• 한국태양에너지학회:학술대회논문집
• /
• 한국태양에너지학회 2008년도 추계학술발표대회 논문집
• /
• pp.161-166
• /
• 2008

The major purpose of this paper is to develop an uncertainty estimate for the calibration of thermopile instruments used to measure solar radiation parameters. We briefly describe the solar radiation parameters most often measured, instrumentation, reference standards, and calibration techniques. The bulk of the paper describes elemental sources of error and their magnitude. We then apply a standard error analysis methodology to combine these elemental error estimates into a statement of total uncertainty for the instrument calibration factor. Our results allow one to evaluate the accuracy of a radiometric measurement using thermopile instrumentation in the light of the application, such as engineering test evaluation or for validation of theoretical models.

• 품질경영학회지
• /
• 제34권2호
• /
• pp.22-32
• /
• 2006

The purpose of this research is to develop the methodology for measuring the effectiveness of the Korean National Quality Award. To test the validity of the model, confirmatory factor analysis is used. Conclusively, 79 questions in 15 sub-categories from 7 categories are developed valid in the empirical research. Seven categories are Leadership, Strategic Planning, Human-Resource Focus, Process Management, Customer & Market Focus, Information & Analysis and Results.

• 품질경영학회지
• /
• 제34권1호
• /
• pp.54-72
• /
• 2006

In recent years, the widespread application of quality management and measurement reliability has put increasing emphasis on procedures for periodic instrument calibration. By optimizing calibration intervals, unnecessary calibrations can be minimized, thereby reducing costs. Moreover, optimizing intervals will improve compliance with regulatory directives while ensuring maximal compliance with reliability targets. In this paper, we present Calibration Interval Analysis Program developed using several establishment methodologies of calibration interval for measurement quality and reliability improvement. Also, we perform calibration interval analysis for some measurement instruments and analyse its results.

• 천문학회보
• /
• 제43권1호
• /
• pp.69.1-69.1
• /
• 2018

Astronomy education and research can benefit from a high performance telescope that is easily accessible in campus. Such a facility allows hands-on education of observations, small research projects, test of new instruments, and time-domian study of astronomical phenomena. Recently, SNU reconstructed a 40-year old observatory (also known as 구천문대), and established the new SNU Astronomical Observatory (SAO) on that site. On 2018 March 27, the 1-m optical telescope was successfully installed at SAO. Since then, this telescope has been producing wonderful images. This poster will give an overview of the 1-m telescope, and its performance.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1997년도 추계학술대회 논문집 학회본부
• /
• pp.521-523
• /
• 1997

In this paper, We carried out investigation of monitoring algorithm development for electric car inspection and repair. For transmitting a data, reliable RS-422 is adopted. The LabWindows/CVI development tool of National Instruments Co. is used for the formation of monitoring screen. The experimental set-up is composed of a PC to PC system. It is applicable to electric car imspection and repair.

• 비파괴검사학회지
• /
• 제14권4호
• /
• pp.244-249
• /
• 1995

적외선을 이용한 비파괴검사 방법은 검사자가 검사체의 온도를 분석하여 검사체의 건전성을 평가할 수 있도록 개발된 방법이다. 이것이 최근에는 화력발전소 및 원자력발전소 등과 같은 다양한 산업에 적용되어 사용되고 있다. 따라서, 본 보고서는 적외선을 이용한 비파괴검사의 기초적인 원리, 적외선 측정 장비의 기본 원리 및 그것의 응용분야를 기술하였다.

• 가족자원경영과 정책
• /
• 제1권1호
• /
• pp.79-88
• /
• 1997

The purpose of this study is to identify the situation of leisure preferences, the effect of related variables on the leisure preferences, and the relationship between leisure preferences and participations of urban married women. The survey of this research was conducted by means of interviews with 606 married women in Seoul. The instruments of the survey were questionnaires including a leisure preferences scale. Data were analysed by means of the statistics of frequency, mean, standard deviation, ANOVA, and Sheffe’s multiple range test, using the SPSS program. The results were as follows: The most preferred leisure type by urban married women is family oriented activities, especially conversations with family and playing with children. The level of leisure preferences differs according to related variables. The most distinctive variable on leisure preferences is the sex role of women. The relationship between leisure preferences and participations differs according to leisure activities and types. Especially in the area of religion/ social activities and self-developing activities, preferences on leisure activities has relatively strong relationship with participations on leisure activities.

• 대한가정학회지
• /
• 제43권5호
• /
• pp.1-14
• /
• 2005

This study investigated the relation between preschoolers' individual and parents 'characteristics and preschoolers' emotional understanding and regulation. Subjects were 2004 and 5-year-old children and their parents. Interview tasks were used as research instruments used to measure preschoolers 'emotional understanding and regulation. Preschoolers' temperament and parents characteristics were measured by questionnaires based on several previous studies. The results revealed that preschooler's emotional understanding and regulation were significantlv different according to mothers' attitude style, emotional expressiveness, and attitude toward children's emotional expressiveness. The results are consistent with recent research showing that parents emotional socialization may be important for preschoolers' emotional understanding and regulation.

• 재활간호학회지
• /
• 제9권2호
• /
• pp.153-160
• /
• 2006

Purpose: This study was performed to examine present health condition on community clients and the degree of cognition on community oriental health promotion program. Method: Research design is cross-sectional descriptive study, 300 residents who live in S city were selected. The period of data collection was from October 2005 to April 2006. The research instruments used were the VAS of fatigue, headache, pain, Depression, anxiety to examine present physical and psychological health condition and questionnaire on the degree of cognition on Oriental Health Promotion Program. SPSS 10.0 was used for statistics. Results: The range of fatigue, headache, pain, depression, anxiety was 2.09-3.75. The degree of cognition on program was 2.67. As for the degree of cognition on oriental health promotion program according to general characteristics of subject, there was significant difference(F=3.79, p=.038) between below 65 years(2.88) and above 65 years(3.12). Conclusion: We are trying to develop oriental health promotion program fit to property of community, especially elderly.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1998년도 하계학술대회 논문집 B
• /
• pp.810-812
• /
• 1998

Analog I&C hardwares in most of nuclear power plants in operation are aging since they were installed 1950's or 1960's. Thus, the replacement of such systems with digital computer-based systems is currently a new trend in nuclear area. This paper will discuss such transition occurring in nuclear I&C area, Comparative study on the digital technique adopted in leading nuclear industries. Its advantage and performance evaluation will be illustrated as well.