• 한국간호교육학회지
• /
• 제21권2호
• /
• pp.215-226
• /
• 2015

Purpose: This study aimed to develop a self-assessment tool to evaluate program outcomes of nursing students in Korean nursing undergraduate education. Methods: The instrument development process consisted of literature review, focus group interviews, and item validation. A total of 117 items were analyzed through content validity testing. Data was gathered from 302 nursing students in Korea and analyzed using SPSS 21.0. Results: To construct validity, principal component analysis and Varimax rotation were used, and 12 factors, with a cumulative explanatory variance of 69.16%, were determined from 79 items. For internal consistency and reliability, Cronbach's ${\alpha}$ was .91. The half-split reliability results were .84 and .85, and the ROC curve showed an optimal cutpoint at 227. A five-point Likert scale was used for scoring. Conclusion: This instrument was found to have fair validity and reliability as a self-assessment tool for nursing student learning outcomes. Therefore, it can be used to evaluate program outcomes indirectly in nursing schools.

• International Journal of Advanced Culture Technology
• /
• 제2권2호
• /
• pp.19-24
• /
• 2014

Many people all over the world have been conducting a great deal of research to solve the problem of global warming since the great majority consider reduction of CO2 as the only solution for that. That is why the production and conservation of energy is thought to be highly crucial. while it is important to produce energy with the high efficiency, the efficient use of the energy is also important. This paper focused on the development of devices for the reducing electricity which is a primary energy source used in homes, shops, buildings, factories and so on. Also the objective of this paper is to develop the inference mechanism as the core component of the devices. Therefore, in this paper, we propose the inference algorithm for reducing the electricity consumption using SARIMA mode and present the feasibility of the procedure.

• 로봇학회논문지
• /
• 제13권3호
• /
• pp.157-163
• /
• 2018

This paper deals with the development and application of control algorithms for series elastic relief robots for rescue operations in harsh environment like disasters or battlefield. The joint controller applied in this paper has a cascade structure combining inner loop for torque control and outer loop for position control. The torque loop contains feedforward and feedback controller and disturbance observer for independent, decentralized joint control. The effect of the elastic component and motor dynamics are treated as the nonlinear disturbance and compensated with the disturbance observer of torque controller. For the collision detection, Band Designed Disturbance Observer is configured to recognize/respond to external disturbance robustly in the continuously changing environment. The controller is applied to a 7-dof series elastic manipulator to evaluate the torque tracking and collision detection/response performance.

• 한국컴퓨터정보학회논문지
• /
• 제3권1호
• /
• pp.63-80
• /
• 1998

객체 지향 소프트웨어 개발에서 재사용은 소프트웨어 품질 향상과 소프트웨어 개발자의 생산성 향상을 위하여 연구되고 있다. 그러나 설계 단계에서 부적절한 작성과 유지보수시의 잘못된 변화로 인하여 클래스를 재사용 하는데 문제점이 존재한다. 본 논문에서 제안하는 방법은 C++. 프로그램 의존도 그래프를 이용하여 클래스의 의미론적인 결합 도를 분석하고, 결합 도에 따라 클래스를 분해하여 클래스의 품질 재평가와 확장성을 지원하도록 하는 방법이다. 따라서 본 논문에서 제안하는 방안은 개발자가 객체 지향 프로그램을 개발시에 원하는 부품만을 선택하여 재사용 시스템 구축을 용이하게 하였다.

• 한국추진공학회지
• /
• 제11권1호
• /
• pp.18-26
• /
• 2007

마이크로위성의 임무능력 향상을 위한 과산화수소 단일추진제 마이크로 추력기를 개발하였다. 단일 추진제 추력기의 핵심 요소인 촉매를 모노리스 지지체에 담지/제작하였으며 특성속도 효율, 반응지연 시간 측정을 통해 추력기 성능평가를 수행하였다. 실험결과 정상상태 설계 유량에서 96.0%의 높은 특성속도 효율을 확인하였다.

• 산업공학
• /
• 제15권2호
• /
• pp.172-181
• /
• 2002

Customer satisfaction is undoubtedly one of the top strategic issues in the new decade. Today, many organizations are rushing to become more customer focused. A key component of many initiatives is the implementation of customer satisfaction software. In this paper, we provide a case study for customer satisfaction management in a city gas company. The three issues include the plan for giving premiums and the development of a happycall system and a web-based measurement system for customer satisfaction.

• 한국임상수의학회지
• /
• 제13권2호
• /
• pp.140-143
• /
• 1996

In this paper the development of an automatic body temperature measuring system which can be attached to the milking machine has been studied. Since the disease is highly related to the body temperature of the cattle, early detection of the abnormal temperature would prevent the severe problems which may occur in dairy farms. The electronic component AD590 is used as a temperature sensor for the system. The device is highly robust against the noise since the output signal is the current. So it can be applied to the long distance sensing. The resolution of the signal is $0.1{\circ}C$ and the current is 10 mV. Also the A/D converter is designed for interfacing the sensor with a computer. A temperature measuring experiment using the developed system has been done for measuring the temperature of human beings and the system was proven to be useful for measuring the body temperature of the dairy cattle properly.

• 유체기계공업학회:학술대회논문집
• /
• 유체기계공업학회 2002년도 유체기계 연구개발 발표회 논문집
• /
• pp.477-481
• /
• 2002

This paper reports on the development of micro power system component under way at Seoul National University. The need of micro power system is explained and components of micro power system are described. The developments of hydrogen-air micro combustor, micro igniter based poly-silicon heater and micro thruster are described. To manufacture 3-D micro structure the process that manufactures high aspect ratio structures has been developed and optimized. Design, fabrication, and experiment processes are introduced and technical challenges in each phase are described.

• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
• /
• pp.902-904
• /
• 2003

The main objective of this paper is to investigate the potential utility of multisensor remotely sensed data for improved coastal wetland mapping. Five data fusion models, three algebraic models (Multiplicative (MT), Brovey (BT) and Wavelet transform (WT)) and two spectral domain models (Principals component transform (PCT) and Intensity-Hue-Saturation (IHS)) were implemented and tested over the multisensor data. The fused images were then compared based on visual and statistical approaches. The results show that the wavelet transform provides greater flexibility for combining optical data sets and has good potential for preserving the spatial and spectral content of the original images . However, this model yields poor information when combining optical and microwave data. Brovey transform is more reliable for fusing optical and microwave image data and yields improved information about different wetland features of the coastal zone.

• 한국습지학회지
• /
• 제2권1호
• /
• pp.1-9
• /
• 2000

The purpose of Environmental Impact Statement (EIS) is an integral component of decisions on proposed plans, projects, and actions. Adapted from the National Environmental Policy Act(NEPA, 1969) environmental impact statement in Korea has aimed to analyse and prepare the mitigation in the process of big scale development and major industrial planning. During the past 19 years EIS has played the central role for the environmental issues in the process of economic development. Nevertheless EIS act needs some modification in the system as well as in the contents of evaluation process. EIS should be served as decision-making process by assessing environmental issues in the beginning stage of proposed actions. Other consideration was suggested to make EIS system better used for environment conservation.