• Journal of the Korea Safety Management & Science
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• v.14 no.3
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• pp.259-268
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• 2012

조직에는 조직의 목적을 효율적으로 달성할 수 있도록 조직구성원들을 움직이게 하는 리더가 존재하게 된다. 조직 내에 달성해야 할 비전과 목표가 있고 그것을 수행해야 할 과업에 있어서 가장 필요한 것은 구성원들의 비전과 목표를 달성하기 위한 리더십이 중요한 요인이다. 리더십은 비전과 목표달성을 위해 다른 사람들의 행동에 영향을 미치는 과정이기 때문이다. 따라서 모든 유형의 집단이나 조직, 그리고 지역사회나 국가에는 효과적인 리더십이 필요하고 그 같은 효과적인 리더십을 발휘할 유능한 리더가 요구된다. 따라서 리더십은 모든 집단이나 조직의 중요한 자산이며 성공요인이 아닐 수 없다. 특히 중소기업의 경우 기업경영전반에 걸쳐 경영자의 기호나 의도에 따라 수시로 변하는 경우가 많고, 최고 경영자의 개인적 속성이 조직구조나 전략에 적지 않은 영향을 미치기 때문에 최고경영자의 리더십이 중소기업의 조직문화 형성에 대기업보다 훨씬 많은 영향을 미치고 있다. 변혁적 리더십은 사장이 카리스마, 지적자극, 개별적 배려 등을 통해 종업원들에게 기대를 능가하는 최고의 노력을 발휘하도록 동기부여 시키는 것이다. 변혁적 리더십을 발휘하는 사장은 종업원들의 욕구수준을 높여 주고 자신감을 심어줌으로써 성공에 대한 확신을 높여준다면 종업원들로 하여금 조직에 대한 몰입을 이끌어 낼 수 있고, 보통이상의 추가노력과 낮은 이직의도를 거둘 수 있다는 것이다. 따라서 본 연구는 연구의 목적을 달성하기 위해 연구와 관련된 선행연구자들을 분석하고, 이를 토대로 연구모형을 설계하여 중소제조업체의 CEO들에게 요구하는 리더십모형을 제시하였다. 중소기업의 리더십 유형을 카리스마적, 전략적, 거래적, 변혁적 이론 등을 기본으로 하여 기업에 어떠한 영향을 주는지를 이론을 통해 제시하였다. 이러한 리더십 유형들이 기업의 목표에 영향을 주는지를 분석한 후 여기에서 중소기업의 CEO에게 필요로 하는 리더십 유형을 제시하였다.

• Journal of KIISE
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• v.42 no.2
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• pp.155-161
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• 2015

It is difficult and cumbersome to figure out whether a multithread program runs with concurrency bugs, such as data races and atomicity violations, because there are many possible executions of the program and a lot of the defects are hard to reproduce. Hence, monitoring techniques for collecting and analyzing the information from program execution, such as thread executions, memory accesses, and synchronization information, are important to locate data races for debugging multithread programs. This paper presents an efficient and practical monitoring tool, called VcTrace, that analyzes the partial ordering of concurrent threads and events during an execution of the program based on the vector clock system. Empirical results on C/C++ benchmarks using Pthreads show that VcTrace is a sound and practical tool for on-the-fly data race detection as well as for analyzing multithread programs.

• KIISE Transactions on Computing Practices
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• v.21 no.3
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• pp.173-182
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• 2015

Motion control systems are widely deployed in various industrial automation processes. The motion controller, which is a key element of motion control systems, has stringent real-time constraints. The controller must provide a short and deterministic control message transmission cycle, and minimize the actuation deviation among motor drives. To meet these requirements, hardware-based proprietary controllers have been prevalent. However, since it is becoming difficult for such an approach to meet increasing needs of system interoperability and scalability, nowadays, software-based universal motion controllers are regarded as their substitutes. Recently, embedded motion controller solutions are gaining attention due to low cost and relatively high performance. In this paper, we designed and implemented an embedded motion controller on an ARM-based evaluation board by using Xenomai real-time kernel and other open source software components. We also measured and analyzed the performance of our embedded controller under a realistic test-bed environment. The experimental results show that our embedded motion controller can provide relatively deterministic performance with synchronized control of three motor axis at 2 ms control cycle.

• Korean journal of food and cookery science
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• v.21 no.3 s.87
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• pp.371-379
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• 2005

This article studied the motivational factor of participation skill competition and their effectiveness. This study was restricted to cooks within those who had participated in a cooking contest to allow measurement of participation and satisfaction. This thesis investigated 116 cooks by questionnaires from April 6, 2005 to April 23, 2005, of which 106 responses were used for statistical processing to perform this study First, from the motive of participation, 13 variables were analyzed into 3 factors such as the factor of social recognition, the factor of speciality, and the factor of self-development and self-realization. The factor as a motive of participating in skill competition has a significant effect on effectiveness. A total of three factors were extracted from Recognition consisting of 10 variables. Each factor was labeled as awareness of the competition, revision of test questions, and selection of the judges of the competition. Second, three factors were derived from 12 variables in association with the effect of the contest, including factors of contribution to industry development, technical and technological effect, and psychological effect. In addition, it was revealed that the motive of participating in skill competition had an significant impact on recognition. Third, the results of regression analysis demonstrated that factors relating to recognition of skill competition and participation motives significantly influence on the effect of the contest. One limitation of this study is that the Population of the survey was limited to those who had Participated in the contest. Thus, the findings of this study may not be generalizable for other cases. It is clear that further research is needed to collect more in-dept data from other similar competitions in an effort to extend the application of the present results to other studies.

• Journal of KIISE:Computer Systems and Theory
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• v.28 no.12
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• pp.642-652
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• 2001

Recently, the advent of World-Wide-Web(WWW) and the explosive popularity of the Internet gave birth to collaborative applications which were enabled by computers and networks as their primary media. The progress of 3D computer graphics enabled collaborative application with 3D virtual environments or distributed virtual environments. In this paper, we explain our implementation of the Share collaboration engine which is for collaboration applications based on a distributed virtual environment. We introduce Virtual Architectural Engineering 2000 (VAE2000) that is our pilot application implemented with the Share collaboration engine. The Share collaboration engine proposes a new Share network architecture for management of participants, and it provides some synchronization methods for 3D objects in virtual collaboration. VAE2000 is an experimental application that tries to prevent wastes of human, material and time resources in networked virtual collaboration.

• Journal of the Korean Society of Food Science and Nutrition
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• v.15 no.1
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• pp.9-14
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• 1986

Fuji and Jonathan apples were stored at cold room and at CA storage conditions of $3%O_2-2%CO_2$ for Jonathan and $4%O_2-3%CO_2$ for Fuji for 8 months, and then tranferred to air at $20^{\circ}C$, 70%RH to compare the some factors related to texture of the apples stored at different storage conditions during exposure at $20^{\circ}C$. Total pectin content and firmness of the apples reduced, considerably with concomitant increases of water-soluble pectin content and polygalacturonase activity during exposure at $20^{\circ}C$ after storage. And the changes were much more serious in the first 5 days than any other period and in the apples stored at cold room, especially in Jonathan than the apples stored at CA storage conditions. From the sensory test the apples stored at cold room maintained acceptable quality for 5days after removal from storage condition. The acceptability from the test was lenghtened for more than 5 days in Jonathan and more than 10 days for Fuji stored at CA storage conditions. when compared with those of the apples stored at cold room.

• Journal of Korean Medicine Rehabilitation
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• v.18 no.3
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• pp.99-118
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• 2008

Objectives : This study aimed to understand the satisfaction degree of patients due to traffic accident(TA) in order to provide basic data which would give help not only to improve the quality of services, but also to strengthen the competitiveness of oriental medical hospitals on sequela of TA patients. Methods : The data were collected from inpatients and outpatients who answered a self-report questionnaire. Independent t-test, analysis of variance(ANOVA), $X^2$-test, correlation analysis were used for data analysis. Results : According to the research on medical satisfaction degree, the overall satisfaction degree was 4.141. On each field, satisfaction degree related to the doctor service recorded the highest degree among others(4.474). Satisfaction degree related to the appropriateness of service was the second(4.091). On the other hand, satisfaction degree of using procedure was the lowest degree(3.857). On the difference of degrees of satisfaction by general characteristics, patients who were unemployed houseworker group showed lower doctor service satisfaction degree than that of other groups. However, on the difference of degrees of satisfaction related to other general characteristics, there were no significant differences(p<0.05). Conclusions : The service distribution of oriental medical hospital was almost equal without concentrating on specified social classes.

• Journal of Korean Society of Forest Science
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• v.96 no.4
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• pp.377-386
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• 2007

This study testes an application possibility of the Elaboration Likelihood Model broadly used in communication science into forest science and examines the communication effects according to the media types. To examine the effectiveness of this model, the study sets involvement, the need for cognition, and the need for effect as motivation variable and prior knowledge as an ability variable. Most variables appear to be significant in the regression analysis and results of the study verify the possibility of the application of the Elaboration Likelihood Model in forest science. To measure the media effects, a simulation is also carried out using three media including television, newspaper, and the Internet. According to ANOVA analysis, television is more persuasive than newspaper, and there is no difference between television and the Internet in terms of persuasiveness. Regarding recall, television and the Internet are more effective than newspaper. Finally, the present study suggests effective and efficient forest communication policies based on the results.

• Journal of The Korean Association of Information Education
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• v.22 no.1
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• pp.103-111
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• 2018

In order to examine the educational effects and future directions of unplugged activities, we conducted a systematic review of Korean journals and theses from 2007 to 2016. Three kinds of database were used for systematic review: RISS, KISS, and E-article, and were performed searches using options such as 'unplugged' and 'play-centered'. Based on the protocol selected in the framework of the systematic review, 37 articles were selected analyzed in terms of research status, research subjects, research methods, research hubs, study mechanisms, educational methods, and research effects. Unplugged activities were the most popular among elementary school students. Educational effects were found to have significant effects on academic achievement, problem solving ability, and logical thinking ability. In the affirmative domain, there was a significant effect on interest, curiosity, and motivation. Based on the results of the analysis, the characteristics and implications of Unplugged activities and present the direction of future education were discussed.

• Journal of The Korean Association of Information Education
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• v.22 no.3
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• pp.397-407
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• 2018

Augmented reality offers a great potential in teaching and learning through enhancing situated cognition and building indirect experience. However, existing systematic reviews are limited to studies conducted outside of Korea and fail to reflect the Korean trends. This study attempts to understand the augmented reality trends of educational research in Korea through a systematic review. The content types are also reviewed regarding situated learning. The results show that Korean studies tend to target preK-12 while many global research focus on K-16. In addition to Humanities & Arts and Science, Korean studies explored in special education. Concerning educational effects, numerous Korean studies investigated on individual learning and less focused on collaborative or situated learning. Moreover, many Korean studies used object-controlling contents. Lastly, challenges and suggestions for future research are addressed.