• Journal of Biosystems Engineering
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• v.25 no.6
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• pp.481-488
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• 2000

This study was initiated in order to find alternative fuel substituting for light oil the most common fuel for heating greenhouse. The tire oil used in this research was produced by pyrolysis process, one of the final products besides steel string and carbon black in which waste tires as a form of chopped pieces broken by shredding machine are heated up to 200~30$0^{\circ}C$ with maximum restraining of oxygen supply. In order to justify light oil equivalent qualities in tire oil combustion characteristics were defined in the way of comparing kinetic viscosities in the wide range of temperature flame sizes and exhaust gas components in the various combustion conditions. We found that kinetic viscosity of tire oil was lower than light oil by 1 to 2 cSt in the temperature range showing better flowing mobility in the fuel line of the burner and no significant difference in flame size between the two oils in the all combustion treatments. However much more NO and SO$_2$ were detected from the exhaust gases of tire oil than light oil combustions. In fact tire oil contains more nitrogen and total sulfur, by 25 times and 40 times respectively than light oil according to the composition analysis. Tolerable limit for SO$_2$discharge amount defined by the national air pollution standards is under 540ppm so tire oil combustion satisfies the requirement though. It is desirable if sulfur and nitrogen filtering process shall be added in the tire oil production line. Except the exhaust gas components all greenhouse heating qualities of tire oil including hot air temperature are very identical to those of light oil.

• Smart Media Journal
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• v.1 no.4
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• pp.79-83
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• 2012

In software development process, increasing the size of project(scaling up) is not a same problem as scaling up the parts of small project. Scaling up a project should accompany the communications, and cost, productivity, qualities, development activity, methodologies etc should be considered with it. In this paper, the effective usage of the important elements are discussed in order not to fail to scale up a project.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2012.05a
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• pp.139-140
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• 2012

Facility Management (FM) is a project phase to maintenance and to increase the qualities of product which is planned on the design phase and ensured on the construction phase. In addition, since the approximate time occupied in operation and maintenance phase is the longest from construction project as total approximate cost is about 85% of whole the project, it could be managed and realized primarily. The information of facility is not created on the specific point of project, but it might be created on the whole process of subject project widely. Thus, as the information could not be lost and it can be delivered into computer aided facility management system, it is necessary to manage the facility information. This paper proposed the necessities and the problems of BIM-based data interoperability on the Korean construction projects.

• Journal of the Korean Home Economics Association
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• v.42 no.6
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• pp.123-136
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• 2004

The purposes of this study were to investigate the qualities of infant day-care centers and the caregivers' interactions with infants. Forty-six day-care centers from Seoul, Daejeon, and Daegu were enrolled in this study. Two kinds of methods were used for data collection; one was the Assessment Scale for Infant/Toddler Care Center developed by Choi and the other was the Qualitative Rating Scale for Caregiver used in the NICHD Early Child Care Project. Frequency, percentile, Crollbach's, one-way ANOVA, and Pearson's correlation were calculated for data analysis. Qualities on 5 factors of infant day-care centers were ranged from 3.44∼4.35, the highest with health managing and the lowest with support system in the Likert 5-point scales. Sensitivity, developmental stimulation and positive regard to child, which are the caregiver's positive interactions with infants were rated minimally or usually characteristic. In addition, intrusiveness, detachment, negative regard to child and flatness, which are negative interactions with infants were rated never or minimally characteristic. Finally, some suggestions for good quality and facilitation of infant care were made.

• Archives of design research
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• v.15 no.3
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• pp.93-102
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• 2002

The changing pattern of living and communication, combined with wireless technologies has given rise to more fluidity between spaces and relationships. Despite this, the way we use technology and the qualities of product and service are limited. For example, ON or OFF is like BLACK or WHITE, it presents a harsh distinction This severity in definition can make me uncomfortable when using products. The aim of this project is to improve the use of a product's functions and Qualities. As an example, the switch button has limited the possible interaction of a product. even each function is different. 1 intend this study is to imbue the switch with a greater freedom of interpretation. What will happen If I create a journey in between on and off\ulcorner For instance, time, pattern, state, rhythm and so on are analogue properties of a switch. The playful, spontaneous, and enjoyable behaviour of a switch will be able to bring other qualities of function and service. The switch will then be able to be an object with more human qualities, not simply an on and off button.

• Korean Institute of Interior Design Journal
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• v.17 no.4
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• pp.50-57
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• 2008

Futurism can be defined as a movement in the early 20th century founded by Italian writer Marinetti apposing to traditional and conservative art. Though its life as a movement seemed to be fairly short, it can be said that the very essence of futurism can be seen whenever there is radical change in our society such as the information revolution. Even though the information revolution has brought us many positive improvements our life including art and design, lately there are also discussions about the defects in our life. Ron Arad may be considered as a designer and artist whose intentions and expressions are very similar to those of futurism. This study investigates concepts, meanings, and expressions of futurism in art history and then those of Ron Arad's shown in interior design projects. By examining selected project examples the author defined that rather than optimistic viewpoints, avant-garde and technological aspects were found to be strong in symbolic qualities. As for expressive qualities, dynamism and continuity appeared to be Ron Arad's unique expressions, very similar to those of futurism on the other hand, purity and temporarily were found less. It is hoped that the study may be a help in better understanding futuristic qualities of Ron Arad, one of the radical and experimental designers of our age.

• The Journal of Korean Association of Computer Education
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• v.10 no.1
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• pp.31-40
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• 2007

The qualities that are commonly necessary in the occupation life and the abilities to cope with the changing job-world are getting more important. This study proposed the project-learning model and applied it to the homepage-developing learning of the computer course in the commercial high school. Then, this study conducted the nonrandomized controlgroup pretest - posttest design in order to verify how the model influence Information-skills of Key-competencies. At the posttest, the difference between the traditional learning group and project-learning was meaningful. Therefore, It can be confirmed that project-learning was more affirmative in enhancing information-skills of the students. Through this study, it can be concluded that the instructional method is very important and we propose there be a lot of studies about the instructional methods enhancing the various Key-competencies.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.42 no.3
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• pp.232-241
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• 2019

Stakeholder management in construction projects is an important factor in project performance creation. The purpose of this study is to verify the effect of the recognition of the importance of the quality influence factors among the stakeholders of the construction project on the perceived quality and the project performance. The impact of the project management methodology on the project performance has been actively researched, but there is little research result on the project stakeholders. The projects to be researched are apartments and buildings that have been completed within the last five years of domestic large construction company. The method of survey is to measure the consensus of the importance of the quality influential factors among the three parties such as the ordering party, the design supervisor and the constructor, and confirm whether the agreement affects the quality of the actual project. Finally, the research model was verified by surveying the satisfaction of the client on the final product. The results are as follow. The degree of agreement on the importance of quality influential factors among stakeholders has a significant effect on perceived quality. In the relationship between perceived quality of influence factors, organizational (support) quality influenced technological quality and managerial quality, and technological quality and managerial quality also have significant influence on resource quality. The results of analysis showed that perceived quality of resources strongly influenced project performance. The remaining three experienced qualities also significantly affect project performance.

• Journal of architectural history
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• v.15 no.3
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• pp.119-135
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• 2006

This study based on the hypothesis which the spatial qualities in the Mies's early works are not extinct but potentially immanent in his latter works. In Mies's early works, destruction of outline, centrifugal extension of fluid space, and asymmetry are distinctly showed. These qualities probably revert to the indefiniteness of space. In Mies's latter works, however, these dynamic qualities are disappeared. Geometrically precise outline and exact grid structure represent universal space derived from zero-degree pure box. These qualities probably revert to tile definiteness of space, characterized by the unmovable emptiness. Although Mies works vary in external form, his expression technique of space reveals continually both the qualify of definitive and indefinitive space. For example, in the Museum for a Small City(1942) unbuilt project. elements defined by the perspective are fixed and static, but elements defined by the collages are floated and dynamic. The former reigns over the realized buildings of Mies, while the latter seems to be latent in terms of Schein which transcends reality. If we can penetrate this point, it's possible to read the other side of Mies' architectural works, distinct from both the canonized interpretation and the excessive criticism. Point is that later works of Mies must be understood as interplay of universal space appeared as phenomenon and flowing elements latent in. Architectural space of Mies keeps a distance with actual space through latent manner of being while preserves the empirical actuality It provides us with an occasion which appears only in an instant, in which even the ordinary things reveal its poetics.

• Journal of Korean Society of Archives and Records Management
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• v.9 no.1
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• pp.121-150
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• 2009

This study reconfigures meanings of photographs for appearing of visual culture paradigm. By this, a strategy model for digitization could establish which needs when photographs are digitized. A strategy model for digitization is based on essential issues when digitized. Also, applying the project life-cycle and digitization chain model, the processes are suggested as a general reference model. Broadly, Three steps, Pre-project step, Production step, Post-project step, are divided and Specifically, Four steps, (1) Establishment and management of the whole project plans (2) Selecting the target for the digitization of photographs (3) Digital Conversion and Quality Control (4) Preservation and access, are separated. Substantial digitization strategy of photographs is built based on chain model of digitization to guarantee qualities of creating digital objects. Each step is constituted with basic processes, details and checklists.