• Environmental Engineering Research
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• 제21권4호
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• pp.355-364
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• 2016

Beijing, as a cradle of modern industry and the third largest metropolitan area in China, faces more responsibilities to adjust industrial structure and mitigate carbon emissions. The purpose of this study is aimed at predicting and comparing industrial carbon emissions of Beijing in ten scenarios under different policy focus, and then providing emission-cutting recommendations. In views of various scenarios issues, system dynamics has been applied to predict and simulate. To begin with, the model has been established following the step of causal loop diagram and stock flow diagram. This paper decomposes scenarios factors into energy structure, high energy consumption enterprises and growth rate of industrial output. The prediction and scenario simulation results shows that energy structure, carbon intensity and heavy energy consumption enterprises are key factors, and multiple factors has more significant impact on industrial carbon emissions. Hence, some recommendations about low-carbon mode of Beijing industrial carbon emission have been proposed according to simulation results.

• 한국게임학회 논문지
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• 제17권2호
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• pp.123-134
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• 2017

본 연구에서는 학교 장면에서 학생들의 디지털 게임 이용에 대한 교사의 수용도가 어떻게 구성되어 있는지를 살펴보고, 교사의 수용도에 영향을 미치는 요인에 대해 알아보았다. 이를 위해 2016년 8월 설문조사를 실시하였고, 초, 중, 고등학교 교사와 상담교사, 전문 상담사, 총 250명의 자료가 분석되었다. 그 결과, 학생들의 디지털 게임 이용에 대한 교사의 수용도는 5개의 하위요인인 관리/감독의 필요성, 적극 활용의사, 관심과 확인, 부적응 대체활동으로 인정, 수용 효능감으로 구성되어있었다. 다변량다중회귀분석방법을 통해 분석한 결과, 교사의 연령, 디지털 미디어 리터러시의 하위요인 중 공동체성과 탈규범성, 학생들의 디지털 게임 이용에 대한 교사 태도와 디지털 게임이 학업에 미치는 영향에 대한 교사 평가가 교사의 수용도 5개 하위요인에 차별적으로 영향을 미치는 것으로 확인되었다. 본 연구는 교육적 잠재력이 강조되고 있는 디지털 게임에 대한 교사의 수용도가 어떻게 구성되어있는지를 구체적으로 확인하고, 교사의 수용도를 촉진하는데 영향을 주는 주요 요인들을 밝혔다는데 그 의의가 있다.

• 종양간호연구
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• 제12권2호
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• pp.139-146
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• 2012

Purpose: This study was designed to identify the impact of uncertainty degree and uncertainty appraisal on cancer patients resilience. Methods: A sample of 181 patients with cancer was recruited from a hospital in Incheon. Data were collected from May 20 to August 25, 2011. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and multiple regression with the SPSS/WIN 12.0 program. Results: The resilience for cancer patients showed a significant relationship with uncertainty degree and uncertainty appraisal. The significant factors influencing resilience were uncertainty degree and uncertainty appraisal, they explained 26.5% of the variance. Conclusion: Patients with cancer were adversely affected by uncertaint which led to a negative effect on resilience. The result suggests that intervention programs to reduce the level of uncertainty among patients could improve the resilience of cancer patients.

• 환경영향평가
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• 제15권1호
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• pp.13-22
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• 2006

The Korean government adopted the integrated stream water management policy recently with growing perception that natural disasters and pollution in Korea have been due not only to such human factors as urbanization and industrialization, but also to the policy of functionally separated management of irrigation, flood control and ecological management. Contrary to its good intention, research result shows that it is not realistic to expect that this new integrated policy in Korea will work well. In order to be an effective policy and program evaluation, this paper suggests that evaluation indicator on related programs and projects should be made through bottom-up process. For example, environmental benefit should be taken into account rather than just economic benefit, and cultural and social characteristics in the project region should be also considered seriously.

• 한국통신학회논문지
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• 제33권5A호
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• pp.500-508
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• 2008

Direct-sequence ultra-wideband(DS-UWB) system is being considered as one of promising transmission technologies for wireless personal area networks(WPANs). Due to relatively low spreading factors and huge bandwidth of transmit signal, a DS-UWB receiver needs to be equipped not only with a rake receiver but also with an equalizer, of which the equalizer is not required for traditional direct-sequence code division multiple access(DS-CDMA) systems. The number of rake fingers is limited in practice, influencing the performance of the subsequent equalizer. In this paper, we derive a decision feedback equalizer(DFE) for DS-UWB systems based on the minimum mean square error(MMSE) criterion, and investigate the impact of various parameters on the DFE performance in realistic scenarios. In particular, we propose an approach to improving the performance of the DFE using additional channel estimates for multipaths not combined in the rake receiver, and discuss how the accuracy of channel estimation affects desirable DFE configuration. Moreover, we present simulation results that show the impact of turbo equalization on the DFE performance.

• Asia Marketing Journal
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• 제15권2호
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• pp.1-27
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• 2013

The main goal of this study is to examine the competition intensity in the Korean bakery franchise industry and to identify the core competencies of the industry's leading company, Paris Baguette. The frameworks of PEST analysis, Cross Impact analysis, a Five Forces Model, a Value Chain, and VRIO analysis. PEST and Cross Impact analysis were employed to investigate the industry's external environment, and the results indicated that 'increased attention on corporate's Creating Shared Value (CSV) activities' is the most influential factor among others. The analysis using the Five Forces Model found industry rivalry and substitutes were the greatest threats. Finally, the results of Value Chain and VRIO analysis identified four core competencies of Paris Baguette: its CEO's craftsmanship, e-procurement system, quality of dormant dough, and hub system. Multiple managerial implications are suggested for practitioners in the marketing area, especially in the saturated market environment.

• 대한간호학회지
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• 제42권2호
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• pp.199-206
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• 2012

Purpose: This study was done to identify the impact of physical activity on healthcare utilization among Korean adults. Methods: Drawing from the 2008 Korean National Health and Nutrition Examination Survey (NHANES IV-2), data from 6,521 adults who completed the Health Interview and Health Behavior Surveys were analyzed. Association between physical activity and healthcare utilization was tested using the $X^2$-test. Multiple logistic regression analysis was used to calculate the odds ratios of using outpatient and inpatient healthcare for different levels of physical activity after adjusting for predisposing, enabling, and need factors. A generalized linear model applying a negative binomial distribution was used to determine how the level of physical activity was related to use of outpatient and inpatient healthcare. Results: Physically active participants were 16% less likely to use outpatient healthcare (OR, 0.84; 95% CI, 0.74-0.97) and 23% less likely to use inpatient healthcare (OR, 0.77; 95% CI, 0.63-0.93) than physically inactive participants. Levels of outpatient and inpatient healthcare use decreased as levels of physical activity increased, after adjusting for relevant factors. Conclusion: An independent association between being physically active and lower healthcare utilization was ascertained among Korean adults indicating a need to develop nursing intervention programs that encourage regular physical activity.

• 한국치위생학회지
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• 제18권5호
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• pp.807-819
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• 2018

Objectives: The purpose of this study was to identify the factors affecting the oral health behavior of mothers in multicultural families and the oral health management of children. Methods: The subjects were 303 mothers in multicultural families having children in childhood. To verify the validity of the outcome, a factorial analysis was conducted. To examine differences in the outcome according to socio-demographic characteristics, a one-way ANOVA was used, and the hypothesis was tested through a multiple regression analysis. Results: According to the results, it was found that severity, self-efficacy, sensitivity, and multicultural disability that show attitudes had significant impact on the mother's oral health behavior. Moreover, it was found that self-efficacy, sensitivity, and the mother's oral health behavior that show attitudes had significant impact on the children's oral health management. Conclusions: Based on the results of this study, it would be necessary to increase the interest in mother-and-child oral health, developing a mother-and-child oral health education program targeted toward the oral health of the mothers and children in multicultural families. Moreover, it is essential to educate mothers in multicultural families in order to increase their sense of responsibility toward their children's oral health management, aiming to promote knowledge and to change attitudes and behavior.

• 국토계획
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• 제54권4호
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• pp.122-130
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• 2019

The purpose of this study is to analyze effect of climate and urban factors on energy resilience, and to explore policy alternatives to strengthen resilience of energy system. For this purpose, this study used extensive literature review on resilience studies and multiple regression analysis. In this study, blackout time was set as a dependent variable. And the independent variables were divided into climate and urban (robustness, countermeasure capacity) characteristics. As a result of the analysis, in terms of climate characteristics, maximum wind speed and cooling/heating degree-day have statistically significant impact on blackout time. With regard to urban characteristics, number of consumer, ratio of deteriorated housing and coast dummy variables have statistically significant impact on blackout time. And the ratio of government employees and road ratio were found to be the most influencing factors to shorten time taken to restore original level of electricity supply. Based on the study results, several policy suggestions to improve energy resilience were made such as continuous management of vulnerable areas and strengthening disaster response services. This study only considered engineering dimension of resilience. Further studies need to be approached on ecological & social-ecological dimension.

• 유통과학연구
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• 제20권10호
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• pp.51-60
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• 2022

Purpose: The aim of this research is to study 1) the effects of internal factors (technological capability and entrepreneurial orientation) that affect Thailand's hotel business network capability. 2) the effects of external factors (government policy and trust relationship) that affect Thailand's hotel business network capability. 3) the impact of network capability on the firm performance. 4) the moderating effect of absorptive capacity between network capability and firm performance. Research design, data and methodology: The test model collected data from a mail survey of 164 hotel businesses in Thailand. The correlation and multiple regression were adopted to analyze and test the proposed hypotheses. Results: Interestingly, technological capability, entrepreneurship orientation, and trust relationship have a direct impact on network capability. However, network capability still does not have a significant relationship with firm performance in all dimensions. Surprisingly, the absorptive capacity does not have a moderating effect on the relationship of network capability on firm performance of hotel businesses in Thailand. Conclusions: This research found that the hotel business should focus on analyzing the external and internal environment as it affects network building, which will guide the creation of strategies for further increasing hotel distribution channels and competitive advantage.