• KIEAE Journal
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• 제10권1호
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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.

• 한국실내디자인학회논문집
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• 제19권1호
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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.

• 교육시설
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• 제21권3호
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• pp.29-32
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• 2014

• Transactions on Electrical and Electronic Materials
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• 제18권5호
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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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• 제11권1호
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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.

• 한국콘텐츠학회논문지
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• 제8권3호
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• pp.146-155
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• 2008

오늘날 우리나라의 주거문화가 일반주택에서 아파트 주거환경으로 확산되면서 안방가구 장롱에 변화도 일반장에서 붙박이장과 같은 맞춤형가구로 변화해 가고 있다. 소비자의 생활이 풍족하고 여유로워 짐으로써 안방가구도 개개인의 소비자 욕구에 맞는 형식과 기능, 디자인 특성으로 바뀌어져 가고 있다. 따라서 붙박이장의 특성으로 구조, 기능, 소재를 고찰하여 기본적인 변화를 분석하고, 일반장과 붙박이장을 비교 분석하여 환경에서의 변화요소와 편리성에서의 변화요소를 분석하였다. 또한 소비자의 자가지 특성과 개성에 맞는 형태와 디자인을 개발하기 위하여 다양한 소비자 욕구 형태를 분석하였다. 그러므로 본 연구는 주거환경의 변화에서 어울리는 디자인적인 요소와, 다른 공간에서의 변화에 소비자가 원하는 대로 내부공간 활용이 가능한 효율적인 형태 구조를 제시하기 위한 기초 자료로 제공하고자 하였다.

• Environmental Engineering Research
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• 제24권4호
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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.

• 교육녹색환경연구
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• 제11권1호
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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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• 제49권1호
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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.

• 디자인학연구
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• 제11권3호
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• pp.69-76
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• 1998

본연구는 과거에서 현재, 미래라는 시간의 흐름에서 생성에서 폐기로 귀결되는 건축물의 문제점을 인식하고, 보다 지속가능한 건축환경을 위한 방안을 제시하는데 그 목표를 둔다. 이에 문제해결의 방안을 생물체의 위계구조와 진화 및 적응에서 찾고자 하였으며, 연구의 진행과정은 다음과 같다. ·건축환경의 인간에 대한 지원성의 의미롸 디자이너의 역할에 대해 설명하였다. · 이용자 중심의 계획의 필요성을 인식하고, 홀론 이론에 따른 다충적 위계 시스템의 건축에의 적응과 건축공간에 시간의 개념을 도입함으로써 완결이 아닌 과정으로써의 건축의 중요성을 밝혔다. ·베르나르 츄미의 라 빌레뜨공원을 위에 인급한 이론적 관점에 분석하였다. 연구과정을 통해 구체적 사례를 분석해 봄으로, 이론적 관점을 적용한 시각적 대안 마련을 위한 하나의 기초적 정보가 될 수 있기를 기대한다.