• Asia pacific journal of information systems
• /
• v.22 no.3
• /
• pp.29-52
• /
• 2012

As sustainability has grown into a key global issue, more and more information technology (IT) products have adopted these concepts to attract consumers. However, these products potentially require consumers' physical or economic sacrifice at least for a short period of time. Therefore, the reason of consumers' adoption of sustainable IT products cannot be fully explained by the two traditional values: hedonic and utility values. However, expectancy-value theory, which has been used to explain the relationship between value and behavior, still takes hedonic value and utility value into consideration. The purpose of this study is to suggest an amended expectancy-value theory to better explain the adoption of IT products that consider sustainability. For this purpose, two social values-the normative value based on the Schwartz's model of moral norm and the eudemonic value of the Stoic philosophy-were added to the individual values to examine which value particularly influences the adoption of sustainable IT products. In addition, the moderating effect of perceived sustainability between four values and adoption of sustainable IT products was verified.

• Journal of the Korean housing association
• /
• v.21 no.6
• /
• pp.99-108
• /
• 2010

This study investigated the environmental indices in environmental administration, and to presents how to develop a sustainable environmental evaluation index. The index should be used to evaluate composite plans in the environmental aspects as well as means for setting goals of basic plans for the environment and its management. Specifically, the goals of composite plans are to check environments and land use frame, and evaluate individual measures (public projects). Environment policies are required to be 'a policy creating a clean environment' from 'a policy of environment regulation'. For the organization of a basic framework of environment policies, five topics are needed to be considered, such as the clarification of the idea of environment, establishment of environment regulations, environment management plan, plan to support civilian's action, and local government's efforts for the global matters of environment. For the amenity environments, people should expand their environmental behavior based on their voluntary intentions in transformation of personal life styles, projects with less load on the environment, development of environmentally-friendly projects with consideration for their impact on the earth. This study suggests that they should put more efforts into the development and implementation of useful environmental indices which effectively analyse the regional character to protect the natural ecology and create an sustainable environment with wide coverage.

• Advances in concrete construction
• /
• v.9 no.1
• /
• pp.83-92
• /
• 2020

The use of spliced reinforcing bars in sustainable concrete members to manage inadequate bars length is a common practical issue which is may be due to some limitations. The lap splicing means two bars overlapped in parallel with specified length called the splice length in order to provide the required bond between the two bars. The bond between sustainable concrete and spliced steel bars is another important issue. The normal strength sustainable concrete specimens of sizes 1700×150×150 mm with tension reinforcement lap spliced were selected according to testing device length limitations. These members were designed to fail in flexure in order to investigate the lap spliced tension bars effect. The selected lap spliced tension bars were of 10 mm size with smooth and deformed surfaces in order to investigate the surface nature accompanied with the splice nature. The sustainable concrete mechanical properties and mix workability were also studied. This study reveals that the effect of number of spliced bars on the response of beams reinforced with smooth bars is found to be more obvious than deformed one. Finite element modeling in three dimensions was carried out for the tested beams using ABAQUS software. A parametric study is carried out using finite elements on considering the following parameters, concrete compressive strength, load type and opening in cross section (hollow section) for weight reduction purposes.The laboratory and numerical results show good agreements in terms of ultimate load and deflection with an average difference of 10% and 15% in ultimate load and deflection respectively.

• Hwankyungkyoyuk
• /
• v.18 no.2 s.27
• /
• pp.23-30
• /
• 2005

The purpose of this study is to develop School Agenda 21 to activate environmental education at schools. In detail, this study is intended to develop operating procedures, major issue areas or domains, and instructions on the preparation for School Agenda 21. School Agenda 21 means the action plan which students, teachers, parents, and other concerned parties (including office of education, local municipal bodies, and NGOs) write under agreement with respect to their respective roles in order to activate environmental educations oriented toward sustainable development. The results of this study are as follow. First, the operating procedures for School Agenda 21 consist of seven steps; organization, diagnosis of problems, setup of targets or objectives, development of codes of behavior, system establishment, practices and reviews, and evaluation and feedbacks. Second, major issue areas for School Agenda 21 are classified into six; school management, class operation, independent subject activity, separate subject activity, non-subject activity, and external relations of school. Third, instructions of the preparation of School Agenda 21 address these 10 concepts; balance, unification, continuity, daily routine, linkage, environmental justice, participation, peculiarity of schools and classes, regional peculiarity, and concreteness, which consider 7 principles for environmental education, levels of learners, regional features, and concreteness. School Agenda 21 developed from this study converts existing environmental education toward sustainable development environmental education, and developed for the purpose to activate school environmental education, but ultimate purpose of this study are realizing sustainable society, sustainable future to realize education for sustainable development. So School Agenda 21 is expected to important performance way making possible Local Agenda 21, National Agenda 21, Agenda 21 as if education, public recognition and discipline contents of the 36 chapter of Agenda 21.

• Korean Journal of Child Education & Care
• /
• v.18 no.1
• /
• pp.147-168
• /
• 2018

The purpose of this study is to apply sustainable development education activities for young children and to verify the effects of them. To do this, 40 5-year-old children of day care centers in P city, Gyeonggi-do were grouped the experimental group(11 male, 9 female) and the controlled(11 male, 9 female). The children in the experimental group had taken the 16 activities based on the sustainable development education for 8 weeks. The results of this study are as follows. First, the children in the experimental group shows the increase of the score in the whole subconcept of the care behavior, which means that the activities in this study are effective for children's care behaviors. Second, the children in this study shows the increase of the community consciousness scores, which means that the activities executed in this study are effective for children's community consciousness. Third, the children in the experimental group in this study shows the increase of the score of consumer behaviors, which means that the activities formed in this study are efficient for young children's consumer behaviors. This study implies that the activities for sustainable development education have a positive effect on young children's education for sustainable development.

• Korean System Dynamics Review
• /
• v.5 no.1
• /
• pp.5-33
• /
• 2004

This study explores how agents would make decisions responding to control mechanism in contractual relationship of their firm. Focusing on agent's averse behavior against control, system dynamics model for agent's opportunistic behavior is developed in view of agent theory and control theory. This SD model shows that control mechanism by contracts doesn't always play a positive role on corporate decision-making process and Control, especially in the over-controlled contracts, often makes a paradox accelerating agent's opportunistic behavior unexpectedly. This paradox provides us both theoretical and practical implications for the relationship between control mechanism and autonomous behavior for sustainable corporate management.

• Korean Journal of Organic Agriculture
• /
• v.21 no.4
• /
• pp.589-600
• /
• 2013

The Purpose of this paper is to analysis on consumer's purchasing behavior and intention of local food. To analysis consumer's purchasing behavior, a series of homemaker surveys were conducted. The sample size of the survey is 416 respectively. As a survey result, consumer's purchasing behavior shows that purchasing ratio of local food and buying place is various type. By decision tree model analysis showed that consumer's purchasing intention is enough to establishing local food system in region. Therefore, strategies for regional consumption are needed expression of the place city and county of origin, diversification of purchasing item and buying area, and sustainable improvement for safety and trust on local food.

• KIEAE Journal
• /
• v.12 no.4
• /
• pp.59-69
• /
• 2012

In order to create humanitarian living environment with sustainable ecological environment, urban regeneration project has been implemented recently seeking diverse methods for residents'participation stressing the process of communication with the residents changing from the existing one way planning by limited number of experts. Particularly, it is essential to develop systematic tools to promote the voluntary and positive participation of the residents because residents have to perform as the master of urban streetscape design project that requires sophisticated knowledge and experience and also because the residents have to function as sustainable maintainers and managers of their streetscape. This study intends to identify the organizational structure and major contents of design guideline as a tool to support the voluntary and positive participation of the residents in streetscape maintenance. For this purpose based on the structural system and characteristics of Chicago streetscape design guideline that was developed as tool for residents' participation, efforts were made to set up framework of design guideline for sustainable streetscape project with the users' participation with their overall understanding and trust. In detail, the author studied the resident participatory process for sustainable maintenance and management in a long term landscape project and the principle and theories of design planning for streetscape that supports the utilizing behaviors of the users, and how this information should be linked and organized to form the structure and contents of design guideline. As a tool supporting residents' participation and helping the residents perform the responsible function as sustainable maintainers and managers of their streetscape through social maturity with ontological sense of masters of their local community as they experience the gradual processes of their streetscape maintenance project, streetscape design guideline has its meaning in the efforts that tried to achieve deep participation of the residents through researches converging the two academic sectors of urban architecture and social psychology.

• Journal of Radiation Protection and Research
• /
• v.34 no.1
• /
• pp.15-24
• /
• 2009

The effect of low doses of ultraviolet (UV) irradiation on morphology changes of cell has been studied based on the observation of the cell length. It was shown that UV-irradiated cell has different behavior in comparison with non-irradiated cell. From the histogram of cell-length distribution, it was confirmed that cell cycle of non irradiated cell was 28 hours, and that cell cycle of irradiated cell with dose of $20\;Jm^{-2}$ was delayed (39 hours), while irradiated cell with $40\;Jm^{-2}$ and $60\;Jm^{-2}$ did not divide and kept growing continuously. It was supposed that in case of $20\;Jm^{-2}$ of irradiation dose, the cell cycle was delayed because the checkpoint worked in order to repair DNA damage induced by generation of pyrimidine dimer, reactive oxygen species and so on. It was also supposed that in case of $40\;Jm^{-2}$ and $60\;Jm^{-2}$ of irradiation dose, overgrowth was induced because the checkpoint was not worked well. The morphology of overgrown cell was similar to that of normally senescent cell. Therefore, it was considered that cell senescence was accelerated by UV irradiation with irradiation doses of $40\;Jm^{-2}$ and $60\;Jm^{-2}$.

• Journal of Forest and Environmental Science
• /
• v.37 no.1
• /
• pp.69-78
• /
• 2021

This study aims to verify a difference between the years 2014 and 2019 of Uiryeong-Gil, which is operated by the Visitor-Reservation System, in terms of the cognition of system, operational effectiveness, and behavioral intention. The analysis is as follows. First, among the overall cognition of the Visitor-Reservation System, the satisfaction from - prevention for safety for accident, expansion to other parks, number of visitor restriction, and satisfaction with reservation method - increased compared to 2014. Second, among the effects of the Visitor-Reservation System operation, satisfaction shows differences in year-to-year levels in terms of resource protection, resource damage mitigation efficiency, natural experience opportunity, comfort of visit-environment, and prevention of illegal activities. Third, the analysis of the differences in the behavior of the Visitor-Reservation System showed that the satisfaction of visitors, revisit intention, and overall satisfaction differed per year. The results of this study are meaningful in that the Visitor-Reservation System is no longer the restriction, but the change in cognition for the protection of ecosystems and sustainable visiting in order to expand the Visitor-Reservation System into a sustainable policy.