• Title/Summary/Keyword: importance measure .

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Relating Consumption Values to Pre-purchase Decision Making of Apparels (소비가치와 의복구매전 의사결정과의 관계)

  • 한희정;김미숙
    • Journal of the Korean Society of Clothing and Textiles
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    • v.26 no.6
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    • pp.853-864
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    • 2002
  • The purpose of this study was to measure consumption values and to investigate the differences in the process of decision making when purchasing apparel products among groups divided by consumption values. A self-administered questionnaire was distributed to 550 subjects in their 20's and 30's from Sepember 29th to October 25th in 2001; 463 were used for the data analysis. The results of this study were as follows; Consumption values were classified into five factors: Practical/functional value, Social/conformitive value, Subjective/aesthetic value, Epistemic value and Conspicuous value. Subjects were classified into 4 groups based on consumption values: the Conspicuous, the Epistemic, the Social/conformitive and the Indifferent. There were significant differences among the four groups in selected motives in the problem recognition process. Significant differences were found among the groups in own taste & personality in the information search process. Significant difference were also found in the importance of design, color, price, coordination, fashion and self-image in the alternative evaluation process.

Probabilistic Safety Assessment of Nuclear Power Plants Using Alpha Factor Method for Common Cause Failure (알파모수 공통원인고장 평가 기법을 활용한 원자력발전소 안전성 평가)

  • Hwang, Seok-Won
    • Transactions of the Korean Society of Pressure Vessels and Piping
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    • v.10 no.1
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    • pp.51-55
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    • 2014
  • Based on the results of Probabilistic Safety Assessment(PSA) for a Nuclear Power Plant (NPP), Common Cause Failure(CCF) events have been recognized as one of the main contributors to the risk. Also, the CCF data and estimation method used in domestic PSA models have been pointed out as an issue with respect to the quality. The existing method of MGL and non-staggered testing even widely used were considered conservative in estimating the safety and had a limited capability in uncertainty analyses. Therefore, this paper presents the CCF estimation using a new generic data source and Alpha factor method. The analyses showed that Alpha factor and staggered method are effective in estimating the CCF contribution and risk insights of reference plant. This method will be a common bases for the optimization of new design for the construction plants as well as for the updating of safety assessment on the operating nuclear power plants.

A Review of Wetland Policies and Related Guidelines of Leading Nations and Korea with Emphasis on Creation of Artificial Wetlands

  • Lee, Yong-Hee;Lee, Mi-Jin
    • Ocean and Polar Research
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    • v.24 no.1
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    • pp.93-114
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    • 2002
  • Legal regimes of major countries actively involved in wetland programs including USA, Japan, Germany, Netherlands, and Denmark, show that these leading nations have developed their own legal regimes and policies for the conservation and restoration of wetlands since early 1990s. The main feature of their position is to preserve, create and restore wetlands, including tidal flats. However, this approach, so called 'mitigation' policy, is thus far, not a fully established policy but an evolving one. For Korea, there are only a few laws and policies which hint at the importance of creating coastal wetlands as a conservation measure, however, most of those systems only exist as vague provisions which lack any tangible and compulsory implementing procedures and technical guidelines. It seems that it is necessary to strengthen the legal measures for conserving coastal wetlands in Korea including specifying economic assessment methods and funding sources for the creation, restoration and rehabilitation of tidal flats to firmly establish a national wetland mitigation policy.

Site-specific Quantification and Management of Soil Compaction: A Review (토양 다짐 변이 측정 및 관리기술에 관한 연구동향)

  • Chong, B.H.;Chung, S.O.
    • Journal of Biosystems Engineering
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    • v.31 no.1 s.114
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    • pp.24-32
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    • 2006
  • Compaction is becoming a greater concern in crop production and the environment because it can have deleterious effects on growing conditions that are difficult to remediate. Because compaction can vary considerably from point to point within a field, and also from depth to depth within the soil profile, it is important to consider quantification and management of the spatial and vertical variability in soil compaction when developing an overall site-specific crop management plan. In this paper, the importance of soil compaction, techniques for quantification of its variability, and the concept of site-specific tillage are examined. Methods and systems to detect within-field variation in soil strength as a surrogate measure of soil compaction and related soil properties are also compared and discussed. Quantification of variability in soil compaction and site-specific compaction management was motivated recently, and sensors and control systems are still under development. Future study will need to address a number of issues related to understanding and applying the sensor measurements.

How Should We Measure Knowledge Transfer? : Comparison of the Knowledge source's and the Recipient's Perspectives (지식이전행위, 어떻게 측정해야 하나? -제공자와 수용자의 관점 비교)

  • Kang, Minhyung
    • Knowledge Management Research
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    • v.12 no.2
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    • pp.1-16
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    • 2011
  • This study examined the influence of the antecedents of knowledge transfer from both the knowledge source's and recipient's perspectives using a social network survey. Prior research usually focused on either perspective of the knowledge source or recipient, thus could not include both. Analyzing the responses from 335 R&D employees of the five firms, the study showed that all antecedents of knowledge transfer - reward, reciprocity, subjective norm, and perceived behavioral control - are influential on knowledge transfer from the knowledge source's perspective. However, from the knowledge recipient's perspective, perceived behavioral control was influential on the quality of knowledge transfer and subjective norm was on the number of knowledge recipients. Expected reward and reciprocity did not show significant influence. This study proved that the necessity of considering both the knowledge source's and the recipient's perspectives when measuring knowledge transfer and the importance of intrinsic motivations, such as subjective norm and perceived behavioral control.

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A Study on Flexibility Strategy, Manufacturing Methods and Performance Measurement of Korean Manufacturing Companies (한국 제조기업의 유연성전략, 생산활동기법과 성과측정에 관한 연구)

  • 윤재홍;이근호
    • Korean Management Science Review
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    • v.16 no.1
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    • pp.137-156
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    • 1999
  • Flexibility is a competitive weapon in the changing environment. In order to pursue the flexibility, Korean manufacturing companies must define the flexibility dimension clearly, build the appropriate manufacturing infrastructures and measure the right flexibility performance indicators. This paper found out as follows. First, Korean manufacturing companies' flexibility strategy groups were formed three types. They are flexibility superior group, middle flexibility group and flexibility inferior group. Second, when different types of flexibility strategy group measured their performances, the degree of importance of flexibility performance indicators were different among groups. Third, when different types of flexibility strategy group were pursued, the different manufacturing methods such as product/process design technology, analysis technology, production system management technology and non technological factors were used. Lastly, when different types of flexibility strategy group were pursued, the actual flexibility performances were different among groups.

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국.공립도서관 비교평가연구 -전국 46개 4년제 대학도서관을 중심으로-

  • 최정태
    • Journal of Korean Library and Information Science Society
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    • v.26
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    • pp.23-56
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    • 1997
  • The purpose of this study is put emphasis on the importance of the library statistics. e. g., more than ten related current library statistics were inaccurated each other, so whole of statistic figures is not to be trusted. This research is make an attempt to more accurate information about library situations. Especially, with special reference to basic library statistics in the [Bulletin of National & College University libraries](Vol. 1-14, 1983-96, published by Council on National College & University Libraries), take the 24 major factors to compare and evaluate with 46 national and public university libraries. Analyzing 24 factors including 5 subjects. These subjects are as follows: 1) Total numbers of staffs with faculty members and students enrollment 2) Whole library collection of monographs and serial and publishcations. 3) Annual university budgets and library material expenditures. 4) Library facilities and building square measure. 5) Library service situation with circulation, inter-library loan/borrow and monograph D/B build up.

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STRATEGY-ORIENTED EVALUATION OF MIS

  • Chung, Moon-Sang
    • The Journal of Information Systems
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    • v.3
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    • pp.133-145
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    • 1994
  • Performance evaluation is essential for the successful management and operation of MIS. The more MIS grows and relevant investment enlarges, the more performance evaluation grows in importance. However, MIS managers as well as top management still have difficulty in evaluating the performance of MIS. This arises from various reasons, such as the specialty of MIS, diversified influences of MIS, multidimensionality of evaluation items, and the difference between evaluation levels. In this paper, MIS is understood in a broad sense. MIS's scope is of a very wide range from each application system to system innovation view. The MIS should support the firm's objectives, and, consequently, MIS evaluation should be implemented at corporate level, not merely at application system level. The most critical problem of MIS evaluation is that a systematic frame covering various viewpoints and factors of MIS evaluation does not exist. Not a single measure covers all aspects of MIS evaluation. To help resolve this problem, this paper proposes an hierarchical approach for practical use that includes most aspects of evaluation approaches from previous studies, and, furthermore, emphasizes the evaluation of strategic aspects of MIS.

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Drowsy Driving and Traffic Accidents (졸음운전과 교통사고)

  • Lee, Sang-Haak
    • Sleep Medicine and Psychophysiology
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    • v.10 no.2
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    • pp.84-87
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    • 2003
  • Drowsy driving is a major cause of automobile crashes and can lead to more serious injuries than other causes of traffic accidents. Factors increasing the risk of drowsy driving and related crashes include sleep loss, late night driving, untreated or unrecognized sleep disorders, use of sedating medications and consumption of alcohol. Young people, especially young males, shift workers, and people with untreated sleep apnea syndrome and narcolepsy are well known as the population groups at highest risk. To prevent drowsy driving and its consequences, getting adequate and quality sleep is both easier and much more successful than any remedial measure. Other helpful behaviors include avoidance of alcoholic beverages and limiting late night driving. Taking a short nap or consuming caffeine can make a short-term difference in driving alertness. In addition, information should be actively provided to the public about the importance of sleep disorders and their consequences. To reduce injuries and death caused by drowsy driving, it is a prerequisite to increase public awareness that drowsy driving can cause serious automobile crashes and has morbidity and mortality rates as high as those of drunk driving.

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Prediction of Flow coefficient according to accuracy of opening Bellows Seal Valve (벨로우즈 실 밸브의 개폐정도에 따른 유량계수의 예측)

  • Song, Xueguan;Kang, Jung-Ho;Kim, Seung-Gyu;Park, Young-Chul
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.6 no.4
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    • pp.3-7
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    • 2007
  • The valve is used on control of flow in a ship. Flow coefficient of valve is very importance in the design of valve. In this paper, three-dimensional computer simulations by commercial code CFX were conducted to observe the valve type and to measure flow coefficient when valves with various angles and uniform incoming velocity were used in a piping system. By contrast, a group of experimental data is used to compare with the data obtained by CFX simulation to investigate the validity of numerical method.

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