• Nuclear Engineering and Technology
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• v.56 no.3
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• pp.1108-1115
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• 2024

Assuring physical security for Micro Modular Reactors (MMRs) will be key to their licensing. Economic constraints however require changes in how the security objectives are achieved for MMRs. A promising new approach is the so-called performance based (PB) approach wherein the regulator formally sets general security objectives and leaves it to the licensee to set their own specific acceptance criteria to meet those objectives. To implement the PB approach for MMRs, one performs a consequence-based analysis (CBA) whose objective is to study hypothetical malicious attacks on the facility, assuming that intruders take control of the facility and perform any technically possible action within a limited time before an offsite security force can respond. The scenario leading to the most severe radiological consequences is selected and studied to estimate the limiting impact on public health. The CBA estimates the total amount of radionuclides that would be released to the atmosphere in this hypothetical scenario to determine the total radiation dose to which the public would be exposed. The predicted radiation exposure dose is then compared to the regulatory dose limit for the site. This paper describes application of the CBA to four different MMRs technologies.

• Journal of Families and Better Life
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• v.6 no.1
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• pp.39-50
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• 1988

The objectives of this study were (1) to find out if consumer attitude variables, that is, attitude on post-industrial age consumer value, attitude on consumerism, have significant effects on consumer role performance, (2) to find out if socio-demographic variables, that is, age, educational level, family income, social status, have significant effects on consumer role performance, (3) to examine the independent influences of variables related to each subarea consumer role performance. The data used in this study inclued 573 homemakers living in Seoul. Statistical methods were ANOVA and Multiple Regression Analysis. Major findings were as follows;1) consumer role performance and each subarea consumer role performance differed significantly according to all the variables related to consumer attitude. 2) All the socio-demographic variables had significant effects on consumer role performance. 3) Resulting from multiple regression analysis, consumer role performance and all the subarea consumer role performance had the positive liner relationships with the variables such as attitude on post-industrial age consumer value, attitude on consumerism, educational level, The most influencial variable was attitude on post-industrial age consumer value, and in turn educational level and attitude on consumerism.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.15 no.2
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• pp.329-339
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• 2002

This research presents a systematic design procedure for supplemental viscoelastic dampers required to satisfy the given performance objectives using capacity spectrum method. To obtain required damper size, the amount of supplemental damping was computed from effective damping minus equivalent damping and inherent damping of structure. In the case of viscoelastic damper, iterative procedure is required because of the inherent stiffness of the damper. To verify the design method proposed in this study, parametric studies were performed for single degree of freedom systems with design variables. The method was also applied to a 10-story steel framed structure and the earthquake responses were obtained. According to time history analysis result the controlled displacements turned out to be close to the target displacement regardless of the design parameters.

• The Journal of Korean Institute for Practical Engineering Education
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• v.5 no.1
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• pp.14-19
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• 2013

The program educational objectives(PEO) are defined as the competences and qualifications that the graduates should reach in 2~3 years after graduation. As indirect assessment this paper develops and presents a set of questions to evaluate how important the established PEOs are in the fields and how much the graduates achieves them. The survey was conducted and analyzed to evaluate the degree of importance and achievement of each PEO by using IPA(Importance-Performance Analysis) scheme.

• 한국경영정보학회:학술대회논문집
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• 2007.06a
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• pp.807-813
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• 2007

Although firms are adopting strategic performance management systems (PMS) that provide information that allows the firms to identify the strategies offering the highest potential for achieving the firms' objectives, many firms still suffer from making the implementation of PMS a success. The purpose of this paper is to identify those factors that influence the successful implementation of performance management systems. This paper performs a comprehensive literature scrutiny on the implementation factors of PMS including the Balanced Scorecard, Performance Prism, Intellectual Capital Navigation, and Activity-based Costing, as well as traditional performance management systems. The findings of this research will provide useful insights into the anatomy of the success factors for implementing performance management systems and will help management to all the different sized organizations in the different sectors and industries. This paper also provides some future directions for research.

• International conference on construction engineering and project management
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• 2009.05a
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• pp.1446-1452
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• 2009

This study is designed to examine the current status of the performance warranty systems for asphalt pavements implemented in Europe, USA, and Japan, and to review the feasibility and possibility of introducing this system into the Korean environment. For such objectives, the concept and necessity of performance warranty and the status of Korean contracting systems and overseas performance warranty systems were evaluated. In particular, the bidding systems, performance guarantee systems, and maintenance work inclusion status in the projects and warranty specifications of Europe, USA and Japan were comparatively evaluated. And methods of introducing the performance warranty system by utilizing defects liability system and design-build contracts of Korea were suggested.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.11
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• pp.469-478
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• 2017

This study analyzed faculties' perceptions on the importance and performance of effective teaching behaviors. The effective teaching behaviors scale consisted of 40 items belonging to 8 factors. A survey was conducted with 86 faculties from 2 universities. It was found that the differences between the importance and performance levels of all items except for 'applying emphasis on important contents' were statistically significant. The scores of importance were higher than those of performance. The results of the IPA showed that 'keep up the good work' area included 19 items that those were high the scores of importance and performance. The 'concentrate here' area included 5 items that need to be improved for effective teaching. The first priority items needing to be improved were 1) Establishing instructional methods and strategies suitable for the objectives, 2) establishing clear objectives, appropriate examples and systematic classes, 3) providing questions, opportunities and appropriate feedback. We suggested that a faculty development program needs to be developed for effective teaching.

• The Journal of Korean Society for School & Community Health Education
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• v.9 no.2
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• pp.81-90
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• 2008

Objectives: Since 80% of the information we get from the environment comes in through our eyes (Anshel JR, 1999), uncorrected visual problems negatively affect children's educational process and perceptual development. The objectives of this study were: 1st, to document the prevalence of learning related vision problem in primary school children. 2nd, to compare responses of children with those of parents on visual symptoms. Lastly, to determine if there is an association between visual symptoms and academic performance. Methods: We administered visual-symptom quality of life questionnaire developed by Oklahoma College of Optometry in Vision Development to 1031 primary school children and their parent. Visual symptoms responded by children and their parents were compared using Independent Sample t-test and the relation between visual symptoms and academic performance were calculated using Pearson Correlation tests. Results and Conclusions: The number of children who need further professional evaluation, that is visual-symptom scores were ${\geq}20$, reported by children(25%) was greater than that reported by parents(16%). And visual-symptom scores reported by children were significantly higher than those reported by parents in every grade(p<0.01, p<0.001). Visual symptoms reported by both children and parents were found to be inversely correlated to academic performance in every academic area and most of their correlations were statistically significant(p<0.05). Therefore, children with more visual-symptom reported by both group had negative effects on children's academic performance.

• Journal of Korean Academy of Nursing
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• v.8 no.2
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• pp.1-13
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• 1978

Evaluation for students’performance is a very important and difficult responsibility of head nurses. This study was undertaken to investigate and identify head nurses’attitudes toward evaluation for clinical performance of nursing students. Data were gathered through questionnaire from eighty eight head nurses at three hospitals in Kwang Ju City and four hospitals in Seoul, during the period of April 9th-26th, 1978. The questionnaire developed by the researcher included 19 statements which concerned the attitudes of head nurses: their perception about objectives of evaluation for the students clinical performance, their attitudes toward responsibility as evaluator, their attitudes toward method of evaluation, their understanding and interest in nursing students. Mean attitude score more than 60% were classified as positive or favorable, and less than 60% to be negative or unfavorable. The result obtained could be summerized as follows: 1. The mean score of head nurses’attitudes was positive (67.9%). Hypothesis I was rejected, 2. Head nurses’perception about objectives on performance evaluation was very favorable (85.5%). 3. Head nurses’attitudes toward evaluating method were negative (50.9%), post-evaluation interview were perceived to be a part of evaluating process (73.9%), although only few (22.7%) implemented. 4. The head nurses’attitudes in the responsibility as a evaluator were unfavorable (58.2%). 5. Relatively favorable response was revealed in understanding and interest about nursing students (79.6%). 6. Educational level, duration of clinical experience, marital status, and geographical region of head nurses were no significant influence on the attitudes toward evaluation for clinical performance (P > 0.05), while only age revealed significant difference (P < 0.05) Hypothesis 2, 3, 5 and 6 were accepted, hypothesis 4 was rejected.

• The Korean Journal of Health Service Management
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• v.11 no.1
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• pp.11-25
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• 2017

Objectives : The purpose of this study is to analyze the differences in financial performance, productivity, and patient care performance between metropolitan and non - metropolitan hospitals and examine the factors affecting profitability of both groups. Methods : The survey period consisted of three years of data that can identify the financial performance of the hospital. The survey subjects were selected from 58 metropolitan hospitals, 87 non - metropolitan hospitals and 147 hospitals. Results : There was a significant difference in stability, activity, cost index, productivity, and patient care performance between the metropolitan and non - metropolitan hospitals, and metropolitan hospitals showed a relatively higher ratio. Conclusions : In the metropolitan and non-metropolitan hospitals, the variables of productivity and cost index increase the profitability. However, if the factors with less influence on the results of the study are applied to the variables of various situations, it may have a great influence on the profitability increase.