• Title/Summary/Keyword: development factor

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Numerical Simulation of Fatigue Growth of Multiple Surface Crack under Fatigue Load (피로 하중하에서의 복수표면크랙진전에 관한 수치시뮬레이션)

  • 한문식
    • Transactions of the Korean Society of Automotive Engineers
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    • v.10 no.6
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    • pp.133-141
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    • 2002
  • This paper describes a versatile finite element technique which has been used to investigate wide range of structural defects of practical importance. The procedure automatically remeshes the three-dimensional finite element model during the stages of crack growth. Problems include the surface cracks in leak-before-break situations, the shape development of multiple surface defects.

A Study on the Control System Design through Systems Engineering Approach (체계공학 접근방법을 통한 제어시스템 설계에 관한 연구)

  • 안장근
    • Journal of the Korea Institute of Military Science and Technology
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    • v.7 no.1
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    • pp.13-23
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    • 2004
  • There are several kinds of error factors in control system design. All error factors must be analysed before designing the control system. Therefore, each error factor must be compensated and eliminated completely. Systems Engineering can solve these error factors. In this paper, systems engineering approach on control system design are studied under model based systems engineering with RDD-100, Matlab-Simulink. Systems Engineering shall be used in defense development from control system design to system development.

Key Factors Affecting Sustainable Tourism in the Region of South Central Coast of Vietnam

  • NGUYEN, Cong De;NGO, Thang Loi;DO, Ngoc My;NGUYEN, Ngoc Tien
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.12
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    • pp.977-993
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    • 2020
  • Sustainable tourism is the development of tourism activities to meet the current needs of tourists and indigenous peoples while paying attention to the conservation and improvement of resources for the development of tourism activities in the future (World Tourism Organization, 2013). With the aim of identifying factors affecting the development of sustainable tourism in the South Central Coast of Vietnam, the study conducted a typical survey of 160 tourism managers and 240 tourists traveling or have participated in tourism activities of 8 provinces in the South Central Coast of Vietnam, and used the exploratory factor analysis (EFA) analysis and regression analysis for analyzing the data. The research results show that 11 factors impact the development of sustainable tourism in the South Central Coast namely Institutions and policies for tourism development, Infrastructure, Tourism resources, Human resources for tourism, Diversity of tourism services, Relevant support services, Activities of association and cooperation for tourism development, Tourism promotion and encouragement, Tourists' satisfaction, Local community, and Other factors. At the same time, among the above factors, the factors Institutions and policies for tourism development, Infrastructure, Tourism resources, and Local community strongly impact the development of sustainable tourism in the region.

The Effect of Maternal Parenting Style and Sensitivity on Infant Development (어머니의 양육유형 및 민감성이 영아의 발달에 미치는 영향)

  • Lee, Hyung-Min;Park, Sung-Yun;Seo, So-Jung
    • Journal of the Korean Home Economics Association
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    • v.46 no.2
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    • pp.97-111
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    • 2008
  • A total of 31 mothers of 5-month-old infants(18 boys and 13 girls) were observed and interviewed at home via a questionnaire format. Results revealed that perceived maternal parenting style had an effect on general infant general development. As mother exhibited more didactic and limit setting behaviors, the infants showed more receptive, expressive, and language development characteristics. Furthermore, the effects of maternal sensitivity on infant general development and language skills were also ascertained. The infants who showed more positive general development had mothers who interacted sensitively with them. Maternal sensitivity was the only factor that had a major effect on infant general development. The overall findings of this study indicate that perceived maternal parenting style and observed maternal sensitivity were found to have positive effects on general infant general development and language skills.

TRL Impact on Development Schedule and Cost in the Aerospace Project (항공우주개발 프로젝트에서 개발기간과 비용에 대한 TRL의 영향 분석)

  • Hwang, Hyung-Won;Kim, Hong-Rae;Chang, Young-Keun
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.40 no.3
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    • pp.264-272
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    • 2012
  • TRL has a direct impact on development schedule and cost in the system or technology development projects. If TRL capability of development organization for specified CTEs can be accurately assessed and the impact of TRL on development schedule and cost are analyzed as detailed as possible, the risk of development schedule delay and cost increase can be minimized during the development process. This paper describes analysis results of TRL impact on development schedule and cost in the aerospace project. The development schedule and cost change are quantitatively estimated for the TRL improvement in the Unmanned Aerial Vehicle(UAV) system development program.

A study of the growth and development of the low birth weight infant (저체중아의 성장 발달에 관한 연구)

  • 변영순;이자형
    • Journal of Korean Academy of Nursing
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    • v.13 no.3
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    • pp.51-60
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    • 1983
  • Currently changing trends of child health care is demand total health assessment of child including growth and development. This study concentrates on the growth & developmental status of low birth weight infant for help their growth & development. Thus it can be provide a direction for scientific health education and counseling materials by investigating factor of growth & development. The subjects for this study were made up of 40 low birth weight infant who attended the well baby clinic of E university Hospital. The study method used was a questionnaire & anthropometric assessment and DDST for normative data of development. The period for data collection was from July 1st to August 31th, 1982. Analysis of the data was done using percentages, $\chi$$^2$-test Stepwise Multiple Regression. The results of study were as follows. 1. The mean weight of birth was 2,068gm and mean of gestational period was 35.65 weeks. 2. The age at which weight ; 32.5%, head circumference : 67,5% chest circumference : 55.0%, height : 50. 0% was normal range of physical growth. 3. The reverse age at which social development ; 87.5%, fine motor & adaptive development ; 70.0%, gross motor development ; 72.5% of children Passed by DDST to determine of normal range of development. 4. In the among variables, it was found that the infant who were the higher emotional & verbal response of mother and stimulus environment was the more normal range of weight & development than who was not. 5. The stepwise Multiple Regression between developmental status and predictors-birth order, weight at birth, sex, antenatal care, gestational period-are accounts for 34.1%.

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Importance Analysis of SCM Adoption Factors (SCM 도입 요인 중요도 분석)

  • Kim, Wou-Yong;Yang, Hea-Sool
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.9
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    • pp.2290-2299
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    • 2009
  • This study aims to analyze the importances of various SCM adoption factors suggested in precedent researches with AHP. SCM adoption factors were categorized by four types: organization factor, transaction factor, relation factor, and information factor. Each factor has sub-factors. Organization factor has five sub-factors: adoption strategy, support of CEO, maturity of information technology, development of assessment system, and innovation leadership. Transaction factor has three sub-factors: transaction period, delivery/quality, and shared goal. Relation factor has five sub-factors: trust, collaboration, inter-dependence, conflict, and immersion. Information factor has three sub-factors: information quality, information share, and information exchange. There are sixteen sub-factors altogether. Analyzing the importances of SCM adoption factors with AHP, the importance of organization factor(.387) ranked the highest. Relation factor(.291), information factor(.167), and transaction factor(.155) followed. Putting the analysis results of primary hierarchy factors and secondary hierarchy factors together, support of CEO(.169) ranked the highest and trust(.124), adoption strateg (.089), share goal(.081), information exchange(.069), collaboration(.064), and information share (.057) followed.

The Accuracy Analysis of Combined Geodetic Network Considering the Weight Factor. (Weight Factor를 고려한 복합측지망의 정확도 해석)

  • 강준묵;이진덕;이용창
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.6 no.2
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    • pp.19-27
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    • 1988
  • In determining the horizontal positions, economic, speedy, and accurate analytical adjustment methods have studied and developed for a long time. From now on, the adjustment methods using both angles and distances are expected because the development of more precise instruments, E.D.M, and electronic total station provide us with more advantages than the conventional measurement system. The objective of this paper is to study the characteristics of triangulation, trilateration, and combination method due to change of the weight factor of angles, distances, azimuthes, and control point coordinates of combined geodetic network. The results of this study show that combined method is more accurate and effective than other methods in case of combined geodetic network as the other simple networks.

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3-D Body Typing of Korean Adults and its Application to Vehicle Design (자동차 설계를 위한 한국인 3차원 표준 형상의 선정)

  • Hong, Seung-U;Park, Seong-Jun;Jeong, Ui-Seung
    • Journal of the Ergonomics Society of Korea
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    • v.25 no.2
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    • pp.85-94
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    • 2006
  • The purpose of this study is to extract typical body shapes of Korean adults based on the three-dimensional Korean anthropometric data measured through 5th national anthropometric survey and to examine the suitability of the 3-D human shape data for the interior packaging. 36 three-dimensional anthropometric variables related to the design of vehicle interior were considered for the appraisal of typical body shapes. Four major factors were extracted by the factor analysis and factor scores were calculated for all subjects. Typical or standard drivers of Korean adults were selected by the minimum deviation criteria for the four factor scores with respect to 5th, 50th, and 95th percentiles, respectively. Typical drivers of Korean adults were visualized by the CATIA-HUMAN program due to the absence of proper application software for three-dimensionally scanned human body data. There are considerable differences between the anthropometric data of Korean adults and those provided by CATIA-HUMAN program, which shows that the modeling data provided by CATIA-HUMAN should not be directly applied to the ergonomic evaluation for the vehicle design. This suggests the necessity for the development of suitable software for scanned human shape data. It is also expected that the anthropometric data of typical drivers extracted from this study help design package layouts and improve the suitability of ergonomic evaluation for Korean customers.

Validity of Korean Version of Clinical Decision Making Short Form Scale (한국어판 임상적 의사결정 (clinical decision making) 축약도구의 타당성 검정)

  • Kim, Myoung Soo;Jung, Hyun Kyeong
    • Korean Journal of Adult Nursing
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    • v.26 no.4
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    • pp.403-412
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    • 2014
  • Purpose: The purpose of this study was to validate the Korean version of shortened Nursing Decision-Making Instrument developed by Lauri & $Salanter{\ddot{a}}$(2002). Methods: The subjects were 247 nurses working in eight hospitals of Korea. Data were collected by questionnaires from June to July, 2012 and were analyzed by Principal Component Analysis for construct validity and Cronbach's ${\alpha}$ coefficient for reliability. Results: Factor loadings of the four subscales ranged from .32 to .73. The explained variance from the four factors was 48.54% of the total variance. The factors were named 'implementation of plan, monitoring and evaluation', 'plans of action', 'data collection', and 'data processing and identification'. The first factor consisted of 6 items which explained 13.21% of the total variance and the second factor contained 8 items. The Cronbach's ${\alpha}$ coefficients of the four subscales were from .64 to .81. Conclusion: The Korean version of the shortened Nursing Decision-Making Instrument has satisfactory construct validity and reliability. However, that the scores of the analytic items weren't reversed unlike the analysis method of the original tools is the biggest limitation of this study. In addition, based on the fact that there were several discrepancies for item interpretation of Korean comparing to the findings of the instrument development study, repetitive researches would be suggested.