• Title/Summary/Keyword: Sustainability and the Environment

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Effect of environmentally friendly materials on steel corrosion resistance of sustainable UHPC in marine environment

  • Tahwia, Ahmed M.;Elgendy, Gamal M.;Amin, Mohamed
    • Structural Engineering and Mechanics
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    • v.82 no.2
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    • pp.133-149
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    • 2022
  • This study investigates the resistance of sustainable ultra-high performance concrete (UHPC) on steel reinforcement corrosion. For enhancing the sustainability of UHPC, concrete mixes were prepared with ordinary Portland cement main binder, and mixes with moderate to high percentages of blast furnace cement (CEM III), fly ash (FA), and slag cement as partial replacements of the full quantity of the used cement. Linear polarization resistance technique was employed to estimate the electrochemical behavior of the concrete specimens. Results showed that the compressive strength and the resistance of steel to corrosion in marine environments can be enhanced by improving the sustainability of UHPC through incorporation of CEM III, FA, and slag cement. FA replacement of up to 50% with the addition of 15% SF content produced better compressive strength and steel corrosion resistance than slag cement whether with the use of ordinary Portland cement or blast furnace cement as the main binder.

Considerations of Sustainable High-rise Building Design in Different Climate Zones of China

  • Wan, Kevin K.W.;Chan, Man-Him;Cheng, Vincent S.Y.
    • International Journal of High-Rise Buildings
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    • v.1 no.4
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    • pp.301-310
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    • 2012
  • Buildings, energy and the environment are key issues that the building professions and energy policy makers have to address, especially in the context of sustainable development. With more tall buildings constructed in China, the impact on energy consumption and carbon emission would be great from buildings (2% increase of carbon dioxide annually between 1971 and 2004). The imperative was to investigate the building energy performance of high-rise in different climate zones and identify the key design parameters that impose significantly influence on energy performance in sustainable building design. Design implications on glazing performance, sizing of the ventilation fans, renewable energy application on high-rise building design are addressed. Combination of effective sustainable building design strategies (e.g., building envelope improvement, daylight harvesting, advanced lighting design, displacement ventilation, chilled ceiling etc.) could contribute more than 25% of the total building energy consumption compared to the international building energy code.

A Evaluation and Planning Method of Ecological Sustainability of Residential Development Based on the Concept of Environmental Carrying Capacity (환경수용능력개념에 기초한 주거단지의 생태적 지속가능성 평가 및 계획기법)

  • Lee, Byeongho
    • KIEAE Journal
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    • v.12 no.2
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    • pp.3-14
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    • 2012
  • A sustainable evaluation and planning method shall have an integrative methodology for analysis of interrelationship among environmental resource uses and natural conditions during the planning process. However, there are few methods for understanding or achieving sustainable planning in residential development projects for most planner/architects. Therefore, the purpose of this research is to investigate theories of the concept of environmental carrying capacity based on the ecological view, to propose a sustainable planning method for evaluation and planning of environmental sustainability in residential development projects, to analyze interrelationship of selected environmental resources to represent an environmental carrying capacity for a residential development project based on the proposed sustainable planning method. Finally, through the case studies of a high-density housing project located near Seoul Metropolitan area, the existing case and a sustainable case were analysed by the proposed method.

How to Keep the Sustainability of the Landscape Resources of the East Coast in South Korea

  • Shin, Seung-Choon;Park, Yong-Gil
    • Journal of Environmental Science International
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    • v.13 no.2
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    • pp.117-127
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    • 2004
  • The purpose of this study is to present the conditions and methods for keeping the sustainability of the landscape resources of the East Coast of Gangwon province, the Republic of Korea by investigating the landscape resources management in the area and pointing out its problems. The unit of analysis in this study is four cities and two counties located along the national road route seven in Gangwon province. The classification and characteristics of the landscape resources in this area was analyzed by a literature review, and we surveyed the tourists visiting the area and statistically analyzed the data in order to examine their satisfaction with the landscape resources management and make recommendations. The problems of the landscape resources management are: 1) the disturbance of the persistence of life by reclamation, the population reduction in the ecosystem due to the overload in environmental capacity, and the severance of space between land and water. 2) the reduction of the benefits from indirect experience by interfering with the conservation of fluxes --- the manipulation of horizontal arrangement of the landscape resource, the visual disturbance by the construction of high-storied buildings, and the disharmony between the color/image and the environment. The means for keeping sustainability of the landscape resources include the regulations of development and use, the change in the recognition of the value of landscape resources and the moral system, and the improvement of resource management skills.

Issues in the Current State of Environmental Management Education, the Nexus of Environmental Education and Management Education (환경교육과 경영교육의 접점, 환경경영교육의 현황과 과제)

  • Yun, Sun-Jin;Lee, Joo-Byung;Won, Kil-Yeon;Youn, Yeo-Chang
    • Hwankyungkyoyuk
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    • v.25 no.1
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    • pp.25-34
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    • 2012
  • Following the UN Conference on Environment and Development held in Rio de Janeiro, Brazil, in 1992, a number of companies began to incorporate the concept of Environmental Sustainability into their business activities. Soon after this, interest in business sustainability within the academic world began to grow and a number of universities in Europe and North America decided to develop environmental management education-related materials and curricula under the support from their respective govemments and private companies. Starting in 1996, a wide-range of environmental management education programs also began to appear in several Korean universities. However, in contrast with the gradual evolution of environmental management education into a single study field internationally, environmental management education in Korea has not become fully specialized, nor has it developed in a systematic manner. In order to enhance and facilitate domestic environmental management education in Korea, universities must put more effort into differentiating environmental management education courses from regular environmental courses through the development of curricula related to business management. The business world has an immense impact on the environment and international environmental regulations are steadily becoming stronger. In this light, environmental education programs need to extend their sphere of study not only to the spread of knowledge and sensitivity towards the environment among members of the general public, but also train businessmen to have an understanding of how their actions impact the environment.

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Institutional Arrangement and Policy Context Underlying Sustainability Actions in the U.S.: Lessons for Asian Regions

  • Hwang, Joungyoon;Song, Minsun;Cho, Seong
    • Journal of Contemporary Eastern Asia
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    • v.19 no.1
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    • pp.59-83
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    • 2020
  • This paper examines the actions and the factors driving those actions to reduce energy consumption and enhance energy efficiency taken by United States cities. While not much empirical evidence is available on why governments pursue practical sustainability actions, we attempt to shed more light on this important topic by empirically identifying factors that contribute to concrete actions toward sustainability policies. We adopt political market theory as a basic theoretical framework with policy-making applied to city energy consumption. Using the 2010 ICMA (local government sustainability policies and program) data, this study expands the focus of analyses to evaluate the effect of the form of government on energy consumption and energy efficiency by using multiple regression analysis. The findings show that at the city level, the mayor-council form of government are negatively associated with governments' efforts to reduce energy consumption. However, cities with at-large elections and municipal ownership are more likely to adopt sustainability actions. We also find that a large-scale economy has significant effects on the effort to reduce city energy consumption and improve energy efficiency. This shows that environmental policies are directly connected to locally relevant affairs, including housing, energy use, green transportation, and water. Thus, local level administrators could take an executive role to protect the environment, encourage the development of alternative energy, and reduce the use of fossil fuel and coal energy. These efforts can lead to important environmental ramifications and relevant actions by municipal governments.

The Sustainability of Korean Management in Global Market: Competitive Strategy and Performance in Korean ICT Industry

  • Kwak, Kyu Tae;Cheon, Youngjoon;Lee, Bong Gyou
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.3
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    • pp.1344-1361
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    • 2016
  • ICT contents market is globally considered as an industry of high added value, where sustainability is accomplished through stories that cover wide range of consumers. However, the need for long-term internationalization strategy is growing as countless number of applications and games has pushed the local market to its limit. Thus, this research explored on the industrial characteristics and the internationalization of ICT contents firms through acquisition of competency. Based on Resource Dependence theory, the authors studied how pursuit of legitimacy and autonomy functioned in the expansion process of ICT contents firms. A survey analysis of 212 key decision makers of Korean ICT content firms were performed, to reveal that resource environment and interdependence must undergo a thorough consideration.

Practitioners' Awareness on Application of Environment-friendly Interior Finish Materials in Apartment Houses (실무자의 공동주택 친환경 마감재 적용에 대한 의식조사 연구)

  • Lee, Ji-Soon;Yoon, Chung-Sook
    • Journal of the Korean housing association
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    • v.25 no.2
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    • pp.121-130
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    • 2014
  • This paper provides a social knowledge for pragmatic application guidelines of the interior finish materials within apartment houses, based on both the awareness of practitioners and as it applies to the realities. For this purpose, a series of the questionnaires survey on the awareness of interior finish materials in recently-constructed and remodeled apartment houses was performed, which has extended its probe into the awareness of architectural practitioners. The questionnaires asked practitioners how much they desire sustainable finish materials and the difference in various parties were analyzed and compared, formulating the pragmatic solution in the determination of interior finishes. Comparative analysis of the awareness of construction specialists, interior designer, architectural environmental researchers on environment-friendly finish materials showed that all parties were right to recognize the significance of sustainability in interior finishes. Practitioners believed that occupants must bear the additional expense for the environment-friendly finish products. Also, the results tell that the amount used of environment-friendly products increases as expertise on sustainability in interior finishes rises.

The Effect of Carbon Emission Disclosure on Firm Value: Environmental Performance and Industrial Type

  • HARDIYANSAH, Mohammad;AGUSTINI, Aisa Tri;PURNAMAWATI, Indah
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.1
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    • pp.123-133
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    • 2021
  • This research aims to examine the effect of carbon emission disclosure on firm value and to reveal environmental performance and industrial type as the moderating variables. This study used 82 samples of companies listed on the Indonesia Stock Exchange (IDX) and receiving awards in the Indonesian Sustainability Reporting Award (ISRA) in 2014-2018. This study used a multiple linear regression analysis to test the hypotheses. The results showed that carbon emission disclosure had a positive and significant effect on firm value as carbon emission disclosure is a form of corporate concern on environment positively responded by the market and becomes the basis for investors to make their considerations in assessing the company sustainability. Besides, environmental performance and industrial type can strengthen the influence relationship of carbon emission disclosure on firm value since environmental performance was assessed based on ISO 14001 certification ensuring that the company has tried to preserve the environmental sustainability by creating a good environmental management system. Moreover, companies categorized into high profile industrial type have tried to change their unfavorable image and avoid lawsuits by performing carbon emission disclosure to gain positive responses from the market.

How to Keep the Sustainability of the Landscape Resources of the East Coast in South Korea

  • Shin, Seung-Choon;Park, Yong-Gil
    • Proceedings of the Korean Environmental Sciences Society Conference
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    • 2003.11a
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    • pp.192-197
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    • 2003
  • The purpose of this study is to present the conditions and methods for keeping the sustainability of the landscape resources of the East Coast of Gangwon province, the republic of Korea by investigating the landscape resources management in the area and pointing out its problems. The problems of the landscape resources management are: 1) the disturbance of the persistence of life by reclamation, the population reduction in the ecosystem due to the overload in environmental capacity, and the severance of space between land and water. 2) the reduction of the benefits from indirect experience by interfering with the conservation of fluxes -- the manipulation of horizontal arrangement of the landscape resource, the visual disturbance by the construction of high-storied buildings, and the disharmony between the color/image and the environment. The means for keeping sustainability of the landscape resources include the regulations of development and use, the change in the recognition of the value of landscape resources and the moral system, and the improvement of resource management skills.

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