• 융합보안논문지
• /
• 제17권2호
• /
• pp.33-39
• /
• 2017

사물인터넷(IoT) 시대의 본격화와 더불어, 융합보안이라는 개념은 어디서나 쉽게 접하고 있다. 그러나 기존의 융합보안이라는 개념이 IoT 특성을 제대로 반영하고 있다고 보기에는 다소 어려움이 있다. 이에, 기존의 융합보안 개념을 IoT 특성을 고려하여 보완된 개념을 제시하였다. 더불어, 융합보안의 개념 모델 재정립과 기업의 융합보안전략을 수립하는 데 있어 필요한 거버넌스 체계와 기술적 요인에 대해 기술하였다.

• 전자공학회논문지A
• /
• 제33A권7호
• /
• pp.162-170
• /
• 1996

A breakdown model of gate oxides under constant current stresses is proposed. This model directly relates the oxide lifetime to the stress current density, and includes statistical nature of oxide breakdown using the concept of "effective oxide thinning". It is shown tha this model can reliably predict the TDDB characteristics for any current stress levels and oxide areas.

• 기본간호학회지
• /
• 제18권4호
• /
• pp.547-555
• /
• 2011

Purpose: The purpose of this study was to identify the relationship between professional self-concept, professional autonomy, self-esteem, and job satisfaction of clinical nurses. Method: Data were collected from a convenience sample of 289 clinical nurses who worked in one of 4 hospitals located in B City. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation coefficient, and multiple regression. Results: There were significant differences in job satisfaction according to marital status, current position, shift pattern, and average income. There was a significant positive correlation between professional self-concept and professional autonomy, self-esteem and job satisfaction. Job satisfaction showed a significant positive correlation with professional autonomy and self-esteem. The significant factors influencing job satisfaction were professional self-concept, self-esteem and professional autonomy, which explained 29.5% of the variance in job satisfaction. Conclusion: The results of this study indicate that the important role-related variables of professional self-concept, self-esteem and professional autonomy of clinical nurses are significantly related, and that as, professional self-concept is an important factor for job satisfaction of clinical nurses, strategies to increase professional self-concept need to be developed.

• 대한정형외과스포츠의학회:학술대회논문집
• /
• 대한정형외과스포츠의학회 2001년도 제11차 학술대회
• /
• pp.39-46
• /
• 2001

• 대한약리학회지
• /
• 제22권1호
• /
• pp.1-23
• /
• 1986

• 한국실내디자인학회:학술대회논문집
• /
• 한국실내디자인학회 2007년도 춘계학술대회 논문집
• /
• pp.137-142
• /
• 2007

Currently, brand apartment is positioning itself as one of the representative Korean housing. This allows to look into the planning side and cultural side of the Korean housing. The purpose of this study is to review the previous trend in apartment housing according to period, and to verify the trend of current Korean apartment housing by visiting the model houses in PanGyo, the new city. This study has chosen case study method of 11 cases which had been sorted out in different floor plan type and size. The findings of the study is as followed. In the aspect of spatial arrangement, it had been similar to the previous apartment plan but had a new attempt to break out from the old apartment structure by bring in round shaped living room. Also, due to the legalization of balcony expansion, various tries had been made to increase the level of function and to allow variety of usage. In the environmental aspect, the concept of wellbeing and health had been a great importance in apartment planning. In the digital aspect, various digital systems had been introduce for convenience and safety via home network system. Furthermore, based on the various lifestyle, the storytelling design concept applied in the interior design, which will have to effect the future model house design planning. Nonetheless, the current emphasis on universal design is expected to be treated one of the important concept in Korean apartment planning. This study has a significant meaning on readdressing current trend in Korean housing and to provide informations for future directions on Korean apartment planning.

• 한국초전도ㆍ저온공학회논문지
• /
• 제2권1호
• /
• pp.31-34
• /
• 2000

this paper deals with the initial magnetic field decay for a large scale superconducting magnet e.g. NMR/MRI magnet. The high resolution image can not be obained during the periods of the initial field decay. It is known that all superconducting materials have the property of diamagnetism. This diamagnetism is usually explained with the concept of screening current. We assumed that the existence of the screening currebt. we assumed that the existence of the screening current makes the current distribution in the superconducting wire non-uniform. And the initial magnetic field decay is caused steady current state in the view of its pattern. The initial magnetic field decay is caused by the change of the current distribution between the energizing state and persistent current mode. in this paper the theoretical analysis for the current distributions has been introduced for each state. The experiments have been carried out to verify transport currents in order to veperiments, it small at the higher transport current.

• 한국HCI학회논문지
• /
• 제3권1호
• /
• pp.9-17
• /
• 2008

사용자 경험(UX)이라는 개념이 기존 사용성 중심의 패러다임에 대한 대안으로서 학계와 업계의 지대한 관심을 받고 있다. 그러나 대다수의 경우 사용자 경험에 대한 명확한 정의를 생략하거나 협소한 유사 개념과 혼용하고 있다. 따라서 본 연구에서는 존 듀이의 실용주의 경험 철학에 기반하여 HCI에서의 사용자 경험을 개념적으로 정의하고 최적 사용자 경험의 요건을 제시하였다. 또한 HCI 환경의 변화로 사용자의 경험이 개인적 수준을 넘어 사회적으로 공유되고 있는데, 기존의 UX 개념으로는 이러한 사용자 경험을 설명하기 어렵다. 따라서 본 연구에서는 사회 심리학의 공유 인지 연구를 바탕으로, 사용자 경험을 넘어선 사용자의 공동 경험 개념을 설명하고 사용자의 공동 경험감(CX)이라는 개념의 정의와 조건을 제시하였다.

• 한국정보디스플레이학회:학술대회논문집
• /
• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
• /
• pp.1642-1645
• /
• 2007

The brightness of LED changes according to the current flowing through LEDs. The current mirror was used to drive LEDs effectively. The reference current of the current mirror was usually controlled by the resistor but the size of this resistor is very large and this resistor consumes too much power for high power LED backlight driving. The reference current of the current mirror LED driver was controlled by using flyback converter at small size with low power consumption in this paper. The concept of active current source was presented.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2001년도 하계학술대회 논문집 B
• /
• pp.1035-1037
• /
• 2001

This paper presents an improved hys- teresis current control method for three-phase PWM power inverters using 3-level comparator. Hysteresis current controller using 3-level comparator has an advantage of constant switching frequency compared with conventional hysteresis current controller. However, this method has disadvantage that the longer sampling period, the larger current error because the switching is performed without considering current error magnitude of each phase. The proposed method improves the control performance by selecting the optimum switching pattern in which the magnitudes of current errors are considered introducing space vector concept. Simulation results using Matlab/Simulink show that the proposed control method reduces current error keeping the merit of previous hysteresis current control method.