• 태양에너지
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• 제17권3호
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• pp.3-11
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• 1997

Recently the construction of atrium buildings has increased but along with it many problems in thermal environment have arised. since the exterior wall of glass, indoor temperature is greatly influenced by weather conditions and since the space volume is very large, the vertical air temperature is not uniform. So, in this study, a Vertical Temperature Distribution Model was developed to predict the vertical air temperature of an atrium and evaluate the effects of the design parameters on the air temperature distribution of an atrium. To consider the characteristics of the vertical air temperature distribution in an atrium, the Satosh Togari's Macroscopic Model was used basically for the calculation of the vertical air temperature distribution in large space and the solar radiation analysis model and natural ventilation analysis model in atrium. And to calculate the unsteady-state inside wall surface temperature(boundary condition), the finite difference method was used. For the verification of the developed temperature distribution program, numerical evaluation of air flow by the ${\kappa}-{\varepsilon}$ turbulence model and in-situ test was conducted in parallel. The results of this study, the developed temperature distribution program was seen to predict the thermal condition of the atrium very accurately.

• 대한공간정보학회지
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• 제12권3호
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• pp.43-50
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• 2004

본 연구에서 교통수요 예측기법 중 통행량 분포기법의 이론적 배경에 대하여 광주광역시를 중심으로 컴퓨터 시뮬레이션을 통하여 분석 평가하고 모형에 내재되어 있는 매개변수의 특성변화를 연구하여 통행량 분포모형의 적용 타당성을 찾고자 하는데 연구의 목적이 있다. 본 연구에서는 통행분포모형의 정립을 목적으로 광주시의 20개 대존 중에서 도심지역에 해당되는 9개 존을 중심으로 한 통행목적별, 수단별, 출발 도착통행량 모형을 정립하였다. 여기에서는 기준 년도를 1996년으로 하고 2001년까지의 통행량을 분석하고 2008년도까지의 통행분포량을 예측하였다.

• 대한물리치료과학회지
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• 제19권3호
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• pp.9-15
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• 2012

Background : The purpose of this study was to compare the effects of functional electrical stimulation(FES) on weight distribution and synchronization of the lower extremity of patients with post-stroke. Methods : They were randomly divided into two groups, 8 people in the experimental group and 7 people in the control group. A total of 15 subjects volunteered to participate in this study. experimental groups were treatment FES training on parallel bars and control groups were FES training on chair. They was performed for 15 minute, three times in a week, for the 6 weeks. Result : The experimental group The weight distribution A, B, C, D and synchronization AB, CD, AD, BC indicating changes in statistical significance(p<.05). However, the control group only showed significantly increased weight distribution A, C(p<.05). In a variation, experimental and control groups showed significantly increased weight distribution A, B, C and synchronization AD. Conclusion : These findings suggest that the FES training on parallel bars are effective in improving the weight distribution and synchronization of lower extremity of patients with post-stroke. Further study will be continued in this method of therapeutic exercise and additional physical therapy program.

• 유통과학연구
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• 제19권10호
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• pp.17-22
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• 2021

Purpose: Covid-19 has caused an unprecedented situation for the tourism industry with slumping demand during the outbreak and many uncertainties about tourist behavior in the post-pandemic. This study is aimed to discover the distribution in the behavior of tourists in Vietnam, whose government has taken serious and early actions towards the health crisis and among the earliest to reopen the economy. Research design, data, and methodology: We adopted a mixed-method approach - combining qualitative interviews with quantitative research using a questionnaire survey. Through the form of the online survey through social networking channels: Facebook, Gmail. The study received 261 valid responses for analysis. Multivariate analysis techniques were used: descriptive statistics, exploratory factor analysis (EFA). Results: From the data and result of EFA, the result showed that the distribution of tourist behavior could be grouped into four main factors, including (1) the general impacts, (2) travel-related behaviors; (3) attitudes and preferences regarding modes of tours and destinations; (4) awareness of safety and hygiene. Conclusions: These results highlighted the importance of the theory of perceived risks in explaining the travelers' prudent decisions. In addition, this study provides practical implications for policymakers and various stakeholders of Vietnam's tourism industry in formulating the recovery strategy.

• 대한안전경영과학회지
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• 제22권4호
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• pp.65-74
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• 2020

Many of companies have made significant improvements for globalization and competitive business environment The supply chain management has received many attentions in the area of that business environment. The purpose of this study is to generate realistic production and distribution planning in the supply chain network. The planning model determines the best schedule using operation sequences and routing to deliver. To solve the problem a hybrid approach involving a genetic algorithm (GA) and computer simulation is proposed. This proposed approach is for: (1) selecting the best machine for each operation, (2) deciding the sequence of operation to product and route to deliver, and (3) minimizing the completion time for each order. This study developed mathematical model for production, distribution, production-distribution and proposed GA-Simulation solution procedure. The results of computational experiments for a simple example of the supply chain network are given and discussed to validate the proposed approach. It has been shown that the hybrid approach is powerful for complex production and distribution planning in the manufacturing supply chain network. The proposed approach can be used to generate realistic production and distribution planning considering stochastic natures in the actual supply chain and support decision making for companies.

• 유통과학연구
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• 제19권7호
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• pp.61-73
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• 2021

Purpose: This study offers suggestions to e-commerce companies for increasing shoppers' repurchase intention by considering the effect of distribution information in online shopping. It applies complexity theory to incorporate habitual information search behavior and shopper characteristics into the Stimulus-Organism-Response model and indicates how these complex factors work together in online shopping. Research design, data, and methodology: This study used an interview survey of 158 Vietnamese consumers with an experience of online shopping. A fuzzy-set Qualitative Comparative Analysis (fsQCA) was used to examine the relationship between antecedents and outcomes depending on complex conditions in the given contexts. Results: The results (1) indicate the importance of observing information search patterns and investigating their influence on online distribution, and (2) clarify what kind of configurations, under what conditions, predict a high or low outcome; this provides evidence and hints for the development of frameworks for future studies. Conclusions: The findings suggest that shoppers' unconscious, habitual behavior can work with conscious attitude factors, such as satisfaction, to increase their repurchase intention. Hence, e-commerce companies should consider how to present useful distribution information and create functions that allow shoppers to engage with a variety of information while increasing their repurchase intention on the site.

• 유통과학연구
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• 제20권5호
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• pp.13-22
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• 2022

Purpose: This study aimed to identify factors affecting attitudes and intentions toward online purchasing of millennials and gen z in Indonesia by considering distribution capabilities factors. Research design, data and methodology: This study used a non-probability sampling technique. The questionnaire was distributed through an online platform and obtained 225 respondents. The data acquired from the respondents used SPSS 23 and AMOSS 21 to process the Structural Equation Model (SEM). Results: The results of this study stated that attitudes and intentions toward online purchases were influenced by delivery speed and trust. The results also stated that the perception of web quality positively influenced trust. On the other hand, shipping tracking, people's importance to consumers, and online reviews had no significant effects on online purchasing attitudes. Conclusions: This research has made an essential contribution to increasing and expanding our understanding of factors that affect attitudes and intentions toward online shopping in a developing market, Indonesia. From a practical perspective, this research examined the integrated consumer model of millennials and Gen Z online shopping in Indonesia that considers distribution capability, trust, and perceived website quality factors. Therefore, e-commerce business actors can design e-marketing strategies and programs to achieve the company's long-term goals.

• 유통과학연구
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• 제21권5호
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• pp.31-41
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• 2023

Purpose: Electric vehicle (EV) technology started in 2015 in Thailand. The Thai Government has indicated that 30% of all cars produced in Thailand by 2025 will be EVs. Using EVs in Thailand will reduce road pollution and increase energy efficiency, especially in major cities. Hence, the adoption of EVs in the country has been promoted. This study pointed out that social influence, facilitating conditions, perceived enjoyment, environmental concern, attitude, and perceived behavioral control are key factors affecting the behavioral intention to adopt EVs among logistic and distribution firms in Thailand. Research design, data, and methodology: 500 top management, middle management and purchasing managers of logistic and distribution firms in Thailand are surveyed. The study employed judgmental, convenience, and snowball sampling. Confirmatory Factor Analysis (CFA) and Structural Equation Model (SEM) are the main statistical tools for data analysis. Results: The results show that all determinants impact customers' willingness to adopt EVs, except perceived enjoyment and environmental control. Conclusions: The study proposes to promote the incentives by decreasing electricity prices and endorsing EVs purchase to accelerate the adoption of EVs in Thailand. Therefore, future policies should focus on behavioral intention toward EVs amongst logistic and distribution firms for enhancing the future of mobility in Thailand.

• 유통과학연구
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• 제20권3호
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• pp.53-58
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• 2022

Purpose: Controlling and minority shareholders sometimes have conflicting interests. Controlling shareholders who do not have adequate monitoring can exhibit a strong tendency to maximize their personal wealth. In this case, cash holdings can be the easiest means for them to pursue their personal interests. This study examined whether the largest shareholder's ownership proportion affected the speed at which firms adjust their cash holdings to target levels in Korean distribution and service companies. Research design, data, and methodology: The study uses regression analysis to examine 834 firm-year samples listed on the KOSPI between 2013 and 2018 in the distribution and service sectors. Results: The largest shareholder's ownership is positively related to a firm's cash holdings adjustment speed. That is, the larger the largest shareholder's ownership, the faster the firm adjusts its cash holdings to achieve the target level. Conclusions: This study contributes to the literature by providing evidence that the cash holdings adjustment speed in Korean service and distribution companies is affected by the largest shareholder's ownership. As the agency problem between controlling and minority shareholders in Korea is a major issue, minority owners' sensitivity to agency costs may help restrict controlling owners' ability to maximize their personal wealth.

• 유통과학연구
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• 제21권1호
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• pp.65-72
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• 2023

Purpose: The purpose of this study was to determine the effect of Service Quality on Brand Performance through Satisfaction at an aviation campus in the Special Region of Yogyakarta, Indonesia. Research design, data, and methodology: This research design was hypothesis testing using primary data obtained by distributing questionnaires directly to 200 respondents who were active students at an aviation campus in the Special Region of Yogyakarta, Indonesia. The analytical method used was the Structure Equation Model (SEM). Results: The results of this study show that: (1) there was a significant and positive relationship between Service Quality and Satisfaction, (2) there was a significant and positive relationship between Satisfaction with Brand Performance, and (3) there was a significant and positive relationship between Service Quality and Brand Performance. Conclusion: This study concludes that for the dimension of Academic service quality distribution from the service quality variable, it is suggested to improve detailed recording by academic teaching staff. For the dimensions of Administrative Service Quality distribution from the Service Quality variable, it is recommended to increase the hospitality in the campus environment. For the dimensions of Facility Service Quality distribution from the Service Quality variable, it is recommended to increase satisfaction in terms of facilities on campus. For the Satisfaction variable, it is suggested to improve the performance of the staff and the academic community.