• Journal of Environmental Science International
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• v.31 no.12
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• pp.1089-1102
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• 2022

Recently, urbanization has become a serious issue, as there is imbalance between regions and various environmental problems occur intensively in cities. Therefore, cities all over the world are promoting the Green New Deal and trying to realize carbon neutrality. Accordingly, the European Union is leading the creation of carbon-neutral cities by promoting policies aimed at rapidly realizing carbon neutrality. In Korea, projects such as U-City and Smart City have also been promoted continuously for many years, and recently, the projects Smart Green City and Carbon Neutral Green City have been introduced. Therefore, this study aimed to derive directions and implications for future projects based on policies to address climate change by analyzing the guidelines for the Smart Green City project and the project plans of Gimhae-si and Gangjin-gun, which are the leading projects in the Smart Green City business model and are equipped with an extensive budget.

• International Journal of High-Rise Buildings
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• v.12 no.1
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• pp.35-47
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• 2023

The transport system and its infrastructure are not only the fundamental means of sustaining the operation of contemporary cities, but also important drivers for the evolution of urban form. Rail transit, critical to improving the operational efficiency and optimizing the spatial layout in cities, is one of the critical conditions for high-density areas with limited land and concentrated resources to be compact to take on complex challenges. As a node element of infrastructure, rail transit entrances are the most important points connecting the rail transit system with urban space. Although influenced by urban form, their quantity and location also influence and shape the evolution of urban space form. Based on the development gap of high-density areas in various contexts, focusing on various rail transit stations in Asia, this research analyzes the correlation between rail transit entrances and peripheral high-density urban form in a delicate, dynamic and granular way. The research considers both horizontal and vertical perspectives, in combination with the urban evolution process in time series, to explore the development trend of high-density urban form in Asia from the aspect of correlation, and building a new foundation for research on urban form, suitable for different types of cities.

• Journal of Korean Public Health Nursing
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• v.37 no.1
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• pp.97-110
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• 2023

Purpose: This study sought to determine the effect of the competence of nurses and their, work environment on the quality of nursing service in long-term care hospitals using the Donabedian model as a theoretical framework. Methods: This descriptive investigative study analyzed nursing competency, the work environment, and nursing service quality in a group of 182 nurses directly in charge of patient care at long-term care hospitals in special cities, metropolitan cities, and small and medium-size cities. The data were analyzed using IBM SPSS/WIN 27.0 version. Results: In long-term care hospitals, nurses' competence (r=.674, p<.001) and work environment (r=.444, p<.001) were correlated with quality of nursing service, and the nurses' competence was correlated with the work environment (r=.443, p<.001). The factors affecting the quality of nursing service in long-term care hospitals were competence, the work environment, and the age of nurses. Conclusion: In this study, both competence and the work environment of nurses were observed to be important factors in improving nursing service quality in long-term care hospitals. Therefore, efforts aimed at enhancing these factors are necessary to ensure the high quality of nursing service in these hospitals.

• International Journal of High-Rise Buildings
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• v.12 no.2
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• pp.121-128
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• 2023

Cities cover only 3% of the planet's surface, yet they are responsible for more than 75% of the global emissions. Given the projected urban built area will double by 2060, the carbon emitted from cities will further increase. SOM proposes the Urban Sequoia concept, for buildings that go beyond 'net zero' and absorb carbon from the atmosphere. This concept combines multiple strategies, including the use of an optimised building form with a highly efficient structural system, modularized prefabrication techniques, holistic integration of facade, MEP and interiors' components, bio-based materials, and Direct Air Capture (DAC) technology, to reduce a 40-storey building's whole life cycle carbon emissions by more than 300% over a 100-year lifespan. Calculations of embodied carbon emissions are performed with SOM's in-house Environmental Analysis (EA) Tool to demonstrate the effectiveness of employing Urban Sequoia's design strategies in the design of new buildings using current technologies.

• International conference on construction engineering and project management
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• 2015.10a
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• pp.685-686
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• 2015

The world is currently undergoing an intense urbanization process. The percentage of urban dwellers has never been so high. In 2010, and for the first time, urban population surpassed the rural one, accounting for 51% of global population, and this trend will continue in the forthcoming years. This increment in concentration of population and supporting assets in cities, make their performance a critical issue for world population. Recent events such as Fukushima tsunami and the hurricane Katrina have shown how fragile built environments are and the unpredictability of occurrence and magnitude of the hazards. Such an expansion of the world's urban population, together with an increase in severity and number of hazards and catastrophes, has put under the spotlight the necessity to build cities not only sustainable, but resilient. Decision makers should acknowledge failure as an option, and the importance of developing city resilience. This paper will provide an initial review on urban resilience, definitions and assessment approaches as a first step for decision makers to account for resilience in their decision making process.

• The Journal of Industrial Distribution & Business
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• v.15 no.2
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• pp.1-10
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• 2024

Purpose: The aim of this study is to examine the factors influencing prospects toward for the metaverse in both the public and private sectors, focusing on the perspectives of millennials and generation Z that were rarely examined in previous studies. Research design, data and methodology: This study employed an online survey as its research methodology utilizing factor analysis, ANOVA, and regression analysis to test the formulated hypotheses. Results: The findings of this study reveal that factors such as citizen/customer relationship management, the application of metaverse in both in the public and private sectors. Moreover, the effect size of applying the metaverse to cities on prospects toward the Metaverse was notably higher in the public sector. The effect size of metaverse management for customer relationship management showed a greater impact in the private sector. Conclusions: The results carry significant managerial and policy implications. They shed light on how millennials and generation Z perceive the applications of the metaverse in relation to cities, products, and brands. Notably, the results suggest that application of the metaverse for cities and management of customer relationships for products and brands emerge as key factors influencing the prospect of the metaverse in the public and private sectors.

• International Journal of High-Rise Buildings
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• v.13 no.1
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• pp.33-56
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• 2024

This paper examines China's rapid shift from low-rise to high-rise urban development, focusing on Shanghai as a case study. It provides a detailed analysis of the rapid vertical developments over the past five decades, highlighting gradual and sudden tall building changes. The study also surveys tall building development in the ten "tallest cities" across China, including Hong Kong, Shenzhen, Guangzhou, Shanghai, Wuhan, Chongqing, Chengdu, Shenyang, Hangzhou, and Nanning, while listing the tallest ten buildings in each city. The focus is on the drivers behind these towering structures: globalization, an economic powerhouse, and finance center, urbanization and population density, architectural innovation and ambition, competition and prestige, land availability and utilization, government support and planning, and tourism. The paper critically examines the sustainability of this trend in light of new Chinese policies restricting the construction of high-rise buildings exceeding 500m and 250m in smaller cities due to safety and security concerns. This prompts a reflection on the long-term viability and implications of the predominantly high-rise trajectory in urban development.

• Journal of Platform Technology
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• v.12 no.2
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• pp.45-57
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• 2024

Smart cities are the product of modern urban planning that seeks to innovate information and communication technology and improve the quality of urban life. For the efficient operation of smart cities, data collected, stored, and processed in real time is a key resource. Therefore, data from smart cities collected in various fields must be managed safely, and personal information protection is paramount. In this study, a smart city data security model using blockchain technology was proposed to safely manage smart city data. The proposed model integrates IPFS into the blockchain network to distribute and store data to ensure data confidentiality and integrity, and encrypts data using CP-ABE to efficiently control access to data from users. In addition, privacy was guaranteed while enhancing the usability of data by using Homomorphic Encryption with data access control policies.

• Journal of Urban Science
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• v.12 no.1
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• pp.11-20
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• 2023

In the 1960s, planned cities were developed to solve urban issues aroused from rapid urbanization and industrialization. But as time goes by, planned cities are not playing their existed role. As the paradigm of the city has changed over the years from quantitative expansion to qualitative growth, it is resulted to focus more on urban regeneration rather than development. However, most urban regeneration took place mainly in the self-generated old cities. The purpose of this study is to reveal the validity of a project for urban regeneration in old planned city by examining its necessity and possibility. Focusing on the case of Ansan as representative planned city and Wolpi-dong as area of new deal project for urban regeneration, this study examines the historical background and analyzes the current state of Ansan to identify core strategies of project for urban regeneration.

• The Journal of Information Systems
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• v.33 no.3
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• pp.75-104
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• 2024

Purpose The purpose of this study is to analyze the influence of individual characteristics and household environmental factors on OTT consumption, based on the uses and gratifications theory and family systems theory. It seeks to provide strategic and policy insights by incorporating key user attributes and environmental determinants affecting OTT consumption. Design/methodology/approach This research employs multilevel analysis utilizing data from the 2023 Media Panel Survey. The analysis incorporates multilevel data, combining individual and household levels. The Media Panel data, provided by the Korea Information Society Development Institute, encompasses information on households and their members aged six and above. Findings The findings indicate that individual OTT consumption significantly varies based on household environment. Residents of larger cities demonstrated higher OTT expenditure, whereas those in smaller cities exhibited greater OTT usage. A positive correlation was found between the number of OTT services used within a household and individual OTT usage. Interaction effects revealed that residents of smaller cities concentrated more on specific OTT types such as AVOD and AVOD+SVOD,AVOD+SVOD, leading to higher expenditures. While AVOD preference generally resulted in lower OTT expenditure, it increased with higher household OTT service usage. These results underscore the importance of considering both individual preferences and household environments in comprehending OTT consumption, providing a basis for developing customized media policies and content strategies.