• KIEAE Journal
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• v.10 no.1
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• pp.97-107
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• 2010

Although aspiration towards quality of life and holistic health has been growing faster in our modern society and the affordance of health in built environment has been more acknowledged, there has been hardly any development on built environment planning and design theory that can be comfortably and confidently used in creating built environment to promote holistic health. Thereby, this study sets out to experimently formulate a composite theory that explains the relationship between health and built environment. The main methodology of this study is literature review and analysis. Theories that have been applied in other similar fields were chosen to be analyzed by health related perspectives and graft those theories onto holistic health viewpoints to compose a comprehensive theory. Selected theories that were considered useful to be analyzed were Lawton's Environment Press Theory, Carp & Carp's Complementary & Congruence Theory, Valins' Activity-based Design Criteria Theory, Atchley's Continuity Theory, Murtha & Lee's User Benefit Criteria Theory, and Alexander's Pattern Language Theory. Characteristics of these theories were compared by their abstractness and concreteness, and the range of application, and analyzed by a holistic health perspective. Then, these theories were comprehensively structuralized and synthesized as a built environment for health theory. This study has its significance in providing a base to develop healthy built environment research further as it introduced a conceptual framework which explains spatial elements in the health functionality point of view.

• Korean Institute of Interior Design Journal
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• v.19 no.1
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• pp.63-74
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• 2010

The purpose of this research aims to retrieve the communication which is the essential publicness in the built environment design and the self-management which is the original value in terms of sociology. To examine this, the way in which the characters of the design of the publicness have been changed will be concentrated on in the public area since 1980s, Particularly, this research has been focused on the Second modernity design which is against the aggressive utopia - oriented modernization and Reflexive Modernization which has been mentioned by Anthony Giddens, Ulich Beck, and especially Scott Lash. Also, to understand Reflexive Modernization, the realism art in the view point of the objective recognition of modernity and identity emphasized by Scott Lash will be examined. Through the analysis of the Nene Sachlichkeit which is a part of the realism art, how the reflection of the design can be the function of the design will be addressed and some examples will be analyzed in terms of communications and self-education in the design of the publicness. Thus, Contemporary Built Environment Design features are categorized into universality, objectivity, and rationality; it reaches that the past Neue Sachlichkeit meets the spirit of art; it concludes that the efforts of the reflection of the modernity, intensity and development in design are the challenges for the purpose of the design of the publicness.

• Journal of the Korean Institute of Educational Facilities
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• v.21 no.3
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• pp.29-32
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• 2014

• Transactions on Electrical and Electronic Materials
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• v.18 no.5
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• pp.257-260
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• 2017

In this paper, we present the design of a 4.5 V low dropout (LDO) voltage regulator implemented in the 130 nm CMOS process. The design uses a two-stage cascaded operational transconductance amplifier (OTA) as an error amplifier, with a body bias technique for reducing dropout voltages. PMOS is used as a pass transistor to ensure stable output voltages. The results show that the proposed LDO regulator has a dropout voltage of 32.06 mV when implemented in the130 nm CMOS process. The power dissipation is only 1.3593 mW and the proposed circuit operates under an input voltage of 5V with an active area of $703{\mu}m^2$, ensuring that the proposed circuit is suitable for low-power applications.

• KIEAE Journal
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• v.11 no.1
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• pp.39-45
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• 2011

The concepts of interior design work have set forward an aesthetic and functional proposition to be answered by those who design spaces. The available range of suitable materials for interior use appears to be almost inexhaustible in this day and age. Now a day, relatively new fields of study on environmental-friendly interior examine humans'innate affinity for health and explore its implications for architecture and the built environment. A growing field of research suggests that spaces' relationship to aesthetics and environment can either help or hinder their occupants' health and wellness, productivity, and even their creativity. This paper presents several examples of already built apartment houses in practice, and discusses the demand of users of the spaces for health and sustainable environment, deepening the relationship between newly-constructed spaces and the remodeled ones. The considerations to some new and contemporary materials from the aspect of healthy indoor architecture design are presented in this paper. Designers need to rethink the conventional and high-tech interior environment in apartment houses with respect to perceived air quality, material emissions, and odors. The future of interior design is oriented on light shapeable materials which are able to create a unique memorable atmosphere. The primary assignment in accepting recent materials and proceedings is our responsibility to creating proposals, that are mainly safe, hygienic and environmentally proper.

• The Journal of the Korea Contents Association
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• v.8 no.3
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• pp.146-155
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• 2008

As the residential culture of Korea is transformed from house oriented to apartment oriented residential environment these days, the bedroom closets are changing into the built-in furniture such as built-in closets. As the life style of consumers become richer and wealthy, the bedroom furniture is changing to respond for the forms, function, and design characteristics of the consumer's demand. Therefore, in this study, the characteristics of the built-in closets such as structure, function and material were studied to analyze the basic changes and compared the normal closet to the built-in closet to analyze the elements in terms of environment and convenience. Moreover, to develop forms and designs to fit various characteristics and differences of the consumers, various forms of consumer demand were analyzed. Therefore, this study intended to provide the basic information for providing the efficient form and structure that enables the use of internal space as the consumer wishes to change the design elements, and other spaces to fit the changed residential environment.

• Environmental Engineering Research
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• v.24 no.4
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• pp.711-717
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• 2019

The application of advanced oxidation for the treatment of oil refinery wastewater under UV radiation by using nanoparticles of titanium dioxide was investigated. Synthetic wastewater prepared from phenol crystals; Power Glide SAE40 motor vehicle oil and water was used. Response surface methodology (RSM) based on the Box-Behnken design was employed to design the experimental runs, optimize and study the interaction effects of the operating parameters including catalyst concentration, run time and airflow rate to maximize the degradation of oil (SOG) and phenol. The analysis of variance and the response models developed were used to evaluate the data obtained at a 95% confidence level. The use of the RSM demonstrated the graphical relationship that exists between individual factors and their interactive effects on the response, as compared to the one factor at time approach. The obtained optimum conditions of photocatalytic degradation are the catalyst concentration of 2 g/L, the run time of 30 min and the airflow rate of 1.04 L/min. Under the optimum conditions, a 68% desirability performance was obtained, representing 81% and 66% of SOG and phenol degradability, respectively. Thus, the hydrocarbon oils were readily degradable, while the phenols were more resistant to photocatalytic degradation.

• The Journal of Sustainable Design and Educational Environment Research
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• v.11 no.1
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• pp.1-10
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• 2012

Establishing public kindergarten is very important in social welfare aspects. So far almost public kindergarten were built up as attached style in primary school. More independent style kindergarten is being requested for small land area, shorter commuting distance. But the standard design guideline of the independent public kindergarten is insufficient. The purpose of this study is to examine the architectural Planning direction for the standard design guideline of the independent public kindergarten. A result of this study can be suggested what kind of architectural Planning direction of independent public kindergarten is needed more acutely.

• Steel and Composite Structures
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• v.49 no.1
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• pp.19-30
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• 2023

Steel-concrete composite slabs represent a very efficient floor solution combining the key performance of two different materials: the steel and the concrete. Composite slab response is governed by the degree of the interaction between these two materials, mainly depending by chemical and mechanical bond. The latter is characterized by a limited degree of confinement if compared with the one of the rebars in reinforced concrete members while the former is remarkably influenced by the type of concrete and the roughness of the profiled surface, frequently lubricated during the cold-forming manufacturing processes. Indeed, owing to the impossibility to guarantee a full interaction between the two materials, a key parameter governing slab design is represented by the horizontal shear-bond strength, which should be always experimentally estimated. According to EC4, the design of the slab bending resistance, is based on the simplified assumption that the decking sheet is totally yielded, i.e., always in plastic range, despite experimental and numerical researches demonstrate that a large part of the steel deck resists in elastic range when longitudinal shear collapse is achieved. In the paper, the limit strain for composite slab, which corresponds to the slip, i.e., the debonding between the two materials, has been appraised by means of a refined numerical method used for the simulation of experimental results obtained on 8 different composite slab types. In total, 71 specimens have been considered, differing for the properties of the materials, cross-section of the trapezoidal profiled metal sheets and specimen lengths.

• Archives of design research
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• v.11 no.3
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• pp.69-76
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• 1998

The purpose of this study is to present a method of preparing for a more enduring built environment, being fully aware that, in consideration of time flowing from past to present, there is no ardlitecture in creation that is not abandoned. Efforts were made to find the problem solutions in relation to the hierardlial structure, evolvement and adaptation of living beings. The process of study was as follows, ·The built environment's affordance to human beings and the designer's role was explained. ·Having an understanding of the necessity of user minded planning, the architectural adaptation of the multi-layered hierarchy system of holon theory and adoption of time conception into architectural space were examined to explain that the importance in ardlitecture should be placed in transition, not in perfection. ·The design of Parc de La Villette by Bernard Tsdlumi was analysed from the above viewpoint. Having a practical case analysed, this study is expected to offer a basic information for use in case of visual presentation of a theoretical viewpoint.