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셀프리더십의 영향요인과 효과: 의료기관 조직구성원을 중심으로
민병철,임성원,김한결,이현실 한국보건행정학회 2013 보건행정학회지 Vol.23 No.1
The purpose of this empirical study is to investigate the factors of self-leadership depending on individual characteristics, job characteristics, and qualities of leader-member exchange. Additionally, this study aims to discover the effect of self-leadership’s outcome factors on organizational citizenship behavior and innovative activities. In order to verify research model and hypothesis, questionnaires were collected from department members working at general hospitals, hospitals, and clinics in metropolitan area of Seoul, which were 85 departments and 344 respondents. Collected data were analyzed with SPSS ver. 19.0 and Amos ver. 18.0 statistical package using Structural Equation Model. The results of the analysis showed that both individual characteristics and job characteristics have significant positive effect on self-leadership. Also, self-leadership had significant positive relationship on innovative action and organizational citizenship behavior. The implications of this study are as follow. First, this study empirically explained how self-leadership is applied in healthcare organizations. Second, it verified the relationship between causal factors and outcome factors of self-leadership. Also, prior researches of self-leadership have been conducted on business companies, but this study explored self-leadership at healthcare organizations, which increased external validity. Nowadays, many people are interested in the effect of leadership in order to overcome issues coming from enlarged organizations and to improve performance. Self-leadership will contribute to maximizing voluntary efforts of human resources and performance in a rapidly changing healthcare industry.
Quad-rotor UAV의 동역학적 모델링과 비행자세 최적화를 위한 PID 제어기 설계
민병철,조찬호,최경민,김동한 경희대학교 경희정보통신 SoC연구소 2008 경희정보통신SOC연구소 논문집 Vol.9 No.-
In this paper, we present a design of quad-rotor aircraft that is a type of unmanned air vehicle (UAV)because of their strong advantages of minimized size and their powerful capabilities for monitoring environment. The nonlinear model of 6 degrees of freedom (6 DOF) quad-rotor aircraft in air is derived on the basis of the Newton-Euler formalism. Because the derived model that comprises translational and rotational subsystems is dynamically unstable, we set on a nonlinear control strategy for the quad-rotor aircraft. The control strategy includes PID controller that is common in the nonlinear control for the translational subsystem and the rotational subsystem of the quad-rotor aircraft. The optimal coefficients of PTD controller are measured by the computer simulation and the results verify the effectiveness of the proposed control strategy for the quad -rotor aircraft. Finally we demonstrate experimentally stability of the small-scale quad-rotor aircraft by using a wireless camera on it to get distinct images of surrounding environment. The manufactured aircraft is equipped with four rotors generating various dynamics, two embedded controllers using PID controller, and a navigation system based on gyro sensors, an accelerometer sensor and an ultrasonic sensor.
비대칭 단면을 갖는 박벽 곡선보의 안정성해석 I: 해석적 방법
민병철,김문영 한국전산구조공학회 1998 전산구조공학 Vol.11 No.4
본 연구에서는 비대칭 박벽단면을 갖는 곡선보의 안정성해석을 수행할 수 있는 이론 및 엄밀해를 제시하기 위하여, 3차원 연속체로부터 유도된 평형방정식으로부터 선형화된 가상일의 원리를 적용하였다. 박벽단면의 구속된 ?(warping)과 곡률효과를 고려하고 유한한 회전각의 2차항을 포함하는 곡선보의 변위장을 도입하여 단면에 대해 적분함으로써 도심축에 대한 박벽 곡선보의 총포텐셜에너지를 유도하였다. 또한, 단순지지되고 일축대칭 단면을 갖는 박벽원형 곡선보의 면내 및 면외좌굴에 대한 엄밀해를 유도하기 위하여, 면내에 대해서는 균일압축을 받는 원형아치의 역대칭 좌굴모드에 대한 좌굴하중을 유도하고 면외좌굴에 대해서는 균일압축 및 순수휨을 받는 아치의 처짐함수를 가정하여 곡선보의 횡좌굴하중에 대한 일반해를 제시하였다.
청소년의 정보통신 윤리의식 수준과 선플활동 경험과의 관계
민병철,오경숙 사단법인 인문사회과학기술융합학회 2019 예술인문사회융합멀티미디어논문지 Vol.9 No.8
본 연구는 청소년의 정보통신 윤리교육의 방법으로 선플달기 캠페인은 물론 다양한 청소년 체험활동을 통한 교육방법을 모색하는데 그 목적을 두고 청소년들의 정보통신 윤리의식 수준은 어떠하며, 이는 성별과 선플활동 경험에 따른 청소년의 정보통신 윤리의식 수준을 분석하였다. 이를 위해 전국의 초, 중, 고등학교에 재학 중인 2231명의 청소년을 연구대상으로 하였다. 수집된 자료는 SPSS 21.0프로그램을 사용하여 t검증과 일원변량 분석을 실시하였다. 본 연구에서는 정보통신 윤리의식을 존중, 정의, 예절, 자율, 책임의 5개 요인으로 설명하였다. 연구결과, 청소년의 정보통신 윤리의식은 매우 높은 수준이었고, 여학생이 남학생보다 정보통신 윤리의식 수준이 높았다. 6개월 이상의 선플활동 경험을 한 청소년들의 정보통신 윤리의식이 높았으며, 특히 ‘정의’, ‘예절’, ‘책임’에서 선플 활동 경험이 많을수록 높은 결과를 나타냈다. 본 연구의 결과는 청소년의 정보통신 윤리의식 교육에 있어 선플활동과 같은 학생 참여 프로그램이 정보통신 윤리의식을 높여줄 수 있다는 시사점을 도출하였다. The following study investigates the level of ethical sense amongst teenagers regarding information and communications, and how differences are constructed depending on gender and experiences on commenting activities. In order to do so, 2231 students in elementary, middle, and high schools nationwide took part in the study. The gathered information was analyzed with the t-test and one way analysis of variance was conducted through the SPSS 21.0 program. The study further explained ethical senses of information and communication with 5 different factors: respect, justice, manners, autonomy, and responsibility. The analysis showed that ethical senses of communication and information amongst teenagers were high, and female students tend to have a higher level of ethical sense than male students. Students that had the experience of writing positive comments for more than 6 months tend to have higher senses, and in particular, the more experience of writing positive comments in the areas of ‘justice’, ‘manners’, and ‘responsibility’, results showed higher ethical senses. The results of the following study drew out implications that student participatory programs such as writing positive comments can increase ethical senses amongst teenagers in the education of communication and information ethical senses of students.