• Journal of Family Resource Management and Policy Review
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• v.22 no.4
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• pp.75-87
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• 2018

The purpose of this study is to identify the intention of one-person households' selection in the university students. The survey was analyzed with factor analysis, reliability, cross tabulation analysis, t-value, and regression analysis with SPSS version. 18.0. The total of 237 male and female university students participated in the survey. The results were summarized as follows. First, there were significant differences between male and female students in the important factors, problems and reasons when selection of the one-person households in the future, and the perception of one-person households. Second, gender, perception of one-person households, the importance of self-improvement, housing expenses, and family rite had significant effects on the intention of one-person households' selection. The result of the study can be used as basic data for social discussion about one-person households.

• KIPS Transactions on Software and Data Engineering
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• v.8 no.4
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• pp.153-162
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• 2019

Recently, it is necessary to develop a technology for quantitatively evaluating railway vibration to prevent civil complaints about orbital structures caused by railway noise and normal operation of ultra-precise equipment of orbital industrial complexes. The existing analytical method requires a very complicated dynamic response model, and it is difficult to secure the reliability of the result due to the inaccuracy of the demand model. Therefore, in this paper, we propose a railway vibration evaluation algorithm and system that deduce the vibration value generated from railway operation by using Linear Regression and Gradient Descent technique based on actual measurement railway vibration database that classifies factors affecting railway vibration. The prediction results obtained by the proposed algorithm show higher efficiency and accuracy than the existing analytical methods.

• Journal of the Society of Naval Architects of Korea
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• v.56 no.3
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• pp.187-199
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• 2019

In the case of gas carriers and oil tankers, pipes are installed on the upper deck as a moving passage to load LPG, LNG, crude oil, etc. Pipes used for loading or unloading liquid cargo in cargo holds are connected to the hull through support structures. However, many cases of hull damage have been reported where the various equipment and support structures are installed on the upper deck. It is assumed that not only the structural discontinuity where the hull and the pipe support structure meet, but also action due to the pipe loads and the hull girder bending moment are simultaneously affected. This paper deals with the design and strength evaluation of the support structure of pipes and cables installed on the upper deck of commercial ships and offshore structures. For these supporting structures, design conditions and working loads were defined. The design procedure was established through the structure analysis on the method of determining the member dimensions. A series of finite element analysis was performed on the factors to be considered in the design and the effects were discussed. The accuracy and design periods of the strength evaluation was improved and reduced by application of the automation program in the finite element analysis. It is also expected that the design reliability of the shipyard is improved.

• Advances in Computational Design
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• v.4 no.2
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• pp.91-118
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• 2019

Every year, many people are severely injured or lose their lives in accidents such as fire, chemical spill, public pandemonium, school shooting, and workplace violence. Research indicates that the fate of people in an emergency situation involving one or more hazards depends not only on the design of the space (e.g., residential building, industrial facility, shopping mall, sports stadium, school, concert hall) in which the incident occurs, but also on a host of other factors including but not limited to (a) occupants' characteristics, (b) level of familiarity with and cognition of the surroundings, and (c) effectiveness of hazard intervention systems. In this paper, we present EVAQ, a simulation framework for modeling large crowd evacuation by taking into account occupants' behaviors and interactions during an emergency. In particular, human's personal (i.e., age, gender, disability) and interpersonal (i.e., group behavior and interactions) attributes are parameterized in a hazard-impacted environment. In addition, different hazard types (e.g., fire, lone wolf attacker) and propagation patterns, as well as intervention schemes (simulating building repellent systems, firefighters, law enforcement) are modeled. Next, the application of EVAQ to crowd egress planning in an airport terminal under human attack, and a shopping mall in fire emergency are presented and results are discussed. Finally, a validation test is performed using real world data from a past building fire incident to assess the reliability and integrity of EVAQ in comparison with existing evacuation modeling tools.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.12 no.2
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• pp.150-154
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• 2019

In the design of semiconductor integrated circuits, ESD is one of the important issues related to product quality improvement and reliability. In particular, as the process progresses and the thickness of the gate oxide film decreases, ESD is recognized as an important problem of integrated circuit design. Many ESD protection circuits have been studied to solve such ESD problems. In addition, the proposed device can modify the existing SCR structure without adding external circuit to effectively protect the gate oxide of the internal circuit by low trigger voltage, and prevent the undesired latch-up phenomenon in the steady state with high holding voltage. In this paper, SCR-based novel ESD(Electro-Static Discharge) device with the high holding voltage has been proposed. The proposed device has the lower triggering voltage without an external trigger circuitry and the high holding voltage to prevent latch-up phenomenon during the normal condition. Using TCAD simulation results, not only the design factors that influence the holding voltage, but also comparison of conventional ESD protection device(ggNMOS, SCR), are explained. The proposed device was fabricated using 0.35um BCD process and was measured electrical characteristic and robustness. In the result, the proposed device has triggering voltage of 13.1V and holding voltage of 11.4V and HBM 5kV, MM 250V ESD robustness.

• Journal of the Korean Society of Clothing and Textiles
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• v.42 no.6
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• pp.1025-1038
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• 2018

This study identifies the socio-psychological factors on athleisure wear purchase behavior and focuses on the effects of participation motives in sports leisure activity. This research compares athleisure wear purchase behavior among the three groups segmented by participation motives for sports and leisure activity. An online survey on male and female consumers between the ages of 20 and 50 provided 319 responses that were analyzed using SPSS 20.0. The factor analysis and reliability analysis, cluster analysis, variance analysis, Duncan test, and Chi square test were conducted. The results were: 1) From a result of the factor analysis on consumers' sports leisure participation motives clearly showed factorial structures including social interaction, physical health, and pleasant feeling. 2) Cluster analysis indicated three groups of participation motives in sports and leisure activity such as passive motivating type, social interaction type, and wellness type. 3) Consumer groups showed significant differences in purchase reasons, preferred brands, product items, and pursued performance attributes for purchasing athleisure wear products.

• International Journal of Internet, Broadcasting and Communication
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• v.13 no.4
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• pp.154-168
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• 2021

The purpose of this study is to develop and validate the disaster safety awareness scale for high school students. For this purpose, the previously developed disaster safety awareness scale and related prior research was analyzed. Questionnaire data was collected from March 22 to May 25, 2021 from 1054 students (male: 569, female: 485) in the first, second, and third grades of 5 high schools in 3 cities. Through the process of revising, supplementing, and reviewing the items extracted through preliminary research and preliminary test together with experts and students, a final disaster safety awareness scale consisting of 24 items was developed. This scale consists of four sub-factors: 'disaster prevention', 'disaster response A', 'disaster response B', and 'disaster recovery'. Good reliability and validity were secured through exploratory and confirmatory analyses. The significance of this study is that it laid a basic and objective foundation for high school students' disaster safety awareness research by developing a validated scale in a situation where the development of disaster safety awareness scales for high school students was still insufficient. It can be used as useful data for fire safety education as well as a psychological measurement tool for fostering fire safety awareness.

• The Korean Journal of Health Service Management
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• v.13 no.2
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• pp.1-14
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• 2019

Objectives: This study was conducted to analyze the effect of hospital social responsibility(HSR) activities on organizational health and customer orientation. Methods: We conducted an online survey with hospital employees and analyzed the questionnaires of 206 selected respondents. A regression analysis was performed to determine the relationship between independent and dependent variables. Results: First, 'consumer issues', 'community involvement and development', and 'fair operating practice' factors in HSR influenced 'medical environment suitability' in organizational health. The 'fair operating practice' factor in HSR affected 'management environment suitability' and 'community orientation' in organizational health. The 'labor practices' factor in HSR affected 'practices suitability' and 'vitality' in organizational health. Second, the activities on 'consumer issues' and 'environment' in HSR have influenced 'Reliability', 'Reactivity' and 'Tangibility' in Customer Orientation. The activities on 'consumer issues' have affected 'Empathy'. Conclusions: The results of this study provide a positive direction for medical institutions as they conduct HSR activities and provide a basis for establishing effective HSR strategies.

• The Korean Journal of Health Service Management
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• v.13 no.3
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• pp.105-114
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• 2019

Objectives: This study aimed to provide a comprehensive analysis of the relationship between the service quality of the Korea Health Industry Development Institute (KHIDI), along with the utilization of and customer satisfaction with its export supporting program, and the export performance of Korean pharmaceutical companies. Methods: An online and offline survey was conducted on Korean pharmaceutical companies that have used the export supporting program provided by KHIDI. Data on the service quality of KHIDI, utilization of and customer satisfaction with the export supporting program, and company export performance were collected via survey. Results: Results indicated that systemizing and reliability service factors of the export supporting program have a significant impact on customer satisfaction, and customer satisfaction has a significant impact on utilization of the export supporting program. Furthermore, customer satisfaction and utilization of the program have a significant impact on company expectations regarding future export performance. Conclusions: As a result, service quality, utilization, and customer satisfaction were found to affect Korean pharmaceutical company's expectations regarding their future export performance. The results of this study can significantly impact the development of export supporting programs.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.1
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• pp.317-326
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• 2021

This study examines factors influencing the corporate identity (CI) of pharmacy retail stores (PRSs) in Thailand as a means to construct a unique corporate identity to represent their strengths and image abroad. An exploratory sequential design was applied. A pilot study involving interviews with four pharmacists was conducted to obtain the variables, and then a questionnaire was designed and administered to 392 respondents. The collected data was analyzed to examine correlations via descriptive analysis, Pearson's correlation, and multiple linear regression (MLR). The results show that wisdom and pharmaceutical care explain 44% of the variance in defining Thai PRSs identity. There is a 61% chance that Thai PRSs should consider wisdom as the most important factor. These findings provide useful insights for pharmacists, pharmaceutical entrepreneurs, and owners of PRSs to enhance competitiveness by devising strategies to create their corporate identity. For the qualitative analysis, Thai PRSs should encourage pharmacists to gain real working experience to develop their wisdom, experience, and skills. Besides, PRSs that build identities as knowledgeable, sincere, and compassionate health providers can successfully expand their operations to other ASEAN countries, as end-consumers will be confident in the reliability of their services.