• Title/Summary/Keyword: Total Impact Factor

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A Study on the Determination of Fracture Parameters for Rubber Toughened Polymeric Materials Using on Instrumented Charpy Impact Test (계장화 샤르피충격시험기를 이용한 고무보강 폴리머재료의 파괴인자 결정에 관한연구)

  • Park, Myeong-Gyun;Choe, Yeong-Sik;Park, Se-Man;Yang, Jin-Seung
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.26 no.8
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    • pp.1520-1526
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    • 2002
  • The Charpy and Izod impact tests are the most prevalent techniques used to characterize the effects of high impulse loads on ploymeric materials. An analysis method for rubber toughened PVC is suggested to evaluate critical dynamic strain energy release rates(G$\_$c/) from the Charpy impact energy measurements. An instrumented Charpy impact tester was used to extract ancillary information concerning fracture parameters in addition to total fracture energies and maximum critical loads. The dynamic stress intensity factor Kid was computed for varying amounts of rubber contents from the obtained maximum critical loads and also toughening effects were investigated as well.

A study on Appreciation and Perceptive Structure of "Keijeok" (Amenity) image ("쾌적" 이미지의 평가 및 인식구조에 관한 연구)

  • Yang, Jin Woo;Roh, Kyong Joon;Ahn, Jung Hyun
    • Journal of Environmental Impact Assessment
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    • v.8 no.1
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    • pp.61-70
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    • 1999
  • The purpose of this study is to understand an appreciation and a perceptive structure of "keijeok" image by Semantic Differential Technique and Factor Analysis. The data used in this study was obtained by the questionnaire survey carried out in Pusan metropolitan city. 15 adjective pairs in the survey were evaluated by the Semantic Differential scales graded 7 ranges from 1(very good) to 7(very bad). A total of 452 samples were collected by the survey and analyzed for this study. The results are as follows; First, 15 variables comprehended to "keijeok" image were estimated as a positive conception(LT 4.0). What's more, residents may perceive "keijeok" image as intangible and aesthetic aspect such as "fresh", "pleasant", "clean". Second, the result of factor analysis shows that factor I which express the major conceptual meaning of "keijeok" image tends to have intangible or aesthetic adjective pairs rather than concrete, whereas factor II which has the weaker meaning compared with factor I may represent a functional aspect of "keijeok" image. It can explain that the perceptive structure of "keijeok" image may be largely influenced by subjective sense, then added or concreted with objective conception or environmental situation. The results can be considered as an important matter which should be reflected at the stage of environmental planning for people's amiable and desirable place.

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Analysis on the Relationship Between Climatic Variation and Total Factor Productivity of Manufacture Industries of Korea (한국 기후변동 패턴과 제조업 총요소생산성의 관계 분석)

  • Choi, Young Jun;Park, Hyun Yong
    • Environmental and Resource Economics Review
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    • v.25 no.2
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    • pp.277-297
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    • 2016
  • This study is to analyze the effects of changing pattern of climate vaariables on total factor productivity of Korea manufacture industry. Changes in temperature, rainfalls and humidity which are the representative climate variables are used as main factors. Not only average values of the variables but those highest values are used as independent variables in the model, in order to consider the characteristic pattern of recent climate change, the high volatilities. The OLS results are unlike to previous literature that temperature and humidity had no significant impact on manufacturing productivity. An increase in the amount of precipitation was analyzed that impact negatively impacted. The analysis of panel data showed that temperatures and precipitation all that does not significantly affect the manufacturing. While the increase of the average humidity is shown to increase the total productivity of manufacture industry. In Korea, adaptation capability is important in determining the effects of climate change on productivity of manufacture industry.

Comparison of the Incineration Processes of Domestic Wastes Based on Life Cycle Assessment (생활폐기물(生活廢棄物) 소각(燒却) 처리공정(處理工程)의 전과정(全科程) 평가(平價)에 의한 비교(比較))

  • Jung, Woo-Jung;Lee, Sang-Don;Kim, Dong-Su
    • Journal of Environmental Impact Assessment
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    • v.14 no.6
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    • pp.443-453
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    • 2005
  • For the purpose of the comparative environmental estimation of the incineration processes for domestic wastes, environmental impacts for several incineration processes for one ton of domestic wastes have been estimated by employing life cycle assessment as the environmental impact assessment method. The scheme of minimum production of environmental pollutants has been considered for three different incineration processes. The evaluation for latent influence on environment was carried out by using CML(Center of Environmental Science) method which was developed by University of Leyden in Netherlands based on the equivalency factor suggested by Korea Accreditation Board. The result of life cycle assessment has showed that the total cost analysis according to the amount of incinerating waste was dependent on the operating conditions of incineration process. In addition, the annual running cost for the incineration of one ton of wastes was estimated to be negatively dependent on the amount of wastes. The degree of environmental pollution was mainly due to the kinds of the wastes rather than by the amount of wastes.

Effects of Authentic Leadership and Leader-Member Exchange on Employee Psychological Ownership and Organizational Commitment

  • Yang, Hoe-Chang;Kwon, Jae-Hyun
    • Journal of Distribution Science
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    • v.13 no.11
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    • pp.23-30
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    • 2015
  • Purpose - Small- and medium-sized enterprises often rely on the owner's personal characteristics. This study aims to verify the impact of the awareness of such a business leader's sincerity and the sincerity of their leader-member exchange (LMX) on employee psychological ownership and organizational commitment. The findings offer clues to how small- and medium-sized company leaders should engage with employees. Research design, data, and methodology - A total of 289 valid questionnaires were examined using frequency, descriptive statistics, and correlation analyses and structured equation modeling. Results - Authentic leadership and LMX were both found to have a positive impact on each trust factor, each trust factor had a positive impact on psychological ownership and organizational commitment, and psychological ownership had a positive impact on organizational commitment. Conclusion - These results suggest that small- and medium-size company leaders should use self-awareness and self-regulation to encourage the recognition of their sincerity, and strive to achieve a positive relationship with employees. It also suggests that leaders should improve trust between employees and establish various strategies to enable employee psychological ownership.

Reliability and Validity of The Korean Version Scale of Impact of Weight on Quality of Life in $Kids^{(C)}$ (한국어 버전 청소년의 체중 관련 삶의 질 측정도구의 신뢰도와 타당도 검증)

  • Kim, Jeoung-Hyun;Chun, Sungsoo;Choi, Han-Sik
    • The Journal of Korean Society for School & Community Health Education
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    • v.15 no.3
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    • pp.105-125
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    • 2014
  • Background: The purpose of this study was to evaluate reliability and validity of a 27-item Korean Version of the Impact of Weight on Quality of Life in adolescents ($IWQOL-Kids^{(C)}$: Korean Version). Methods: This instrument was administered to 872 adolescents (mean z-BMI: 2.61, mean $age{\pm}SD$: $13.9{\pm}1.2$, male: 51.9%). Reliability was tested by internal consistency method and item analysis, validity test was performed by index of content validity, exploratory factor analysis, confirmatory factor analysis and concurrent validity. Sensitivity was tested by ANOVA and t-test. Analyses were performed using SPSS and Amos 18.0. Results: By an exploratory factor analysis, 4 factors were extracted; 'Body esteem' consisted of 9 items with 35.9% of variance (social life: 6 items, 10.23%, physical comfort: 6 items, 8.21%, family relations: 6 items, 7.0%). Four factors explained 61.34% of total variance. Internal consistency coefficients ranged from .766 to .929 for scales on 27 items and equal to .920 for total score for both the 26-item and 27-item tools. A confirmatory factor analysis was conducted for the convergent validity and discriminant validity. The standardized factor loadings to test the convergent validity showed more than .5(C.R<1.965) on all paths after deletion of item PC1 (avoid stairs). The average variances extracted were more than .50 and the construct reliabilities were more than .70. The average variances extracted were stronger than the squares of correlation coefficient of inter-latent variables. Conclusions: These results support that the $IWQOL-Kids^{(C)}$: Korean Version with a 26-item is a reliable and valid tool in Korean obese adolescents.

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Business Performance and Implementation of Total Quality Management: A Case Study in Indonesia

  • ANGGADINI, Sri Dewi;SURTIKANTI, Surtikanti;SAEPUDIN, Asep;SALEH, Dean Subhan
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.5
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    • pp.1039-1046
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    • 2021
  • This study aims to determine the influence of the application of Total Quality Management (TQM) in coffee exporting companies in Bali. The research was conducted as there was not much research done to explore the application of TQM in coffee exporting companies in the city of Kintamani, Bali. Thus, this research plays an important role in examining the effect of the application of total quality management factors on company performance. In this research, the effect of TQM variables which are: customer focus factors, continuous improvement factors and employee empowerment factors on the company's performance was measured by using a balanced scorecard approach. The research result showed that the customer focus, the continuous improvement, and the employee empowerment factor has a positive impact on the performance of coffee exporting companies in the City of Kintamani. The result showed that continuous improvement factor has a more dominant influence compared to the customer focus factors and the employee empowerment factor. Thus, it is very important to consider the consistency when the companies implement TQM. In conclusion, TQM is important for coffee exporting companies in Indonesia to enter global competition, especially for world market-oriented companies and should be supported by the government and stakeholders.

A Bibliometric Analysis of Diets and Breast Cancer Research

  • Kotepui, Manas;Wannaiampikul, Sivaporn;Chupeerach, Chaowanee;Duangmano, Suwit
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.18
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    • pp.7625-7628
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    • 2014
  • Breast cancer is the most common cancer among women worldwide. The primary aim of this work was to provide an in-depth evaluation of research publications in the field of diets and breast cancer. The impact of economic outcome on national academic productivity was also investigated. Data were retrieved using Pubmed for English-language publications. The search included all research for which articles included words relating to "diets and breast cancer". Population and national income data were obtained from publicly available databases. Impact factors for journals were obtained from Journal Citation Reports$^{(R)}$ (Thomson Scientific). There were 2,396 publications from 60 countries in 384 journals with an impact factor. Among them, 1,652 (68.94%) publications were Original articles. The United States had the highest quantity (51% of total) and highest of mean impact factor (8.852) for publication. Sweden had the highest productivity of publication when adjusted for number of population (6 publications per million population). Publications from the Asian nation increased from 5.3% in 2006 to 14.6% in 2012. The Original article type was also associated with geography (p<0.001; OR=2.183; 95%CI=1.526-3.123), Asian countries produced more proportion of Original articles (82%) than those of rest of the world (67.6%). Diets and breast cancer-associated research output continues to increase annually worldwide including publications from Asian countries. Although the United States produced the most publications, European nations per capita were higher in publication output.

A Study on the Effects of Business Consulting on the Business Performance: Analysis of Elasticity of Consulting Factors and a Group Analysis Based on Firm Age (경영컨설팅이 기업의 경영성과에 미치는 영향에 관한 연구: 컨설팅 요소의 탄력성 분석과 기업의 업력 기준 집단분석)

  • Lee, Yoo Hwan;Seo, Young Wook
    • Knowledge Management Research
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    • v.19 no.4
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    • pp.39-58
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    • 2018
  • This study explores the effects of business consulting on the business performance of firms by using a unique survey for various industry sectors in Korea. We attempt to build a consulting model that shows the structural relationship between consulting factors and consulting performance. Moreover, through the consulting model, we conduct the analysis of elasticity of consulting factors and the group analysis based on firm age. First, the findings show that all consulting factor has a positive impact on the consulting performance, but in the results of factor elasticity, they have a somewhat different impact. Second, while the support of CEOs is relatively more elastic than other consulting factors with respect to the completion of consulting projects, the institutional condition for consulting is relatively more elastic than other factors with respect to the contribution to business performance. Third, since the high-firm age group has a greater capacity to absorb and utilize external knowledge and resource, the consultant competency and institutional conditions have a more impact on the consulting performance than the low-firm age group. On the other hand, in the low-firm age group, the result indicates that the support of CEOs has a more impact in the consulting performance than the high-firm age group. According to the total effect, the support of CEOs in the entire model has the highest impact on the consulting performance. Thus, it is probably difficult to achieve the improvement of business performance through consulting as well as the successful consulting projects without the CEOs' commitment and awareness about the consulting projects.

The Impact of R&D on the Singaporean Economy

  • Ho, Yuen-Ping;Wong, Poh-Kam
    • STI Policy Review
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    • v.8 no.1
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    • pp.1-22
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    • 2017
  • There has been a pronounced increase in research and development (R&D) expenditure in Singapore over the last two decades, with government spending accounting for a sizeable share. This increase has been spurred by public policy emphasis on research and innovation as engines of economic growth. This paper analyses the impact of R&D on economic performance in Singapore from 1978 to 2012 through the use of time series analysis. The Cobb-Douglas based analysis shows a long-run equilibrium relationship between Total Factor Productivity (TFP) and R&D investments. We found that the short-run productivity of R&D in Singapore is comparable to smaller advanced economies in the Organisation for Economic Co-operation and Development (OECD). However, in terms of long-run R&D productivity, Singapore lags slightly behind the smaller OECD nations and far behind the G7 countries. This suggests leakage of value capture and low absorptive capacity in local firms. Possibility of productivity improvements induced by policy changes in the 1990s was considered, but no evidence of significant structural breaks was found. Lastly, Granger causality analysis reveals that public sector R&D augments private sector R&D capital, thus playing an important role in generating externalities and spillover effects. Policy implications and lessons for other middle-income countries are discussed.