfaction while it doesn't have a direct effect on organizational commitment.