• Title/Summary/Keyword: Confidence Evaluation

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The Estimation of the Coverage Probability in a Redundant System with a Control Module

  • Lim, Jae-Hak
    • Journal of Korea Society of Industrial Information Systems
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    • v.12 no.1
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    • pp.80-86
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    • 2007
  • The concept of the coverage has been played an important role in the area of reliability evaluation of a system. The widely used measures of reliability include the m time between failures, the availability and so on. In this paper, we propose an estimator of the coverage probability in a redundant system with a control unit and investigate some moments of the proposed estimator. And assuming exponential distribution of all units, we conduct a simulation study for calculating the estimates of the coverage probability and its confidence bounds. An example of evaluating the availability of an optical transportation system is illustrated.

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To Establish and Maintain an EMF International Register of Professional Engineers (WTO를 통한 EMF국제 기술사 제도 실시를 대비한 우리나라 기술사의 국제적 이동성 확보 전략(I) : EMF 국제 등록 기술사의 제정과 유지)

  • 심순보
    • Journal of the Korean Professional Engineers Association
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    • v.34 no.4
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    • pp.9-16
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    • 2001
  • This paper is to represent the cross-border mobility of experienced Professional Engineers by establishing and maintaining an EMF International Register of Professional Engineers which is based on confidence in the integrity of national assessment system and a system of mutual recognition secured through continuing mutual inspection and evaluation of these systems. This paper would cover develop, monitor, maintain and promote mutually acceptable standards and criteria for facilitating the cross-border mobility of experienced Professional Engineers based on. Engineers Mobility Forum Agreement Sifted 25 June 2001, Thornybush. South Africa

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Evaluation on the Effectiveness of Graduation Exhibition -A Survey of the Working Designers- (의상관련 학과의 졸업작품전 평가에 관한 연구 -취업 디자이너들을 중심으로-)

  • 이영숙
    • Journal of the Korean Home Economics Association
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    • v.33 no.2
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    • pp.181-186
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    • 1995
  • This study is to analyse whether the senior students' experience of graduation exhibitions would be of any practical use when they are employed by fashion industry. To address this theme, a survey is carried out for 73 fashion designers who participated into the exhibitions. Survey results show the graduation exhibitions are worth Not because skills learned from the experiences are applicable to the industrial practice, but because they provide them self-confidence of finishing four year programs successfully. They responded that graduation exhibitions are most effecive when they requires to utilize knowledges and skills acquired from all across the major subjects.

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Lifetime Evaluation of Insulating Spacer used in Gas Insulated Switchgear (가스절연개폐장치용 절연스페이서의 수명평가)

  • Kim, M.K.;Lee, J.G.;Kim, I.S.;Jeong, J.Y.;Oh, C.S.
    • Proceedings of the KIEE Conference
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    • 2006.10a
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    • pp.190-191
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    • 2006
  • In this paper, a method to assess the reliability of an insulating spacer used in gas insulated switchgear by electrical accelerated lifetime test is represented. And a test plan to assure the expected lifetime with 90 % confidence level is also included.

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An experimental study on the impact of an agreement on the means to achieve nursing goals in the early postpartum period of primiparous mothers and enhance their self-confidence and satisfaction in maternal role performance (산욕초기 초산모의 간호목표달성방번 합의가 어머니 역할수행에 대한 자신감 및 만족도에 미치는 영향에 관한 실험적 연구)

  • 이영은
    • Journal of Korean Academy of Nursing
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    • v.22 no.1
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    • pp.81-115
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    • 1992
  • The problem addressed by this study was to determine the effect of nurse - patient agreement on the means to achieve nursing goals in the early postpartum period of primiparous mothers. It was hypothesized that the experimental treatment would result in hegher self-confidence and satisfaction in maternal role performance. This purpose was to contribute to the planning of nursing care to enhance self- confidence and satisfaction in maternal role performance and to the development of relevant nursing theory. Especially, the early postpartum period is crucial toward in recovery from childbirth and attainment of the maternal role. Maternal role attaintment is a complex social and cognitive process of stimulus -response accomplished by learning. Most women attain the maternal role sucessfully. But, some primiparous mothers experience difficultites in attainment of the maternal role due to lack of experience and knowledge. Self-confidence and satisfaction in maternal role performance are important factors in attainment and adjustment to the maternal role (Mercer, 1981a, 1981b ; Lederman, Weigarten, and Lederman, 1981 :Bobak and Jensen, 1985). Nursing is defined as behaviors of nurses add patients that attain nursing goals through action, reaction, interaction, and transaction. For attainment of nursing goals, active participating transactions must occur by agreement on the means to achieve those goals through nurse -patient mutual goal setting and establishment of their active relationships(King, 1981, Ha, 1977). Based on King's theory of goal attainment (1981), this stuy was planned as a non-equivalent control group, non -synchronized quasi -experimental design using agreement on the means to achieve nursing goals in early postpartum as the experimental treatment. The data were collected from July 20 to Sep. 1, 1991 by questionnaires with 60 primiparous mothers planing to breast feed after normal deliveries at W hospital in Pusan, Korea. The subjects were divided into a control group(conventional group) -those admitted from July 20 to Aug. 12, and an experimental group(agreement group) - those admitted from Aug. 13 to Sep. 1. The instument for agreement on the means to nursing goals in the early postpartum period included five steps - identification of disturbances of problems through action, reaction, and interaction with primiparous mothers : mutual early postpartal nursing goal setting : exploration of the means to achieve goals ; agreement on the means (self- care, ealry maternal -infant contact, performance of mothering behavior, and communicating about the infant's behavior and health condition) : implementation of the means. This instrument was developed on the basis of King's elements that lead to transactions in nurse-patient interactions. Lederman et al's (1981) scale for Confidence in ability to cope with tasks of motherhood and Lederman et al's(1981) scale for Mother's satisfaction with motherhood and infant care were used to measure self-confidence and satisfaction in maternal role performance ·with the subjects immediately after admission and on the day of discharge. Self-care performance in the experimental group was measured by self -evaluation tool developed by the investigator from the literature concerned. The tools to measure Pelf-confidence and satisfaction in maternal role performance, and the tool to measure self-evaluation of self-care performance were tested for internal reliability. Cronbach's Alphas were 0.94, 0.94, and 0.63. The data were analysed by using in S.P.S.S. computerized program and included percentage, x²-test, t-test, ANOVA, and Pearson Correlation Coefficient. The conclusions obtained from this study are summerized as follows : 1. The degree of self-confidence in maternal role performance of the total subjects group measured before the experimental treatment was above average with a mean score of 2.77(range 2.14-3.64). Out of 14 items, those with relatively high mean scores were ‘I would like to be a better mother than I am’(3.95), and ‘I have my doubts about whether I am a good mother’(2.87). Those with low mean scores were ‘I know that my baby wants most of the times’(2.28), ‘When the baby cries, I can tell what she /he wants’(2.37), and ‘I have confidence in my ability to care for the baby’(2;50). That is, the self - confidence of Primiparous mothers was considerably high in mothering, but rather low in activities concerning the infant care and understanding of the infant behavior. The degree of satisfaction in maternal role performance of the total subjects group measured before the experimental treatment was high with a mean score of 3.18(range 1.92-3.92). Out of 13 items, those with relatively high mean scores were ‘I am glad 1 had this baby now’(3.75), ‘I play with the baby between feedings when s/he is awake and quiet’(3.67), and ‘I enjoy being a mother’(3.27). Those with low mean scores were ‘I am upset about having too many responsibilities as a mother’(2.78), ‘It bothers me to get up for the baby at night’(2.82), and ‘I get annoyed if the baby frequently interrupts my activities’.(2.82), That is, the satisfaction of primiparous mothers was considerably high in mothering and infant care, but rather low in restraints in time or on the mother's self accomplishment and development. 2. Agreement on the means to achieve nursing goals in the early postpartum period included process of mutual goal setting, exploration of the means to achieve goals, and ahreement in concert means to achieve goals based on the mothers' condition, concerns, self-perception of the nurse - patient interactions. In the process of agreement, there was agreement that the means to achieve goals should be through trust and establishment of active relationships with the nurse through identification of problems according to planned nursing goals and active interaction, such as explanations, teaching, changing of opinions, acceptance or rejection of explanations, and proposing of questions. Therefore agreement on the means to achieve nursing goals in the early postpartum period appears to be an effective nursing intervention for primiparous mothers. 3. The degree of self- confidence in maternal role performance of the exprimental group was higher than that of the control group(t=3.95, p<0.01). Out of 14 items, those with higher score in the experimental group were ‘I would like to be a better mother than I am’(t=1.93, p<0.05), ‘I know that my baby wants most of the times’(t=2.75, p<0.01), ‘When the baby cries, 1 can tell what she/he wants’(t=2.10, p<0.05), ‘I have confidence in my ability to care for the baby’(t=3.72, p<0.01), ‘I trust my own judement in deciding how to care for the baby’(t=1.96, p<0.05), ‘I feel that I know my baby and what to do for him /her’(t=2.44, p<0.01), ‘I am concerned about being able to meet the baby's needs’(t=2.87, p<0.01), ‘I know what my baby likes and dislikes’(t=3.26, p<0.01), ‘I don't know to care for the baby as well as I should’(t=2.07, p<0.05), and ‘I am unsure about whether I give enough attention to the baby’(t=3.04, p<0.01), That is, the degree of self-confidence in mothering, activities concerning infant care, and understanding of infant behavior of the experimental group was higher than that of the control group. Therefore, the first hypothesis, that the degree of self-confidence in maternal role performance of the experimental group would be higher than that of the control group, was supported(t=3.95, p<0.01). 4. The degree of satisfaction in the maternal role performance of the exprimental group was higer than that or the control group(t=2.31, p<0.05). Out of 13 items, those with higher score in the experimental group were ‘I am glad I had this baby now’(t=2.29, p<0.05), ‘I enjoy taking care of the baby’(t=2.4g, p<0.01), ‘It is boring for me to care for the baby and do the same thing over and over’(t=2.87, P<0.01), ‘I am unhappy with the amount of time I have for activities other than childcare’(t=2.51, p<0.01), and ‘When bathing and diapering the baby, I would like to be doing something else’(t=2.43, p<0.01). That is, the degree of satisfaction in mothering, infant care, and restraints in time of on the mother's self accomplishment and development in the experimental group was higher than that of the control group. Therefore, the second hypothesis, that the degree of satisfaction in maternal role performance of the experimental group would be higher than that of the control group, was supported(t=2.31, p<0.05). 5. The third hypothesis, that the higher the degree of satisfaction in materenal role performance, the higher the degree of self-confidence in materenal role performance in the experimental group, was supported (r=0.57, p<0.01)

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The Study on Earlier Evaluation of Concrete Strength Using Ultra Sonic Velosity Method (초음파 시험에 의한 콘크리트의 조기 강도 판정에 관한 연구)

  • 김화중;이도헌;윤상천;박정민;최신호
    • Proceedings of the Korea Concrete Institute Conference
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    • 1995.04a
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    • pp.136-141
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    • 1995
  • The early evaluation on strength of concrete is useful to achieve on quality control and improvement of properties of concrete. Especially, we could say that the confidence of construction is increased by the increase durability and safety building, due to early evaluation. In this study, was proposed to ultra-sonic pulse method as a early evaluation method for strength of concrete with main parameter, sush as W/C ratio and S/A ratio. The experiment results are summarized to follow as : $\circled1$ The ultra-sonic pulse was decreased as the increase of W/C ratio. $\circled2$ The maximum value for the ultra-sonic pulse velocity and compressive strength was presented in the case of 40% S/A ratio and these value was decreased as the change of S/A ratio over 40% $\circled1$ The relationship of the ultra-sonic pulse velocity and compressive strength on 28days according to the change of W/C and S/A ratio is to be: $F_{28} = -209193R^2 + 384417R - 1763441$(W/C Ratio) $F_{28} = 1726R^2 - 774R - 502 (S/A Ratio)

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Integration of Multiple Segmentation Methods based on Evaluation Functions for Segmentation of Visible Human Color Images (평가함수에 의해 혼합된 다수의 분할 방법을 적용한 Visible Human컬러 영상의 분할)

  • 김한영;김동성;강흥식
    • Journal of KIISE:Software and Applications
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    • v.30 no.3_4
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    • pp.308-315
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    • 2003
  • This paper proposes an approach integrating multiple segmentation methods in a systematic way, which can improve overall accuracy without deteriorating accuracy of highly confident segments of boundaries generated by constituent methods. A segmentation method produces boundary segments, which are then evaluated with an evaluation function considering pros/cons of the current and next methods to apply. Boundary segments with low confidence are replaced by a next method while the other segments are kept. These steps are repeated until all segmentation methods are applied. The proposed approach is implemented for the segmentation of muscles in the Visible Human color images. A Balloon method, a minimum cost path finding method, and a Seeded Region Growing method are integrated. The final segmentation results showed improvements in both overall evaluation and segment-based evaluation.

School-based Obesity Prevention and Management Programs as Perceived and Experienced by Elementary School Health Teachers (초등보건교사의 학교기반 아동비만 예방관리사업에 대한 인식과 경험)

  • Choo, Jina;Yang, Hwa-Mi;Kim, Hye-Jin;Oh, Sang Woo;Kim, Suyeon;Jeong, Miyoung;Park, Mi Hyun
    • Journal of the Korean Society of School Health
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    • v.26 no.3
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    • pp.158-168
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    • 2013
  • Purpose: Elementary schools are regarded as the best community setting for implementing obesity prevention programs and health teachers (HTs) are the main health professionals who can provide obesity prevention services. However, there is insufficient information on the actual conditions of school-based obesity prevention/ management programs in Korean elementary schools. The purpose of the study was to investigate the actual conditions of school-based obesity prevention/management programs, perceived and experienced by elementary school HTs, which may provide basic data for developing effective and sustainable programs for early childhood. We investigated (1) HTs' ratings on the program's importance, the confidence in the program's implementation, and the factors associated with the program's success (2), the correlates of the importance and confidence levels (3), the program's effectiveness and the factors associated with its sustainability, which were evaluated by HTs, and (4) the correlates of the effectiveness levels. Methods: The participants, 147 HTs working for elementary schools in Seoul were asked to fill out self-administrated questionnaires through mail. Results: The participants' rate on the program's importance was 7.1 on average (0~10 scale) and that on the confidence in the program's implementation was 6.2 (0~10 scale). Moreover, > 25% of the participants reported student and parent participation as a factor associated with the program's success. Of the total participants, 45.6% reported they had actually experienced the program, giving 4.8 points (0~10 scale), on average, in the evaluation of the program's effectiveness and > 22.0% of the participants regarded student and parent participation as a factor associated with the program's sustainability. The HTs' confidence in the program's implementation was a strong correlate of the effectiveness evaluated by HTs. Conclusion: School-based obesity prevention/management programs tend to be highly prioritized by HTs in elementary schools. To implement an effective obesity program in elementary schools, educational support for HTs is needed in order to enhance their confidence levels on the program's implementation.

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Evaluation of Probability Rainfalls Estimated from Non-Stationary Rainfall Frequency Analysis (비정상성 강우빈도해석법에 의한 확률강우량의 평가)

  • Lee, Chang-Hwan;Ahn, Jae-Hyun;Kim, Tae-Woong
    • Journal of Korea Water Resources Association
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    • v.43 no.2
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    • pp.187-199
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    • 2010
  • This study evaluated applicability and confidence of probability rainfalls estimated by the non-stationary rainfall frequency analysis which was recently developed. Using rainfall data at 4 sites which have an obvious increasing trend in observations, we estimated 3 type probability rainfalls; probability rainfalls from stationary rainfall frequency analysis using data from 1973-1997, probability rainfalls from stationary rainfall frequency analysis using data from 1973-2006, probability rainfalls from non-stationary rainfall frequency analysis assuming that the current year is 1997 and the target year is 2006. Based on the comparison of residuals from 3 probability rainfalls, the non-stationary rainfall frequency analysis provided more effective and well-directed estimates of probability rainfalls in the target year. Using Bootstrap resampling, this study also evaluated the parameter estimation methods for the non-stationary rainfall frequency analysis based on confidence intervals. The confidence interval length estimated by the maximum likelihood estimation (MLE) is narrower than the probability weighted moments (PWM). The results indicated that MLE provides more proper confidence than PWM for non-stationary probability rainfalls.

Effects of Convergence-based Integrated simulation Practice program on the Clinical decision making, Problem solving process, Clinical competence and Confidence of core fundamental nursing skill performance for Nursing Students (융복합 기반 통합시뮬레이션실습 교육이 간호대학생의 임상의사결정능력, 문제해결과정, 임상수행능력, 핵심기본간호술 수행 자신감에 미치는 효과)

  • Moon, Mi-Young
    • Journal of Digital Convergence
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    • v.15 no.7
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    • pp.271-284
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    • 2017
  • This study was performed to examine that convergence-based integrated simulation practice program curriculum effects the clinical decision making, problem solving competence, clinical competence and confidence of core fundamental nursing skill performance for nursing students. After the convergence-based integrated simulation practice program, there were significant increased in problem solving process(t=-3.052, p<.01), clinical competence(t=-4.279, p=.000), and confidence of core fundamental nursing skill performance(t=-2.416, p<.05). The finding of this study verified that the integrated simulation practice program curriculum can be used for improvements of problem solving competence, clinical competence and confidence of core fundamental nursing skill performance for nursing students. It is necessary to develop a scientific analytical evaluation tool and program, and it would be necessary to have a system for scientifically analyzing the integration of simulation practical courses by nursing college students by grade level and subjects.