• Korean Journal of Construction Engineering and Management
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• v.25 no.4
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• pp.15-23
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• 2024

Recently, quality problems, such as the collapse of apartment structures under construction, has emerged as a social issue. Although there are various causes of quality problem and the impact of each problem may be different, the problems from the perspective of construction engineer of construction company are investigated. Therefore, this study aim to investigate the adequacy of construction engineer's experience, number of field engineer, timing of engineer deployment at construction sites, etc. in order to resolve quality and safety problems. In this study, a questionnaire survey was conducted targeting construction managers to obtain objective opinions. The results showed that the number of construction engineers in construction companies should be increased and that intermediate construction engineers should be increased to enable practical site management for resolving quality and safety problems. In addition, it was found that there was a need to reduce the number of non-regular employed field construction engineers in construction site and at the same time systematically regulate the number of on-site construction engineers, similar to safety managers and quality managers.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.47 no.2
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• pp.124-133
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• 2024

This study emphasizes R&D as a management strategy for small and medium-sized manufacturing enterprises (SMEs) to achieve competitive advantage and aims to analyze the impact of innovation resistance, prior knowledge, and technological capability on the intention to adopt R&D. The research targeted 403 decision-makers from SMEs that have not adopted R&D. The analysis revealed the following key findings: As a result, both technical capabilities and prior knowledge had a negative effect on innovation resistance. In addition, technological capabilities and prior knowledge had a positive effect on adoption intention, and innovation resistance had a negative effect on acceptance intention. The indirect effects of technical capabilities and prior knowledge both had a positive impact. In addition, we tested whether dependency on partners and trading organizations that accepted R&D had a moderating effect, but it was not significant. The academic implications of this study provide a detailed analysis of how prior knowledge and technological capability affect innovation resistance in SMEs and verify the intention to adopt R&D. The practical implications suggest a direction for small and medium-sized enterprises to reduce innovation resistance in accepting R&D, and companies need to recognize the suitability of R&D and recognize the importance of technological capabilities and prior knowledge in order to reduce innovation resistance.

• Journal of Practical Engineering Education
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• v.16 no.4
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• pp.433-447
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• 2024

This study analyzes the impact of core competencies of technology innovation startups-namely technological development capability, organizational management capability, and digital transformation capability-on financial performance through the mediation of innovativeness. Previous research has focused on the non-financial performance of startups, with a lack of studies examining financial performance, which is a crucial indicator of actual business success. Therefore, an online survey was conducted targeting domestic technology innovation startups, and data from 213 responses were used for the final analysis. The results of the structural equation modeling indicated that technological development capability, organizational management capability, and digital transformation capability positively influence innovativeness. Additionally, higher levels of innovativeness were associated with improved financial performance, and innovativeness was found to play a significant mediating role between core competencies and financial performance. These findings suggest which competencies technology innovation startups should focus on to achieve financial goals.

• International conference on construction engineering and project management
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• 2024.07a
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• pp.1238-1245
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• 2024

The construction industry faces the challenge of providing effective, engaging, and rule-specific safety learning. Traditional methodologies exhibit limited adaptability to technological advancement and struggle to deliver optimal learning experiences. Recently, there has been widespread adoption of information retrieval and ontology-based chatbots, as well as content delivery methods, for safety learning and education. However, existing information and content retrieval methods often struggle with accessing and presenting relevant safety learning materials efficiently. Additionally, the rigid and complex structures of ontology-based approaches pose obstacles in accommodating dynamic content and scaling for large datasets. They require more computational resources for ontology management. To address these limitations, this paper introduces iSafe Chatbot, a novel framework for construction safety learning. Leveraging Natural Language Processing (NLP) and Large Language Model (LLM), iSafe Chatbot aids safety learning by dynamically retrieving and interpreting relevant Occupational Safety and Health Administration (OSHA) rules from the comprehensive safety regulation database. When a user submits a query, iSafe Chatbot identifies relevant regulations and employs LLM techniques to provide clear explanations with practical examples. Furthermore, based on the user's query and context, iSafe Chatbot recommends training video content from video database, enhancing comprehension and engagement. Through advanced NLP, LLM, and video content delivery, iSafe Chatbot promises to revolutionize safety learning in construction, providing an effective, engaging, and rule-specific experience. Preliminary tests have demonstrated the potential of the iSafe Chatbot. This framework addresses challenges in accessing safety materials and aims to enhance knowledge and adherence to safety protocols within the industry.

• International conference on construction engineering and project management
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• 2024.07a
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• pp.343-350
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• 2024

Mobile electroencephalography (EEG) can continuously and objectively monitor construction workers' psychological stress, thereby contributing to enhanced safety and health. Traditional EEG-based stress assessment techniques utilize headset-type devices that cover the scalp, including the frontal area, which is the most relevant brain part to stress. Yet, the invasiveness of such devices may pose a potential barrier to their field application. In response, ear-EEG technology presents a less intrusive alternative for continuous monitoring, potentially overcoming the limitations of scalp-EEG. The temporal regions monitored by ear-EEG hold anatomical and functional significance in the brain's response to stress, suggesting that ear-EEG could effectively detect stress. Despite its advantage, the effectiveness of ear-EEG in stress detection remains underexplored, largely due to the existing literature's focus on frontal brain regions. To address this gap, the authors aim to evaluate ear-EEG's effectiveness in measuring stress and compare it to high-density scalp-EEG. EEG signals were collected with ear- and scalp-EEGs from 10 subjects in a controlled laboratory while they performed the mental arithmetic tasks under time pressure and socio-evaluative threats to induce stress at different levels (high vs. low). Subsequently, the authors performed t-tests and point-biserial analysis to analyze differences between high and low-stress conditions in the most reliable stress biomarkers in literature: high-beta power in temporal regions for ear-EEG, and alpha asymmetry in frontal regions for scalp-EEG. The results indicate that both EEG techniques could effectively differentiate between stress levels, with statistical significance (p <0.001 for both) and moderate effect size. Furthermore, the results demonstrate ear-EEG's comparable effectiveness to scalp-EEG in detecting stress-induced brain activity given the comparable statistical metrics, such as p-value and effect size. This study provides a groundwork for further explorations into leveraging ear-EEG as a practical tool for the early detection of stress, aiming to enhance stress management strategies within the construction industry.

• Korea Journal of Hospital Management
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• v.29 no.3
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• pp.1-10
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• 2024

Purposes: When rehabilitation services are provided remotely using information and communication technologies to patients living at home, there is an advantage in providing rehabilitation services to individuals in their everyday social and physical environment, which can improve functional outcomes and satisfaction. The purpose of this study was to analyze the effectiveness of the pilot project by analyzing the outpatient and inpatient medical use and expenses of patients who participated in the rehabilitation patient home-based care pilot project. Methodology: To analyze the effectiveness of the home-based care pilot project for rehabilitation patients, health insurance claims data from the Health Insurance Review and Assessment Service was used. The subjects of analysis were patients who had undergone major lower extremity joint replacement surgery, including hip, knee, and ankle joint replacement surgery, and patients who had lower extremity fracture surgery, which were the targets of the rehabilitation patient home-based care pilot project. To compare medical use and expenses between patients participating in the rehabilitation patient home-based care pilot project and those not participating, chi-square test, t-test, and multiple regression analysis were performed. Findings: As a result of analyzing the number of medical use cases and expenses of patients who participated and those who did not participate in the rehabilitation patient home-based care pilot project, the average outpatient medical use and outpatient medical expenses per person for participating patients were lower than those for patients who did not participate. The average hospitalization cost per person and the average length of stay per person were also lower than those of patients who did not participate. Practical Implications: Home-based care for rehabilitation patients continues to provide medical services at home, not at medical institutions, and can be expected to reduce readmissions and complications by resolving patients' emergency situations at home or on their own, thereby reducing medical use.

• Asia-Pacific Journal of Business
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• v.15 no.3
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• pp.469-482
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• 2024

Purpose - The purpose of this study is to examine tourists' intentions toward carbon-neutral behavior within the tourism industry. Specifically, it focuses on the tourists, who are the consumers of tourism activities, rather than the perspective of tourism providers. The study investigates the impact of tourists' carbon-neutral tourism behavior, using the Value-Belief-Norm (VBN) theory. Design/methodology/approach - A face-to-face survey was conducted with tourists who visited tourist sites in Busan. As a result, a total of 347 valid responses were collected, which were then used to test the proposed research model and seven hypotheses. Findings - Examining the structural relationships revealed that all seven hypotheses were statistically significant and supported. The three proposed values had a positive impact on the new environmental paradigm(H1,H2,H3). The new environmental paradigm significantly influenced awareness of consequences(H4), which in turn positively affected ascription of responsibility(H5). The ascription of responsibility significantly impacted personal norms(H6), and finally, personal norms had a positive impact on carbon-neutral tourism intentions(H7). Research implications or Originality - Various academic fields, both domestically and internationally, are recognizing the risks of the climate crisis and conducting research related to carbon neutrality. However, in the field of tourism studies, research specifically focused on carbon-neutral tourism remains quite limited. Therefore, this study aims to understand the carbon-neutral behaviors of tourists. Based on this understanding, the study provides practical implications for tourism providers.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.10 no.1
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• pp.57-71
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• 2007

While a concept on biotop or the urgency of its classification systems have been under discussion recently, this study aims to examine outdoor biotop classification systems for environment-friendly community. To this end, the feasibility of creating a biotop in the community and application elements were generated and biotops were classified and categorized. Then, elements that can be applied in consideration of traditional Korean techniques were generated and biotop classification systems and specific components in residential areas were reviewed. As for the result of this study, based on a preliminary draft prepared through literature review, considerations for biotop classification systems were taken into account. Then, based on classification criteria for biotop formats, biotop functions and biotop types, a second-tier classification system was developed. Criteria for biotop formats included surfaces, lines and points while criteria for biotop functions were large cores, small bases, corridors, stepping stones and ecological islands. Criteria for habitat types were divided to include natural forest, developed green areas, lacustrine wetland, palustrine wetland, shrubs, grasslands, linear habitats, vacant plots and practical green areas, which were sub-categorized. As for the biotop classification system, macro-classification divided biotops into three types-space, line and point-based on biotop formats. Meso-classification had five groups and micro-classification had 21 groups based on habitat types. Future studies should focus on the ecological features of each biotop categories generated in this study and their creation and management techniques to find many practical methods to create, protect and manage outdoor biotop for environment-friendly community.

• Journal of Practical Engineering Education
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• v.5 no.2
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• pp.129-137
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• 2013

In this paper, we suggest the roles of IPP (Industry Professional Practice) professor that are necessary for efficient and systematic operation and management of IPP system, which has been implemented by KOREATECH recently under the goal of nurturing industry-oriented talents with practical skills, based on the analysis of actual operational practices of advanced overseas universities and the IPP experiences for 2 years. The roles of IPP professor are largely divided into the following three: IPP manager; student career counselor; educator of IPP educational program. During the initial stage of IPP system, the role of IPP manager is most significant. However, as the system is systematically managed and operated, the role of IPP manager gradually decreases, and the role of career counselor becomes more important. Since IPP system is an educational program that gives credits, IPP professor should also perform the role of educator, including designing experiential learning curriculum and evaluation on educational goal accomplishment.

• Journal of Digital Convergence
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• v.13 no.11
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• pp.417-425
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• 2015

The purpose of this study is to verify differences between Korean and Chinese consumers in consideration, shopping value, the extent of purchase satisfaction and intent to revisit the site when people use social commerce. When Korean and Chinese consumers use social commerce, it was confirmed that they look at four things; economical efficiency, practical, informativeness, and convenience. There are the following results. Firstly, it was found that in the case of using social commerce, economical efficiency as a factor of consideration was higher in Chinese consumers than Korean consumers. Secondly, practical of social commerce concerns the social commerce site's trustworthiness and stability, and also the popularity of the site and ease in which users can use the site. In this, this factor is more important to Chinese consumers than Korean consumers. Thirdly, in the factors of informativeness, which means product information and quality, and buyers comments, there was no confirmed difference between Korean and Chinese consumers. Fourth, in the convenience factor, there was a difference found between Korean and Chinese consumers.