• Proceedings of the Korea Water Resources Association Conference
• /
• 2007.05a
• /
• pp.1464-1468
• /
• 2007

The restoration project of Cheonggyecheon was conducted to creates the refreshing water-friendly environment in the downtown Seoul. It already have passed almost 2 years after restoration. This project changed environment of Cheonggyecheon dramatically, so historic hydrological data became useless. There are not so many hydrological data to manage and control this newly restored urban stream. The main purpose of this study is collecting and analysing the hydrological data of Cheonggyecheon. At first, we analysed the mechanism of Cheonggyecheon discharge using the sewage design maps and some GIS data. We also monitored the water levels and discharges of 5 main points of Cheonggyecheon. Rating curves of these 5 points were derived. There were 249 blocks of water gates which were located at both sides of bank. We also monitored the behaviors of these water gates. Through the these monitorings, some equations were derived to give useful information to the manager of Cheonggyecheon.

• Proceeding of Spring/Autumn Annual Conference of KHA
• /
• 2011.04a
• /
• pp.261-266
• /
• 2011

The purpose of this study was to identify the perception of residents on green home and their green residential life. For this study, a questionnaire survey was conducted and the items consisted of whether green home was perceived and how well green residential life was maintained in 6 types of environments. A total 118 responses of residents living in apartments of Seoul Metropolitan Area were used for data analysis. Using statistical program SPSS Win 18.0, frequency analysis, t-test, One-way ANOVA, and factor analysis was employed. The major findings were as follows: 1) slightly more than half of the respondents were aware of green home, and the vast majority were in favor of the green home policy; 2) most of the respondents carried out guidelines of green residential life, and in particular, green living on air environment was well done, followed by consumption, waste, energy, traffic and water; 3) the six kinds of environments were subcategorized by using factor analysis, and 3 to 5 factors were included in each category of environment. Also, it was found that age, educational level, employment status of respondents, housing tenure and duration were related to the degree of green residential life. In midst of global movement toward sustainability, environmentally friendly living is not optional but mandatory, so it's important to change each individual's value on the relation between people and environment and to facilitate more environmentally conscious behaviors.

• 제어로봇시스템학회:학술대회논문집
• /
• 2005.06a
• /
• pp.2126-2131
• /
• 2005

Interactions of a humanoid with a human are important, when the humanoid is requested to provide people with human-friendly services in unknown or uncertain environment. Such interactions may require more complicated and human-like behaviors from the humanoid. In this work the arm motions of a human are discussed as the early stage of human motion imitation by a humanoid. A motion capture system is used to obtain human-friendly arm motions as references. However the captured motions may not be applied directly to the humanoid, since the differences in geometric or dynamics aspects as length, mass, degrees of freedom, and kinematics and dynamics capabilities exist between the humanoid and the human. To overcome this difficulty a method to adapt captured motions to a humanoid is developed. The geometric difference in the arm length is resolved by scaling the arm length of the humanoid with a constant. Using the scaled geometry of the humanoid the imitation of actor's arm motions is achieved by solving an inverse kinematics problem formulated using optimization. The errors between the captured trajectories of actor arms and the approximated trajectories of humanoid arms are minimized. Such dynamics capabilities of the joint motors as limits of joint position, velocity and acceleration are also imposed on the optimization problem. Two motions of one hand waiving and performing a statement in sign language are imitated by a humanoid through dynamics simulation.

• Korean Journal of Human Ecology
• /
• v.14 no.4
• /
• pp.593-611
• /
• 2005

The purpose of this study is to explore the consumption cultural meaning of Community Currency Movement - a substitute currency institution - through an analysis of consumption behaviors and attitudes of Hanbat-LETS participants, who are recognized as the most active among Korea Community Currency Movements. The analytical method adopted in this study is the participation and observation method, along with the Focus Group Interview. Major findings are as follows: Hanbat-LETS participants experienced the following consumption behaviors and attitudes: economical consumption behavior creating the currency value, sustainable consumption behavior, consumption behavior shared with community, consumption behavior free from the need of competition and ownership, satisfaction from offering one's property, equal status and relationship among members, merry and happy attitude toward life. Community Currency Movement implies the consumption cultural meaning as followings: emergence of alienation through the realization of community society, practice of environment-friendly value, activation of region economy, development of one's ability and means of redemption of unemployment, construction of trustworthy society via trust.

• Journal of the Korea Furniture Society
• /
• v.21 no.1
• /
• pp.1-16
• /
• 2010

Furniture is a medium to interconnect the living space to human, and it is the closest environmental element that limits the functions of the space, defines the style of the living, and adjusts the actions and behaviors of human. Therefore the furniture can be said to be one of the craft arts that reflects the culture and living style as they are according to the periodical, regional, and social stratum characteristics. Within this context, this study tries to suggest new design and living culture that can harmonize with the modern residence living culture and incorporate the traditional varnishing technique with lacquer that had been discontinued. Coming to the modern days, the varnishing with lacquer is getting attention again with its environment friendly characteristics and antibiotic functions, and is being applied to various applications. To inherit and maintain such an excellent traditional culture, I would like to improve the practicality by applying to modern furniture, and to contribute to develop and tell the world about the superiority of our culture.

• Proceedings of the Korean Nuclear Society Conference
• /
• 2002.10a
• /
• pp.155.2-155
• /
• 2002

A visual environment for system analysis codes (hereinafter called "ViSA") has been developed to support code users in their input preparations, code executions, and output interpretations. ViSA provides a more convenient way for base input data generation and modification on a user-friendly basis. It also provides on-line graphical displays to give an in-depth understanding of transient thermal-hydraulic behaviors in nuclear power plants. This paper presents the main features of ViSA.

• Journal of the Korean housing association
• /
• v.21 no.5
• /
• pp.13-22
• /
• 2010

This study has the purpose to reveal the differences of residents' using behaviors of living facilities at 3 complexes. The physical characteristics of the complexes have been investigated by a literature study and field survey. In addition, questionnaires were answered by residents on living facilities using behavior on community environment. The tools of analysis are frequency, percentage, and cross tabulation using SPSS WIN 12.0 program. Followings are the results of the study. 1) The developmental concept of 3 complexes maintained its initial identity. (1) The residence-oriented complex, having wider residential space, had better downtown access and more convenient facilities for daily life. (2) The residence-government mixed complex, constructed with an eco-friendly concept, had wider green and public service space and good downtown access but on the other hand, had less convenience facilities because of a short period from construction. (3) The residence-industry mixed complex, located in sub-urbanity and conceding more land for industries, had poor access to downtown but had more convenient facilities for workers' use. 2) The most frequently visited convenience facilities were shopping facilities, large or small, and banks, and activities were commonly done in the complex or adjacent area. This means it is recommended that the developer of the new complex locate convenience facilities in multi-core concentration types or street types rather than one-core concentration types.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.12 no.3
• /
• pp.231-257
• /
• 2016

Several efforts to replace the use of existing fossil energy resources have already been made around the world. As a result, a new industry of renewable energy has been created, and efficient energy distribution and storage has been promoted intensively. Among the newly explored renewable energy sources, the most widely used one is solar energy generation, which has a high market potential. An energy storage system (ESS) is a system as required. In this paper, the design and implementation of an ESS for the efficient use of power in stand-alone street lights is presented. In current ESS applied to stand-alone street lights, either 12V~24V DC (from solar power) or 110V~220V AC (from commercial power) is used to recharge power in systems with lithium batteries. In this study, an ESS that can support both solar power and commercial power was designed and implemented; it can also perform emergency recharge of portable devices from solar powered street lights. This system can maximize the scalability of ESSes using lithium batteries with efficient energy conversion, with the advantage of being an eco-friendly technology. In a ripple effect, it can also be applied to smart grids, electric vehicles, and new, renewable storage markets where energy storage technology is required.

• Journal of Korea Port Economic Association
• /
• v.25 no.4
• /
• pp.251-280
• /
• 2009

The value of Environment is so high and important that no one can estimate it correctly. In the area of Logistics, Environment protection is very important and keen subject for the present and for the future of this country and people. Environmental logistics, similarly used as Green logistics, means the protection of Nature and Environment and reduces all kinds of factors and behaviors that may destroy and deteriorate current Environment. It also include the preservation of Nature and sustainable development. Environmental logistics aims to save natural resources and to promote reuse of all kinds of materials and to increase the utilization of Environment friendly substitute goods. In this paper the concept and characteristics of Environmental logistics were summarized and described. Also the main previous studies were surveyed. Some of important cases and experiences which were introduced and applied in major countries such as Japan, Hongkong, USA and the case of PHILIPS were summarized and analyzed. With these cases and analysis, this paper suggested some alternatives and countermeasures for the improvement of Environmental logistics in terms of 3 dimensions such as Country, Company and Individual level. And a strategy model for enhancement of the Environmental logistics was suggested and limitations of this paper and future research directions were described.

• Human Ecology Research
• /
• v.58 no.3
• /
• pp.279-298
• /
• 2020

The purpose of this study is to develop home economics educational programs on the theme of 'improving consumer life' for sustainable development. It is a program to enhance the changemaker mindset for responsible production and consumption among the 17 goals of the Sustainable Development Goals(SDGs). The program was developed 8 that to make solar cookers, make household goods from recycled materials, change maker-practice green life, eco-friendly journal 1, plastic warnings, design alternatives for disposable products, change maker-efforts and eco-friendly journal 2. The developed program was validated 3 times by a group of experts and students. This program has the following features. First, the Home Economics Education(HEE) program under the theme of 'Improving consumer life' for sustainable development are carried out at the stage of change-maker education with project-based process. It can improve students' collaboration skills, self-directed skills, communication skills and problem solving skills. Second, eight programs can increase understanding and interest in sustainable development, and learners are interested in social issues. This program can raise learners who play an active role in solving social problems by increasing their interest and interest in the class, free from the form of passive classes. Third, the HEE programs under the theme of 'Improving consumer life' for sustainable development are meaningful in that they are closely related to students' lives and encourage them to practice in their own lives. Fourth, since the program is well-suited to the present time and includes content elements for sustainable development, it can induce changes in learners' perceptions, attitudes and behaviors.