• 한국산학기술학회논문지
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• 제11권10호
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• pp.4031-4040
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• 2010

건축의 시작은 벽체를 구축하는 작업이다. 고대 로마건축에서의 석축기법은 매우 다양하며 새로운 기술의 반복적인 실험을 통하여 로마제국시대의 위대한 건축물들을 완성할 수 있었다. 본 논문에서는 고대로마의 석축기법을 양식적, 구조적, 재료적 또한 의장적인 다양한 관점에서 연구하여 그 변화의 과정을 단계적으로 분석하였으며 심도있는 자료의 수집과 정리를 통하여 로마건축이 인류에게 남긴 위대한 유산의 일부분을 깊이 있게 파헤쳐 보았다. 아직도 우리에게 영향력을 미치고 있는 로마건축의 연속성을 뒷받침 하는 것은 건축의 시작인 석축기술에 있다는 것도 재확인 할 수 있었다. 다양한 실험적 정신이 훌륭한 건축물이 만들어지는 토대가 됨을 로마건축은 보여주고 있다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2006년도 추계 학술논문 발표대회 논문집
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• pp.47-51
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• 2006

Modern residing equipment developed much quantitatively along with economic growth but improvement for agreeable residing space of indoor environment is insufficient situation yet. Also, the latest sick-building syndrome discharging room contaminant such as Formaldehyde, toluene, radon etc. built house or buildings newly human body threaten. Radon of them is real condition that raise origination of lung cancer next to smoke. So, wish to in this research by one of solution way of these problems adsorption performance and specie performance excellent activated carbon to concrete bricks for deconstipating suppository that is room finish fare mix and examine closely after grasp physical, mechanical special quality, hazardous substance and specie performance effect. According to result that estimate environment efficiency evaluation, the $CO_2$ absorption amount displayed decrease effect more than about 90% in activated carbon metathesis rate 40% and radon release amount displayed tendency that decrease about $76{\sim}96%$ in activated carbon metathesis rate 40%.

• 한국재료학회지
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• 제29권10호
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• pp.603-608
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• 2019

Plastic waste is becoming a problem in various countries because of the difficulty of natural decomposition. One type is PET plastic(Polyethylene Terephthalate), which is often used as a bottle for soft drink packaging, and LDPE(Low Density Polyethylene), which is also widely used as a food or beverage packaging material. The use of these two types of plastic continuously, without good recycling, will have a negative impact on the environment. Building material waste is also becoming a serious environmental problem. This study aims to provide a solution to the problem of the above plastic waste and building material waste by making them into a mixture to be used as bricks. Research is carried out by mixing both materials, namely plastic heated at a temperature of $180-220^{\circ}C$ and building material waste that had been crushed and sized to 30-40 mesh with homogeneous stirring. The ratios of PET and LDPE plastic to building material waste are 9 : 1, 8 : 2, 7 : 3, 6 : 4 and 5 : 5. After heating and printing, density, water absorption and compressive strength tests are carried out. Addition of PET and LDPE plastic can increase compressive strength, and reduce water absorption, porosity and density. A maximum compressive strength of 10.5 MPa is obtained at the ratio of 6 : 4.

• 대한건축학회논문집:구조계
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• 제35권10호
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• pp.199-206
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• 2019

This study aims to recycle redmud which is a byproduct in the alumina industry. Redmud ceramics were prepared according to the type of raw materials by blending redmud with the raw materials used in the conventional clay bricks. In this paper, the compressive strength, water absorption ratio, and shrinkage of redmud ceramics prepared by mixing clay bricks were evaluated. Compressive strength and absorption ratio of redmud ceramics were compared with the clay brick criteria of KS L 4201. At the firing temperature of $1200^{\circ}C$, the specimens containing redmud only and the redmud with sandy loam and black clay were found to satisfy the 1st class of clay brick. The quality standard of compressive strength and absorption ratio was obtained by firing redmud with black clay and sandy loam at $1200^{\circ}C$. Also, when the redmud was mixed with black clay and feldspar, the 2nd class was satisfied when the sample was fired at $1100^{\circ}C$.

• 헤리티지:역사와 과학
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• 제46권2호
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• pp.206-219
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• 2013

발해의 고구려 계승을 보여주는 중요한 유적인 연해주 콕샤로프카-1 평지성에서 출토된 토벽체 4점을 과학적으로 분석하여 재료의 물리화학적 특성과 소성온도를 추정하고자 하였다. 분석 결과, 단면의 입자구성은 점토질과 석영, 장석 등이 혼재해 있으며, 일부 시편에서는 내부에 탄화된 유기물이 확인되었고, 이는 토벽의 강도를 높이기 위해 첨가된 것으로 판단된다. 결정구조 분석을 통해 주 구성광물을 동정한 결과, 석영(Quartz), 일라이트(Illite) 등이 확인되었으며, 일부 토벽의 표면 단장에 사용된 백색물질은 주 구성광물이 규선석(Silimanite)으로 밝혀졌다. 또한 대부분의 시편에서 적철석(Hematite)이 동정된 것과 다르게 뮬라이트(Mullite)가 존재하는 시편도 있는 것으로 보아 일부는 고온소성된 것으로 판단된다. 열분석에서는 $800{\sim}1,000^{\circ}C$ 사이에서 물라이트로 변화하는 발열피크가 존재하지 않고, $900^{\circ}C$ 이상에서 흡열피크가 존재하는 것으로 보아 $900^{\circ}C$ 이상에서 소성되었음을 추정할 수 있다.

• 건축역사연구
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• 제24권4호
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• pp.55-64
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• 2015

This paper aimed to identify architectural historical meaning of the brick-constructed platform of the west hall in Hwangnyoungsa buddhist temple site based on studying published the excavation survey report and comparing with other platforms of Silla remains. Mass and height of the building has a hierarchical structure within a buddhist temple site, this is applicable in Hwangnyongsa. So in case of a rank equal to or lower buildings than the west hall, those of platforms were built of brick-constructed. As stone relics, jidaeseoks are very narrow, I think that wooden pagoda and main hall's platform were built of brick in first construction period. West hall's platform was built at the late 6th~the mid of 7th century, these brick-remains were considered as a quite earlier construction period relics. Because in west hall there is no jidaeseok under bricks, and all bricks relics have a rectangular shape.

• 제어로봇시스템학회논문지
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• 제21권4호
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• pp.291-300
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• 2015

In the steel manufacturing process heat-endurance deterioration of a ladle used to cause a big accident. In this paper, an infrared imaging system and image analyzing procedure are proposed for inspecting refractory bricks of a ladle. The proposed algorithm contains following three parts: two-stage image selection procedure, reference point detection, and analysis of heat-endurance deterioration. Experiments were conducted with real data from a steel plant and detailed configuration of infrared imaging system was presented.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2007년도 International Conference
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• pp.365-371
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• 2007

인터넷 쇼핑 시장의 확산과 함께 소비자들은 이전보다 더욱 다양한 형태의 인터넷 쇼핑몰을 접할 수 있게 되었다. 따라서, 소비자들은 다양한 쇼핑몰의 선택의 기로에 서게 된 반면, 인터넷 쇼핑몰 업체의 입장에서는 고객의 유지가 매우 중요하다. 특히, 오프라인 기반을 갖춘 Brick & Clicks 인터넷 쇼핑몰의 경우에는 오프라인 고객을 온라인상에서도 그대로 유지하길 바랄 것이다. 그러나, 실제로는 많은 고객들이 오프라인 쇼핑몰과 온라인 쇼핑몰을 동일하게 이용하는 Brick & Clicks 쇼핑몰을 선택보다는 인터넷 상의 순수한 Pure-play 쇼핑몰을 선택하기도 한다. 이에 본 연구에서는 소비자가 Brick & Clicks 인터넷 쇼핑몰이나 Pure-play 인터넷 쇼핑몰을 선택하는 행동에 대해 스키마 관점에서 살펴보고자 한다. 본 연구에서는 인터넷 쇼핑몰에 대한 스키마 형성에 신뢰, 구조적 확신, 관계혜택이 영향을 준다고 보고, 총 514여명의 인터넷 쇼핑몰 사용자를 대상으로 실증분석을 하고 결과를 도출하였다. 분석결과 Pure-play 인터넷 쇼핑몰이 고객에게 더 높은 평가를 받는 것으로 나타나 Brick & Clicks 인터넷 쇼핑몰의 특화가 필요한 것으로 판단된다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2005년도 봄학술 발표회 논문집(II)
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• pp.417-420
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• 2005

Construction industry is one of the fastest growing sectors in the world. Rapid construction activity and growing demand of houses have lead to the short fall of traditional building materials, such as burnt bricks. It is better to replace the traditional materials by the good quality of building materials with the low cost and durable environment friendly building materials. In order to satisfy that purpose, the researchers need to vary of new and innovative building materials. This paper shows the properties of compressive strength of ocher for unburnt bricks.

• 대한산업공학회지
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• 제28권4호
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• pp.379-389
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• 2002

In this paper, we study the competition between two kinds of suppliers, a bricks and mortars(B&M) and a clicks and mortars(C&M). Using the circular spatial market model, we derive and analyze the Nash and Stackelberg equilibria as a function of offline market share and efficiency of online channel of the C&M supplier. The result can be summarized as follows: (1) Stackelberg equilibrium is always superior to the Nash equilibrium, (2) Under certain conditions, the price of online channel can be higher than that of offline channel, (3) It is impossible for the C&M supplier to encroach on all of the B&M supplier's market, (4) In some cases, the C&M supplier has incentive to lower the efficiency of its online channel for more profit.